A multi-layer co-extrusion device for avoiding material adhesion

Abstract

The present invention relates to the technical field of multi-layer co-extrusion equipment, and specifically to a multi-layer co-extrusion equipment for preventing material adhesion, comprising an equipment box, a mixing and stirring mechanism provided inside the material box body, an anti-adhesion mechanism provided on the surface of the push plate, and a convenient switching mechanism provided on the surfaces of the extrusion tube, the No. 1 extrusion head, the No. 2 extrusion head, the No. 3 extrusion head, and the No. 4 extrusion head. The present invention not only enables the multi-layer co-extrusion equipment to prevent excessive accumulation of materials in the material box body and the occurrence of accumulation and bridging, thereby greatly improving the smoothness of operation, and preventing materials from adhering to the inner cavity wall of the extrusion box when the multi-layer co-extrusion equipment is in use, thereby avoiding the problem of scaling of the inner cavity wall of the extrusion box in the long term, but also ensures the accuracy of the size of the material extruded by the multi-layer co-extrusion equipment, so as to adapt to extrusion of different sizes, thereby meeting the production needs of extruded strips of different sizes, and being more convenient to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-layer co-extrusion equipment, in particular to a multi-layer co-extrusion equipment for preventing material adhesion. Background Art

[0002] The extruder is an important equipment in polymer material processing machinery. During the extrusion process, the plastic loaded into the hopper enters the barrel with the help of gravity or the feeding screw, and continues to move forward under the thrust of the rotating screw. The plastic is transformed from a solid state to a molten viscous material under the stirring and extrusion action of the screw, the external heat transfer of the barrel, and the shear friction between the plastic and the equipment. The plasticized plastic is pushed into the head of the machine for extrusion molding under the action of the screw.

[0003] First, the multi-layer co-extrusion equipment needs to mix and stir the materials inside the material box when in use. The existing multi-layer co-extrusion equipment usually needs to separately mix and stir the materials inside the material box when in use. This enables the multi-layer co-extrusion equipment to prevent the material from accumulating too much in the material box body and causing bridging, which greatly reduces the smoothness of the operation; secondly, when the multi-layer co-extrusion equipment is in use, the material is easy to stick to the inner wall of the extrusion box. The existing multi-layer co-extrusion equipment is usually not convenient to scrape the material adhered to the inner wall of the extrusion box, which easily causes the material to adhere to the inner cavity wall of the extrusion box when the multi-layer co-extrusion equipment is in use. This will easily cause scaling on the inner cavity wall of the extrusion box in a long time; thirdly, according to different user needs, the size and diameter requirements of the material extrusion strips are also different. The existing multi-layer co-extrusion equipment can usually only extrude extrusion strips of one diameter when in use, and it is inconvenient to switch extrusion heads of different diameters. This cannot guarantee the accuracy of the material size extruded by the multi-layer co-extrusion equipment, does not meet the production needs of extrusion strips of different sizes, and is not convenient to operate. Summary of the Invention

