Plastic film hot-pressing and cutting all-in-one machine

Abstract

The utility model relates to a plastic film hot-pressing and cutting all-in-one machine, which belongs to the technical field of plastic films and comprises a workbench, a hot press is arranged at the right end of the upper surface of the workbench, a mounting frame is fixed at the left end of the upper surface of the workbench, a tool apron is arranged in an inner cavity of the mounting frame, and a cutter is arranged on the upper side of the tool apron. The upper surface of the tool apron is provided with a replacement mechanism used for conveniently replacing the cutter, and the lower surface of the tool apron is provided with a lifting mechanism used for increasing the height of the tool apron. The replacing mechanism comprises a mounting groove formed in the upper surface of the tool apron, and a connecting block is placed in an inner cavity of the mounting groove. According to the plastic film hot-pressing and cutting all-in-one machine, the replacement mechanism is arranged in the inner cavity of the tool apron, through mutual cooperation of all structures of the replacement mechanism, a worker can conveniently detach and replace a cutter, and the problem that a plastic film is curled due to the fact that a cutting opening is stretched due to passivation of the cutter is solved; and the cutting effect of the plastic film is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic films, in particular to a plastic film hot pressing and cutting integrated machine. Background Art

[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, used for packaging and as a coating layer. Plastic packaging and plastic packaging products occupy an increasingly larger share in the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical and other fields, among which food packaging accounts for the largest proportion.

[0003] Through searching, it was found that Chinese patent publication number: CN220684246U discloses a plastic film hot pressing and cutting integrated machine, including a frame, on which a feeding structure, a hot pressing structure, a connection structure, a cutting structure and a driving structure are arranged in sequence; the hot pressing structure includes two fixed molds, and the two fixed molds are fixed by four fixing rods, and a movable rod is arranged on the frame, and two fixing plates are fixed on the outer side of the movable rod, and hot pressing plates are fixed on the two fixing plates, and a buffer spring is sleeved on the outer side of the movable rod; the cutting structure includes a feeding structure arranged on the frame The utility model comprises a roller, a conveying roller that can rotate independently, an auxiliary roller with adjustable height, a lower pressure roller with adjustable height, a knife seat and a cutter that can move up and down; the driving structure drives the movable rod to move up and down and the cutter to move up and down, and realizes the setting of a driving source through a series of connecting rod movements, which can drive the hot pressing structure and the cutting structure to operate at the same time, and saves costs. However, the cutter in the utility model will easily become blunt as the number of uses increases, and then stretching will occur at the incision during slitting, causing the edge of the plastic film roll to turn outward and cause warping, thereby reducing the cutting quality of the plastic film. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a plastic film hot pressing and cutting machine, which has the advantages of easy replacement of the cutter, etc., and solves the problem that the cutter will become blunt as the number of uses increases, and then stretching will occur at the incision during slitting, causing the edge of the plastic film roll to turn outward and cause warping, thereby reducing the cutting quality of the plastic film.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic film hot pressing and cutting integrated machine, comprising a workbench, a hot pressing machine is provided on the right end of the upper surface of the workbench, a mounting frame is fixed on the left end of the upper surface of the workbench, a knife seat is provided in the inner cavity of the mounting frame, a cutting knife is provided on the upper side of the knife seat, a replacement mechanism for facilitating the removal and replacement of the cutting knife is provided on the upper surface of the knife seat, and a lifting mechanism for increasing the height of the knife seat is provided on the lower surface of the knife seat;

[0006] The replacement mechanism includes an installation groove provided on the upper surface of the knife seat, a connecting block is placed in the inner cavity of the installation groove, a limiting rod is fixed at the bottom between the opposite sides of the front and rear side walls of the inner cavity of the knife seat, the front and rear ends of the upper surface of the knife seat are threadedly connected to a threaded rod with one end passing through and extending into its inner cavity, the lower surface of the threaded rod is rotatably connected to a support plate through a bearing, the left and right ends of the outer surface of the limiting rod are slidably connected to a sliding sleeve, the lower surface of the support plate and the upper surface of the sliding sleeve are fixed with an articulated seat, an articulated rod is provided between the opposite sides of the articulated seats at the upper and lower ends, a slide plate is fixed on the opposite sides of the two sliding sleeves, and a clamping block is fixed on the top of the opposite sides of the two slide plates.

[0007] Furthermore, the cross-sectional shape of the knife seat is an isosceles trapezoid, the size of the inner cavity of the mounting groove is matched with the size of the connecting block, and the cutter is fixed on the upper surface of the connecting block.

