CN113844191B

CN113844191B - Book cover production equipment

Info

Publication number: CN113844191B
Application number: CN202111160200.XA
Authority: CN
Inventors: 郑细华
Original assignee: Shantou Nuosheng Machinery Co ltd
Current assignee: Shantou Nuosheng Machinery Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-10-14
Anticipated expiration: 2041-09-30
Also published as: CN113844191A

Abstract

The invention relates to a book cover production device, which carries out corresponding clamping and conveying on an inner film roll according to the stepping conveying of a single base film, clamps and conveys the distance of the size corresponding to the single book cover each time, clamps and conveys the inner film roll to the base film and presses and cuts the inner film roll according to the size of the book cover to form a single inner film covered on the base film, forms a clamping-conveying-pressing-cutting mode, does not need to apply static electricity to the inner side surface of the inner film, and can correct in the subsequent working procedures even if the cut inner film is staggered when covering on the base film; and the books cover that cuts out is no longer subsidiary static by oneself, and follow-up also need not carry out destatic operation yet, reduces production processes, need not to adopt destatic equipment, when carrying out the pile up packing of finished product books cover, also can not adsorb each other because of static between the books cover simultaneously.

Description

Book cover production equipment

Technical Field

The invention relates to the technical field of book cover manufacturing, in particular to book cover production equipment.

Background

The book cover is a common stationery sleeved on the front cover and the back cover of the book and used for protecting the surface of the book. At present, a book cover in common use includes a base film 1 'and an inner film 2', as shown in fig. 1 and 2, a left side edge of the base film 1 'is folded toward a middle of the base film 1' to form a folded portion 3 'and covers the base film 1', so as to form a front seal of the book cover, and then an upper edge and a lower edge of the folded portion 3 'of the base film are heat-sealed with the base film to form a heat sealed edge 4'; the inner film 2' covers the inner side of the right side edge of the base film 1', and the upper edge and the lower edge of the inner film 2' of the base film 1' are also heat-sealed with the base film to form a hot edge seal 4'; the edge of the right side of the base film 1' is provided with a glue strip 5' along the length direction thereof, so that after the book cover passes through the gap between the base film 1' and the inner film 2', the redundant base film can be folded in half onto the inner film 2' along the book cover and adhered, thereby forming the back cover of the book cover.

At present, the production process of the book cover mainly comprises the following steps: continuously unreeling the base film, adopting a strip-shaped folding guide plate to gradually fold the left side of the base film to form the folding part in the continuous unreeling process, and simultaneously gluing the inner side of the edge of the right side to form the adhesive tape; then cutting the base film and the inner film according to the size of the book cover, applying static electricity on the inner side surface of the inner film, aligning the inner side surface of the inner film and the inner side surface of the base film, then mutually adsorbing to ensure that the inner film is attached to the base film, and respectively carrying out heat sealing on the attached base film and the upper edge and the lower edge of the inner film to form a single book cover; and finally, performing static electricity removal treatment on the book cover, and stacking and packaging the book cover.

However, in the above-mentioned production process, applying static electricity to the inner side of the inner film, and attaching the inner film to the base film, removing static electricity after molding, and stacking and packaging finished products have problems, which are specifically expressed as follows:

(1) When the inner film with static electricity is attached to the base film, the inner film is adsorbed to the base film through the static electricity, but once dislocation occurs between the inner film and the base film, the dislocation cannot be corrected due to the static electricity, so that the precise positioning of the inner film to the base film is required to be ensured during the attachment, and the high requirements on equipment precision and operation precision of production personnel are met;

(2) After a single book cover is formed by cutting, a large amount of static electricity remains on the inner film, so that relevant equipment is needed to remove the static electricity from the book cover, and the static electricity cannot be completely eliminated because the inner side surface of the inner film, which is provided with the static electricity, is attached to the base film, so that a small amount of static electricity remains on the book cover;

(3) Because of the reason of above-mentioned (2), books cover when piling up the packing, the static that remains on books cover can lead to books cover can adsorb each other when piling up and hug closely, can't adjust, influences books cover's the packing operation that piles up.

Disclosure of Invention

The invention aims to provide book cover production equipment which can realize electrostatic-free lamination of an inner film of a book cover, simplify the production flow and facilitate tube straightening, heat sealing and packaging of the inner film and a base film. The technical scheme is as follows:

a book cover production device comprises a rack, a base film unreeling mechanism, a floating roll set, a first transverse clamping and conveying mechanism, a gluing device, a folding and impressing device, a die cutting device, a second transverse clamping and conveying mechanism, an inner film unreeling mechanism, a longitudinal conveying mechanism and a discharging and conveying mechanism; the base film unwinding mechanism, the floating roller set, the first transverse clamping mechanism and the second transverse clamping mechanism are sequentially arranged on the rack from right to left, the longitudinal conveying mechanism is arranged on the rack, the starting end of the longitudinal conveying mechanism corresponds to the second transverse clamping mechanism, the gluing device and the folding and creasing device are arranged between the base film unwinding mechanism and the floating roller set, the cutting device is arranged at the second transverse clamping mechanism, the inner film unwinding mechanism is arranged above the longitudinal conveying mechanism, and the starting end of the discharging and conveying mechanism corresponds to the tail end of the longitudinal conveying mechanism; the method is characterized in that: the book cover production equipment also comprises a slitting and creasing device, a folding device, an inner film clamping and conveying device, a double-film pressing mechanism and two tube positive pressure edge heat sealing devices; the slitting and creasing device, the die cutting device and the folding device are arranged between the first transverse clamping and conveying mechanism and the second transverse clamping and conveying mechanism from right to left; the inner membrane clamping and conveying device, the double-membrane pressing mechanism and the two pipe positive pressure edge heat sealing devices are arranged on the longitudinal conveying mechanism from back to front, and the two pipe positive pressure edge heat sealing devices are arranged oppositely on the left and right.

Unless otherwise stated, the conveying direction of the base film before slitting (i.e., from the base film unwinding mechanism to the second transverse clamping and conveying mechanism) is from right to left, and the conveying direction of the base film after slitting (i.e., conveying on the longitudinal conveying mechanism) and the conveying direction of the inner film are from back to front. When the book cover formed finally is sent out from the longitudinal conveying mechanism, the folding part on the front side of the book cover is heat-sealed and then serves as the front seal of the book cover, the base film on the rear side of the book cover and the inner film are heat-sealed and then serve as the rear seal of the book cover, and the adhesive tape is arranged on the side edge of the rear seal.

The base film unwinding mechanism, the floating roller set, the first pinch mechanism and the second pinch mechanism jointly form a transverse conveying mechanism for conveying the base film from left to back, and a plurality of guide rollers are usually arranged between the base film unwinding mechanism and the floating roller set and between the floating roller set and the first pinch mechanism. The inner film unwinding mechanism and the inner film clamping and conveying device jointly form longitudinal conveying of the inner film from back to front, and a plurality of guide rollers are also arranged between the inner film unwinding mechanism and the inner film clamping and conveying device.

The base film unwinding mechanism and the inner film unwinding mechanism are usually driven by a servo motor to unwind through an unwinding roller.

The first transverse clamping and conveying mechanism and the second transverse clamping and conveying mechanism are generally used for driving two clamping and conveying rollers by adopting a stepping motor.

The longitudinal conveying mechanism and the discharging conveying mechanism are generally driven by a servo motor to carry out stepping conveying by a synchronous belt pulley.

The gluing device generally comprises a rubber strip wheel, a rubber water tank, a gluing roller and a gluing motor, wherein after the rubber strip wheel unreels the rubber strips, the gluing motor drives the gluing roller to glue the rubber strips, and then the rubber strips are attached to the inner side of the rear edge of the base film.

The folding and creasing device is used for creasing the inner side of the front edge of the base film roll in the continuous unreeling process of the base film roll, and a creasing line with the length direction consistent with that of the base film roll is formed on the inner side of the front edge of the base film roll and serves as a folding line for folding each base film.

The slitting and creasing device is used for creasing the base film roll in a tangent line according to the size of the book cover along the width direction of the base film roll, dividing the base shape of each book cover on the base film roll, and taking the part between every two adjacent creasing as the base film of a single book cover.

The die cutting device is used for die cutting the two side edges of each base film according to the shape and the size of the book cover.

And (3) the cutting device is used for cutting the base film roll according to the cutting impression scribed in the step (2) to form a single base film. The cutting device generally comprises a cutter and a cylinder for driving the cutter to lift.

The inner film clamping and conveying device is used for conveying and cutting the inner film at a fixed length, the inner film clamping and conveying device is arranged above the longitudinal conveying mechanism, and the inner film is covered on the base film below after the inner film is cut, so that the double sides of the inner film which is conveyed and covered on the base film can be corrected in the subsequent process; the double-film pressing mechanism is used for pressing the inner film on the base film when the inner film clamping and conveying device cuts the inner film at a fixed length, and a cylinder is usually adopted to drive a pressing wheel or a pressing roller to descend for film pressing.

The pipe positive pressure side heat sealing device is used for timely correcting the relative position between the inner film and the base film in the process of compressing the two sides of the inner film and the base film, ensures the accuracy of the heat sealing position and is beneficial to improving the production efficiency and quality of the book cover.

The whole book cover production equipment has the working process that:

(1) Continuously unreeling the base film roll from right to left, gluing the inner side of the rear edge of the base film roll to form a rubber strip (corresponding to the rubber strip at the rear sealing edge of the book cover), wherein the rubber strip corresponds to the length direction of the base film roll;

(2) The base film roll is transferred to step conveying between the first transverse clamping mechanism and the second transverse clamping mechanism, tangent indentation is carried out on the base film roll along the width direction of the base film roll according to the size of the book cover through a slitting indentation device, the basic shape of each book cover is divided on the base film roll, and the part between two adjacent tangent indentations is used as the base film of a single book cover;

(3) Die cutting is carried out on the two side edges of each base film through a die cutting device according to the shape and the size of the book cover, and then the front edge of the base film is turned over towards the middle part of the base film through a turning device to form a folding part (corresponding to the front seal of the book cover);

(4) Cutting the base film roll according to the cutting line indentation marked in the step (2) by a cutting device to form a single base film;

(5) The single base film is conveyed step by step from back to front, the inner film roll is also conveyed step by step from back to front, the inner film roll is clamped and conveyed step by an inner film clamping and conveying device, the distance corresponding to the size of a single book cover is clamped and conveyed each time, the inner film roll is clamped and conveyed to the base film, the inner film roll and the base film are pressed by a double-film pressing mechanism, and then the inner film roll is cut off according to the size of the book cover to form a single inner film covering the base film;

(6) The heat sealing device for the positive pressure edge of the tube is used for performing positive and heat sealing on the corresponding edges of the inner film and the base film to form a finished book cover;

(7) And the finished book covers are sent out through a discharging and conveying mechanism, and are stacked and packaged.

