A fully automatic bending and punching process for paper cards

Abstract

The present invention discloses a fully automatic bending and punching process for paper cards, which includes the following steps along the material conveying direction: subjecting multiple layers of material to a laminating and pressing process to press out a product pressing line; subjecting the cardboard after the pressing line to a first pre-folding and pressure-maintaining process to complete the glue stripping operation; subjecting the cardboard after the glue stripping to a second pre-folding and pressure-maintaining process to fold the paper card into a closed ring shape; and subjecting the cardboard folded into a closed ring shape to a connecting and cutting process to form a cardboard-shaped product. The present invention provides a fully automatic bending and punching process for paper cards, which realizes laminating and pressing line, two pre-folding and pressure-maintaining processes, gluing, glue stripping, and cutting processes at one time along the material conveying direction. The processes are completed continuously and automatically, saving manpower, effectively improving production efficiency, reducing costs, and enhancing industry competitiveness.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of production and processing of paper card products, and specifically to a fully automatic bending and punching process for paper cards. Background Art

[0002] At present, the charging cable industry has an increasing demand for paper card packaging products with diversified product styles and designs. At the same time, they need to be environmentally friendly and delivered in box shapes. However, the market price is low. In order to control production costs, the die-cutting industry has high production process requirements, which leads to the addition of various auxiliary tools and various optimization processes.

[0003] Currently, the typical paper card production process involves laminating, gluing, creasing, and cutting the semi-finished product on a die-cutting machine. The product is then manually stripped, folded along the crease lines, aligned, and folded into a closed loop, and then held under pressure on the equipment. This completes the entire production process. This type of equipment, supplementing the manual production process, results in low production efficiency and high costs.

[0004] Therefore, the above production process was optimized to increase the degree of automation. The die-cutting machine first performs lamination, gluing, creasing, and cutting to form a semi-finished product. The semi-finished product is then put on the automated production line. A robot peels the film, and a pneumatic cylinder performs two-step pre-bending and creasing in front and behind the two-step pre-bending and creasing line. The cylinder presses and holds the pressure in one step. This production process is too slow, with high equipment costs, and is not competitive in the market. Summary of the Invention

[0005] In order to solve the problems in the prior art that paper card products are produced and processed, the embodiments of the present invention disclose a fully automatic bending and punching processing technology for paper cards, in which the products are first pasted, glued, pressed, cut and formed into semi-finished products on a die-cutting machine, and then put on an automated line, with a robot peeling off the film, a cylinder pre-folding and pressing line in front and behind the two-step pre-folding and pressing line, and the cylinder pressing and holding the pressure are completed in one time. The problems include slow production efficiency, high equipment cost investment and lack of market competitiveness.

[0006] According to one aspect of an embodiment of the present invention, a fully automatic bending and punching process for paper cards is provided, which includes the following steps along the material conveying direction:

[0007] The multi-layer materials are laminated and pressed to produce product pressing lines;

[0008] The first pre-folding and pressure-maintaining process is performed on the cardboard after the crimping line to complete the debonding operation;

[0009] The debonded cardboard is subjected to a second pre-folding and pressure-maintaining process to fold the cardboard into a closed ring;

[0010] The cardboard folded into a closed ring is subjected to a line cutting process to form a cardboard shaped product.

[0011] Furthermore, as a preferred technical solution, the process of laminating and pressing the multi-layer materials specifically includes:

[0012] The first layer of material, the second layer of material and the third layer of material are sequentially laminated by a first pressing die to form a cardboard connection;

[0013] The laminated cardboard is pressed through a concave and convex mold to press out the product pressing line.

[0014] Furthermore, as a preferred technical solution, the first pre-folding and pressure-maintaining process for the paper card after crimping specifically includes:

[0015] Passing the pressed paper through a first pre-folding fixture to pre-fold it at a first angle;

[0016] After the first angle pre-folding is completed, the cardboard is pre-folded at a second angle by a second pre-folding fixture;

[0017] The paper jam that has completed the second angle pre-folding is pre-folded at a third angle by a third pre-folding fixture;

[0018] The pre-folded cardboard after the third angle is completed is subjected to hot glue bonding by a first hot pressing mold;

[0019] The bonded cardboard is passed through the second pressing die to complete the glue stripping operation.

