A dust removal device for a circular die-cutting machine

Abstract

This utility model relates to the field of dust removal technology for rotary die-cutting machines, and particularly to a dust removal device for rotary die-cutting machines, comprising: mounting plates and a material strip; two mounting plates are symmetrically fixedly mounted on the feeding side of two machine frame side plates; four L-shaped bases are symmetrically fixedly mounted on the left and right sides of the outer ends of the two mounting plates; the position of the L-shaped bases is adjustable left and right; four columns are symmetrically fixedly connected to the opposite side of two L-shaped bases on the same left and right sides; two L-shaped supports are symmetrically mounted on the four columns on the same left and right sides; two dust removal roller connecting shafts are rotatably mounted on the opposite side of two L-shaped supports on the same upper and lower sides; the two dust removal roller connecting shafts are detachably inserted and fixed to the left and right ends of the dust removal rollers; several layers of adhesive paper are radially arranged from the inside to the outside on the outer wall of the dust removal rollers, and each layer of adhesive paper can be peeled off individually. This utility model provides a dust removal device for rotary die-cutting machines that can remove dust on both sides and adapt to material strips of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology for rotary die-cutting machines, and in particular to a dust removal device for rotary die-cutting machines. Background Technology

[0002] A rotary die-cutting machine, also known as a rotary die-cutting machine, consists of several workstations and several feed and take-up shafts. The plastic film material travels between rubber and metal shafts, and its static electricity attracts dust from the surrounding air and transfers it to the optical tape product, causing a large number of defects. Moreover, these defects cannot be detected or repaired under normal lighting conditions.

[0003] Currently, in the production process, before the material strip enters the rotary die-cutting machine, both sides of the strip are covered with adhesive film to prevent external dust from adhering to it. When entering the rotary die-cutting machine for die-cutting, the adhesive film needs to be removed. The adhesive film material generates strong static electricity when being removed, attracting dust from the surrounding air. This dust adheres to the strip after both sides of the adhesive film have been removed, adversely affecting subsequent production. Furthermore, the particle size of this dust is extremely small and cannot be observed with the naked eye.

[0004] To address the aforementioned problems, dust removal technologies that utilize dust-collecting rollers to adhere dust to the conveyor belt have emerged. However, these technologies have the following drawbacks:

[0005] 1. It is impossible to remove dust from both the top and bottom surfaces of the conveyor belt simultaneously;

[0006] Second, after working for a period of time, a lot of dust adheres to the dust removal roller, which makes it less and less sticky. It is necessary to clean or replace the dust removal roller. When cleaning or replacing, the dust removal roller often needs to be disassembled, which has a certain impact on production efficiency.

[0007] Third, when performing adhesion dust removal on material belts of different widths, it is necessary to replace the entire set of dust removal devices with those adapted to the size of the material belts, which increases production costs. Utility Model Content

[0008] The purpose of this utility model is to provide a dust removal device for a circular die-cutting machine to solve the technical problems existing in the background art.

[0009] To achieve the above objectives, the technical solution of this utility model is as follows:

[0010] A dust removal device for a rotary die-cutting machine includes: a rotary die-cutting machine, the rotary die-cutting machine including: two symmetrically arranged frame side plates, and further including: mounting plates and a material belt. Two mounting plates are provided, and the two mounting plates are symmetrically fixedly installed on the feeding side of the two frame side plates. Four L-shaped bases are symmetrically fixedly installed on the left and right sides of the outer ends of the two mounting plates. The position of the L-shaped bases is adjustable left and right. Four columns are symmetrically fixedly connected to the opposite side of the two L-shaped bases on the same left and right sides. Two L-shaped supports are symmetrically installed on the four columns on the same left and right sides. Two dust removal roller connecting shafts are rotatably installed on the opposite side of the two L-shaped supports on the same upper and lower sides. The two dust removal roller connecting shafts are detachably inserted and fixed to the left and right ends of the dust removal rollers. Several layers of adhesive paper are radially arranged from the inside to the outside on the outer wall of the dust removal rollers. The outer end face of the adhesive paper is the adhesion surface, and each layer of adhesive paper can be peeled off individually. The material belt passes between the two dust removal rollers and presses against the outer end face of the outermost layer of adhesive paper on the dust removal rollers.