[0004] The object of the present invention is to provide a multi-layer co-extrusion device that avoids material adhesion, so as to solve the problems proposed in the above-mentioned background technology that the multi-layer co-extrusion device needs to separately mix and stir the materials inside the material box when in use, which makes it inconvenient to scrape off the materials adhered to the inner wall of the extrusion box, and can only extrude extrusion strips of one diameter, making it inconvenient to switch extrusion heads of different diameters.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a multi-layer co-extrusion device for preventing material adhesion, comprising an equipment box, a control button is installed on the surface of the equipment box, fixed boxes are installed on the surfaces of both sides of the equipment box, a material box body is installed inside the fixed box, a feed port is opened on the surface of the fixed box, and the feed port is connected to the interior of the material box body, an extrusion box is installed inside the equipment box, the extrusion box is connected to the interior of the material box body, a push plate is provided inside the extrusion box, an electric push rod is installed on the surface at the top position of the equipment box, an extrusion tube is provided below the equipment box, a conveying tube is installed on the surface at the top position of the extrusion tube, the top end of the conveying tube passes through the equipment box and the extrusion box respectively and extends to the interior of the extrusion box, the other end of the conveying tube passes through the push plate and extends to the interior of the push plate, a No. 1 extrusion head is provided on the surface of the extrusion tube, the No. 1 extrusion head and the surface of the push plate are rotatably matched with each other, and a No. 3 extrusion head is provided on the surface of the extrusion tube. The surface of the No. 3 extrusion head and the surface of the extrusion tube are rotatably matched with each other, the surface of the extrusion tube is provided with a No. 2 extrusion head, and the No. 2 extrusion head and the surface of the extrusion tube are rotatably matched with each other, the surface of the extrusion tube is provided with a No. 4 extrusion head, and the surface of the No. 4 extrusion head and the surface of the extrusion tube are rotatably matched with each other, the No. 1 extrusion head, No. 2 extrusion head, No. 3 extrusion head and No. 4 extrusion head are respectively located below the equipment box, and the No. 1 extrusion head, No. 2 extrusion head, No. 3 extrusion head and No. 4 extrusion head are respectively symmetrically distributed along the circumference of the extrusion tube, and a mixing and stirring mechanism is provided inside the material box body, and the mixing and stirring mechanism consists of an agitator, a drive motor, a rotating shaft and a stirring rod, and an anti-adhesion mechanism is provided on the surface of the push plate, and the anti-adhesion mechanism consists of an elastic component, an elastic column and an anti-adhesion component, and the surfaces of the extrusion tube, No. 1 extrusion head, No. 2 extrusion head, No. 3 extrusion head and No. 4 extrusion head are all provided with a convenient switching mechanism, and the interior of the convenient switching mechanism includes fastening bolts, fixing screw holes and a convenient switching group.

[0006] Preferably, the input end of the electric push rod is electrically connected to the output end of the control button, the output end of the electric push rod sequentially passes through the equipment box and the extrusion box and is fixed to the surface at the top of the push plate, the surface of the extrusion box is installed with a heating wire for heating the inside of the extrusion box, and the inner wall of the equipment box is installed with a temperature monitor.

[0007] Preferably, the anti-adhesion component is arranged on the surface of the pusher plate, and the anti-adhesion component is composed of a connecting frame and a scraper plate. The connecting frame is installed on the surface of the pusher plate, and a scraper plate for scraping off the material stuck on the inner wall of the extrusion box is arranged inside the connecting frame. The surface of the scraper plate is in contact with the inner wall of the extrusion box, and the scraper plate and the inner wall of the connecting frame slide with each other.

[0008] Preferably, the inner wall of the connecting frame is installed with elastic columns at equal intervals, one end of the elastic columns is fixed to the surface of the scraper plate, and the inner wall of the connecting frame is installed with elastic components at equal intervals, one end of the elastic components is fixed to the surface of the scraper plate.

[0009] Preferably, a drive motor is installed on the surface at the top position of the material box body, the input end of the drive motor is electrically connected to the output end of the control button, and an agitator is provided inside the material box body, and the agitator and the inner wall of the material box body rotate in cooperation with each other.

[0010] Preferably, a rotating shaft is installed at the output end of the driving motor through a coupling, one end of the rotating shaft passes through the material box body and is fixed to the surface of the agitator, and the surface of the agitator is installed with stirring rods at equal intervals for stirring the material.

[0011] Preferably, the convenient switching group is arranged on the surface of the extrusion tube, the No. 1 extrusion head, the No. 2 extrusion head, the No. 3 extrusion head and the No. 4 extrusion head, the convenient switching group is composed of a positioning slot and a positioning block, the surface of the extrusion tube is provided with a fixing screw hole, the surface of the No. 1 extrusion head, the No. 2 extrusion head, the No. 3 extrusion head and the No. 4 extrusion head are all threadedly connected with a fastening bolt, one end of the fastening bolt passes through the No. 1 extrusion head, the No. 2 extrusion head, the No. 3 extrusion head and the No. 4 extrusion head respectively and is threadedly fastened with the inner wall of the fixing screw hole.