[0020] Furthermore, as a preferred technical solution, the second pre-folding and pressure-maintaining process for the debonded cardboard specifically includes:

[0021] The debonded cardboard is pre-folded at a first angle by a fourth pre-folding fixture;

[0022] After the first angle pre-folding is completed, the cardboard is pre-folded at a second angle by a fifth pre-folding fixture;

[0023] The paper jam that has completed the second angle pre-folding is subjected to a third angle pre-folding by a sixth pre-folding fixture;

[0024] The cardboard that has been pre-folded before the third angle is bonded to the colloid by hot glue through a second hot pressing mold, and is folded into a closed ring.

[0025] Furthermore, as a preferred technical solution, the process of cutting the paperboard stacked into a closed ring into a line specifically includes:

[0026] The cardboard folded into a closed ring is cut into a cardboard shape product by a cutting die;

[0027] The cardboard folded into a closed ring shape is passed through a third pressing die to further press the cardboard to support the cardboard.

[0028] Furthermore, as a preferred technical solution, after completing the line cutting process of the cardboard folded into a closed ring, the following process is performed:

[0029] Passing the cardboard-shaped product through a fourth pressing die;

[0030] The cardboard-shaped product that passes through the fourth pressing mold is peeled off into a single cardboard product by a peeling knife mold.

[0031] Furthermore, as a preferred technical solution, after peeling off a single cardboard product, the following steps are performed:

[0032] Count the individual cardboard products peeled off through the set counting induction module;

[0033] The counted individual cardboard products are delivered through the provided conveying fixture and packaged.

[0034] Furthermore, as a preferred technical solution, before the first pre-folding and pressure-maintaining process is performed on the cardboard after the crimping line, the following process is performed first:

[0035] The cardboard is pre-folded at an angle for the first time by the first bending fixture.

[0036] Furthermore, as a preferred technical solution, before the second pre-folding and pressure-maintaining process is performed on the debonded cardboard, the following process is performed first:

[0037] The cardboard is pre-folded at an angle for the second time by the second bending fixture.

[0038] Furthermore, as a preferred technical solution, the first angle is set to 135 degrees; the second angle is set to 90 degrees; and the third angle is set to 45 degrees.

[0039] Compared with the prior art, the present invention has the following advantages:

[0040] The present invention provides a fully automatic bending and punching process for paper cards, which can realize the laminating and pressing lines, two pre-folding and pressure-maintaining steps, gluing, peeling, and cutting processes at one time along the conveying direction of the material. The processes are completed continuously and automatically, saving manpower, effectively improving production efficiency, reducing costs, and enhancing industry competitiveness.

[0041] The above description is only an overview of the technical solutions of the embodiments of the present invention. In order to more clearly understand the technical means of the embodiments of the present invention, they can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiments of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the drawings. In the drawings:

[0043] Figure 1 A schematic diagram of the process flow of a fully automatic paper card bending and punching process provided by an embodiment of the present invention is shown.

[0044] Figure 2 The present invention provides a schematic flow chart of a first pre-folding and pressure-maintaining process for a paper card after crimping in a fully automatic paper card bending and punching process provided by an embodiment of the present invention.

[0045] Figure 3 The present invention provides a schematic flow chart of a second pre-folding and pressure-maintaining process for a paper card after debonding in a fully automatic paper card bending and punching process provided by an embodiment of the present invention.

[0046] Figure 4 The first part of the structural block diagram of a fully automatic paper card bending and punching process provided by an embodiment of the present invention is shown.

[0047] Figure 5 The second part of the structural block diagram of a fully automatic paper card bending and punching process provided by an embodiment of the present invention is shown.

[0048] Figure 6 A structural block diagram of a first pre-folding and pressure-maintaining process for a paper card after crimping in a fully automatic paper card bending and punching process provided by an embodiment of the present invention is shown.

[0049] Figure 7 A structural block diagram of a second pre-folding and pressure-maintaining process for debonded paperboard in a fully automatic paper card bending and punching process provided by an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0050] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0051] Example 1

[0052] In order to solve the problems in the prior art of paper card products that, during production and processing, the products are first laminated, glued, pressed, cut and semi-finished on a die-cutting machine, and then put on an automated line, with a robot peeling off the film, a cylinder pre-folding and pressing line in two steps in front and behind the cylinder pre-folding and pressing line, and the cylinder pressing and holding the pressure are completed in one step. This leads to low production efficiency, high equipment cost and lack of market competitiveness. The present embodiment discloses a fully automatic bending and punching process for paper cards.

