Film drawing mechanism and printing sealing and cutting machine thereof

Abstract

The utility model discloses a film drawing mechanism and a printing sealing and cutting machine thereof, the film drawing mechanism comprises a printing sealing and cutting machine transmission mechanism, the side end of the printing sealing and cutting machine transmission mechanism is fixedly provided with an extension device, the extension device comprises an H-shaped sliding key, a first reset spring, a supporting cross frame and a positioning base frame, the H-shaped sliding key is inserted in the positioning base frame in a sliding mode, and the first reset spring is arranged on the H-shaped sliding key. The first reset spring is fixedly installed between the H-shaped sliding key and the positioning base frame, the supporting transverse frame is fixedly installed at the side end, away from the first reset spring, of the H-shaped sliding key, the film drawing mechanism comprises a transmission device and a positioning device, the transmission device is fixedly installed at the end, away from a printing sealing and cutting machine conveying mechanism, of the extending device, and the positioning device is fixedly installed at the end, away from the printing sealing and cutting machine conveying mechanism, of the positioning base frame. The positioning device is fixedly installed at the other end, close to the printing sealing and cutting machine conveying mechanism, of the extending device. Through the arrangement of the extension device, the transmission device and the positioning device, the purposes of preventing blockage and synchronously collecting leftover materials when the film drawing mechanism pulls the leftover materials are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing sealing and cutting machines, in particular to a film pulling mechanism and a printing sealing and cutting machine thereof. Background Art

[0002] Printing sealing and cutting machine is a machine used to cut printed materials. It can cut large quantities of printed materials quickly and stably, so it is widely used in printing plants, paper processing companies, etc. The working principle of the sealing and cutting machine is usually to press the paper on the sealing and cutting bed, and then through the action of force, the paper is cut along the set cutting track.

[0003] For example, a sealing and cutting machine for environmentally friendly PVC heat shrinkable printed film packaging with Chinese patent publication number CN213055122U includes a frame and a feed traction roller, a discharge traction roller, a workbench and a puncher arranged on the frame. A first support frame is fixedly provided on the top of the frame and above the workbench, the puncher is arranged on the first support frame, and a second support frame is fixedly provided on the top of the frame and on the right side of the first support frame.

[0004] The sealing and cutting machine in the above patent can only realize the function of protecting the blade when in use. However, when the existing printing sealing and cutting machine is in use, since the film pulling mechanism adopts a plastic wheel to pull, and the cut scraps can be transported to the ground, the plastic wheel may get stuck when pulling the scraps or fail to collect the scraps synchronously. Therefore, a device is needed to improve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide a film drawing mechanism and a printing, sealing and cutting machine thereof to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A film pulling mechanism comprises a transmission device and a positioning device, wherein the transmission device is fixedly mounted on one end of the extension device away from the transmission mechanism of a printing sealing and cutting machine, and the positioning device is fixedly mounted on the other end of the extension device close to the transmission mechanism of the printing sealing and cutting machine, the transmission device comprises a plastic wheel, a first gear, a winding wheel, a transmission toothed belt, a second gear and a driving motor, the second gear is fixedly mounted on the side end center of the driving motor, the plastic wheel is fixedly mounted on the side end center of the second gear away from the driving motor, the transmission toothed belt is meshed on the outer ring of the second gear, the first gear is meshed on the inner end of the transmission toothed belt away from the second gear, the winding wheel is fixedly mounted on the side end center of the first gear, the positioning device comprises a second reset spring, a guide rod, a T-shaped connecting rod, an L-shaped extension rod, and a round wheel, the round wheel is rotatably mounted inside the side end of the L-shaped extension rod, the guide rod is symmetrically fixedly mounted on the top end of the L-shaped extension rod away from the round wheel, the T-shaped connecting rod is slidably sleeved on the guide rod, and the second reset spring is symmetrically fixedly mounted between the T-shaped connecting rod and the L-shaped extension rod.

[0008] Preferably, the drive motor is fixedly mounted on a side end of the supporting cross frame close to the first return spring.

[0009] Preferably, one end of the T-shaped connecting rod away from the guide rod is fixedly mounted on one end of the supporting cross frame close to the first return spring.

[0010] Preferably, the plastic wheel, the winding wheel and the round wheel are vertically aligned.

[0011] A printing sealing and cutting machine includes a printing sealing and cutting machine transmission mechanism, and an extension device is fixedly installed on the side end of the printing sealing and cutting machine transmission mechanism. The extension device includes an H-shaped sliding key, a first return spring, a supporting cross frame and a positioning base frame. The H-shaped sliding key is slidably inserted in the interior of the positioning base frame, the first return spring is fixedly installed between the H-shaped sliding key and the positioning base frame, and the supporting cross frame is fixedly installed on the side end of the H-shaped sliding key away from the first return spring.

