CN215152390U - Wrapping bag production is with folding mechanism in advance - Google Patents
Wrapping bag production is with folding mechanism in advance Download PDFInfo
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- CN215152390U CN215152390U CN202121152887.8U CN202121152887U CN215152390U CN 215152390 U CN215152390 U CN 215152390U CN 202121152887 U CN202121152887 U CN 202121152887U CN 215152390 U CN215152390 U CN 215152390U
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Abstract
The utility model relates to a wrapping bag production is with folding mechanism in advance, including the A conveying element that the drive expansion board removed along its direction of delivery, carry out the positioning unit who fixes a position the expansion board at the in-process of carrying, the top of A conveying element still is provided with first folding element and second folding element in advance, and first folding element in advance is close to the fourth otic placode and arranges for carry out the folding in advance along first crease with the fourth otic placode, the second folding element in advance is close to the second otic placode and arranges, is used for carrying out the folding in advance along the second crease with the second otic placode. The beneficial effects of the utility model are that can realize carrying out the folding in advance respectively with the fourth otic placode, the second otic placode of expansion plate for form the crease, convenient subsequent folding.
Description
Technical Field
The utility model relates to a processing equipment field of wrapping bag, concretely relates to wrapping bag production is with folding mechanism in advance.
Background
Food packaging bags are typically formed by cutting a finished unfolded sheet, folding the sheet in a step-wise fashion, and then gluing the folded sheets together to form a package. However, the process of unfolding the unfolding plate is complex, and the actual production process mostly adopts manual folding. The mode that adopts the manual work to fold production efficiency is lower can't satisfy the production demand, consequently needs to provide a wrapping bag folding equipment.
Disclosure of Invention
In order to solve the problem, the utility model provides a wrapping bag production is with folding mechanism in advance.
The technical proposal adopted by the utility model is as follows.
The utility model provides a wrapping bag production is with folding mechanism in advance, including the A conveying unit that the drive expansion plate removed along its direction of delivery, carry the locating element that the in-process of expansion plate advances line location to the expansion plate, the top of A conveying unit still is provided with first folding unit and second folding unit in advance, first folding unit in advance is close to the fourth otic placode and arranges for carry out the folding in advance along first crease with the fourth otic placode, the second folding unit in advance is close to the second otic placode and arranges for carry out the folding in advance along the second crease with the second otic placode.
Preferably, the A conveying unit comprises a belt conveying line, the belt conveying line is used for supporting and supporting the bottom of the expansion plate and conveying the expansion plate, a pair roller set forming a pair roller with the belt conveying line is further arranged on the belt conveying line, the pair roller set is arranged at the right part of the expansion plate, a pair roller opening is formed in the distance between the pair roller set and the belt conveying line, and the expansion plate is conveyed through the right part of the pair roller expansion plate by the pair roller opening.
Preferably, the positioning unit comprises a folding positioning plate which is vertically arranged, the vertical arrangement of the folding positioning plate faces the right profile of the expansion plate for positioning, and the folding positioning plate is installed on the rack along the conveying direction of the expansion plate.
Preferably, the second pre-folding unit includes a folding assembly including a front pre-folding portion for guiding the second ear panel from a horizontal state to an inclined state and a rear pre-folding portion for guiding the second ear panel in the inclined state to the horizontal state to pre-fold the second ear panel.
Preferably, preceding pre-folding portion comprises the body of rod, the body of rod includes arranges the anterior body of rod in proper order along direction of delivery, the middle part body of rod and the afterbody body of rod, the anterior body of rod is arranged along direction of delivery below to the inside from the outside of belt transfer line, the afterbody body of rod is arranged along direction of delivery below to the inside from the outside of belt transfer line, the middle part body of rod is used for connecting anterior body of rod and the afterbody body of rod, the body of rod passes through the middle part body of rod overhang and installs in the frame, the minimum interval between the body of rod and the belt transfer line slightly is greater than the thickness of four sides of second and with.