[0011] Furthermore, it also includes hexagonal head bolts. Several mounting slots are evenly distributed on both the front and rear sides of the frame side plate. Each mounting slot is semi-circular, and a threaded hole is located in the center of the slot. Two semi-circular protrusions are symmetrically arranged on the left and right sides of the rear end of the mounting plate. These protrusions mate with the mounting slots. Two countersunk holes are symmetrically arranged on the left and right sides of the mounting plate, penetrating the center of each of the two semi-circular protrusions. These countersunk holes are coaxially aligned with two threaded holes at the same horizontal level on the two frame side plates. Four hexagonal head bolts are provided, each passing through one of the four countersunk holes on the two mounting plates and threadedly connected to the four threaded holes at corresponding installation positions on the two frame side plates.

[0012] Furthermore, it also includes: bolt one and nut one, each of which is provided in eights. The mounting plate has two strip holes symmetrically opened on the left and right sides between the two semi-circular protrusions. The vertical part of the L-shaped base has two through holes symmetrically opened on the left and right sides. The eight bolts one are arranged in pairs, sliding from back to front, passing through the four strip holes on the two mounting plates and passing through the eight through holes on the four L-shaped bases respectively, and finally threadedly connected to the front end face of the vertical part of the four L-shaped bases to the eight nuts one. The diameter of the threaded shank of the bolt one is equal to the width of the strip hole.

[0013] Furthermore, reinforcing ribs are welded and fixed between the vertical and horizontal portions of the L-shaped base.

[0014] Furthermore, it also includes: a spring and a nut. The L-shaped support has two symmetrical positioning sliding holes on the front and rear sides of the transverse part. One end of the column is fixedly connected to the L-shaped base. The two columns on the L-shaped base slide vertically through the two positioning sliding holes. The column is fitted with a spring at both ends that press against the L-shaped base and the L-shaped support respectively. The other end of the column is threaded with a nut.

[0015] Furthermore, it also includes: bearings, of which four bearings are provided, and the four L-shaped supports are rotatably connected to the four dust removal roller connecting shafts through the four bearings respectively.

[0016] Furthermore, it also includes: flat keys, of which four are provided. A flat key slot is provided on the outer wall of the dust removal roller connecting shaft on the side away from the bearing. The four flat keys are respectively engaged in the four flat key slots on the four dust removal roller connecting shafts. An axial insertion hole is provided on the dust removal roller. Two flat key slots are symmetrically provided on the left and right sides of the axial insertion hole on the dust removal roller. The four dust removal roller connecting shafts are respectively slidably inserted into the left and right ends of the two axial insertion holes on the two dust removal rollers. The four flat keys are respectively slidably engaged in the four flat key slots on the two dust removal rollers.

[0017] Furthermore, the adhesive paper has a tear that extends from the left end to the right end, and the inner end face of the adhesive paper is a smooth surface. The inner end face of the adhesive paper is bonded to the outer end face of the adhesive paper in the adjacent inner layer.

[0018] Furthermore, the distance between the left and right ends of the adhesive paper is greater than or equal to the width of the material strip, the left end face of the material strip is located to the right of the left end face of the adhesive paper or is flush with the left end face of the adhesive paper, and the right end face of the material strip is located to the left of the right end face of the adhesive paper or is flush with the right end face of the adhesive paper.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] By installing two symmetrically arranged dust removal mechanisms on the feed side of the frame of the rotary die-cutting machine, the material strip passes between the two dust removal rollers. Combined with the adhesive paper on the rollers, dust can be removed from both the top and bottom surfaces of the material strip. Several layers of adhesive paper are sequentially arranged on the dust removal rollers from the inside out, with each layer having a tear point, allowing for easy removal of each layer individually. When the outermost layer of adhesive paper has low stickiness, only that layer needs to be removed, without needing to disassemble the entire dust removal roller. Through the use of a strip-shaped hole with bolts and nuts, when performing adhesion and dust removal on material strips of different widths, only the appropriate width dust removal roller needs to be replaced, without replacing the entire dust removal device, thus reducing production costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a rear-view perspective view of the present invention;

[0023] Figure 3 This is a transverse longitudinal sectional view of the dust removal roller connecting shaft of this utility model;

[0024] Figure 4 This is an installation diagram of this utility model.

