Mixing and recombining device used between screw rod and die head

Abstract

The invention relates to the technical field of co-extrusion mixing, in particular to a mixing and recombining device used between a screw and a die head, which comprises a gate valve body and a flange, and further comprises a mixing and recombining assembly, the mixing and recombining assembly comprises a gate, a filter screen, a first core shift pore plate, a second core shift pore plate, a third core shift pore plate, a dispersion net and a moving component, various materials can be fully blended by matching the first core shift pore plate, the second core shift pore plate and the third core shift pore plate with the filter screen and the dispersion screen, so that the compatibility requirements of high polymer materials of various materials are met.

Description

Technical Field

[0001] This invention relates to the field of co-extrusion mixing technology, and more particularly to a mixing and recombining device for use between a screw and a die. Background Technology

[0002] Traditional production of plastic containers for chemical products mainly relies on single-step molding or multi-step compounding processes, but traditional processes require multiple steps, increasing equipment investment and labor costs.

[0003] The existing co-extrusion unit between the screw and the die is the core system for multilayer composite processing of plastics. Its core lies in the simultaneous composite extrusion of different materials through multiple screw extruders that independently plasticize them, followed by precise die design. Taking a three-layer co-extrusion casting equipment as an example, three twin-screw extruders are responsible for melting and conveying different materials. The screws adopt a modular design, allowing for the combination of threaded components according to material characteristics to optimize the mixing effect, thereby reducing labor costs.

[0004] However, current extrusion processes cannot fully integrate various materials, resulting in uneven mixing of multiple raw materials and thus defects in the finished product. Summary of the Invention

[0005] The purpose of this invention is to provide a mixing and recombination device for screw and die head, which solves the problem.

[0006] To achieve the above objectives, the present invention provides a mixing and recombination device for a screw and a die head, comprising a slide gate valve body and a flange, wherein the flange is connected to the slide gate valve body. It also includes hybrid recombination components; The hybrid recombination assembly includes an insert plate, a filter screen, a first eccentric perforated plate, a second eccentric perforated plate, a third eccentric perforated plate, a dispersing mesh, and a moving component. The insert plate is connected to the insert plate valve body via the moving component and is located on one side of the insert plate valve body. The filter screen is disposed in the insert plate valve body. The first eccentric perforated plate is disposed in the insert plate valve body and is located on the side of the insert plate valve body closer to the filter screen. The second eccentric perforated plate is disposed in the insert plate valve body and is located on the side of the insert plate valve body closer to the first eccentric perforated plate. The third eccentric perforated plate is disposed in the insert plate valve body and is located on the side of the insert plate valve body closer to the second eccentric perforated plate. The dispersing mesh is disposed in the insert plate valve body and is located on the side of the insert plate valve body closer to the third eccentric perforated plate. The moving component is disposed on the insert plate valve body and connected to the insert plate.

[0007] The movable component includes a threaded seat, a screw, and a connecting component. The threaded seat is fixedly connected to the slide valve body and is located on one side of the slide valve body. The screw is connected to the slide through the connecting component and is threadedly connected to the threaded seat. The connecting component is disposed on the slide and is connected to the screw.

[0008] The connecting component includes a connecting frame, a connecting seat, and a connecting rod. The connecting frame is fixedly connected to the insert plate and is located on the side of the insert plate near the insert plate valve body. The connecting seat is fixedly connected to the connecting frame and is located on one side of the connecting frame. The connecting rod is rotatably connected to the connecting seat and fixedly connected to the screw.

[0009] The connecting rod has a limiting protrusion located on the side of the connecting rod near the connecting seat.

[0010] The movable component further includes a rotating part, which includes a handwheel and an adjusting component. The handwheel is connected to the screw via the adjusting component. The adjusting component is disposed on the screw and connected to the handwheel.

[0011] The adjusting component includes an adjusting slide and a sliding bracket. The adjusting slide is fixedly connected to the screw and located on one side of the screw. The sliding bracket is slidably connected to the adjusting slide and fixedly connected to the handwheel, and is located on the side of the adjusting slide closer to the handwheel.

