Packaging bag lining through hole punching device

Abstract

The utility model relates to a packaging bag lining through hole punching device which comprises a punching table, a punching assembly is arranged on the upper side of the punching table, a supporting assembly is arranged on the lower side of the punching table, and during punching, the supporting assembly is used for supporting the lower side of a part to be punched and removed of a packaging bag lining so as to prevent the part to be punched and removed from the packaging bag lining in the downward punching process of the punching assembly. The packaging bag lining deforms downwards, and the strength of the packaging bag lining around the punched hole is changed.

Description

Technical Field

[0001] The utility model relates to the technical field of film rewinding, in particular to a punching device for through holes in the inner lining of a packaging bag. Background Art

[0002] A paper handbag generally includes a bag body and a handle rope arranged on the bag body. The connection mode between the handle rope and the bag body generally adopts the following method: through holes are opened on the opposite sides of the bag body near the mouth edge, stoppers are arranged at both ends of the handle rope, the handle rope is arranged inside the through holes, and the handle rope and the bag body can be relatively fixedly connected through the stoppers and the through holes. In order to enhance the strength of the through holes at the mouth edge of the bag body, a cardboard is usually arranged as an inner lining at the mouth edge of the bag body, and punching is carried out through the cardboard. Existing punching devices generally include a punching part and a punching table with through holes. When the punching part punches through the packaging bag and the inner lining on the punching table, since the bottom of the part to be removed lacks support, when the punching part abuts against the packaging bag and the inner lining and moves downward, it may cause deformation around the punched hole, and the size of the punched hole may be inconsistent. In addition, since the strength of the cardboard inner lining decreases due to moisture absorption, the through hole will be enlarged under the action of the lifting stopper, and finally the handle rope stopper will break away from the through hole. Therefore, on this basis, the applicant adds a through hole fixing plate at the through hole through the punching device of the present application. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is that in the existing punching device for through holes in the inner lining of a packaging bag, there is a lack of support at the bottom during the punching process, and the remaining parts generated by punching may accumulate inside the cylindrical punching knife and cannot be automatically removed. Secondly, the existing device cannot strengthen the punched holes. In view of the above defects of the prior art, a punching device for through holes in the inner lining of a packaging bag is provided.

[0004] In order to solve the above technical problems, the technical scheme adopted by the utility model is as follows:

[0005] Construct a punching device for through holes in the inner lining of a packaging bag, which includes a punching table, a punching component is arranged on the upper side of the punching table, and a supporting component is arranged on the lower side of the punching table. During punching, the supporting component is used to provide support for the lower side of the part to be punched and removed from the inner lining of the packaging bag, so as to prevent the inner lining of the packaging bag from deforming downward during the downward punching process of the punching component, and changing the strength of the inner lining of the packaging bag around the punched hole.

[0006] Preferably, the punching component includes a punching cylinder and a punching knife fixedly arranged at the telescopic end of the punching cylinder, wherein the punching knife is cylindrical, and an annular punching blade is arranged at one end far away from the punching cylinder.

[0007] Preferably, the stamping assembly further includes an ejecting structure. The ejecting structure includes an ejecting arm. An anti-detaching plate A is arranged at the upper end of the ejecting arm, and a top plate is arranged at the lower end. A partition plate is arranged inside the cylindrical shape. The ejecting arm is telescopically arranged on the partition plate. The anti-detaching plate A is located above the partition plate, and the top plate is located below the partition plate. A first spring is sleeved on the ejecting arm between the top plate and the partition plate. After stamping, the elastic force of the first spring causes the top plate to eject the inner lining remaining after stamping inside the stamping knife.

[0008] Preferably, a stamping hole corresponding to the stamping knife is arranged on the stamping table. The diameter of the stamping hole is slightly larger than the outer diameter of the stamping knife. The supporting assembly is arranged below the stamping table, and the supporting end of the supporting assembly is located inside the stamping hole, and the supporting end is on the same plane as the upper surface of the stamping table.