[0053] See also Figure 1 , the figure shows a schematic flow chart of a fully automatic paper card bending and punching process provided by this embodiment.

[0054] See also Figure 4 , the figure shows a structural block diagram of the first part of a fully automatic paper card bending and punching process provided by this embodiment.

[0055] See also Figure 5 , the figure shows a structural block diagram of the second part of a paper card fully automatic bending and punching process provided by this embodiment.

[0056] This embodiment discloses a fully automatic bending and punching process for paper cards. During the implementation process, mold and fixture equipment required for processing paper cards into products are arranged in sequence along the material conveying direction and controlled by a control system, so that all processes can be completed continuously and automatically, saving manpower, effectively improving production efficiency, reducing costs, and enhancing industry competitiveness.

[0057] In this embodiment, a paper card automatic bending and punching process is as follows Figure 1 As shown, the following steps are included along the material conveying direction:

[0058] S10. Perform a laminating and pressing process on the multi-layer materials to press out the product pressing line.

[0059] This step specifically includes:

[0060] The first layer of material, the second layer of material and the third layer of material are laminated in sequence through the first pressing die to form a cardboard connection.

[0061] The laminated cardboard is pressed through a concave and convex mold to press out the product pressing line.

[0062] In the implementation process of this step, you can also refer to Figure 4 and Figure 5 As shown, the first layer material 11, the second layer material 12 and the third layer material 13 are pressed in sequence by the first pressing mold 10 to make them fit together as cardboard, and then pressed by the concave-convex mold 20 to press out the product pressing line.

[0063] In this embodiment, the first pressing mold 10 adopts three pressing rollers and is connected to the control system. The operation is controlled by the control system. The convex-concave mold 20 has a matching pressing line punch roller and pressing line die roller. The pressing is to press the connected cardboard through the pressing line punch roller and the pressing line die roller to press out the product pressing line.

[0064] S20. Perform the first pre-folding and pressure-maintaining process on the cardboard after the crimping to complete the glue stripping operation.

[0065] In this step, the cardboard after the crimping is pre-folded mainly by the first pre-folding mold 41, and then the cardboard is kept under pressure to peel off the base paper of the double-sided tape to complete the stripping operation.

[0066] In addition, in this embodiment, the following steps need to be performed before the first pre-folding and pressure-maintaining step is performed on the paper jam after the pressing line:

[0067] The first bending fixture 31 performs a first oblique pre-fold on the paper jam.

[0068] The first bending fixture 31 and the first pre-folding mold 41 are connected to a control system, and their working processes are controlled by the control system.

[0069] S30. Perform a second pre-folding and pressure-maintaining process on the debonded cardboard to fold the cardboard into a closed ring shape.

[0070] In this step, the second pre-folding mold is mainly used to pre-fold the debonded cardboard, and then maintain pressure on it to fold the paper card into a closed ring shape.

[0071] In addition, in this step, before the second pre-folding and pressure-maintaining process is performed on the debonded cardboard, the following process is performed first:

[0072] The second bending fixture 32 performs a second tilt pre-fold on the paper jam.

[0073] The second bending fixture 32 and the second pre-folding mold 42 are connected to a control system, and their working processes are controlled by the control system.

[0074] S40. Performing a line cutting process on the cardboard folded into a closed ring to form a cardboard-shaped product.

[0075] This step specifically includes: cutting the cardboard folded into a closed ring shape by a cutting die to form a cardboard-shaped product.

[0076] In this embodiment, before the paperboard folded into a closed ring is connected and cut into shape, the following steps need to be performed:

[0077] The cardboard folded into a closed ring shape is passed through a third pressing die to further press the cardboard to support the cardboard.

[0078] After the closed ring-shaped cardboard is cut into shape, the following steps need to be performed:

[0079] Finally, the cardboard-shaped product is passed through the fourth pressing die.

[0080] The cardboard-shaped product that passes through the fourth pressing mold is peeled off into a single cardboard product by a peeling knife mold.

[0081] The individual cardboard products peeled off are then counted by the provided counting sensing module.