[0012] The adjusting slide has a limiting groove, which is located on the side of the limiting slide close to the sliding frame and cooperates with the sliding frame.

[0013] The adjusting component further includes a locking bracket and a locking bolt. The locking bracket is fixedly connected to the adjusting slide and is located on one side of the adjusting slide; the locking bolt is disposed on the locking bracket and abuts against the slide.

[0014] The adjusting component further includes a locking component, which includes a locking frame and a locking bolt. The locking frame is fixedly connected to the slide valve body and is located on one side of the slide valve body. The locking bolt is disposed on the locking frame and abuts against the adjusting slide.

[0015] This invention provides a mixing and recombination device for use between a screw and a die. When multiple raw materials need to be mixed, the operator connects the insert valve body to the extrusion barrel, opens the insert plate inside the insert valve body via the moving component, and the raw materials pass through the insert valve body. The material undergoes preliminary filtration through the filter screen, and is effectively mixed through three layers of staggered eccentric perforated plates (first, second, and third). Finally, it is dispersed through the herringbone-shaped dispersion net. This achieves thorough blending of various materials through the first, second, and third eccentric perforated plates in conjunction with the filter screen and dispersion net, thereby meeting the compatibility requirements of multiple materials with polymers, ensuring uniform mixing of various raw materials, and avoiding defects in the finished product. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the structure of the mixing and recombination device between the screw and the die head according to the first embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the hybrid recombination component according to the first embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the connecting component according to the first embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the mixing and recombination device between the screw and the die head according to the second embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the rotating component according to the second embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the structure of the mixing and recombination device between the screw and the die head according to the third embodiment of the present invention.

[0023] In the diagram: 101-gate valve body, 102-flange, 103-gate, 104-filter screen, 105-first eccentric orifice plate, 106-second eccentric orifice plate, 107-third eccentric orifice plate, 108-dispersion mesh, 109-threaded seat, 110-screw, 111-connecting bracket, 112-connecting seat, 113-connecting rod, 114-limiting protrusion, 201-handwheel, 202-adjusting slide, 203-sliding bracket, 204-locking bracket, 205-locking bolt, 206-limiting groove, 301-locking bracket, 302-locking bolt. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0025] The first embodiment of this application is as follows: Please see Figures 1-3 ,in Figure 1 This is a schematic diagram of the structure of the mixing and recombination device between the screw and the die head according to the first embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of the hybrid recombination component according to the first embodiment of the present invention. Figure 3 This is a schematic diagram of the connecting component according to the first embodiment of the present invention.

[0026] This invention provides a mixing and recombination device for a screw and a die, comprising a gate valve body 101, a flange 102, and a mixing and recombination assembly. The mixing and recombination assembly includes a gate 103, a filter screen 104, a first eccentric perforated plate 105, a second eccentric perforated plate 106, a third eccentric perforated plate 107, a dispersing mesh 108, and a moving component. The moving component includes a threaded seat 109, a screw 110, and a connecting component. The connecting component includes a connecting frame 111, a connecting seat 112, and a connecting rod 113, the connecting rod 113 having a limiting protrusion 114. This solution addresses the current extrusion process's inability to achieve sufficient mixing of various materials, resulting in uneven mixing of multiple raw materials and thus defects in the finished product.

[0027] In this embodiment, the two flanges 102 are connected and fixed to the slide gate valve body 101. The slide gate valve body 101 can be connected and fixed to the extrusion barrel through the flanges 102, and the material can pass through the slide gate valve body 101.