The inner film roll is correspondingly clamped and conveyed according to the stepping conveying of a single base film, the inner film roll is clamped and conveyed to the base film at a distance of the size corresponding to a single book cover, the inner film roll is pressed and cut off according to the size of the book cover, a single inner film covering the base film is formed, a clamping, pressing and cutting mode is formed, static electricity is not required to be applied to the inner side surface of the inner film, and even if the cut inner film is staggered when covering the base film, the dislocation of the base film and the inner film can be corrected through a pipe positive blank pressing heat sealing device; and the books cover that cuts out is no longer subsidiary static by oneself, and follow-up also need not carry out destatic operation yet, reduces production processes, need not to adopt destatic equipment, when carrying out the pile up packing of finished product books cover, also can not adsorb each other because of static between the books cover simultaneously.

As a preferred scheme of the invention, the inner film clamping and conveying device comprises an inner film clamping and conveying support, a bottom plate, an inner film clamping and conveying mechanism, an inner film pressing mechanism and an inner film cutting mechanism, wherein the bottom plate, the inner film pressing mechanism and the inner film cutting mechanism are sequentially arranged on the inner film clamping and conveying support according to the conveying direction of the inner film; the inner membrane clamping and conveying mechanism is arranged above the bottom plate and comprises an inner membrane clamping and conveying plate, an inner membrane clamping and conveying support plate, an inner membrane clamping and conveying driving device, an inner membrane clamping and conveying translation seat, an inner membrane clamping and conveying translation mechanism and a plurality of inner membrane clamping and conveying guide columns; the inner membrane clamping and conveying translation mechanism is arranged on the inner membrane clamping and conveying support, the inner membrane clamping and conveying translation seat is installed at the power output end of the inner membrane clamping and conveying translation mechanism, the inner membrane clamping and conveying driving device is installed on the inner membrane clamping and conveying translation seat, the upper surface of the inner membrane clamping and conveying plate is connected with the power output end of the inner membrane clamping and conveying driving device, and the lower surface of the inner membrane clamping and conveying plate is opposite to the upper surface of the bottom plate; the inner membrane clamping and conveying plate is capable of moving up and down along the inner membrane clamping and conveying guide column.

The guide rollers are used for conveying the inner film into the bottom plate. The inner film clamping and conveying translation mechanism is used for driving the inner film clamping and conveying driving device to translate, the inner film is clamped and conveyed in a fixed length mode, and the displacement distance of the inner film clamping and conveying translation mechanism corresponds to the size of the book cover.

The inner membrane pressing mechanism and the inner membrane cutting mechanism are used for pressing and cutting according to the size of the book cover. The inner membrane pressing mechanism comprises a pressing plate and at least one pressing cylinder, the pressing cylinder is installed on the inner membrane clamping and conveying support, the cylinder body faces downwards, and the upper surface of the pressing plate is connected with a piston rod of the pressing cylinder. The inner membrane cutting mechanism comprises an upper cutter plate, a lower cutter plate and at least one cutter cylinder, the cutter cylinder is installed on the inner membrane clamping and conveying support, the cylinder body faces downwards, and the upper side edges of the upper cutter plate and the lower cutter plate are connected with a piston rod of the cutter cylinder.

The inner membrane clamping translation mechanism generally adopts a servo motor to drive a synchronous belt pulley to drive an inner membrane clamping translation seat to move, and specifically comprises a front mounting seat, a rear mounting seat, at least one guide rod, a guide block, a servo motor, a driving wheel, a driven wheel and a synchronous belt, wherein the front mounting seat and the rear mounting seat are respectively arranged on an inner membrane clamping support at the left end and the right end, the guide rod is arranged along the front-back direction, the front end and the rear end of the guide rod are respectively arranged on the front mounting seat and the rear mounting seat, the servo motor and the driving wheel are both arranged on the rear mounting seat, an output shaft of the servo motor is in transmission connection with the driving wheel, the driven wheel is arranged on the front mounting seat, the synchronous belt is sleeved on the driving wheel and the driven wheel, and the inner membrane clamping translation seat is movably arranged on the guide rod and is connected with the synchronous belt through the guide block.

The inner membrane clamping and conveying driving device generally comprises two inner membrane clamping and conveying cylinders, the two inner membrane clamping and conveying cylinders are installed on the inner membrane clamping and conveying translation seat and located on two sides of the guide block, and two ends of the upper surface of the inner membrane clamping and conveying plate are respectively connected with piston rods of the corresponding inner membrane clamping and conveying cylinders.

The inner membrane clamping and conveying support generally comprises a left support plate, a right support plate, a front support seat and a plurality of support sheets, wherein the left support plate and the right support plate are oppositely arranged from left to right, the front support seat is horizontally arranged, two side edges of the front support seat are respectively and correspondingly arranged on the left support plate and the right support plate, and the support sheets are uniformly arranged on the outer sides of the left support plate and the right support plate; two sides of bottom plate and many the both ends of deflector roll are all installed correspondingly in left branch fagging and right branch fagging, and inner membrance pinch mechanism sets up between left branch fagging and right branch fagging, and inner membrance hold-down mechanism and inner membrance cut mechanism and all install on the front support seat.

The inner film is sent into the bottom plate under traction, after entering the bottom plate, the inner film clamping and conveying driving device drives the inner film clamping and conveying plate to press downwards, then the inner film clamping and conveying translation mechanism drives the inner film clamping and conveying driving device and the inner film clamping and conveying plate to convey the inner film to the inner film pressing mechanism and the inner film cutting mechanism, and the clamping distance of the inner film clamping and conveying translation mechanism corresponds to the size of the inner film; then the inner film pressing mechanism further presses the inner film, the inner film cutting mechanism cuts the pressed inner film, and the cut inner film covers the base film; when the inner film pressing mechanism presses the inner film, the inner film clamping and conveying driving device drives the inner film clamping and conveying plate to ascend, the inner film is loosened, and then the inner film clamping and conveying translation mechanism drives the inner film clamping and conveying driving device and the inner film clamping and conveying plate to reset so as to carry out next clamping and conveying operation.

As a further preferable scheme of the invention, the tube positive pressure side heat sealing device comprises a tube positive pressing component and a heat sealing component; the positive pipe pressing component is arranged on one side of the longitudinal conveying mechanism and comprises a positive pipe supporting seat, a strip-shaped supporting block, a positive pipe strip and a positive pipe strip driving mechanism capable of driving the positive pipe strip to perform front-back translation and lifting actions, the positive pipe strip driving mechanism is arranged on the positive pipe supporting seat, the strip-shaped supporting block is arranged on the positive pipe supporting seat and has a front-back trend, the positive pipe strip is arranged along the front-back direction and is positioned on the outer side of the strip-shaped supporting block, the upper part of the inner side surface of the positive pipe strip is provided with a strip-shaped pressing piece extending along the front-back direction, and the strip-shaped pressing piece is positioned on the upper side of the strip-shaped supporting block and is matched with the strip-shaped supporting block; the heat-seal component corresponds to the tube positive pressure component, the heat-seal component comprises a heat-seal knife and a heat-seal lifting mechanism capable of driving the heat-seal knife to lift, the heat-seal lifting mechanism is installed on the rack, and the heat-seal knife is located above the strip-shaped supporting block and located on the inner side of a tube positive strip.

The inner side and the outer side are based on the longitudinal conveying mechanism, and the inner side is regarded as close to the longitudinal conveying mechanism and the outer side is regarded as far away from the longitudinal conveying mechanism.

In an initial state, the distance between the two tube positive strips is slightly larger than the width of the overlapped base film and the inner film (namely the tube positive base film and the inner film are not used), and gaps are reserved between the strip-shaped pressing pieces on the tube positive strips and the corresponding strip-shaped supporting blocks. When the device works, the longitudinal conveying mechanism stably and synchronously conveys unformed book covers to the positions below the two heat-sealing assemblies, and the two sides of the book covers are respectively positioned in gaps between the strip-shaped supporting blocks and the strip-shaped pressing sheets of the corresponding tube positive pressing assemblies; when positions, needing heat sealing, on two sides of the book cover reach positions under the two heat sealing assemblies, the book cover is temporarily stopped by the longitudinal conveying mechanism, then the tube front driving mechanisms of the two tube front pressing assemblies respectively drive the corresponding tube front to move towards the longitudinal conveying mechanism in a translation mode, the two tube front are made to move in opposite directions, the positions of two layers of membrane materials on the longitudinal conveying mechanism are subjected to tube correction, then the corresponding tube front is driven to move downwards simultaneously until the two strip pressing pieces press the two side edges of the book cover on the two strip supporting blocks, and the tube front pressing assemblies realize timely correction of the positions of the base membrane and the inner membrane in the process of pressing the book cover; and then, the heat-sealing lifting mechanisms in the two heat-sealing assemblies drive the corresponding heat-sealing knives to descend to be matched with the corresponding strip-shaped supporting blocks, so that the heat-sealing work of the book cover is completed.

The heat-seal lifting mechanism generally comprises a heat-seal lifting cylinder, a heat-seal lifting seat, a plurality of heat-seal guide columns and a plurality of heat-seal guide sleeves, wherein a cylinder body of the heat-seal lifting cylinder is installed on the base, a piston rod of the heat-seal lifting cylinder faces downwards and is connected with the heat-seal lifting seat, each heat-seal guide column is installed on the heat-seal lifting seat, each heat-seal guide sleeve is installed on the base and is respectively sleeved on the corresponding heat-seal guide column, and a heat-seal cutter is installed on the heat-seal lifting seat. During operation, the piston rod of the heat-seal lifting cylinder stretches to drive the heat-seal lifting seat and the heat-seal knife to ascend or descend by a certain height, and the heat-seal lifting seat and the heat-seal knife can ascend and descend more stably through sliding fit between each heat-seal guide column and each heat-seal guide sleeve.

