Waste discharge device for die-cutting machine

Abstract

The utility model discloses a waste discharge device for a die-cutting machine, which belongs to the technical field of die-cutting machines, and comprises an outer cylinder, a rotary inner cavity, a waste discharge device and a waste discharge device, the inner cylinder is located in the mounting inner cavity, and a movable gap is formed between the outer wall surface of the outer cylinder and the peripheral wall surface of the mounting inner cavity; the connecting shaft assembly comprises an eccentric shaft, the outer barrel is rotatably arranged on the eccentric shaft and has a first rotating direction and a second rotating direction relative to the inner barrel, when the outer barrel rotates in the first rotating direction or the second rotating direction, the moving gap is changed, and by continuously rotating the outer barrel, the outer barrel can rotate in the first rotating direction or the second rotating direction. And the movable gap between the outer cylinder and the inner cylinder is continuously changed, so that waste materials with different sizes can pass through, the waste material residual probability is small, the waste discharge efficiency is improved, and good product experience is provided for users.

Description

Technical Field

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

[0002] In modern industrial production, die-cutting technology is widely used in packaging, labeling, electronics, printing, and many other fields. Die-cutting machines cut materials into predetermined shapes to achieve product formation. However, waste disposal during the die-cutting process has always been a key factor affecting production efficiency and product quality.

[0003] In related technologies, waste removal devices include waste removal rollers and drive components (such as pneumatic or electric drive components). The drive components (such as pneumatic or electric drive components) assist the waste removal rollers and other components in waste removal. However, the shape and size of the waste are irregular, and the waste removal rollers may not be able to effectively grab the waste, resulting in waste residue, affecting waste removal efficiency, and increasing maintenance costs. Utility Model Content

[0004] To overcome the technical problem in the existing technology where the waste discharge roller cannot effectively grab waste material, resulting in waste residue and affecting waste discharge efficiency, this utility model provides a waste discharge device for a die-cutting machine, comprising: an outer cylinder having an installation cavity, the rotating cavity being through the front and rear; an inner cylinder located in the installation cavity, the outer wall surface of the outer cylinder having a movable gap with the peripheral wall surface of the installation cavity; and a connecting shaft assembly including an eccentric shaft, the outer cylinder being rotatably disposed on the eccentric shaft and having a first rotation direction and a second rotation direction relative to the inner cylinder, the movable gap changing when the outer cylinder rotates along the first rotation direction or the second rotation direction.

[0005] Furthermore, the eccentric shaft has an eccentric tip, which has a radial displacement in its horizontal direction from the rotation center line of the outer cylinder.

[0006] Furthermore, the connecting shaft assembly also includes a rotating shaft for connecting the rear ends of the outer cylinder and the inner cylinder.

[0007] Furthermore, the rotation axis overlaps with the rotation center line on its horizontally upward center line.

[0008] Furthermore, the eccentric shaft has a first connecting section and a second connecting section fixedly connected to the first connecting section. The first connecting section passes through and is fixed in the outer cylinder and is connected to the inner cylinder. The second connecting section is located at the end of the outer cylinder away from the mounting cavity.

[0009] Furthermore, the connecting shaft assembly also includes a connecting shaft, the inner cylinder has a cavity, the connecting shaft is fitted into the cavity, and the two ends of the connecting shaft are fixedly connected to the eccentric shaft and the rotating shaft.

[0010] Furthermore, the first connecting segment has the eccentric tip, one end of the connecting shaft has a mounting groove, and the eccentric tip is located in the mounting groove.

[0011] Furthermore, the outer cylinder has a fixing strip at the other end away from the mounting cavity, the fixing strip has a fixing cavity, the rotating shaft passes through and is fixed in the fixing cavity, and the rotating shaft is fixedly connected to the other end of the connecting shaft.

[0012] Furthermore, the inner wall surface of the outer cylinder has a non-circular profile.

