Adjustable gap multi-material combined rubber extrusion die structure

Abstract

The utility model belongs to extruder technical field, concretely is a kind of multi-material combination formula rubber extrusion die opening structure of adjustable gap, including die body, forming core and support frame, the die body includes feed inlet and discharge port, the forming core is slidably inserted in die body, the support frame is fixedly connected with the discharge port one end of die body, the forming core is connected between support frame by multiple telescopic links, screw rod is rotatably inserted on the support frame, the forming core is equipped with the thread groove corresponding with screw rod, the one end of screw rod away from forming core is fixed with knob, the support frame is fixedly connected with clamping structure, multiple clamping grooves corresponding with clamping structure are provided around on the knob. The utility model is by the setting of adjusting structure, the die can be adjusted according to actual extrusion needs, to effectively improve the application range of extruder die.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, and in particular to a multi-material combined rubber extrusion die structure with adjustable gap. 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. Through die forming, plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, and less common multi-screw extruders and screwless extruders. Existing rubber production extruder dies have certain drawbacks in use, and the requirements for extrusion vary depending on different production requirements.

[0003] However, the existing extruder die for rubber production has a relatively simple structure, and the die cannot be adjusted according to the actual extrusion needs, thus affecting the applicable range of the extruder die. Utility Model Content

[0004] The purpose of this invention is to solve the problem mentioned in the background art that the die cannot be adjusted according to the actual extrusion needs, and to propose an adjustable gap multi-material combination rubber extrusion die structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable-gap multi-material composite rubber extrusion die structure includes a die body, a molding core, and a support frame. The die body includes an inlet and an outlet. The molding core is slidably inserted into the die body. The support frame is fixedly connected to one end of the outlet of the die body. The molding core and the support frame are connected by multiple telescopic rods. A screw is rotatably inserted into the support frame. The molding core has a threaded groove corresponding to the screw. A knob is fixedly attached to the end of the screw away from the molding core. A clamping structure is fixedly connected to the support frame. The knob has multiple slots corresponding to the clamping structure.

[0007] Preferably, a plurality of fastening blocks are fixedly connected to the outer wall of the die body near the feed port, and the fastening blocks are provided with fastening ports.

[0008] Preferably, a limiting block is fixedly connected to one end of the screw located in the threaded groove.

[0009] Preferably, a support sleeve is rotatably sleeved on the screw, and one side of the support sleeve abuts against the support frame.

[0010] Preferably, the locking structure includes a locking block and a locking rod, the locking rod is slidably inserted into the locking block, a locking sleeve is fixedly sleeved at the end of the locking rod near the knob, and a pull rod is fixedly connected at the end of the locking rod away from the locking sleeve.

[0011] Preferably, a spring is fitted onto the lever, and the two ends of the spring are fixedly connected to the sleeve and the block, respectively.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In this utility model, by adjusting the structure, the die can be adjusted according to the actual extrusion needs, thereby effectively improving the applicability of the extruder die;

[0014] 2. The fastening block in this utility model can connect the die body to the extruder, the support sleeve can prevent the screw from shaking, the clamping structure can easily clamp and fix the knob, and the spring can provide a certain elastic support for the clamping rod. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a multi-material combined rubber extrusion die structure with adjustable gap proposed in this utility model;

[0016] Figure 2 This is a side view of the die body structure proposed in this utility model;

[0017] Figure 3 for Figure 1 A schematic diagram of the structure at point A in the diagram.

[0018] In the diagram: 1. Die body, 2. Molding core, 3. Support frame, 4. Telescopic rod, 5. Screw, 6. Knob, 7. Fastening block, 8. Limiting block, 9. Support sleeve, 10. Locking block, 11. Locking rod, 12. Locking sleeve, 13. Pull rod, 14. Spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-3An adjustable gap multi-material combined rubber extrusion die structure includes a die body 1, a molding core 2 and a support frame 3. The die body 1 includes an inlet and an outlet. Multiple fastening blocks 7 are fixedly connected to the outer wall of the die body 1 near the inlet. The fastening blocks 7 are provided with fastening holes to facilitate the fixing of the die body 1. The molding core 2 is slidably inserted into the die body 1. The support frame 3 is fixedly connected to the outlet end of the die body 1.

