Edge cutting mechanism of laminating machine

Abstract

The utility model discloses an edge cutting mechanism of a laminating machine, which comprises a machine frame, a plurality of transmission rollers installed on the machine frame and two knife rests, the two knife rests are arranged on the machine frame in an opposite or opposite sliding mode along the direction perpendicular to the transmission direction of an object to be cut, and the machine frame is provided with a synchronous driving assembly for driving the two knife rests to synchronously move in an opposite or opposite mode. Each tool rest is provided with a tool apron, a cutter is rotationally arranged on one side of each tool apron, a cutting area which is provided with an opening and allows an object to be cut to enter is formed between the cutters, and the opening direction of the cutting area is opposite to the conveying direction of the object to be cut. Each cut-off knife is connected with a control assembly which controls the cut-off knife to rotate in a reciprocating mode towards one side of the cutting area. The utility model has the advantages and effects that the service life of the cut-off knife can be prolonged, the processing efficiency of equipment is improved, and the production cost of the equipment is reduced.

Description

Technical Field

[0001] The utility model relates to a laminating machine, in particular to a trimming mechanism of the laminating machine. Background Art

[0002] Laminating machine is a kind of equipment that coats plastic film with adhesive, and then combines it with printed matter with paper as the substrate, and then pressurizes it with rubber roller and heating roller to form a paper-plastic integrated product. The printed matter after laminating has a thin and transparent plastic film on the surface, which makes the surface smoother and brighter, not only improving the gloss and fastness of the printed matter, and extending the service life of the printed matter, but also the plastic film plays a protective role in waterproofing, anti-fouling, wear-resistant, fold-resistant, chemical corrosion-resistant, etc.

[0003] In order to meet the needs of market development, the laminating machine can also be equipped with a trimming mechanism, which can automatically trim the excess on both sides of the film and the substrate through the trimming mechanism to achieve automated production. The existing trimming mechanism includes a frame, two tool holders that are slidable toward or away from each other on the frame, a cutter fixedly mounted on the two tool holders, a left drive assembly that drives one of the tool holders to move, and a right drive assembly that drives the other tool holder to move. Since the existing cutter is fixedly set on the tool holder structure, the cutting contact position between the cutter and the object to be cut is always fixed. When the cutting contact position becomes blunt, the cutter needs to be polished or replaced. The workload is large and the cutter cannot be fully utilized, which ultimately affects the processing efficiency of the equipment and the service life of the cutter; and the existing structure also greatly increases the production cost of the equipment by setting two sets of drive assemblies. Utility Model Content

[0004] The utility model aims to provide a laminating machine edge cutting mechanism, which can extend the service life of the cutting blade, improve the processing efficiency of the equipment and reduce the production cost of the equipment.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a laminating machine trimming mechanism, comprising a frame, a plurality of transmission rollers installed on the frame and two tool holders, the two tool holders are slidably arranged on the frame toward or away from each other along a transmission direction perpendicular to the object to be cut, the frame is provided with a synchronous driving component for driving the two tool holders to move synchronously toward or away from each other, each of the tool holders is provided with a tool seat, and a cutting knife is rotatably arranged on one side of the tool seat, a cutting area with an opening for the object to be cut to enter is formed between the cutting knife and the cutting knife, the opening of the cutting area is arranged opposite to the transmission direction of the object to be cut, and each of the cutting knives is connected to a control component for controlling the cutting knife to reciprocate toward one side of the cutting area.

[0006] By adopting the above technical solution, the object to be cut enters the cutting area from the opening of the cutting area via the transmission roller and cooperates with the knife holder to form a shear force on the object to be cut so that the object to be cut contacts the cutter to complete the trimming operation of the object to be cut. When the cutter is blunted at this position, the contact position between the cutter and the object to be cut is changed by controlling the rotation of the cutter by the control component, so that the position where the cutter did not originally contact the object to be cut cooperates with the knife holder to form a shear force to cut the object to be cut, thereby achieving full utilization of the cutter blade, extending the service life of the cutter, and improving the processing efficiency of the equipment by reducing the number of times the cutter is polished or replaced. The production cost of the equipment is reduced by controlling the two knife holders through a synchronous drive component.

[0007] It is further configured as follows: it includes a mounting frame rotatably mounted on the tool holder, the cutter is detachably mounted on the mounting frame, and the control component includes a gear rotating with the mounting frame, a cylinder mounted on the tool holder, and a rack driven by the cylinder and meshing with the gear.

[0008] By adopting the above technical solution, the cutter can be replaced or sharpened by means of a mounting frame in combination with a detachable mounting structure, and the cutter is driven to reciprocate through the mounting frame by means of a cylinder driving a rack in combination with a gear, thereby changing the contact position between the cutter and the object to be cut and maximizing the utilization rate of the cutter.