Preferably, the back is folding portion in advance comprises the plate body that the form was arranged immediately, the plate body includes arranges anterior plate body in proper order along direction of delivery, middle part plate body and afterbody plate body, the slope of anterior plate body reduces gradually along direction of delivery, the anterior plate body correspond with the afterbody body of rod and arrange for link up the second otic placode of slope, the slope of afterbody plate body reduces gradually along direction of delivery, the middle part plate body is used for connecting, anterior plate body and the afterbody plate body of transition, the plate body passes through anterior plate body and afterbody plate body overhang and installs in the frame.
Preferably, the first pre-folding unit comprises a front pre-folding portion A and a rear pre-folding portion A, the front pre-folding portion A is used for guiding the first ear plate to be in an inclined state from a horizontal state, the rear pre-folding portion A is used for guiding the first ear plate in the inclined state to be in a horizontal state to pre-fold the first ear plate, the front pre-folding portion A comprises a front rod body A and a rear rod body A, the front rod body A is vertically and downwards arranged, the rear rod body A is obliquely and upwards arranged from the outer side to the inner side of the belt conveying line along the conveying direction, the front rod body A and the rear rod body A are the same rod body, the part of the rear rod body A, which is bent downwards, is the front rod body A, the transition fillet height between the front rod body A and the rear rod body A is lower than the bottom of the expansion plate, the rear pre-folding portion A on the first pre-folding unit is identical in structure to the rear pre-folding portion on the second pre-folding unit, wherein the tail plate body on the first pre-folding unit is located downstream of the tail plate body on the second pre-folding unit.
Preferably, the folding machine further comprises a nip conveying unit for nip-forming creases during pre-folding.
Preferably, the pressing and conveying unit comprises two pressing plates, the pressing plates are arranged corresponding to the first folding marks and the second folding marks respectively, the two pressing plates are mounted on the frame in a suspending mode respectively, a passing opening through which the expansion plate passes is formed by the distance between the two pressing plates and the belt conveying line, the distance between the passing opening is gradually reduced along the conveying direction, and folding openings for folding the fourth ear plate and the second ear plate are formed by the distance between the two pressing plates and the two rear pre-folding portions respectively.
Preferably, a second pair of roller sets forming a pair roller with the belt conveying line is further arranged between the two pressure plates, a pair roller opening is formed at the distance between the second pair of roller sets and the belt conveying line, each second pair of roller set comprises rollers, each roller is installed on the pair roller support in a rolling mode along the length direction of the roller, the rollers are arranged at intervals along the conveying direction, and the pair roller support is movably installed on the rack in the vertical direction.
The utility model has the advantages that: the fourth ear plate and the second ear plate of the unfolding plate can be respectively pre-folded, so that a crease is formed, and subsequent folding is facilitated.
Drawings
FIG. 1 is a schematic flow diagram illustrating the folding of an expansion panel;
fig. 2 is a plan view of the packaging bag folding apparatus of the present embodiment;
FIG. 3 is a top view of the spreader plate feeding mechanism of FIG. 2;
FIG. 4 is a top view of the pre-folding mechanism of FIG. 2;
FIG. 5 is a partial front view of FIG. 4;
FIG. 6 is a top view of the pitch delivery mechanism of FIG. 2;
fig. 7 is a top view of the folding mechanism of fig. 2.
The reference numbers in the figures are: 110-second lug plate, 120-second crease, 130-fourth lug plate, 140-first crease, 150-expansion plate, 200-expansion plate feeding mechanism, 210-chain conveying line, 211-tooling plate, 212-chain, 213-driving element, 220-positioning plate, 230-separation unit, 300-pre-folding mechanism, 310-A conveying unit, 311-belt conveying line, 312-pair roller set, 320-second pre-folding unit, 321-front rod body, 322-middle rod body, 323-tail rod body, 324-front plate body, 325-middle plate body, 326-rear plate body, 330-pressing unit (pressing plate), 340-second pair roller set, 350-folding positioning, 360-first pre-folding unit, 361-A front rod body, 362-A rear rod body, 370-flattening unit, 400-spacing conveying mechanism, 410-spacing guide block, 500-folding mechanism, 510-glue coating roller, 610-pressing roller, 700-stacking mechanism, 710-A1 conveying line and 720-A2 conveying line.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be described in detail with reference to the following embodiments. It is to be understood that the following text is only intended to describe one or several particular embodiments of the invention, and does not strictly limit the scope of the claims specifically claimed.
