High-precision card double-sided creasing device

Abstract

The invention discloses a high-precision card double-sided creasing device which is characterized in that the high-precision card double-sided creasing device comprises a front tool apron and a rear tool apron, a front creasing tool is arranged on the front tool apron, a rear creasing tool is arranged on the rear tool apron, the front tool apron is connected with a first lifting driving assembly, and the rear tool apron is connected with a second lifting driving assembly; at least one of the front tool apron and the rear tool apron is connected with the transverse movement driving assembly. During working, the first lifting driving assembly drives the front creasing cutter on the front cutter holder, the second lifting driving assembly drives the rear creasing cutter on the rear cutter holder to alternately ascend at the same creasing height, and the front creasing cutter presses an outer creasing on the outer side face of a card in cooperation with the action of the transverse movement driving assembly; an inner indentation is pressed on the inner surface of the card through the rear indentation cutter, and the inner indentation and the outer indentation are aligned front and back. Internal and external indentation operation can be achieved in one indentation unit, the indentation precision is effectively improved, and it is guaranteed that the internal indentation and the external indentation can be kept aligned.

Description

Technical Field

[0001] The invention relates to packaging equipment, in particular to a high-precision card double-sided indentation device. Background Art

[0002] Card packaging is a new type of packaging for fluid and semi-fluid materials. The materials are filled into formed film or sheet materials. During the production process, the sheet materials are indented, creating creases. To open the package, the sheet materials are simply folded along the creases. The creases are torn open by the force of the tearing action, and the package is then squeezed to release the material through the tear. A Chinese patent document (publication number: CN220448334U; publication date: February 6, 2024) discloses a card packaging machine comprising a sheet unwinding roller and a film unwinding roller. A heating assembly and a thermoforming assembly are sequentially positioned on one side of the film unwinding roller. The card packaging machine is characterized in that an outer indentation assembly and an inner indentation assembly are positioned on one side of the sheet unwinding roller. The inner indentation assembly creates an inner indentation of a shorter length than the crease created by the outer indentation assembly. A three-side sealing assembly is positioned on one side of the inner indentation assembly. A filling assembly, a sealing assembly, a pulling assembly, and a cutting assembly are sequentially positioned at the discharge end of the three-side sealing assembly.

[0003] The defect of the above structure is that its external indentation component and internal indentation component are arranged in sequence. During the production process, the sheet is first pulled to the external indentation component to press out the external indentation, and then pulled to the internal indentation component to press out the internal indentation. In the actual production process, it is found that since the sheet will inevitably deviate up and down during the pulling and moving process, and the width of the internal and external indentations is very small, this will cause the external indentation and the internal indentation to be unable to be aligned, and it is difficult to achieve subsequent folding and tearing open. Summary of the Invention

[0004] In view of the shortcomings of the background technology, the technical problem to be solved by the present invention is to provide a high-precision card double-sided indentation device for solving the above problems.

[0005] For this purpose, the present invention is achieved by adopting the following scheme: A high-precision card double-sided indentation device is characterized in that it includes a front knife seat and a rear knife seat, the front knife seat is provided with a front indentation knife, the rear knife seat is provided with a rear indentation knife, the front knife seat is connected to a first lifting drive assembly, the rear knife seat is connected to a second lifting drive assembly, and at least one of the front and rear knife seats is connected to a transverse movement drive assembly; when working, the first lifting drive assembly drives the front indentation knife on the front knife seat, and the second lifting drive assembly drives the rear indentation knife on the rear knife seat to alternately perform an ascending action to the same indentation height, and cooperates with the action of the transverse movement drive assembly to make the front indentation knife press out an outer indentation on the outer side surface of the card, and the rear indentation knife press out an inner indentation on the inner surface of the card, and the inner and outer indentations are aligned front to back.

[0006] The first lifting drive assembly includes a first cylinder, a piston rod of the first cylinder is connected to the front tool holder, and the second lifting drive assembly includes a second cylinder, a piston rod of the second cylinder is connected to the rear tool holder.

[0007] The transverse movement drive assembly includes a third cylinder, and the third cylinder is connected to the moving frame. The rear tool holder and the second lifting drive assembly are both arranged on the moving frame.

