A curling device for blown film production

Abstract

This utility model discloses a curling device for blown film production, belonging to the field of blown film production technology. The key technical points include a curling machine body, a pressure-applying component at the top of the machine body, and an auxiliary unloading component at the curling shaft of the machine body. The pressure-applying component includes an L-shaped frame, which is fixedly connected to the top of the frame of the curling machine body. An electric telescopic rod is fixedly connected to the top of the L-shaped frame, and the output rod of the electric telescopic rod passes through the L-shaped frame and is fixedly connected to a support plate. This invention solves the problems of existing blown film curling devices typically lacking an auxiliary pressure-applying structure, which leads to loosening and wrinkling of the blown film during the curling process, affecting the curling quality. Furthermore, existing curling devices often lack an auxiliary unloading structure, making it difficult to disassemble the heavy blown film from the curling shaft after curling, causing inconvenience to operators.

Description

Technical Field

[0001] This utility model relates to the field of blown film production technology, and in particular to a winding device for blown film production. Background Technology

[0002] In the production process of blown film, the winding device is one of the essential pieces of equipment. Its main function is to wind the produced film for storage and transportation.

[0003] Currently, the installation and disassembly of the curling device are both complex. After curling is completed, the curling cylinder needs to be disassembled. The complexity of disassembly increases the working time and reduces the overall production efficiency. The existing patent (publication number: CN217296573U) discloses a polyethylene blown film curling device, including a first connecting plate body and a second connecting plate body. This utility model, through the installation of a positioning block, positioning hole, first threaded fixing plate, second threaded fixing plate, rolling bearing, connecting block, telescopic spring, and telescopic rod body, etc., positions the rotating shaft and the curling cylinder body through the positioning block and positioning hole. Then, the rotating shaft and the curling cylinder body are fixed by the first and second threaded fixing plates. Next, the rolling bearing passes through the second connecting plate body, and the telescopic spring's elasticity springs the telescopic rod body into the rolling bearing for positioning. Then, the other end of the rotating shaft is inserted into the first connecting plate body to complete the installation. Disassembly involves first removing the second connecting plate body from the rotating shaft, then removing the first connecting plate body, then the first threaded fixing plate, and finally detaching the curling cylinder body from the rotating shaft, thus saving production time.

[0004] To address the aforementioned issues, existing patents have provided solutions. However, existing blown film winding devices typically lack auxiliary pressure structures, which can lead to loosening and wrinkling of the blown film during the winding process, thus affecting the winding quality. Furthermore, existing winding devices often lack auxiliary unloading structures, resulting in a heavy blown film that is difficult to remove from the winding shaft after winding, causing inconvenience to operators.

[0005] To address this, a rolling device for blown film production is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a curling device for blown film production, which can solve the problems that existing blown film curling devices usually lack auxiliary pressure structure, and the blown film is prone to loosening and wrinkling during the curling process, thus affecting the curling quality. In addition, existing curling devices usually lack auxiliary unloading structure, and the blown film is heavy after being curled, making it difficult to disassemble from the curling shaft of the curling device, which causes inconvenience to the operator.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a curling device for blown film production, comprising a curling machine body, a pressure application component provided on the top of the curling machine body, and an auxiliary unloading component provided at the curling shaft of the curling machine body; The pressure application assembly includes an L-shaped frame, which is fixedly connected to the top of the frame of the crimping machine body. An electric telescopic rod is fixedly connected to the top of the L-shaped frame. The output rod of the electric telescopic rod passes through the L-shaped frame and is fixedly connected to a support plate. A fixed frame is provided at the bottom of the support plate. A pressure roller is rotatably connected to the inner side of the fixed frame via a bearing. Multiple springs are provided between the support plate and the fixed frame. The top and bottom of the springs are fixedly connected to the support plate and the fixed frame, respectively. A first limiting rod is provided in the inner cavity of the spring. The bottom of the first limiting rod is fixedly connected to the top of the fixed frame. The top of the first limiting rod passes through the support plate and is fixedly connected to a limiting ring.

[0008] Preferably, the auxiliary unloading assembly includes two fixing blocks, which are respectively fixedly connected to both sides of the frame of the curling machine. A multi-section air rod is fixedly connected to the rear side of the fixing block, and the output rod of the multi-section air rod passes through the fixing block and is fixedly connected to a transmission block.

