Triple screw extrusion calender

Abstract

The utility model discloses three screw extrusion calender relates to extrusion calender technical field, it includes base, the top fixed mounting of base has first power component, the top fixed mounting of base has the frame of symmetrical setting, the number of frame is two, and extrusion mechanism includes: shell, three spiral extrusion rod, feed hopper and discharge groove, shell and first power component fixed connection, three spiral extrusion rod all rotatoryly connected in the inboard of shell, discharge groove fixed mounting is at the right side of shell, the top of base is equipped with extrusion mechanism, and extrusion mechanism is cooperated with two frames, the utility model discloses through setting extrusion mechanism and calender mechanism, realizes material continuous processing under the collaborative support of base and frame, and drive mechanism provides independent power source for each part, ensures that extrusion and calender action is coordinated synchronous, effectively promotes equipment whole operation stability and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of extrusion calendering technology, and more particularly to a three-screw extrusion calendering machine. Background Technology

[0002] Screw extruders rely on the pressure and shear force generated by the rotation of the screw to fully plasticize and uniformly mix materials, which are then shaped through a die. Plastic extruders can be broadly classified into twin-screw extruders, single-screw extruders, and less common multi-screw extruders and screwless extruders.

[0003] A calender consists of two or more rollers arranged according to the heating method. It can be divided into cold calenders and hot calenders. Cold calenders are suitable for materials that do not require heating, such as graphite films, graphite sheets, microwave absorbing materials, shielding materials, magnetic materials, and non-ferrous metals. Hot calenders are further divided into water-heated, electric-heated, oil-heated, and electromagnetic-heated calenders. Both are machines that press and stretch materials such as rubber, silicone rubber, silicone rubber, phase change materials, PTFE, or plastics into sheets of a certain thickness and surface shape at a specific temperature. They can also be used to coat fiberglass or steel wire fabric with adhesive. Calenders are classified according to the number of rollers (two-roll, three-roll, four-roll, and five-roll calenders) and the arrangement of the rollers ("L", "T", "F", "Z", and "S" types).

[0004] Extruders in the prior art have relatively simple structures, and most use a single screw for extrusion, which results in low stability and production efficiency, and is not convenient to be used with calenders. Therefore, this invention proposes a three-screw extrusion calender to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a three-screw extrusion calender to solve the problems mentioned in the background art, such as the extruder structure being relatively simple, most of which use a single screw for extrusion, resulting in low stability and production efficiency, and being inconvenient to cooperate with calenders.

[0006] To achieve the above objectives, this application provides the following technical solution: a three-screw extrusion calender, including a base, a first power assembly fixedly installed on the top of the base, and two symmetrically arranged frames fixedly installed on the top of the base; The base is provided with an extrusion mechanism at its top. The extrusion mechanism cooperates with two frames. The two frames are provided with the same calendering mechanism and driving mechanism. The calendering mechanism cooperates with the driving mechanism.

[0007] With the above structure, by setting up extrusion and calendering mechanisms, continuous material processing is achieved under the coordinated support of the base and frame. The drive mechanism provides an independent power source for each component, ensuring that the extrusion and calendering actions are coordinated and synchronized, effectively improving the overall operational stability and production efficiency of the equipment.

[0008] Preferably, the extrusion mechanism includes: a housing, three spiral extrusion rods, a feed hopper, and a discharge trough; The outer shell is fixedly connected to the first power component, and the three spiral extrusion rods are rotatably connected to the inside of the outer shell. The discharge chute is fixedly installed on the right side of the outer shell, and the three spiral extrusion rods of the discharge chute cooperate with each other.

[0009] Furthermore, the extrusion mechanism adopts a three-helix extruder combination design. The middle helix and the two side helices rotate in opposite directions to form a strong shearing and mixing effect. The feed hopper continuously supplies material, and the discharge chute guides the material to enter the calendering stage evenly, which enhances the plasticizing effect and extrusion continuity of the material and eliminates the open mill process in the rubber production process.

[0010] Preferably, the calendering mechanism includes: a first calendering roll, a second calendering roll, and a third calendering roll; The first, second, and third calendering rolls are all installed on one side of the two frames that are close to each other. The first and second calendering rolls are both matched with the discharge trough.

[0011] Furthermore, the calendering mechanism uses a stepped arrangement of the first, second, and third calendering rollers to perform multi-pass calendering of the extruded material. Each calendering roller is precisely matched with the discharge trough to achieve step-by-step control of the material thickness, thereby improving the uniformity of product thickness and surface quality.

