PVC film raw material extrusion device with self-cleaning function

Abstract

The utility model provides a PVC (polyvinyl chloride) film raw material extrusion device with a self-cleaning function. The raw materials of the PVC film have a certain difference, and during extrusion processing, the interior of the PVC film needs to be cleaned, so that the influence of the previous batch of raw materials on the PVC film is avoided, and therefore, the PVC film is convenient to clean. The PVC film raw material extrusion device with the self-cleaning function comprises a barrel, the barrel comprises a front-section extrusion area and a rear-section cleaning area, an extrusion channel is formed in the front section of the barrel, a feeding port and a discharging port are formed in the upper portion and the lower portion of the extrusion channel respectively, a screw rod is slidably installed in the extrusion channel, one end of the screw rod is connected with a first traction rope, and the other end of the screw rod is connected with a second traction rope. The other end of the screw rod is provided with a driven gear, the driven gear is meshed with a main gear, the main gear is installed on a first driving motor above the barrel, the other end of the screw rod is further connected with a second pulling rope, the rear section of the barrel is of an open structure, a cleaning mechanism is arranged below the rear section, and the tail end of the rear section is provided with a positioning groove matched with the end of the screw piece. A second driving motor is installed above the front end of the positioning groove, and a main gear is also installed on an output shaft of the second driving motor.

Description

Technical Field

[0001] The utility model belongs to the technical field of PVC film processing and relates to a PVC film raw material extrusion device with a self-cleaning function. Background Art

[0002] PVC film, also known as Polyvinylchlorid film, is primarily composed of polyvinyl chloride (PVC), with other ingredients added to enhance its heat resistance, toughness, and ductility. As a result, the raw materials used for PVC film vary. During the extrusion process, internal cleaning is necessary to prevent the previous batch of raw materials from affecting the current PVC film. Therefore, to facilitate cleaning, it is necessary to design a PVC film raw material extrusion device with a self-cleaning function. Summary of the Invention

[0003] The purpose of the utility model is to solve the above problems in the existing technology and to propose a PVC film raw material extrusion device with a self-cleaning function.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a PVC film raw material extrusion device with a self-cleaning function, comprising a cylinder, characterized in that the cylinder comprises a front extrusion area and a rear cleaning area, the front section of the cylinder is provided with an extrusion channel, the extrusion channel is respectively provided with a feed port and a discharge port, a screw rod is slidably installed in the extrusion channel, one end of the screw rod is connected to a traction rope 1, the other end of the screw rod is provided with a driven gear, the driven gear is meshed with a main gear, the main gear is installed on a drive motor 1 above the cylinder, the other end of the screw rod is also connected to a traction rope 2, the rear section of the cylinder adopts an open structure, a cleaning mechanism is provided below the rear section, the end of the rear section is provided with a positioning groove matching the end of the spiral member, a drive motor 2 is installed above the front end of the positioning groove, and a main gear is also installed on the output shaft of the drive motor 2.

[0005] The working principle of this new type of device is as follows: the PVC film raw material enters the extrusion channel from the feed port, and the spiral member extrude the PVC film raw material from the discharge port under the drive of the driving member 1; after the extrusion process is completed, the spiral rod is pulled to the rear section of the cylinder by tightening the traction rope 2, so that the end of the spiral rod is stuck in the positioning groove, and at the same time, the slave gear is also engaged with the main gear on the driving motor 2. At this time, the cleaning mechanism and the driving motor 2 are started to rotate and clean the spiral member. After the cleaning is completed, the spiral rod is pulled back into the extrusion channel by the traction rope 1.

[0006] The cleaning mechanism includes a mounting seat, a push rod motor is vertically installed at the center of the mounting seat, the rod of the push rod motor is connected to a water tank, a brush structure is installed in the water tank, and an auxiliary rod is also provided between the water tank and the mounting seat.

