A multi-directional punching die and a processing technology thereof

Abstract

The application provides a multi-directional die-cutting die and a processing technology thereof. The die comprises an upper die seat, a middle floating rotary die seat and a lower die seat. The lifting stroke of the rotary die seat matches the pressing stroke of the upper die seat. The rotary die seat is composed of a fixed base, a rotary support shaft, a servo driving unit and two groups of upper and lower symmetrical cutter die sets. The servo driving unit can drive the base to horizontally overturn 180 degrees as a whole, realize the exchange of the die-cutting stations, make the forming cutter die set overturn to the lower side for operation, and the cutter die set is transversely arranged with a first cutter edge and a second cutter edge. The die of the application realizes the exchange of the stations by horizontally overturning the rotary die seat by 180 degrees, can complete the multi-directional step-by-step compound die-cutting of the upper die rubber and the lower die paper stripping, combines the flat cutter rubber cutting shape and the paper cutting shape into one process, adopts the structure of the upper and lower split independent feeding, the rubber belt and the paper stripping are layered and conveyed without interference, cooperates with the multi-directional die-cutting logic of the die overturning, does not need multiple machines for separate operation, and greatly improves the production efficiency.

Description

Technical Field

[0001] This invention relates to the field of die-cutting technology, specifically to a multi-directional punching die and its processing technology. Background Technology

[0002] In traditional die-cutting processes for adhesive materials, the product outline cutting, adhesive layer separation die-cutting, and partial release paper peeling and bonding usually require multiple processes and multiple machines to complete in sequence: first, the outer contour of the product is die-cut separately, then the adhesive layer is die-cut separately, and then the release paper is peeled off manually or by auxiliary machines before bonding and positioning. The overall processing steps are relatively scattered and the production efficiency is not high. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-directional punching die and its process flow to solve the technical problems in the background art.

[0004] To achieve the aforementioned objectives, the present invention provides the following technical solution:

[0005] A multi-directional die-cutting mold includes an upper die base, a rotating die base, and a lower die base. The rotating die base is floatingly positioned at an intermediate station between the upper and lower die bases. The vertical lifting stroke of the rotating die base matches the downward pressing stroke of the upper die base. The rotating die base includes a fixed base, a rotary support shaft, a servo drive unit, and two sets of die-cutting assemblies. The two sets of die-cutting assemblies are respectively installed at the upper and lower ends of the fixed base and are symmetrically positioned. The rotary support shaft is fixedly installed at the center of the fixed base. The servo drive unit is driven by the rotary support shaft to drive the fixed base to horizontally rotate between the upper and lower die bases, realizing the vertical rotation of the station position, so that the die-cutting die-cutting assembly rotates to the lower side. The die-cutting assembly includes a base plate, a first blade, and a second blade, with the first and second blades arranged horizontally above the base plate.

[0006] The first blade has a first top block with an adsorption port inside. The first top block is elastically embedded inside the first blade. The top end face of the first top block is flush with the cutting edge of the first blade. The bottom of the first top block is connected to a compression spring, so that the first top block can be elastically retracted vertically relative to the first blade. The adsorption port is on the top of the first top block.

[0007] The servo drive unit is a servo rotary motor.

[0008] A die-cutting process, employing the aforementioned multi-directional punching die, includes the following processing steps:

[0009] S1. Material preparation: The equipment adopts a split feeding structure. The upper mold side is the conveying path for the main tape material, and the lower mold side is the conveying path for the paper removal material. A first conveying roller mechanism is provided on one side of the upper mold base to convey the main tape material. The main tape material passes through the top of the rotating mold base and is below the upper mold base. A second conveying roller mechanism is provided on one side of the lower mold base to convey the paper removal material. The paper removal material passes through the bottom of the rotating mold base and is above the lower mold base.