[0012] Preferably, the drive mechanism includes: a second drive component, a third drive component, a fourth drive component, two fifth drive components, and two sixth drive components; The second drive assembly is fixedly installed on the left side of the frame located on the left side. The third and fourth drive assemblies are both installed on the right side of the frame located on the right side. The second drive assembly cooperates with the second calendering roll, the third drive assembly cooperates with the third calendering roll, and the fourth drive assembly cooperates with the first calendering roll. Two fifth drive assemblies are respectively installed on the top of the two frames, and both fifth drive assemblies cooperate with the first calendering roll. Two sixth drive assemblies are respectively installed on the right side of the two frames, and both sixth drive assemblies cooperate with the third calendering roll.

[0013] Furthermore, the drive mechanism employs multiple independent drive components to control the operation of each calendering roll. The second drive component drives the second calendering roll, the third and fourth drive components control the third and first calendering rolls respectively, and the fifth and sixth drive components provide auxiliary power, thereby enabling flexible adjustment of calendering speed and pressure to meet different process requirements.

[0014] Preferably, the spiral extruder located in the middle position rotates in the opposite direction to the spiral extruders located on both sides.

[0015] Furthermore, the counter-rotating spiral extruders in the middle and on both sides create an interactive shear flow field, enhancing material mixing efficiency and preventing localized stagnation.

[0016] Preferably, a rectangular through hole is provided on the top of the outer shell, and a feed hopper is fixedly installed on the top of the outer shell.

[0017] Furthermore, the rectangular through-hole connects smoothly with the feed hopper, ensuring smooth material conveying and preventing blockages.

[0018] Preferably, a bracket is fixedly installed on the top of the base, and the bottom of the bracket is fixedly connected to the bottom of the two frames.

[0019] Furthermore, the support structure enhances the overall stability of the frame and reduces vibration during equipment operation.

[0020] Preferably, connecting rods are fixedly installed on the sides of the two frames that are close to each other.

[0021] Furthermore, the connecting rods reinforce the connection between the frame structures on both sides, maintaining the installation accuracy of the calender rolls.

[0022] The beneficial effects of this utility model are: 1. The extrusion mechanism adopts a three-spiral extruder combination design. The middle spiral rod and the two side spiral rods rotate in opposite directions to form a strong shearing and mixing effect. The feed hopper continuously feeds material, and the discharge chute guides the material to enter the calendering stage evenly, which enhances the plasticizing effect of the material and the extrusion continuity, and eliminates the open mill process in the rubber production process. 2. The extrusion mechanism adopts a three-helix extruder combination design. The middle helix and the two side helixes rotate in opposite directions to form a strong shearing and mixing effect. The feed hopper continuously feeds the material, and the discharge chute guides the material to enter the calendering stage evenly, which enhances the plasticizing effect of the material and the extrusion continuity, and eliminates the open mill process in the rubber production process. 3. The drive mechanism adopts multiple independent drive components to control the operation of each calendering roll. The second drive component drives the second calendering roll, the third and fourth drive components control the third and first calendering rolls respectively, and the fifth and sixth drive components provide auxiliary power to realize flexible adjustment of calendering speed and pressure to meet different process requirements. This invention achieves continuous material processing by setting up an extrusion mechanism and a calendering mechanism, with the coordinated support of the base and frame. The drive mechanism provides an independent power source for each component, ensuring that the extrusion and calendering actions are coordinated and synchronized, effectively improving the overall operational stability and production efficiency of the equipment. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the structure of an embodiment of this application; Figure 2 This is a schematic diagram of the structure of an embodiment of this application; Figure 3 This is a schematic diagram of the structure of an embodiment of this application; Figure 4 This is a schematic diagram of the structure of an embodiment of this application; Figure 5 This is a schematic diagram of the structure of an embodiment of this application.

[0024] In the diagram: 1. Base; 2. First power assembly; 3. Housing; 4. Spiral extrusion rod; 5. Feed hopper; 6. Discharge chute; 7. Frame; 8. Support; 9. First calendering roller; 10. Second calendering roller; 11. Third calendering roller; 12. Connecting rod; 13. Second drive assembly; 14. Third drive assembly; 15. Fourth drive assembly; 16. Fifth drive assembly; 17. Sixth drive assembly. Detailed Implementation

[0025] The present invention will be further explained below with reference to specific embodiments.