As shown in fig. 1, a packing bag comprises a first side plate, a second side plate, a third side plate and four side plates, wherein the first side plate is connected with the second side plate, the second side plate is connected with the third side plate, the third side plate is connected with the fourth side plate, the fourth side plate is connected with the first side plate, the first side plate and the third side plate are folded towards the middle part of the second side plate and the fourth side plate through the folding line of the middle part, so that the second side plate and the fourth side plate are close to each other. The first side plate is provided with a rectangular ear plate, the second side plate is provided with a trapezoidal ear plate, the third side plate is provided with a rectangular ear plate, the fourth side plate is provided with a trapezoidal ear plate, and the two trapezoidal ear plates are folded and adhered to form the bottom of the packaging box. When the folding assembly is performed, the second ear panel 110 is folded along the second fold 120, the fourth ear panel 130 is folded along the first fold 140, and the second ear panel 110 and the fourth ear panel 130 are adhered together to form the bottom of the package box.
As shown in fig. 1-2, a package folding apparatus includes a unfolding plate feeding mechanism 200 for feeding a unfolding plate 150 having a desired posture, a pre-folding mechanism 300 for pre-folding a second ear plate 110 of the unfolding plate 150 along a second fold 120 and pre-folding a fourth ear plate 130 along a first fold 140, a folding mechanism 500 for folding the second ear plate 110 of the unfolding plate 150 along the second fold 120 and folding the fourth ear plate 130 along the first fold 140, and an adhesion mechanism for adhering the fourth ear plate 130 and the second ear plate 110 together.
As shown in FIG. 3, the exploding plate feeding mechanism 200 includes a separating unit 230 for separating each exploding plate 150 arranged in a code stack into a single exploding plate 150, a conveying unit 240 for conveying and positioning the separated single exploding plate 150.
The separating unit comprises a flat belt conveying line, the flat belt conveying line comprises a flat belt used for conveying the expansion plates 170, the flat belt is installed on a rack, and a positioning unit used for positioning the outlines of the expansion plates arranged in a stacked mode and an inclined unit used for supporting the bottoms of the expansion plates arranged in the stacked mode to enable the expansion plates and the flat belt to be arranged at included angles are arranged on the rack. The positioning unit comprises a front outline, a left outline and a right outline of the expansion plate, the left outline and the right outline are restrained by the restraint plate, the restraint plate is vertically arranged, the left outline and the right outline of the expansion plate are restrained by the plate surfaces of the left restraint plate and the right restraint plate, the front outline of the expansion plate is restrained by the plate surface of the front restraint plate, the front restraint plate is arranged in a suspension manner, the bottom of the front restraint plate is slightly higher than the thickness of the expansion plate on the flat belt, the left outline and the right outline are oppositely arranged, the front outline and the rear outline are oppositely arranged, and the front outline and the rear outline are perpendicular to the conveying direction. The inclined unit comprises a rear outline restraining plate for restraining the rear outline of the unfolding plate and an inclined plate for supporting the bottom of the rear side of the unfolding plate and enabling the bottom to be obliquely arranged with the flat belt. Preferably, the inclined plate is fixedly installed on the rack, the rear contour constraining plate and the inclined plate are arranged in an included angle mode, the front constraining plate is installed on the roller wheel set, the roller wheel set is installed on the rack in a hanging mode, the roller wheel set comprises rollers, and the upper side and the lower side of the expanding plate are constrained and conveyed through the space between each roller and the flat belt conveying line. After the unfolding plate is obliquely placed on the flat belt, the front part of the unfolding plate is contacted with the flat belt, the flat belt draws the unfolding plate out from the bottom part by means of friction force, and the distance between the front restraint plate and the flat belt only allows the unfolding plate with one thickness to pass through. The structure can separate the expansion plates arranged in a stacking manner into single expansion plates, and automatic feeding of an automatic production line is realized.
