Discharging and clamping mechanism for finished product production of plastic packaging bags
By improving the design of the clamping mechanism and adopting a combination of clamping pneumatic cylinders and gripping pneumatic cylinders, dual clamping of the lever and the feeding clamp strip is achieved, which solves the problem of low clamping efficiency in the existing technology and improves the feeding and clamping efficiency of plastic packaging bags.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-21
AI Technical Summary
The existing plastic packaging bag feeding and gripping mechanism has a limited lowering height of the lever, making it difficult to adjust according to the length of the finished plastic packaging bag, resulting in low gripping efficiency.
A clamping mechanism is designed, comprising a clamping frame, a clamping pneumatic cylinder, a drive assembly, a lifting assembly, and a clamping assembly. Through the cooperation of the clamping pneumatic cylinder and the clamping pneumatic cylinder, dual clamping of the lever and the unloading clamp strip is achieved. The lifting lever can adjust the clamping height to improve clamping efficiency.
It enables flexible clamping based on the length of the finished plastic packaging bag, improving clamping efficiency and ensuring the efficient execution of the clamping process.
Smart Images

Figure CN224147346U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of plastic packaging bag feeding and clamping mechanisms, specifically a feeding and clamping mechanism for finished plastic packaging bags. Background Technology
[0002] The plastic packaging bag feeding and gripping mechanism transports the packaging bag to the position between the clamping strips and the levers. Then, the bag clamping and lifting mechanism is activated, driving the clamping strips and levers to descend to the same height as the bag opening. Subsequently, the clamping strip driving mechanism drives the two clamping strips to move closer to each other in the longitudinal direction, tightening the bag opening. Then, the lever driving mechanism drives the two levers to move closer to each other in the transverse direction, folding the bag opening along the creases on both sides of the transverse direction into the inside of the bag opening. This action continues until the bag opening is clamped, completing the fixation of the plastic packaging bag opening and preparing for subsequent bag folding, sealing and other processes.
[0003] The existing plastic packaging bag feeding and clamping mechanism has a limited lowering height when the two levers approach each other in the lateral direction, making it difficult to adjust according to the length of the finished plastic packaging bag. The two levers can only clamp once at a time, resulting in low feeding and clamping efficiency of the finished plastic packaging bag. Utility Model Content
[0004] The purpose of this utility model is to provide a material feeding and clamping mechanism for finished plastic packaging bag production, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A plastic packaging bag manufacturing finished product unloading and clamping mechanism includes a packaging bag conveying box, a clamping frame, a clamping pneumatic cylinder, and a drive assembly. The clamping frame is fixedly connected to a portion of the packaging bag conveying box. A clamping pneumatic cylinder is installed at a drive portion of the clamping frame. The drive assembly has a mounting portion for both the clamping frame and the clamping pneumatic cylinder. The mechanism also includes...
[0007] The lifting assembly is mounted on the clamping frame;
[0008] A clamping assembly is mounted on the clamping pneumatic cylinder;
[0009] The clamping frame is fixed at the bottom and is equipped with a driving pneumatic cylinder. A folding canvas cover is connected to the wrapping part of the driving pneumatic cylinder. A lower frame is installed at the bottom of the folding canvas cover. A clamping pneumatic cylinder is installed at the driving part of the lower frame.
[0010] As described above, the finished product feeding and clamping mechanism for plastic packaging bags: the shape and structure of the clamping pneumatic cylinder are the same as those of the picking pneumatic cylinder, and the picking pneumatic cylinder is fixedly installed by threads through the lower frame.
[0011] The finished product feeding and clamping mechanism for plastic packaging bags as described above: the clamping frame and the lower frame are isolated and dustproofed by a folded canvas cover.
[0012] The finished product feeding and clamping mechanism for plastic packaging bags as described above: the lifting assembly includes a lifting rod mounted on a driving pneumatic cylinder, and a fixing plate is fixedly installed at the bottom end of the lifting rod.
[0013] The finished product feeding and clamping mechanism for plastic packaging bags as described above: the lifting rod and the fixing bolt are threadedly fastened to the lower frame.
[0014] The finished product feeding and clamping mechanism for plastic packaging bags as described above: the clamping assembly includes a mounting bracket threadedly connected to a clamping pneumatic cylinder, and a through bolt is threaded through the fastening part of the mounting bracket.
