Winding mechanism for film winding machine for PE film production

Abstract

The utility model discloses a winding mechanism for a film winding machine for PE film production, and relates to the technical field of PE film production, the winding mechanism comprises a machine body, the upper part of the machine body is fixedly connected with two mounting racks, the opposite sides of the two mounting racks are both provided with first turntables, the first turntables are rotatably connected to one sides of the mounting racks, and the first turntables are arranged on the other sides of the mounting racks. According to the winding mechanism for the film winding machine for PE film production, threaded rings and threaded pipes are arranged, bolts are arranged on the roller shafts, the bolts only need to be aligned with the second rotating discs, the second rotating discs are located at the positions, deviating from the axes, of the first rotating discs, and the two roller shafts are arranged between the two first rotating discs. And then the threaded ring is rotated, so that the threaded pipe partially slides out of the sliding groove cavity of the second rotating disc, the plug pin is inserted into the pin groove of the threaded pipe, the structure is easy to operate, the roller shaft is convenient to disassemble and assemble, and therefore the use convenience of the winding mechanism for the film winding machine for PE film production can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of PE film production technology, specifically a winding mechanism for a stretch wrapping machine used in PE film production. Background Technology

[0002] PE film, or polyethylene film, refers to film produced from PE granules. PE film is moisture-proof and has low moisture permeability. Depending on the manufacturing method and control measures, polyethylene film (PE) can be manufactured into products with different properties, such as low-density, medium-density, high-density polyethylene, and cross-linked polyethylene. During the stretching process of PE film, it needs to be wound onto a roll for convenient storage and transportation. The roll needs to be installed on the winding mechanism of the stretch film machine used in PE film production, so that the winding mechanism drives the roll to rotate.

[0003] Since the roll needs to be mounted on the roller of the winding mechanism, and the roller needs to be linked with the drive equipment, it is often necessary to disassemble and assemble the roller and install the roll. Currently, the disassembly and assembly of the roller of the winding mechanism of the stretch film machine used for PE film production is troublesome and complicated. Moreover, the PE film production equipment needs to stop working during the disassembly and assembly process, which affects the working efficiency of PE film production. Summary of the Invention

[0004] The purpose of this utility model is to provide a winding mechanism for a stretch film machine used in PE film production, so as to solve the problem of cumbersome disassembly and assembly of the roller shaft in the current winding mechanism of the stretch film machine used in PE film production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a winding mechanism for a stretch film machine used in PE film production, comprising a machine body, two mounting frames fixedly connected to the upper part of the machine body, a first turntable provided on one side of each of the two mounting frames facing each other, the first turntable being rotatably connected to one side of the mounting frame, two second turntables being rotatably connected to one side of the first turntable, the second turntables being located off-center from the first turntable, two rollers being provided between the two first turntables, pins being fixedly connected to both ends of each roller, the pins having a hexagonal cross-section, a threaded tube slidably fitted on the outer side of the pins, a pin groove being provided on one side of the threaded tube, the pin groove having a hexagonal cavity cross-section, and the pin groove cavity being adapted to the pin, a threaded ring being threadedly fitted on the outer side of the threaded tube, the threaded ring being rotatably connected to one side of the second turntable, and a sliding groove being provided on one side of the second turntable for sliding connection with the threaded tube.

[0006] Preferably, an internal gear ring is fixedly connected to the inner wall of the first turntable, and a gear is rotatably connected to one side of the mounting bracket. The gear is located at the off-center of the first turntable, and the gear meshes with the internal gear ring.

[0007] Preferably, a conveyor belt is rotatably connected to one side of the mounting frame. The conveyor belt is located at the axis of the first turntable. Both second turntables on the first turntable are connected to the conveyor belt via transmission belts, and the two conveyor belts are staggered relative to each other.

[0008] Preferably, two servo motors are mounted on the mounting bracket on the right side, and the movable ends of the two servo motors are respectively fixedly connected to one side of the conveyor belt and one side of the gear.

[0009] Preferably, a controller is mounted on the machine body, the controller is electrically connected to the servo motor, and the controller is located on one side of the mounting bracket.

[0010] Preferably, a sliding opening is provided on one side of the mounting bracket, and a third turntable is rotatably connected to the end of the threaded tube away from the roller shaft. The controller is electrically connected to the power supply, and the sliding opening and the second turntable are both on the same moving trajectory.

[0011] Preferably, the outer side of the threaded tube is provided with an external thread, and the outer side of the threaded tube is provided with a circumferentially distributed groove. A circumferentially distributed rod is fixedly connected to the inner wall of the groove, and the rod is slidably connected to the groove.

[0012] Preferably, two first connecting rods are fixedly connected between the two first turntables, and a second connecting rod is fixedly connected between the two rotating belts.

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

[0014] 1. This application sets up a threaded ring and a threaded tube, and sets a pin on the roller shaft. It is only necessary to align the pin with the second turntable and then rotate the threaded ring to make the threaded tube slide out of the sliding groove cavity of the second turntable and insert the pin into the pin groove of the threaded tube. This structure is simple to operate and the roller shaft is easy to disassemble and assemble. Therefore, it can effectively improve the ease of use of the winding mechanism of the stretch film machine for PE film production.