As a further preferable scheme of the present invention, the tube positive bar driving mechanism comprises a tube positive lifting seat, a tube positive lifting mechanism capable of driving the tube positive lifting seat to lift, a spring connecting piece, a tube positive tension spring, at least one tube positive guide bar, at least one tube positive guide wheel and at least two tube positive guide columns, wherein the tube positive lifting mechanism is mounted on the tube positive support seat; the spring connecting piece is arranged on the tube positive strip, the tube positive tension spring is arranged between the strip-shaped supporting block and the spring connecting piece, the inner end of the tube positive tension spring is connected with the strip-shaped supporting block, and the outer end of the tube positive tension spring is connected with the spring connecting piece; the tube positive guide strip is arranged on the tube positive strip, the inner side surface of the tube positive guide strip is provided with an upper vertical guide surface, an inclined guide surface and a lower vertical guide surface which are sequentially connected from top to bottom, the lower vertical guide surface is positioned on the inner side of the upper vertical guide surface, and the inclined guide surface is gradually inclined outwards from the upper end to the lower end of the inclined guide surface; the lower part of the tube right guide strip is provided with a stop block which is positioned right below the tube right lifting seat; the tube positive guide wheels are in one-to-one correspondence with the tube positive guide strips in the same number, the tube positive guide wheels can be rotatably arranged on the tube positive lifting seat, the axes of the tube positive guide wheels are in the front-back trend, and the tube positive guide wheels are in rolling fit with the inner side surfaces of the corresponding tube positive guide strips; each tube positive guide post is arranged on a tube positive strip, at least two strip-shaped through holes extending along the left-right direction are arranged on the tube positive support seat, the number of the strip-shaped through holes is the same as that of the tube positive guide posts, the strip-shaped through holes correspond to that of the tube positive guide posts one by one, and the tube positive guide posts are respectively positioned in the corresponding strip-shaped through holes; each tube positive guide post is sleeved with a compression spring, the compression spring is positioned between the tube positive strip and the tube positive support seat, the upper end of the compression spring is in close contact with the tube positive strip, and the lower end of the compression spring is in close contact with the tube positive support seat.

In the tube positive bar driving mechanism, the tube positive tension spring is used for applying an acting force moving inwards to the spring connecting piece, so that the tube positive bar, the tube positive guide bar and each tube positive guide post have a trend of moving towards the longitudinal conveying mechanism, and the inner side surface of the tube positive guide bar is tightly attached to the corresponding tube positive guide wheel; each compression spring can exert ascending effort to the positive strip of pipe to the cooperation is just drawn spring and is made the position of positive strip of pipe steady.

In the initial state, the tube positive guide wheel is in contact fit with the upper vertical guide surface of the tube positive guide strip. When the device works, when positions needing heat sealing on two sides of a book cover reach positions right below two heat sealing assemblies, two tube positive pressing assemblies act simultaneously, a tube positive lifting mechanism of a tube positive driving mechanism drives a tube positive lifting seat to descend to drive a tube positive guide wheel to roll from top to bottom along the inner side surface of a tube positive guide strip (at the moment, the tube positive guide wheel rolls to a lower vertical guide surface from an upper vertical guide surface through an inclined guide surface), and the inner side surface of the tube positive guide strip is tightly attached to the corresponding tube positive guide wheel under the action of a tube positive tension spring, so that the tube positive guide strip can translate towards a longitudinal conveying mechanism when the tube positive guide wheel rolls downwards along the inclined guide surface, the tube positive lifting seat drives the tube positive guide strip and the tube positive guide strip to descend after being in contact with a blocking block of the tube positive guide strip below the tube positive guide strip (at the moment, a compression spring is in a compressed state), the two tube positive strips can simultaneously translate in opposite directions, the positions of the upper base film and the inner film of the longitudinal conveying mechanism are jointly corrected, and the tube positive guide strip and the inner film can be pushed to pass through the corresponding pressing strip in the corresponding tube positive strip in the process.

Above-mentioned spring coupling installs on the middle part of managing positive strip usually, manages positive guide strip, manages the quantity of guide post and be two, and two are managed positive guide strip upper ends and all install on managing positive strip and set up for the spring coupling symmetry, and the upper end of two tub positive guide posts is all installed on managing positive strip and set up for the spring coupling symmetry for the application effort of managing positive strip is even, makes the positive strip of pipe go up and down and translation motion more steady.

The tube positive guide wheel usually adopts a rolling bearing, an inner ring of the rolling bearing is fixedly arranged on the tube positive lifting seat, and an outer ring of the rolling bearing is in rolling fit with the inner side surface of the tube positive guide strip.

The pipe positive lifting mechanism generally adopts a cylinder, a cylinder body of the cylinder is installed on a rack, a piston rod of the cylinder faces upwards and is connected with a pipe positive lifting seat, and the piston rod of the cylinder can stretch and retract to drive the pipe positive lifting seat to ascend or descend by a certain height.

As a still further preferable scheme of the present invention, the tube positive pressure edge heat sealing device further comprises a position adjusting mechanism, the position adjusting mechanism corresponds to the tube positive support seats of the tube positive pressing assembly one to one, the position adjusting mechanism comprises a horizontal guide rail, an adjusting screw rod and an operating handle, the horizontal guide rail is mounted on the rack and has a left-right direction, the adjusting screw rod is rotatably mounted on the rack and is parallel to the horizontal guide rail, the operating handle is mounted at one end of the adjusting screw rod, the tube positive support seat is mounted on the horizontal guide rail and is in sliding fit with the horizontal guide rail, and a screw hole meshed with the adjusting screw rod is arranged on the tube positive support seat. By adopting the structure, the positions of the tube positive supporting seats of the corresponding tube positive pressing assemblies in the left and right directions can be respectively adjusted through the two position adjusting mechanisms, so that the distance between the two tube positive strips can be adjusted, and the device is suitable for performing tube positive pressing and pressing on book covers with different widths; during adjustment, the adjusting screw rod can be rotated by operating the handle to drive the tube positive supporting seat of the tube positive pressing assembly to move leftwards or rightwards for a certain distance along the horizontal guide rail.

As a further preferred scheme of the present invention, the slitting and creasing device comprises a rolling fixed seat, a base film pressing plate, a slitting and creasing lifting mechanism capable of driving the base film pressing plate to lift, at least one rolling and stretching sheet, a rolling wheel, a translation seat and a slitting and creasing translation mechanism capable of driving the translation seat to translate left and right, wherein the rolling fixed seat is installed on the rack, the rolling and stretching sheet is arranged on the top surface of the rolling fixed seat, and the rolling and stretching sheet is strip-shaped and extends along the front-back direction; the base film pressing plate is arranged right above the rolling fixed seat and provided with strip-shaped through holes extending along the front-back direction, and the strip-shaped through holes correspond to the rolling stretching pieces in position; the rolling wheel is rotatably arranged on the translation seat, the axis of the rolling wheel is in the left-right direction, and the rolling wheel is positioned in the strip-shaped through hole and matched with the rolling stretching sheet.

The number of the rolling stretching sheets is usually two, and the two rolling stretching sheets are respectively arranged on the top surface of the rolling fixing seat in the front-back direction and are matched with the rolling wheels.

The slitting indentation lifting mechanism comprises a lifting cylinder, a lifting seat, a plurality of guide columns and a plurality of guide sleeves, wherein the lifting seat is arranged below the base film pressing plate, each guide column is arranged between the base film pressing plate and the lifting seat, the upper end of each guide column is connected with the base film pressing plate, and the lower end of each guide column is connected with the lifting seat; each guide sleeve is arranged on the rack and is respectively sleeved on the corresponding guide post; the cylinder body of the lifting cylinder is arranged on the frame, and the piston rod of the lifting cylinder faces upwards and is connected with the lifting seat. During operation, the flexible drive lift seat of piston rod of accessible lift cylinder rises or descends, and each guide post of rethread drives the ascending or certain height that descends of base film pressure strip to through the cooperation between each guide post and each uide bushing, make the lift of lift seat and base film pressure strip more steady.

The slitting indentation translation mechanism comprises a horizontal guide rail, a translation motor, a driving belt wheel, a driven belt wheel and an annular synchronous belt, wherein the horizontal guide rail is arranged on the rack and arranged along the left and right directions, and the translation seat is arranged on the horizontal guide rail and is in sliding fit with the horizontal guide rail; the translation motor is installed in the frame, and driving pulley, driven pulley rotatable installation are in the frame, and driving pulley and translation motor's output shaft transmission is connected, and driving pulley and driven pulley are together with the tensioning of annular hold-in range, and annular hold-in range has two straightways of controlling the trend, and wherein a straightway is connected with the translation seat. When the horizontal type rolling machine works, the driving belt wheel can be driven to rotate forwards or reversely by the horizontal motor, and the horizontal moving seat and the rolling wheel are driven to move forwards or backwards for a certain distance along the horizontal guide rail by a straight line segment of the annular synchronous belt.

The rolling wheel is usually mounted on a translation seat by means of an adjusting cylinder; the cylinder body of the adjusting cylinder is arranged on the translation seat, the piston rod of the adjusting cylinder faces downwards, and the rolling wheel is rotatably arranged on the piston rod of the adjusting cylinder. By adopting the structure, the height position of the rolling wheel can be adjusted by adjusting the air cylinder, so that the size of the gap between the rolling wheel and the rolling stretching sheet can be adjusted, the indentation of base films with different thicknesses can be adapted, and the pressure of the rolling wheel on the base films can be conveniently adjusted.

The rolling wheel adopts a ball bearing, and the inner ring of the ball bearing is fixedly arranged on the piston rod of the adjusting cylinder. The outer ring surface of the ball bearing forms the wheel surface of the rolling wheel and is matched with the rolling stretching sheet.

When the device works, the base film waiting for indentation moves from right to left in a clearance mode under the drive of the second transverse clamping and conveying mechanism and passes between the rolling fixed seat and the base film pressing plate; when the position of the surface of the base film, which needs to form a cutting crease line, reaches between a rolling stretching sheet and a rolling wheel, the base film stops moving, a cutting indentation lifting mechanism drives a base film pressing plate to descend, the base film is pressed on a rolling fixing seat through the base film pressing plate, then a cutting indentation translation mechanism drives a translation seat to translate forwards or backwards, the wheel surface of the rolling wheel and the rolling stretching sheet are mutually pressed, the rolling wheel is driven to roll from one end of the rolling stretching sheet to the other end of the rolling stretching sheet (the rolling wheel can also move back and forth between the two ends of the rolling stretching sheet) in a passive mode, and the position of the surface of the base film, which corresponds to the strip-shaped through hole, is indented to form a cutting crease line in the front and back directions; then, the slitting indentation lifting mechanism drives the base film pressing plate to ascend and reset, the base film on the rolling fixed seat is loosened, the base film is driven by the second transverse clamping and conveying mechanism to continuously move backwards, and the next position, where a crease line needs to be formed, on the surface of the base film is moved to a position between the rolling stretching sheet and the rolling wheel; so reciprocal, this kind of divide and cut indentation device can carry out the indentation automatically to the base film surface in order to form and cut the indentation line, cuts the indentation line and both had carried out the line of cutting that books cover was cut as follow-up cutting device, still can effectively prevent to cause the damage to the base film, and the indentation is effectual.