[0008] The front knife seat is provided with a front pad that can cooperate with the rear indentation knife to make indentations, and the rear knife seat is provided with a rear pad that can cooperate with the front indentation knife to make indentations.

[0009] The front pad is connected to a first adjusting bolt which is screwed onto the front knife seat. The rear pad is connected to a second adjusting bolt which is screwed onto the rear knife seat.

[0010] The high-precision double-sided card indentation device of the above technical solution integrates the front and rear indentation components into one indentation unit, so that the sheet can complete the external indentation and internal indentation operations in succession after being pulled into the indentation unit and stationary, thereby avoiding the problem of the internal and external indentations being unable to be aligned due to the up and down deviation of the sheet during the pulling process, effectively improving the accuracy of the indentation, and ensuring that the internal and external indentations can be precisely coordinated to achieve sheet tearing during subsequent folding card packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention has the following accompanying drawings: Figure 1 is a side view of the present invention; Figure 2 for Figure 1 A partial enlarged view of the area pointed by A in the middle; Figure 3 A top view of the present invention; Figure 4 It is a view of the front and back positions of the sheet after indentation; Figure 5 This is a view of a sheet-type packaging bag being bent and torn, with material dripping out. DETAILED DESCRIPTION

[0012] As shown in the figure, the high-precision card double-sided indentation device disclosed in the present invention includes a front knife seat 9 and a rear knife seat 6, a front indentation knife 12 is provided on the front knife seat 9, and a rear indentation knife 8 is provided on the rear knife seat 6, the front knife seat 9 is connected to the first lifting drive assembly, and the rear knife seat 6 is connected to the second lifting drive assembly, and at least one of the front and rear knife seats is connected to the transverse movement drive assembly; when working, the first lifting drive assembly drives the front indentation knife 12 on the front knife seat 9, and the second lifting drive assembly drives the rear indentation knife 8 on the rear knife seat 6 to alternately perform an ascending action to the same indentation height, and cooperates with the action of the transverse movement drive assembly to make the front indentation knife 12 press out an outer indentation 17 on the outer side surface of the card, and the rear indentation knife 8 press out an inner indentation 19 on the inner surface of the card, and the inner and outer indentations are aligned front to back.

[0013] Furthermore, the first lifting drive assembly includes a first cylinder 4, the piston rod of the first cylinder 4 is connected to the front tool holder 9, the front tool holder 9 is connected to a first slide 15, and the frame is provided with a first slide rail 16 that cooperates with the first slide 15. The second lifting drive assembly includes a second cylinder 3, the piston rod of the second cylinder 3 is connected to the rear tool holder 6, the rear tool holder 6 is connected to a second slide 14, and the frame is provided with a second slide rail 13 that cooperates with the second slide 14. With the above structure, the front and rear tool holders can be driven to rise and fall by controlling the first and second cylinders, thereby driving the front and rear indenting knives to move to a suitable height position for indentation operation.

[0014] Furthermore, the transverse movement drive assembly includes a third cylinder 1, which is connected to the mobile frame 2. The rear tool holder 6 and the second lifting drive assembly are both mounted on the mobile frame 2. By controlling the operation of the third cylinder 1, the mobile frame 2 is moved, allowing the front and rear tool holders to move closer or further away from each other, thereby achieving the indentation operation. The front tool holder 9 can also be connected to a corresponding movement drive assembly to achieve forward and backward movement of the front tool holder 9, cooperating with the rear tool holder 6 to perform indentation.

[0015] Furthermore, the front blade holder 9 is provided with a front pad 10 that can cooperate with the rear creasing blade 8 to perform indentation, and the rear blade holder 6 is provided with a rear pad 7 that can cooperate with the front creasing blade 12 to perform indentation. With the above structure, by providing the pad, the creasing blade can cooperate with the pad to perform indentation, ensuring the indentation quality, and during long-term use, only the pad and the creasing blade need to be replaced.