[0012] Preferably, the winding wheel is rotatably mounted on the side end of the supporting cross frame away from the first return spring, and the positioning base frame is fixedly mounted on the side end of the transmission mechanism of the printing, sealing and cutting machine.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] When the device is in use, the elasticity of the first return spring drives the plastic wheel to move downward, so that the plastic wheel can squeeze the packaging film and contact the positioning base, so that the plastic wheel can realize the function of transmitting the packaging film when rotating. At the same time, the circular wheel can realize the synchronous pressing work, so that the packaging film can be prevented from tilting and falling. Moreover, when the plastic wheel transmits the packaging film, it can synchronously drive the winding wheel to rotate, so that the winding wheel can synchronously wind up the packaging film, thereby completing the work of pressing and synchronously winding the packaging film. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a partial cutaway schematic diagram of the extension device of the utility model;

[0017] Figure 3 It is a schematic diagram of the transmission structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the positioning device of the utility model.

[0019] In the figure: 1-extension device, 2-transmission device, 3-positioning device, 4-printing sealing and cutting machine transmission mechanism, 5-H-type sliding key, 6-first return spring, 7-support cross frame, 8-positioning base frame, 9-plastic wheel, 10-first gear, 11-winding wheel, 12-transmission toothed belt, 13-second gear, 14-driving motor, 15-second return spring, 16-guide rod, 17-T-type connecting rod, 18-L-type extension rod, 19-round wheel. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4 , an embodiment provided by the utility model:

[0022] A film drawing mechanism, comprising a transmission device 2 and a positioning device 3, wherein the transmission device 2 is fixedly mounted on one end of an extension device 1 away from a transmission mechanism 4 of a printing sealing and cutting machine, and the positioning device 3 is fixedly mounted on the other end of the extension device 1 close to the transmission mechanism 4 of the printing sealing and cutting machine, characterized in that: the transmission device 2 comprises a plastic wheel 9, a first gear 10, a winding wheel 11, a transmission toothed belt 12, a second gear 13 and a driving motor 14, the second gear 13 is fixedly mounted on the side end center of the driving motor 14, the plastic wheel 9 is fixedly mounted on the side end center of the second gear 13 away from the driving motor 14, and the transmission toothed belt 12 is meshed with the second gear 1 3, the first gear 10 is meshed with the inner end of the transmission belt 12 away from the second gear 13, the winding wheel 11 is fixedly installed at the side end center of the first gear 10, the positioning device 3 includes a second reset spring 15, a guide rod 16, a T-shaped connecting rod 17, an L-shaped extension rod 18, and a round wheel 19, the round wheel 19 is rotatably installed inside the side end of the L-shaped extension rod 18, the guide rod 16 is symmetrically fixedly installed at the top of the L-shaped extension rod 18 away from the round wheel 19, the T-shaped connecting rod 17 is slidably sleeved on the guide rod 16, and the second reset spring 15 is symmetrically fixedly installed between the T-shaped connecting rod 17 and the L-shaped extension rod 18.

[0023] The driving motor 14 is fixedly mounted on the side end of the supporting cross frame 7 close to the first return spring 6, which can support the driving motor 14 to work.

[0024] One end of the T-shaped connecting rod 17 away from the guide rod 16 is fixedly mounted on one end of the supporting cross frame 7 close to the first return spring 6. When the supporting cross frame 7 moves, the T-shaped connecting rod 17 can be driven to move simultaneously.

[0025] The plastic wheel 9, the winding wheel 11 and the round wheel 19 are vertically aligned to prevent the corners of the packaging film from being skewed when being conveyed.

[0026] A printing sealing and cutting machine includes a printing sealing and cutting machine transmission mechanism 4, and an extension device 1 is fixedly installed on the side end of the printing sealing and cutting machine transmission mechanism 4. The extension device 1 includes an H-shaped sliding key 5, a first return spring 6, a supporting cross frame 7 and a positioning base frame 8. The H-shaped sliding key 5 is slidably inserted in the interior of the positioning base frame 8, the first return spring 6 is fixedly installed between the H-shaped sliding key 5 and the positioning base frame 8, and the supporting cross frame 7 is fixedly installed on the side end of the H-shaped sliding key 5 away from the first return spring 6.

[0027] The winding wheel 11 is rotatably mounted on the side end of the supporting cross frame 7 away from the first reset spring 6, and the positioning base frame 8 is fixedly mounted on the side end of the printing sealing and cutting machine transmission mechanism 4 to support the positioning base frame 8 to carry the edges and corners of the packaging film.