[0025] The labels in the attached diagram are as follows: 1-Mounting plate, 101-Semi-circular protrusion, 102-Counterhead hole, 103-Strip hole, 2-Bolt 1, 3-Nut 1, 4-L-shaped base, 5-Reinforcing rib, 6-Column, 7-L-shaped support, 8-Spring, 9-Nut 2, 10-Bearing, 11-Dust collector roller connecting shaft, 12-Flat key, 13-Dust collector roller, 14-Adhesive paper, 1401-Break, 15-Material strip, 16-Frame side plate, 1601-Mounting groove, 1602-Threaded hole. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] See Figures 1-4 As shown, a dust removal device for a rotary die-cutting machine includes: a rotary die-cutting machine, which includes: two symmetrically arranged frame side plates 16, and also includes: mounting plates 1 and a material belt 15. Two mounting plates 1 are provided, and the two mounting plates 1 are symmetrically fixedly installed on the feeding side of the two frame side plates 16. Four L-shaped bases 4 are symmetrically fixedly installed on the left and right sides of the outer ends of the two mounting plates 1. The position of the L-shaped bases 4 is adjustable left and right. Four columns 6 are symmetrically fixedly connected to the opposite side of the two L-shaped bases 4 on the same left and right sides. Two L-shaped supports 7 are symmetrically installed on each column 6. Two dust removal roller connecting shafts 11 are rotatably installed on the two L-shaped supports 7 on the same side. The two dust removal roller connecting shafts 11 are detachably inserted and fixed to the left and right ends of the dust removal roller 13. Several layers of adhesive paper 14 are arranged radially from the inside to the outside on the outer wall of the dust removal roller 13. The outer end face of the adhesive paper 14 is the adhesion surface. Each layer of adhesive paper 14 can be peeled off individually. The material strip 15 passes between the two dust removal rollers 13 and is pressed into contact with the outer end face of the outermost layer of adhesive paper 14 of the dust removal roller 13.

[0028] In this embodiment, it also includes hexagonal head bolts. Several mounting grooves 1601 are evenly provided on the front and rear sides of the frame side plate 16. The mounting grooves 1601 are semi-circular and have threaded holes 1602 in the middle. Two semi-circular protrusions 101 are symmetrically provided on the left and right sides of the rear end of the mounting plate 1. The semi-circular protrusions 101 cooperate with the mounting grooves 1601. Two countersunk holes 102 are symmetrically provided on the left and right sides of the mounting plate 1. The two countersunk holes 102 pass through the middle of the two semi-circular protrusions 101 respectively. The two countersunk holes 102 are coaxially corresponding to the two threaded holes 1602 at the same horizontal height on the two frame side plates 16. Four hexagonal head bolts are provided. The four hexagonal head bolts pass through the four countersunk holes 102 on the two mounting plates 1 and are threaded to the four threaded holes 1602 at the corresponding installation positions on the two frame side plates 16 respectively.

[0029] In this embodiment, it also includes: bolts 2 and nuts 3, with eight bolts 2 and eight nuts 3. The mounting plate 1 has two symmetrical strip holes 103 on the left and right sides between the two semi-circular protrusions 101. The vertical part of the L-shaped base 4 has two symmetrical through holes on the left and right sides. The eight bolts 2 are arranged in pairs and slide from back to front, passing through the four strip holes 103 on the two mounting plates 1 and the eight through holes on the four L-shaped bases 4. Finally, they are threaded to the front end face of the vertical part of the four L-shaped bases 4 and connected to the eight nuts 3. The diameter of the threaded shank of the bolt 2 is equal to the width of the strip hole 103. The bolts 2 and nuts 3 fix the position of the L-shaped base 4. When it is necessary to replace the dust removal roller 13 of different sizes, the nuts 3 are loosened, and the bolts 2 can also slide laterally along the strip hole 103, thereby realizing the synchronous lateral displacement of the L-shaped base 4 and its components, so as to adapt to the installation and fixation of dust removal rollers 13 of different sizes.

[0030] In this embodiment, a reinforcing rib 5 is welded and fixed between the vertical part and the horizontal part of the L-shaped base 4, and the reinforcing rib 5 can improve the strength of the L-shaped base 4.

