Edge cutting device for valve bag production

Abstract

The utility model relates to the technical field of corner cutting, and aims to solve the problem that an existing edge cutting device is inaccurate in edge cutting. The utility model provides an edge cutting device for valve bag production. The edge cutting device comprises a plate body, a hob, an L-shaped surrounding plate and a limiting assembly. The limiting assembly comprises a roller, a pair of telescopic rods and a limiting seat; the L-shaped coaming is arranged on the plate body in a surrounding manner; the hobbing cutter is in sliding connection with the L-shaped surrounding plate; the limiting base is arranged at the side end, close to the L-shaped surrounding plate, of the plate body. The limiting base extends towards the infrared positioning assembly through the telescopic rod. The infrared positioning assembly is arranged at the end, close to the hob, of the L-shaped surrounding plate. According to the edge cutting device for valve bag production, the accuracy of the size of a diaphragm after edge cutting is improved, and the uniformity of the quality of the valve bag is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of edge cutting, in particular to an edge cutting device for valve bag production. Background Art

[0002] In the production process of valve bags, the plastic film is first cut and trimmed into films of a certain size by a plastic slitting machine, and then the film is folded into the shape of the bag and heat-sealed to finalize the shape. Since the film is relatively thin, it is not easy to fix it during the trimming process, resulting in misalignment of the trimming, which in turn leads to uneven sizes of the bags folded and formed later, or even failure to seal, thereby increasing the scrap rate. As in the prior art, a frame is usually used to mount a circular cutter for direct rolling cutting, such as the patent with publication number CN214139147U, which discloses a trimming mechanism for a bag making and packaging machine. Specifically, the mechanism uses a pair of circular cutters arranged on the frame for trimming. Due to the lack of a limiting and fixing device, there is a problem of not being able to accurately trim the edges.

[0003] Based on the above description, there is an urgent need for a cutting device that can accurately cut the diaphragm for valve bag production. Utility Model Content

[0004] The purpose of the utility model is to provide a trimming device for valve bag production, aiming to solve the technical problem of inaccurate trimming of existing trimming devices.

[0005] The embodiments of the present invention are achieved through the following technical solutions:

[0006] A trimming device for valve bag production, comprising a plate body, a hob, an L-shaped enclosure and a limit assembly; the limit assembly comprises a roller, a pair of telescopic rods and a limit seat; the L-shaped enclosure is arranged around the plate body; the hob is slidably connected to the L-shaped enclosure; the limit seat is arranged at one side end of the plate body (1) close to the L-shaped enclosure; the limit seat extends to an infrared positioning assembly through the telescopic rod; the infrared positioning assembly is arranged at one end of the L-shaped enclosure close to the hob.

[0007] Preferably, the L-shaped enclosure includes a first horizontal plate; the first horizontal plate is provided with a first strip-shaped slide groove; the roller is connected to a telescopic component through a connecting rod; the connecting rod is passed through the first strip-shaped slide groove.

[0008] Preferably, the connecting rod is a threaded rod; the threaded rod passes through the first strip-shaped sliding groove and is fixed by a threaded barrel; the threaded barrel is connected to the telescopic assembly.

[0009] Preferably, the L-shaped enclosure also includes a second longitudinal plate; the limit seat includes a first limit plate, multiple lifting rods and a second connecting plate; the first limit plate is arranged at the end of the plate body opposite to the second longitudinal plate; the first limit plate is connected to the second connecting plate through the lifting rod; the roller is connected to the second connecting plate through the telescopic rod.

[0010] Preferably, the second longitudinal plate is provided with a second strip slide groove near the roller; the infrared positioning assembly includes an infrared rangefinder and a sliding assembly; one end of the infrared rangefinder is connected to the sliding assembly; the other end of the infrared rangefinder passes through the second strip slide groove and extends toward the roller.

[0011] Preferably, the sliding assembly is electrically connected to the telescopic assembly through a control module.

[0012] Preferably, the control module is electrically connected to the lifting rod.

[0013] Preferably, an anti-slip pad is provided on the top of the plate body; the anti-slip pad is lower than the second connecting plate.

[0014] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0015] The utility model extends and retracts the roller through the telescopic rod, thereby smoothing the diaphragm raw material laid on the plate body, and finally stops and presses the roller on one side of the diaphragm raw material to fix the diaphragm raw material; the initial cutting position of the roller is confirmed by the infrared positioning component, and the fixed diaphragm raw material is accurately trimmed; wherein, a right angle is formed between the L-shaped enclosure and the limit seat, which can be combined with the roller to fully limit the end to be cut; the position of the telescopic rod is flexibly adjusted to be used for rolling and limiting diaphragm raw materials of different sizes, thereby improving the accuracy of the size of the diaphragm after trimming, and ensuring the uniformity of the quality of the valve bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 for Figure 1 An enlarged schematic diagram of the local structure A;

[0019] Figure 3 It is a top view of the utility model.