[0012] Preferably, the fastening bolts are rotatably engaged with the surfaces of the No. 1 extrusion head, the No. 2 extrusion head, the No. 3 extrusion head and the No. 4 extrusion head; positioning blocks are installed on the surfaces of the No. 1 extrusion head, the No. 2 extrusion head, the No. 3 extrusion head and the No. 4 extrusion head; positioning slots are provided on the surfaces of the extrusion tubes; the positioning slots are engaged with the surfaces of the positioning blocks.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the multi-layer co-extrusion device for preventing material adhesion not only enables the multi-layer co-extrusion device to prevent excessive accumulation of materials in the material box body and the occurrence of accumulation and bridging, thereby greatly improving the smoothness of operation, and preventing the material from adhering to the inner cavity wall of the extrusion box when the multi-layer co-extrusion device is in use, thereby avoiding the problem of scaling of the inner cavity wall of the extrusion box in such a long time, but also ensures the accuracy of the size of the material extruded by the multi-layer co-extrusion device, so as to adapt to extrusion of different sizes, thereby meeting the production needs of extruded strips of different sizes, and is more convenient and easy to operate;

[0014] By providing a mixing and stirring mechanism, the driving motor on the surface of the material box body is controlled to work, and the rotating shaft is driven to rotate under the action of the driving motor. When the rotating shaft rotates, the rotating shaft drives the agitator inside the material box body to rotate, and the agitator drives the stirring rod to rotate inside the material box body. Under the joint action of the agitator and the stirring rod, the materials inside the material box body are stirred and mixed, so that the materials are more uniform when they are discharged, and the discharge efficiency is improved. The function of mixing and stirring the materials inside the material box body of the multi-layer co-extrusion equipment is realized, so that the multi-layer co-extrusion equipment can prevent the materials from accumulating too much in the material box body and causing bridging, thereby greatly improving the smoothness of the work.

[0015] By providing an anti-adhesion mechanism, when the push plate moves inside the extrusion box, the push plate drives the connecting frame to move, and the elastic force of the elastic component and the elastic column inside the connecting frame drives the scraper plate to move, ensuring that the scraper plate always moves to contact the inner wall of the extrusion box. Under the action of the scraper plate, the material adhered to the inner wall of the extrusion box is scraped off. At the same time, the scraper plate does not affect the extrusion of the material, realizing the function of the multi-layer co-extrusion equipment to prevent the material from adhering to the inner wall of the extrusion box, thereby preventing the material from adhering to the inner wall of the extrusion box when the multi-layer co-extrusion equipment is used, and avoiding the problem of scaling of the inner wall of the extrusion box caused by such a long-term situation.

[0016] By providing a convenient switching mechanism, the user can choose to rotate the No. 1 extrusion head, No. 2 extrusion head, No. 3 extrusion head or No. 4 extrusion head on the surface of the extrusion tube according to needs, so that the No. 1 extrusion head, No. 2 extrusion head, No. 3 extrusion head or No. 4 extrusion head rotates to the surface of the extrusion tube. When the No. 1 extrusion head, No. 2 extrusion head, No. 3 extrusion head or No. 4 extrusion head rotates, the No. 1 extrusion head, No. 2 extrusion head, No. 3 extrusion head or No. 4 extrusion head drives the positioning block away from the inside of the positioning card slot. Subsequently, when the No. 1 extrusion head, No. 2 extrusion head, No. 3 extrusion head or No. 4 extrusion head moves to fit the surface of the extrusion tube, The user rotates the fastening bolt, and fixes the No. 1 extrusion head, No. 2 extrusion head, No. 3 extrusion head or No. 4 extrusion head on the surface of the extrusion tube with the cooperation of the fastening bolt and the thread of the fixing screw hole. The extruded material is extruded into extrusion strips of different diameters according to the different surface apertures of the No. 1 extrusion head, No. 2 extrusion head, No. 3 extrusion head or No. 4 extrusion head, thereby realizing the function of convenient switching of extrusion heads of different diameters of the multi-layer co-extrusion equipment, thereby ensuring the accuracy of the size of the material extruded by the multi-layer co-extrusion equipment, so as to adapt to extrusion of different sizes, thereby meeting the production needs of extrusion strips of different sizes, and being more convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the present invention;