[0008] Furthermore, a sliding rod is fixed on the opposite side of the two support plates, and a sliding groove is opened on the top of the opposite side of the inner front wall and the inner back wall of the knife holder, and the sliding rod performs linear movement up and down in the inner cavity of the sliding groove.

[0009] Furthermore, the slide plate is slidably connected to the limiting rod, a vertical rod is fixed to the lower surface of the slide plate, and limiting grooves matching the size of the vertical rod are provided at both the front and rear ends of the inner bottom wall of the knife holder.

[0010] Furthermore, slots are provided on both the front and rear sides of the connection block, and the size of the inner cavity of the slots is adapted to the size of the card block.

[0011] Furthermore, the lifting mechanism includes a movable plate fixed on the lower surface of the knife seat, a tooth plate is fixed on the left side of the movable plate, and the bottom between the inner front wall and the inner back wall of the mounting frame is rotatably connected to an axis rod through a bearing, and a gear is fixed on the outer surface of the axis rod, and the gear is meshingly connected to the tooth plate.

[0012] Furthermore, a positioning groove is provided on one side of the inner front wall and the inner back wall of the mounting frame, and positioning blocks are fixed on the front and back sides of the movable plate, and the positioning blocks perform linear up and down motion in the inner cavity of the positioning groove.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The plastic film hot pressing and cutting machine is provided with a replacement mechanism in the inner cavity of the knife seat. Through the cooperation between the various structures of the replacement mechanism, it is convenient for the staff to disassemble and replace the cutter, which solves the problem of stretching at the incision caused by the bluntness of the cutter, causing the plastic film to curl, and improves the cutting effect of the plastic film.

[0015] 2. The plastic film hot pressing and cutting machine can adjust the height of the movable plate through the cooperation between the movable plate, tooth plate, shaft rod and gear and the driving motor, so that the height of the knife seat and the cutter can be adjusted, so that the plastic film between the positioning rollers at the left and right ends can be quickly cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the replacement mechanism of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the lifting mechanism of the utility model.

[0020] In the figure: 1 workbench, 2 hot press, 3 mounting frame, 4 knife seat, 5 cutting knife, 6 replacement mechanism, 601 mounting slot, 602 connecting block, 603 limiting rod, 604 threaded rod, 605 supporting plate, 606 sliding sleeve, 607 articulated seat, 608 articulated rod, 609 sliding plate, 610 clamping block, 7 lifting mechanism, 701 movable plate, 702 tooth plate, 703 shaft rod, 704 gear. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-2 A plastic film hot pressing and cutting machine in this embodiment includes a workbench 1, a hot pressing machine 2 is provided at the right end of the upper surface of the workbench 1, a mounting frame 3 is fixed to the left end of the upper surface of the workbench 1, a knife seat 4 is provided in the inner cavity of the mounting frame 3, a cutting knife 5 is provided on the upper side of the knife seat 4, a replacement mechanism 6 for facilitating the removal and replacement of the cutting knife 5 is provided on the upper surface of the knife seat 4, and a lifting mechanism 7 for increasing the height of the knife seat 4 is provided on the lower surface of the knife seat 4.

[0023] The cross-sectional shape of the knife seat 4 is an isosceles trapezoid.

[0024] It should be noted that two positioning rollers are rotatably connected to the left and right ends of the opposite sides of the front and rear side walls of the inner cavity of the mounting frame 3 through bearings, a through hole is opened on the left side wall of the inner cavity of the mounting frame 3, a support frame is fixed to the middle of the upper surface of the workbench 1, and guide rollers are rotatably connected to the upper and lower ends of the inner cavity of the support frame through bearings, and a driving motor is fixed to the left end of the front side of the mounting frame 3, and the output shaft of the driving motor passes through the mounting frame 3 and extends to the inner cavity of the mounting frame 3 and is fixed to the shaft 703.