[0021] In this embodiment, a support sleeve 9 is rotatably sleeved on the screw 5 to support the screw 5. One side of the support sleeve 9 abuts against the support frame 3. The molding core 2 and the support frame 3 are connected by multiple telescopic rods 4 to prevent the molding core 2 from shaking. The screw 5 is rotatably inserted on the support frame 3 to drive the molding core 2 to slide. The molding core 2 is provided with a threaded groove corresponding to the screw 5. One end of the screw 5 located in the threaded groove is fixedly connected to a limit block 8 to prevent the screw 5 from falling out of the threaded groove.

[0022] In this embodiment, a knob 6 is fixed at the end of the screw 5 away from the molding core 2 to drive the screw 5 to rotate. A clamping structure is fixedly connected to the support frame 3. Multiple slots corresponding to the clamping structure are arranged around the knob 6 to clamp and fix the knob 6.

[0023] In this embodiment, the locking structure includes a locking block 10 and a locking rod 11. The locking rod 11 is slidably inserted into the locking block 10. A locking sleeve 12 is fixedly sleeved on one end of the locking rod 11 near the knob 6 to prevent the locking rod 11 from falling off the locking block 10. A pull rod 13 is fixedly connected to the other end of the locking rod 11 away from the locking sleeve 12. A spring 14 is sleeved on the locking rod 11. The two ends of the spring 14 are fixedly connected to the locking sleeve 12 and the locking block 10 respectively, providing a certain elastic support for the locking rod 11.

[0024] In this embodiment, the die body 1 is connected to the extruder by the fastening block 7. Then, the knob 6 is turned to drive the screw 5 to rotate, thereby driving the molding core 2 to slide and adjust the gap between the die body 1 and the molding core 2. At the same time, the telescopic rod 4 can prevent the molding core 2 from shaking, and the limiting block 8 can prevent the screw 5 from falling out of the molding core 2. Then, the knob 6 is clamped and fixed by the clamping structure.

[0025] In this embodiment, by adjusting the structure, the die can be adjusted according to the actual extrusion needs, thereby effectively improving the applicability of the extruder die.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-material composite rubber extrusion die structure with adjustable gap, comprising a die body (1), a molding core (2), and a support frame (3), characterized in that: The die body (1) includes an inlet and an outlet. The forming core (2) is slidably inserted into the die body (1). The support frame (3) is fixedly connected to one end of the outlet of the die body (1). The forming core (2) and the support frame (3) are connected by multiple telescopic rods (4). A screw (5) is rotatably inserted on the support frame (3). The forming core (2) is provided with a threaded groove corresponding to the screw (5). A knob (6) is fixed at one end of the screw (5) away from the forming core (2). A clamping structure is fixedly connected on the support frame (3). Multiple slots corresponding to the clamping structure are arranged around the knob (6).

2. The adjustable gap multi-material composite rubber extrusion die structure according to claim 1, characterized in that: Multiple fastening blocks (7) are fixedly connected to the outer wall of the die body (1) near the feed port, and the fastening blocks (7) are provided with fastening ports.

3. The adjustable gap multi-material composite rubber extrusion die structure according to claim 1, characterized in that: The screw (5) is fixedly connected to a limiting block (8) at one end located in the threaded groove.

4. The adjustable gap multi-material composite rubber extrusion die structure according to claim 1, characterized in that: A support sleeve (9) is rotatably sleeved on the screw (5), and one side of the support sleeve (9) abuts against the support frame (3).

5. The adjustable gap multi-material composite rubber extrusion die structure according to claim 1, characterized in that: The clamping structure includes a clamping block (10) and a clamping rod (11). The clamping rod (11) is slidably inserted into the clamping block (10). A sleeve (12) is fixedly sleeved on one end of the clamping rod (11) near the knob (6), and a pull rod (13) is fixedly connected to the other end of the clamping rod (11) away from the sleeve (12).

6. The adjustable gap multi-material composite rubber extrusion die structure according to claim 5, characterized in that: A spring (14) is fitted on the lever (11), and the two ends of the spring (14) are fixedly connected to the sleeve (12) and the block (10) respectively.

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