[0019] Figure 3 It is a schematic diagram of an enlarged bottom-view cross-section of the extruded tube of the present invention;

[0020] Figure 4 For the present invention Figure 2 A schematic diagram of the enlarged structure of the anti-adhesion mechanism;

[0021] Figure 5 For the present invention Figure 2 Schematic diagram of the enlarged structure of the mixing and stirring mechanism;

[0022] Figure 6 It is an enlarged structural schematic diagram of the convenient switching mechanism of the present invention.

[0023] In the figure: 1. Equipment box; 101. Control button; 102. Fixing box; 103. Electric push rod; 104. Material box body; 105. Heating wire; 106. Temperature monitor; 107. Extrusion box; 108. Delivery pipe; 109. Push plate; 110. Extrusion pipe; 111. Extrusion head No. 1; 112. Extrusion head No. 2; 113. Extrusion head No. 3; 114. Extrusion head No. 4; 2. Anti-adhesion mechanism; 201. Elastic component; 202. Elastic column; 203. Anti-adhesion component; 2031. Connecting frame; 2032. Scraper; 3. Mixing and stirring mechanism; 301. Agitator; 302. Driving motor; 303. Rotating shaft; 304. Stirring rod; 4. Convenient switching mechanism; 401. Fastening bolt; 402. Fixing screw hole; 403. Convenient switching group; 4031. Positioning slot; 4032. Positioning block. Implementation Method

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] The present invention provides a multi-layer co-extrusion device for preventing material adhesion. Figure 1 and Figure 2As shown, it includes an equipment box 1, a control button 101 is installed on the surface of the equipment box 1, and the model of the control button 101 can be selected from the LA series. Fixed boxes 102 are installed on the surfaces of both sides of the equipment box 1, and a material box body 104 is installed inside the fixed box 102. A feed port is opened on the surface of the fixed box 102, and the feed port is connected to the inside of the material box body 104. An extrusion box 107 is installed inside the equipment box 1, and the extrusion box 107 is connected to the inside of the material box body 104. A push plate 109 is provided inside the extrusion box 107. The top position of the equipment box 1 The surface of each part is equipped with an electric push rod 103. The model of the electric push rod 103 can be DG series. The input end of the electric push rod 103 is electrically connected to the output end of the control button 101. The output end of the electric push rod 103 sequentially passes through the equipment box 1 and the extrusion box 107 and is fixed to the surface at the top position of the push plate 109. The surface of the extrusion box 107 is equipped with a heating wire 105 for heating the inside of the extrusion box 107. The inner wall of the equipment box 1 is equipped with a temperature monitor 106. An extrusion tube 110 is provided below the equipment box 1. The extrusion tube 110 A conveying pipe 108 is installed on the surface at the top position. The top end of the conveying pipe 108 passes through the equipment box 1 and the extrusion box 107 respectively and extends to the interior of the extrusion box 107. The other end of the conveying pipe 108 passes through the push plate 109 and extends to the interior of the push plate 109. A No. 1 extrusion head 111 is provided on the surface of the extrusion tube 110. The No. 1 extrusion head 111 and the surface of the push plate 109 rotate with each other. A No. 3 extrusion head 113 is provided on the surface of the extrusion tube 110. The surface of the No. 3 extrusion head 113 and the surface of the extrusion tube 110 rotate with each other. 0 is provided with a No. 2 extrusion head 112, which rotates with the surface of the extrusion tube 110. A No. 4 extrusion head 114 is provided on the surface of the extrusion tube 110, which rotates with the surface of the No. 4 extrusion head 114. The surface of the No. 4 extrusion head 114 rotates with the surface of the extrusion tube 110. The No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 and the No. 4 extrusion head 114 are respectively located below the equipment box 1, and the No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 and the No. 4 extrusion head 114 are respectively distributed symmetrically along the circumference of the extrusion tube 110.