[0007] With the above structure, the water tank is raised and lowered by the push rod motor, and the surface of the spiral rod is cleaned by the brush structure. During this period, the auxiliary rod is extended and retracted to assist in supporting the positioning.

[0008] The first traction rope and the second traction rope are both wound on a take-up drum, and the take-up drum is connected to an external driving device.

[0009] With the above structure, the traction rope 1 and the traction rope 2 are wound up by the take-up drum.

[0010] Rotating parts are installed at the connection points of the traction rope 1, the traction rope 2 and the spiral part.

[0011] By adopting the above structure, the traction rope 1 and the traction rope 2 do not rotate together with the screw rod during the extrusion operation.

[0012] An inner bearing structure is installed in the positioning groove.

[0013] With the above structure, the spiral rod rotates synchronously with the spiral rod after being inserted, thus avoiding wear.

[0014] The bottom of the positioning groove is provided with a chamfer.

[0015] The above structure facilitates the insertion of the spiral member.

[0016] Compared with the existing technology, the PVC film raw material extrusion device with self-cleaning function has the following advantages: the utility model sets up a segmented structure, uses gear indirect drive, and cooperates with the traction rope structure to enable the spiral rod to move horizontally, so that it can be easily cleaned after extrusion is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the initial structure of the utility model.

[0018] Figure 2 This is a structural diagram of the spiral rod of the utility model before cleaning.

[0019] Figure 3 It is a structural diagram of the cleaning mechanism in the utility model.

[0020] In the figure, 1. Cylinder; 2. Feed port; 3. Discharge port; 4. Screw rod; 5. Traction rope 1; 6. Driven gear; 7. Main gear; 8. Drive motor 1; 9. Traction rope 2; 10. Positioning groove; 11. Drive motor 2; 12. Mounting seat; 13. Push rod motor; 14. Water tank; 15. Auxiliary rod; 16. Take-up reel; 17. Rotating part; 18. Inner bearing. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] like Figure 1-3 As shown, the PVC film raw material extrusion device with self-cleaning function includes a cylinder 1, and the cylinder 1 includes a front extrusion area and a rear cleaning area. The front section of the cylinder 1 is provided with an extrusion channel, and the extrusion channel is respectively provided with a feed port 2 and a discharge port 3. A screw rod 4 is slidably installed in the extrusion channel, one end of the screw rod 4 is connected to a traction rope 5, and the other end of the screw rod 4 is installed with a driven gear 6, which is engaged with a main gear 7. The main gear 7 is installed on a drive motor 8 above the cylinder 1, and the other end of the screw rod 4 is also connected to a traction rope 2 9. The rear section of the cylinder 1 adopts an open structure, and a cleaning mechanism is provided at the bottom of the rear section. The end of the rear section is provided with a positioning groove 10 that matches the end of the spiral member, and a drive motor 2 11 is installed above the front end of the positioning groove 10, and the main gear 7 is also installed on the output shaft of the drive motor 2 11.

[0023] In the present invention, the first traction rope 5 and the second traction rope 9 are steel wire ropes.

[0024] The dimensions of both ends of the spiral rod 4 in the utility model are adapted to the extrusion channel.

[0025] In the present invention, the length of the spiral rod 4 is greater than the opening length of the rear cleaning area.

[0026] In a specific embodiment, in order to ensure that the gear can accurately move from the drive motor 1 8 to the drive motor 2 11, a guide groove that matches the gear is provided at the top of the rear cleaning area.

[0027] The cleaning mechanism includes a mounting seat 12 , a push rod motor 13 is vertically mounted at the center of the mounting seat 12 , the rod of the push rod motor 13 is connected to a water tank 14 , a brush structure is installed in the water tank 14 , and an auxiliary rod 15 is also provided between the water tank 14 and the mounting seat 12 .

[0028] In the present invention, since the spiral rod 4 needs to be cleaned comprehensively, the brush structure in the cleaning mechanism can be installed in a staggered and interlaced manner to ensure that the brush surface can cover the spiral rod 4.

