CN114523728A

CN114523728A - Medical paper-plastic packaging bag production line

Info

Publication number: CN114523728A
Application number: CN202210280052.3A
Authority: CN
Inventors: 李拓托; 龙其成
Original assignee: Anqing Kangmingna Packaging Co ltd
Current assignee: Anqing Kangmingna Packaging Co ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-05-24

Abstract

The invention provides a production line of medical paper-plastic packaging bags, which comprises: the heat-sealing die comprises an upper die plate and a lower die plate, wherein the upper die plate comprises two parallel support rods, a die plate body and a support assembly, the die plate body is connected with the support assembly, and the support assembly is used for driving the die plate body to move relative to the support rods; the unwinding device is arranged on one side of the heat-sealing die and is used for discharging and rectifying deviation of raw materials rolled into a cylindrical shape; and the traction device is arranged on the other side of the heat-sealing die and used for traction of the raw materials on the unwinding device. According to the invention, when the production line is debugged, the position of the upper template relative to the raw material can be adjusted only by driving the template body to move on the support rod through the support component, so that the raw material is positioned right below the upper template, the debugging is convenient and quick, the debugging time is greatly shortened, the production efficiency is improved, and the waste of the raw material is greatly reduced.

Description

Medical paper-plastic packaging bag production line

Technical Field

The invention relates to the technical field of medical paper-plastic packaging bag production, in particular to a production line of medical paper-plastic packaging bags.

Background

The medical paper-plastic packaging bag is also called a sterilization packaging bag or a disinfection packaging bag. Is mainly used for sterilizing and packaging medical consumables such as masks, hemostatic forceps and the like. The packaging bag is formed by heat-sealing an upper medical dialyzing paper, a lower medical dialyzing paper and a medical composite film through a heat-sealing die.

In the prior art, when a medical paper-plastic packaging bag is produced, a raw material which is rolled into a cylindrical shape is usually sleeved on an unwinding device at one end of a production line, then a traction device is arranged at the other end of the production line, and a heat-sealing mold is positioned between the unwinding device and the traction device. The traction device is used for drawing one end of the raw materials, driving the unwinding device to rotate for discharging and enabling the raw materials to pass through the heat-sealing die in the advancing process. When the medical paper-plastic packaging bag is produced for the first time, a production line needs to be debugged so that the heat-sealing mold is positioned right above the raw materials.

In the prior art, the position of the heat-sealing die is usually not easy to adjust or even cannot be adjusted, so that the position of the raw material on the unwinding device relative to the whole production line is usually adjusted to change the advancing path of the raw material, so that the raw material passes through the position right below the heat-sealing die. However, although the method can achieve the purpose of debugging, the raw material needs to be continuously pulled by the pulling device in the debugging process, and the part of the raw material pulled out in the debugging stage is finally discarded, so that the raw material is greatly wasted.

Therefore, a medical paper-plastic packaging bag production line which is convenient and quick to debug and can greatly reduce waste of raw materials is needed.

Disclosure of Invention

The invention mainly aims to provide a medical paper-plastic packaging bag production line which is convenient and quick to debug and can greatly reduce the waste of raw materials.

In order to achieve the purpose, the technical scheme of the invention is realized as follows: a medical paper-plastic packaging bag production line comprises:

the heat-sealing die comprises an upper die plate and a lower die plate, wherein the upper die plate comprises two parallel support rods, a die plate body and a support assembly, the die plate body is connected with the support assembly, and the support assembly is used for driving the die plate body to move relative to the support rods;

the unwinding device is arranged on one side of the heat-sealing die and is used for discharging and rectifying deviation of raw materials rolled into a cylindrical shape;

and the traction device is arranged on the other side of the heat-sealing die and used for traction of the raw materials on the unwinding device.

Further, the top surface of bracing piece is provided with the rack, the supporting component includes the connection block, and the position department of the corresponding rack in both ends of connection block is provided with the first gear with rack looks meshing, rotate on the connection block and wear to be equipped with first pivot, first pivot and the first gear connection at connection block both ends.