[0026] Furthermore, if Figure 2 and Figure 5As shown, a mixing and stirring mechanism 3 is provided inside the material box body 104, and the mixing and stirring mechanism 3 consists of an agitator 301, a drive motor 302, a rotating shaft 303 and a stirring rod 304. The drive motor 302 is installed on the surface at the top position of the material box body 104. The model of the drive motor 302 can be selected from the JO series. The input end of the drive motor 302 is electrically connected to the output end of the control button 101. The agitator 301 is provided inside the material box body 104. The agitator 301 and the inner wall of the material box body 104 rotate with each other. The output end of the drive motor 302 is installed with a rotating shaft 303 through a coupling. One end of the rotating shaft 303 passes through the material box body 104 and is fixed to the surface of the agitator 301. The surface of the agitator 301 is installed with stirring rods 304 at equal intervals for stirring the material.

[0027] During implementation, the drive motor 302 on the surface of the material box body 104 is controlled to work, and the rotating shaft 303 is driven to rotate under the action of the drive motor 302. When the rotating shaft 303 rotates, the rotating shaft 303 drives the agitator 301 inside the material box body 104 to rotate, and the agitator 301 drives the stirring rod 304 to rotate inside the material box body 104. Under the joint action of the agitator 301 and the stirring rod 304, the material inside the material box body 104 is stirred and mixed, so that the material is more uniform when discharged, and the discharge efficiency is improved, so as to realize the function of the multi-layer co-extrusion equipment to mix and stir the material inside the material box body 104.

[0028] Furthermore, if Figure 2 and Figure 4 As shown, the surface of the push plate 109 is provided with an anti-adhesion mechanism 2, which is composed of an elastic component 201, an elastic column 202 and an anti-adhesion component 203. The anti-adhesion component 203 is provided on the surface of the push plate 109, and the anti-adhesion component 203 is composed of a connecting frame 2031 and a scraper plate 2032. The surface of the push plate 109 is provided with a connecting frame 2031, and the interior of the connecting frame 2031 is provided with a scraper for scraping off the material stuck to the inner wall of the extrusion box 107. The material plate 2032 and the surface of the scraper plate 2032 are in contact with the inner wall of the extrusion box 107. The scraper plate 2032 and the inner wall of the connecting frame 2031 slide with each other. The inner wall of the connecting frame 2031 is installed with elastic columns 202 at equal intervals. One end of the elastic column 202 is fixed to the surface of the scraper plate 2032. The inner wall of the connecting frame 2031 is installed with elastic components 201 at equal intervals. One end of the elastic component 201 is fixed to the surface of the scraper plate 2032.

[0029] During implementation, the push plate 109 drives the connecting frame 2031 to move, and the scraper plate 2032 is driven to move under the elastic force of the elastic component 201 and the elastic column 202 inside the connecting frame 2031, ensuring that the scraper plate 2032 always moves to contact the inner wall of the extrusion box 107, and the material adhered to the inner wall of the extrusion box 107 is scraped off under the action of the scraper plate 2032. At the same time, the scraper plate 2032 will not affect the extrusion of the material, so as to realize the function of the multi-layer co-extrusion equipment to prevent the material from adhering to the inner wall of the extrusion box 107.

[0030] Furthermore, if Figure 3 and Figure 6 As shown, the surfaces of the extrusion tube 110, the No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 and the No. 4 extrusion head 114 are all provided with a convenient switching mechanism 4, and the interior of the convenient switching mechanism 4 includes a fastening bolt 401, a fixing screw hole 402 and a convenient switching group 403, and the convenient switching group 403 is provided on the surface of the extrusion tube 110, the No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 and the No. 4 extrusion head 114, and the convenient switching group 403 is composed of a positioning card groove 4031 and a positioning card block 4032. The surface of the extrusion tube 110 is provided with a fixing screw hole 402, and the No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 and the No. 4 extrusion head 1 The surfaces of the extrusion heads 111, 112, 113 and 114 are all threadedly connected with fastening bolts 401, and one end of the fastening bolts 401 respectively passes through the No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 and the No. 4 extrusion head 114 and is threadedly fastened with the inner wall of the fixing screw hole 402, and the fastening bolts 401 and the surfaces of the No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 and the No. 4 extrusion head 114 are rotated and matched with each other, and the surfaces of the No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 and the No. 4 extrusion head 114 are all installed with positioning blocks 4032, and the surfaces of the extrusion tube 110 are all provided with positioning slots 4031, and the positioning slots 4031 and the surfaces of the positioning blocks 4032 are engaged with each other.

