Cutting device for plastic bag production
By using a hydraulic cylinder to drive the cutter head downward and a ball-locking design, the problems of inaccurate material positioning and inconvenient cutter disassembly in plastic bag production cutting devices are solved, achieving automatic positioning and convenient disassembly.
Patent Information
- Application Number
- CN202520340002.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing plastic bag production cutting equipment requires manual operation when positioning materials, which affects the cutting effect, and the disassembly of the cutter is inconvenient for maintenance.
The material is positioned by moving the cutter holder downward using a hydraulic cylinder, and the cutter can be easily disassembled by inserting a ball into a groove. The design of the positioning block and spring enables automatic positioning and disassembly.
It achieves automatic material positioning, preventing deviation during cutting, and the cutter is easy to disassemble and maintain.
Smart Images

Figure CN223791111U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cutting device technical field, concretely is a plastic bag production cutting device. BACKGROUND
[0002] The plastic bag production cutting device is one of the equipment for producing and processing plastic bags, and the main function is to cut the produced plastic film or pipe according to a certain length to make standard size plastic bags. This cutting device is usually used for producing commercial plastic bags, such as shopping bags, food packaging bags, etc.
[0003] The utility model discloses a cutting machine of degradable environmental protection plastic bag production discloses the prior art patent for a kind of cutting machine of degradable environmental protection plastic bag production, including base, the base is fixedly installed with cylinder, the cylinder is fixedly connected with mounting plate, the mounting plate is fixedly connected with mounting seat, the inside sliding connection of mounting seat has slide rod. The utility model discloses a mounting seat, damping block, air inlet hole and other components are provided, which can buffer the cutting knife during use, effectively reduce the impact force of the cutting knife, and effectively protect the cutting knife. The problem of damage to the cutting knife caused by the lack of a buffer structure during use of the cutting machine is solved.
[0004] In the prior art, manual operation is required during positioning of the material during use of the cutting device. The material is positioned by being clamped between two plate members, and after positioning, the two ends of the material are in a suspended state, which affects the subsequent cutting effect. Moreover, the cutting knife is not easy to disassemble and maintain after being worn out or dull. Therefore, improvement is needed. UTILITY MODEL CONTENTS
[0005] The utility model discloses a plastic bag production cutting device, which solves the problem of inconvenient positioning and cutting of materials, and also solves the problem of inconvenient disassembly and maintenance of the cutting knife.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a plastic bag production cutting device, including base, the bottom of base is fixedly connected with a plurality of support seat that is evenly distributed, the bottom of support seat is fixedly connected with antiskid pad, the upper end of base is fixedly connected with support rod, the top of support rod is fixedly connected with top plate, the upper end of top plate is fixedly connected with hydraulic cylinder, the output end of hydraulic cylinder is slidably connected with top plate, the lower end of output end of hydraulic cylinder is fixedly connected with knife rest, the inside of knife rest is slidably sleeved with cutting knife, the knife rest is provided with connecting mechanism, and the knife rest is provided with positioning mechanism.
[0007] Preferably, the top of the knife rest is fixedly connected with a guide rod, and the guide rod is slidably connected with the top plate. By designing the guide rod, the movement of the knife rest can be guided.
[0008] Preferably, the connecting mechanism comprises a groove, the cutter is internally provided with the groove, a clamping ball is movably sleeved in the groove, the clamping ball is movably connected with the cutter holder, a sliding block is movably sleeved on the outer side of the clamping ball, the sliding block is slidably connected with the cutter holder, a fixed seat is slidably sleeved on the outer side of the sliding block, the fixed seat is fixedly connected with the cutter holder, a slide rod is fixedly connected with the outer side of the sliding block, the slide rod is slidably connected with the fixed seat, and a first spring is arranged on the outer side of the slide rod. Through the design of the connecting mechanism, the cutter is convenient to disassemble.
[0009] Preferably, one end of the first spring is fixedly connected with the sliding block, and the other end of the first spring is fixedly connected with the fixed seat. Through the design of the first spring, the acting force of the first spring can act on the sliding block.
[0010] Preferably, the positioning mechanism comprises a connecting rod, the outer side of the cutter holder is fixedly connected with the connecting rod, a connecting sleeve is slidably sleeved on the outer side of the connecting rod, a positioning block is fixedly connected to the bottom of the connecting sleeve, a fixed rod is slidably sleeved in the connecting rod, the fixed rod is fixedly connected with the connecting sleeve, a second spring is arranged on the outer side of the fixed rod, a guide block is fixedly connected with the outer side of the connecting rod, and the guide block is slidably connected with the connecting sleeve. Through the design of the positioning mechanism, the material is convenient to automatically position.
[0011] Preferably, one end of the second spring is fixedly connected with the connecting rod, and the other end of the second spring is fixedly connected with the connecting sleeve. Through the design of the second spring, the acting force of the second spring can act on the connecting sleeve.