Furthermore, a screw hole is formed in the position, corresponding to the first rotating shaft, of the connecting block body, a stop component is screwed in the screw hole, and one end of the stop component can be abutted against the first rotating shaft by rotating the stop component.

Further, the supporting component further comprises at least two studs connected with the template plate body, one ends of the studs are connected with the connecting block body, the connecting block body drives the template plate body to move through the studs, a first spring is arranged between the connecting block body and the template plate body, and the first spring is sleeved on the corresponding studs.

Furthermore, the heat-sealing die also comprises connecting rods arranged at two ends of each supporting rod respectively, and one end of each connecting rod penetrates through the lower template in a sliding manner to be connected with a driving unit positioned below the lower template;

the drive unit comprises two connecting bodies, two drive rods and two drive parts, the two connecting bodies are arranged and are respectively arranged at two ends of the support rod and connected with corresponding connecting rods, two ends of the drive rods are respectively connected with the two connecting bodies to drive the two connecting bodies to synchronously move, and the drive parts are connected with the drive rods to drive the drive rods to move up and down.

Furthermore, the unwinding device comprises two vertical plates arranged on the left and right and an unwinding roller arranged on the two vertical plates, the unwinding roller comprises a first roller body and a second roller body, the second roller body is coaxial with the first roller body and sleeved outside the first roller body, and the second roller body can only rotate relative to the first roller body;

the screw rod penetrates through the first roller body in a spiral mode, two ends of the screw rod penetrate through the first roller body respectively to be connected with the two vertical plates, a driving assembly is arranged on one vertical plate and connected with one end of the screw rod to drive the screw rod to rotate, and a braking component is further arranged on the first roller body to prevent the first roller body from rotating.

Furthermore, the two ends of the unwinding roller are respectively provided with a fixture block, the fixture blocks are clamped on the corresponding vertical plates, one end of the screw rod is rotatably arranged on the fixture blocks, the other end of the screw rod penetrates through the fixture blocks to be detachably connected with the driving assembly, the braking component is a polished rod which is slidably arranged on the first roller body in a penetrating mode, and the two ends of the polished rod are respectively fixed on the fixture blocks at the two ends of the unwinding roller.

Furthermore, the driving assembly comprises a second gear, a third gear engaged with the second gear, and a first motor for driving the third gear to rotate, the second gear is detachably connected with one end of the screw rod and drives the screw rod to rotate, the first motor is fixed on one of the vertical plates, and the third gear is mounted on an output shaft of the first motor.

Furthermore, draw gear includes two curb plates and sets up last carry over pinch rolls and the carry over pinch rolls down between two curb plates, it is located to go up the carry over pinch rolls under, the both ends of going up the carry over pinch rolls slide from top to bottom and set up in corresponding on the curb plate, upward be provided with constant voltage device on the carry over pinch rolls, constant voltage device will invariable pressure top-down exert on going up the carry over pinch rolls.

Further, comprising:

the second motor is arranged at one end of the lower traction roller and is used for driving the lower traction roller to rotate;

rotating member, including installing first bevel gear of carry over pinch rolls one end down, with first bevel gear engaged with second bevel gear, with the first body of rod of second bevel gear connection, slip are worn to establish the second body of rod, the setting in the first body of rod are in the third bevel gear and the setting of second body of rod one end are in go up the fourth bevel gear of carry over pinch rolls one end, the second body of rod is unable relative first body of rod and is rotated, third bevel gear and fourth bevel gear mesh and relative position are unchangeable.

The invention has the beneficial effects that:

according to the invention, when the production line is debugged, the position of the upper template relative to the raw material can be adjusted only by driving the template body to move on the support rod through the support component, so that the raw material is positioned right below the upper template, the debugging is convenient and quick, the debugging time is greatly shortened, the production efficiency is improved, and the waste of the raw material is greatly reduced.