[0009] Preferably, the supporting assembly includes a fixed cylinder and a supporting arm. A supporting plate is fixedly arranged at the upper end of the supporting arm, and an anti-detaching plate B is fixedly arranged at the lower end. The supporting plate is used as the supporting end of the supporting assembly to provide support for the lower surface of the inner lining of the packaging bag to be stamped. The lower end of the fixed cylinder is provided with an end plate and the upper end is open. The fixed cylinder is fixedly arranged on the lower surface of the stamping table, and the fixed cylinder is coaxially arranged with the stamping hole. The supporting arm is slidably arranged on the end plate. The supporting plate is located above the end plate, and the anti-detaching plate B is located below the end plate. A second spring is arranged between the supporting plate and the end plate.

[0010] Preferably, in the non-stamping state, under the elastic support of the second spring, the upper surface of the supporting plate is on the same plane as the upper surface of the stamping table.

[0011] Preferably, the device further includes a punching reinforcement plate fixing assembly. The punching reinforcement plate fixing assembly includes a pressing plate and a placing groove. The pressing plate is arranged in a ring shape outside the stamping knife. The placing groove is a circular groove arranged on the stamping table, and the placing groove is coaxially arranged with the stamping hole. A punching reinforcement plate is arranged in the placing groove. The punching reinforcement plate is annular, and a plurality of fixing claws are arranged on the upper surface of the punching reinforcement plate. The fixing claws are located on the same circumference.

[0012] Preferably, a fixing claw turning groove corresponding to the fixing claw is arranged on the lower side of the pressing plate. The fixing claw turning groove is an annular groove. After stamping, the pressing plate continues to move downward along with the stamping knife, and turns the fixing claws of the punching reinforcement plate in the placing groove through the fixing claw turning groove, so as to arrange the punching reinforcement plate on one side of the inner lining of the packaging bag through the fixing claws. In this way, the punching reinforcement plate fixed on one side of the inner lining of the packaging bag can provide the stability for the direct connection between the packaging bag handle and the punching hole, and avoid the deformation of the through hole and the separation of the handle and the through hole when the items contained in the packaging bag are too heavy.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. The stamping knife of the stamping assembly of the present utility model is cylindrical, and a ring-shaped stamping blade is provided at the stamping end. In this way, during the stamping process, the stamping knife is in line contact with the bag body or the inner lining, reducing the downward pulling force of the stamping knife on the bag body and the inner lining during the stamping process.

[0015] 2. A top-out structure is provided on the stamping knife of the present utility model. After the stamping is completed, the inner lining debris and bag body debris remaining inside the stamping knife can be ejected through the top-out structure.

[0016] 3. The support assembly of the present utility model includes a fixed cylinder and a support arm. A support plate is provided at the upper end of the support arm, and an anti-disengagement plate B is provided at the lower end. Under the action of the second spring, the support plate can move downward along with the stamping of the stamping knife, thereby ensuring that the support plate can provide support for the upper-side inner lining during the entire stamping process.

[0017] 4. By providing a punching reinforcement plate stamping assembly, the present utility model can set a punching reinforcement plate on one side of the inner lining of the packaging bag. The punching reinforcement plate significantly improves the overall strength of the inner lining around the punching hole, and can thus provide a strong fixing effect for the lifting rope arranged in the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will further illustrate the present utility model in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0019] Figure 1 Is the three-dimensional view of Embodiment 1 of the present utility model Figure 1 .

[0020] Figure 2 Is the sectional three-dimensional view of Embodiment 1 of the present utility model.

[0021] Figure 3 Is Figure 2 The partial enlarged view of part A in

[0022] Figure 4 Is Figure 2 The partial enlarged view of part B in

[0023] Figure 5 Is the sectional three-dimensional view of Embodiment 2 of the present utility model.

[0024] Figure 6 Is the sectional three-dimensional view of the preset punching reinforcement plate of Embodiment 2 of the present utility model.

[0025] Figure 7 Is Figure 5Partial enlarged view of part C.

[0026] Figure 8 is Figure 5 Partial enlarged view of part D.