[0015] The finished product feeding and clamping mechanism for plastic packaging bags as described above: the clamping assembly further includes a lever installed on the lower frame, and a feeding clamping strip is installed at the fixed position on the lever. The lever and the feeding clamping strip are clamped by a clamping pneumatic cylinder.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: when the driving pneumatic cylinder drives the lifting rod, the lower frame can be lifted and lowered. When the clamping pneumatic cylinder and the holding pneumatic cylinder have the same shape and structure, a lever and a feeding clamp can be installed on the holding pneumatic cylinder. The clamping pneumatic cylinder and the holding pneumatic cylinder can perform two clamping operations through the lever and the feeding clamp. The finished plastic packaging bag between the lower frame and the holding frame is produced by performing two clamping operations through the clamping pneumatic cylinder and the holding pneumatic cylinder, which can improve the feeding and clamping efficiency of the finished plastic packaging bag.
[0017] Tighten the fixing bolt at the bottom of the lifting rod to the lower frame. When the driving pneumatic cylinder drives the lifting rod, the lower frame can be started to move up and down. According to the length of the finished plastic packaging bag, the driving pneumatic cylinder can be started to drive the lifting rod to move up and down, and the lifting rod can adjust the descent height of the unloading clamping mechanism. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the lifting assembly of this utility model;
[0020] Figure 3 This utility model Figure 1 Schematic diagram of the structure at point A in the middle;
[0021] Figure 4 This is a schematic diagram of the structure of the clamping component of this utility model.
[0022] In the diagram: 1. Packaging bag conveyor box; 2. Clamping frame; 3. Clamping pneumatic cylinder; 4. Folding canvas cover; 5. Driving pneumatic cylinder; 6. Lower frame; 7. Clamping pneumatic cylinder; 8. Lifting rod; 9. Fixing bolt plate; 10. Through bolt; 11. Mounting bracket; 12. Lever; 13. Material feeding clamp. Detailed Implementation
[0023] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.
[0024] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0025] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.
[0026] Please see Figures 1-4 A finished product feeding and clamping mechanism for plastic packaging bags is proposed, including a packaging bag conveying box 1, a clamping frame 2, a clamping pneumatic cylinder 3, and a drive assembly.
[0027] A clamping frame 2 is connected to the fixed part of the packaging bag conveyor box 1. A clamping pneumatic cylinder 3 is provided at the drive part of the clamping frame 2. The clamping frame 2 and the clamping pneumatic cylinder 3 are provided at the mounting part of the drive assembly. A lifting assembly is installed on the clamping frame 2. A clamping assembly is provided on the clamping pneumatic cylinder 3.
[0028] The clamping frame 2 is fixedly installed at the bottom of the packaging bag conveying box 1. The clamping pneumatic cylinder 3 is installed on the clamping frame 2. The packaging bag is conveyed through the packaging bag conveying box 1 to the position between the clamping pneumatic cylinder 3 and the clamping frame 2. Then the clamping pneumatic cylinder 3 and the clamping frame 2 are installed at the bag opening of the packaging bag.
[0029] Among them, a driving pneumatic cylinder 5 is fixed at the bottom of the clamping frame 2, a folding canvas cover 4 is connected to the wrapping part of the driving pneumatic cylinder 5, a lower frame 6 is installed at the bottom of the folding canvas cover 4, and a clamping pneumatic cylinder 7 is set at the driving part of the lower frame 6.
[0030] In this embodiment, the driving pneumatic cylinder 5 is fixedly connected to the bottom end of the clamping frame 2. The folded canvas cover 4 is surrounded around the driving pneumatic cylinder 5, and the lower frame 6 is fixedly installed at the bottom end of the folded canvas cover 4. The folded canvas cover 4 can protect between the lower frame 6 and the clamping frame 2. The packaging bag is transported between the lower frame 6 and the clamping frame 2 through the packaging bag conveying box 1, and then protected and isolated by the folded canvas cover 4.
[0031] Preferably, the shape and structure of the clamping pneumatic cylinder 3 are the same as those of the clamping pneumatic cylinder 7. The clamping pneumatic cylinder 7 is threadedly fixed and installed on the lower frame 6. When the packaging bag is conveyed between the lower frame 6 and the clamping frame 2 through the packaging bag conveying box 1, the clamping pneumatic cylinder 7 is driven to perform pneumatic clamping.