Drawings

In the drawings:

FIG. 1 is a schematic view of the overall structure of a medical paper-plastic packaging bag production line according to the present invention;

FIG. 2 is a front view of a heat sealing mold in the production line of the medical paper-plastic packaging bag according to the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is an enlarged view at B of FIG. 2;

FIG. 5 is a half sectional view showing an exploded view of a unwinding device in the production line of the medical paper-plastic packaging bag according to the present invention;

FIG. 6 is an enlarged view at C of FIG. 5;

FIG. 7 is a half-sectional view of a traction device in the production line of medical paper-plastic packaging bags according to the present invention;

fig. 8 is an enlarged view at D in fig. 7.

Description of reference numerals:

1-a heat-sealing die, 2-an upper die plate, 21-a support rod, 211-a rack, 212-a first chute, 22-a die plate body, 23-a connecting block body, 231-a first gear, 232-a first rotating shaft, 233-a rotating disc, 234-a first sliding block, 24-a stopping part, 25-a stud, 26-a first spring, 27-a connecting rod, 28-a second spring, 3-a lower die plate, 4-a driving unit, 41-a connecting body, 42-a driving rod, 43-a driving part, 5-an unreeling device, 51-a vertical plate, 52-a first roller body, 53-a second roller body, 54-a screw rod, 541-a plug, 55-a braking part, 56-a clamping block, 57-a driving component and 571-a second gear, 5711-jack, 572-third gear, 573-first motor, 6-traction device, 61-side plate, 611-second chute, 612-second slider, 62-upper traction roller, 63-lower traction roller, 64-constant pressure device, 641-telescopic rod, 65-second motor, 66-rotating part, 661-first bevel gear, 662-second bevel gear, 663-first rod, 664-second rod, 665-third bevel gear, 666-fourth bevel gear, 67-first box, 68-second box.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, and it should be understood that the described examples are only a part of the examples of the invention, and not all of the examples. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, "a plurality" means two or more. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the invention.

See fig. 1-8.

A medical paper-plastic packaging bag production line comprises:

heat-seal mould 1, this heat-seal mould 1 include cope match-plate pattern 2 and lower bolster 3, and this cope match-plate pattern 2 includes two parallel bracing pieces 21, at least one template plate body 22 and sets up the supporting component on template plate body 22. The placing direction of the support rods 21 is perpendicular to the incoming direction of raw materials, the support assemblies are arranged on the two support rods 21, the template plate bodies 22 are connected with the support assemblies, and the support assemblies can move along the length direction of the support rods 21 and drive the template plate bodies 22 to move together;

the unwinding device 5 is arranged on one side of the heat-sealing die 1, and raw materials coiled into a cylindrical shape are sleeved on the unwinding device;

and the traction device 6 is arranged on the other side of the heat-seal die 1 and used for drawing one end of the raw material sleeved on the unwinding device 5, drawing and discharging the raw material and enabling the raw material to pass through the heat-seal die 1 in the advancing process.

In a specific implementation, when the production line is debugged, the support assembly moves on the support rod 21 to drive the template plate body 22 to move, so as to adjust the position of the upper template 2 relative to the raw material. Because of lower bolster 3 is a plane usually, when debugging the production line, the skew distance between raw and other materials and the heat-seal mould 1 can not be many usually, and because of lower bolster 3 is a little bigger than cope match-plate pattern 2 usually again, so raw and other materials can not skew out of lower bolster 3 under the general condition, so only need adjust the debugging that the production line can be accomplished to the position of cope match-plate pattern 2, debug convenient and fast, and the waste of raw and other materials that can greatly reduced.

In an embodiment, the top surface of the supporting rod 21 is provided with a rack 211, the supporting assembly includes a connecting block 23, the positions of the two ends of the connecting block 23 corresponding to the racks 211 are provided with first gears 231 engaged with the racks 211, a first rotating shaft 232 is rotatably disposed on the connecting block 23, and the first rotating shaft 232 is connected with the first gears 231 at the two ends of the connecting block 23 for synchronously rotating the first gears 231 at the two ends of the connecting block 23. Design like this, through rack and pinion's meshing, make the both sides of supporting component can be synchronous move on the bracing piece, be difficult for making the supporting component slope, and then ensure that the gesture of template plate body does not produce the slope, guarantee the quality of product.