[0009] Preferably, a U-shaped push plate is fixedly connected between the two transmission blocks, and the U-shaped push plate is located on the rear side of the surface of the winding shaft of the winding machine body.

[0010] Preferably, the rear side of the fixing block has a through-hole for use with a multi-section pneumatic rod, and the output rod surface of the multi-section pneumatic rod is slidably connected to the inner wall of the through-hole.

[0011] Preferably, the top of the L-shaped frame has a through hole for use with the electric telescopic rod, and the output rod surface of the electric telescopic rod is slidably connected to the inner wall of the through hole.

[0012] Preferably, the bottom of the support plate is provided with a plurality of first sliding holes that cooperate with the first limiting rod, the surface of the first limiting rod is slidably connected to the inner wall of the first sliding hole, and the bottom of the limiting ring is in contact with the top of the support plate.

[0013] Preferably, auxiliary limiting rods are fixedly connected to the front and rear sides of the top of the support plate, and the top of the auxiliary limiting rods extends through to the top of the L-shaped frame.

[0014] Preferably, the bottom of the L-shaped frame is provided with a second sliding hole on the front and rear sides for use with the auxiliary limiting rod, and the surface of the auxiliary limiting rod is slidably connected to the inner wall of the second sliding hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a pressure-applying component, this application can apply auxiliary pressure to the blown film when the blown film is being rolled by the rolling machine body. This can effectively improve the rolling tightness of the blown film and prevent the blown film from becoming loose or wrinkled during the rolling process, thereby improving the rolling quality. 2. By setting up an auxiliary unloading component, this application can assist in pushing the blown film roll off the winding shaft of the winding machine body for unloading after the blown film is rolled, thereby reducing the labor intensity of the operator and bringing convenience to the operator. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the winding device for blown film production according to this utility model; Figure 2 In this utility model Figure 1 The right-view structural diagram; Figure 3 This is an exploded structural diagram of the pressure application component in this utility model; Figure 4 This is an exploded structural diagram of the auxiliary unloading component in this utility model; Figure 5 This is a structural diagram of the body of the curling machine in this utility model.

[0017] In the diagram, 1. Curling machine body; 2. Pressure application assembly; 201. L-shaped frame; 202. Electric telescopic rod; 203. Support plate; 204. Fixed frame; 205. Pressure roller; 206. Spring; 207. First limiting rod; 208. Limiting ring; 3. Auxiliary unloading assembly; 301. Fixed block; 302. Multi-section air rod; 303. Transmission block; 304. U-shaped push plate; 305. Through port; 4. Through hole; 5. First sliding hole; 6. Auxiliary limiting rod; 7. Second sliding hole. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-5 The present invention provides the following technical solution: A curling device for blown film production includes a curling machine body 1, a pressure application component 2 is provided on the top of the curling machine body 1, and an auxiliary unloading component 3 is provided at the curling shaft of the curling machine body 1. The pressure application assembly 2 includes an L-shaped frame 201, which is fixedly connected to the top of the frame of the curling machine body 1. An electric telescopic rod 202 is fixedly connected to the top of the L-shaped frame 201. The output rod of the electric telescopic rod 202 passes through the L-shaped frame 201 and is fixedly connected to a support plate 203. A fixed frame 204 is provided at the bottom of the support plate 203. A pressure roller 205 is rotatably connected to the inner side of the fixed frame 204 via a bearing. A plurality of springs 206 are provided between the support plate 203 and the fixed frame 204. The top and bottom of the springs 206 are fixedly connected to the support plate 203 and the fixed frame 204, respectively. A first limiting rod 207 is provided in the inner cavity of the springs 206. The bottom of the first limiting rod 207 is fixedly connected to the top of the fixed frame 204. The top of the first limiting rod 207 passes through the support plate 203 and is fixedly connected to a limiting ring 208.

[0020] In this embodiment: by setting up a winding machine body 1, a pressure application component 2, and an auxiliary unloading component 3, during use, the winding machine body 1 can be used to wind the blown film. The pressure application component 2 can apply auxiliary pressure to the blown film during the winding process, which can effectively improve the winding tightness of the blown film and prevent loosening or wrinkling during the winding process, thereby improving the winding quality. The auxiliary unloading component 3 can help push the blown film roll off the winding shaft of the winding machine body 1 for unloading after the blown film is wound, thereby reducing the labor intensity of the operator and bringing convenience to the operator.