As shown in fig. 3, the conveying unit 240 is composed of a chain conveying line 210, a feeding port of the chain conveying line 210 is arranged corresponding to a discharging port of the separating unit, and is used for receiving a single unfolding plate 150, a tool plate 211 for supporting the unfolding plate 150 is arranged on the chain conveying line 210, a driving member 213 for driving the unfolding plate 150 on the tool plate to move, and a positioning plate 220 for positioning left and right profiles of the unfolding plate 150, wherein the left and right profiles are respectively a left profile and a right profile of the unfolding plate 150 along the conveying direction
The chain conveying line 210 comprises two chains 212 arranged at intervals along the length direction of the unfolding plate 150, a tooling plate 211 fixedly arranged on the rack is respectively arranged between the two chains 212 and outside the edge parts of the two chains, and a driving member 213 is further arranged on the chain conveying line 210, and the driving member 213 is arranged on the chain 212 at intervals and used for driving the unfolding plate 150 to move along the conveying direction.
As shown in fig. 4, the pre-folding mechanism 300 includes an a conveying unit for driving the unfolding plate 150 to move along the conveying direction thereof, and a positioning unit for positioning the right profile of the unfolding plate 150, wherein a first pre-folding unit and a second pre-folding unit are further disposed above the a conveying unit, the first and second pre-folding units are disposed oppositely, the first pre-folding unit is disposed near the fourth ear plate 130 for pre-folding the fourth ear plate 130 along the first fold 140, and the second pre-folding unit is disposed near the second ear plate 110 for pre-folding the second ear plate 110 along the second fold 120.
As shown in fig. 4 to 5, the a conveying unit includes a belt conveying line 311, the belt conveying line 311 is used for supporting and conveying the bottom of the expansion plate 150, a pair roller set 312 forming a pair roller with the belt conveying line 311 is further disposed on the belt conveying line 311, the pair roller set 312 is disposed at the right portion of the expansion plate 150, a pair roller opening is formed at a distance between the pair roller set 312 and the belt conveying line 311, and the pair roller opening conveys the expansion plate 150 by driving the right portion of the expansion plate 150. As shown in fig. 5, the pair roller set 312 acts on the exploding plate 150, so that the exploding plate 150 can be smoothly transported by increasing the friction between the exploding plate 150 and the belt conveyor line 311. Of course, the roller set 312 also serves as a guide for the exploding plate 150. The pair roller set 312 includes rollers, which are installed on the pair roller bracket in a rolling manner along the length direction of the rollers, and are arranged at intervals along the conveying direction, and the pair roller bracket is installed on the rack in a hanging manner.
As shown in fig. 3 to 4, the positioning unit includes a folding positioning plate 350, the folding positioning plate 350 is vertically disposed, the vertical disposition of the folding positioning plate 350 positions the right profile of the unfolding plate 150, the folding positioning plate 350 is mounted on the frame along the conveying direction of the unfolding plate 150, and the folding positioning plate 350 is disposed corresponding to the positioning plate 220.
As shown in fig. 4, the second pre-folding unit includes a folding assembly including a front pre-folding portion for guiding the second ear panel 110 from a horizontal state to an inclined state, and a rear pre-folding portion for guiding the second ear panel 110 in the inclined state to the horizontal state to pre-fold the second ear panel 110.
