A winding and extruding device for processing plastic packaging bags

Abstract

The utility model relates to the technical field of plastic packaging bag processing discloses a kind of winding extrusion devices for plastic packaging bag processing, including machine body component, adjusting assembly and extrusion component.Machine body component is wound by winding drum packaging bag, and the extrusion roller of extrusion component is contacted with winding drum to extrude bubble in winding material, and the spring and extrusion block on its side connecting rod can adjust the contact force of extrusion roller and winding drum;Adjusting assembly moves extrusion component by electric cylinder, push-pull rod and other structures drive, adapt to the change of winding drum winding thickness.The device can stably keep extrusion force to efficiently remove bubble, and winding drum is replaced conveniently, improve winding quality and operation convenience, and be applicable to the winding processing of plastic packaging bag.

Description

Technical Field

[0001] This application relates to the field of plastic packaging bag processing technology, specifically to a winding and extrusion device for processing plastic packaging bags. Background Technology

[0002] In the field of plastic packaging bag processing, the winding process plays a crucial role in product quality. Taking the patent CN222877234U, entitled "A Winding Device for Plastic Packaging Bag Production," as an example, while this existing technology uses bidirectional threaded rollers to some extent to prevent wrinkles in the plastic film, it falls short in addressing the issue of air bubbles within the roll during the winding process. In actual production, air bubbles are easily generated during the winding of plastic packaging bags because interlayer air is difficult to completely expel. These bubbles not only affect the tightness of the roll but also cause problems for subsequent processing and use. Furthermore, as winding progresses, the roll diameter gradually increases. Like the aforementioned patent and most traditional winding devices, it is difficult to dynamically adjust the extrusion pressure according to changes in roll diameter, easily leading to insufficient extrusion pressure resulting in residual air bubbles, or excessive extrusion pressure hindering the winding process. In addition, when changing the roll after winding is complete, adjusting the position of the extrusion components in existing devices is often cumbersome, significantly impacting processing efficiency.

[0003] Therefore, it is urgent to develop a rewinding and extrusion device that can stably extrude air bubbles, adaptively adjust the extrusion pressure, and facilitate the replacement of the roll, in order to meet the needs of the plastic packaging bag processing industry for high-quality and high-efficiency production. Summary of the Invention

[0004] To address the aforementioned technical problems, this application solves the issues of air bubbles easily forming inside the roll material during the plastic packaging bag winding process, difficulty in maintaining stable extrusion pressure with changes in roll diameter, and inconvenience in roll replacement.

[0005] To achieve the above objectives, the technical solution adopted in this application is: a winding and extrusion device for processing plastic packaging bags, comprising a body assembly, an adjustment assembly, and an extrusion assembly, wherein the body assembly includes a roll.

[0006] The extrusion assembly includes an extrusion roller, side connecting rods, springs, and extrusion blocks. The two ends of the extrusion roller are provided with side connecting rods, and springs and extrusion blocks are sleeved on the side connecting rods. The two ends of the spring are fixedly connected to the extrusion block and the end of the side connecting rod near the extrusion roller, respectively. By controlling the position of the extrusion block on the side connecting rod, the degree of compression of the spring is adjusted, thereby controlling the contact ability between the extrusion roller and the roll.

[0007] The adjustment assembly includes an electric cylinder, a connecting block, a connecting shaft, and a push-pull rod. The electric cylinder is fixedly installed on the machine body assembly. The output end of the electric cylinder is fixedly connected to the connecting block. The connecting block is sleeved in the middle of the connecting shaft. Push-pull rods are rotatably installed at both ends of the connecting shaft. The end of the push-pull rod near the extrusion block is rotatably connected to the extrusion block.

[0008] Preferably, the machine body assembly includes a base, a support seat, a roller, a support frame, and a support plate. The support seat and the support frame are both fixedly installed on the base. The two ends of the roller are rotatably mounted on the two support seats. The support plate is fixedly installed on the support frame and is in an inclined state. The electric cylinder is fixedly installed on the support plate.