As a further preferable scheme of the invention, the folding device comprises a supporting plate, a folding top film plate and a folding mechanism, the supporting plate is horizontally arranged on the frame, the folding top film plate is horizontally attached to the supporting plate, a gap through which the base film can pass is arranged between the folding top film plate and the supporting plate, and the folding top film plate is provided with a first side edge consistent with the conveying direction of the base film; the folding mechanism comprises a folding plate and a folding lifting driving mechanism capable of driving the folding plate to lift and move to the upper side of the folding top film plate, a through hole is formed in the front side of the first side edge of the folding top film plate on the supporting plate, the folding plate is installed on the power output end of the folding lifting driving mechanism and is located in the through hole, and the folding plate is matched with the through hole in shape.

Before the base film is sent to the folding top film plate, a crease line is pressed on the base film along the length direction of the base film through a folding creasing device, the first side edge of the folding top film plate corresponds to the position of the crease line, and the crease line is used as a folding line for folding the base film. When the base film is conveyed to the folding device, the base film is positioned in a gap between the folding top film plate and the supporting plate, the folding crease line of the base film is completely aligned with the first side edge of the folding top film plate, and the part of the base film needing to be folded is positioned on the folding board; then the hem lift actuating mechanism drives the hem board and rises and remove to the top of hem ejector diaphragm plate, and in the removal process of hem board, promote the turn-over portion of base film and turn over along the crease line to final flip is on hem ejector diaphragm plate, and the opposite side base film that turns over the crease line receives the limiting displacement of hem ejector diaphragm plate in vertical direction owing to be in the clearance, can not receive the influence that the hem board removed.

The through hole is generally provided with a second side edge which vertically corresponds to the first side edge, when the base film is conveyed to the gap, the crease line of the base film, the first side edge of the flanging top film plate and the second side edge of the through hole on the supporting plate vertically correspond to each other, so that one side of the crease line of the base film is positioned on the supporting plate, the other side of the crease line is positioned on the flanging plate, and the flanging plate can be used for folding the base film above the flanging plate conveniently.

The upper surface of the flanging plate is flush with the surface of the supporting plate, so that the base film can be folded in a horizontal state, and the folding precision of the base film is improved. An inclined plane is arranged between the corresponding edge of the upper surface of the folded plate and the second side edge and the lower surface of the folded plate; when the hem board rises, the inclined plane can assist the hem board to promote the base film better, further improves the stability that the base film turned over.

In addition, a folding film pressing mechanism is arranged on the rear side of the folding top film plate, the folding film pressing mechanism can adopt a mode that the air cylinder drives the film pressing plate to press downwards, the base film is pressed downwards after the base film is folded, the folded part of the base film can be more attached, and the corner of the folded part is prevented from upwarping.

As a still further preferable scheme of the present invention, the hemming lift driving mechanism includes a hemming mounting bracket, a hemming driving cylinder, and a first connecting rod; the edge folding mounting bracket is arranged below the supporting plate, the cylinder body of the edge folding driving cylinder is arranged on the edge folding mounting bracket in the front-back direction, and the tail end of the cylinder body of the edge folding driving cylinder is hinged with the edge folding mounting bracket; the lower end of the first connecting rod is hinged with a piston rod of the edge folding driving cylinder, the middle of the first connecting rod is rotatably connected with the edge folding mounting bracket, and the upper end of the first connecting rod is hinged with the lower surface of the edge folding plate. The flanging driving cylinder pushes the lower end of the first connecting rod and the cylinder body to swing downwards at the same time, the lower end of the first connecting rod correspondingly moves downwards, and the middle part of the first connecting rod is rotatably connected to the flanging installation support, so that the upper end of the first connecting rod moves upwards to enable the flanging plate to ascend, and the flanging plate pushes the base film to turn upwards; the lower end of the first connecting rod descends to the lowest point and then ascends along with the pushing of the flanging driving cylinder, at the moment, the flanging plate moves downwards to the upper portion of the flanging top film plate after passing through the highest point, and the base film is folded under the pushing of the flanging plate.

The hem mounting bracket can comprise a left fixing plate, a right fixing plate, an air cylinder movable seat and an air cylinder mounting seat, wherein the left fixing plate and the right fixing plate are opposite in front and back; the middle parts of the two first connecting rods and the lower ends of the two second connecting rods are respectively and correspondingly rotatably connected with the left fixing plate and the right fixing plate.

In addition, in order to improve the stability of the hemming plate in the lifting process, a second connecting rod can be arranged on the front side or the rear side of the first connecting rod, the lower end of the second connecting rod is rotatably connected with the hemming mounting bracket, and the upper end of the second connecting rod is hinged with the lower surface of the hemming plate; when the folding plate is lifted, the second connecting rod rotates along with the lifting plate to further support the folding plate; the folding edge driving air cylinder is characterized in that a transmission shaft can be arranged, the number of the first connecting rods and the number of the second connecting rods are two, the two first connecting rods and the two second connecting rods are respectively and correspondingly arranged in the left-right direction, a piston rod of the folding edge driving air cylinder is hinged to the middle of the transmission shaft, and the left end and the right end of the transmission shaft are respectively and correspondingly fixedly connected with the lower ends of the two first connecting rods.

Compared with the prior art, the invention has the following advantages:

(1) The book cover production equipment carries out corresponding clamping and conveying on the inner film roll according to the stepping conveying of a single base film, clamps and conveys the inner film roll to the base film each time according to the distance of the corresponding size of the single book cover, and compresses and cuts the inner film roll according to the size of the book cover to form a single inner film covered on the base film, thereby forming a clamping, pressing and cutting mode, not applying static electricity to the inner side surface of the inner film, and even if the cut inner film is staggered when covering the base film, the book cover production equipment can also carry out correction in the subsequent process; the cut book covers are not attached with static electricity, the subsequent static electricity removing operation is not needed, the production process is reduced, static electricity removing equipment is not needed, and meanwhile, the book covers cannot be mutually adsorbed due to the static electricity when the finished book covers are stacked and packaged;

(2) After the inner film is clamped and covered on the base film, the positions of the base film and the inner film are corrected in time in the process of pressing the two sides of the book cover on the longitudinal conveying mechanism through the two single-power film tube positive pressure side heat sealing devices, the accuracy of the two heat sealing assemblies on the heat sealing positions of the two sides of the book cover is ensured, and the qualification rate of the finished book cover is improved;

(3) In the stepping conveying process of the base film, the surface of the base film can be automatically indented through the slitting and indenting device to form a slitting and indenting line, the slitting and indenting line is used as a slitting line for book cover slitting of a subsequent cutting device, the base film can be effectively prevented from being damaged, and the indenting effect is good;

(4) The flanging plate is driven to ascend and move to the position above the flanging top film plate through the flanging lifting driving mechanism in advance, in the moving process of the flanging plate, the turning part of the base film is pushed to turn upwards along the longitudinal creasing line, and finally the turning cover is turned on the flanging top film plate, so that the base film is turned accurately along the longitudinal creasing line, and the qualified rate of products is improved; and the base film on the other side of the folding crease line is subjected to the limiting action of the folding top film plate in the vertical direction due to the position in the gap, and cannot be influenced by the movement of the folding board.

Drawings

FIG. 1 is a schematic view of the structure of a book cover according to the present description;

FIG. 2 is a cross-sectional view taken along O-O in FIG. 1;

FIG. 3 is a schematic structural view of a preferred embodiment of the present invention;

FIG. 4 is a schematic structural diagram of the slitting and creasing device of FIG. 3;

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a schematic structural view of the folding device in FIG. 3;

FIG. 7 is a view of FIG. 6 in an oblique upward direction;

FIG. 8 is a schematic view of the hem plate of FIG. 6 as it rises;

FIG. 9 is a view of FIG. 8 in an oblique upward direction;

FIG. 10 is a schematic structural view of the inner membrane clamping and conveying device in FIG. 3;

FIG. 11 is a top view of FIG. 10;

FIG. 12 isbase:Sub>A cross-sectional view taken along A-A of FIG. 11;

FIG. 13 is a schematic view of the construction of the two tube positive pressure edge heat sealing apparatus of FIG. 3;

FIG. 14 is a schematic structural view of the two tube positive clamping assembly and position adjustment mechanism of FIG. 13;

FIG. 15 is a front view of FIG. 14;

wherein, each figure is shown as:

fig. 1 to 2:1' -basal lamina, 2' -inner lamina, 3' -basal lamina fold, 4' -heat seal edge, 5' -adhesive tape;