As shown in fig. 4, the front pre-folding portion is composed of rod bodies, the rod bodies include a front rod body 321, a middle rod body 322 and a tail rod body 323, the front rod body 321 is arranged obliquely downwards along the conveying direction from the outer side to the inner side of the belt conveying line 311, the tail rod body 323 is arranged obliquely upwards along the conveying direction from the outer side to the inner side of the belt conveying line 311, the middle rod body 322 is used for connecting the front rod body 321 and the tail rod body 323, the rod bodies are installed on the rack in a hanging mode through the middle rod body 322, and the minimum distance between the rod bodies and the belt conveying line 311 is slightly larger than the sum of the thicknesses of the second plate and the four side plates. The rear pre-fold consists of vertically arranged panels including a front panel 324, a middle panel 325, and a rear panel 326 arranged in sequence along the conveying direction. The slope of the front plate 324 gradually decreases along the conveying direction, the front plate 324 is arranged corresponding to the tail rod 323 and used for connecting the inclined second ear plate 110, the slope of the tail plate gradually decreases along the conveying direction, the middle plate 325 is used for connecting and transitioning the front plate 324 and the tail plate, and the plates are mounted on the rack in an overhanging manner through the front plate 324 and the tail plate 326.
As shown in fig. 4, the first pre-folding unit 360 includes a front pre-folding portion a and a rear pre-folding portion a, the front pre-folding portion a is used for guiding the first ear plate from a horizontal state to an inclined state, the rear pre-folding portion a is used for guiding the first ear plate in the inclined state to the horizontal state to pre-fold the first ear plate, the front pre-folding portion a includes a front rod 361 and a rear rod 362 a, the front rod 361 is vertically arranged downward, the rear rod 362 a is arranged obliquely upward from the outer side to the inner side of the belt conveyor line along the conveying direction, the front rod 361 and the rear rod 362 a are the same rod, the portion of the rear rod 362 a bent downward is the front rod 361 a, the transition fillet height between the front rod 361 and the rear rod 362 a is lower than the bottom of the unfolding plate, the rear pre-folding portion a on the first pre-folding unit has the same structure as the rear pre-folding portion on the second pre-folding unit, the tail plate body on the first pre-folding unit is positioned at the downstream of the tail plate body on the second pre-folding unit, so that the second pre-folding unit and the fourth pre-folding unit are prevented from interfering with each other when being folded at the same time.
As shown in fig. 4, the pre-folding mechanism 300 further includes a pressing unit that presses the material to form the fold in the pre-folding. The pressing unit comprises two pressing plates 330, the pressing plates 330 are respectively arranged corresponding to the first and second creases, the two pressing plates 330 are respectively mounted on the frame in a suspending manner, a passing opening through which the expansion plate 150 passes is formed by the distance between the two pressing plates 330 and the belt conveyor line 311, the distance between the passing openings is gradually reduced along the conveying direction, and the distance between the two pressing plates 330 and the two rear pre-folding portions respectively form folding openings for folding the fourth ear plate 130 and the second ear plate 110.
As shown in fig. 4, a second pair of roller sets 340 forming a pair of rollers with the belt conveying line 311 is further disposed between the two nip plates 330, a pair of roller openings is formed at a distance between the second pair of roller sets 340 and the belt conveying line 311, each roller set 340 includes rollers, each roller is mounted on a roller support in a rolling manner along the length direction of the roller, the rollers are arranged at intervals along the conveying direction, and the roller support is movably mounted on the rack along the vertical direction. The second pair of roller groups 340 acts on the exploding plate 150 to enable smooth transportation of the exploding plate 150 by increasing the friction between the exploding plate 150 and the belt conveyor line 311. Of course, the roller set 312 also serves as a guide for the unfolding plate 150, which facilitates better pre-folding.
As shown in fig. 1 and 4, during the process of conveying the expansion board by the pre-folding mechanism 300, since the second ear plate 110 is folded on the second side plate in advance, it will rebound to a certain angle during the transportation process, so that the second ear plate 110 is gradually guided by the rod body arranged in an overhanging manner. The fourth ear plate 130 and the fourth side plate are located on the same plane, so the fourth ear plate 130 is gradually guided by the downwardly bent rod.