[0082] Finally, the counted individual cardboard products are delivered through the provided conveying fixture and the packaging is completed.

[0083] See also Figure 5 This step is specifically as follows: using the cutting die 60 to connect and cut the cardboard stacked into a closed ring to form a cardboard-shaped product. The cardboard product after connecting and cutting has higher dimensional accuracy. Then, after passing through the fourth pressing die, the single cardboard product 16 is peeled out by the peeling die 70 and output to the conveying fixture 90. In the process of outputting the single cardboard product 16 to the conveying fixture 90, it is counted by the set counting sensing module 80. Finally, the cardboard product 16 is sent to the packaging box 100 through the conveying fixture 90 to complete the packaging of a fixed quantity.

[0084] In this embodiment, the cutting die 60 , the fourth pressing die, the stripping die 70 , the counting sensor module 80 and the conveying fixture 90 are all connected to a control system, and their working processes are controlled by the control system.

[0085] In addition, when the cutting die 60 is cutting the cardboard folded into a closed ring, the knife die of the cutting die 60 rolls down and cuts the surface of the supported cardboard, half-cutting it into a cardboard-shaped product, and cutting it into shape through the line. The size accuracy of the cardboard product after cutting is higher. After the cardboard is formed, it is kept under pressure by the fourth pressing die, and then a single cardboard product 16 is peeled out by the peeling die 70 and output to the conveying fixture 90. In the process of outputting a single cardboard product 16 to the conveying fixture 90, it is counted by the set counting sensing module 80, and finally the cardboard product 16 is sent to the packaging box 100 by the conveying fixture 90 to complete a fixed number of packaging with higher efficiency.

[0086] The present embodiment provides a fully automatic bending and punching process for paper cards, which realizes the processes of laminating and pressing lines, two pre-folding and pressure-maintaining processes, gluing, peeling, and cutting at one time along the conveying direction of the material. The processes are completed continuously and automatically. Compared with the independent completion of a single process, it has higher precision and is not easily affected by adverse factors such as secondary processing friction. It also saves manpower, effectively improves production efficiency, reduces costs, and enhances industry competitiveness.

[0087] Example 2

[0088] This embodiment discloses a fully automatic bending and punching process for paper cards, which further discloses, based on Example 1, a specific implementation process of performing a first pre-folding and pressure-maintaining step on the paper card after crimping.

[0089] See also Figure 2The figure shows a schematic flow chart of the first pre-folding and pressure-maintaining process for the paper card after the pressing line in a fully automatic paper card bending and punching process provided by this embodiment.

[0090] See also Figure 6 The figure shows a structural block diagram of the first pre-folding and pressure-maintaining process for the paper card after the pressing line in a paper card fully automatic bending and punching process provided by this embodiment.

[0091] In this embodiment, the paper card after the pressing line is subjected to the first pre-folding and pressure-maintaining process, see Figure 2 and Figure 6 As shown, the specific steps include:

[0092] S201. The pressed paper is pre-folded at a first angle by a first pre-folding fixture.

[0093] In this step, the first pre-folding fixture 411 is a 135-degree rear pre-folding fixture, and the first angle is set to 135 degrees, so as to achieve a 135-degree rear pre-folding of the jammed paper after the crimping.

[0094] S202. After the first-angle pre-folding, the paperboard is pre-folded at a second angle by a second pre-folding fixture.

[0095] In this step, the second pre-folding fixture 412 is a 90-degree rear pre-folding fixture, and the second angle is set to 90 degrees, so that the cardboard that has been pre-folded 135 degrees rearward is pre-folded 90 degrees further rearward.

[0096] S203 . The cardboard that has completed the second-angle pre-folding is subjected to a third-angle pre-folding by a third pre-folding fixture.

[0097] In this step, the third pre-folding fixture 413 is a 45-degree rear pre-folding fixture, and the third angle is set to 45 degrees, so that the cardboard that has been pre-folded 90 degrees rearward is pre-folded again by 45 degrees.

[0098] S204: The pre-folded cardboard after the third angle is bonded by hot glue through a first hot pressing mold.

[0099] In this step, the cardboard that has been pre-folded 45 degrees is pressed by the first hot pressing mold 51 to generate temperature for the cardboard to achieve slight adhesion.

[0100] S205: Pass the bonded cardboard through a second pressing die to complete the debonding operation.

