Flexible positioning device of die-cutting machine

Abstract

The utility model discloses a flexible positioning device of a die-cutting machine, which comprises a fixing block used for fixing card paper and an elastic steel sheet used for being arranged opposite to the fixing block, the elastic steel sheet comprises a main body and a push rod, and the push rod is arranged on one face, facing the fixing block, of the main body and is parallel to the fixing block. The push rod and the main body are connected only through an outer connecting part, and the distance between the push rod and the fixing block is smaller than the distance between the elastic steel sheet and the fixing block. The two opposite sides, facing the fixing block and the elastic steel sheet, of the paperboard are the front side and the rear side respectively, the outer connecting part is arranged at the left end of the push rod, an extending part is arranged at the right end of the push rod, and a blocking part located on the side, facing the fixing block, of the extending part is arranged on the body. According to the utility model, the push rod can swing in the direction away from the fixed plate around the outer connecting part after being in contact with the bulge on the card paper, so that the card paper is tightly attached to the solid block as far as possible, the card paper cannot be pushed to deform, and the yield of the card paper is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of die-cutting machines, and particularly relates to a flexible positioning device for a die-cutting machine. Background Art

[0002] A die-cutting machine is an important device for post-printing packaging processing and forming. The die-cutting machine applies a certain pressure through a steel knife, a metal mold, a steel wire (or a template engraved from a steel plate) and an impression plate to cut the printed matter or cardboard into the required shape.

[0003] The positioning pusher is an important component in the die-cutting machine. As Figure 1 shown, when the existing die-cutting machine positions the cardboard 1, the positioning pusher uses a hard steel sheet 3. After the cardboard 1 arrives in place each time, the positioning pusher pushes one side of the cardboard 1 and pushes the cardboard 1 towards the fixed block 2, so that the other side of the cardboard 1 is closely attached to the fixed block 2 to achieve the positioning purpose.

[0004] However, the cardboard itself is easily affected by temperature and humidity. When it reaches the die-cutting process from the previous process, the external dimensions of the cardboard will change to a certain extent, making the side wall of the cardboard no longer flat. As a result, after the positioning pusher pushes the cardboard, either the cardboard is not closely attached to the fixed block and there is a little gap, or the positioning pusher deforms the cardboard, resulting in defective products. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a flexible positioning device for a die-cutting machine, which can make the push rod swing away from the fixed plate around the outer connecting part after contacting the protrusion on the cardboard, so that the cardboard can be as closely attached to the solid block as possible and the cardboard will not be deformed by pushing, ensuring the qualified rate of the cardboard.

[0006] To solve the above technical problems, the utility model adopts the following scheme:

[0007] A flexible positioning device for a die-cutting machine includes a fixed block for fixing the cardboard, and further includes an elastic steel sheet arranged opposite to the fixed block. The elastic steel sheet includes a main body and at least one push rod arranged parallel to the fixed block on the surface of the main body facing the fixed block. The push rod is connected to the main body through an outer connecting part, and the distance between the push rod and the fixed block is less than the distance between the elastic steel sheet and the fixed block. The elastic steel sheet is made of high-strength manganese steel sheet. How to drive the elastic steel sheet to move towards the fixed block is the prior art and will not be elaborated. Its function is that by using the elastic steel sheet, the push rod can swing away from the fixed plate around the outer connecting part after contacting the protrusion on the cardboard, so that the cardboard can be as closely attached to the solid block as possible and the cardboard will not be deformed by pushing, ensuring the qualified rate of the cardboard.

[0008] Further, with the relative two sides of the cardboard facing the fixing block and the elastic steel sheet being the front and the rear respectively, the outer connecting portion is provided at the left end of the push rod, an extension portion is provided at the right end of the push rod, and a blocking portion is provided on the main body on the side of the extension portion facing the fixing block. At least two push rods are evenly arranged in the left-right direction of the main body. Its function is that after the push rod is swung away from the fixing block by the protrusion on the cardboard, when the push rod leaves the cardboard, there will be a rebounding action. Through the arrangement of the extension portion and the blocking portion, it can be avoided that the rebound amount of the push rod is too large and hits the cardboard.

[0009] Further, the length of the outer connecting portion in the left-right direction is less than the length of the push rod in the left-right direction. Its function is that through the design of the size of the outer connecting portion, the push rod can swing smoothly around the outer connecting portion.

[0010] Further, the push rod includes an inner rod and an outer rod. The inner rod is connected to the outer connecting portion. The outer rod is located between the inner rod and the fixing portion. The inner rod and the outer rod are connected only through one inner connecting portion, and the inner connecting portion is located at the right end of the outer rod. Its function is that through the design of the spatial structure with the outer connecting portion and the inner connecting portion respectively arranged on the left and right sides of the inner rod, the inner rod and the outer rod can swing in different directions, so that the swinging space can be increased as much as possible within a limited space.