[0009] It is further configured as follows: the installation frame is rotated on the tool holder by the main shaft, the installation frame is slidably arranged along the main shaft axis, and a pressing spring is provided between the installation frame and the tool holder to drive the installation frame to press the cutting knife against the section of the tool holder.

[0010] By adopting the above technical solution, the pressing spring is pressed against the mounting frame to drive the cutter to move toward one side of the cutter holder section, so that the cutter and the cutter holder are tightly pressed against each other to form a stable shearing force to complete high-quality cutting operations, improve the flatness of the cut section, and thus improve the processing quality of the product.

[0011] It is further configured as follows: the installation frame includes a main body and a locking portion rotatably arranged on the main body, the main body is provided with a slot for inserting a cutter, and the locking portion is provided with a tightening torsion spring for driving the locking portion to press against the cutter insertion slot.

[0012] By adopting the above technical solution, one end of the cutter is inserted into the slot, and the other end is pressed by the torsion spring through the locking part to apply a pressing force to it to prevent the cutter from falling out of the slot, so as to achieve the purpose of detachable installation of the cutter, with simple structure and convenient operation.

[0013] It is further configured as follows: a limiting groove is provided at the position where the cutter abuts against the locking portion, and a limiting protrusion embedded in the limiting groove is fixedly provided on the locking portion, and the limiting groove cooperates with the limiting protrusion to limit the movement of the cutter along the insertion direction perpendicular to the slot.

[0014] By adopting the above technical solution, the limiting groove cooperates with the limiting protrusion structure to further limit the installed cutting knife structurally, further improving the stability of the cutting knife during the cutting process, thereby ensuring the cutting quality.

[0015] It is further configured as follows: the synchronous drive assembly includes two pulleys rotatably arranged on the frame, a transmission belt sleeved on the two pulleys, and a drive motor driving one of the pulleys to rotate, one of the tool holders is connected to the upper half of the transmission belt, and the other tool holder is connected to the lower half of the transmission belt.

[0016] By adopting the above technical solution, the driving motor drives the transmission belt to rotate through two pulleys, and the tool holders connected to different positions of the transmission belt are used to realize synchronous movement toward or away from each other, thereby achieving the driving purpose.

[0017] In summary, the utility model has the following beneficial effects: the utility model can extend the service life of the cutter, improve the processing efficiency of the equipment, and reduce the production cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of an embodiment;

[0019] Figure 2 It is a structural schematic diagram of an embodiment;

[0020] Figure 3 It is a partial structural schematic diagram of an embodiment;

[0021] Figure 4 It is a partial exploded view of the embodiment.

[0022] In the figure: 1. frame; 2. transmission roller; 3. knife holder; 4. synchronous drive assembly; 41. pulley; 42. transmission belt; 43. drive motor; 5. knife holder; 6. cutting knife; 7. cutting area; 8. control assembly; 81. gear; 82. cylinder; 83. rack; 9. mounting frame; 91. main body; 92. locking part; 10. main shaft; 11. tightening spring; 12. slot; 13. limit groove; 14. limit bump. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] refer to Figures 1 to 4A laminating machine trimming mechanism includes a frame 1, a plurality of transmission rollers 2 mounted on the frame 1, and two tool holders 3. The two tool holders 3 are arranged on the frame 1 to slide toward or away from each other along a transmission direction perpendicular to the object to be cut. The frame 1 is provided with a synchronous driving component 4 for driving the two tool holders 3 to move toward or away from each other synchronously. A tool holder 5 is fixedly arranged on each tool holder 3, and a mounting frame 9 is arranged on one side of the tool holder 5 to rotate through a main shaft 10. The mounting frame 9 is arranged on the tool holder 3 to rotate through the main shaft 10. A cutting knife 6 is detachably mounted on the mounting frame 9. A cutting area 7 with an opening for the object to be cut to enter is formed between the cutting knife 6 and the tool holder 5. The opening of the cutting area 7 is arranged in a direction opposite to the transmission direction of the object to be cut. Each mounting frame 9 is connected with a control component 8 for controlling the cutting knife 6 to reciprocate toward one side of the cutting area 7.

[0025] The control assembly 8 includes a gear 81 fixedly mounted on the mounting frame 9, a cylinder 82 mounted on the tool holder 3, and a rack 83 driven by the cylinder 82 and meshing with the gear 81; the cylinder body of the cylinder 82 is fixedly mounted on the tool holder 3, and the piston rod is fixedly connected to the rack 83. The mounting frame 9 is slidably mounted along the axis of the spindle 10, and a pressing spring 11 is provided between the mounting frame 9 and the tool holder 3 to drive the mounting frame 9 to press the cutter 6 against the cross section of the knife seat 5; the pressing spring 11 is sleeved on the spindle 10 and presses against the mounting frame 9.