Preferably, the supporting assembly further comprises a rotating disc 233, and the rotating disc 233 is connected to the first gear 231 or the first rotating shaft 232 and is used for driving the first gear 231 to rotate. Design like this, be convenient for make supporting component remove on the bracing piece, it is comparatively reasonable to design.

In an embodiment, a screw hole is formed in the connecting block 23 at a position corresponding to the first rotating shaft 232, a stop member 24 is screwed in the screw hole, and by rotating the stop member 24, one end of the stop member 24 can be abutted against the first rotating shaft 232 to prevent the first rotating shaft 232 from rotating. By the design, the relative position of the supporting component and the supporting rod can be prevented from changing in a non-debugging stage.

Preferably, one end of the stopper member 24 extends out of the screw hole and is bent to have a grip shape. The design is convenient for the staff to operate the stop component.

Preferably, the bottom of the connecting block 23 is located between the two support rods 21, the first sliding groove 212 is opened at a position corresponding to the connecting block 23 of the two support rods 21, the first sliding groove 212 penetrates through both ends of the support rods 21 in the length direction, and the first sliding block 234 in sliding fit with the first sliding groove 212 is arranged at a position corresponding to the first sliding groove 212 at both sides of the connecting block 23. Design like this, through the cooperation of first spout and first slider, under the condition that does not influence the connection block and remove, the bracing piece can be more convenient drive connection block reciprocate, and the structure is more reasonable. Through the both ends that make first spout run through the length direction of bracing piece, can make installing on the bracing piece that the connection block body can be comparatively convenient.

In one embodiment, the support assembly further includes at least two studs 25 connected to the formwork panel 22, one end of the stud 25 is connected to the connection block 23, and the connection block 23 drives the formwork panel 22 to move through the stud 25. A first spring 26 is arranged between the connecting block 23 and the template plate body 22, and the first spring 26 is sleeved on the corresponding stud 25.

In a specific implementation, when the supporting rod 21 moves downward, the supporting rod 21 drives the connecting block 23 to move downward, the connecting block 23 drives the template plate 22 to move downward, and after the template plate 22 moves in place, along with the continuous downward movement of the supporting rod 21, the first spring 26 is compressed and applies pressure to the template plate 22, and simultaneously absorbs the vibration force generated when the template plate 22 stops. After the heat sealing is completed, the support rod 21 moves upwards to drive the template plate body 22 to reset, and in the process, the first spring 26 extends and resets.

In one embodiment, the heat-sealing mold 1 further includes a connecting rod 27 disposed at each of two ends of each supporting rod 21, and one end of the connecting rod 27 is slidably connected to the driving unit 4 located below the lower mold plate 3 through the lower mold plate 3;

this drive unit 4 includes connector 41, actuating lever 42 and driver part 43, and this connector 41 is equipped with two, sets up respectively at the both ends of bracing piece 21 and is connected with corresponding connecting rod 27, and the both ends of actuating lever 42 are connected with two connectors 41 respectively for drive two connectors 41 and remove in step, and driver part 43 is connected with actuating lever 42, is used for driving actuating lever 42 and reciprocates.

The driving part 43 may be a pneumatic telescopic cylinder or a hydraulic telescopic cylinder, which are commonly used in the prior art; the motor can also drive the eccentric cam, and then the eccentric cam is rotationally connected with the driving rod 42 through the connecting rod, and then the motor drives the eccentric cam to rotate, so that the driving rod 42 drives the connecting body 41 to periodically move up and down. By the design, the connecting bodies at the two ends of the supporting rod can be ensured to move synchronously as far as possible, so that the two ends of the supporting rod can move synchronously, and the upper template is prevented from deflecting in the moving process.