[0028] Working principle: When in use, when the transmission mechanism 4 of the printing sealing and cutting machine is in use, the front end of the edge of the packaging film can be pulled to the front end, and then the supporting cross frame 7 is pulled upward, so that the plastic wheel 9 and the round wheel 19 are respectively out of contact with the positioning base frame 8, and then the front end of the edge of the packaging film is wound around the outer ring of the winding wheel 11 through the bottom ends of the plastic wheel 9 and the round wheel 19, and then the supporting cross frame 7 is released. The elasticity of the first reset spring 6 will drive the plastic wheel 9 to move downward until it contacts the edge of the packaging film on the positioning base frame 8. At the same time, the round wheel 19 is kept When the plastic wheel 9 is kept in a normal state, it is 5 cm longer than the bottom end of the plastic wheel 9, and the elastic force of the first reset spring 6 is greater than the elastic force of the second reset spring 15, so that the round wheel 19 will contact the corner of the packaging film on the positioning base 8 in advance, so that the round wheel 19 can press the corner of the packaging film, and then, through the drive motor 14, there is an electrical connection with the inside of the printing sealing and cutting machine transmission mechanism 4, so that the printing sealing and cutting machine transmission mechanism 4 can start the drive motor 14 at the same time when performing the sealing and cutting work. When the drive motor 14 is started, it can drive the plastic wheel 9 to rotate, and through the plastic wheel 9 and the positioning base The packaging film on the frame 8 contacts, so that when the plastic wheel 9 rotates, it can drive the packaging film to be transported in the direction of the winding wheel 11. At the same time, when the plastic wheel 9 transports the edge of the packaging film, the round wheel 19 is located at the end away from the winding wheel 11, so that the edge of the packaging film can first pass through the bottom end of the round wheel 19, and the elasticity of the second return spring 15 will drive the edge of the packaging film to fit with the positioning base frame 8 to prevent the edge of the packaging film from warping. At the same time, when the supporting cross frame 7 moves up and down, the H-shaped sliding key 5 slides in the card slot inside the positioning base frame 8, This ensures that the supporting cross frame 7 moves up and down in a straight line. When the device is in use, the round wheel 19 is longer than the plastic wheel 9, so that when the supporting cross frame 7 moves downward, the round wheel 19 can first press the edge of the packaging film, and then the plastic wheel 9 contacts the edge of the packaging film, so as to prevent the front end of the edge of the packaging film from being lifted or skewed. Afterwards, when the plastic wheel 9 rotates, it can drive the second gear 13 and the first gear 10 to rotate synchronously, so that when the plastic wheel 9 transmits the edge of the packaging film, the winding wheel 11 can synchronously wind up the edge of the packaging film to complete the work.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A film-drawing mechanism, comprising a transmission device (2) and a positioning device (3), wherein the transmission device (2) is fixedly mounted on one end of an extension device (1) away from a transmission mechanism (4) of a printing sealing and cutting machine, and the positioning device (3) is fixedly mounted on the other end of the extension device (1) close to the transmission mechanism (4) of the printing sealing and cutting machine, characterized in that: The transmission device (2) comprises a plastic wheel (9), a first gear (10), a winding wheel (11), a transmission toothed belt (12), a second gear (13) and a driving motor (14); the second gear (13) is fixedly mounted on the side end center of the driving motor (14); the plastic wheel (9) is fixedly mounted on the side end center of the second gear (13) away from the driving motor (14); the transmission toothed belt (12) is meshed on the outer ring of the second gear (13); the first gear (10) is meshed on the inner end of the transmission toothed belt (12) away from the second gear (13); the winding wheel (11) is fixedly mounted on the side end center of the second gear (13) away from the driving motor (14); The positioning device (3) is mounted at the center of the side end of the first gear (10). The positioning device (3) comprises a second return spring (15), a guide rod (16), a T-shaped connecting rod (17), an L-shaped extension rod (18), and a round wheel (19). The round wheel (19) is rotatably mounted inside the side end of the L-shaped extension rod (18). The guide rod (16) is symmetrically fixedly mounted at the top of the L-shaped extension rod (18) away from the round wheel (19). The T-shaped connecting rod (17) is slidably sleeved on the guide rod (16). The second return spring (15) is symmetrically fixedly mounted between the T-shaped connecting rod (17) and the L-shaped extension rod (18).

2. A film pulling mechanism according to claim 1, characterized in that: The driving motor (14) is fixedly mounted on the side end of the supporting cross frame (7) close to the first return spring (6).

3. A film pulling mechanism according to claim 2, characterized in that: One end of the T-shaped connecting rod (17) away from the guide rod (16) is fixedly mounted on one end of the supporting cross frame (7) close to the first return spring (6).

4. A film pulling mechanism according to claim 3, characterized in that: The plastic wheel (9), the winding wheel (11) and the round wheel (19) are vertically aligned.

5. A printing sealing and cutting machine, using a film pulling mechanism as claimed in claim 4, comprising a printing sealing and cutting machine transmission mechanism (4), wherein an extension device (1) is fixedly installed on the side end of the printing sealing and cutting machine transmission mechanism (4), characterized in that: The extension device (1) comprises an H-shaped sliding key (5), a first return spring (6), a supporting cross frame (7) and a positioning base frame (8); the H-shaped sliding key (5) is slidably inserted into the interior of the positioning base frame (8); the first return spring (6) is fixedly installed between the H-shaped sliding key (5) and the positioning base frame (8); and the supporting cross frame (7) is fixedly installed on the side end of the H-shaped sliding key (5) away from the first return spring (6).

6. A printing, sealing and cutting machine according to claim 5, characterized in that: The reel wheel (11) is rotatably mounted on the side end of the supporting cross frame (7) away from the first return spring (6), and the positioning base frame (8) is fixedly mounted on the side end of the transmission mechanism (4) of the printing sealing and cutting machine.

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