Same-direction parallel twin-screw extrusion granulator
By introducing a limiting cylinder and a raised structure into the plastic granulator, the problem of breakage caused by reverse traction during the traction process of strip-shaped products is solved. By limiting the product position through the limiting cylinder and the raised structure, the effects of stable cooling and cutting into granules are achieved.
Patent Information
- Application Number
- CN202520259784.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-18
AI Technical Summary
In existing plastic granulators, the high extrusion speed and slow traction speed during the traction process cause strip-shaped products to be easily pulled in the opposite direction, leading to breakage.
A co-rotating parallel twin-screw extruder is used. By setting a limiting cylinder and a protrusion structure in the cooling assembly, the position of the strip product is restricted. The product is connected by a hinged rod and an arc surface, a limiting rod and a second plane, a limiting rod and a second protrusion, and a first and second protrusion on the limiting cylinder to restrict the reverse movement of the strip product.
This effectively prevents the strip-shaped product from breaking under reverse force, achieving stable product movement and cooling.
Smart Images
Figure CN223735422U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a granulator technology especially to a same direction parallel double screw extrusion granulator. BACKGROUND
[0002] With the development of society, the application of plastic granulator is more and more widely, and plastic granulation is a kind of process of plastic mechanical processing, and in the process of plastic granulation, the performance and practice of the machine should be explored to master the skill, so that the quality and process of plastic products can be continuously improved.
[0003] In the prior art, the plastic granulator is usually mixed and plasticized by a double screw extruder, and the strip-shaped product after extrusion needs to be guided into cooling water for cooling. However, when the speed of the traction equipment is slow, the extrusion speed of the extrusion granulator is fast, which causes the strip-shaped product to be easily pulled in reverse, and the strip-shaped product pulled out is easily broken, so it needs to be improved. UTILITY MODEL CONTENT
[0004] In order to solve the defects of the prior art, the utility model provides a same direction parallel double screw extrusion granulator.
[0005] The technical scheme of the utility model is as follows:
[0006] A same direction parallel double screw extrusion granulator, comprising an extruder and a cooling assembly, a water storage tank is arranged in the cooling assembly, a water tank for placing cooling water is formed in the middle of the water storage tank, symmetrically arranged mounting blocks are arranged in the water tank, a support plate and a limiting cylinder are arranged in the middle of the mounting block, a passing area is formed between the limiting cylinder and the support plate, a hinge hole is arranged in the middle of the limiting cylinder, a hinge rod is arranged in the hinge hole, and the limiting cylinder is arranged on the mounting block through the hinge rod.
[0007] In the same direction parallel double screw extrusion granulator, a first plane is arranged on the limiting cylinder, and the first plane is arranged at the upper end of the support plate.
[0008] In the same direction parallel double screw extrusion granulator, a second plane adjacent to the first plane is arranged on the limiting cylinder.
[0009] In the same direction parallel double screw extrusion granulator, a protruding end is further arranged on the limiting cylinder, and the protruding end is arranged on the opposite side of the second plane.
[0010] In this co-rotating parallel twin-screw extruder granulator of the present invention, the protruding end is connected to the first plane by an arc surface, the distance between the hinge hole and the first plane is H1, the distance between the hinge hole and the second plane is H2, and the distance between the hinge hole and the protruding end is H3, where H2 < H1 < H3.
[0011] In this co-rotating parallel twin-screw extruder granulator of the present invention, a first protrusion and a second protrusion are provided between the arc surface and the first plane. The radius of the first protrusion is smaller than the radius of the second protrusion, and both the first protrusion and the second protrusion are tangent to the extension line of the first plane.
[0012] In this co-rotating parallel twin-screw extruder granulator of the present invention, a counterweight rod is also provided on the limiting cylinder.
[0013] The co-rotating parallel twin-screw extruder granulator of this invention has the following beneficial effects: By setting a guiding limiting cylinder, the co-rotating parallel twin-screw extruder granulator can guide the strip-shaped product and restrict its position. Simultaneously, when the extruded strip-shaped product is subjected to reverse tension, the product can drive the limiting cylinder to rotate in the opposite direction. The first and second protrusions on the limiting cylinder further drive this rotation, gradually maintaining the protruding ends to restrict the reverse movement of the strip-shaped product, thus preventing the product from being pulled apart by reverse force during extrusion. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the co-rotating parallel twin-screw extruder granulator of this utility model;
[0015] Figure 2 for Figure 1 A schematic diagram of the cooling component structure in the diagram;
[0016] Figure 3 for Figure 2 Perspective view of the mounting block, support plate, hinge rod, and limiting cylinder structure;
[0017] Figure 4 for Figure 3 A schematic diagram of the limiting cylinder structure. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0019] like Figures 1 to 4As shown, the utility model discloses the same direction parallel double screw extruder, including extruder 1 and cooling assembly 2, extruder 1 heats raw material, then extrudes it, passes through extruded strip product 3, guides it to cooling assembly 2, and cooling is carried out through cooling water in cooling assembly 2.