[0013] Beneficial effects:

[0014] The beneficial effects of adopting the technical solution of this utility model are as follows:

[0015] The inner cylinder is installed within the mounting cavity of the outer cylinder, and the outer cylinder and inner cylinder are connected by a connecting shaft assembly. The outer cylinder and inner cylinder are always coaxially aligned. At this time, there is a play between the outer wall surface of the inner cylinder and the inner wall surface of the outer cylinder. The outer cylinder is rotatably mounted on the eccentric shaft and has a first rotation direction and a second rotation direction relative to the inner cylinder. The outer cylinder always rotates eccentrically around its own rotation centerline. When the outer cylinder rotates along the first rotation direction (e.g., clockwise), the eccentric shaft drives the outer cylinder to perform eccentric motion around its own rotation centerline. The horizontal centerline of the outer cylinder is relative to the inner cylinder. The cylinder's centerline in the horizontal direction is radially offset, causing the clearance to decrease in the eccentric direction and increase in the opposite direction. When the outer cylinder rotates along the second rotation direction (e.g., counterclockwise), the eccentric shaft drives the outer cylinder to make eccentric motion around its own rotation centerline, causing the outer cylinder to offset in the opposite direction. The clearance increases in the eccentric direction and decreases in the opposite direction. Through the change in the clearance, the connecting shaft assembly can grab waste materials of different sizes and shapes, effectively discharge waste materials, reduce waste material residue, and minimize wear between them, thus avoiding the technical defects of existing technologies that cannot effectively grab waste materials. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a waste removal device for a die-cutting machine according to this utility model;

[0018] Figure 2 This is a utility model Figure 1 A cross-sectional view along the AA direction;

[0019] Figure 3 This is a utility model Figure 2 A magnified view of part A in the image;

[0020] Figure 4 This is a schematic diagram of the connection structure between the connecting shaft and the rotating shaft of a waste removal device for a die-cutting machine according to this utility model;

[0021] Figure 5 This is a utility model Figure 4 Cross-sectional view along the BB direction;

[0022] Figure 6 This is a schematic diagram of the structure of an eccentric shaft for a waste removal device used in a die-cutting machine according to this utility model.

[0023] Explanation of the reference numerals in the figure:

[0024] 101. Rotation center line; 1. Outer cylinder; 11. Mounting inner cavity; 12. Fixing strip; 121. Fixing cavity; 2. Inner cylinder; 21. Cavity; 3. Connecting shaft assembly; 31. Eccentric shaft; 311. First connecting section; 3111. Eccentric center; 312. Second connecting section; 32. Rotating shaft; 33. Connecting shaft; 331. Mounting groove; 4. Movement clearance; 5. Radial displacement. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] Please refer to Figures 1 to 6A waste removal device for a die-cutting machine includes: an outer cylinder 1 having an inner mounting cavity 11, the inner mounting cavity 11 being through the front and rear; an inner cylinder 2 located in the inner mounting cavity 11, the outer wall surface of the outer cylinder 1 having a movable gap 4 with the peripheral wall surface of the inner mounting cavity 11; and a connecting shaft assembly 3 including an eccentric shaft 31, the outer cylinder 1 being rotatably mounted on the eccentric shaft 31 and having a first rotation direction and a second rotation direction relative to the inner cylinder 2, the movable gap 4 changing when the outer cylinder 1 rotates along the first rotation direction or the second rotation direction.