[0031] During implementation, the No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 or the No. 4 extrusion head 114 drives the positioning block 4032 away from the inside of the positioning slot 4031. Then, when the No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 or the No. 4 extrusion head 114 moves to fit the surface of the extrusion tube 110, the user rotates the fastening bolt 401, and the No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 or the No. 4 extrusion head 114 is fixed to the surface of the extrusion tube 110 under the thread cooperation of the fastening bolt 401 and the fixing screw hole 402. The extruded material is extruded into extrusion strips of different diameters according to the different surface apertures of the No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 or the No. 4 extrusion head 114, so as to realize the function of convenient switching of extrusion heads of different diameters in the multi-layer co-extrusion equipment.

[0032] Working principle: When in use, first place the equipment box 1 at the designated position, and the user introduces the material into the interior of the material box body 104 through the feed port on the surface of the fixed box 102, and the material enters the interior of the extrusion box 107. At this time, the user operates the control button 101, so that the control button 101 controls the driving motor 302 on the surface of the material box body 104 to work, and under the action of the driving motor 302, the rotating shaft 303 is driven to rotate. When the rotating shaft 303 rotates, the rotating shaft 303 drives the agitator 301 inside the material box body 104 to rotate, and the agitator 301 drives the stirring rod 304 to rotate inside the material box body 104. Under the joint action of the agitator 301 and the stirring rod 304, the material inside the material box body 104 is stirred and mixed, so that the material is more uniform when unloading, and the unloading efficiency is improved, so as to realize the function of mixing and stirring the material inside the material box body 104 of the multi-layer co-extrusion equipment, thereby preventing the material from accumulating too much in the material box body 104 and causing bridging, thereby greatly improving the smoothness of the work.

[0033] Subsequently, the user operates the control button 101, so that the control button 101 controls the electric push rod 103 to work, and the push plate 109 is driven to move inside the extrusion box 107 under the action of the electric push rod 103. Under the action of the push plate 109, the material inside the extrusion box 107 is layered and extruded. At this time, the material is easy to adhere to the inner wall of the extrusion box 107. At this time, when the push plate 109 moves inside the extrusion box 107, the push plate 109 drives the connecting frame 2031 to move. The elastic component 201 and the elastic component 2031 inside the connecting frame 2031 are connected. The elastic force of the column 202 drives the scraper plate 2032 to move, ensuring that the scraper plate 2032 always moves to contact the inner wall of the extrusion box 107. Under the action of the scraper plate 2032, the material adhered to the inner wall of the extrusion box 107 is scraped off. At the same time, the scraper plate 2032 will not affect the extrusion of the material, so as to realize the function of the multi-layer co-extrusion equipment to prevent the material from adhering to the inner wall of the extrusion box 107, thereby avoiding the material from adhering to the inner cavity wall of the extrusion box 107 when the multi-layer co-extrusion equipment is used, and avoiding the problem of scaling of the inner cavity wall of the extrusion box 107 for a long time.

