Plastic woven bag blanking mechanism capable of adjusting size of blanking hole

Abstract

The utility model discloses a plastic woven bag blanking mechanism capable of adjusting the size of a blanking hole, which belongs to the technical field of woven bag processing and comprises a first punching table and a second punching table, the second punching table is arranged on one side of the first punching table, and a lifting base plate is arranged below the first punching table and the second punching table. Punching adjustable mechanisms are arranged above the first punching table and the second punching table, each punching adjustable mechanism comprises a multi-section punching air cylinder and a circular table punching head, and the two sets of multi-section punching air cylinders are arranged above the first punching table and the second punching table correspondingly. According to the plastic woven bag punching device, through the arrangement of the punching adjustable mechanism, the two multi-section punching air cylinders drive the circular truncated cone punching head to conduct punching treatment on a plastic woven bag with the straightened upper end opening of the circular truncated cone punching groove, and the diameter width of the circular truncated cone punching head with the opening in the lower end is set from small to large; in this way, the size of the punched hole can be adjusted by controlling the descending height of the circular truncated cone punching head so as to meet application scenes with different hole opening requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of woven bag processing, and in particular relates to a plastic woven bag punching mechanism capable of adjusting the size of a punching hole. Background Art

[0002] Woven bags, also known as snakeskin bags, are a type of plastic bag used for packaging. Their raw materials are generally various chemical plastic raw materials such as polyethylene and polypropylene. At present, the bag mouth of the woven bag is generally processed with through-holes, and the conventional hole opening of the plastic woven bag will use a punching device.

[0003] The existing punching device mainly completes the hole opening process by pressing down the punching head to cut the woven bag, and the size of the punching hole of the plastic woven bag is determined by the punching head. The traditional single-style punching head is not convenient for punching out holes of different sizes. The adjustment of the hole size mainly relies on replacing the punching heads of different sizes. The method of replacing the punching head to adjust the punching hole size is relatively cumbersome, and the downtime waiting time is long. It is also not suitable for the frequent switching of the punching hole size of the plastic woven bag. Utility Model Content

[0004] The utility model aims to provide a plastic woven bag punching mechanism with adjustable punching hole size to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic woven bag punching mechanism with adjustable punching hole size, comprising a first punching platform and a second punching platform, the second punching platform is arranged on one side of the first punching platform, a lifting pad is arranged below the first punching platform and the second punching platform, and an adjustable punching mechanism is arranged above the first punching platform and the second punching platform, the adjustable punching mechanism comprises a multi-section punching cylinder and a round table punching head, two groups of the multi-section punching cylinders are respectively arranged above the first punching platform and the second punching platform, the upper end surfaces of the first punching platform and the second punching platform are both provided with a round table punching groove, the round table punching head is arranged in the round table punching groove, and a distance adjustment mechanism is arranged inside the lifting pad, the distance adjustment mechanism comprises a bidirectional threaded rod, a first slider and a second slider, the bidirectional threaded rod is penetrated inside the lifting pad, the first slider is arranged inside the lifting pad, and the second slider is also arranged inside the lifting pad.

[0006] It should be noted in the scheme that the upper end surfaces of the first punching station and the second punching station are both fixed with lifting arms, the sleeve of the multi-section punching cylinder is fixed at the upper end surface of the lifting arm, and the output end of the multi-section punching cylinder is fixed at the center of the upper end surface of the truncated cone punching head.

[0007] It is further worth mentioning that the first punching station and the second punching station are symmetrically distributed above the raised pad, and the frustum punching head is arranged directly above the frustum punching groove.

[0008] It should be further explained that a distance-adjusting slot is provided on the upper end surface of the lifting pad, and the first sliding block and the second sliding block are both slidably connected in the distance-adjusting slot of the lifting pad.

[0009] As a preferred embodiment, the first slider and the second slider are both threadedly connected to the bidirectional threaded rod, the first slider and the second slider are symmetrically distributed inside the lifting pad, the upper end of the first slider is fixed to the bottom of the first punching table, and the upper end of the second slider is fixed to the bottom of the second punching table.

[0010] As a preferred embodiment, a distance adjusting knob is fixed to one end of the bidirectional threaded rod extending out of the lifting pad, a rotating bearing is fixed to one end surface of the lifting pad, and the end of the bidirectional threaded rod away from the distance adjusting knob is arranged in the rotating bearing.

[0011] As a preferred implementation, a clamping cylinder is fixed to the upper end surface of the lifting pad, and a clamping bracket is fixed to the output end of the clamping cylinder.

[0012] As a preferred embodiment, a non-slip gasket is fixed to the lower end surface of the clamping bracket, and a woven bag positioning port is provided at the lower end of the lifting arm.

[0013] Compared with the prior art, the plastic woven bag punching mechanism with adjustable punching hole size provided by the utility model has at least the following beneficial effects:

[0014] ⑴ Through the set adjustable punching mechanism, two multi-section punching cylinders drive the round table punching head to punch the plastic woven bag that is straightened at the upper end of the round table punching groove. Since the diameter width of the round table punching head with an opening at the lower end is set from small to large, the size of the punching hole can be adjusted by controlling the descending height of the round table punching head to meet application scenarios with different opening requirements.