[0010] S2. Mold pretreatment: A first pad is provided below the upper mold base. The first pad is located at the first blade edge position on the first die template. The first blade edge is used to punch the shape of the tape main material. A second pad and a third pad are provided above the lower mold base, which correspond to the positions of the first blade edge and the second blade edge on the die assembly, respectively. The height of the second pad is less than that of the third pad, and the shape of the second pad is smaller than that of the tape main material after punching.

[0011] S3. Tape Die Cutting: The upper die base conveys the main tape material to the workstation. The upper die base moves downward and presses down, and the rotatable die base follows the downward press synchronously. Relying on the support of the first blade and the first pad, the main tape material squeezes the first top block inside the first blade, causing the first top block to compress the spring and retract. The first blade protrudes to complete the bare punching and cutting of the tape material. The cut tape material is adsorbed onto the first top block. The second blade has no pad support, and the second blade of the upper die does not perform cutting and forming action in this die closing process.

[0012] S4. Die-cutting station change, upper die set reset, rotating die set independently rises to the middle reference position, then horizontally rotates 180°, so that the first blade of the adsorbed product is flipped downwards, the upper die and rotating die set press down together, the product in the first blade of the flipped die set is attached to the peeling paper, after the attachment is completed, the tape of the upper die and the peeling paper of the lower die each step independently by one jump distance, completing the station switch;

[0013] S5. Paper removal and die cutting: The rotating die base flips over again. With the next round of die cutting, the paper removal after being glued is conveyed to the second blade corresponding to the lower die plate for paper removal shape punching. The third pad supports the area corresponding to the second blade, completing the precise punching of the paper removal shape. The second pad is low in height and avoids cutting action by the first blade of the lower die, completing the bonding and die cutting operation of the tape and paper removal, thus proceeding to the next round of die cutting cycle.

[0014] Compared with the prior art, the present application discloses a multi-directional die-cutting mold and its processing technology. The mold adopts a combination of symmetrically arranged double-knife mold groups and a centrally flipping rotating mold base structure. The workstation can be interchanged by rotating the mold base 180° horizontally. It can complete multi-directional step-by-step composite die-cutting of the upper mold for glue cutting and the lower mold for paper peeling. It combines the glue cutting and paper peeling shapes of the flat knife into one process. It adopts a structure of independent feeding of the upper and lower parts. The tape and paper peeling are transported in layers without interference. With the multi-directional die-cutting logic of mold flipping, there is no need for multiple machines to work separately, and the production efficiency is greatly improved. Attached Figure Description

[0015] Figure 1 : A schematic diagram of the structure of this application;

[0016] Figure 2 :Structural diagram of the rotating mold base;

[0017] Figure 3 : Die-cutting assembly structure diagram;

[0018] Figure 4 : Structural diagram showing the positions of the second and third pad blocks. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] Specific Implementation Example 1: Please refer to Figures 1 to 4 In this embodiment of the invention, a multi-directional die-cutting mold includes an upper die base 1, a rotating die base 3, and a lower die base 2. The rotating die base 3 is floatingly disposed in the middle station between the upper die base 1 and the lower die base 2. The vertical lifting stroke of the rotating die base 3 matches the downward pressing stroke of the upper die base 1. The rotating die base 3 includes a 4, a rotary support shaft 5, a servo drive unit 6, and two sets of die-cutting molds 7. The two sets of die-cutting molds 7 are respectively installed at the upper and lower ends of the 4 and are symmetrically positioned. The rotary support shaft 5 is fixedly installed at the center of the 4. The servo drive unit 6 is driven by the rotary support shaft 5 and drives the 4 to perform horizontal flipping between the upper die base 1 and the lower die base 2, realizing the vertical flipping and switching of the station position, so that the die-cutting molds 7 rotate to the lower side. The servo drive unit 6 is a servo rotary motor.

[0021] The die assembly 7 includes a substrate 703, a first blade 701 and a second blade 702. The first blade 701 and the second blade 702 are arranged horizontally above the substrate 703 and move up and down and rotate 180° synchronously with the substrate 4 to realize bidirectional multi-station alternating punching operations.