[0020] Icon: 1- plate body, 2- hob, 3- L-shaped enclosure, 31- first horizontal plate, 32- second vertical plate, 4- limit assembly, 41- roller, 42- telescopic rod, 43- limit seat, 5- infrared positioning assembly, 51- infrared rangefinder, 52- sliding assembly, 6- connecting rod, 7- threaded cylinder, 8- telescopic assembly, 9- anti-slip pad, 10- buffer pad. DETAILED DESCRIPTION

[0021] Example 1

[0022] See also Figures 1 to 3 The utility model provides the following technical solutions: a trimming device for valve bag production, which is suitable for precise trimming of valve bags.

[0023] Specifically, if Figure 1 and Figure 2 As shown, a trimming device for valve bag production includes a plate body 1, a hob 2, an L-shaped enclosure 3 and a limit assembly 4; the limit assembly 4 includes a roller 41, a pair of telescopic rods 42 and a limit seat 43; the L-shaped enclosure 3 is arranged around the plate body 1; the hob 2 is slidably connected to the L-shaped enclosure 3; the limit seat 43 is arranged at one side end of the plate body 1 close to the L-shaped enclosure 3; the limit seat 43 extends to the infrared positioning assembly 5 through the telescopic rod 42; the infrared positioning assembly 5 is arranged at one end of the L-shaped enclosure 3 close to the hob 2.

[0024] In this embodiment, the roller 41 is extended and retracted by the telescopic rod 42, and then the diaphragm raw material laid on the plate body 1 is smoothed, and finally the roller 41 is stopped and pressed on one side of the diaphragm raw material to fix the diaphragm raw material; the initial cutting position of the roller 2 is confirmed by the infrared positioning component 5, and the fixed diaphragm raw material is accurately trimmed; wherein, a right angle is formed between the L-shaped enclosure 3 and the limit seat 43, which can be combined with the roller 41 to fully limit the end to be cut; by flexibly adjusting the position of the telescopic rod 42 for rolling and limiting diaphragm raw materials of different sizes, the accuracy of the size of the diaphragm after trimming is improved, and the uniformity of the quality of the valve bag is further guaranteed; in addition, multiple pieces of diaphragm raw materials can be limited and cut, and after cutting one side, the operation is repeated to accurately cut the remaining sides, which is efficient and easy to operate.

[0025] Specifically, if Figure 1 and Figure 2 As shown, the L-shaped enclosure 3 includes a first transverse plate 31, which defines a first strip-shaped slot. The cutter 2 is connected to a telescopic assembly 8 via a connecting rod 6, which passes through the first strip-shaped slot. The connecting rod 6 is a threaded rod that passes through the first strip-shaped slot and is secured by a threaded barrel 7, which is connected to the telescopic assembly 8.

[0026] In this embodiment, a threaded rod is used as the connecting rod 6 so that the position of the hob 2 can be flexibly adjusted according to the irregularities of the edges and corners of the diaphragm raw material; wherein, the telescopic component includes a servo motor and a telescopic rod; the servo motor drives the telescopic rod to reciprocate and extend the hob 2 for cutting edges; in addition, an upper limit distance for the extension and retraction of the hob 2 is left between the telescopic rod 42 and the first horizontal plate 31.

[0027] Specifically, if Figure 1 and Figure 3 As shown, the L-shaped enclosure 3 also includes a second longitudinal plate 32; the limiting seat 43 includes a first limiting plate, multiple lifting rods and a second connecting plate; the first limiting plate is arranged at the end of the plate body 1 opposite to the second longitudinal plate 32; the first limiting plate is connected to the second connecting plate through the lifting rod; the roller 41 is connected to the second connecting plate through the telescopic rod 42.

[0028] In this embodiment, the first limiting plate is higher than the plate body 1, and can form a limiting angle and two limiting edges together with the plate body 1 and the first horizontal plate 31; the second connecting plate is raised and lowered by the lifting rod, thereby facilitating the lifting and lowering of the roller 41, making it easier to take and place the membrane raw material for edge cutting.

[0029] Specifically, if Figure 1 and Figure 2 As shown, the second longitudinal plate 32 is provided with a second strip-shaped chute near the cutter 2. The infrared positioning assembly 5 includes an infrared rangefinder 51 and a sliding assembly 52. ​​One end of the infrared rangefinder 51 is connected to the sliding assembly 52; the other end of the infrared rangefinder 51 passes through the second strip-shaped chute and extends toward the cutter 2. The sliding assembly 52 is electrically connected to the telescopic assembly 8 via a control module. The control module is electrically connected to the lifting rod.