[0015] ⑵ Through the distance adjustment mechanism, the distance between the first punching station and the second punching station can be adjusted during use, thereby controlling the opening spacing of the symmetrically arranged punching holes on the plastic woven bag to adapt to application scenarios with different hole opening requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a three-dimensional diagram of the overall structure of the plastic woven bag punching mechanism of the utility model with adjustable punching hole size;

[0018] Figure 2 It is a three-dimensional diagram of the bidirectional threaded rod structure of the plastic woven bag punching mechanism with adjustable punching hole size of the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the cross-sectional structure of the first punching station of the plastic woven bag punching mechanism with adjustable punching hole size of the utility model;

[0020] Figure 4 It is a three-dimensional diagram of the anti-slip gasket structure of the plastic woven bag punching mechanism with adjustable punching hole size according to the utility model.

[0021] In the figure: 1. first punching station; 2. second punching station; 3. lifting pad; 4. clamping cylinder; 5. clamping bracket; 6. anti-skid pad; 7. lifting arm; 8. multi-section punching cylinder; 9. round table punching head; 10. round table punching groove; 11. distance adjustment slide groove; 12. two-way threaded rod; 13. distance adjustment knob; 14. first slider; 15. second slider; 16. rotating bearing. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the embodiments.

[0023] See also Figure 1-4 The utility model provides a plastic woven bag punching mechanism with adjustable punching hole size, including a first punching station 1 and a second punching station 2, the second punching station 2 is arranged on one side of the first punching station 1, a lifting pad 3 is arranged below the first punching station 1 and the second punching station 2, and an adjustable punching mechanism is arranged above the first punching station 1 and the second punching station 2, the adjustable punching mechanism includes a multi-section punching cylinder 8 and a round table punching head 9, two groups of multi-section punching cylinders 8 are respectively arranged above the first punching station 1 and the second punching station 2, the upper end surfaces of the first punching station 1 and the second punching station 2 are both provided with round table punching grooves 10, the round table punching head 9 is arranged in the round table punching groove 10, and a distance adjustment mechanism is arranged inside the lifting pad 3, the distance adjustment mechanism includes a bidirectional threaded rod 12, a first slider 14 and a second slider 15, the bidirectional threaded rod 12 is penetrated inside the lifting pad 3, the first slider 14 is arranged inside the lifting pad 3, and the second slider 15 is also arranged inside the lifting pad 3.

[0024] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that the upper end faces of the first punching station 1 and the second punching station 2 are both fixed with a lifting arm 7, the sleeve of the multi-section punching cylinder 8 is fixed at the upper end face of the lifting arm 7, and the output end of the multi-section punching cylinder 8 is fixed at the center of the upper end face of the truncated cone punching head 9.

[0025] Further as Figure 3 As shown, it is worth explaining in detail that the first punching station 1 and the second punching station 2 are symmetrically distributed above the raised pad 3, and the frustum punching head 9 is arranged directly above the frustum punching groove 10.

[0026] This solution has the following working process: before use, the bag mouth of the plastic woven bag enters the woven bag positioning port of the lifting support arm 7, and then the clamping bracket 5 is pressed against the bag mouth of the plastic woven bag under the drive of the clamping cylinder 4, and then the two multi-section stamping cylinders 8 drive the conical punch head 9 to punch the plastic woven bag with the upper end of the conical punching groove 10 stretched straight. Since the diameter width of the conical punch head 9 at the lower end is set from small to large, the size of the punching hole can be adjusted by controlling the descending height of the conical punch head 9 to meet application scenarios with different hole opening requirements.

[0027] According to the above working process, it can be known that: the two multi-section stamping cylinders 8 drive the conical punch head 9 to punch the plastic woven bag with the upper end of the conical punching groove 10 stretched straight. Since the diameter width of the conical punch head 9 with the lower end opening is set from small to large, the size of the punching hole can be adjusted by controlling the descending height of the conical punch head 9 to meet the application scenarios with different hole opening requirements.

[0028] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth explaining in detail that a distance-adjusting slot 11 is provided on the upper end surface of the lifting pad 3 , and the first slider 14 and the second slider 15 are both slidably connected in the distance-adjusting slot 11 of the lifting pad 3 .

[0029] Further as Figure 4 As shown, it is worth mentioning that the first slider 14 and the second slider 15 are both threadedly connected to the bidirectional threaded rod 12, and the first slider 14 and the second slider 15 are symmetrically distributed inside the lifting pad 3. The upper end of the first slider 14 is fixed to the bottom of the first punching station 1, and the upper end of the second slider 15 is fixed to the bottom of the second punching station 2.