[0016] Furthermore, the front pad 10 is connected to the first adjusting bolt 11, which is screwed onto the front tool holder 9, and the rear pad 7 is connected to the second adjusting bolt 5, which is screwed onto the rear tool holder 7. With the above structure, the front and rear positions of the pads can be adjusted by rotating the adjusting bolts, thereby adjusting the depth of the indentation, thereby improving its flexibility.

[0017] In addition, in addition to using cylinders, common linear drive structures such as linear motors, screw structures, cam structures, gear racks, synchronous belts, etc. can also be used to drive the front and rear tool holders and the movable frame 2 to move.

[0018] The working principle of the present invention is: the sheet 18 is first pulled into the indentation device and kept stationary, then the first cylinder 4 drives the front knife seat 9 to rise and drives the front indentation knife 12 to move to the indentation height, and at the same time the second cylinder 3 drives the rear knife seat 6 to descend, so that the rear pad 7 can be aligned with the front indentation knife 12, then the third cylinder 1 drives the movable frame 2 and the rear knife seat 6 to move, so that the sheet 18 is pressed between the front indentation knife 12 and the rear pad 7 to press an external indentation 17 on the sheet 18, then the third cylinder 1 drives the movable frame 2 to reset, the second cylinder 3 drives the rear knife seat 6 and the rear indentation knife 8 to rise to the indentation height, and at the same time the first cylinder 4 drives the front knife seat 9 to descend so that the front pad 10 is aligned with the rear indentation knife 8, then the third cylinder 1 drives the movable frame 2 and the rear knife seat 6 to move, so that the sheet 18 is pressed between the rear indentation knife 8 and the front pad 10 to press an internal indentation 19 on the sheet 18.

[0019] This structure of the present invention integrates the front and rear indentation components into one indentation unit, so that the sheet can complete the external indentation and internal indentation operations in succession after being pulled into the indentation unit and stationary, thereby avoiding the problem of the internal and external indentations being unable to be aligned due to the up and down deviation of the sheet during the pulling process, effectively improving the accuracy of the indentation, and ensuring that the internal and external indentations can be accurately coordinated to achieve sheet tearing during subsequent folding card packaging.

Claims

1. High-precision card double-sided indentation device, characterized by: The card holder comprises a front knife seat (9) and a rear knife seat (6), wherein a front indentation knife (12) is provided on the front knife seat (9), and a rear indentation knife (8) is provided on the rear knife seat (6), wherein the front knife seat (9) is connected to a first lifting drive assembly, and the rear knife seat (6) is connected to a second lifting drive assembly, and at least one of the front and rear knife seats is connected to a transverse movement drive assembly; when in operation, the first lifting drive assembly drives the front indentation knife (12) on the front knife seat (9), and the second lifting drive assembly drives the rear indentation knife (8) on the rear knife seat (6) to alternately perform an ascending action of the same indentation height, and cooperates with the action of the transverse movement drive assembly so that the front indentation knife (12) presses an outer indentation (17) on the outer side surface of the card, and the rear indentation knife (8) presses an inner indentation (19) on the inner surface of the card, and the inner and outer indentations are aligned front to back.

2. The high-precision card double-sided indentation device according to claim 1, characterized in that: The first lifting drive assembly includes a first cylinder (4), the piston rod of the first cylinder (4) is connected to the front tool holder (9), and the second lifting drive assembly includes a second cylinder (3), the piston rod of the second cylinder (3) is connected to the rear tool holder (6).

3. The high-precision card double-sided indentation device according to claim 1, characterized in that: The transverse movement drive assembly comprises a third cylinder (1), the third cylinder (1) is connected to the movable frame (2), and the rear tool holder (6) and the second lifting drive assembly are both arranged on the movable frame (2).

4. The high-precision card double-sided indentation device according to claim 1, characterized in that: The front knife seat (9) is provided with a front pad (10) that can cooperate with the rear indentation knife (8) to perform indentation, and the rear knife seat (6) is provided with a rear pad (7) that can cooperate with the front indentation knife (12) to perform indentation.

5. The high-precision card double-sided indentation device according to claim 4, characterized in that: The front pad (10) is connected to a first adjusting bolt (11), which is screwed onto the front knife seat (9); the rear pad (7) is connected to a second adjusting bolt (5), which is screwed onto the rear knife seat (7).

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