[0026] The mounting frame 9 includes a main body 91 and a locking part 92 hingedly arranged on the main body 91 through a rotating shaft. The main body 91 is provided with a slot 12 for inserting the cutter 6. The locking part 92 is provided with a torsion spring for driving the locking part 92 to push against the cutter 6 to insert into the slot 12. The torsion spring is sleeved on the rotating shaft and one end is fixedly connected to the main body 91 and the other end is fixedly connected to the locking part 92. A limited embedding groove 13 is provided at the position where the cutter 6 pushes against the locking part 92. A limiting protrusion 14 embedded in the limited embedding groove 13 is fixedly arranged on the locking part 92. The limiting embedding groove 13 cooperates with the limiting protrusion 14 to limit the movement of the cutter 6 along the insertion direction perpendicular to the slot 12.

[0027] The synchronous drive assembly 4 includes two pulleys 41 rotatably arranged on the frame 1, a transmission belt 42 mounted on the two pulleys 41, and a driving motor 43 driving one of the pulleys 41 to rotate. The driving motor 43 is fixedly arranged on the frame 1 and the output shaft is fixedly connected to the pulley 41; one of the tool holders 3 is fixedly connected to the upper half of the transmission belt 42, and the other tool holder 3 is fixedly connected to the lower half of the transmission belt 42, and the transmission belt 42 is a synchronous belt.

[0028] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A trimming mechanism for a laminating machine, comprising a frame (1), a plurality of transmission rollers (2) mounted on the frame (1), and two knife holders (3), characterized in that: The two tool holders (3) are arranged on the frame (1) to slide towards or away from each other along a direction perpendicular to the transmission direction of the object to be cut. The frame (1) is provided with a synchronous driving component (4) for driving the two tool holders (3) to move towards or away from each other synchronously. Each of the tool holders (3) is provided with a tool seat (5). A cutting knife (6) is rotatably arranged on one side of the tool seat (5). A cutting area (7) having an opening for the object to be cut to enter is formed between the cutting knife (6) and the tool seat (5). The opening of the cutting area (7) is arranged in a direction opposite to the transmission direction of the object to be cut. Each of the cutting knives (6) is connected to a control component (8) for controlling the cutting knife (6) to reciprocate toward one side of the cutting area (7).

2. The edge trimming mechanism of the laminating machine according to claim 1, characterized in that: The invention comprises a mounting frame (9) rotatably mounted on a knife holder (3); the cutting knife (6) is detachably mounted on the mounting frame (9); and the control assembly (8) comprises a gear (81) rotating with the mounting frame (9), a cylinder (82) mounted on the knife holder (3), and a rack (83) driven by the cylinder (82) and meshing with the gear (81).

3. The edge trimming mechanism of the laminating machine according to claim 2, characterized in that: The installation frame (9) is rotatably arranged on the tool holder (3) via the main shaft (10), and the installation frame (9) is slidably arranged along the axis of the main shaft (10). A pressing spring (11) is arranged between the installation frame (9) and the tool holder (3) to drive the installation frame (9) so that the cutting knife (6) is pressed against the cross section of the knife seat (5).

4. The edge trimming mechanism of the laminating machine according to claim 2, characterized in that: The mounting frame (9) comprises a main body (91) and a locking portion (92) rotatably arranged on the main body (91); the main body (91) is provided with a slot (12) for inserting the cutting knife (6); and the locking portion (92) is provided with a torsion spring for driving the locking portion (92) to press against the cutting knife (6) to insert into the slot (12).

5. The edge trimming mechanism of the laminating machine according to claim 4, characterized in that: A limiting groove (13) is provided at the position where the cutting knife (6) abuts against the locking portion (92); a limiting protrusion (14) is fixedly provided on the locking portion (92) and is embedded in the limiting groove (13); the limiting groove (13) cooperates with the limiting protrusion (14) to limit the movement of the cutting knife (6) along an insertion direction perpendicular to the slot (12).

6. The edge trimming mechanism of the laminating machine according to claim 1, characterized in that: The synchronous drive assembly (4) comprises two pulleys (41) rotatably arranged on the frame (1), a transmission belt (42) sleeved on the two pulleys (41), and a driving motor (43) driving one of the pulleys (41) to rotate, one of the tool holders (3) being connected to the upper half of the transmission belt (42), and the other tool holder (3) being connected to the lower half of the transmission belt (42).

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