Preferably, the connecting rod 27 is sleeved with a second spring 28, and the second spring 28 is located between the supporting rod 21 and the lower template 3. Design like this, can the auxiliary stay pole reset fast, can also absorb the shaking force that heat-seal mould produced at the during operation simultaneously.

In an embodiment, the unwinding device 5 includes two vertical plates 51 disposed on the left and right sides and an unwinding roller disposed on the two vertical plates 51, the unwinding roller includes a first roller 52 and a second roller 53, the second roller 53 is coaxial with the first roller 52 and is sleeved outside the first roller 52, and the second roller 53 can only rotate relative to the first roller 52. A screw 54 is spirally arranged in the first roller 52 in a penetrating manner, two ends of the screw 54 respectively penetrate through the first roller 52 to be connected with the two vertical plates 51, a driving component 57 is arranged on one vertical plate 51, and the driving component 57 is connected with one end of the screw 54 and used for driving the screw 54 to rotate. The first roller 52 is also provided with a brake member 55 for preventing the first roller 52 from rotating.

In a specific implementation, two sides of a raw material rolled into a cylindrical shape are usually uneven, and when the raw material is pulled to discharge, the traveling tracks of the discharged strip-shaped raw material are not completely overlapped, so that the unwinding device in the prior art usually has a function of deviation rectification to ensure the traveling overlapping of the discharged strip-shaped raw material. However, in the unwinding device in the prior art, when deviation correction is performed, the unwinding roller is usually driven to move, and meanwhile, a frame body part for mounting the unwinding roller is also driven to move together, so that the power consumption of the unwinding device is large when deviation correction is performed.

The unwinding device 5 of the present invention drives the screw 54 to rotate through the driving component 57, so that the first roller 52 drives the second roller 53 to move to one side and the other side of the axial direction. The accuracy and stability of the screw 54 are better when rotating, so that the accuracy and stability of the whole deviation correcting device are better when correcting. In addition, only the unwinding roller is moved during deviation correction, so that the required output power of the screw 54 is greatly reduced, the power of the driving assembly 57 is further reduced, and the power consumption is reduced.

It should be noted that the technical solution for detecting whether the discharged material is deviated belongs to the common knowledge of those skilled in the art, and the application numbers are: 202021396438.3, the utility model also discloses a corresponding technical means, and therefore, it is not repeated here.

In an embodiment, two ends of the unwinding roller are respectively provided with a fixture block 56, the fixture block 56 is clamped on the two vertical plates 51, one end of the screw 54 is rotatably arranged on the fixture block 56, the other end of the screw 54 penetrates through the fixture block 56 to be detachably connected with the driving assembly 57, and the other end of the screw 54 is rotatably matched with the fixture block 56. The braking member 55 is a polish rod slidably disposed on the first roller 52, and two ends of the polish rod are respectively fixed to the locking blocks 56 at two ends of the unwinding roller. Design like this, because of wearing to establish screw rod and polished rod simultaneously on the first roll body, and screw rod and polished rod disalignment, so first roll body can't rotate, wears to establish on first roll body through making the polished rod slide, and the polished rod can not influence first roll body and remove along the direction of its axis like this, and the polished rod can also play the effect of supporting first roll body simultaneously, and the power on the screw rod is applyed to first roll body of sharing. The two ends of the unwinding roller are clamped on the two vertical plates, and the screw rods are detachably connected with the driving assembly, so that the raw materials are conveniently replaced and designed more reasonably.

In one embodiment, the driving assembly 57 includes a second gear 571, a third gear 572 engaged with the second gear 571, and a first motor 573 for rotating the third gear 572. The second gear 571 is detachably connected to one end of the screw 54 and drives the screw 54 to rotate. The first motor 573 is fixed to one of the vertical plates 51, and the third gear 572 is mounted on an output shaft of the first motor 573. By the design, the third gear and the second gear are driven to rotate through the first motor, so that the screw rod rotates, and the first roller body drives the second roller body to move in the axis direction.