[0027] Figure 9 is Figure 6 Partial enlarged view of part E. Detailed implementation mode

[0028] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment 1

[0030] As Figure 1-5 shown, as a punching device for the inner lining through holes of a packaging bag of the present utility model, it includes a punching table 10. There is a U-shaped frame 101 on the upper side of the punching table 10, and support legs 102 are arranged at the bottom of the punching table 10. A punching assembly 20 is arranged on the U-shaped frame 101 on the upper side of the punching table 10, and a support assembly 30 is arranged on the lower side of the punching table 10. During punching, the support assembly 30 is used to provide support for the lower side of the part to be punched and removed from the inner lining of the packaging bag, so as to prevent the inner lining of the packaging bag from deforming downward during the downward punching process of the punching assembly 20, and changing the strength of the inner lining of the packaging bag around the punching hole.

[0031] In some embodiments, the punching assembly 20 includes a punching cylinder 201 and a punching knife 202 fixedly arranged at the telescopic end of the punching cylinder 201. The punching cylinder 201 is fixed to the U-shaped frame 101 by bolts, and the telescopic end of the punching cylinder 201 can telescopically move downward below the U-shaped frame 101. The punching knife 202 is cylindrical, and an annular punching blade 2021 is arranged at the end far from the punching cylinder 201. The annular punching blade 2021 can cut quickly during punching, so as to avoid the possibility of deformation of the packaging bag and its inner lining during the downward movement of the punching knife 202.

[0032] Furthermore, in this embodiment, the stamping assembly 20 further includes an ejection structure 203, and the ejection structure 203 can eject the residual inner lining or packaging bag inside the stamping die 202 after stamping. Specifically, the ejection structure 203 includes an ejection arm 2031, an anti-disengagement plate A 2032 is arranged at the upper end of the ejection arm 2031, and a top plate 2033 is arranged at the lower end. A partition plate 2022 is fixedly arranged inside the cylindrical stamping die 202. A through hole for the ejection arm is arranged at the center of the partition plate 2022. The ejection arm 2031 passes through the through hole for the ejection arm and is telescopically arranged on the partition plate 2022. The anti-disengagement plate A 2032 is located above the partition plate 2022, and the top plate 2033 is located below the partition plate 2022. A first spring 2034 is sleeved on the ejection arm 2031 between the top plate 2033 and the partition plate 2022. The first spring 2034 is always in a compressed state. After stamping, the elastic force of the first spring 2034 causes the top plate 2033 to eject the residual inner lining inside the stamping die 202.

[0033] It should be noted that in the non-stamping state, the ejection structure 203 is in an initial state under the action of its own gravity and the elastic force of the first spring 2034. The lower side of the anti-disengagement plate 2032 abuts against the upper side of the partition plate 2022, and the top plate 2033 is located at the edge of the stamping die 202. During stamping, the part of the packaging bag and the inner lining cut by the stamping die 202 pushes the top plate 2033 upward, thereby causing the ejection structure 203 to contract upward. After stamping, the ejection structure 203 ejects the residues cut inside the stamping die 202 under the action of its own gravity and the elastic force of the first spring 2034.

[0034] A stamping hole corresponding to the stamping die 202 is provided on the stamping table 10. The stamping hole penetrates through the upper and lower surfaces of the stamping table 10, and the diameter of the stamping hole is slightly larger than the outer diameter of the stamping die 202. This is a common slightly larger situation due to processing precision limitations. The support assembly 30 is arranged below the stamping table 10, and the support end of the support assembly 30 is located inside the stamping hole. The support end is flush with the upper surface of the stamping table 10. It is necessary to ensure that the support end is not smaller than the stamping die so as to ensure that the support end can provide sufficient support.