[0009] Preferably, the extrusion assembly includes a side shaft, a side support block, and a strong magnetic sheet. Two side shafts are provided, symmetrically arranged on the extrusion block. The end of the side shaft away from the extrusion block is connected to the side support block. The strong magnetic sheet is installed on the bottom surface of the side support block and has magnetic force.

[0010] Preferably, the extrusion assembly includes a connecting ring and an adjusting ring. The connecting ring is fixedly mounted on the extrusion block and sleeved on the side connecting rod. The connecting ring has a convex ring for guiding the installation of the adjusting ring. The adjusting ring has a thread, and the thread of the adjusting ring matches the thread groove at the end of the side connecting rod away from the extrusion roller. The position of the extrusion block on the side connecting rod and the degree of extrusion of the extrusion block on the spring are controlled by the rotation of the adjusting ring.

[0011] Preferably, the adjustment component includes an arc-shaped block, a mounting block, a guide platform, and a limiting block. An arc-shaped block is provided on each of the two connecting shafts. The arc-shaped block is semi-circular, and the arc-shaped surface faces the electric cylinder. The mounting block is provided on the machine body assembly near the electric cylinder. The shaft of the mounting block supports the guide platform. The guide platform has an S-shaped arc-shaped surface at the end near the arc-shaped block. The limiting block is fixedly provided on the guide platform. The limiting block has an arc-shaped surface at the end near the arc-shaped block, and this arc-shaped surface matches the arc-shaped block.

[0012] Preferably, the adjustment assembly includes a rear connecting shaft and a front connecting shaft. The rear connecting shaft is fixedly connected to the connecting shafts on both sides, and the front connecting shaft is fixedly connected to the extrusion assemblies on both sides. The synchronization of the operation on both sides is ensured by the front connecting shaft and the rear connecting shaft.

[0013] The technical solution provided in this application has the following advantages compared with the prior art:

[0014] 1. This application utilizes spring force to stably control the contact force between the extrusion roller and the roll, ensuring that air bubbles within the roll are continuously and stably extruded during winding, preventing residual air bubbles from affecting the roll's compactness and significantly improving winding quality. Simultaneously, the extrusion roller rotates with the roll, reducing wear on the roll and further guaranteeing the winding effect.

[0015] 2. The adjustment component of this application can adjust the position of the extrusion component according to the change of the winding thickness of the roll. When the diameter of the roll increases, the position of the extrusion component is automatically adjusted to avoid excessive extrusion that hinders winding. In the early stage of winding, it can also ensure sufficient extrusion pressure to squeeze out air bubbles, thus realizing adaptive adjustment for different winding stages and optimizing the winding process.

[0016] 3. When changing the roll, the extrusion roller can be easily controlled to move away from the roll by adjusting the components. This simplifies operation, reduces downtime, and improves processing efficiency. Furthermore, the extrusion components on both sides operate synchronously via a connecting shaft, ensuring uniform force on both ends of the extrusion roller. This avoids differences in bubble extrusion effects caused by uneven force, ensuring stable overall winding quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this application;

[0018] Figure 2 This is a front view of the extrusion assembly of this application;

[0019] Figure 3 This is a schematic diagram of the structure of the adjustment component in this application;

[0020] Figure 4 This is a schematic diagram of the structure of the strong magnetic sheet in this application;

[0021] Figure 5 This is a cross-sectional view of the regulating ring of this application;

[0022] Figure 6 This is a schematic diagram of the guide platform of this application.