[0011] Further, the length of the inner connecting portion in the left-right direction is less than the length of the outer rod in the left-right direction. Its function is that through the design of the size of the inner connecting portion, the outer rod can swing smoothly around the inner connecting portion.

[0012] Further, the extension portion is connected to the right side of the inner rod, and the inner connecting portion is located on the right side of the inner rod. Its function is that through the design of the spatial structure with the outer connecting portion and the extension portion respectively arranged on the left and right sides of the inner rod, it can play a limiting role on the left and right ends of the inner rod.

[0013] Further, a first gap is left between the push rod and the main body, and the first gap is arranged parallel to the fixing block.

[0014] Further, a second gap is left between the inner rod and the outer rod, and the second gap is arranged parallel to the fixing block.

[0015] Further, a U-shaped gap is left between the extension portion and the main body.

[0016] Further, the end of the U-shaped gap far from the fixing block is communicated with the first gap.

[0017] The beneficial effects of the present utility model are:

[0018] 1. By adopting an elastic steel sheet, the push rod can swing away from the fixed plate around the outer connecting part after contacting the protrusion on the cardboard, so that the cardboard can be as closely attached to the solid block as possible without deforming the cardboard, ensuring the yield rate of the cardboard.

[0019] 2. Since the push rod swings away from the fixed block after being pushed by the protrusion on the cardboard, when the push rod leaves the cardboard, it will have a rebounding action. Through the setting of the extension part and the blocking part, it can prevent the push rod from rebounding too much and hitting the cardboard.

[0020] 3. Through the design of the spatial structure in which the outer connecting part and the inner connecting part are respectively arranged on the left and right sides of the inner rod, the inner rod and the outer rod can swing in different directions, so as to increase the swinging space as much as possible in a limited space. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the positioning device of the die-cutting machine in the prior art;

[0022] Figure 2 It is a schematic structural diagram of Embodiment 1;

[0023] Figure 3 For Figure 1 The enlarged structural diagram at A in

[0024] Reference numerals: 1, cardboard; 2, fixed block; 3, hard steel sheet; 4, elastic steel sheet; 41, main body; 42, push rod; 5, outer connecting part; 6, extension part; 7, blocking part; 8, inner rod; 9, outer rod; 10, inner connecting part; 11, first gap; 12, second gap; 13, U-shaped gap. Detailed Embodiments

[0025] The following combines the embodiments and the drawings to make a further detailed description of the present invention, but the implementation manners of the present invention are not limited thereto.

[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0027] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "arranged", "provided with", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Embodiment 1

[0029] A flexible positioning device for a die-cutting machine, as Figure 2 shown, includes a fixing block 2 for fixing the cardboard 1, and further includes an elastic steel sheet 4 arranged opposite to the fixing block 2. The elastic steel sheet 4 includes a main body 41 and at least one push rod 42 arranged parallel to the fixing block 2 on the surface of the main body 41 facing the fixing block 2. The push rod 42 is connected to the main body 41 only through an outer connecting portion 5. The distance between the push rod 42 and the fixing block 2 is less than the distance between the elastic steel sheet 4 and the fixing block 2. The elastic steel sheet 4 is made of high-strength manganese steel sheet. Its function is that by using the elastic steel sheet 4, the push rod 42 can swing away from the fixing plate around the outer connecting portion 5 after contacting the protrusion on the cardboard 1, so that the cardboard 1 can be as closely attached to the solid block as possible and the cardboard 1 will not be pushed out of shape, ensuring the yield rate of the cardboard 1.

[0030] Specifically, as Figure 3 shown, with the relative two sides of the cardboard 1 facing the fixing block 2 and the elastic steel sheet 4 being the front and the rear respectively, the outer connecting portion 5 is arranged at the left end of the push rod 42, and an extension portion 6 is arranged at the right end of the push rod 42. A blocking portion 7 is arranged on the main body 41 on the side of the extension portion 6 facing the fixing block 2. Its function is that after the push rod 42 swings away from the fixing block 2 due to the protrusion on the cardboard 1 and then leaves the cardboard 1, there will be a rebounding action. By arranging the extension portion 6 and the blocking portion 7, it can prevent the push rod 42 from rebounding too much and hitting the cardboard 1.

[0031] Specifically, as Figure 3 shown, the length of the outer connecting portion 5 in the left-right direction is less than the length of the push rod 42 in the left-right direction. Its function is that through the design of the size of the outer connecting portion 5, the push rod 42 can swing smoothly around the outer connecting portion 5.

[0032] Specifically, as Figure 3As shown, the push rod 42 includes an inner rod 8 and an outer rod 9. The inner rod 8 is connected to the outer connection part 5. The outer rod 9 is located between the inner rod 8 and the fixed part. The inner rod 8 and the outer rod 9 are connected only through an inner connection part 10, and the inner connection part 10 is located at the right end of the outer rod 9. Its function is that through the design of the spatial structure with the outer connection part 5 and the inner connection part 10 respectively arranged on the left and right sides of the inner rod 8, the inner rod 8 and the outer rod 9 can swing in different directions, so that the swinging space can be increased as much as possible within a limited space.