[0035] Specifically, the support assembly 30 includes a fixed cylinder 301 and a support arm 302. A support plate 303 is fixedly provided at the upper end of the support arm 302, and an anti - detachment plate B304 is fixedly provided at the lower end. The support plate 303, as the support end of the support assembly 30, is used to provide support for the lower surface of the inner lining of the packaging bag to be punched. The lower end of the fixed cylinder 301 is provided with an end plate 3011 and the upper end is open. A support arm through - hole is provided on the end plate 3011. The fixed cylinder 301 is fixedly provided on the lower side of the punching table 10. The open end of the fixed cylinder 301 is welded to the lower surface of the punching table 10 around the punching hole, and the fixed cylinder 301 is coaxially arranged with the punching hole. The support arm 302 is slidably arranged on the end plate 3011 through the support arm through - hole. The support plate 303 is located above the end plate 3011, and the anti - detachment plate B304 is located below the end plate 3011. A second spring 305 is arranged between the support plate 303 and the end plate 3011.

[0036] It should be noted that a layer of hard rubber layer (not shown in the attached drawing) is provided on the upper side of the support plate 303. The hard rubber layer can prevent the support plate from damaging the punching blade after punching. In the non - punching state, under the elastic support of the second spring 305, the upper surface of the support plate 303 is coplanar with the punching table 10. Moreover, in the initial stage when the second spring 305 deforms under the downward pressure, the upward elastic force is greater than the downward pressure generated when the punching assembly punches. This can ensure that the support plate 303 will not shrink downward due to the downward pressure of the punching assembly 20 at the beginning of punching.

[0037] Embodiment 2

[0038] In addition, compared with Embodiment 1, this embodiment further includes a punching reinforcement plate fixing assembly 40. The punching reinforcement plate fixing assembly 40 is used to fix a preset punching reinforcement plate 1 on one side around the punching of the packaging bag and its inner lining, so as to strengthen the strength around the punching through the punching reinforcement plate, so that during the use of the packaging bag, the punching is not easily deformed or damaged, that is, the lifting rope is not easily detached from the punching. The punching reinforcement plate fixing assembly 40 includes a pressing plate 401 and a placement groove 402. Among them, the pressing plate 401 is annularly arranged outside the punching knife 202. The placement groove 402 is a circular groove provided on the punching table 10, and the placement groove 402 is coaxially arranged with the punching hole. The punching reinforcement plate 1 is preset in the placement groove 402. The punching reinforcement plate 1 is annular, and a plurality of fixing claws 11 are provided on the upper surface of the punching reinforcement plate 1. The fixing claws 11 are located on the same circumference.

[0039] Further, a fixing claw turning groove 4011 corresponding to the fixing claw 11 is provided on the lower side of the pressing plate 401. The fixing claw turning groove 4011 is an annular groove. After stamping, the pressing plate 401 continues to move downward along with the stamping knife 202, and turns the fixing claw 11 of the punching reinforcement plate 1 in the placing groove 402 through the fixing claw turning groove 4011, so as to arrange the punching reinforcement plate 1 on one side of the inner lining of the packaging bag through the fixing claw 11.

[0040] Finally, it should be noted that the stamping process, working principle, fixing process and working principle of the punching reinforcement plate of the present utility model are as follows:

[0041] Stamping preparation: First, place the punching reinforcement plate 1 in the placing groove 402 on the stamping table 10, and ensure that the fixing claw 11 faces upward. Then, place the packaging bag to be punched on the stamping table 10, and make the punching position directly below the stamping assembly 20;

[0042] Punching: Under the action of the stamping cylinder 201, the stamping knife 202 moves towards the stamping table 10. The stamping knife 202 gradually contacts the packaging bag, making the lower side of the packaging bag contact the support plate 303. The stamping knife 202 continues to move downward, cuts and punches the packaging bag and the inner lining through the stamping blade 2021 until the stamping knife 202 contacts the support plate 303, completing the stamping;

[0043] Fixing process of the punching reinforcement plate: After stamping, the stamping knife 202 continues to move downward under the driving action of the stamping cylinder 201. The stamping knife 202 forces the support assembly 30 to move downward. The stamping knife 202 is inserted into the punching hole until the fixing claw turning groove 4011 on the pressing plate 401 contacts the fixing claw 11 and turns and bends the fixing claw 11 into the upper side of the packaging bag, thus completing the fixing of the punching reinforcement plate.