[0021] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, the auxiliary unloading assembly 3 includes two fixing blocks 301, which are fixedly connected to both sides of the frame of the curling machine body 1. A multi-section air rod 302 is fixedly connected to the rear side of the fixing block 301. The output rod of the multi-section air rod 302 passes through the fixing block 301 and is fixedly connected to a transmission block 303.

[0022] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, a U-shaped push plate 304 is fixedly connected between the two transmission blocks 303. The U-shaped push plate 304 is located on the rear side of the surface of the winding shaft of the winding machine body 1.

[0023] Specifically, such as Figure 4 As shown, the rear side of the fixing block 301 is provided with a through port 305 for use with the multi-section air rod 302, and the output rod surface of the multi-section air rod 302 is slidably connected to the inner wall of the through port 305.

[0024] In this embodiment: by setting a fixing block 301, a multi-section air spring 302, a transmission block 303, a U-shaped push plate 304, and a through-hole 305, during use, the fixing block 301 can support and fix the multi-section air spring 302. Then, by starting the multi-section air spring 302, the output rod of the multi-section air spring 302 drives the transmission block 303 to move. The transmission block 303 will drive the U-shaped push plate 304 to move. The movement of the U-shaped push plate 304 can help push the blown film roll off the winding shaft of the winding machine body 1 for unloading after the blown film is rolled. This can reduce the labor intensity of the operator and bring convenience to the operator. The through-hole 305 allows the output rod of the multi-section air spring 302 to pass through the fixing block 301 for telescopic output.

[0025] Specifically, such as Figure 3 As shown, the top of the L-shaped frame 201 is provided with a through hole 4 for use with the electric telescopic rod 202, and the output rod surface of the electric telescopic rod 202 is slidably connected to the inner wall of the through hole 4.

[0026] Specifically, such as Figure 3 As shown, the bottom of the support plate 203 is provided with a plurality of first sliding holes 5 that cooperate with the first limiting rod 207. The surface of the first limiting rod 207 is slidably connected to the inner wall of the first sliding hole 5, and the bottom of the limiting ring 208 is in contact with the top of the support plate 203.

[0027] In this embodiment: by providing a through hole 4, the output rod of the electric telescopic rod 202 can pass through the L-shaped frame 201 for telescopic output; by providing a first sliding hole 5, the first limiting rod 207 can pass through the support plate 203 for up and down sliding.

[0028] Specifically, such as Figure 1 , Figure 2 , Figure 3 As shown, auxiliary limiting rods 6 are fixedly connected to the front and rear sides of the top of the support plate 203, and the top of the auxiliary limiting rods 6 extends through to the top of the L-shaped frame 201.

[0029] Specifically, such as Figure 3 As shown, the bottom of the L-shaped frame 201 has a second sliding hole 7 on the front and rear sides, which is used in conjunction with the auxiliary limiting rod 6. The surface of the auxiliary limiting rod 6 is slidably connected to the inner wall of the second sliding hole 7.

[0030] In this embodiment: by setting an auxiliary limiting rod 6, the support plate 203 can be assisted in limiting its movement to prevent it from shaking. By setting a second sliding hole 7, the auxiliary limiting rod 6 can slide up and down through the L-shaped frame 201.