[0022] The first blade 701 has a first top block 704 with an adsorption port 704-1 inside. The first top block 704 is elastically embedded inside the first blade 701. The top end face of the first top block 704 is flush with the cutting edge of the first blade 701. The bottom of the first top block 704 is connected to a compression spring 705, which allows the first top block 704 to elastically retract vertically relative to the first blade 701. The adsorption port 704-1 is on the top of the first top block 704. The adsorption port 704-1 is connected to a negative pressure system to achieve vacuum adsorption of the product.

[0023] All blades and top blocks on die assembly 7 are coated with an anti-stick coating to accommodate the bare die-cutting process without cover paper and prevent issues such as sticking, stringing, and adhesive residue buildup.

[0024] A die-cutting process, employing the aforementioned multi-directional punching die, includes the following processing steps:

[0025] S1. Material preparation: The equipment adopts a split feeding structure. The upper mold side is the conveying path for the main tape material A, and the lower mold side is the conveying path for the paper-removing material B. A first conveying roller mechanism 11 is provided on one side of the upper mold base 1 to convey the main tape material A. The main tape material A passes through the top of the rotating mold base 3 and is below the upper mold base 1. A second conveying roller mechanism 12 is provided on one side of the lower mold base 2 to convey the paper-removing material B. The paper-removing material B passes through the bottom of the rotating mold base 3 and is above the lower mold base 2.

[0026] S2. Mold pretreatment: A first pad 8 is provided below the upper mold base 1. The first pad 8 is located at the position of the first blade 701 on the first die template. The first blade 701 is used to punch the shape of the tape main material A. A second pad 9 and a third pad 10 are provided above the lower mold base 2. They correspond to the positions of the first blade 701 and the second blade 702 on the die assembly 7, respectively. The height of the second pad 9 is less than that of the third pad 10, and the shape of the second pad 9 is smaller than that of the tape main material A after punching.

[0027] S3. Tape Die Cutting: The upper die base 1 conveys the main tape material A to the workstation. The upper die base 1 moves downward and presses down, and the rotatable die base 3 follows suit and presses down synchronously. Relying on the support of the first blade 701 and the first pad 8, the main tape material A is squeezed into the first top block 704 inside the first blade 701, causing the first top block 704 to compress the spring 705 and retract. The first blade 701 protrudes to complete the bare punching and cutting of the tape material. The cut tape material is adsorbed onto the first top block 704. The second blade 702 has no pad support, and the second blade 702 of the upper die does not perform cutting and forming action in this die closing process. The main tape material A is bare punched without cover paper.

[0028] S4. Die-cutting station change, upper die base 1 resets, rotating die base 3 independently rises to the middle reference position, servo drive unit 6 drives rotary support shaft 5 to drive 4 to rotate horizontally 180°, so that the first blade 701 adsorbing the product flips downwards, then upper die base 1 presses down again, and the product in the first blade 701 on the flipped die assembly 7 is attached to the paper peeler B. After the attachment is completed, the upper die tape and the lower die paper peeler B each independently step one jump distance to complete the station switch;

[0029] S5. Die-cutting of the adhesive-coated paper B: The rotating die base 3 flips over again. With the next round of die-cutting, the adhesive-coated paper B is conveyed to the second blade 702 corresponding to the lower die plate for punching the shape of the paper B. The third pad 10 supports the area corresponding to the second blade 702, completing the precise punching of the shape of the paper B. The second pad 9 is low in height and avoids cutting, so that the first blade 701 of the lower die does not perform a cutting action, completing the bonding and die-cutting operation of the tape and the paper B, thus proceeding to the next round of die-cutting cycle.