[0034] Afterwards, the material is squeezed into the interior of the conveying tube 108, and then enters the interior of the extrusion tube 110 through the conveying tube 108, and the material is extruded through the extrusion tube 110. If the user needs extrusion strips of different sizes, at this time, the user chooses to rotate the No. 1 extrusion head 111, No. 2 extrusion head 112, No. 3 extrusion head 113 or No. 4 extrusion head 114 on the surface of the extrusion tube 110 as needed, so that the No. 1 extrusion head 111, No. 2 extrusion head 112, No. 3 extrusion head 113 or No. 4 extrusion head 114 rotate to the surface of the extrusion tube 110. When the No. 1 extrusion head 111, No. 2 extrusion head 112, No. 3 extrusion head 113 or No. 4 extrusion head 114 rotates, the No. 1 extrusion head 111, No. 2 extrusion head 112, No. 3 extrusion head 113 or No. 4 extrusion head 114 drives the positioning block 4032 away from the interior of the positioning slot 4031. Subsequently, when the No. 1 extrusion head 111, No. 2 extrusion head 112, No. 3 extrusion head 113 or No. 4 extrusion head 114 When the No. 1 extrusion head 112, the No. 3 extrusion head 113 or the No. 4 extrusion head 114 moves to fit with the surface of the extrusion tube 110, the user rotates the fastening bolt 401, and fixes the No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 or the No. 4 extrusion head 114 to the surface of the extrusion tube 110 under the thread cooperation of the fastening bolt 401 and the fixing screw hole 402. The extruded material is extruded into extrusion strips of different diameters according to the different surface apertures of the No. 1 extrusion head 111, the No. 2 extrusion head 112, the No. 3 extrusion head 113 or the No. 4 extrusion head 114, so as to realize the function of convenient switching of extrusion heads of different diameters of the multi-layer co-extrusion equipment, thereby ensuring the accuracy of the material size extruded by the multi-layer co-extrusion equipment, so as to adapt to extrusion of different sizes, thereby meeting the production needs of extrusion strips of different sizes, and being more convenient to operate, and finally completing the use of the multi-layer co-extrusion equipment.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A multi-layer co-extrusion device for preventing material adhesion, comprising a device box (1), characterized in that: The surface of the equipment box (1) is installed with a control button (101), the surfaces of both sides of the equipment box (1) are installed with a fixed box (102), the interior of the fixed box (102) is installed with a material box body (104), the surface of the fixed box (102) is provided with a feed port, and the feed port is connected to the interior of the material box body (104), the interior of the equipment box (1) is installed with an extrusion box (107), the extrusion box (107) is connected to the interior of the material box body (104), and the interior of the extrusion box (107) is provided with a push plate (109), the surface at the top position of the equipment box (1) is installed with an electric push rod (103), and the bottom of the equipment box (1) is provided with an extrusion tube (110). A conveying pipe (108) is installed on the surface of the top position of the extrusion tube (110), and the top end of the conveying pipe (108) passes through the equipment box (1) and the extrusion box (107) respectively and extends to the inside of the extrusion box (107). The other end of the conveying pipe (108) passes through the push plate (109) and extends to the inside of the push plate (109). The surface of the extrusion tube (110) is provided with a No. 1 extrusion head (111), and the surface of the No. 1 extrusion head (111) and the surface of the push plate (109) are rotated together. The surface of the extrusion tube (110) is provided with a No. 3 extrusion head (113), and the surface of the No. 3 extrusion head (113) and the surface of the extrusion tube (110) are rotated together. The surface is provided with a No. 2 extrusion head (112), and the No. 2 extrusion head (112) and the surface of the extrusion tube (110) are rotatably matched with each other. The surface of the extrusion tube (110) is provided with a No. 4 extrusion head (114), and the surface of the No. 4 extrusion head (114) and the surface of the extrusion tube (110) are rotatably matched with each other. The No. 1 extrusion head (111), the No. 2 extrusion head (112), the No. 3 extrusion head (113) and the No. 4 extrusion head (114) are respectively located below the equipment box (1). The No. 1 extrusion head (111), the No. 2 extrusion head (112), the No. 3 extrusion head (113) and the No. 4 extrusion head (114) are respectively distributed symmetrically along the circumference of the extrusion tube (110). The interior of the material box body (104) is provided with There is a mixing and stirring mechanism (3), the mixing and stirring mechanism (3) is composed of a stirrer (301), a drive motor (302), a rotating shaft (303) and a stirring rod (304); the surface of the push plate (109) is provided with an anti-adhesion mechanism (2), the anti-adhesion mechanism (2) is composed of an elastic component (201), an elastic column (202) and an anti-adhesion component (203); the surfaces of the extrusion tube (110), the first extrusion head (111), the second extrusion head (112), the third extrusion head (113) and the fourth extrusion head (114) are all provided with a convenient switching mechanism (4), the interior of the convenient switching mechanism (4) includes a fastening bolt (401), a fixing screw hole (402) and a convenient switching group (403);The input end of the electric push rod (103) is electrically connected to the output end of the control button (101), and the output end of the electric push rod (103) sequentially passes through the equipment box (1) and the extrusion box (107) and is fixed to the surface at the top position of the push plate (109). The surface of the extrusion box (107) is installed with a heating wire (105) for heating the inside of the extrusion box (107), and the inner wall of the equipment box (1) is installed with a temperature monitor (106); the anti-adhesion component (203) is arranged on the push plate (109), the anti-adhesion component (203) is composed of a connecting frame (2031) and a scraper plate (2032), the connecting frame (2031) is installed on the surface of the push plate (109), and the interior of the connecting frame (2031) is provided with a scraper plate (2032) for scraping off the material stuck to the inner wall of the extrusion box (107), the surface of the scraper plate (2032) is in contact with the inner wall of the extrusion box (107), and the scraper plate (2032) and the inner wall of the connecting frame (2031) are in sliding cooperation with each other.; 2. The multi-layer co-extrusion device for preventing material adhesion according to claim 1, characterized in that: The inner wall of the connecting frame (2031) is installed with elastic columns (202) at equal intervals, one end of each elastic column (202) is fixed to the surface of the scraper plate (2032), and the inner wall of the connecting frame (2031) is installed with elastic components (201) at equal intervals, one end of each elastic component (201) is fixed to the surface of the scraper plate (2032).