As shown in fig. 4, a flattening unit 370 for flattening the fourth lug plate again is disposed downstream of the first pre-folding unit, the flattening unit 370 is composed of a plate material arranged in a standing manner, and an included angle between the plate material and the flat belt surface on the a conveying unit 310 gradually decreases along the conveying direction. The plate is suspended on the frame. The fourth ear plate is flattened to facilitate subsequent positioning of the expansion plate, and the subsequent folding precision is higher through positioning the left and right contour lines.
As shown in fig. 2 and 6, an interval conveying mechanism 400 for conveying the unfolded plate after being folded in advance at equal intervals is arranged at the downstream of the pre-folding mechanism, the interval conveying mechanism 400 is composed of a chain conveying line, a feeding port of the chain conveying line is arranged corresponding to a discharging port of the pre-folding mechanism and is used for receiving the unfolded plate after being folded in advance, a tooling plate for supporting the unfolded plate is arranged on the chain conveying line, a driving piece for driving the unfolded plate on the tooling plate to move, a positioning plate for positioning the left and right outlines of the unfolded plate, and an interval guide block 410 for guiding the second ear plate after being folded in advance is further included, the length direction of the interval guide block 410 is consistent with the conveying direction, and the upper side of the interval guide block 410 guides the second ear plate. As shown in fig. 2, the distance guide block 410 is disposed corresponding to the pair of roller assemblies 312, the second ear plate springs back after being folded in advance, the bottom of the second ear plate is overlapped on the pair of roller assemblies 312, and the distance guide block 410 is used for receiving the second ear plate.
As shown in fig. 2 and 7, a folding mechanism is disposed downstream of the spacing conveying mechanism, the folding mechanism has the same structure as the pre-folding mechanism, the folding mechanism includes an a conveying unit for driving the unfolding plate to move along the conveying direction, a positioning unit for positioning the right profile of the unfolding plate, a first folding unit and a second folding unit are further disposed above the a conveying unit, the first folding unit and the second folding unit are oppositely disposed, the first folding unit is disposed near the fourth ear plate for folding the fourth ear plate along the first fold, the second folding unit is disposed near the second ear plate for folding the second ear plate along the second fold, a glue applicator roller 510 is disposed between the first folding unit and the second folding unit at the discharge port of the folding mechanism, the glue applicator roller 510 is roll-mounted on the mounting shaft, the mounting shaft is mounted on the frame, when the second ear plate is first folded to be in a horizontal state, glue is adhered by the glue applicator roller 510, the fourth ear panel is then folded to a horizontal position for attachment to the second ear panel. The adhesion mechanism includes a glue roll 510.
As shown in fig. 2 and 7, a pressing mechanism for pressing the first and second creases is arranged at the outlet of the folding mechanism. The pressing mechanism comprises pressing rollers 610, the pressing rollers 610 are arranged on the conveying unit A at intervals along the conveying direction, the length of each pressing roller 610 is consistent with the belt width of the belt, each pressing roller is rotatably installed on the rack along the length direction of the pressing roller, and a pressing opening for pressing a crease is formed between each pressing roller and the conveying unit A.
As shown in fig. 1, the discharge port of the pressing mechanism is provided with a stacking mechanism, the stacking mechanism 500 includes a conveyor line a1 and a conveyor line a2 arranged opposite to each other, the conveyor line a1 and the conveyor line a2 are belt conveyor lines, the conveyor line a1 is located above the conveyor line a2 and the conveyor line a1 is located downstream of the conveyor line a2, a gap between the two conveyor lines forms a pressing opening of the pressing expansion plate, the pressing opening is arranged corresponding to the discharge port of the folding mechanism and is used for receiving the folded expansion plate, and the conveying speed of the conveyor line a1 and the conveyor line a2 is less than the conveying speed of the folding mechanism.