[0031] In this embodiment, it also includes: spring 8 and nut 9. Two positioning sliding holes are symmetrically opened on the front and rear sides of the horizontal part of the L-shaped support 7. One end of the column 6 is fixedly connected to the L-shaped base 4. The two columns 6 on the L-shaped base 4 slide vertically through the two positioning sliding holes respectively. Spring 8 is sleeved on the column 6, with both ends pressing against the L-shaped base 4 and the L-shaped support 7 respectively. Nut 9 is threadedly connected to the other end of the column 6. The spring 8 can enable the four L-shaped supports 7 to drive the two dust removal rollers 13 to press the upper and lower surfaces of the material strip 15 in opposite directions through the four dust removal roller connecting shafts 11. After the thickness of the adhesive paper 14 on the dust removal rollers 13 changes, the two dust removal rollers 13 can still press the upper and lower surfaces of the material strip 15.

[0032] In this embodiment, it also includes: bearing 10, four bearings 10 are provided, and four L-shaped supports 7 are rotatably connected to four dust removal roller connecting shafts 11 through the four bearings 10 respectively.

[0033] In this embodiment, it also includes: flat keys 12, four of which are provided. Flat key slots are provided on the outer wall of the dust removal roller connecting shaft 11 away from the bearing 10. The four flat keys 12 are respectively engaged in the four flat key slots on the four dust removal roller connecting shafts 11. An axial insertion hole is provided on the dust removal roller 13. Two flat key slots are symmetrically provided on the left and right sides of the axial insertion hole. The four dust removal roller connecting shafts 11 are respectively slidably inserted into the left and right ends of the two axial insertion holes on the two dust removal rollers 13. The four flat keys 12 are respectively slidably engaged in the four flat key slots on the two dust removal rollers 13.

[0034] In this embodiment, the adhesive paper 14 has a tear 1401, which extends from the left end to the right end of the adhesive paper 14. The inner end face of the adhesive paper 14 is a smooth surface, and the inner end face of the adhesive paper 14 is bonded to the outer end face of the adhesive paper 14 of the adjacent inner layer.

[0035] In this embodiment, the distance between the left and right ends of the adhesive paper 14 is greater than or equal to the width of the material strip 15. The left end face of the material strip 15 is located to the right of the left end face of the adhesive paper 14 or is flush with the left end face of the adhesive paper 14. The right end face of the material strip 15 is located to the left of the right end face of the adhesive paper 14 or is flush with the right end face of the adhesive paper 14, ensuring that the upper and lower sides of the material strip 15 can achieve full coverage dust removal.

[0036] When using this device, firstly, two mounting plates 1 are symmetrically fixed on the feed side of the two frame side plates 16 of the circular die-cutting machine using four hexagonal flathead bolts. Then, according to the width of the material strip 15, take out a dust removal roller 13 of the appropriate size and install the two dust removal rollers 13 on the four dust removal roller connecting shafts 11 respectively. Next, tighten the eight nuts 1 3 and rotate the eight nuts 2 9. The four nuts 2 9 on the upper side press against the two L-shaped supports 7 on the upper side, and leave a certain gap between the four nuts 2 9 on the lower side and the two L-shaped supports 7 on the lower side. The size of the gap is equal to the sum of the thickness of several layers of adhesive paper 14 on the two dust removal rollers 13. Then, let the material strip 15 pass through the two dust removal rollers 13 and enter the circular die-cutting machine.

[0037] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made by those skilled in the art to the above embodiments without departing from the scope of the present utility model's technical solution and based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. A dust removal device for a rotary die-cutting machine, comprising: A circular die-cutting machine, comprising: two symmetrically arranged frame side plates (16), characterized in that it further comprises: mounting plates (1) and a material strip (15), wherein there are two mounting plates (1), which are symmetrically fixedly installed on the feeding side of the two frame side plates (16), and four L-shaped bases (4) are symmetrically fixedly installed on the left and right sides of the outer ends of the two mounting plates (1), the position of the L-shaped bases (4) is adjustable left and right, and four columns (6) are symmetrically fixedly connected to the opposite side of the two L-shaped bases (4) on the same left and right sides, and the four columns (6) on the same left and right sides are symmetrically fixedly connected. Two L-shaped supports (7) are installed. The two L-shaped supports (7) on the same side are rotatably installed with two dust removal roller connecting shafts (11) facing each other. The two dust removal roller connecting shafts (11) are respectively detachably inserted and fixed to the left and right ends of the dust removal roller (13). Several layers of adhesive paper (14) are arranged radially from the inside to the outside on the outer wall of the dust removal roller (13). The outer end face of the adhesive paper (14) is the adhesion surface. Each layer of adhesive paper (14) can be peeled off individually. The material strip (15) is inserted between the two dust removal rollers (13) and pressed into contact with the outer end face of the outermost layer of adhesive paper (14) of the dust removal roller (13).