[0023] In the diagram: 100-Machine body assembly; 101-Base; 102-Support seat; 103-Roller; 104-Drum; 105-Support frame; 106-Support plate; 200-Adjusting assembly; 201-Electric cylinder; 202-Connecting block; 203-Connecting shaft; 204-Arc block; 205-Push-pull rod; 206-Mounting block; 207-Guide table; 208-Limiting block; 209-Rear connecting shaft; 210-Front connecting shaft; 300-Extrusion assembly; 301-Extrusion roller; 302-Side connecting rod; 303-Spring; 304-Extrusion block; 305-Side shaft; 306-Side support block; 307-Strong magnetic sheet; 308-Connecting ring; 309-Adjusting ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0026] like Figures 1 to 6 As shown, a winding and extrusion device for processing plastic packaging bags includes a body assembly 100, an adjusting assembly 200, and an extrusion assembly 300. The body assembly 100 includes a roll 104. The body assembly 100 is connected to an external plastic packaging bag production line and is connected to a power control unit to wind the roll 104 for packaging bags. The adjusting assembly 200 controls the contact between the extrusion assembly 300 and the roll 104, so that when the roll 104 winds the packaging bag, the air bubbles generated during winding are squeezed through the contact of the extrusion assembly 300. Furthermore, the position of the extrusion assembly 300 is adjusted according to the thickness of the packaging bag wound on the roll 104, thereby avoiding excessive extrusion of the roll 104 by the extrusion assembly 300 without affecting the extrusion of air bubbles on the roll 104, which would affect the winding effect.

[0027] The extrusion assembly 300 includes an extrusion roller 301, a side connecting rod 302, a spring 303, and an extrusion block 304. The two ends of the extrusion roller 301 are rotatably connected with the side connecting rod 302. The extrusion roller 301 contacts the roll 104. When the roll 104 rotates, the tight contact causes the packaging bag roll of the roll 104 to drive the extrusion roller 301 to rotate, thereby extruding air bubbles in the roll and preventing wear on the roll when the extrusion roller 301 is stationary. Each side connecting rod 302 is fitted with a spring 303 and an extrusion block 304. The two ends of the spring 303 are fixedly connected to the extrusion block 304 and the end of the side connecting rod 302 near the extrusion roller 301, respectively. Thus, the operator can adjust the degree of compression of the spring 303 by controlling the position of the extrusion block 304 on the side connecting rod 302. In turn, the elasticity of the spring 303 controls and maintains the contact between the extrusion roller 301 and the roll 104, ensuring the stable extrusion of air bubbles in the roll 104.

[0028] The adjustment assembly 200 includes an electric cylinder 201, a connecting block 202, a connecting shaft 203, and a push-pull rod 205. The two electric cylinders 201 are fixedly installed on both sides of the machine body assembly 100. The output end of each electric cylinder 201 is fixedly connected to a connecting block 202. The connecting block 202 is sleeved in the middle of the connecting shaft 203. A push-pull rod 205 is rotatably installed on each end of the connecting shaft 203. The end of each push-pull rod 205 near the extrusion block 304 is rotatably connected to the side shaft 305 on the extrusion block 304. When the operator is using the machine, by controlling the electric cylinder 201 to start, the output end of the electric cylinder 201 controls the connecting shaft 203 to move closer to or away from the drum 104 through the connecting block 202. Thus, the connecting shaft 203 pushes or pulls the side shaft 305 through the push-pull rods 205 on both sides, and then pushes or pulls the spring 303 through the extrusion block 304. The elastic force of the spring 303 drives the side connecting rod 302 and the extrusion roller 301 to move.

[0029] In the initial state, when the new roll 104 is installed on the support base 102, the extrusion roller 301 has not yet contacted the roll 104. Therefore, when the operator needs to control the extrusion block 304 to push the spring 303 to move closer to the roll 104, the spring 303 directly pushes the side connecting rod 302 and the extrusion roller 301 closer and into contact with the extrusion roller 301 through its elastic force. After contact, under the obstruction of the roll 104, when the extrusion block 304 continues to move, the extrusion block 304 compresses the spring 303, controlling the degree of compression of the spring 303. Thus, when the packaging bag is subsequently wound up, the elastic force of the spring 303 pushes the extrusion roller 301 to make close contact with the packaging bag wound on the roll 104, squeezing out air bubbles.