[0028] The insert plate 103 is connected to the insert plate valve body 101 via the moving member and is located on one side of the insert plate valve body 101. The filter screen 104 is disposed in the insert plate valve body 101. The first eccentric perforated plate 105 is disposed in the insert plate valve body 101 and is located on the side of the insert plate valve body 101 near the filter screen 104. The second eccentric perforated plate 106 is disposed in the insert plate valve body 101 and is located on the side of the insert plate valve body 101 near the first eccentric perforated plate 105. The third eccentric perforated plate 107 is disposed in the insert plate valve body 101. The filter screen 104 is located in the slide valve body 101, near the second eccentric plate 106. The dispersing mesh 108 is disposed in the slide valve body 101, near the third eccentric plate 107. The moving member is disposed on the slide valve body 101 and connected to the slide plate 103. The slide plate 103 is connected to the slide valve body 101 via the moving member, and the opening and closing of the slide valve body 101 can be controlled by the slide plate 103. Installed within the slide gate valve body 101, the filter screen 104 performs preliminary filtration of the incoming material, removing potentially larger particles or foreign objects to prevent these impurities from affecting subsequent mixing and the quality of the finished product. The first eccentric perforated plate 105 is installed within the slide gate valve body 101. The eccentric holes in the first eccentric perforated plate 105 alter the flow direction of the raw material during passage, generating turbulence and promoting preliminary mixing between different raw materials. The second eccentric perforated plate 106 is installed offset from the first eccentric perforated plate 105, through... The staggered arrangement further increases the complexity and tortuosity of the raw material flow path, allowing the raw materials to collide and mix more fully as they pass through these two layers, thus improving the mixing effect. The third eccentric orifice plate 107 is staggered with the second eccentric orifice plate 106 to further enhance the mixing process of the raw materials. Thus, through the combination of multiple staggered eccentric orifice plates, the raw materials undergo multiple changes in flow direction and mutual mixing within the device, gradually achieving the purpose of uniform mixing. The first eccentric orifice plate 105, the second eccentric orifice plate 106, and the third eccentric orifice plate 107 are spaced apart by 1.With a 5 cm gap, the dispersing mesh 108 is installed in the insert valve body 101. The dispersing mesh 108 is a herringbone pattern. The dispersing mesh 108 further disperses the raw materials, allowing them to be finely dispersed and mixed again after the previous mixing layers. This ensures that the various raw materials are fully blended and achieve a highly uniform mixture. When multiple raw materials need to be mixed, the operator connects the insert valve body 101 to the extrusion barrel, opens the insert plate 103 inside the insert valve body 101 via the moving component, and the raw materials pass through the insert valve body 101 and the filter. The filter screen 104 performs preliminary filtration of the incoming materials, and effectively mixes them through the three staggered layers of the first eccentric perforated plate 105, the second eccentric perforated plate 106, and the third eccentric perforated plate 107. Finally, the materials are dispersed by the herringbone-shaped dispersing screen 108. This process, using the first eccentric perforated plate 105, the second eccentric perforated plate 106, and the third eccentric perforated plate 107 in conjunction with the filter screen 104 and the dispersing screen 108, allows for the thorough blending of various materials. This satisfies the compatibility requirements of polymer materials, ensuring uniform mixing of raw materials and preventing defects in the finished product.

[0029] Secondly, the threaded seat 109 is fixedly connected to the slide valve body 101 and is located on one side of the slide valve body 101; the screw 110 is connected to the slide 103 through the connecting component and is threadedly connected to the threaded seat 109; the connecting component is disposed on the slide 103 and connected to the screw 110; the threaded seat 109 is welded to the slide valve body 101; the screw 110 is threadedly connected to the threaded seat 109; the screw 110 is connected to the slide 103 through the connecting component; by the thread through the threaded seat 109 and the limiting movement of the slide 103 within the slide valve body 101, the screw 110 can drive the slide 103 connected to the connecting component to move within the slide valve body 101 when it rotates, thereby realizing the opening and closing of the valve body.