[0012] Preferably, a guide groove is formed in the inner side of the connecting sleeve, and the guide block is slidably connected in the guide groove. Through the design of the guide groove, the guide block can slide along the connecting sleeve.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] 1、Through the action of the hydraulic cylinder, the output end of the hydraulic cylinder can drive the cutter holder to move downward, thereby driving the cutter to move and cutting the material, before cutting, the positioning block will first contact the material, the material can be positioned by being pressed downward, and the offset movement of the material during cutting can be effectively prevented to affect the cutting effect of the material.
[0015] 2、Through the insertion of the clamping ball and the groove, the cutter can be limited and connected and fixed with the cutter holder, when the cutter needs to be disassembled, the clamping ball and the cutter can be separated by directly pulling down the cutter, the cutter is convenient to disassemble, and the grinding and maintenance after dulling are facilitated. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1The overall structure perspective view of the utility model;
[0017] Figure 2 The utility model Figure 1 The knife seat local structure perspective sectional view of the utility model;
[0018] Figure 3 The utility model Figure 2 The A place enlarged view of the utility model;
[0019] Figure 4 The utility model Figure 1 The connecting sleeve front view sectional view of the utility model.
[0020] In the drawing: 1, base, 2, support seat, 3, non-slip pad, 4, support rod, 5, top plate, 6, hydraulic cylinder, 7, knife seat, 8, connecting mechanism, 9, positioning mechanism, 10, cutter, 11, guide rod, 81, recess, 82, ball, 83, sliding block, 84, fixed seat, 85, sliding rod, 86, first spring, 91, connecting rod, 92, connecting sleeve, 93, positioning block, 94, fixed rod, 95, second spring, 96, guide block, 97, guide groove. Specific embodiments
[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0022] Please refer to Figure 1 、 Figure 2 A plastic bag production cutting device, including base 1, the bottom of base 1 is fixedly connected with a plurality of evenly distributed support seat 2, the bottom of support seat 2 is fixedly connected with non-slip pad 3, the upper end of base 1 is fixedly connected with support rod 4, the top of support rod 4 is fixedly connected with top plate 5, the upper end of top plate 5 is fixedly connected with hydraulic cylinder 6, the output end of hydraulic cylinder 6 is slidably connected with top plate 5, the lower end of the output end of hydraulic cylinder 6 is fixedly connected with knife seat 7, cutter 10 is slidably connected in the interior of knife seat 7, the top of knife seat 7 is fixedly connected with guide rod 11, guide rod 11 is slidably connected with top plate 5, the movement of knife seat 7 can be guided by designing guide rod 11, connecting mechanism 8 is arranged on knife seat 7, positioning mechanism 9 is arranged on knife seat 7.
[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3The connecting mechanism 8 comprises a groove 81, the inside of the cutter 10 is provided with the groove 81, the inside of the groove 81 movably sleeves a clamping ball 82, the clamping ball 82 is movably connected with the cutter holder 7, the outside of the clamping ball 82 movably sleeves a sliding block 83, the sliding block 83 is slidingly connected with the cutter holder 7, the outside of the sliding block 83 slidingly sleeves a fixing seat 84, the fixing seat 84 is fixedly connected with the cutter holder 7, the outside of the sliding block 83 is fixedly connected with a sliding rod 85, the sliding rod 85 is slidingly connected with the fixing seat 84, the outside of the sliding rod 85 is provided with a first spring 86, one end of the first spring 86 is fixedly connected with the sliding block 83, the other end of the first spring 86 is fixedly connected with the fixing seat 84, through the design of the first spring 86, the acting force of the first spring 86 can act on the sliding block 83, through the design of the connecting mechanism 8, the cutter 10 is convenient to disassemble.
[0024] Please refer to Figure 1 、 Figure 4 The positioning mechanism 9 comprises a connecting rod 91, the outside of the cutter holder 7 is fixedly connected with the connecting rod 91, the outside of the connecting rod 91 slidingly sleeves a connecting sleeve 92, the bottom of the connecting sleeve 92 is fixedly connected with a positioning block 93, the inside of the connecting rod 91 slidingly sleeves a fixing rod 94, the fixing rod 94 is fixedly connected with the connecting sleeve 92, the outside of the fixing rod 94 is provided with a second spring 95, one end of the second spring 95 is fixedly connected with the connecting rod 91, the other end of the second spring 95 is fixedly connected with the connecting sleeve 92, through the design of the second spring 95, the acting force of the second spring 95 can act on the connecting sleeve 92, the outside of the connecting rod 91 is fixedly connected with a guide block 96, the guide block 96 is slidingly connected with the connecting sleeve 92, the inside of the connecting sleeve 92 is provided with a guide groove 97, the inside of the guide groove 97 slidingly connects with the guide block 96, through the design of the guide groove 97, the guide block 96 can slide along the connecting sleeve 92, through the design of the positioning mechanism 9, the material is convenient to automatically position.