[0032] Preferably, the clamping frame 2 and the lower frame 6 are isolated and dustproofed by a folded canvas cover 4. The folded canvas cover 4 surrounds the lower frame 6 and the clamping frame 2, which can protect and isolate the finished plastic packaging bag between the lower frame 6 and the clamping frame 2. The folded canvas cover 4 has the effect of dustproofing and fireproofing.
[0033] Please refer to Figure 1 and Figure 2 In this embodiment, the lifting assembly includes a lifting rod 8 mounted on the driving pneumatic cylinder 5, and a fixing bolt plate 9 is fixedly installed at the bottom end of the lifting rod 8.
[0034] The lifting rod 8 is slidably mounted on the driving pneumatic cylinder 5. The driving pneumatic cylinder 5 drives the lifting rod 8 to move up and down. The fixing plate 9 is fixedly mounted on the bottom of the lifting rod 8. The folding canvas cover 4 can be fixedly mounted on the driving pneumatic cylinder 5. When the driving pneumatic cylinder 5 drives the lifting rod 8, the folding canvas cover 4 can be raised, lowered and folded.
[0035] Preferably, the lifting rod 8 and the fixing plate 9 are threadedly fastened to the lower frame 6. The fixing plate 9 at the bottom of the lifting rod 8 is threadedly fastened to the lower frame 6. When the driving pneumatic cylinder 5 drives the lifting rod 8 with air pressure, the lower frame 6 can be started to move up and down. According to the length of the finished plastic packaging bag, the driving pneumatic cylinder 5 can be started to drive the lifting rod 8 with air pressure, and the lower frame 6 can be driven to move up and down. The lifting rod 8 can adjust the descent height of the unloading clamping mechanism.
[0036] Please refer to Figure 3 and Figure 4 In this embodiment, the clamping assembly includes a mounting bracket 11 threadedly connected to the clamping pneumatic cylinder 3, and a through bolt 10 is threaded through the fastening part of the mounting bracket 11.
[0037] The clamping pneumatic cylinder 3 is threaded onto the clamping frame 2 via the mounting bracket 11 and the through bolt 10. The mounting bracket 11 and the through bolt 10 are threadedly fastened to the clamping frame 2. When the clamping pneumatic cylinder 3 malfunctions, the mounting bracket 11 and the through bolt 10 can be manually disassembled by thread to remove the clamping pneumatic cylinder 3 from the mounting bracket 11 and the through bolt 10 for disassembly and repair.
[0038] Please refer to Figure 3 and Figure 4 In this embodiment, the clamping assembly also includes a lever 12 mounted on the lower frame 6. A feeding clamping bar 13 is mounted on the fixed part of the lever 12. The lever 12 and the feeding clamping bar 13 are clamped by a clamping pneumatic cylinder 7.
[0039] When the clamping pneumatic cylinder 7 and the holding pneumatic cylinder 3 have the same shape and structure, they can be securely installed on the lower frame 6 via the mounting bracket 11 and the through bolt 10. The lever 12 is then installed at the pneumatic drive of the clamping pneumatic cylinder 7, allowing the clamping pneumatic cylinder 7 to pneumatically drive the lever 12 to merge. The unloading clamping strip 13 is then fixedly connected to the lever 12. The lever 12 and the unloading clamping strip 13 are pneumatically driven to clamp via the clamping pneumatic cylinder 7. When the driving pneumatic cylinder 5 pneumatically drives the lifting rod 8... The lower frame 6 can be lifted and driven. When the clamping pneumatic cylinder 7 and the holding pneumatic cylinder 3 have the same shape and structure, the holding pneumatic cylinder 3 can be equipped with a lever 12 and a feeding clamping bar 13. The clamping pneumatic cylinder 7 and the holding pneumatic cylinder 3 can perform two clamping operations through the lever 12 and the feeding clamping bar 13. The finished plastic packaging bag between the lower frame 6 and the holding frame 2 is produced. By performing two clamping operations through the clamping pneumatic cylinder 7 and the holding pneumatic cylinder 3, the feeding and clamping efficiency of the finished plastic packaging bag can be improved.