FIG. 3: 1-a frame, 2-a base film unreeling mechanism, 3-a first transverse clamping and conveying mechanism, 4-a gluing device, 5-a folding and creasing device, 6-a slitting and creasing device, 7-a die cutting device, 8-a folding device, 9-a cutting device, 10-a longitudinal conveying mechanism, 11-an inner film unreeling mechanism, 12-an inner film clamping and conveying device, 13-a double-film pressing mechanism, 14-a pipe positive pressure edge heat sealing device and 15-a discharging and conveying mechanism;

fig. 4 to 5: 601-rolling fixed seat, 602-base film pressing plate, 6021-strip-shaped through hole, 603-cutting indentation lifting mechanism, 6031-lifting cylinder, 6032-lifting seat, 6033-guide column, 6034-guide sleeve, 604-rolling stretching sheet, 605-rolling wheel, 606-adjusting cylinder, 607-translation seat, 608-cutting indentation translation mechanism, 6081-horizontal guide rail, 6082-translation motor, 6083-driven pulley and 6084-annular synchronous belt;

fig. 6 to 9: 801-supporting plate, 8011-through hole (supporting plate), 8012-second side edge, 802-folded top diaphragm plate, 8021-first side edge, 803-folding mechanism, 8031-folded plate, 8032-folded edge lifting driving mechanism, 80321-front fixing plate, 80322-rear fixing plate, 80323-cylinder movable seat, 80324-cylinder mounting seat, 80325-cylinder (folded edge lifting driving), 80326-first connecting rod, 80327-second connecting rod, 80328-transmission shaft, 804-film pressing mechanism, 8041-film pressing cylinder and 8042-film pressing plate;

fig. 10 to 12; 121-inner membrane pinch support, 1211-left support plate, 1212-right support plate, 1213-front support base, 1214-support plate, 122-bottom plate, 1221-strip through hole, 123-inner membrane pinch mechanism, 1231-pinch plate, 1232-pinch cylinder, 1233-pinch translation base, 1234-pinch support plate, 1235-pinch guide post, 1236-pinch translation mechanism, 12361-front mount, 12362-rear mount, 12363-guide rod (pinch translation), 12364-guide block (pinch translation), 12365-servo motor (pinch translation), 12366-drive wheel (pinch translation), 12367-driven wheel (pinch translation), 12368-synchronous belt (pinch translation), 124-inner membrane pinch mechanism, 1241-pinch plate, 1242-pinch cylinder, 125-inner membrane cutting mechanism, 1251-upper cutter plate, 1252-lower cutter plate, 1253-cutter cylinder, 126-traction guide roller;

fig. 13 to 15: 141-tube positive pressing member, 1411-tube positive support, 14111-bar through hole (on tube positive support) 1412-bar support block, 1413-tube positive bar, 14131-bar pressing sheet, 1414-tube positive bar driving mechanism, 14141-tube positive lifting base, 14142-air cylinder (tube positive lifting mechanism), 14143-spring connector, 14144-tube positive tension spring, 14145-tube positive guide bar, 141451-upper vertical guide surface, 141452-inclined guide surface, 141453-lower vertical guide surface, 14146-tube positive guide wheel, 14147-tube positive guide post, 14148-compression spring, 142-heat sealing member, 1421-heat sealing knife, 1422-heat sealing lifting mechanism, 14221-heat sealing lifting cylinder, 14222-heat sealing lifting base, 14223-heat sealing guide post, 14224-heat sealing guide sleeve, 143-position adjusting mechanism, 1431-horizontal guide rail, 1432-adjusting screw, 1433-operating handle.

Detailed Description

The following further describes the preferred embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 3, a book cover production apparatus includes a frame 1, a base film unwinding mechanism 2, a floating roller set (which is blocked by a folding indentation device 5 and is not indicated in the drawing), a first transverse clamping and conveying mechanism 3, a gluing device 4, a folding indentation device 5, a slitting indentation device 6, a die cutting device 7, a folding device 8, a cutting device 9, a second transverse clamping and conveying mechanism (which is blocked by the cutting device 9 and inner film unwinding, and is not indicated in the drawing), a longitudinal conveying mechanism 10, an inner film unwinding mechanism 11, an inner film clamping and conveying device 12, a double-film pressing mechanism 13, two-tube positive pressure edge heat sealing devices 14 and a discharging conveying mechanism 15; the base film unwinding mechanism 2, the floating roll group, the first transverse clamping mechanism 3, the slitting and creasing device 6, the die cutting device 7, the folding device 8, the folding and film pressing mechanism and the second transverse clamping mechanism are sequentially arranged on the frame 1 from right to left according to the conveying direction of the base film, the base film unwinding mechanism 2, the floating roll group, the first clamping mechanism and the second clamping mechanism jointly form a transverse conveying mechanism for conveying the base film from left to back, a plurality of guide rolls for conveying are arranged between the base film unwinding mechanism 2 and the floating roll group and between the floating roll group and the first clamping mechanism, and the cutting device 9 is arranged at the second transverse clamping mechanism; the longitudinal conveying mechanism 10 is arranged on the rack 1, the starting end of the longitudinal conveying mechanism 10 corresponds to the second transverse clamping and conveying mechanism, and the starting end of the discharging and conveying mechanism 15 corresponds to the tail end of the longitudinal conveying mechanism 10; the inner membrane clamping and conveying device 12, the double-membrane pressing mechanism 13 and the two tube positive pressure side heat sealing devices 14 are arranged on the longitudinal conveying mechanism 10 from back to front according to the conveying direction of the inner membrane, and the two tube positive pressure side heat sealing devices 14 are arranged in a left-right opposite mode.

In this embodiment, as shown in fig. 3, the gluing device 4 and the folding indentation device 5 are disposed between the base film unwinding mechanism 2 and the floating roller set and respectively located at two sides of the base film, so as to fold the base film on the finished book cover along the folding indentation line to form a front seal of the book cover, and the adhesive tape is located at the inner side of the rear sealing edge of the book cover; the gluing device 4 comprises a glue strip wheel 401, a glue groove, a gluing roller 402 and a gluing motor (not shown in the figure), after the glue strip wheel 401 unreels the glue strip, the gluing motor drives the gluing roller 402 to glue the glue strip, and then the glue strip is attached to the inner side of the rear edge of the base film; the base film unreeling mechanism 2 and the inner film unreeling mechanism 11 adopt servo motors to drive unreeling rollers to unreel, the first transverse pinch mechanism 3 and the second transverse pinch mechanism adopt stepping motors to drive two pinch rollers to pinch, the longitudinal conveying mechanism 10 and the discharge conveying mechanism 15 usually adopt servo motors to drive synchronous belt pulleys to carry out stepping conveying, and the double-film pressing mechanism 13 adopts a cylinder to drive a pressing wheel or a pressing rod to descend to press films; all the above-mentioned means are conventional in the art, and detailed description thereof is omitted here.

As shown in fig. 4 and 5, the slitting and creasing device 6 includes a rolling fixing seat 601, a base film pressing plate 602, a slitting and creasing lifting mechanism 603 capable of driving the base film pressing plate 602 to lift, two rolling and stretching sheets 604, a rolling wheel 605, an adjusting cylinder 606, a translation seat 607, and a slitting and creasing translation mechanism 608 capable of driving the translation seat 607 to translate left and right, the rolling fixing seat 601 is mounted on the frame 1, the rolling and stretching sheets 604 are disposed on the top surface of the rolling fixing seat 601, the two rolling and stretching sheets 604 are sequentially disposed on the top surface of the rolling fixing seat 601 in the left-right direction and are matched with the rolling wheel 605, and the rolling and stretching sheets 604 are in a strip shape and extend in the front-back direction; the base film pressing plate 602 is arranged right above the rolling fixed seat 601, the base film pressing plate 602 is provided with a strip-shaped through hole 6021 extending along the left-right direction, and the strip-shaped through hole 6021 corresponds to the rolling stretching sheet 604; the cylinder body of the adjusting cylinder 606 is installed on the translation seat 607 with the piston rod facing downward, the rolling wheel 605 is rotatably installed on the piston rod of the adjusting cylinder 606 with the axis thereof moving forward and backward, the rolling wheel 605 is located in the strip-shaped through hole 6021 and is engaged with the rolling and stretching sheet 604, in this embodiment, the rolling wheel 605 is a ball bearing, the inner ring of the ball bearing is fixedly installed on the piston rod of the adjusting cylinder 606, and the outer ring surface of the ball bearing forms the wheel surface of the rolling wheel 605 and is engaged with the rolling and stretching sheet 604.

In this embodiment, the slitting indentation lifting mechanism 603 includes a lifting cylinder 6031, a lifting base 6032, a plurality of guide posts 6033 and a plurality of guide sleeves 6034, the lifting base 6032 is disposed below the base film pressing plate 602, each guide post 6033 is disposed between the base film pressing plate 602 and the lifting base 6032, the upper end of each guide post 6033 is connected to the base film pressing plate 602, and the lower end of each guide post 6033 is connected to the lifting base 6032; each guide sleeve 6034 is arranged on the frame 1 and is respectively sleeved on the corresponding guide column 6033; the cylinder body of the lifting cylinder 6031 is arranged on the frame 1, and the piston rod of the lifting cylinder 6031 faces upwards and is connected with the lifting seat 6032. During operation, the flexible drive lift seat 6032 of piston rod of accessible lift cylinder 6031 rises or descends, and the rethread guide post 6033 drives the certain height that rises or descends of base film pressure strip 602 to through the cooperation between each guide post 6033 and each uide bushing 6034, make lift seat 6032 and the lift of base film pressure strip 602 more steady.

In this embodiment, the slitting and creasing translation mechanism 608 includes a horizontal rail 6081, a translation motor 6082, a driving pulley (not shown in the figure), a driven pulley 6083 and an annular synchronous belt 6084, the horizontal rail 6081 is installed on the frame 1 and arranged in the left-right direction, and the translation seat 607 is installed on the horizontal rail 6081 and is in sliding fit with the horizontal rail 6081; the translation motor 6082 is installed on the rack 1, the driving pulley and the driven pulley 6083 are rotatably installed on the rack 1, the driving pulley is in transmission connection with an output shaft of the translation motor 6082, the driving pulley and the driven pulley 6083 jointly tension the annular synchronous belt 6084, the annular synchronous belt 6084 is provided with two straight-line sections 60841 running from left to right, and the straight-line section 60841 is connected with the translation seat 607. During operation, the driving pulley can be driven by the translation motor 6082 to rotate in forward or reverse direction, and the translation seat 607 and the rolling wheel 605 are driven by a straight line segment 60841 of the annular synchronous belt 6084 to translate a certain distance leftwards or rightwards along the horizontal guide rail 6081.

When the device works, the base film waiting for indentation moves step by step from right to left under the drive of the second transverse clamping and conveying mechanism and passes between the rolling fixed seat 601 and the base film pressing plate 602; when the position of the surface of the base film, where a crease line needs to be formed, reaches between the rolling stretching sheet 604 and the rolling wheel 605, the base film stops moving, the slitting indentation lifting mechanism 603 drives the base film pressing plate 602 to descend, the base film is pressed on the rolling fixing seat 601 through the base film pressing plate 602, the slitting indentation translation mechanism 608 drives the translation seat 607 to translate left or right, the wheel surface of the rolling wheel 605 and the rolling stretching sheet 604 are pressed together (the height position of the rolling wheel 605 can be adjusted through adjusting the air cylinder 606, so that the size of the gap between the rolling wheel 605 and the rolling stretching sheet 604 is adjusted to adapt to indentation of base films with different thicknesses, and the pressure of the rolling wheel 605 on the base film can be conveniently adjusted), the rolling wheel 605 is driven to roll from one end to the other end of the rolling stretching sheet 604 in a passive mode (the rolling wheel 605 can also move back and forth between the two ends of the rolling stretching sheet 604 once), and the position of the surface of the base film corresponding to the strip-shaped through hole 6021 is indented to form a crease line with left and right trend; subsequently, the slitting indentation lifting mechanism 603 drives the base film pressing plate 602 to ascend and reset, the base film on the rolling fixed seat 601 is loosened, the base film is driven by the traction mechanism to continuously move backwards, and the next position on the surface of the base film, where a crease line needs to be formed, is moved to a position between the rolling stretching sheet 604 and the rolling wheel 605; so reciprocal, this kind of divide and cut indentation device 6 can carry out the indentation automatically to the base film surface in order to form and cut the indentation line, cuts the indentation line and both had carried out the line of cutting that books cover was cut as follow-up cutting device 9, still can effectively prevent to cause the damage to the base film, and the indentation is effectual.