[0101] In this embodiment, the first pre-folding fixture 411, the second pre-folding fixture 412, the third pre-folding fixture 413 and the first hot pressing mold 51 are all connected to the control system, and their working process is controlled by the control system; in addition, the first hot pressing mold 51 uses upper and lower hot glue rollers. After completing the third angle, the pre-folded cardboard enters the upper and lower hot glue rollers for pressing, which produces a slight temperature adhesion to the cardboard, and then passes through the pressure-maintaining roller to peel off the double-sided adhesive paper, and the cardboard position is used along the front pressure line crease.

[0102] In this embodiment, before the pressed paper passes through the first pre-folding fixture 411 , the first bending fixture 31 performs a first oblique pre-fold on the paper.

[0103] Therefore, the implementation process of this embodiment is: the cardboard after the pressing line is subjected to the first tilt pre-folding through the first bending fixture 31, and the tilt pre-folding is connected in sequence to the rear pre-folding 135 degree fixture, the rear pre-folding 90 degree fixture, and the rear pre-folding 45 degree fixture to realize the pre-folding from the large pre-folding angle to the small angle of 0, bend, and then connect to the upper and lower hot glue rollers to generate a slight temperature adhesion to the cardboard, pass the pressure roller, and peel off the double-sided tape and the base paper.

[0104] In this embodiment, the pressing line and multiple pre-folding are completed at one time, which has higher precision than a single folding process and is not easily affected by adverse factors such as secondary processing friction. The connecting line passes through the upper and lower hot glue rollers to improve the adhesion between the double-sided tape and the cardboard.

[0105] Example 3

[0106] This embodiment discloses a fully automatic bending and punching process for paper cards, which further discloses, based on Example 1, a specific implementation process of a second pre-folding and pressure-maintaining step for the paper card after debonding.

[0107] See also Figure 3 The figure shows a schematic flow chart of a second pre-folding and pressure-maintaining process for the debonded cardboard in a fully automatic paper card bending and punching process provided by this embodiment.

[0108] See also Figure 7 The figure shows a structural block diagram of the second pre-folding and pressure-maintaining process for the debonded cardboard in a fully automatic paper card bending and punching process provided by this embodiment.

[0109] In this embodiment, the cardboard after debonding is subjected to a second pre-folding and pressure-maintaining process, see Figure 3 and Figure 7 As shown, the specific steps include:

[0110] S301. The debonded cardboard is pre-folded at a first angle by a fourth pre-folding fixture.

[0111] In this step, the fourth pre-folding fixture 421 is a 135-degree front pre-folding fixture, and the first angle is set to 135 degrees, so as to achieve 135-degree front pre-folding of the debonded cardboard.

[0112] S302. After the first-angle pre-folding, the paper jam is pre-folded at a second angle by a fifth pre-folding fixture.

[0113] In this step, the fifth pre-folding clamp 422 is a 90-degree front pre-folding clamp, and the second angle is set to 90 degrees, so that the cardboard that has been pre-folded 135 degrees forward is pre-folded 90 degrees forward again.

[0114] S303: After the second-angle pre-folding, the paper jam is pre-folded at a third angle by a sixth pre-folding fixture.

[0115] In this step, the sixth pre-folding clamp 423 is a 45-degree front pre-folding clamp, and the third angle is set to 45 degrees, so that the cardboard that has been pre-folded 90 degrees forward is pre-folded forward again by 45 degrees.

[0116] S304. After the pre-folding at the third angle is completed, the colloid is bonded to the cardboard through a second hot pressing mold to form a closed ring.

[0117] In this step, the cardboard that has been pre-folded 45 degrees is pressed by the second hot pressing mold 52 to completely fix and bond the double-sided tape to the cardboard and fold it into a closed ring.

[0118] In this embodiment, the fourth pre-folding fixture 421, the fifth pre-folding fixture 422, the sixth pre-folding fixture 423 and the second hot pressing mold 52 are all connected to the control system, and their working process is controlled by the control system; in addition, the second hot pressing mold 52 includes two sets of upper and lower hot glue rollers, which complete the pre-folding of the cardboard at the third angle and then connect it to the upper and lower hot glue rollers for pressing, so that the double-sided tape is completely fixed and bonded to the cardboard, and stacked into a closed ring.