[0026] refer to Figures 1-5 In this embodiment, a three-screw extrusion calender is proposed, including a base 1, a first power assembly 2 is fixedly installed on the top of the base 1, and two symmetrically arranged frames 7 are fixedly installed on the top of the base 1. The top of the base 1 is provided with an extrusion mechanism, which cooperates with two frames 7. The two frames 7 are provided with the same calendering mechanism and driving mechanism, and the calendering mechanism cooperates with the driving mechanism.

[0027] With the above structure, by setting up an extrusion mechanism and a calendering mechanism, continuous material processing is achieved under the coordinated support of the base 1 and the frame 7. The drive mechanism provides an independent power source for each component, ensuring that the extrusion and calendering actions are coordinated and synchronized, effectively improving the overall operational stability and production efficiency of the equipment.

[0028] In this embodiment, the extrusion mechanism includes: a housing 3, three spiral extrusion rods 4, a feed hopper 5, and a discharge trough 6; The outer shell 3 is fixedly connected to the first power component 2. The three spiral extrusion rods 4 are rotatably connected to the inner side of the outer shell 3. The discharge chute 6 is fixedly installed on the right side of the outer shell 3. The three spiral extrusion rods 4 cooperate with each other in the discharge chute 6. The extrusion mechanism adopts a three-spiral extrusion rod 4 combination design. The middle spiral rod and the two side spiral rods rotate in opposite directions to form a strong shearing and mixing effect. The feed hopper 5 continuously feeds material. The discharge chute 6 guides the material to enter the calendering stage evenly, which enhances the plasticizing effect and extrusion continuity of the material and eliminates the open mill process in the rubber production process.

[0029] In this embodiment, the calendering mechanism includes: a first calendering roll 9, a second calendering roll 10, and a third calendering roll 11; The first calendering roll 9, the second calendering roll 10, and the third calendering roll 11 are all installed on the side of the two frames 7 that are close to each other. The first calendering roll 9 and the second calendering roll 10 are both matched with the discharge trough 6. The calendering mechanism performs multi-pass calendering of the extruded material through the stepped arrangement of the first, second, and third calendering rolls 11. Each calendering roll is precisely matched with the discharge trough 6 to achieve step-by-step control of the material thickness and improve the uniformity of product thickness and surface quality.

[0030] In this embodiment, the driving mechanism includes: a second driving component 13, a third driving component 14, a fourth driving component 15, two fifth driving components 16, and two sixth driving components 17; The second drive assembly 13 is fixedly installed on the left side of the frame 7 located on the left side. The third drive assembly 14 and the fourth drive assembly 15 are both installed on the right side of the frame 7 located on the right side. The second drive assembly 13 cooperates with the second calendering roll 10, the third drive assembly 14 cooperates with the third calendering roll 11, and the fourth drive assembly 15 cooperates with the first calendering roll 9. Two fifth drive assemblies 16 are respectively installed on the top of the two frames 7, and both fifth drive assemblies 16 cooperate with the first calendering roll 9. Two sixth drive assemblies 17 are respectively installed on the right side of the two frames 7, and both sixth drive assemblies 17 cooperate with the third calendering roll 11. The drive mechanism uses multiple sets of independent drive assemblies to control the operation of each calendering roll. The second drive assembly 13 drives the second calendering roll 10, the third and fourth drive assemblies 15 control the third and first calendering rolls 9 respectively, and the fifth and sixth drive assemblies 17 provide auxiliary power to realize flexible adjustment of calendering speed and pressure to meet different process requirements.

[0031] In this embodiment, the spiral extrusion rod 4 located in the middle position rotates in the opposite direction to the spiral extrusion rods 4 on both sides. The opposite rotation of the middle and the two side spiral extrusion rods 4 forms an interactive shear flow field, which enhances the material mixing efficiency and prevents local stagnation.

[0032] In this embodiment, a rectangular through hole is provided on the top of the outer shell 3, and a feed hopper 5 is fixedly installed on the top of the outer shell 3. The rectangular through hole and the feed hopper 5 are smoothly connected to ensure smooth material conveying and avoid blockage.

[0033] In this embodiment, a bracket 8 is fixedly installed on the top of the base 1, and the bottom of the bracket 8 is fixedly connected to the bottom of the two frames 7. The bracket 8 enhances the overall stability of the frame 7 and reduces the vibration of the equipment during operation.

[0034] In this embodiment, a connecting rod 12 is fixedly installed on the side of each of the two frames 7 that are close to each other. The connecting rod 12 strengthens the structural connection between the two frames 7 and maintains the installation accuracy of the calendering roll.