As shown in fig. 6 to 9, the folding device 8 includes a support plate 801, a folding top film plate 802, a folding mechanism 803, and a film pressing mechanism 804; the supporting plate 801 is horizontally arranged on the machine frame 1, the edge folding top film plate 802 is horizontally attached to the supporting plate 801, a gap (not marked in the figure) through which a base film can pass is formed between the edge folding top film plate 802 and the supporting plate 801, and the edge folding top film plate 802 is provided with a first side edge 8021 consistent with the conveying direction of the base film; a through hole 8011 is arranged on the left side of the edge-folding top membrane plate 802 on the supporting plate 801, and a second side edge 8012 corresponding to the first side edge 8021 up and down is arranged on the through hole 8011.

As shown in fig. 6 to 9, the folding mechanism 803 includes a folding plate 8031 and a folding lifting driving mechanism 8032 capable of driving the folding plate 8031 to lift and move above the folding top film plate 802, the folding plate 8031 is mounted on a power output end of the folding lifting driving mechanism 8032 and is located in the through hole 8011, the folding plate 8031 is matched with the through hole 8011 in shape, an upper surface of the folding plate 8031 is flush with a surface of the supporting plate 801, and an inclined surface 80311 is provided between an edge of the upper surface of the folding plate 8031 corresponding to the second side edge 8012 and a lower surface of the folding plate 8031; the hem lifting driving mechanism 8032 comprises a front fixing plate 80321, a rear fixing plate 80322, a cylinder movable seat 80323, a cylinder mounting seat 80324, a cylinder 80325, two first connecting rods 80326, two second connecting rods 80327 and a transmission shaft 80328; the front fixing plate 80321 and the rear fixing plate 80322 are opposite to each other front and back below the supporting plate 801, the cylinder mounting seat 80324 is arranged on the right side of the front fixing plate 80321 and the rear fixing plate 80322, the cylinder movable seat 80323 is hinged on the cylinder mounting seat 80324, and the cylinder body of the cylinder 80325 is arranged on the cylinder movable seat 80323 in the left-right direction; the piston rod of the cylinder 80325 is hinged with the middle part of the transmission shaft 80328, the front end and the rear end of the transmission shaft 80328 are respectively and correspondingly fixedly connected with the lower ends of the two first connecting rods 80326, the middle parts of the two first connecting rods 80326 are respectively and correspondingly rotatably connected with the front fixing plate 80321 and the rear fixing plate 80322, and the upper ends of the two first connecting rods 80326 are hinged with the lower surface of the folded edge plate 8031; the two second connecting rods 80327 are respectively and correspondingly arranged on the left sides of the two first connecting rods 80326, the lower ends of the two second connecting rods 80327 are respectively and correspondingly rotatably connected with the front fixing plate 80321 and the rear fixing plate 80322, and the upper ends of the two second connecting rods 80327 are hinged with the lower surface of the folded edge plate 8031.

Before the base film is sent to the folding top film plate 802, the folding creasing device presses a folding creasing line on the base film along the length direction of the base film, the first side edge 8021 of the folding top film plate 802 corresponds to the position of the folding creasing line, and the folding creasing line is used as a folding line for folding the base film. When the base film is fed to the hem top plate 802, the base film is in the gap between the hem top plate 802 and the support plate 801, and the fold crease line of the base film is completely aligned with the first side 8021 of the hem top plate 802, and the portion of the base film to be folded is on the hem plate 8031. When the folding is performed, the cylinder 80325 pushes the transmission shaft 80328 to swing downwards, the cylinder body swings downwards at the same time, the lower ends of the two first connecting rods 80326 correspondingly move downwards, and the middle part of the first connecting rod 80326 is rotatably connected to the support, so that the upper end of the first connecting rod 80326 moves upwards, the folding plate 8031 rises, the folding plate 8031 pushes against the base film to turn upwards, and meanwhile, the two second connecting rods 80327 also rotate upwards under the driving of the folding plate 8031; with the pushing of the cylinder 80325, the lower end of the first link 80326 descends to the lowest point along with the transmission shaft 80328 and ascends, at this time, the folding plate 8031 passes through the highest point and then descends to the upper side of the folding top film plate 802, the folding part of the base film is pushed to be turned upwards along the pressing line, and finally the base film is turned over on the folding top film plate 802, so that the base film is turned over under the pushing of the folding plate 8031; and the base film on the other side of the folding crease line is limited in the vertical direction by the folding top film plate 802 because of being in the gap, and cannot be influenced by the movement of the folding plate 8031.

As shown in fig. 6 to 9, the film pressing mechanism 804 is disposed at the rear side of the hem top film plate 802, the film pressing mechanism 804 includes a film pressing cylinder 8041 and a film pressing plate 8042, the cylinder body of the film pressing cylinder 8041 is disposed downward, and the upper surface of the film pressing plate 8042 is connected to the piston rod of the film pressing cylinder 8041. After the base film is turned over, the film pressing mechanism 804 is adopted to press the base film, so that the base film turned over part can be more attached, and the corners of the turned over part are prevented from being upwarped.

As shown in fig. 10 to 12, the inner film clamping device 12 includes an inner film clamping bracket 121, a bottom plate 122, an inner film clamping mechanism 123, an inner film pressing mechanism 124, an inner film cutting mechanism 125, and two drawing guide rollers 126; the inner membrane pinch bracket 121 comprises a left support plate 1211, a right support plate 1212, a front support seat 1213 and four support sheets 1214, wherein the left support plate 1211 and the right support plate 1212 are oppositely arranged left and right, the front support seat 1213 is horizontally arranged, two sides of the front support seat 1213 are respectively and correspondingly arranged on the left support plate 1211 and the right support plate 1212, and the four support sheets 1214 are uniformly arranged at the outer sides of the left support plate 1211 and the right support plate 1212; the traction guide roller 126, the bottom plate 122, the inner film pressing mechanism 124 and the inner film cutting mechanism 125 are sequentially arranged between the left support plate 1211 and the right support plate 1212 according to the conveying direction of the inner film, two side edges of the bottom plate 122 and two ends of the two traction guide rollers 126 are correspondingly arranged on the left support plate 1211 and the right support plate 1212, and the bottom plate 122 is provided with a plurality of strip-shaped through holes 1221 along the conveying direction of the inner film; the inner membrane pressing mechanism 124 and the inner membrane cutting mechanism 125 are both arranged on the front support seat 1213; the inner membrane pressing mechanism 124 comprises a pressing plate 1241 and at least one pressing cylinder 1242, the pressing cylinder 1242 is mounted on the front support base 1213 with the cylinder body facing downwards, and the upper surface of the pressing plate 1241 is connected with the piston rod of the pressing cylinder 1242; the inner film cutting mechanism 125 comprises an upper cutter plate 1251, a lower cutter plate 1252 and two cutter cylinders 1253, wherein the two cutter cylinders 1253 are oppositely arranged on the front supporting seat 1213, the cylinder bodies face downwards, and the upper side edges of the upper cutter plate 1251 and the lower cutter plate 1252 are connected with the piston rods of the cutter cylinders 1253.

As shown in fig. 10 to 12, the inner membrane clamping mechanism 123 is disposed between the left support plate 1211 and the right support plate 1212 and above the bottom plate 122, and the inner membrane clamping mechanism 123 includes a clamping plate 1231, a clamping driving device, a clamping translation seat 1233, a clamping support plate 1234, a plurality of clamping guide posts 1235, and a clamping translation mechanism 1236; the pinch translation mechanism 1236 comprises a front mounting base 12361, a rear mounting base 12362, two guide rods 12363, a guide block 12364, a servo motor 12365, a driving wheel 12366, a driven wheel 12367 and a synchronous belt 12368, wherein the left and right ends of the front mounting base 12361 and the rear mounting base 12362 are respectively mounted on the left support plate 1211 and the right support plate 1212, the guide rods 12363 are arranged in the front and rear directions, the front and rear ends of the guide rods 12363 are respectively mounted on the front mounting base 12361 and the rear mounting base 12362, the servo motor 12365 and the driving wheel 12366 are both arranged on the front mounting base 12361, the output shaft of the servo motor 12365 is in transmission connection with the driving wheel 12366, the driven wheel 12367 is arranged on the rear mounting base 12362, the synchronous belt 12368 is sleeved on the driving wheel 12366 and the driven wheel 12367, the pinch translation base 1233 is movably mounted on the guide rods 12363 and is connected with the guide block 12368 through the guide block 12364, the upper ends of the pinch translation base 1233 of the multiple pinch guide rods 1235 are mounted on the pinch translation base 1233, and the lower ends of the synchronous belt 1225 pass through corresponding strip-shaped through holes 1 to the bottom plate 1234 and are connected to the upper surface of the pinch surface of the strip-shaped support plate 1234; the clamping driving device comprises two clamping cylinders 1232, the two clamping cylinders 1232 are both mounted on the clamping translation seat 1233 and located on two sides of the guide block 12364, two ends of the upper surface of the clamping plate 1231 are respectively connected with piston rods of the corresponding clamping cylinders 1232, the lower surface of the clamping plate 1231 is opposite to the upper surface of the bottom plate, and the clamping plate 1231 can move up and down along the clamping guide post 1235.