Preferably, the end of the screw 54 is provided with a plug 541, and one surface of the second gear 571 corresponding to the screw 54 is provided with a jack 5711 in plug-in fit with the plug 541, and when the plug 541 is inserted into the jack 5711, the second gear 571 can drive the screw 54 to rotate.

More preferably, the end of the screw 54 is provided with only one non-circular plug 541, and the socket 5711 is located at the rotation center of the second gear 571. By the design, the second gear can be connected and separated with the screw rod only by moving the second gear in the axial direction of the second gear, and the operation is simple and practical.

In one embodiment, the drawing device 6 comprises two side plates 61, and an upper drawing roller 62 and a lower drawing roller 63 which are arranged between the two side plates 61, the top of the lower drawing roller 63 is in accordance with the height of the top surface of the lower template 3, the upper drawing roller 62 is positioned right above the lower drawing roller 63, and two ends of the upper drawing roller 62 are arranged on the side plates 61 in a sliding manner up and down. The upper pull roll 62 is provided with a constant pressure device 64, and the constant pressure device 64 applies a constant pressure to the upper pull roll 62 from the top down. When the upward force applied below upper pull roll 62 is less than the pressure applied above upper pull roll 62 by constant pressure device 64 and the weight of upper pull roll 62 itself, upper pull roll 62 moves downward by itself, whereas upper pull roll 62 moves upward.

In specific implementation, when facing raw materials with different thicknesses and different materials, the pressure applied on the upper drawing roller 62 by the constant pressure device 64 is firstly adjusted in a targeted manner, so that the raw materials are prevented from being crushed in the drawing process. During the process of pulling the material, because the upper pulling roll 62 has a constant pressure and both ends of the upper pulling roll 62 are slidably disposed on the side plates 61 up and down, the material is subjected to a squeezing force approximately equal to the pressure exerted on the upper pulling roll 62 by the constant pressure device 64 when pulling the material. Because of last carry over pinch rolls 62 can be close to and keep away from lower carry over pinch rolls 63 so draw gear 6 can be applicable to the material that various thickness are different, the material is different, and adaptability is stronger to, because last carry over pinch rolls 62 is located carry over pinch rolls 63 down directly over, its stress point of material through the carry over pinch rolls is in its vertical direction, and then ensures that the material that draw gear 6 drew out can not move below or oblique top to one side, is favorable to subsequent segmentation operation.

Preferably, the side plates 61 corresponding to the two ends of the upper pulling roll 62 are provided with second sliding grooves 611, a second sliding block 612 capable of sliding up and down is arranged in the second sliding grooves 611, and the two ends of the upper pulling roll 62 are rotatably arranged on the second sliding block 612.

The constant pressure device 64 is an air pressure telescopic device or a hydraulic telescopic device disposed above the corresponding second sliding block 612, and a telescopic rod 641 of the air pressure telescopic device or the hydraulic telescopic device is connected to the corresponding second sliding block 612 for driving the second sliding block 612 to slide in the second sliding slot 611. The pressure exerted on the second slider 612 by the telescopic rod 641 is equal. By the design, the pressure applied to the second sliding block by the telescopic rod can reach the designated pressure by inputting the working medium into the pneumatic telescopic device or the hydraulic telescopic device. Since how to input the working medium into the pneumatic telescopic device or the hydraulic telescopic device, how to ensure that the working medium reaches the specified pressure, and how to perform pressure relief when the pressure exceeds a preset value, how to reduce the pressure and then make the working medium reach the specified pressure again belong to common knowledge in the hydraulic field, the common knowledge belongs to common knowledge of technicians in the field, and therefore, detailed description is not provided herein.