[0033] Specifically, as Figure 3 shown, the length of the inner connection part 10 in the left-right direction is less than the length of the outer rod 9 in the left-right direction. Its function is that through the design of the size of the inner connection part 10, the outer rod 9 can swing smoothly around the inner connection part 10.

[0034] Specifically, as Figure 3 shown, the extension part 6 is connected to the right side of the inner rod 8, and the inner connection part 10 is located on the right side of the inner rod 8. Its function is that through the design of the spatial structure with the outer connection part 5 and the extension part 6 respectively arranged on the left and right sides of the inner rod 8, the left and right ends of the inner rod 8 can be restricted.

[0035] Specifically, as Figure 3 shown, there is a first gap 11 between the push rod 42 and the main body 41, and the first gap 11 is arranged in parallel with the fixed block 2.

[0036] Specifically, as Figure 3 shown, there is a second gap 12 between the inner rod 8 and the outer rod 9, and the second gap 12 is arranged in parallel with the fixed block 2.

[0037] Specifically, as Figure 3 shown, there is a U-shaped gap 13 between the extension part 6 and the main body 41.

[0038] Specifically, as Figure 3 shown, the end of the U-shaped gap 13 far from the fixed block 2 is communicated with the first gap 11.

[0039] The working principle of this embodiment is described as follows: By replacing the original hard steel sheet 3 with an elastic steel sheet 4 as a positioning push gauge, and at the same time cutting off the parts on the first gap 11, the second gap 12, and the U-shaped gap 13 in the elastic steel sheet 4 to form the inner rod 8, the outer rod 9, the extension part 6, and the blocking part 7, when the elastic steel sheet 4 contacts the protrusion on the cardboard 1, the inner rod 8 and the outer rod 9 can swing away from the fixed block 2, so that the elastic steel sheet 4 can push the cardboard 1 to fit on the fixed block 2 and avoid damaging the cardboard 1.

[0040] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Based on the technical essence of the present utility model, any simple modifications, equivalent replacements, and improvements made to the above embodiments within the spirit and principle of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A flexible positioning device for a die-cutting machine, comprising a fixing block (2) for fixing a paperboard (1), characterized in that: It also includes an elastic steel sheet (4) for being arranged opposite to the fixed block (2), the elastic steel sheet (4) including a main body (41) and at least one push rod (42) located on a surface of the main body (41) facing the fixed block (2) and arranged parallel to the fixed block (2), the push rod (42) and the main body (41) being connected via an external connecting portion (5), and the distance between the push rod (42) and the fixed block (2) being smaller than the distance between the elastic steel sheet (4) and the fixed block (2).

2. A flexible positioning device for a die-cutting machine according to claim 1, characterized in that: With the cardboard (1) facing the fixed block (2) and the two opposite sides of the elastic steel sheet (4) being the front and the rear respectively, the external connection part (5) is arranged at the left end of the push rod (42), the right end of the push rod (42) is provided with an extension part (6), and the main body (41) is provided with a blocking part (7) located on the side of the extension part (6) facing the fixed block (2).

3. A flexible positioning device for a die-cutting machine according to claim 2, characterized in that: The length of the outer connecting portion (5) in the left-right direction is smaller than the length of the push rod (42) in the left-right direction.

4. A flexible positioning device for a die-cutting machine according to claim 3, characterized in that: The push rod (42) comprises an inner rod (8) and an outer rod (9), wherein the inner rod (8) is connected to the outer connecting portion (5), and the outer rod (9) is located between the inner rod (8) and the fixing portion. The inner rod (8) and the outer rod (9) are connected only by an inner connecting portion (10), and the inner connecting portion (10) is located at the right end of the outer rod (9).

5. A flexible positioning device for a die-cutting machine according to claim 4, characterized in that: The length of the inner connecting portion (10) in the left-right direction is smaller than the length of the outer rod (9) in the left-right direction.

6. A flexible positioning device for a die-cutting machine according to claim 4, characterized in that: The extension portion (6) is connected to the right side of the inner rod (8), and the inner connection portion (10) is located on the right side of the inner rod (8).

7. A flexible positioning device for a die-cutting machine according to claim 2, characterized in that: A first gap (11) is left between the push rod (42) and the main body (41), and the first gap (11) is arranged parallel to the fixing block (2).

8. The flexible positioning device for a die-cutting machine according to claim 4, characterized in that: A second gap (12) is left between the inner rod (8) and the outer rod (9), and the second gap (12) is arranged parallel to the fixing block (2).

9. A flexible positioning device for a die-cutting machine according to claim 7, characterized in that: A U-shaped gap (13) is left between the extension portion (6) and the main body (41).

10. A flexible positioning device for a die-cutting machine according to claim 9, characterized in that: One end of the U-shaped gap (13) away from the fixing block (2) is connected to the first gap (11).

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