[0030] Meanwhile, the connecting frame 111 is fixedly connected to the insert plate 103 and is located on the side of the insert plate 103 near the insert valve body 101; the connecting seat 112 is fixedly connected to the connecting frame 111 and is located on one side of the connecting frame 111; the connecting rod 113 is rotatably connected to the connecting seat 112 and fixedly connected to the screw 110; the connecting frame 111 is bolted on the insert plate 103; the connecting seat 112 is welded to the connecting frame 111; and the connecting rod 113 is limited to rotate within the connecting seat 112. Through the connecting frame 111, the connecting seat 112, and the connecting rod 113, the screw 110 can drive the insert plate 103 to move within the insert valve body 101 when rotating and moving.

[0031] Finally, the limiting protrusion 114 is located on the side of the connecting rod 113 near the connecting seat 112. The limiting protrusion 114 of the connecting rod 113 can prevent the connecting rod 113 from moving out of the connecting seat 112 when the connecting rod 113 rotates in the connecting seat 112.

[0032] When using the mixing and recombination device for screw and die head according to this embodiment, if multiple raw materials need to be mixed, the operator connects the insert valve body 101 to the extrusion barrel, opens the insert plate 103 inside the insert valve body 101 through the moving component, and the raw materials pass through the insert valve body 101. The material can be initially filtered by the filter screen 104, and effectively mixed by the three layers of staggered first eccentric perforated plates 105, second eccentric perforated plates 106 and third eccentric perforated plates 107. Finally, it is dispersed by the herringbone-shaped dispersion net 108. Thus, the first eccentric perforated plate 105, second eccentric perforated plate 106 and third eccentric perforated plate 107, together with the filter screen 104 and dispersion net 108, can fully blend various materials, thereby meeting the compatibility requirements of multiple materials with polymer materials, making the multiple raw materials mixed evenly, and avoiding defects in the finished product.

[0033] The second embodiment of this application is as follows: Please see Figure 4 and Figure 5 ,in Figure 4 This is a schematic diagram of the structure of the mixing and recombination device between the screw and the die head according to the second embodiment of the present invention. Figure 5 This is a schematic diagram of the rotating component according to the second embodiment of the present invention.

[0034] Based on the first embodiment, the mixing and recombining device for screw and die head in this embodiment further includes a rotating component, which includes a handwheel 201 and an adjusting component. The adjusting component includes an adjusting slide 202, a sliding frame 203, a locking frame 204 and a locking bolt 205. The adjusting slide 202 has a limiting groove 206.

[0035] The rotating component includes a handwheel 201 and an adjusting member. The handwheel 201 is connected to the screw 110 via the adjusting member. The adjusting member is mounted on the screw 110 and connected to the handwheel 201. The adjusting slide 202 is fixedly connected to the screw 110 and located on one side of the screw 110. The sliding frame 203 is slidably connected to the adjusting slide 202 and fixedly connected to the handwheel 201, and is located on the side of the adjusting slide 202 closer to the handwheel 201. The handwheel 201 is connected to the screw 110 via the adjusting member, and the adjusting member allows adjustment of the handwheel 201. The position of 01 allows the handwheel 201 to be adjusted as needed, thereby rotating the screw 110 on the adjusting component. The adjusting slide 202 is welded to the screw 110, and the sliding frame 203 is slidably connected in the adjusting slide 202. The adjusting slide 202 has a square limiting groove 206 inside, with the long direction of the limiting groove 206 facing the sliding frame 203. The position of the handwheel 201 can be adjusted by sliding the sliding frame 203, so that the position of the handwheel 201 can be adjusted when necessary.

[0036] The locking bracket 204 is fixedly connected to the adjusting slide 202 and is located on one side of the adjusting slide 202; the locking bolt 205 is disposed on the locking bracket 204 and abuts against the sliding bracket 203; the locking bracket 204 is welded to the adjusting slide 202; the locking bracket 204 has a threaded hole; the locking bolt 205 is disposed on the locking bracket 204; by turning the locking bolt 205, the locking bolt 205 can move towards the sliding bracket 203, and when necessary, abut against the sliding bracket 203 to restrict and lock the movement adjustment of the sliding bracket 203.