[0040] As can be seen from the above, in use, the folded canvas cover 4 is surrounded around the driving pneumatic cylinder 5, and the lower frame 6 is fixedly installed at the bottom of the folded canvas cover 4. The folded canvas cover 4 can protect between the lower frame 6 and the clamping frame 2. The lever 12 and the unloading clamping bar 13 are driven by the clamping pneumatic cylinder 7 for pneumatic clamping. When the driving pneumatic cylinder 5 pneumatically drives the lifting rod 8, the lower frame 6 can be lifted and lowered. When the clamping pneumatic cylinder 7 and the clamping pneumatic cylinder 3 have the same shape and structure, the lever 12 and the unloading clamping bar 13 can be installed on the clamping pneumatic cylinder 3. The clamping pneumatic cylinder 7 and the clamping pneumatic cylinder 3 can perform two clamping operations through the lever 12 and the unloading clamping bar 13.
[0041] Mounting bracket 11 and through bolt 10 are threadedly fastened to clamping frame 2. When clamping pneumatic cylinder 3 malfunctions, mounting bracket 11 and through bolt 10 can be manually disassembled by thread. Clamping pneumatic cylinder 3 on mounting bracket 11 and through bolt 10 can be disassembled and repaired. When clamping pneumatic cylinder 7 and clamping pneumatic cylinder 3 have the same shape and structure, they can be fastened to the lower frame 6 by mounting bracket 11 and through bolt 10. Then, lever 12 is installed at the pneumatic drive of clamping pneumatic cylinder 7. Clamping pneumatic cylinder 7 can pneumatically drive lever 12 to merge. Then, unloading clamping strip 13 is fixedly connected to lever 12.
[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A plastic packaging bag production finished product unloading clamping mechanism, comprising a packaging bag conveying box (1), a clamping frame (2), a clamping pneumatic cylinder (3), and a driving assembly, wherein the clamping frame (2) is fixedly connected to the packaging bag conveying box (1), the clamping pneumatic cylinder (3) is provided at the driving position of the clamping frame (2), and the clamping frame (2) and the clamping pneumatic cylinder (3) are provided at the mounting position of the driving assembly, characterized in that: It also includes settings, A lifting assembly is installed on the clamping frame (2); A clamping assembly is mounted on the clamping pneumatic cylinder (3); Among them, a driving pneumatic cylinder (5) is provided at the bottom fixed position of the clamping frame (2), a folding canvas cover (4) is connected to the wrapping part of the driving pneumatic cylinder (5), a lower frame (6) is installed at the bottom of the folding canvas cover (4), and a clamping pneumatic cylinder (7) is provided at the driving part of the lower frame (6).
2. The finished plastic packaging bag production unloading and clamping mechanism according to claim 1, characterized in that, The shape and structure of the clamping pneumatic cylinder (3) are the same as those of the clamping pneumatic cylinder (7), and the clamping pneumatic cylinder (7) is fixedly installed by the lower frame (6) with threads.
3. The plastic packaging bag production finished product unloading and clamping mechanism according to claim 1, characterized in that, The clamping frame (2) and the lower frame (6) are isolated from dust by a folded canvas cover (4).
4. The plastic packaging bag production finished product discharging and clamping mechanism according to claim 1, characterized in that, The lifting assembly includes a lifting rod (8) mounted on a driving pneumatic cylinder (5), and a fixing plate (9) is fixedly installed at the bottom end of the lifting rod (8).
5. The plastic packaging bag production finished product unloading and clamping mechanism according to claim 4, characterized in that, The lifting rod (8) and the fixing plate (9) are threadedly fastened to the lower frame (6).
6. The plastic packaging bag production finished product discharging and clamping mechanism according to claim 1, characterized in that, The clamping assembly includes a mounting bracket (11) threadedly connected to the clamping pneumatic cylinder (3), and a through bolt (10) is threaded through the fastening part of the mounting bracket (11).
7. The plastic packaging bag production finished product unloading and clamping mechanism according to claim 6, characterized in that, The clamping assembly also includes a lever (12) mounted on the lower frame (6), and a feeding clamp (13) is installed at the fixed position on the lever (12). The lever (12) and the feeding clamp (13) are clamped by a clamping pneumatic cylinder (7).