As shown in fig. 1 to 7, the unfolding plate 150 separates the unfolding plate arranged in a yard form into a single unfolding plate 150 by the separation unit 230, and is transported and positioned by the chain conveyor line 210, and then is pre-folded by the pre-folding mechanism 300. The belt conveyor line 311, the second pair of roller sets 340 and the pair of roller sets 312 on the pre-folding mechanism 300 convey the unfolded plate through the pair of rollers, the unfolded plate is positioned through the pair of folding positioning plates 350 in the conveying process, the second ear plate and the fourth ear plate are respectively guided through the second pre-folding unit 320 and the first pre-folding unit 360, the second ear plate and the fourth ear plate are gradually guided to be in an inclined state from the horizontal state, and then pre-folding marks are finally formed through the action of the pressure plate 330. The unfolded sheets are then conveyed at equal intervals by the interval conveying mechanism 400, and then the second ear sheet and the fourth ear sheet are finally adhered together to form the bottom of the packaging bag by the folding mechanism 500 and the glue applicator 510. Then compress tightly the crease of wrapping bag once more through stitching roller 610 for form darker crease, then carry out the pile convenient packing of piling each wrapping bag through pile mechanism 700. The conveying speed of the A1 and A2 conveying lines on the stacking mechanism 700 is lower than that of the folding mechanism, and the speed difference is formed, so that the next packaging bag is continuously inserted into the previous packaging bag to form a stacked shape.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention. The structures, devices, and methods of operation of the present invention, not specifically described and illustrated, are generally practiced by those of ordinary skill in the art without specific recitation or limitation.
Claims (10)
1. The utility model provides a wrapping bag production is with folding mechanism in advance, a delivery element who removes along its direction of delivery including the drive expansion board, carry the locating element that the in-process of expansion board advances line location to the expansion board, a delivery element's top still is provided with first folding element and second folding element in advance, first folding element in advance is close to the fourth otic placode and arranges for carry out the folding in advance along first crease with the fourth otic placode, the second folding element in advance is close to the second otic placode and arranges for carry out the folding in advance along the second crease with the second otic placode.
2. The pre-folding mechanism for the production of the packaging bags as claimed in claim 1, wherein the A conveying unit comprises a belt conveying line, the belt conveying line is used for supporting and conveying the bottom of the unfolding plate, a pair roller set forming a pair roller with the belt conveying line is further arranged on the belt conveying line, the pair roller set is arranged at the right part of the unfolding plate, a pair roller opening is formed at the distance between the pair roller set and the belt conveying line, and the pair roller opening conveys the unfolding plate through the right part of the pair roller unfolding plate.
3. The pre-folding mechanism for the production of the packaging bags as claimed in claim 1, wherein the positioning unit comprises a folding positioning plate which is arranged vertically, the vertical arrangement of the folding positioning plate faces the right profile of the unfolding plate for positioning, and the folding positioning plate is mounted on the frame along the conveying direction of the unfolding plate.
4. The pre-folding mechanism for producing packaging bags according to claim 1, wherein the second pre-folding unit includes a folding assembly including a front pre-folding portion for guiding the second ear plate from a horizontal state to an inclined state and a rear pre-folding portion for guiding the second ear plate in the inclined state to the horizontal state to pre-fold the second ear plate.
5. The pre-folding mechanism for producing the packaging bag according to claim 4, wherein the front pre-folding portion is composed of rod bodies, the rod bodies include a front rod body, a middle rod body and a tail rod body, the front rod body is arranged from the outer side to the inner side of the belt conveying line in sequence along the conveying direction, the tail rod body is arranged from the outer side to the inner side of the belt conveying line in sequence along the conveying direction, the middle rod body is used for connecting the front rod body and the tail rod body, the rod bodies are mounted on the rack in a hanging mode through the middle rod body, and the minimum distance between the rod bodies and the belt conveying line is slightly larger than the sum of the thicknesses of the second four side plates.