[0025] See also Figure 3 In order to improve the cutting effect of the plastic film, the replacement mechanism 6 in this embodiment includes a mounting groove 601 provided on the upper surface of the knife seat 4, a connecting block 602 is placed in the inner cavity of the mounting groove 601, a limiting rod 603 is fixed at the bottom between the opposite sides of the front and rear side walls of the inner cavity of the knife seat 4, and the front and rear ends of the upper surface of the knife seat 4 are threadedly connected with a threaded rod 604 with one end penetrating and extending into its inner cavity, and the lower surface of the threaded rod 604 is rotatably connected with a support plate 605 through a bearing, and the threaded rods 604 at both ends are rotated, and the two threaded rods 604 move upward when rotating, thereby driving the support plate 605 to move upward, and the left and right ends of the outer surface of the limiting rod 603 are slidably connected with a sliding sleeve 606, and the lower surface of the support plate 605 and the upper surface of the sliding sleeve 606 are fixed with a hinge seat 607. A hinge rod 608 is provided between the opposite sides of the hinged seats 607 at the lower ends. The movement of the support plate 605 can drive the hinged seat 607 at the upper end to move, and then drive the hinged seat 607 at the lower end to move through the hinged rod 608. The movement of the hinged seat 607 at the lower end drives the sliding sleeve 606 to move. At this time, the two sliding sleeves 606 move away from each other. A slide plate 609 is fixed on the opposite side of the two sliding sleeves 606. A clamping block 610 is fixed on the top of the opposite side of the two sliding sleeves 609. The movement of the two sliding sleeves 606 drives the two sliding slides 609 to move away from each other. The opposite movement of the two sliding slides 609 can cause the clamping block 610 to detach from the inner cavity of the clamping slot until the clamping block 610 moves into the inner cavity of the knife seat 4, so that the restriction on the connecting block 602 can be released, and then the connecting block 602 can be taken out of the installation slot 601 and replaced.

[0026] Among them, the size of the inner cavity of the installation groove 601 is compatible with the size of the connecting block 602, the cutter 5 is fixed on the upper surface of the connecting block 602, and sliding rods are fixed on the opposite sides of the two support plates 605. The tops of the opposite sides of the inner front wall and the inner back wall of the knife seat 4 are provided with sliding grooves, and the sliding rod makes linear up and down movements in the inner cavity of the sliding groove.

[0027] In this embodiment, the slide plate 609 is slidably connected to the limit rod 603, a vertical rod is fixed to the lower surface of the slide plate 609, and the front and rear ends of the inner bottom wall of the knife seat 4 are provided with limit grooves that are adapted to the size of the vertical rod. The front and rear sides of the connecting block 602 are provided with slots, and the size of the inner cavity of the slot is adapted to the size of the block 610.

[0028] See also Figure 4 In order to adjust the height of the knife seat 4 and the cutter 5, the lifting mechanism 7 in this embodiment includes a movable plate 701 fixed to the lower surface of the knife seat 4, a tooth plate 702 is fixed to the left side of the movable plate 701, and the bottom between the inner front wall and the inner back wall opposite to the mounting frame 3 is rotatably connected with a shaft rod 703 through a bearing. The plastic film after hot pressing by the hot press 2 can be introduced into the two positioning rollers through the guide rollers at the upper and lower ends. At this time, the driving motor is started, and the output shaft of the driving motor rotates, thereby driving the shaft rod 703 to rotate. A gear 704 is fixed to the outer surface of the shaft rod 703, and the gear 704 is meshed with the tooth plate 702. The rotation of the shaft rod 703 causes the rotating gear 704 fixed on its surface to rotate, and the rotation of the rotating gear 704 can cause the tooth plate 702 to move upward, and the movement of the tooth plate 702 drives the movable plate 701 to move upward. The movement of the movable plate 701 can drive the knife seat 4 and the cutter 5 to move, so that the plastic film can be cut.

[0029] Among them, positioning grooves are opened on the side opposite to the inner front wall and the inner back wall of the mounting frame 3, and positioning blocks are fixed on the front and back sides of the movable plate 701. The positioning blocks make linear up and down movements in the inner cavity of the positioning groove. When the movable plate 701 moves, the positioning blocks fixed on the front and back sides move in the inner cavity of the positioning groove to limit the movement of the movable plate 701.

[0030] The working principle of the above embodiment is:

[0031] (1) When replacing the cutter 5, first rotate the threaded rods 604 at both ends. The two threaded rods 604 move upward while rotating, thereby driving the support plate 605 to move upward. When the support plate 605 moves, the sliding rod fixed at the left end thereof moves in the inner cavity of the slide groove to limit the movement of the support plate 605. The movement of the support plate 605 can drive the upper hinge seat 607 to move, thereby driving the lower hinge seat 607 to move through the hinge rod 608. The movement of the lower hinge seat 607 drives the sliding sleeve 60 6 moves, at this time, the two sliding sleeves 606 move in opposite directions, and the movement of the two sliding sleeves 606 drives the two sliding plates 609 to move in opposite directions. When the sliding plate 609 moves, the vertical rod fixed on the lower surface thereof moves in the inner cavity of the limiting groove, which can limit the movement of the sliding plate 609. The opposite movement of the two sliding plates 609 can make the clamping block 610 disengage from the inner cavity of the clamping groove until the clamping block 610 moves into the inner cavity of the knife holder 4, so as to release the restriction on the connecting block 602, and then the connecting block 602 can be taken out of the installation groove 601 and replaced.