[0015] 2. This application uses a rotatable first turntable and a second turntable, and sets two interchangeable rollers on the first turntable. In this way, the roller can be replaced simply by installing the roll on the spare roller in advance and then rotating the first turntable. This method can improve the convenience of roller replacement, reduce the impact of roller disassembly and assembly on PE film production, reduce the downtime of PE film production, and thus improve the efficiency of PE film production. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the winding mechanism of a stretch film machine for PE film production according to this utility model;

[0017] Figure 2This is a three-dimensional schematic diagram of the winding mechanism for a stretch film machine used in PE film production according to this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the cooperation between the first and second turntables of the winding mechanism for a stretch film machine used in PE film production according to this utility model.

[0019] Figure 4 This is a three-dimensional schematic diagram of the cooperation between the second connecting rod and the second turntable of the winding mechanism for a stretch film machine used in PE film production according to this utility model;

[0020] Figure 5 This is a three-dimensional schematic diagram of the cooperation between the first turntable and the first connecting rod of the winding mechanism of a stretch film machine for PE film production according to this utility model.

[0021] Labels in the diagram: 1. Machine body; 2. Mounting frame; 3. First turntable; 4. Second turntable; 5. Roller; 6. Pin; 7. Threaded pipe; 8. Threaded ring; 9. Gear; 10. Conveyor belt; 11. Servo motor; 12. Controller; 13. Slide; 14. Third turntable; 15. Trough; 16. Wire rod; 17. First connecting rod; 18. Second connecting rod; 19. Slide. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Figure 1 - Figure 5 As shown, this utility model provides a technical solution for a winding mechanism of a stretch film machine for PE film production, including a machine body 1. Two mounting frames 2 are fixedly connected to the upper part of the machine body 1. A first turntable 3 is provided on one side of each of the two mounting frames 2 facing each other. The first turntable 3 is rotatably connected to one side of the mounting frame 2. Two second turntables 4 are rotatably connected to one side of the first turntable 3. The second turntables 4 are located off-axis of the first turntable 3. Two rollers 5 are provided between the two first turntables 3. Pins 6 are fixedly connected to both ends of the rollers 5. The pins 6 have a hexagonal cross-section. A threaded tube 7 is slidably sleeved on the outside of the pins 6. A pin groove is opened on one side of the threaded tube 7. The pin groove has a hexagonal cavity cross-section and the pin groove cavity is adapted to the pin 6. A threaded ring 8 is threadedly sleeved on the outside of the threaded tube 7. The threaded ring 8 is rotatably connected to one side of the second turntable 4. A sliding groove 19 is opened on one side of the second turntable 4 and slidably connected to the threaded tube 7.

[0024] Place the roller 5 between the two first turntables 3 and insert the pin 6 at one end of the roller 5 into the corresponding pin groove. Then rotate the threaded ring 8 at the other end. The threaded ring 8 will drive the threaded tube 7 to slide in the slide groove 19, so that the threaded tube 7 partially slides in and is connected to the corresponding pin 6. This allows the roller 5 to be installed quickly. Conversely, the roller 5 can be disassembled quickly.

[0025] like Figure 1 , Figure 3 and Figure 5 As shown, an internal gear ring is fixedly connected to the inner wall of the first turntable 3, and a gear 9 is rotatably connected to one side of the mounting bracket 2. The gear 9 is located at the off-center of the first turntable 3, and the gear 9 meshes with the internal gear ring.

[0026] By rotating gear 9, the first turntable 3 is driven to rotate, thus changing the position of the two rollers 5. This allows the spare roller 5 to be moved to the working area for winding, while the roller 5 in the working area is moved to the spare area for easy disassembly and unloading.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, a rotating belt is rotatably connected to one side of the mounting frame 2. The rotating belt is located at the axis of the first turntable 3. The two second turntables 4 on the first turntable 3 are connected to the rotating belt by a transmission belt 10. The two transmission belts 10 are staggered with each other.

[0028] By rotating the conveyor belt, the two conveyor belts 10 drive the two second turntables 4 to rotate, which in turn causes the second turntables 4 to drive the corresponding rollers 5 to rotate, and the rollers 5 to wind the material.

[0029] like Figure 1 , Figure 3 and Figure 5 As shown, two servo motors 11 are mounted on the right mounting bracket 2. The movable ends of the two servo motors 11 are fixedly connected to one side of the conveyor belt and one side of the gear 9, respectively.

[0030] like Figure 1 and Figure 2 As shown, a controller 12 is installed on the body 1. The controller 12 is electrically connected to the servo motor 11, and the controller 12 is located on one side of the mounting bracket 2.

[0031] The controller 12 is used to control the forward and reverse rotation and start and stop of the servo motor 11.