[0035] Working Principle: By setting up an extrusion mechanism and a calendering mechanism, the extrusion mechanism adopts a three-spiral extruder design. The middle spiral and the two side spirals rotate in opposite directions to create a strong shearing and mixing effect. The feed hopper 5 continuously feeds material, and the discharge chute 6 guides the material evenly into the calendering stage, enhancing the plasticizing effect and extrusion continuity. This eliminates the need for an open mill in rubber production. The spiral extruder 4 in the middle position rotates in the opposite direction to the spiral extruders 4 on both sides, creating an interactive shearing flow field that enhances material mixing efficiency and prevents local stagnation. The extrusion mechanism adopts a three-spiral extruder design, with the middle spiral and the two side spirals rotating in opposite directions to create a strong shearing and mixing effect. The feed hopper 5 continuously supplies material, and the discharge chute 6 guides the material evenly into the calendering stage, enhancing the plasticizing effect and extrusion continuity of the material. This eliminates the need for the open mill process in rubber production. With the coordinated support of the base 1 and the frame 7, continuous material processing is achieved. The drive mechanism provides an independent power source for each component. The drive mechanism uses multiple sets of independent drive components to control the operation of each calendering roller. The second drive component 13 drives the second calendering roller 10, the third and fourth drive components 15 control the third and first calendering rollers 9 respectively, and the fifth and sixth drive components 17 provide auxiliary power, enabling flexible adjustment of calendering speed and pressure to meet different process requirements. This ensures that the extrusion and calendering actions are coordinated and synchronized, effectively improving the overall operational stability and production efficiency of the equipment.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three-screw extrusion calender, comprising a base (1), characterized in that, The first power assembly (2) is fixedly installed on the top of the base (1), and two symmetrically arranged frames (7) are fixedly installed on the top of the base (1). The base (1) is provided with an extrusion mechanism at its top. The extrusion mechanism is in cooperation with two frames (7). The two frames (7) are provided with the same calendering mechanism and driving mechanism. The calendering mechanism is in cooperation with the driving mechanism.

2. The three-screw extruder calender according to claim 1, characterized in that, The extrusion mechanism includes: a housing (3), three spiral extrusion rods (4), a feed hopper (5), and a discharge trough (6); The outer shell (3) is fixedly connected to the first power assembly (2), and the three spiral extrusion rods (4) are rotatably connected to the inside of the outer shell (3). The discharge trough (6) is fixedly installed on the right side of the outer shell (3), and the three spiral extrusion rods (4) of the discharge trough (6) cooperate with each other.

3. The three-screw extruder calender according to claim 1, characterized in that, The calendering mechanism includes: a first calendering roll (9), a second calendering roll (10), and a third calendering roll (11). The first calendering roll (9), the second calendering roll (10) and the third calendering roll (11) are all installed on the side of the two frames (7) that are close to each other. The first calendering roll (9) and the second calendering roll (10) are both matched with the discharge trough (6).

4. The three-screw extruder calender according to claim 1, characterized in that, The drive mechanism includes: a second drive component (13), a third drive component (14), a fourth drive component (15), two fifth drive components (16) and two sixth drive components (17). The second drive assembly (13) is fixedly installed on the left side of the frame (7) located on the left side. The third drive assembly (14) and the fourth drive assembly (15) are both installed on the right side of the frame (7) located on the right side. The second drive assembly (13) cooperates with the second calendering roll (10), the third drive assembly (14) cooperates with the third calendering roll (11), the fourth drive assembly (15) cooperates with the first calendering roll (9), the two fifth drive assemblies (16) are respectively installed on the top of the two frames (7), and the two fifth drive assemblies (16) cooperate with the first calendering roll (9). The two sixth drive assemblies (17) are respectively installed on the right side of the two frames (7), and the two sixth drive assemblies (17) cooperate with the third calendering roll (11).

5. The three-screw extruder calender according to claim 2, characterized in that, The spiral extrusion rod (4) located in the middle position rotates in the opposite direction to the spiral extrusion rods (4) located on both sides.

6. The three-screw extruder calender according to claim 2, characterized in that, The top of the outer shell (3) is provided with a rectangular through hole, and a feed hopper (5) is fixedly installed on the top of the outer shell (3).

7. The three-screw extruder calender according to claim 1, characterized in that, A bracket (8) is fixedly installed on the top of the base (1), and the bottom of the bracket (8) is fixedly connected to the bottom of the two frames (7).

8. The three-screw extruder calender according to claim 1, characterized in that, Connecting rods (12) are fixedly installed on the side of the two frames (7) that are close to each other.

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