The inner film is drawn by the drawing guide roller 126 and sent to the bottom plate 122, after entering the bottom plate 122, the pinch air cylinder 1232 drives the pinch plate 1231 to press down, then the servo motor 12365 drives the synchronous belt 12368 to rotate, so that the pinch translation seat 1233 moves along the guide rod 12363, the inner film moves to the inner film pressing mechanism 124 and the inner film cutting mechanism 125 under the pinch action of the pinch plate 1231, and the pinch distance of the pinch translation mechanism 1236 corresponds to the size of the inner film; then, a pressing cylinder 1242 drives a pressing plate 1241 to further press the inner film, and a cutting cylinder drives an upper cutter plate 1251 and a lower cutter plate 1252 to cut the pressed inner film; when the pressing plate 1241 presses the inner film and the base film, the clamping and conveying cylinder 1232 drives the clamping and conveying plate 1231 to ascend, the inner film is loosened, and then the synchronous belt 12368 is driven to reset the clamping and conveying translation seat 1233 so as to carry out the next clamping and conveying operation. Static electricity does not need to be applied to the inner side surface of the inner film in the whole conveying process, and even if the cut inner film is staggered when covering the base film, correction can be carried out in the subsequent working procedures; and the books cover that cuts out is no longer subsidiary static by oneself, and follow-up also need not carry out destatic operation yet, reduces production processes, need not to adopt destatic equipment, when carrying out the pile up packing of finished product books cover, also can not adsorb each other because of static between the books cover simultaneously.

As shown in fig. 1 and 13, the tube positive pressure edge heat-seal device 14 includes a tube positive pressure assembly 141, a heat-seal assembly 142, and a position adjustment mechanism 143; the positive pipe pressing component 141 comprises a positive pipe supporting seat 1411, a strip-shaped supporting block 1412, a positive pipe strip 1413 and a positive pipe strip driving mechanism 1414 capable of driving the positive pipe strip 1413 to perform left-right translation and lifting actions, the positive pipe strip driving mechanism 1414 is installed on the positive pipe supporting seat 1411, the strip-shaped supporting block 1412 is arranged on the positive pipe supporting seat 1411 and moves forwards and backwards, the positive pipe strip 1413 is arranged in the front-back direction and positioned on the outer side of the strip-shaped supporting block 1412, a strip-shaped pressing sheet 14131 extending in the front-back direction is arranged on the upper portion of the inner side surface of the positive pipe strip 1413, and the strip-shaped pressing sheet 14131 is positioned on the upper side of the strip-shaped supporting block 1412 and matched with the strip-shaped supporting block 1412; the heat seal assembly 142 corresponds to the positive tube pressure assembly 141, the heat seal assembly 142 includes a heat seal knife 1421 and a heat seal lifting mechanism 1422 capable of driving the heat seal knife 1421 to lift, the heat seal lifting mechanism 1422 is mounted on the frame 1, and the heat seal knife 1421 is located above the strip-shaped support block 1412 and inside the positive tube strip 1413. In this embodiment, the heat-sealing lifting mechanism 1422 includes a heat-sealing lifting cylinder 14221, a heat-sealing lifting seat 14222, a plurality of heat-sealing guide posts 14223, and a plurality of heat-sealing guide sleeves 14224, the cylinder body of the heat-sealing lifting cylinder 14221 is installed on the frame 1, and the piston rod of the heat-sealing lifting cylinder 14221 faces downward and is connected to the heat-sealing lifting seat 14222; each heat-seal guide column 14223 is mounted on the heat-seal lifting seat 14222, and each heat-seal guide sleeve 14224 is mounted on the machine base 1 and is respectively sleeved on the corresponding heat-seal guide column 14223; the heat seal knife 1421 is mounted on the heat seal lifter 14222. During operation, the piston rod of the heat-sealing lifting cylinder 14221 extends and retracts to drive the heat-sealing lifting seat 14222 and the heat-sealing knife 1421 to ascend or descend by a certain height, and the heat-sealing lifting seat 14222 and the heat-sealing knife 1421 can ascend and descend more stably through the sliding fit between each heat-sealing guide column 14223 and each heat-sealing guide sleeve 14224.

As shown in fig. 14 and 15, the tube positive bar driving mechanism 1414 includes a tube positive lifting seat 14141, a tube positive lifting mechanism 14142 capable of driving the tube positive lifting seat 14141 to lift, a spring connector 14143, a tube positive tension spring 14144, at least one tube positive guide bar 14145, at least one tube positive guide wheel 14146 and at least two tube positive guide columns 14147, wherein the tube positive lifting mechanism 14142 is installed on the tube positive support 1411, in this embodiment, the tube positive lifting mechanism 14142 employs an air cylinder, a cylinder body of the air cylinder 14142 is installed on the machine base 1, a piston rod of the air cylinder 14142 faces upward and is connected with the tube positive lifting seat 14141, and the piston rod of the air cylinder 14142 extends and retracts to drive the tube positive lifting seat 14141 to ascend or descend by a certain height; the spring connector 14143 is mounted on the tube positive strip 1413, the tube positive tension spring 14144 is arranged between the strip-shaped supporting block 1412 and the spring connector 14143, the inner end of the tube positive tension spring 14144 is connected with the strip-shaped supporting block 1412, and the outer end of the tube positive tension spring 14144 is connected with the spring connector 14143; the tube positive guide strip 14145 is mounted on the tube positive strip 1413, the inner side surface of the tube positive guide strip 14145 is provided with an upper vertical guide surface 141451, an inclined guide surface 141452 and a lower vertical guide surface 141453 which are sequentially connected from top to bottom, the lower vertical guide surface 141453 is positioned on the inner side of the upper vertical guide surface 141451, and the inclined guide surface 141452 is gradually inclined to the outside from the upper end to the lower end thereof; a blocking block (not shown in the figure) is arranged at the lower part of the tube positive guide strip 14145 and is positioned right below the tube positive lifting seat 14141; the tube positive guide wheels 14146 are in the same number and correspond to the tube positive guide strips 14145 one by one, the tube positive guide wheels 14146 are rotatably mounted on the tube positive lifting seat 14141, the axis of each tube positive guide wheel is in the front-back direction, the tube positive guide wheels 14146 are in rolling fit with the inner side faces of the corresponding tube positive guide strips 14145, in the embodiment, the tube positive guide wheels 14146 adopt rolling bearings, the inner rings of the rolling bearings are fixedly mounted on the tube positive lifting seat 14141, and the outer rings of the rolling bearings are in rolling fit with the inner side faces of the tube positive guide strips 14145; each tube positive guide column 14147 is installed on a tube positive strip 1413, at least two strip-shaped through holes 14111 extending in the left-right direction are formed in the tube positive support base 1411, the number of the strip-shaped through holes 14111 is the same as that of the tube positive guide columns 14147, the strip-shaped through holes 14111 correspond to the tube positive guide columns 14147 one by one, and each tube positive guide column 14147 is located in the corresponding strip-shaped through hole 14111; each tube positive guide column 14147 is sleeved with a compression spring 14148, the compression spring 14148 is positioned between the tube positive strip 1413 and the tube positive support base 1411, the upper end of the compression spring 14148 is tightly contacted with the tube positive strip 1413, and the lower end of the compression spring 14148 is tightly contacted with the tube positive support base 1411. In the embodiment, the spring connecting piece 14143 is installed on the middle part of the positive pipe strip 1413, the number of the positive pipe guide strips 14145 and the positive pipe guide pillars 14147 is two, the upper ends of the two positive pipe guide strips 14145 are both installed on the positive pipe strip 1413 and are symmetrically arranged relative to the spring connecting piece 14143, and the upper ends of the two positive pipe guide pillars 14147 are both installed on the positive pipe strip 1413 and are symmetrically arranged relative to the spring connecting piece 14143. By adopting the structure, the acting force applied to the whole pipe positive strip 1413 is uniform, and the lifting and translation motion of the pipe positive strip 1413 is more stable.

As shown in fig. 13 to 15, the position adjusting mechanism 143 corresponds to the tube front supporting seat 1411 of the tube positive compression assembly 141, the position adjusting mechanism 143 includes a horizontal guide 1431, an adjusting screw 1432 and an operating handle 1433, the horizontal guide 1431 is installed on the machine base 1 and is oriented left and right, the adjusting screw 1432 is rotatably installed on the machine base 1 and is parallel to the horizontal guide 1431, the operating handle 1433 is installed at one end of the adjusting screw 1432, the tube front supporting seat 1411 is installed on the horizontal guide 1431 and is slidably engaged with the horizontal guide 1431, and the tube front supporting seat 1411 is provided with a screw hole engaged with the adjusting screw 1432. By adopting the structure, the positions of the tube positive supporting seats 1411 of the corresponding tube positive pressing assembly 141 in the left-right direction can be respectively adjusted through the two position adjusting mechanisms 143, so that the distance between the two tube positive strips 1413 can be adjusted, and the tube positive pressing assembly is suitable for performing tube positive pressing on membrane materials with different widths; during adjustment, the adjusting screw 1432 can be rotated by operating the handle 1433 to drive the tube front supporting seat 1411 of the tube front pressing assembly 141 to translate a certain distance leftwards or rightwards along the horizontal guide rail 1431.

In an initial state, the distance between the two tube front strips 1413 is slightly larger than the overlapping width of the base film and the inner film, a gap is reserved between the strip-shaped pressing piece 14131 on the tube front strip 1413 and the corresponding strip-shaped supporting block 1412, and the tube front guide wheel 14146 is in contact fit with the upper vertical guide surface 141451 of the tube front guide strip 14145. In operation, the longitudinal conveying mechanism 10 stably and synchronously conveys the book cover which is not subjected to tube positive heat sealing to the lower part of the two heat sealing assemblies 142, and the two sides of the base film and the inner film are respectively positioned in the gap between the strip-shaped supporting block 1412 and the strip-shaped pressing sheet 14131 of the corresponding tube positive pressure assembly 141; when the positions of the two sides of the book cover needing heat sealing reach the positions right below the two heat sealing assemblies 142, the book cover is temporarily stopped by the longitudinal conveying mechanism 10; then, the two positive tube pressing assemblies 141 act simultaneously, the positive tube lifting mechanism 14142 of the positive tube strip 1413 driving mechanism drives the positive tube lifting seat 14141 to descend, drives the positive tube guide wheel 14146 to roll along the inner side surface of the positive tube guide strip 14145 from top to bottom (at this time, the positive tube guide wheel 14146 rolls from the upper vertical guide surface 141451 to the lower vertical guide surface 141453 through the inclined guide surface 141452), because the inner side surface of the positive tube guide strip 14145 abuts against the corresponding positive tube guide wheel 14146 under the action of the positive tube tension spring 14144, the positive tube strip 1413 translates toward the longitudinal conveying mechanism 10 when the positive tube guide wheel 14146 rolls along the inclined guide surface 141452, and the positive tube lifting seat 14141 drives the positive tube guide strip 14145 and the positive tube strip 1413 to descend (at this time, the compression spring 14148 is in a compressed state) after contacting with the blocking block of the positive tube guide strip 14145 located below the positive tube guide strip 14145, so that the positive tube guide strip 14141 and the positive tube strip 14141 on the longitudinal conveying mechanism 10 simultaneously translate, jointly press the positive tube pressing positions of the positive tube strip 14141 and the corresponding positive tube strip in the process of the positive tube lifting seat 14131 to descend, thereby pressing the corresponding positive tube strip of the base film strip and the base film strip in the process of the positive tube guiding strip 14141; subsequently, the heat seal lifting mechanisms 1422 in the two heat seal assemblies 142 drive the corresponding heat seal knives 1421 to descend, so as to cooperate with the corresponding strip-shaped supporting blocks 1412, thereby completing the heat seal process of the book cover.