[0044] It should be noted that the fixing claw 11 first contacts one side of the fixing claw turning groove 4011. Along with the continuous downward movement of the pressing plate 401, the end of the fixing claw 11 slides along the fixing claw turning groove 4011, so that the fixing claw 11 is bent. This process is similar to the binding principle of a stapler.

[0045] It should be understood that the present utility model is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the present utility model.

Claims

1. A punching device for through holes in the inner lining of a packaging bag, comprising a punching table, characterized in that, A stamping assembly is arranged on the upper side of the stamping table, and a support assembly is arranged on the lower side of the stamping table. During stamping, the support assembly is used to provide support for the lower side of the part of the packaging bag lining to be removed by stamping, so as to prevent the packaging bag lining from deforming downward during the downward stamping process of the stamping assembly, and changing the strength of the packaging bag lining around the punching hole.

2. The through-hole stamping device for the inner lining of a packaging bag according to claim 1, characterized in that The stamping assembly includes a stamping cylinder and a stamping knife fixedly arranged at the telescopic end of the stamping cylinder. The stamping knife is cylindrical, and a ring-shaped stamping blade is arranged at the end far from the stamping cylinder.

3. The punching device for through holes in the inner lining of a packaging bag according to claim 2, wherein, The stamping assembly further includes an ejecting structure. The ejecting structure includes a top arm. An anti-detaching plate A is arranged at the upper end of the top arm, and a top plate is arranged at the lower end. A partition plate is arranged inside the cylinder shape. The top arm is telescopically arranged on the partition plate. The anti-detaching plate A is located above the partition plate, and the top plate is located below the partition plate. A first spring is sleeved on the top arm between the top plate and the partition plate. After stamping is completed, the elastic force of the first spring causes the top plate to eject the lining remaining inside the stamping knife.

4. A punching device for through holes in the inner lining of a packaging bag according to claim 3, characterized in that, A stamping hole corresponding to the stamping knife is arranged on the stamping table. The diameter of the stamping hole is slightly larger than the outer diameter of the stamping knife. The support assembly is arranged below the stamping table, and the support end of the support assembly is located inside the stamping hole, and the support end is on the same plane as the upper surface of the stamping table.

5. A punching device for through holes in the inner lining of a packaging bag according to claim 4, characterized in that, The support assembly includes a fixed cylinder and a support arm. A support plate is fixedly arranged at the upper end of the support arm, and an anti-detaching plate B is fixedly arranged at the lower end. The support plate is used as the support end of the support assembly to provide support for the lower surface of the packaging bag lining to be stamped. The lower end of the fixed cylinder is provided with an end plate and the upper end is open. The fixed cylinder is fixedly arranged on the lower surface of the stamping table and is coaxially arranged with the stamping hole. The support arm is slidably arranged on the end plate. The support plate is located above the end plate, and the anti-detaching plate B is located below the end plate. A second spring is arranged between the support plate and the end plate.

6. The punching device for through holes in the inner lining of a packaging bag according to claim 5, characterized in that, In the non-stamping state, under the elastic support of the second spring, the upper surface of the support plate is on the same plane as the upper surface of the stamping table.

7. A through-hole stamping device for a packaging bag liner according to claim 6, wherein, The device further includes a punching reinforcement plate fixing component. The punching reinforcement plate fixing component includes a pressing plate and a placement groove. The pressing plate is ring-shaped and is arranged outside the stamping knife. The placement groove is a circular groove arranged on the stamping table and is coaxially arranged with the stamping hole. A punching reinforcement plate is arranged in the placement groove. The punching reinforcement plate is annular, and a plurality of fixing claws are arranged on the upper surface of the punching reinforcement plate. The fixing claws are located on the same circumference.

8. A through-hole stamping device for the inner lining of a packaging bag according to claim 7, wherein, A fixing claw turning groove corresponding to the fixing claw is arranged on the lower side of the pressing plate. The fixing claw turning groove is an annular groove. After stamping is completed, the pressing plate continues to move downward along with the stamping knife, and turns the fixing claws of the punching reinforcement plate in the placement groove through the fixing claw turning groove, so as to arrange the punching reinforcement plate on one side of the packaging bag lining through the fixing claws.

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