[0029] The brush structure of the utility model adopts the existing product, and the cleaning liquid is applied through the self-contained spray head and the brush is used for brushing.

[0030] The water tank 14 of the present invention is used to collect the cleaning liquid.

[0031] Both the traction rope 1 5 and the traction rope 2 9 are wound on a take-up drum 16 , and the take-up drum 16 is connected to an external driving device.

[0032] The driving device in the utility model adopts an existing product and is linked with other devices in the utility model for control.

[0033] Rotating parts 17 are installed at the connection points between the traction rope 1 5 and the traction rope 2 9 and the spiral parts.

[0034] An inner bearing 18 is installed in the positioning groove 10 .

[0035] In the present invention, the rotating member 17 and the inner bearing 18 both adopt the existing ball bearing structure.

[0036] The bottom of the positioning groove 10 is chamfered.

[0037] The working principle of the present invention is as follows: the PVC film raw material enters the extrusion channel from the feed port 2, and the spiral member is driven by the driving member 1 to extrude the PVC film raw material from the discharge port 3; after the extrusion process is completed, the spiral rod 4 is pulled to the rear section of the cylinder 1 by tightening the traction rope 2 9, so that the end of the spiral rod 4 is stuck in the positioning groove 10, and at the same time, the slave gear is also engaged with the main gear 7 on the driving motor 2 11. At this time, the cleaning mechanism and the driving motor 2 11 are started to rotate and clean the spiral member. After the cleaning is completed, the spiral rod 4 is pulled back into the extrusion channel by the traction rope 1 5.

[0038] In the utility model, each mechanism is connected and driven by using the existing technology, and synchronous control is achieved through a control panel.

[0039] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A PVC film raw material extrusion device with a self-cleaning function, comprising a barrel (1), characterized in that: The cylinder (1) includes a front extrusion zone and a rear cleaning zone. The front section of the cylinder (1) is provided with an extrusion channel, and the extrusion channel is provided with a feed port (2) and a discharge port (3) at the top and bottom respectively. A screw rod (4) is slidably installed in the extrusion channel. One end of the screw rod (4) is connected to a traction rope (5). The other end of the screw rod (4) is provided with a driven gear (6). The driven gear (6) is engaged with a main gear (7). The main gear (7) is installed on a driving motor (8) above the cylinder (1). The other end of the screw rod (4) is also connected to a traction rope (9). The rear section of the cylinder (1) adopts an open structure. A cleaning mechanism is provided below the rear section. The end of the rear section is provided with a positioning groove (10) that matches the end of the spiral member. A driving motor (11) is installed above the front end of the positioning groove (10). The main gear (7) is also installed on the output shaft of the driving motor (11).

2. A PVC film raw material extrusion device with a self-cleaning function according to claim 1, characterized in that: The cleaning mechanism comprises a mounting seat (12), a push rod motor (13) is vertically mounted at the center of the mounting seat (12), a rod portion of the push rod motor (13) is connected to a water tank (14), a brush structure is mounted in the water tank (14), and an auxiliary rod (15) is further arranged between the water tank (14) and the mounting seat (12).

3. The PVC film raw material extrusion device with self-cleaning function according to claim 1, characterized in that: The traction rope 1 (5) and the traction rope 2 (9) are both wound on a take-up drum (16), and the take-up drum (16) is connected to an external driving device.

4. The PVC film raw material extrusion device with self-cleaning function according to claim 1, characterized in that: Rotating parts (17) are installed at the connection points between the traction rope 1 (5) and the traction rope 2 (9) and the spiral part.

5. The PVC film raw material extrusion device with self-cleaning function according to claim 1, characterized in that: An inner bearing (18) structure is installed in the positioning groove (10).

6. The PVC film raw material extrusion device with self-cleaning function according to claim 1, characterized in that: The bottom of the positioning groove (10) is provided with a chamfer.

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