[0030] When it is necessary to replace the drum 104, the extrusion block 304 is controlled to move away from the drum 104, thereby first releasing the compression of the spring 303, and then by stretching the spring 303, the elastic force of the spring 303 is used to drive the side connecting rod 302 and the extrusion roller 301 away from the drum 104, so as to facilitate the replacement of the drum 104.

[0031] like Figure 1 As shown, the machine body assembly 100 includes a base 101, a support seat 102, a roller 103, a support frame 105, and a support plate 106. The support seat 102 and support frame 105 are both fixedly mounted on the base 101. The two ends of the roller 103 are rotatably mounted on the two support seats 102. The support plate 106 is fixedly mounted on the support frame 105 and is inclined at an angle towards the axis of the roll 104, allowing the extrusion assembly 300 to align with the roll 104 during movement. The electric cylinder 201 is fixedly mounted on the support plate 106. In use, the roll 104 on the roller 103 is driven by the power of an external production line to wind up the packaging bag roll.

[0032] like Figure 2 , Figure 3 and Figure 4 As shown, the extrusion assembly 300 includes a side shaft 305, a side support block 306, and a strong magnetic sheet 307. Two side shafts 305 are provided, symmetrically and fixedly arranged at both ends of the extrusion block 304. The end of the side shaft 305 away from the extrusion block 304 is fixedly connected to the side support block 306. The strong magnetic sheet 307 is mounted on the bottom surface of the side support block 306. The strong magnetic sheet 307 has magnetic force and is attracted to the support plate 106 through magnetic force, thus stably mounting it on the support plate 106 and preventing the extrusion block 304 from rotating around the axis of the side shaft 305 due to the elastic force of the spring 303. When controlling the extrusion roller 301 to move closer to or further away from the drum 104, the side shaft 305 is controlled by the push-pull rod 205, thereby using the power of the electric cylinder 201 to drive the side support block 306 to drive the strong magnetic sheet 307 to slide against the magnetic force on the support plate 106.

[0033] like Figure 4 and Figure 5 As shown, the extrusion assembly 300 includes a connecting ring 308 and an adjusting ring 309. The connecting ring 308 is fixedly mounted on the extrusion block 304 and sleeved on the side connecting rod 302. The connecting ring 308 is provided with a convex ring for guiding the installation of the adjusting ring 309. The adjusting ring 309 is provided with a thread, and the thread of the adjusting ring 309 matches the thread groove at the end of the side connecting rod 302 away from the extrusion roller 301. The position of the extrusion block 304 on the side connecting rod 302 and the degree of extrusion of the extrusion block 304 on the spring 303 are controlled by the rotation of the adjusting ring 309.

[0034] Specifically, before winding, the operator first controls the extrusion roller 301 to contact the drum 104, and then controls the adjusting ring 309 to rotate at the threaded groove end of the side connecting rod 302. Through the threaded engagement, the extrusion block 304 is gradually pushed to slide on the side connecting rod 302, thereby extruding the spring 303 on the side connecting rod 302. The elastic force of the spring 303 increases the contact capacity between the extrusion roller 301 on the side connecting rod 302 and the drum 104, thereby ensuring the extrusion effect during winding. After adjustment to the appropriate level, the rotation of the adjusting ring 309 is no longer controlled. The threaded engagement between the adjusting ring 309 and the side connecting rod 302 fixes the position of the adjusting ring 309 and limits the maximum distance the extrusion block 304 can move away from the extrusion roller 301. Specifically, when the push-pull rod 205 pulls the side shaft 305, the extrusion block 304 contacts the adjusting ring 309 due to the spring force of the spring 303. This causes the extrusion block 304 to directly push the adjusting ring 309, which in turn, through the threaded engagement between the adjusting ring 309 and the side connecting rod 302, moves the side connecting rod 302 away from the roll 104. This causes the extrusion roller 301 to disengage from the roll 104, ceasing to extrude the packaged bag, making it easier for workers to replace the roll 104. When the extrusion capacity of the extrusion roller 301 needs to be adjusted again, simply reposition the adjusting ring 309 on the side connecting rod 302.