[0027] In this technical solution, the inner cylinder 2 is installed in the mounting cavity 11 of the outer cylinder 1. The outer cylinder 1 and the inner cylinder 2 are connected by a connecting shaft assembly 3. The outer cylinder 1 and the inner cylinder 2 are always coaxially arranged. At this time, there is a movable gap 4 between the outer wall surface of the inner cylinder 2 and the inner wall surface of the outer cylinder 1. The outer cylinder 1 is rotatably mounted on the eccentric shaft 31 and has a first rotation direction and a second rotation direction relative to the inner cylinder 2. The outer cylinder 1 always rotates eccentrically around its own rotation center line. When the outer cylinder 1 rotates along the first rotation direction (e.g., clockwise), the eccentric shaft 31 drives the outer cylinder 1 to perform eccentric motion around its own rotation center line. The outer cylinder 1 is in a horizontal position. The upward centerline is radially offset relative to the horizontal centerline of the inner cylinder 2, causing the movable gap 4 to decrease in the eccentric direction and increase in the opposite eccentric direction. When the outer cylinder 1 rotates along the second rotation direction (e.g., counterclockwise), the eccentric shaft 31 drives the outer cylinder 1 to make eccentric motion around its own rotation centerline, causing the outer cylinder 1 to deflect in the opposite direction. The movable gap 4 increases in the eccentric direction and decreases in the opposite eccentric direction. Through the change in the movable gap 4, the connecting shaft assembly 3 can grab waste materials of different sizes and shapes, effectively discharge waste materials, reduce waste material residue, and minimize wear between them, avoiding the technical defects of the prior art that cannot effectively grab waste materials. Preferably, the inner wall surface of the outer cylinder 1 has a non-circular profile, which includes one of ellipse, oval, or polygonal shapes. The inner cylinder 2 is installed in the mounting cavity 11, and there is a movable gap 4 between it and the inner wall surface of the outer cylinder 1. The movable gap 4 changes with the rotation of the outer cylinder 1.

[0028] Specifically, by Figure 2 and Figure 3As shown, the eccentric shaft 31 has an eccentric tip 3111, which has a radial displacement of 5 in its horizontal direction, offset from the rotation center line 101 of the outer cylinder 1. In this embodiment, the connecting shaft assembly 3 also includes a rotating shaft 32, which is used to connect the rear ends of the outer cylinder 1 and the inner cylinder 2, fixing the outer cylinder 1 and the inner cylinder 2 together. Further, the center line of the rotating shaft 32 in its horizontal direction overlaps with the rotation center line 101, so that the rotating shaft 32 of the connecting shaft assembly 3 can be coaxially set with the outer cylinder 1; and the eccentric shaft 31 of the connecting assembly 3 is coaxially set with the inner cylinder 2 (the "coaxial" refers to the horizontal extension line of the eccentric tip 3111 in its horizontal direction), ensuring that there is a radial offset of 5 between the outer cylinder 1 and the inner cylinder 2. In this embodiment, the radial offset of 5 is 3.2 mm.

[0029] The specific assembly relationship between the eccentric shaft 31 and the outer cylinder 1 and inner cylinder 2 is determined by Figure 2 and Figure 6 As shown, the eccentric shaft 31 has a first connecting section 311 and a second connecting section 312 fixedly connected to the first connecting section 311. The first connecting section 311 passes through and is fixed in the outer cylinder 1 and connects to the inner cylinder 2. The second connecting section 312 is located at the end of the outer cylinder 1 away from the mounting cavity 11. In this embodiment, the first connecting section 311 of the eccentric shaft 31 passes through the outer cylinder 1 and connects to the inner cylinder 2, and the first connecting section 311 is located at the front end of the inner cylinder 2; while the second connecting section 312 of the eccentric shaft 31 is located on the outside of the outer cylinder 1. When the outer cylinder 1 rotates around the eccentric shaft 31 in the first rotation direction, the movable clearance 4 at the top of the device in the horizontal direction is 11.3 mm. When the outer cylinder 1 rotates around the eccentric shaft 31 in the second rotation direction, the movable clearance 4 at the top of the device in the horizontal direction is 4.9 mm. Through the continuous rotation of the outer cylinder 1, the top of the outer cylinder 1 completes the cyclical clearance change relative to the inner cylinder 1. The connecting shaft assembly 3 continuously pushes the waste materials of different sizes and shapes to move, effectively avoiding the residue of waste materials.