[0030] Further as Figure 1As shown, it is worth explaining in detail that the end of the bidirectional threaded rod 12 extending out of the lifting pad 3 is fixed with a distance adjusting knob 13, and one end face of the lifting pad 3 is fixed with a rotating bearing 16, and the end of the bidirectional threaded rod 12 away from the distance adjusting knob 13 is arranged in the rotating bearing 16. During use, the distance adjusting knob 13 is rotated to drive the bidirectional threaded rod 12 to rotate at the rotating bearing 16, and the first slider 14 and the second slider 15 threadedly connected to the bidirectional threaded rod 12 approach or move away from each other, so that the distance between the first punching station 1 and the second punching station 2 can be adjusted, thereby controlling the opening spacing of the punching holes symmetrically arranged on the plastic woven bag to adapt to application scenarios with different hole opening requirements.

[0031] Further as Figure 1 As shown, it is worth explaining in detail that a clamping cylinder 4 is fixed to the upper end surface of the lifting pad 3 , and a clamping bracket 5 is fixed to the output end of the clamping cylinder 4 .

[0032] Further as Figure 1 As shown, it is worth explaining in detail that a non-slip pad 6 is fixed to the lower end surface of the clamping bracket 5, and a woven bag positioning port is provided at the lower end of the lifting arm 7.

[0033] In summary: two multi-section punching cylinders 8 drive the conical punching head 9 to punch the plastic woven bag with the upper end of the conical punching groove 10 stretched straight. Since the diameter width of the conical punching head 9 with an opening at the lower end is set from small to large, the size of the punching hole can be adjusted by controlling the descending height of the conical punching head 9 to meet the application scenarios with different hole opening requirements; during use, the distance between the first punching station 1 and the second punching station 2 can be adjusted, thereby controlling the opening distance of the symmetrically arranged punching holes on the plastic woven bag to adapt to the application scenarios with different hole opening requirements.

[0034] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic woven bag punching mechanism with adjustable punching hole size, comprising a first punching station (1) and a second punching station (2), wherein the second punching station (2) is arranged on one side of the first punching station (1), and characterized in that: A lifting pad (3) is arranged below the first punching platform (1) and the second punching platform (2), and an adjustable punching mechanism is arranged above the first punching platform (1) and the second punching platform (2), and the adjustable punching mechanism comprises a multi-section punching cylinder (8) and a round table punching head (9), and two groups of the multi-section punching cylinder (8) are arranged above the first punching platform (1) and the second punching platform (2), respectively, and the upper end surfaces of the first punching platform (1) and the second punching platform (2) are both A truncated cone punching groove (10) is provided, the truncated cone punching head (9) is arranged in the truncated cone punching groove (10), and a distance adjustment mechanism is arranged inside the lifting pad (3), and the distance adjustment mechanism includes a bidirectional threaded rod (12), a first slider (14) and a second slider (15), the bidirectional threaded rod (12) is passed through the lifting pad (3), the first slider (14) is arranged inside the lifting pad (3), and the second slider (15) is also arranged inside the lifting pad (3).

2. The plastic woven bag punching mechanism with adjustable punching hole size according to claim 1, characterized in that: The upper end surfaces of the first punching platform (1) and the second punching platform (2) are both fixed with a lifting arm (7), the sleeve of the multi-section punching cylinder (8) is fixed at the upper end surface of the lifting arm (7), and the output end of the multi-section punching cylinder (8) is fixed at the center of the upper end surface of the truncated cone punching head (9).

3. The plastic woven bag punching mechanism with adjustable punching hole size according to claim 2, characterized in that: The first punching platform (1) and the second punching platform (2) are symmetrically distributed above the raised pad (3), and the truncated cone punching head (9) is arranged directly above the truncated cone punching groove (10).

4. The plastic woven bag punching mechanism with adjustable punching hole size according to claim 3, characterized in that: The upper end surface of the lifting pad (3) is provided with a distance-adjusting slide groove (11), and the first sliding block (14) and the second sliding block (15) are both slidably connected in the distance-adjusting slide groove (11) of the lifting pad (3).

5. The plastic woven bag punching mechanism with adjustable punching hole size according to claim 4, characterized in that: The first slider (14) and the second slider (15) are both threadedly connected to the bidirectional threaded rod (12); the first slider (14) and the second slider (15) are symmetrically distributed inside the lifting pad (3); the upper end of the first slider (14) is fixed to the bottom of the first punching platform (1), and the upper end of the second slider (15) is fixed to the bottom of the second punching platform (2).

6. The plastic woven bag punching mechanism with adjustable punching hole size according to claim 5, characterized in that: One end of the bidirectional threaded rod (12) extending out of the lifting pad (3) is fixed with a distance adjustment knob (13), one end surface of the lifting pad (3) is fixed with a rotating bearing (16), and one end of the bidirectional threaded rod (12) away from the distance adjustment knob (13) is arranged in the rotating bearing (16).

7. The plastic woven bag punching mechanism with adjustable punching hole size according to claim 6, characterized in that: A clamping cylinder (4) is fixed to the upper end surface of the lifting pad (3), and a clamping bracket (5) is fixed to the output end of the clamping cylinder (4).

8. The plastic woven bag punching mechanism with adjustable punching hole size according to claim 7, characterized in that: The lower end surface of the clamping bracket (5) is fixed with an anti-slip pad (6), and the lower end of the lifting arm (7) is provided with a woven bag positioning opening.

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