[0032] like Figure 1 - Figure 5 As shown, a sliding opening 13 is provided on one side of the mounting bracket 2, and a third turntable 14 is rotatably connected to the end of the threaded tube 7 away from the roller shaft 5. The controller 12 is electrically connected to the power supply, and the sliding opening 13 and the second turntable 4 are both on the same moving trajectory.

[0033] The sliding opening 13 is located at the position of the spare roller 5, while the mounting frame 2 is located at the position of the roller 5 in the working area without the sliding opening 13;

[0034] This arrangement ensures that the third turntable 14 in the threaded tube 7 in the spare area does not contact the mounting bracket 2, allowing the threaded tube 7 to slide completely into the cavity of the slide groove 19, thus facilitating the disassembly and assembly of the roller 5. Meanwhile, the third turntable 14 in the threaded tube 7 in the working area contacts the mounting bracket 2, thereby improving the stability of the threaded tube 7 during use and preventing it from resetting or sliding into the slide groove 19 due to vibration or other reasons, which would affect the installation of the roller 5.

[0035] The length of the threaded tube 7 is twice the length of the second turntable 4. Therefore, when disassembling the roller 5, half of the threaded tube 7 needs to be completely hidden in the cavity of the slide groove 19, while the other half of the threaded tube 7 is located in the cavity of the slide opening 13.

[0036] like Figure 4 As shown, the outer side of the threaded tube 7 is provided with external threads, and the outer side of the threaded tube 7 is provided with a circumferentially distributed wire groove 15. A circumferentially distributed wire rod 16 is fixedly connected to the inner wall of the sliding groove 19, and the wire rod 16 is slidably connected to the wire groove 15.

[0037] The engagement of the rod 16 and the groove 15 ensures that the threaded tube 7 can only slide within the cavity of the groove 19 and cannot rotate.

[0038] like Figure 4 and Figure 5 As shown, two first connecting rods 17 are fixedly connected between the two first turntables 3, and a second connecting rod 18 is fixedly connected between the two rotating belts;

[0039] The first connecting rod 17 is to improve the stability of the two first turntables 3 rotating together and to make the two first turntables 3 form a whole and move together; the second connecting rod 18 can improve the stability of the two rotating belts rotating and to make the two rotating belts form a whole and move together.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A winding mechanism for a stretch film machine used in PE film production, comprising a machine body (1), characterized in that: The upper part of the machine body (1) is fixedly connected to two mounting brackets (2). Each of the two mounting brackets (2) is provided with a first turntable (3) on one side facing each other. Two second turntables (4) are rotatably connected to one side of the first turntables (3). Two rollers (5) are provided between the two first turntables (3). Pins (6) are fixedly connected to both ends of the rollers (5). A threaded tube (7) is slidably sleeved on the outside of the pin (6). A threaded ring (8) is threadedly sleeved on the outside of the threaded tube (7). The threaded ring (8) is rotatably connected to one side of the second turntable (4). A groove (19) is opened on one side of the second turntable (4) to slidably connect with the threaded tube (7).

2. The winding mechanism for a stretch film machine for PE film production according to claim 1, characterized in that: An internal gear ring is fixedly connected to the inner wall of the first turntable (3), and a gear (9) is rotatably connected to one side of the mounting bracket (2). The gear (9) is located at the off-axis center of the first turntable (3), and the gear (9) meshes with the internal gear ring.

3. The winding mechanism for a stretch wrapping machine for PE film production according to claim 2, characterized in that: The mounting bracket (2) is rotatably connected to a conveyor belt on one side. The conveyor belt is located at the axis of the first turntable (3). The two second turntables (4) on the first turntable (3) are connected to the conveyor belt (10) through transmission. The two conveyor belts (10) are staggered with each other.

4. The winding mechanism for a stretch wrapping machine for PE film production according to claim 3, characterized in that: Two servo motors (11) are mounted on the mounting bracket (2) on the right side. The movable ends of the two servo motors (11) are fixedly connected to one side of the conveyor belt and one side of the gear (9), respectively.

5. The winding mechanism for a stretch wrapping machine for PE film production according to claim 4, characterized in that: A controller (12) is installed on the body (1), the controller (12) is electrically connected to the servo motor (11), and the controller (12) is located on one side of the mounting bracket (2).

6. The winding mechanism for a stretch film machine for PE film production according to claim 1, characterized in that: The mounting bracket (2) has a sliding opening (13) on one side, and the end of the threaded tube (7) away from the roller shaft (5) is rotatably connected to a third turntable (14).

7. The winding mechanism for a stretch film machine for PE film production according to claim 1, characterized in that: The threaded tube (7) has an external thread on its outer side, and a circumferentially distributed groove (15) is opened on the outer side of the threaded tube (7). A circumferentially distributed rod (16) is fixedly connected to the inner wall of the groove (19), and the rod (16) is slidably connected to the groove (15).

8. The winding mechanism for a stretch wrapping machine for PE film production according to claim 1, characterized in that: Two first connecting rods (17) are fixedly connected between the two first turntables (3), and a second connecting rod (18) is fixedly connected between the two rotating belts.

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