[0119] In this embodiment, before the first angle pre-folding is performed on the debonded paperboard, the second bending fixture 32 performs a second oblique pre-folding on the paperboard.

[0120] Therefore, the implementation process of this embodiment is: the cardboard after debonding is subjected to a second tilt pre-folding through the second bending clamp 32, and the tilt pre-folding is sequentially connected to the front pre-folding 135 degree clamp, the front pre-folding 90 degree clamp, and the front pre-folding 45 degree clamp to realize the pre-folding from a large pre-folding angle to a small angle of 0, bending, and then connecting to two upper and lower hot glue rollers for pressing, thereby improving the bonding strength between the double-sided tape and the cardboard, completely fixing the double-sided tape and the cardboard, folding them into a closed ring, and passing the pressure roller.

[0121] In this embodiment, multiple pre-folds are completed at one time, which has higher precision than a single folding process and is not easily affected by adverse factors such as secondary processing friction. The connecting line passes through the upper and lower hot glue rollers twice to further improve the adhesion between the double-sided tape and the cardboard, and the double-sided tape and the cardboard are completely fixed and bonded, folded into a closed ring, and passed through the pressure-maintaining roller.

[0122] Those skilled in the art will appreciate that the modules in the devices of the embodiments can be adaptively changed and installed in one or more devices different from the embodiments. The modules, units, or components in the embodiments can be combined into one module, unit, or component, and furthermore, they can be divided into multiple submodules, subunits, or subcomponents. Except that at least some of such features and / or processes or units are mutually exclusive.

[0123] It should be noted that the above embodiments illustrate rather than limit the invention, and that alternative embodiments may be devised by a person skilled in the art without departing from the scope of the appended claims. In the claims, any reference signs placed between brackets should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising several different elements and by means of appropriately programmed computers. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments should not be understood as limiting the order of execution unless otherwise specified.

Claims

1. A fully automatic paper card bending and punching process, characterized in that: The following steps are included in the material conveying direction: The first layer of material, the second layer of material and the third layer of material are sequentially laminated by a first laminating die to form a cardboard connection; the laminated cardboard is pressed by a concave-convex die to press out the product pressing line; Performing a first tilt pre-fold on the cardboard by a first bending fixture; The cardboard after the crimping is pre-folded at a first angle by a first pre-folding fixture; the cardboard after the first angle pre-folding is pre-folded at a second angle by a second pre-folding fixture; the cardboard after the second angle pre-folding is pre-folded at a third angle by a third pre-folding fixture; the cardboard after the third angle pre-folding is bonded by hot glue by a first hot pressing mold; the bonded cardboard is passed through a second pressing mold to complete the glue stripping operation; Perform a second tilt pre-fold on the cardboard by using a second bending fixture; The cardboard after the glue is peeled off is pre-folded at a first angle by a fourth pre-folding fixture; the cardboard after the first pre-folding is pre-folded at a second angle by a fifth pre-folding fixture; the cardboard after the second pre-folding is pre-folded at a third angle by a sixth pre-folding fixture; the cardboard after the third pre-folding is pre-folded by hot glue by a second hot pressing mold, so as to fold the paper into a closed ring; The cardboard folded into a closed ring is subjected to a line cutting process to form a cardboard shaped product; Among them, the first angle is set to 135 degrees; the second angle is set to 90 degrees; and the third angle is set to 45 degrees.

2. The fully automatic paper card bending and punching process according to claim 1, characterized in that: The process of cutting the cardboard into a closed ring shape includes: The cardboard folded into a closed ring is cut into a cardboard shape product by a cutting die; The cardboard folded into a closed ring shape is passed through a third pressing die to further press the cardboard.

3. The fully automatic bending and punching process for paper cards according to claim 1, characterized in that: After the cardboard folded into a closed ring is cut into shape, the following steps are performed: Passing the cardboard-shaped product through a fourth pressing die; The cardboard-shaped product that passes through the fourth pressing mold is peeled off into a single cardboard product by a peeling knife mold.

4. The fully automatic paper card bending and punching process according to claim 2, characterized in that: After peeling off the individual cardboard products, the following processes are carried out: The counting induction module is used to count the individual cardboard products that are peeled off; The counted individual cardboard products are delivered through the provided conveying fixture and packaged.

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