6. The pre-folding mechanism for the packaging bag production as claimed in claim 5, wherein the rear pre-folding portion is composed of plate bodies arranged in a standing manner, the plate bodies include a front plate body, a middle plate body and a tail plate body which are sequentially arranged along the conveying direction, the slope of the front plate body is gradually reduced along the conveying direction, the front plate body is arranged corresponding to the tail rod body and used for connecting with a second ear plate which is inclined, the slope of the tail plate body is gradually reduced along the conveying direction, the middle plate body is used for connecting and transitioning the front plate body and the tail plate body, and the plate bodies are installed on the rack in an overhanging manner through the front plate body and the tail plate body.
7. The pre-folding mechanism for producing the packaging bag according to claim 6, wherein the first pre-folding unit comprises a front pre-folding portion A and a rear pre-folding portion A, the front pre-folding portion A is used for guiding the first ear plate to be in an inclined state from a horizontal state, the rear pre-folding portion A is used for guiding the first ear plate in the inclined state to be in a horizontal state to pre-fold the first ear plate, the front pre-folding portion A comprises a front rod body A and a rear rod body A, the front rod body A is vertically arranged downwards, the rear rod body A is obliquely arranged upwards from the outer side to the inner side of the belt conveying line along the conveying direction, the front rod body A and the rear rod body A are the same rod body, the downward bending portion of the rear rod body A is the front rod body A, the transition fillet height between the front rod body A and the rear rod body A is lower than the bottom of the unfolding plate, the rear pre-folding portion A on the first pre-folding unit is the same as the rear pre-folding portion on the second pre-folding unit in structure, wherein the tail plate body on the first pre-folding unit is located downstream of the tail plate body on the second pre-folding unit.
8. The pre-folding mechanism for producing packaging bags according to claim 1, further comprising a nip feed unit for nip-forming a fold during pre-folding.
9. The pre-folding mechanism for producing the packaging bag according to claim 8, wherein the pressing and conveying unit includes two pressing plates, the pressing plates are respectively disposed corresponding to the first and second folding marks, the two pressing plates are respectively mounted on the frame in a cantilevered manner, a gap between the two pressing plates and the belt conveying line forms a passing opening through which the expansion plate passes, the gap between the passing opening gradually decreases along the conveying direction, and a gap between the two pressing plates and the two rear pre-folding portions respectively forms a folding opening for folding the fourth ear plate and the second ear plate.
10. The pre-folding mechanism for producing the packaging bags according to claim 9, wherein a second pair of roller sets forming a pair of rollers with the belt conveying line is further arranged between the two nip plates, a pair of roller openings are formed at intervals between the second pair of roller sets and the belt conveying line, each second pair of roller set comprises rollers, each roller is arranged on a pair of roller support in a rolling mode along the length direction of the roller, the rollers are arranged at intervals along the conveying direction, and the pair of roller supports are movably arranged on the rack in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121152887.8U CN215152390U (en) | 2021-05-27 | 2021-05-27 | Wrapping bag production is with folding mechanism in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121152887.8U CN215152390U (en) | 2021-05-27 | 2021-05-27 | Wrapping bag production is with folding mechanism in advance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215152390U true CN215152390U (en) | 2021-12-14 |
Family
ID=79372433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121152887.8U Active CN215152390U (en) | 2021-05-27 | 2021-05-27 | Wrapping bag production is with folding mechanism in advance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115320178A (en) * | 2022-07-06 | 2022-11-11 | 深圳市海轩威包装有限公司 | Multi-head folding device for forming paper packaging bag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115320178A (en) * | 2022-07-06 | 2022-11-11 | 深圳市海轩威包装有限公司 | Multi-head folding device for forming paper packaging bag |
| CN115320178B (en) * | 2022-07-06 | 2023-08-18 | 深圳市海轩威包装有限公司 | Multi-head folding device for forming paper packaging bags |
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