[0030] In this embodiment, the infrared rangefinder 51 includes a receiving module and a transmitting module; wherein the transmitting module is arranged at one end of the first horizontal plate 31 close to the second longitudinal plate 32; the transmitting module and the receiving module are arranged opposite to each other and fixed by a connecting slide; an infrared transmitter is provided at the side end of the connecting slide, and a light beam is emitted to the end of the hob 2 away from the limiting component 4 through the infrared transmitter, and the light beam is blocked by the hob 2 to perform fixed-distance trimming; and the limiting component 4 is provided with a buffer pad 10 facing the hob 2 to prevent the hob 2 from damaging the limiting component 4.

[0031] In this embodiment, the sliding assembly includes a connecting slide and an electric telescopic rod. The electric telescopic rod is extended and retracted through a control module (a single-chip microcomputer or PLC control circuit system commonly used in this field), and then the infrared rangefinder 51 and the infrared emitter are driven to slide to a suitable trimming position at the same time through the connecting slide. The control module further controls the lifting rod to lower the roller 41 to the highest position, and then lowers the lifting rod through an infrared sensing switch electrically connected to the control module. At the same time, the control module starts the telescopic rod 42 to roll the roller 41 a predetermined number of times according to the manually set distance parameters. After the telescopic rod 42 stops, the control module starts the telescopic assembly 8 to slide the roller 2 back and forth for trimming.

[0032] In this embodiment, a non-slip pad 9 is provided on the top of the plate body 1; the non-slip pad 9 is lower than the second connecting plate; and thus can not only play the role of placing the membrane raw material for sliding, but also prevent the plate body 1 from being cut by the roller 2.

[0033] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A trimming device for valve bag production, comprising a plate (1) and a roller (2), characterized in that: The invention comprises an L-shaped enclosure (3) and a limiting assembly (4); the limiting assembly (4) comprises a roller (41), a pair of telescopic rods (42) and a limiting seat (43); the L-shaped enclosure (3) is arranged around the plate body (1); the hob (2) is slidably connected to the L-shaped enclosure (3); the limiting seat (43) is arranged at one side end of the plate body (1) close to the L-shaped enclosure (3); the limiting seat (43) extends to the infrared positioning assembly (5) through the telescopic rod (42); the infrared positioning assembly (5) is arranged at one end of the L-shaped enclosure (3) close to the hob (2).

2. The edge trimming device for valve bag production according to claim 1, characterized in that: The L-shaped enclosure (3) includes a first transverse plate; the first transverse plate is provided with a first strip-shaped sliding groove; the roller (2) is connected to a telescopic component (8) via a connecting rod (6); the connecting rod (6) is passed through the first strip-shaped sliding groove.

3. The edge trimming device for valve bag production according to claim 2, characterized in that: The connecting rod (6) is a threaded rod; the threaded rod passes through the first strip-shaped sliding groove and is fixed by a threaded barrel (7); the threaded barrel (7) is connected to the telescopic assembly (8).

4. The edge trimming device for valve bag production according to claim 2, characterized in that: The L-shaped enclosure (3) further includes a second longitudinal plate (32); the limiting seat (43) includes a first limiting plate, a plurality of lifting rods and a second connecting plate; the first limiting plate is arranged at an end of the plate body (1) opposite to the second longitudinal plate (32); the first limiting plate is connected to the second connecting plate via the lifting rod; and the roller (41) is connected to the second connecting plate via the telescopic rod (42).

5. The edge trimming device for valve bag production according to claim 4, characterized in that: The second longitudinal plate (32) is provided with a second strip-shaped slide groove near the hob (2); the infrared positioning assembly (5) comprises an infrared rangefinder (51) and a sliding assembly (52); one end of the infrared rangefinder (51) is connected to the sliding assembly (52); the other end of the infrared rangefinder (51) passes through the second strip-shaped slide groove and extends toward the hob (2).

6. The edge trimming device for valve bag production according to claim 5, characterized in that: The sliding assembly (52) is electrically connected to the telescopic assembly (8) via a control module.

7. The edge trimming device for valve bag production according to claim 6, characterized in that: The control module is electrically connected to the lifting rod.

8. The edge trimming device for valve bag production according to any one of claims 4 to 5, characterized in that: An anti-slip pad (9) is provided on the top of the plate body (1); the anti-slip pad (9) is lower than the second connecting plate.

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