Thermoplastic elastomer plastic extrusion molding preparation device

Abstract

The utility model provides a thermoplastic elastomer plastic extrusion molding preparation device, and relates to the technical field of plastic processing. A material frame is arranged in the supporting frame, an extrusion pipe is fixedly installed on the lower front portion of the material frame, an extrusion opening is formed in the middle of the front end of the extrusion pipe, and a motor B is fixedly installed on the front portion of the top of the extrusion pipe. The gear ring at the front end of the extrusion pipe is meshed with the gear, the motor B can drive the gear to drive the gear ring to rotate, the cooling fans symmetrically arranged at the front end of the gear ring up and down synchronously rotate along with the gear ring, and the rotating cooling fans can enlarge the cooling range, so that cooling airflow more uniformly acts on a plastic product extruded from an extrusion opening, and the product cooling speed is increased. The problems that most cooling mechanisms of an existing device are in a fixed-position single cooling mode, the cooling range is limited, cooling airflow distribution is uneven, the cooling speed of plastic products is low, cooling is not consistent, and product deformation and surface wrinkling are prone to occurring are solved.

Description

Technical Field

[0001] This utility model belongs to the field of plastic processing technology, and more specifically, it relates to a thermoplastic elastomer plastic extrusion molding preparation device. Background Technology

[0002] Thermoplastic elastomer extrusion molding equipment is an industrial equipment system specifically designed to process thermoplastic elastomer raw materials into specific shapes through processes such as "heating and plasticizing, continuous extrusion, shaping and cooling". Its core function is to transform granular or powdered thermoplastic elastomer raw materials into continuous, uniform molded products that meet the size and performance requirements.

[0003] Understanding the application of existing thermoplastic elastomer extrusion equipment: After thermoplastic elastomers are extruded from the extrusion unit, they need to be cooled quickly and evenly to ensure molding effect and dimensional stability. The cooling mechanism of existing equipment is mostly a single cooling method with a fixed position, which has a limited cooling range and uneven distribution of cooling airflow. This results in slow cooling speed and inconsistent cooling of plastic products, which can easily lead to product deformation and surface wrinkles, increasing the product defect rate. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a thermoplastic elastomer plastic extrusion molding preparation device. This device solves the problem that the existing devices mostly use a single cooling method with a fixed position, resulting in a limited cooling range and uneven distribution of cooling airflow. This leads to slow and inconsistent cooling of plastic products, which can easily cause product deformation and surface wrinkles.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A thermoplastic elastomer extrusion molding preparation device includes a support frame; a material rack is arranged inside the support frame, an extrusion tube is fixedly installed at the lower front position of the material rack, an extrusion port is opened at the middle position of the front end of the extrusion tube, a motor B is fixedly installed at the front top position of the extrusion tube, the front end shaft of the motor B is fixedly connected to the middle position of the rear end of a gear, the gear is located at the upper front position of the extrusion tube, the front end of the extrusion tube is rotatably connected to the rear end of a gear ring, and the gear ring is located outside the extrusion port of the extrusion tube.

[0007] According to one embodiment of the present invention, a feeding rack is provided at the top of the material rack, and a motor A is fixedly installed at the lower rear end of the material rack.

[0008] According to one embodiment of the present invention, the rotating shaft of the motor A is fixedly connected to the middle position of the rear end of the spiral extruder, the middle and rear position of the spiral extruder is located inside the lower part of the feed rack, and the front end of the feed rack is connected to the rear end of the extrusion tube.

[0009] According to one embodiment of the present invention, the front-middle position of the spiral extruder is located inside the extrusion tube, and an inspection port is provided at the lower front position of the extrusion tube.

[0010] According to one embodiment of the present invention, a cooling fan is symmetrically arranged at the upper and lower positions of the front end of the gear ring below the meshing gear at the position above the gear ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The device is equipped with a screw extruder driven by motor A. The rear of the screw extruder is located inside the lower part of the feed rack, and the front part is located inside the extrusion tube. At the same time, the feed rack and the extrusion tube are connected. This structure allows the material to be evenly and fully conveyed into the extrusion tube for extrusion under the continuous and stable push of the screw extruder after entering from the feed rack. This avoids material accumulation and blockage, and significantly improves the material conveying efficiency.

[0013] The toothed ring at the front end of the extrusion tube meshes with a gear. Motor B can drive the gear to rotate the toothed ring. The cooling fans, which are symmetrically arranged at the front end of the toothed ring, rotate synchronously with the toothed ring. The rotating cooling fans can expand the cooling range and make the cooling airflow act more evenly on the plastic products extruded from the extrusion nozzle, accelerate the cooling speed of the product, avoid product deformation, surface wrinkles and other problems caused by uneven cooling, and significantly reduce the product defect rate. Attached Figure Description

[0014] Figure 1 This is a side view of the thermoplastic elastomer extrusion molding preparation device of this utility model.

[0015] Figure 2 This is the utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0016] Figure 3 This is a half-section left view of the thermoplastic elastomer plastic extrusion molding preparation device of this utility model.