2. The dust removal device for a circular die-cutting machine according to claim 1, characterized in that: It also includes hexagonal head bolts. The frame side plate (16) has several mounting grooves (1601) evenly distributed on both the front and rear sides. Each mounting groove (1601) is semi-circular, and a threaded hole (1602) is provided in the center of each mounting groove (1601). The mounting plate (1) has two symmetrical semi-circular protrusions (101) on the left and right sides of its rear end. These semi-circular protrusions (101) cooperate with the mounting grooves (1601). The mounting plate (1) also has two symmetrical countersunk holes (102) on its left and right sides. 02), two countersunk holes (102) respectively penetrate the middle of two semi-circular protrusions (101), and the two countersunk holes (102) are respectively coaxially corresponding to the two threaded holes (1602) at the same horizontal height on the two frame side plates (16). Four internal hexagon flat head bolts are provided, and the four internal hexagon flat head bolts respectively pass through the four countersunk holes (102) on the two mounting plates (1) and are respectively threaded to the four threaded holes (1602) on the two frame side plates (16) at the corresponding installation positions.

3. The dust removal device for a circular die-cutting machine according to claim 2, characterized in that: Also includes: Eight bolts (2) and eight nuts (3) are provided. The mounting plate (1) has two strip holes (103) symmetrically opened on the left and right sides between the two semi-circular protrusions (101). The vertical part of the L-shaped base (4) has two through holes symmetrically opened on the left and right sides. The eight bolts (2) are slid from back to front through the four strip holes (103) on the two mounting plates (1) and through the eight through holes on the four L-shaped bases (4). Finally, the eight nuts (3) are threadedly connected to the front end face of the vertical part of the four L-shaped bases (4). The diameter of the threaded rod of the bolt (2) is equal to the width of the strip hole (103).

4. The dust removal device for a circular die-cutting machine according to claim 1, characterized in that: The vertical and horizontal portions of the L-shaped base (4) are welded together with reinforcing ribs (5).

5. The dust removal device for a circular die-cutting machine according to claim 1, characterized in that: Also includes: Spring (8) and nut (9) are provided. Two positioning sliding holes are symmetrically opened on the front and rear sides of the horizontal part of the L-shaped support (7). One end of the column (6) is fixedly connected to the L-shaped base (4). The two columns (6) on the L-shaped base (4) slide vertically through the two positioning sliding holes respectively. Spring (8) with both ends pressing against the L-shaped base (4) and L-shaped support (7) is sleeved on the column (6). Nut (9) is threadedly connected to the other end of the column (6).

6. The dust removal device for a circular die-cutting machine according to claim 1, characterized in that: Also includes: The bearing (10) is provided in four parts, and the four L-shaped supports (7) are rotatably connected to the four dust removal roller connecting shafts (11) through the four bearings (10).

7. The dust removal device for a circular die-cutting machine according to claim 1, characterized in that: Also includes: Four flat keys (12) are provided. A flat key slot is provided on the outer wall of the dust removal roller connecting shaft (11) away from the bearing (10). The four flat keys (12) are respectively engaged in the four flat key slots on the four dust removal roller connecting shafts (11). An axial insertion hole is provided on the dust removal roller (13). Two flat key slots are symmetrically provided on the left and right sides of the axial insertion hole on the dust removal roller (13). The four dust removal roller connecting shafts (11) are respectively slidably inserted into the left and right ends of the two axial insertion holes on the two dust removal rollers (13). The four flat keys (12) are respectively slidably engaged in the four flat key slots on the two dust removal rollers (13).

8. The dust removal device for a circular die-cutting machine according to claim 1, characterized in that: The adhesive paper (14) has a tear (1401) extending from the left end to the right end. The inner end face of the adhesive paper (14) is smooth. The inner end face of the adhesive paper (14) is bonded to the outer end face of the adhesive paper (14) adjacent to it.

9. A dust removal device for a circular die-cutting machine according to claim 8, characterized in that: The distance between the left and right ends of the adhesive paper (14) is greater than or equal to the width of the strip (15). The left end face of the strip (15) is located to the right of the left end face of the adhesive paper (14) or is flush with the left end face of the adhesive paper (14). The right end face of the strip (15) is located to the left of the right end face of the adhesive paper (14) or is flush with the right end face of the adhesive paper (14).

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