[0030] Compared with the prior art, the present application discloses a multi-directional die-cutting mold and its processing technology. The mold adopts a combination of symmetrically arranged double-knife mold groups and a centrally flipping rotating mold base structure. The workstation can be interchanged by rotating the mold base 180° horizontally. It can complete multi-directional step-by-step composite die-cutting of the upper mold for glue cutting and the lower mold for paper peeling. It combines the glue cutting and paper peeling shapes of the flat knife into one process. It adopts a structure of independent feeding of the upper and lower parts. The tape and paper peeling are transported in layers without interference. With the multi-directional die-cutting logic of mold flipping, there is no need for multiple machines to work separately, and the production efficiency is greatly improved.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-directional punching die, characterized in that: The system includes an upper die base, a rotating die base, and a lower die base. The rotating die base is floatingly positioned at an intermediate station between the upper and lower die bases. The vertical lifting stroke of the rotating die base matches the downward pressing stroke of the upper die base. The rotating die base includes a fixed base, a rotary support shaft, a servo drive unit, and two sets of die-cutting assemblies. The two sets of die-cutting assemblies are respectively installed at the upper and lower ends of the fixed base and are symmetrically positioned. The rotary support shaft is fixedly installed at the center of the fixed base. The servo drive unit is driven by the rotary support shaft to drive the fixed base to horizontally rotate between the upper and lower die bases, realizing the vertical rotation of the workstation and allowing the die-cutting assemblies to rotate to the lower side. Each die-cutting assembly includes a base plate, a first cutting edge, and a second cutting edge, which are arranged horizontally above the base plate.

2. The multi-directional punching die according to claim 1, characterized in that: The first blade has a first top block with an adsorption port inside. The first top block is elastically embedded inside the first blade. The top end face of the first top block is flush with the cutting edge of the first blade. The bottom of the first top block is connected to a compression spring, so that the first top block can be elastically retracted vertically relative to the first blade. The adsorption port is on the top of the first top block.

3. The multi-directional punching die according to claim 2, characterized in that: The servo drive unit is a servo rotary motor.

4. A die-cutting process, employing a multi-directional punching die as described in claim 3, characterized in that: The processing steps include the following: S1. Material preparation: The equipment adopts a split feeding structure. The upper mold side is the conveying path for the main tape material, and the lower mold side is the conveying path for the paper removal material. A first conveying roller mechanism is provided on one side of the upper mold base to convey the main tape material. The main tape material passes through the top of the rotating mold base and is below the upper mold base. A second conveying roller mechanism is provided on one side of the lower mold base to convey the paper removal material. The paper removal material passes through the bottom of the rotating mold base and is above the lower mold base. S2. Mold pretreatment: A first pad is provided below the upper mold base. The first pad is located at the first blade edge position on the first die template. The first blade edge is used to punch the shape of the tape main material. A second pad and a third pad are provided above the lower mold base, which correspond to the positions of the first blade edge and the second blade edge on the die assembly, respectively. The height of the second pad is less than that of the third pad, and the shape of the second pad is smaller than that of the tape main material after punching. S3. Tape Die Cutting: The upper die base conveys the main tape material to the workstation. The upper die base moves downward and presses down, and the rotatable die base follows the downward press synchronously. Relying on the support of the first blade and the first pad, the main tape material squeezes the first top block inside the first blade, causing the first top block to compress the spring and retract. The first blade protrudes to complete the bare punching and cutting of the tape material. The cut tape material is adsorbed onto the first top block. The second blade has no pad support, and the second blade of the upper die does not perform cutting and forming action in this die closing process. S4. Die-cutting station change, upper die set reset, rotating die set independently rises to the middle reference position, then horizontally rotates 180°, so that the first blade of the adsorbed product is flipped downwards, the upper die and rotating die set press down together, the product in the first blade of the flipped die set is attached to the peeling paper, after the attachment is completed, the tape of the upper die and the peeling paper of the lower die each step independently by one jump distance, completing the station switch; S5. Paper removal and die cutting: The rotating die base flips over again. With the next round of die cutting, the paper removal after being glued is conveyed to the second blade corresponding to the lower die plate for paper removal shape punching. The third pad supports the area corresponding to the second blade, completing the precise punching of the paper removal shape. The second pad is low in height and avoids cutting action by the first blade of the lower die, completing the bonding and die cutting operation of the tape and paper removal, thus proceeding to the next round of die cutting cycle.

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