[0032] (2) The plastic film after heat pressing by the heat press machine 2 can be introduced into the two positioning rollers through the guide rollers at the upper and lower ends. At this time, the driving motor is started, and the output shaft of the driving motor rotates, thereby driving the shaft 703 to rotate. The rotation of the shaft 703 causes the rotating gear 704 fixed on its surface to rotate. The rotation of the rotating gear 704 can cause the tooth plate 702 to move upward. The movement of the tooth plate 702 drives the movable plate 701 to move upward. When the movable plate 701 moves, the positioning blocks fixed on the front and back sides of the movable plate 701 move in the inner cavity of the positioning groove to limit the movement of the movable plate 701. The movement of the movable plate 701 can drive the knife holder 4 and the cutter 5 to move, so that the plastic film can be cut. The cutter 5 can be moved downward by reversing the output shaft of the driving motor.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A plastic film hot pressing and cutting machine, comprising a workbench (1), characterized in that: A hot press (2) is provided at the right end of the upper surface of the workbench (1), a mounting frame (3) is fixed at the left end of the upper surface of the workbench (1), a knife seat (4) is provided in the inner cavity of the mounting frame (3), a cutting knife (5) is provided on the upper side of the knife seat (4), a replacement mechanism (6) for facilitating the removal and replacement of the cutting knife (5) is provided on the upper surface of the knife seat (4), and a lifting mechanism (7) for raising the height of the knife seat (4) is provided on the lower surface of the knife seat (4); The replacement mechanism (6) comprises a mounting groove (601) provided on the upper surface of the knife seat (4); a connecting block (602) is placed in the inner cavity of the mounting groove (601); a limiting rod (603) is fixed at the bottom between the opposite sides of the front and rear side walls of the inner cavity of the knife seat (4); the front and rear ends of the upper surface of the knife seat (4) are both threadedly connected to a threaded rod (604) having one end penetrating and extending into the inner cavity thereof; the lower surface of the threaded rod (604) is rotatably connected to a support plate (604) via a bearing. 5), the left and right ends of the outer surface of the limit rod (603) are slidably connected with a sliding sleeve (606), the lower surface of the support plate (605) and the upper surface of the sliding sleeve (606) are fixed with a hinge seat (607), and a hinge rod (608) is provided between the opposite sides of the hinge seats (607) at the upper and lower ends, and a slide plate (609) is fixed on the opposite side of the two sliding sleeves (606), and a clamping block (610) is fixed on the top of the opposite side of the two sliding plates (609).

2. The plastic film hot pressing and cutting machine according to claim 1, characterized in that: The cross-sectional shape of the knife seat (4) is an isosceles trapezoid, the size of the inner cavity of the mounting groove (601) is matched with the size of the connecting block (602), and the cutting knife (5) is fixed on the upper surface of the connecting block (602).

3. The plastic film hot pressing and cutting machine according to claim 1, characterized in that: A sliding rod is fixed on the opposite side of the two support plates (605), and a sliding groove is opened on the top of the opposite side of the inner front wall and the inner back wall of the knife seat (4), and the sliding rod performs linear movement up and down in the inner cavity of the sliding groove.

4. The plastic film hot pressing and cutting machine according to claim 1, characterized in that: The slide plate (609) is slidably connected to the limiting rod (603), a vertical rod is fixed to the lower surface of the slide plate (609), and limiting grooves matching the size of the vertical rod are provided at the front and rear ends of the inner bottom wall of the knife seat (4).

5. The plastic film hot pressing and cutting machine according to claim 1, characterized in that: Slots are provided on both the front and rear sides of the connection block (602), and the size of the inner cavity of the slots is compatible with the size of the card block (610).

6. The plastic film hot pressing and cutting machine according to claim 1, characterized in that: The lifting mechanism (7) comprises a movable plate (701) fixed on the lower surface of the knife seat (4), a tooth plate (702) being fixed on the left side of the movable plate (701), a shaft (703) being rotatably connected to the bottom between the inner front wall and the inner back wall of the mounting frame (3) via a bearing, a gear (704) being fixed on the outer surface of the shaft (703), and the gear (704) being meshingly connected to the tooth plate (702).

7. The plastic film hot pressing and cutting machine according to claim 6, characterized in that: The inner front wall of the mounting frame (3) is provided with a positioning groove on one side opposite to the inner back wall, and the front and back sides of the movable plate (701) are fixed with positioning blocks, which perform linear up and down motion in the inner cavity of the positioning groove.

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