[0020] Cooling assembly 2 is equipped with water storage tank 4, and the water storage tank 4 is formed with a water tank 5 for placing cooling water in the middle, the water tank 5 is equipped with symmetrically arranged mounting blocks 6, the mounting blocks 6 are provided with support plates 7 and limiting cylinders 8 in the middle, and the limiting cylinders 8 and the support plates 7 form a passing area 9. The diameter of the strip product 3 can pass through the passing area 9.
[0021] The middle of the limiting cylinder 8 is provided with a hinge hole 10, the hinge hole 10 is provided with a hinge rod 11, and the limiting cylinder 8 is arranged on the mounting block 6 through the hinge rod 11. The hinge rod 11 can keep the limiting cylinder 8 rotating, so that it can limit the position of the strip product 3, so that it can only move in the guided direction and cannot move reversely, thereby avoiding the reverse force movement of the strip product 3.
[0022] A first plane 12 is arranged on the limiting cylinder 8, and the first plane 12 is arranged at the upper end of the support plate 7. A second plane 13 adjacent to the first plane 12 is arranged on the limiting cylinder 8. A convex end 14 is further arranged on the limiting cylinder 8, and the convex end 14 is arranged on the opposite side of the second plane 13. The second plane 13 is arranged on one side of the first plane 12, and the convex end 14 is arranged on the other side of the first plane 12.
[0023] As shown in the figure, Figure 3 The strip product 3 is guided to move from one end of the second plane 13 to one end of the convex end 14, so that the strip product 3 can pass through the passing area 9.
[0024] The convex end 14 and the first plane 12 are connected by a circular arc surface 15, the distance between the hinge hole 10 and the first plane 12 is H1, the distance between the hinge hole 10 and the second plane 13 is H2, and the distance between the hinge hole 10 and the convex end 14 is H3, H2 < H1 < H3.
[0025] The circular arc surface 15 and the first plane 12 are provided with a first convex 16 and a second convex 17, the radius of the first convex 16 is smaller than the radius of the second convex 17, and the first convex 16 and the second convex 17 are both tangent to the extension line of the first plane 12.
[0026] Since the distance between the protruding end 14 and the hinge hole 10 is H3, the distance is greater than H2, so when the strip-shaped product 3 is reversely moved to the direction of the second plane 13, the limiting cylinder 8 is reversely rotated by the influence of the first protrusion 16 and the second protrusion 17, the protruding end 14 gradually extrudes the strip-shaped product 3, and the strip-shaped product 3 is stopped.
[0027] The limiting cylinder 8 is further provided with a counterweight rod 18. The counterweight rod 18 can keep the first plane 12 on the limiting cylinder 8 always at the lower end, facilitating the movement and positioning of the strip-shaped product 3.
[0028] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A co-rotating parallel twin-screw extrusion granulator comprising an extruder and a cooling assembly, characterized in that, The cooling assembly is provided with a water storage tank, a water tank for placing cooling water is formed in the middle of the water storage tank, symmetrically arranged mounting blocks are arranged in the water tank, a support plate and a limiting cylinder are arranged in the middle of the mounting blocks, a passing area is formed between the limiting cylinder and the support plate, a hinge hole is arranged in the middle of the limiting cylinder, a hinge rod is arranged in the hinge hole, and the limiting cylinder is arranged on the mounting block through the hinge rod.
2. The co-rotating twin-screw extrusion granulator according to claim 1, characterized in that, A first plane is arranged on the limiting cylinder, and the first plane is arranged at the upper end of the support plate.
3. The co-rotating twin-screw extrusion granulator according to claim 2, characterized in that, A second plane adjacent to the first plane is arranged on the limiting cylinder.
4. The co-rotating twin-screw extrusion granulator according to claim 3, characterized in that A convex end is further arranged on the limiting cylinder, and the convex end is arranged at the opposite side of the second plane.
5. The co-rotating twin-screw extrusion granulator according to claim 4, characterized in that, The convex end and the first plane are connected through a circular arc surface, the distance between the hinge hole and the first plane is H1, the distance between the hinge hole and the second plane is H2, and the distance between the hinge hole and the convex end is H3, and H2 6. The co-rotating twin-screw extrusion granulator according to claim 5, characterized in that First and second protrusions are arranged between the circular arc surface and the first plane, the radius of the first protrusion is smaller than the radius of the second protrusion, and the first and second protrusions are tangent to the extension line of the first plane.
7. The co-rotating twin-screw extrusion granulator according to claim 1, characterized in that, A counterweight rod is further arranged on the limiting cylinder.