[0035] like Figure 6 As shown, the adjustment assembly 200 includes an arc-shaped block 204, a mounting block 206, a guide platform 207, and a limiting block 208. An arc-shaped block 204 is provided on each of the two connecting shafts 203. The arc-shaped block 204 is semi-circular, with its arc surface facing the electric cylinder 201. The mounting block 206 is located on the machine body assembly 100 near the electric cylinder 201. The shaft of the mounting block 206 supports the guide platform 207. The guide platform 207 has an S-shaped arc surface near the arc-shaped block 204. The S-shaped arc surface is divided into upper and lower parts. The lower concave part faces the contact surface between the mounting block 206 and the support plate 106, while the upper convex part faces away from the axis of the mounting block 206. The limiting block 208 is fixedly mounted on the guide platform 207. The limiting block 208 has an arc surface near the arc-shaped block 204, which matches the arc-shaped block 204.

[0036] Specifically, when the connecting shaft 203 controls the push-pull rod 205 to move towards the electric cylinder 201, the arc-shaped block 204 on the push-pull rod 205 first contacts the lower part of the S-shaped arc surface, thereby lifting the arc-shaped block 204 under the guidance of its concave surface. Then, when the arc-shaped block 204 contacts the upper part of the S-shaped arc surface, under the action of its convex arc surface and the pulling force of the connecting shaft 203, the arc-shaped block 204 rotates around the axis of the mounting block 206, driving the push-pull rod 205 and the side shaft 305 to rotate, as well as the strong magnetic sheet 307, the pressing block 304, the side connecting rod 302 and the pressing roller 301, so that the pressing roller 301 rotates around the axis of the mounting block 206, further away from the drum 104, making it convenient for the staff to replace the drum 104 and perform other operations. When the arc block 204 is reset, it is pushed out by the control connecting shaft 203 and under the action of gravity of parts such as the push-pull rod 205, the arc block 204 rotates around the axis of the mounting block 206, and finally the strong magnetic sheet 307 contacts the support plate 106 again and is magnetically attracted to the support plate 106.

[0037] When the arc-shaped block 204 rotates around the axis of the mounting block 206, the arc-shaped surface of the limiting block 208 on the guide platform 207 blocks the arc-shaped block 204, causing the arc-shaped surface of the arc-shaped block 204 to enter the arc-shaped surface of the limiting block 208, thus achieving stable blocking and preventing further rotation.

[0038] like Figure 3 As shown, the adjustment assembly 200 includes a rear connecting shaft 209 and a front connecting shaft 210. The rear connecting shaft 209 is fixedly connected to the connecting shafts 203 on both sides, and the front connecting shaft 210 is fixedly connected to the extrusion assemblies 300 on both sides. The front connecting shaft 210 and the rear connecting shaft 209 ensure the synchronicity of the operation on both sides. The extrusion assemblies 300 and the arc-shaped blocks 204 on both sides are connected by the front connecting shaft 210 and the rear connecting shaft 209, so that they can move together, ensuring the synchronicity of movement and avoiding different extrusion capacities at both ends of the extrusion roller 301, which would result in different bubble extrusion effects.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A winding and extrusion device for processing plastic packaging bags, characterized in that, It includes a body assembly (100), an adjustment assembly (200), and an extrusion assembly (300), wherein the body assembly (100) includes a drum (104); The extrusion assembly (300) includes an extrusion roller (301), a side connecting rod (302), a spring (303), and an extrusion block (304). The two ends of the extrusion roller (301) are provided with side connecting rods (302). The spring (303) and the extrusion block (304) are sleeved on the side connecting rods (302). The two ends of the spring (303) are fixedly connected to the extrusion block (304) and the end of the side connecting rod (302) near the extrusion roller (301), respectively. By controlling the position of the extrusion block (304) on the side connecting rod (302), the degree of compression of the spring (303) is adjusted, thereby controlling the contact ability between the extrusion roller (301) and the drum (104). The adjustment assembly (200) includes an electric cylinder (201), a connecting block (202), a connecting shaft (203), and a push-pull rod (205). The electric cylinder (201) is fixedly installed on the machine body assembly (100). The output end of the electric cylinder (201) is fixedly connected to the connecting block (202). The connecting block (202) is sleeved in the middle of the connecting shaft (203). Push-pull rods (205) are rotatably provided at both ends of the connecting shaft (203). The end of the push-pull rod (205) near the extrusion block (304) is rotatably connected to the extrusion block (304).