In an embodiment, one end of the lower pulling roll 63 is provided with a second motor 65, the lower pulling roll 63 is driven by the second motor 65 to rotate, the other end of the lower pulling roll 63 is provided with a rotating member 66, the rotating member 66 comprises a first bevel gear 661 installed at one end of the lower pulling roll 63, a second bevel gear 662 meshed with the first bevel gear 661, a first rod 663 connected with the second bevel gear 662, a second rod 664 slidably arranged in the first rod 663, a third bevel gear 665 arranged at one end of the second rod 664, and a fourth bevel gear 666 arranged at one end of the upper pulling roll 62. The second rod 664 cannot rotate relative to the first rod 663, and the third bevel gear 665 and the fourth bevel gear 666 are meshed and have unchanged relative positions.

In a specific implementation, when the second motor 65 drives the lower traction roller 63 to rotate, the first bevel gear 661 drives the second bevel gear 662 to rotate along with the first rod 663, and the rotating first rod 663 drives the second rod 664 to rotate, so that the third bevel gear 665 drives the fourth bevel gear 666 to rotate, and further the upper traction roller 62 rotates. When the upper pulling roll 62 moves up and down, the relative position between the third bevel gear 665 and the fourth bevel gear 666 is unchanged, so that the upper pulling roll 62 drives the second rod 664 to slide up and down relative to the first rod 663 in the moving process, and the up-and-down movement of the upper pulling roll 62 is not influenced while transmission is ensured. By rotating both the upper pull roll 62 and the lower pull roll 63, the pulling capacity of the apparatus is increased.

Preferably, the side plate 61 is provided with a first box 67, the first bevel gear 661 and the second bevel gear 662 are located in the first box 67, and one end of the first rod 663 rotates to penetrate through the top of the first box 67 and is unchanged relative to the position of the first box 67. The second slider 612 is provided with a second box 68, the third bevel gear 665 and the fourth bevel gear 666 are positioned in the second box 68, the second box 68 and the second slider 612 are fixed in position and can move up and down along with the second slider 612, and one end of the second rod 664 rotates to penetrate through the bottom of the second box 68 and is unchanged relative to the position of the second box 68. Design like this, improved the security of equipment promptly, avoid the gear to receive external disturbance, still can regard as the mounting bracket usefulness of the first body of rod and the second body of rod, reasonable in design.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a medical paper plastic packaging bag production line which characterized in that includes:

the heat-sealing die (1) comprises an upper die plate (2) and a lower die plate (3), wherein the upper die plate (2) comprises two parallel support rods (21), a die plate body (22) and a support assembly, the die plate body (22) is connected with the support assembly, and the support assembly is used for driving the die plate body (22) to move relative to the support rods (21);

the unwinding device (5) is arranged on one side of the heat-sealing die (1) and is used for discharging and rectifying deviation of raw materials rolled into a cylindrical shape;

and the traction device (6) is arranged on the other side of the heat-sealing die (1) and is used for traction of the raw materials on the unreeling device (5).

2. The medical paper-plastic packaging bag production line according to claim 1, wherein a rack (211) is arranged on the top surface of the support rod (21), the support assembly comprises a connection block body (23), a first gear (231) meshed with the rack (211) is arranged at the position of the rack (211) corresponding to the two ends of the connection block body (23), a first rotating shaft (232) is rotatably arranged on the connection block body (23) in a penetrating manner, and the first rotating shaft (232) is connected with the first gear (231) at the two ends of the connection block body (23).

3. The medical paper-plastic packaging bag production line as claimed in claim 2, wherein the connecting block (23) is provided with a screw hole at a position corresponding to the first rotating shaft (232), a stop member (24) is screwed in the screw hole, and one end of the stop member (24) can be abutted against the first rotating shaft (232) by rotating the stop member (24).

4. The medical paper-plastic packaging bag production line according to claim 2, characterized in that the supporting assembly further comprises at least two studs (25) connected with the template plate body (22), one end of each stud (25) is connected with the connecting block body (23), the connecting block body (23) drives the template plate body (22) to move through the studs (25), a first spring (26) is arranged between the connecting block body (23) and the template plate body (22), and the first spring (26) is sleeved on the corresponding stud (25).