[0030] The assembly relationship between the eccentric shaft 31 and the rotating shaft 32 is determined by... Figure 1 and Figure 2As shown, the connecting shaft assembly 3 further includes a connecting shaft 33. The inner cylinder 2 has a cavity 21, and the connecting shaft 33 is fitted into the cavity 21. The two ends of the connecting shaft 33 are fixedly connected to the eccentric shaft 31 and the rotating shaft 32. In this embodiment, the first connecting section 311 has an eccentric tip 3111, and one end of the connecting shaft 33 has a mounting groove 331. The eccentric tip 3111 is located in the mounting groove 331. The first connecting section 311 of the eccentric shaft 31 is fitted into the mounting groove 331, and the eccentric tip 3111 is located in the mounting groove 331, which prevents waste from entering the mounting groove 331 and protects the eccentric tip 3111. The rotating shaft 32 is fixedly installed at the end of the connecting shaft 33 away from the eccentric shaft 31. The eccentric shaft 31 and the rotating shaft 32 are connected to each other. When the outer cylinder 1 rotates relative to the inner cylinder 2, that is, when the rotating shaft 32 rotates relative to the eccentric shaft 31, the structure is stable.

[0031] Furthermore, the specific implementation of the outer cylinder 1 and the rotating shaft 32 is as follows: Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the outer cylinder 1 has a fixing strip 12 at the other end away from the mounting inner cavity 11. The fixing strip 12 has a fixing cavity 121. The rotating shaft 32 passes through and is fixed in the fixing cavity 121. The rotating shaft 32 is fixedly connected to the other end of the connecting shaft 33. The structure is stable, and the outer cylinder 1 rotates stably relative to the inner cylinder 2.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waste removal device for a die cutting machine, characterized in that, include: The outer cylinder (1) has an inner cavity (11) that is through the front and back; the inner cylinder (2) is located in the inner cavity (11), and the outer wall of the outer cylinder (1) has a movable gap (4) with the peripheral wall of the inner cavity (11); the connecting shaft assembly (3) includes an eccentric shaft (31), the outer cylinder (1) is rotatably mounted on the eccentric shaft (31) and has a first rotation direction and a second rotation direction relative to the inner cylinder (2), and the movable gap (4) changes when the outer cylinder (1) rotates along the first rotation direction or the second rotation direction.

2. A waste removal device for a die cutting machine according to claim 1, characterized in that The eccentric shaft (31) has an eccentric tip (3111) which has a radial displacement (5) in its horizontal direction from the rotation center line (101) of the outer cylinder (1).

3. A waste removal device for a die cutting machine according to claim 2, characterized in that The connecting shaft assembly (3) also includes a rotating shaft (32) for connecting the rear ends of the outer cylinder (1) and the inner cylinder (2).

4. A waste removal device for a die cutting machine according to claim 3, wherein The rotation axis (32) overlaps with the rotation center line (101) on its horizontal center line.

5. A waste removal device for a die cutting machine according to claim 3, wherein The eccentric shaft (31) has a first connecting section (311) and a second connecting section (312) fixedly connected to the first connecting section (311). The first connecting section (311) is fixedly inserted in the outer cylinder (1) and connected to the inner cylinder (2). The second connecting section (312) is located at one end of the outer cylinder (1) away from the mounting cavity (11).

6. A waste removal device for a die cutting machine according to claim 5, wherein The connecting shaft assembly (3) further includes a connecting shaft (33). The inner cylinder (2) has a cavity (21). The connecting shaft (33) is matched and installed in the cavity (21). The two ends of the connecting shaft (33) are fixedly connected to the eccentric shaft (31) and the rotating shaft (32).

7. A waste removal device for a die cutting machine according to claim 6, characterized in that The first connecting segment (311) has the eccentric tip (3111), and one end of the connecting shaft (33) has a mounting groove (331), with the eccentric tip (3111) located in the mounting groove (331).

8. A waste removal device for a die cutting machine according to claim 6, characterized in that The outer cylinder (1) has a fixing strip (12) at the other end away from the mounting cavity (11). The fixing strip (12) has a fixing cavity (121). The rotating shaft (32) passes through and is fixed in the fixing cavity (121). The rotating shaft (32) is fixedly connected to the other end of the connecting shaft (33).

9. A waste removal device for a die cutting machine according to any one of claims 1 to 8, characterized in that, The inner wall of the outer cylinder (1) has a non-circular profile.

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