[0037] The third embodiment of this application is as follows: Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of the mixing and recombination device between the screw and the die head according to the third embodiment of the present invention.

[0038] Based on the second embodiment, the mixing and recombining device between the screw and the die head in this embodiment further includes a locking component, which includes a locking frame 301 and a locking bolt 302.

[0039] The locking frame 301 is fixedly connected to the slide valve body 101 and is located on one side of the slide valve body 101. The locking bolt 302 is disposed on the locking frame 301 and abuts against the adjusting slide 202. The locking frame 301 is welded to the outside of the slide valve body 101. The locking frame 301 has a threaded hole. By turning the locking bolt 302, it enters the threaded hole of the locking frame 301 and can move against the adjusting slide 202. Thus, by restricting the rotation of the adjusting slide 202, the rotation of the screw 110 is locked, preventing the valve body from opening when closed.

[0040] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A mixing and recombination device for screw and die, comprising a flange and a flapper valve body, wherein the flange is connected with the flapper valve body, characterized in that, further comprising a mixing and recombination assembly; the mixing and recombination assembly comprises a flapper, a filter screen, a first eccentric hole plate, a second eccentric hole plate, a third eccentric hole plate, a dispersion screen and a moving component, wherein the flapper is connected with the flapper valve body through the moving component and located on one side of the flapper valve body, the filter screen is arranged in the flapper valve body, the first eccentric hole plate is arranged in the flapper valve body and located on one side of the flapper valve body close to the filter screen, the second eccentric hole plate is arranged in the flapper valve body and located on one side of the flapper valve body close to the first eccentric hole plate, the third eccentric hole plate is arranged in the flapper valve body and located on one side of the flapper valve body close to the second eccentric hole plate, the dispersion screen is arranged in the flapper valve body and located on one side of the flapper valve body close to the third eccentric hole plate, and the moving component is arranged on the flapper valve body and connected with the flapper.

2. The mixing and recombination device for screw and die according to claim 1, characterized in that, the moving component comprises a threaded seat, a screw rod and a connecting component, wherein the threaded seat is fixedly connected with the flapper valve body and located on one side of the flapper valve body, the screw rod is connected with the flapper through the connecting component and threadedly connected with the threaded seat, and the connecting component is arranged on the flapper and connected with the screw rod.

3. The mixing and recombination device for screw and die according to claim 2, characterized in that, the connecting component comprises a connecting frame, a connecting seat and a connecting rod, wherein the connecting frame is fixedly connected with the flapper and located on one side of the flapper close to the flapper valve body, the connecting seat is fixedly connected with the connecting frame and located on one side of the connecting frame, and the connecting rod is rotationally connected with the connecting seat and fixedly connected with the screw rod.

4. The mixing and recombination device for screw and die according to claim 1, characterized in that, the moving component further comprises a rotating component, wherein the rotating component comprises a hand wheel and an adjusting piece, the hand wheel is connected with the screw rod through the adjusting piece, and the adjusting piece is arranged on the screw rod and connected with the hand wheel.

5. The mixing and recombination device for screw and die according to claim 4, characterized in that, the adjusting piece comprises an adjusting slide and a sliding frame, wherein the adjusting slide is fixedly connected with the screw rod and located on one side of the screw rod, the sliding frame is slidingly connected with the adjusting slide and fixedly connected with the hand wheel and located on one side of the adjusting slide close to the hand wheel.

6. The mixing and recombination device for screw and die according to claim 5, characterized in that, the adjusting piece further comprises a locking frame and a locking bolt, wherein the locking frame is fixedly connected with the adjusting slide and located on one side of the adjusting slide, and the locking bolt is arranged on the locking frame and abuts against the sliding frame.

7. The mixing and recombination device for screw and die according to claim 5, characterized in that, The adjusting part further comprises a locking part, the locking part comprises a locking frame and a locking bolt, the locking frame is fixedly connected with the plug valve body and located on one side of the plug valve body; the locking bolt is arranged on the locking frame and abuts against the adjusting slide bracket.

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