5. The medical paper-plastic packaging bag production line according to any one of claims 1 to 4, characterized in that the heat-sealing mold (1) further comprises connecting rods (27) respectively arranged at two ends of each supporting rod (21), and one end of each connecting rod (27) is connected with a driving unit (4) positioned below the lower template (3) in a sliding mode through the lower template (3);

drive unit (4) are including connector (41), actuating lever (42) and driver part (43), connector (41) are equipped with two, set up respectively the both ends of bracing piece (21) are connected with corresponding connecting rod (27), the both ends of actuating lever (42) are connected with two connectors (41) respectively, drive two connector (41) remove in step, driver part (43) with actuating lever (42) are connected, drive actuating lever (42) reciprocate.

6. The medical paper-plastic packaging bag production line as claimed in any one of claims 1 to 4, characterized in that the unwinding device (5) comprises two vertical plates (51) arranged left and right and an unwinding roller arranged on the two vertical plates (51), the unwinding roller comprises a first roller body (52) and a second roller body (53), the second roller body (53) is coaxial with the first roller body (52) and is sleeved outside the first roller body (52), and the second roller body (53) can only rotate relative to the first roller body (52);

a screw rod (54) penetrates through the first roller body (52) in a spiral mode, two ends of the screw rod (54) penetrate through the first roller body (52) and are connected with the two vertical plates (51), a driving assembly (57) is arranged on one vertical plate (51), the driving assembly (57) is connected with one end of the screw rod (54) and used for driving the screw rod (54) to rotate, and a braking part (55) is further arranged on the first roller body (52) and used for preventing the first roller body (52) from rotating.

7. The medical paper-plastic packaging bag production line according to claim 6, wherein two ends of the unwinding roller are respectively provided with a fixture block (56), the fixture blocks (56) are clamped on the corresponding vertical plates (51), one end of the screw rod (54) is rotatably arranged on the fixture blocks (56), the other end of the screw rod (54) passes through the fixture blocks (56) and is detachably connected with a driving assembly (57), the braking component (55) is a polished rod which is slidably arranged on the first roller body (52), and two ends of the polished rod are respectively fixed on the fixture blocks (56) at two ends of the unwinding roller.

8. The medical paper-plastic packaging bag production line as claimed in claim 7, wherein the driving assembly (57) comprises a second gear (571), a third gear (572) engaged with the second gear (571) and a first motor (573) for driving the third gear (572) to rotate, the second gear (571) is detachably connected with one end of the screw (54) and drives the screw (54) to rotate, the first motor (573) is fixed on one of the vertical plates (51), and the third gear (572) is mounted on an output shaft of the first motor (573).

9. The medical paper-plastic packaging bag production line as claimed in any one of claims 1 to 4, characterized in that the traction device (6) comprises two side plates (61) and an upper traction roller (62) and a lower traction roller (63) arranged between the two side plates (61), the upper traction roller (62) is positioned right above the lower traction roller (63), two ends of the upper traction roller (62) are arranged on the corresponding side plates (61) in a sliding manner up and down, a constant pressure device (64) is arranged on the upper traction roller (62), and the constant pressure device (64) applies constant pressure on the upper traction roller (62) from top to bottom.

10. The medical paper-plastic packaging bag production line according to claim 9, characterized by comprising:

the second motor (65) is arranged at one end of the lower traction roller (63) and is used for driving the lower traction roller (63) to rotate;

rotating member (66), including installing first bevel gear (661) of lower carry over pinch rolls (63) one end, with second bevel gear (662) of first bevel gear (661) meshing mutually, with first body of rod (663) that second bevel gear (662) are connected, slide and wear to establish second body of rod (664) in the first body of rod (663), set up and be in third bevel gear (665) and the setting of second body of rod (664) one end go up fourth bevel gear (666) of carry over pinch rolls (62) one end, the second body of rod (664) can't rotate first body of rod (663) relatively, third bevel gear (665) and fourth bevel gear (666) mesh and relative position do not change.