[0031] Working Principle: In use, the blown film core is fixed to the winding shaft of the winding machine body 1, and one end of the blown film is fixed to the core. The winding shaft is then driven by the drive unit of the winding machine body 1 to rotate, which in turn rotates the core to wind the blown film. During the winding process, the electric telescopic rod 202 can be activated, causing its output rod to extend and move the support plate 203 downward. As the support plate 203 moves downward, the spring 206, the fixing frame 204, and the pressure roller 205 also move downward until the bottom of the pressure roller 205 contacts the blown film. As the number of turns of the blown film gradually increases, its outer ring size also gradually increases. At this time, the blown film will exert a pushing force on the pressure roller 205, causing the pressure roller 205 to move upward and drive the fixing frame 204 to squeeze the spring 206. After being squeezed, the spring 206 will push against the fixing frame 204 and the pressure roller 205. Roller 205 generates a reverse thrust, thereby applying pressure to the blown film through the pressure roller 205. This effectively improves the tightness of the blown film roll and prevents loosening and wrinkling during the rolling process, thus improving the rolling quality. During this process, the height of the support plate 203, spring 206, fixing frame 204, and pressure roller 205 can be adjusted according to the rolling situation via the electric telescopic rod 202 to avoid excessive pressure affecting the rolling work. When unloading the blown film roll after rolling is completed, the multi-section air rod 302 can be activated. The output rod of the multi-section air rod 302 drives the transmission block 303 to move. The transmission block 303 drives the U-shaped push plate 304 to move. The movement of the U-shaped push plate 304 helps to push the blown film roll off the rolling shaft of the rolling machine body 1 for unloading, thereby reducing the labor intensity of the operator and bringing convenience to the operator.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A winding device for blown film production, comprising a winding machine body (1), characterized in that: The top of the curling machine body (1) is provided with a pressure application component (2), and the curling shaft of the curling machine body (1) is provided with an auxiliary unloading component (3). The pressure application assembly (2) includes an L-shaped frame (201), which is fixedly connected to the top of the frame of the coiling machine body (1). An electric telescopic rod (202) is fixedly connected to the top of the L-shaped frame (201). The output rod of the electric telescopic rod (202) passes through the L-shaped frame (201) and is fixedly connected to a support plate (203). A fixing frame (204) is provided at the bottom of the support plate (203). A pressure roller (205) is rotatably connected to the inner side of the fixing frame (204) through a bearing. Multiple springs (206) are provided between the support plate (203) and the fixing frame (204). The top and bottom of the springs (206) are fixedly connected to the support plate (203) and the fixing frame (204) respectively. A first limiting rod (207) is provided in the inner cavity of the spring (206). The bottom of the first limiting rod (207) is fixedly connected to the top of the fixing frame (204). The top of the first limiting rod (207) passes through the support plate (203) and is fixedly connected to a limiting ring (208).

2. A crimping device for blown film production according to claim 1, characterized in that: The auxiliary unloading assembly (3) includes two fixed blocks (301), which are fixedly connected to both sides of the frame of the coiling machine body (1). A multi-section air rod (302) is fixedly connected to the rear side of the fixed block (301). The output rod of the multi-section air rod (302) passes through the fixed block (301) and is fixedly connected to a transmission block (303).

3. A crimping device for blown film production according to claim 2, characterized in that: A U-shaped push plate (304) is fixedly connected between the two transmission blocks (303), and the U-shaped push plate (304) is located on the rear side of the surface of the winding shaft of the winding machine body (1).

4. A crimping device for blown film production according to claim 2, characterized in that: The rear side of the fixing block (301) is provided with a through-hole (305) for use with the multi-section air rod (302), and the output rod surface of the multi-section air rod (302) is slidably connected to the inner wall of the through-hole (305).

5. A crimping device for blown film production according to claim 1, characterized in that: The top of the L-shaped frame (201) is provided with a through hole (4) for use with the electric telescopic rod (202), and the output rod surface of the electric telescopic rod (202) is slidably connected to the inner wall of the through hole (4).

6. A crimping device for blown film production according to claim 1, characterized in that: The bottom of the support plate (203) is provided with a plurality of first sliding holes (5) that cooperate with the first limiting rod (207). The surface of the first limiting rod (207) is slidably connected to the inner wall of the first sliding hole (5). The bottom of the limiting ring (208) is in contact with the top of the support plate (203).

7. A crimping device for blown film production according to claim 1, characterized in that: The front and rear sides of the top of the support plate (203) are fixedly connected with auxiliary limiting rods (6), and the top of the auxiliary limiting rods (6) extends through to the top of the L-shaped frame (201).

8. A crimping device for blown film production according to claim 7, characterized in that: The L-shaped frame (201) has a second sliding hole (7) on the front and rear sides of its bottom, which is used in conjunction with the auxiliary limiting rod (6). The surface of the auxiliary limiting rod (6) is slidably connected to the inner wall of the second sliding hole (7).

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