2. The winding and extrusion device for processing plastic packaging bags according to claim 1, characterized in that, The machine body assembly (100) includes a base (101), a support seat (102), a roller (103), a support frame (105), and a support plate (106). The support seat (102) and the support frame (105) are both fixedly installed on the base (101). The two ends of the roller (103) are rotatably mounted on the two support seats (102). The support plate (106) is fixedly mounted on the support frame (105) and is in an inclined state. The electric cylinder (201) is fixedly installed on the support plate (106).

3. The winding and extrusion device for processing plastic packaging bags according to claim 1, characterized in that, The extrusion assembly (300) includes a side shaft (305), a side support block (306), and a strong magnetic sheet (307). There are two side shafts (305), which are symmetrically arranged on the extrusion block (304). The end of the side shaft (305) away from the extrusion block (304) is connected to the side support block (306). The strong magnetic sheet (307) is installed on the bottom surface of the side support block (306) and has magnetic force.

4. The winding and extrusion device for processing plastic packaging bags according to claim 1, characterized in that, The extrusion assembly (300) includes a connecting ring (308) and an adjusting ring (309). The connecting ring (308) is fixedly mounted on the extrusion block (304) and sleeved on the side connecting rod (302). The connecting ring (308) is provided with a protruding ring for guiding the installation of the adjusting ring (309). The adjusting ring (309) is provided with a thread. The thread of the adjusting ring (309) matches the thread groove at the end of the side connecting rod (302) away from the extrusion roller (301). The position of the extrusion block (304) on the side connecting rod (302) and the degree of extrusion of the extrusion block (304) on the spring (303) are controlled by the rotation of the adjusting ring (309).

5. The winding and extrusion device for processing plastic packaging bags according to claim 1, characterized in that, The adjustment assembly (200) includes an arc block (204), a mounting block (206), a guide platform (207), and a limiting block (208). An arc block (204) is provided on each of the two connecting shafts (203). The arc block (204) is semi-circular, and the arc surface faces the electric cylinder (201). The mounting block (206) is provided on the machine body assembly (100) at one end near the electric cylinder (201). The shaft of the mounting block (206) supports the guide platform (207). The guide platform (207) is provided with an S-shaped arc surface at one end near the arc block (204). The limiting block (208) is fixedly provided on the guide platform (207). The limiting block (208) is provided with an arc surface at one end near the arc block (204), and the arc surface matches the arc block (204).

6. The winding and extrusion device for processing plastic packaging bags according to claim 1, characterized in that, The adjustment assembly (200) includes a rear connecting shaft (209) and a front connecting shaft (210). The rear connecting shaft (209) is fixedly connected to the connecting shafts (203) on both sides, and the front connecting shaft (210) is fixedly connected to the extrusion assemblies (300) on both sides. The synchronization of the operation on both sides is ensured by the front connecting shaft (210) and the rear connecting shaft (209).

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