In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and the equivalent or simple change of the structure, the characteristics and the principle described in the present patent idea is included in the protection scope of the present patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A book cover production device comprises a rack, a base film unreeling mechanism, a floating roll set, a first transverse clamping and conveying mechanism, a gluing device, a folding and impressing device, a die cutting device, a second transverse clamping and conveying mechanism, an inner film unreeling mechanism, a longitudinal conveying mechanism and a discharging and conveying mechanism; the base film unwinding mechanism, the floating roller set, the first transverse clamping mechanism and the second transverse clamping mechanism are sequentially arranged on the rack from right to left, the longitudinal conveying mechanism is arranged on the rack, the starting end of the longitudinal conveying mechanism corresponds to the second transverse clamping mechanism, the gluing device and the folding and creasing device are arranged between the base film unwinding mechanism and the floating roller set, the cutting device is arranged at the second transverse clamping mechanism, the inner film unwinding mechanism is arranged above the longitudinal conveying mechanism, and the starting end of the discharging and conveying mechanism corresponds to the tail end of the longitudinal conveying mechanism; the method is characterized in that: the book cover production equipment also comprises a slitting and impressing device, a turnover device, an inner film clamping and conveying device, a double-film pressing mechanism and two pipe positive pressure edge heat sealing devices; the slitting and creasing device, the die cutting device and the folding device are arranged between the first transverse clamping and conveying mechanism and the second transverse clamping and conveying mechanism from right to left; the inner membrane clamping and conveying device, the double-membrane pressing mechanism and the two pipe positive pressure side heat sealing devices are arranged on the longitudinal conveying mechanism from back to front, and the two pipe positive pressure side heat sealing devices are oppositely arranged left and right; the inner film clamping and conveying device comprises an inner film clamping and conveying support, a bottom plate, an inner film clamping and conveying mechanism, an inner film pressing mechanism and an inner film cutting mechanism, wherein the bottom plate, the inner film pressing mechanism and the inner film cutting mechanism are sequentially arranged on the inner film clamping and conveying support according to the conveying direction of the inner film; the inner membrane clamping and conveying mechanism is arranged above the bottom plate and comprises an inner membrane clamping and conveying plate, an inner membrane clamping and conveying support plate, an inner membrane clamping and conveying driving device, an inner membrane clamping and conveying translation seat, an inner membrane clamping and conveying translation mechanism and a plurality of inner membrane clamping and conveying guide columns; the inner film clamping and translating mechanism is arranged on the inner film clamping and translating bracket, the inner film clamping and translating seat is arranged at the power output end of the inner film clamping and translating mechanism, the inner film clamping and driving device is arranged on the inner film clamping and translating seat, the upper surface of the inner film clamping and conveying plate is connected with the power output end of the inner film clamping and translating device, and the lower surface of the inner film clamping and conveying plate is opposite to the upper surface of the bottom plate; a plurality of strip-shaped through holes are formed in the bottom plate along the conveying direction of the inner film, the upper ends of a plurality of inner film clamping and conveying guide pillars are installed on the inner film clamping and conveying translation seat, the lower ends of the inner film clamping and conveying guide pillars penetrate through the corresponding strip-shaped through holes to the lower portion of the bottom plate and are connected to the upper surface of the inner film clamping and conveying support plate, and the inner film clamping and conveying plate can move up and down along the inner film clamping and conveying guide pillars.

2. The book cover production apparatus of claim 1, wherein: the tube positive pressure edge heat sealing device comprises a tube positive pressing component and a heat sealing component; the positive pipe pressing component is arranged on one side of the longitudinal conveying mechanism and comprises a positive pipe supporting seat, a strip-shaped supporting block, a positive pipe strip and a positive pipe strip driving mechanism capable of driving the positive pipe strip to perform front-back translation and lifting actions, the positive pipe strip driving mechanism is arranged on the positive pipe supporting seat, the strip-shaped supporting block is arranged on the positive pipe supporting seat and has a front-back trend, the positive pipe strip is arranged along the front-back direction and is positioned on the outer side of the strip-shaped supporting block, the upper part of the inner side surface of the positive pipe strip is provided with a strip-shaped pressing piece extending along the front-back direction, and the strip-shaped pressing piece is positioned on the upper side of the strip-shaped supporting block and is matched with the strip-shaped supporting block; the heat-seal assembly corresponds to the pipe positive pressure assembly, the heat-seal assembly comprises a heat-seal knife and a heat-seal lifting mechanism capable of driving the heat-seal knife to lift, the heat-seal lifting mechanism is installed on the rack, and the heat-seal knife is located above the strip-shaped supporting block and located on the inner side of the pipe positive strip.

3. The book cover production apparatus according to claim 2, wherein: the tube positive strip driving mechanism comprises a tube positive lifting seat, a tube positive lifting mechanism capable of driving the tube positive lifting seat to lift, a spring connecting piece, a tube positive tension spring, at least one tube positive guide strip, at least one tube positive guide wheel and at least two tube positive guide columns, and the tube positive lifting mechanism is arranged on the tube positive support seat; the spring connecting piece is arranged on the tube positive strip, the tube positive tension spring is arranged between the strip-shaped supporting block and the spring connecting piece, the inner end of the tube positive tension spring is connected with the strip-shaped supporting block, and the outer end of the tube positive tension spring is connected with the spring connecting piece; the tube positive guide strip is arranged on the tube positive strip, the inner side surface of the tube positive guide strip is provided with an upper vertical guide surface, an inclined guide surface and a lower vertical guide surface which are sequentially connected from top to bottom, the lower vertical guide surface is positioned on the inner side of the upper vertical guide surface, and the inclined guide surface is gradually inclined outwards from the upper end to the lower end of the inclined guide surface; the lower part of the tube positive guide strip is provided with a stop block, and the stop block is positioned right below the tube positive lifting seat; the tube positive guide wheels are in one-to-one correspondence with the tube positive guide strips in the same number, the tube positive guide wheels can be rotatably arranged on the tube positive lifting seat, the axes of the tube positive guide wheels are in the front-back trend, and the tube positive guide wheels are in rolling fit with the inner side surfaces of the corresponding tube positive guide strips; each tube positive guide column is arranged on a tube positive strip, at least two strip-shaped through holes extending along the left-right direction are arranged on the tube positive support seat, the number of the strip-shaped through holes is the same as that of the tube positive guide columns, the strip-shaped through holes correspond to the tube positive guide columns one by one, and the tube positive guide columns are respectively positioned in the corresponding strip-shaped through holes; each tube positive guide post is sleeved with a compression spring, the compression spring is positioned between the tube positive strip and the tube positive support seat, the upper end of the compression spring is in close contact with the tube positive strip, and the lower end of the compression spring is in close contact with the tube positive support seat.

4. The book cover production apparatus according to claim 3, wherein: the heat sealing device is characterized in that the heat sealing device also comprises a position adjusting mechanism, the position adjusting mechanism corresponds to the tube positive supporting seat of the tube positive pressing component one by one, the position adjusting mechanism comprises a horizontal guide rail, an adjusting screw rod and an operating handle, the horizontal guide rail is arranged on the rack and moves towards the left and the right, the adjusting screw rod is rotatably arranged on the rack and is parallel to the horizontal guide rail, the operating handle is arranged at one end of the adjusting screw rod, the tube positive supporting seat is arranged on the horizontal guide rail and is in sliding fit with the horizontal guide rail, and a screw hole meshed with the adjusting screw rod is formed in the tube positive supporting seat.

5. The book cover production apparatus according to any one of claims 1 to 4, wherein: the slitting and creasing device comprises a rolling fixed seat, a base film pressing plate, a slitting and creasing lifting mechanism capable of driving the base film pressing plate to lift, at least one rolling and stretching sheet, a rolling wheel, a translation seat and a slitting and creasing translation mechanism capable of driving the translation seat to translate left and right, wherein the rolling fixed seat is arranged on the rack, the rolling and stretching sheet is arranged on the top surface of the rolling fixed seat, and the rolling and stretching sheet is strip-shaped and extends along the front-back direction; the base film pressing plate is arranged right above the rolling fixed seat and provided with strip-shaped through holes extending along the front-back direction, and the strip-shaped through holes correspond to the rolling stretching pieces in position; the rolling wheel is rotatably arranged on the translation seat, the axis of the rolling wheel is in the left-right direction, and the rolling wheel is positioned in the strip-shaped through hole and matched with the rolling stretching sheet.

6. The book cover production apparatus according to any one of claims 1 to 4, wherein: the folding device comprises a supporting plate, a folding top film plate and a folding mechanism, the supporting plate is horizontally arranged on the rack, the folding top film plate is horizontally attached to the supporting plate, a gap through which the base film can pass is formed between the folding top film plate and the supporting plate, and the folding top film plate is provided with a first side edge consistent with the conveying direction of the base film; the folding mechanism comprises a folding plate and a folding lifting driving mechanism capable of driving the folding plate to lift and move to the upper side of the folding top film plate, a through hole is formed in the front side of the first side edge of the folding top film plate on the supporting plate, the folding plate is installed on the power output end of the folding lifting driving mechanism and is located in the through hole, and the folding plate is matched with the through hole in shape.

7. The book cover production apparatus according to claim 6, wherein: the folding lifting driving mechanism comprises a folding mounting bracket, a folding driving cylinder and a first connecting rod; the edge folding mounting bracket is arranged below the supporting plate, the cylinder body of the edge folding driving cylinder is arranged on the edge folding mounting bracket in the front-back direction, and the tail end of the cylinder body of the edge folding driving cylinder is hinged with the edge folding mounting bracket; the lower end of the first connecting rod is hinged with a piston rod of the flanging driving cylinder, the middle part of the first connecting rod is rotatably connected with the flanging mounting bracket, and the upper end of the first connecting rod is hinged with the lower surface of the flanging plate.