3. The multi-layer co-extrusion device for preventing material adhesion according to claim 1, characterized in that: A driving motor (302) is mounted on the surface at the top of the material box body (104), and an input end of the driving motor (302) is electrically connected to an output end of the control button (101). A stirrer (301) is provided inside the material box body (104), and the stirrer (301) and the inner wall of the material box body (104) are rotatably engaged with each other.

4. The multi-layer co-extrusion device for preventing material adhesion according to claim 3, characterized in that: The output end of the driving motor (302) is mounted with a rotating shaft (303) via a coupling. One end of the rotating shaft (303) passes through the material box body (104) and is fixed to the surface of the stirrer (301). The surface of the stirrer (301) is mounted with stirring rods (304) at equal intervals for stirring the material.

5. The multi-layer co-extrusion device for preventing material adhesion according to claim 1, characterized in that: The convenient switching group (403) is arranged on the surfaces of the extrusion tube (110), the first extrusion head (111), the second extrusion head (112), the third extrusion head (113) and the fourth extrusion head (114), and the convenient switching group (403) is composed of a positioning card slot (4031) and a positioning card block (4032). The surface of the extrusion tube (110) is provided with a fixing screw hole (402), and the surfaces of the first extrusion head (111), the second extrusion head (112), the third extrusion head (113) and the fourth extrusion head (114) are all threadedly connected with a fastening bolt (401), and one end of the fastening bolt (401) passes through the first extrusion head (111), the second extrusion head (112), the third extrusion head (113) and the fourth extrusion head (114) and is threadedly fastened to the inner wall of the fixing screw hole (402).

6. The multi-layer co-extrusion device for preventing material adhesion according to claim 5, characterized in that: The fastening bolt (401) is rotatably engaged with the surfaces of the first extrusion head (111), the second extrusion head (112), the third extrusion head (113) and the fourth extrusion head (114); the surfaces of the first extrusion head (111), the second extrusion head (112), the third extrusion head (113) and the fourth extrusion head (114) are all installed with positioning blocks (4032); the surfaces of the extrusion tube (110) are all provided with positioning slots (4031); the positioning slots (4031) and the surfaces of the positioning blocks (4032) are engaged with each other.

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