[0025] The specific implementation process of the utility model is as follows: in use, first, the material is placed on the base 1, then the hydraulic cylinder 6 is started, the output end of the hydraulic cylinder 6 drives the cutter holder 7 to move downwards, the cutter holder 7 drives the guide rod 11 to slide inside the top plate 5, at the same time, the cutter holder 7 drives the connecting rod 91, the connecting sleeve 92 and the positioning block 93 to move downwards, the positioning block 93 will first contact the material, then the connecting rod 91 continuously moves downwards, the connecting rod 91 drives the guide block 96 to move downwards while sliding along the fixing rod 94, the connecting rod 91 will extrude the second spring 95, under the elastic action of the second spring 95, a downward thrust is given to the connecting sleeve 92, the positioning block 93 can position the material by pressing downwards, which can effectively prevent the offset movement of the material during cutting from affecting the cutting effect of the material, with the continuous downward movement of the cutter holder 7, the material can be cut by the cutter 10.
[0026] When the cutter 10 needs to be disassembled, the cutter 10 is directly pulled down, the cutter 10 slides relative to the clamping ball 82, the clamping ball 82 is extruded and pushed to move horizontally, the clamping ball 82 drives the sliding block 83 and the sliding rod 85 to move horizontally, the sliding block 83 can extrude the first spring 86, the clamping ball 82 can be separated from the groove 81, and then the cutter 10 can be pulled out from the inside of the cutter seat 7, so that the cutter 10 is conveniently disassembled and is convenient for polishing and maintenance after dulling.
[0027] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cutting device for plastic bag production, comprising a base (1), characterized in that: The bottom of the base (1) is fixedly connected with a plurality of support seats (2) distributed uniformly, the bottom of the support seat (2) is fixedly connected with an anti-skid pad (3), the upper end of the base (1) is fixedly connected with a support rod (4), the top of the support rod (4) is fixedly connected with a top plate (5), the upper end of the top plate (5) is fixedly connected with a hydraulic cylinder (6), the output end of the hydraulic cylinder (6) is slidably connected with the top plate (5), the lower end of the output end of the hydraulic cylinder (6) is fixedly connected with a cutter seat (7), the cutter seat (7) is slidably sleeved with a cutter (10), the cutter seat (7) is provided with a connecting mechanism (8), and the cutter seat (7) is provided with a positioning mechanism (9).
2. The cutting device for plastic bag production according to claim 1, characterized in that: The top of the cutter seat (7) is fixedly connected with a guide rod (11), and the guide rod (11) is slidably connected with the top plate (5).
3. The cutting device for plastic bag production according to claim 1, characterized in that: The connecting mechanism (8) comprises a groove (81), the inside of the cutter (10) is provided with the groove (81), the inside of the groove (81) is movably sleeved with a clamping ball (82), the clamping ball (82) is movably connected with the cutter seat (7), the outer side of the clamping ball (82) is movably sleeved with a sliding block (83), the sliding block (83) is slidably connected with the cutter seat (7), the outer side of the sliding block (83) is slidably sleeved with a fixing seat (84), the fixing seat (84) is fixedly connected with the cutter seat (7), the outer side of the sliding block (83) is fixedly connected with a sliding rod (85), the sliding rod (85) is slidably connected with the fixing seat (84), and the outer side of the sliding rod (85) is provided with a first spring (86).
4. The apparatus according to claim 3, wherein: One end of the first spring (86) is fixedly connected with the sliding block (83), and the other end of the first spring (86) is fixedly connected with the fixing seat (84).
5. The apparatus of claim 1, wherein: The positioning mechanism (9) comprises a connecting rod (91), the outer side of the cutter seat (7) is fixedly connected with the connecting rod (91), the outer side of the connecting rod (91) is slidably sleeved with a connecting sleeve (92), the bottom of the connecting sleeve (92) is fixedly connected with a positioning block (93), the inside of the connecting rod (91) is slidably sleeved with a fixing rod (94), the fixing rod (94) is fixedly connected with the connecting sleeve (92), the outer side of the fixing rod (94) is provided with a second spring (95), the outer side of the connecting rod (91) is fixedly connected with a guide block (96), and the guide block (96) is slidably connected with the connecting sleeve (92).
6. The apparatus of claim 5, wherein: One end of the second spring (95) is fixedly connected with the connecting rod (91), and the other end of the second spring (95) is fixedly connected with the connecting sleeve (92).
7. The apparatus of claim 5, wherein: The inside of the connecting sleeve (92) is provided with a guide groove (97), and the guide groove (97) is slidably connected with the guide block (96).
Citation Information
Patent Citations
A cutting machine for producing biodegradable and environmentally friendly plastic bags
CN220994682U