[0017] Figure 4 This is a half-section side view of the thermoplastic elastomer plastic extrusion molding preparation device of this utility model.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0019] 1. Support frame; 101. Material rack; 102. Feed rack; 103. Motor A; 104. Screw extruder; 2. Extrusion tube; 201. Motor B; 202. Gear; 203. Gear ring; 204. Cooling fan. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The use of terms such as "a," "an," or "the" in this utility model patent application specification and claims does not indicate a quantity limitation, but rather indicates the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. Example

[0023] As attached Figure 1 To be continued Figure 4 As shown:

[0024] This utility model provides a thermoplastic elastomer extrusion molding preparation device, including a support frame 1. A material rack 101 is arranged inside the support frame 1. An extrusion tube 2 is fixedly installed at the lower front position of the material rack 101. An extrusion port is opened at the middle position of the front end of the extrusion tube 2. A motor B201 is fixedly installed at the front top position of the extrusion tube 2. The front end shaft of the motor B201 is fixedly connected to the middle position of the rear end of the gear 202. The gear 202 is located at the upper front position of the extrusion tube 2. The front end of the extrusion tube 2 is rotatably connected to the rear end position of the gear ring 203. The gear ring 203 is located outside the extrusion port of the extrusion tube 2. A feed rack 102 is arranged at the top position of the material rack 101, and a motor A103 is fixedly installed at the lower rear end position of the material rack 101.

[0025] The rotating shaft of motor A103 is fixedly connected to the middle of the rear end of the spiral extruder 104. The middle and rear position of the spiral extruder 104 is located inside the lower part of the feed rack 102. The front end of the feed rack 102 is connected to the rear end of the extrusion tube 2. The middle and front position of the spiral extruder 104 is located inside the extrusion tube 2. An inspection port is provided at the lower front position of the extrusion tube 2 to facilitate subsequent cleaning and maintenance of the inside of the extrusion tube 2.

[0026] A cooling fan 204 is symmetrically arranged at the upper and lower positions of the front end of the gear ring 203, below the meshing gear 202.

[0027] When using:

[0028] Open the feed port of the feed rack 102 and slowly and evenly pour the pretreated thermoplastic elastomer plastic raw material into the feed rack 102. Control the material addition speed to avoid the raw material from accumulating and blocking in the feed rack 102, and ensure that the raw material can smoothly contact the spiral extrusion part 104 below.

[0029] Start motor A103, whose shaft drives the screw extruder 104 to rotate. When the screw extruder 104 rotates, it conveys the raw material in the feed rack 102 forward. The raw material enters the extrusion tube 2 through the connection between the feed rack 102 and the extrusion tube 2. Under the continuous extrusion of the screw extruder 104, the raw material is compacted and shaped in the extrusion tube 2 and moves towards the extrusion port at the front end of the extrusion tube 2 to complete the extrusion joint.

[0030] Just as the plastic raw material is about to be extruded from the extrusion nozzle, motor B201 is started. The shaft of motor B201 drives gear 202 to rotate. Since gear 202 meshes with gear ring 203, gear ring 203 rotates around the front end of extrusion tube 2 along with gear 202. The cooling fan 204 at the front end of gear ring 203 rotates synchronously, generating a uniform cooling airflow to prepare for cooling the extruded product. Under the continuous extrusion of the spiral extruder 104, the plastic raw material is extruded from the extrusion nozzle of extrusion tube 2 to form a product of a specific shape. The airflow generated by the rotating cooling fan 204 acts evenly on the extruded product, quickly cooling and solidifying it. Workers can perform subsequent processing such as traction and cutting on the molded product as needed.

[0031] Although this application has been described with reference to the foregoing embodiments, those skilled in the art will understand that various changes can be made without departing from the spirit and scope of this application as defined by the appended claims. While this specification contains details of many specific implementations, these should not be construed as limiting the scope of the claims, but rather as descriptions of features specific to particular embodiments. The scope of this application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. A thermoplastic elastomer plastic extrusion molding preparation device, characterized by: Includes a support frame (1); a material rack (101) is provided inside the support frame (1), an extrusion tube (2) is fixedly installed at the lower front position of the material rack (101), an extrusion port is provided at the middle position of the front end of the extrusion tube (2), a motor B (201) is fixedly installed at the front top position of the extrusion tube (2), the front end shaft of the motor B (201) is fixedly connected to the middle position of the rear end of the gear (202), the gear (202) is located at the upper front position of the extrusion tube (2), the front end position of the extrusion tube (2) is rotatably connected to the rear end position of the gear ring (203), and the gear ring (203) is located outside the extrusion port of the extrusion tube (2).

2. The thermoplastic elastomer extrusion molding preparation apparatus as described in claim 1, characterized in that: The material rack (101) is provided with a feeding rack (102) at the top position, and a motor A (103) is fixedly installed at the lower rear end position of the material rack (101).

3. The thermoplastic elastomer extrusion molding preparation apparatus as described in claim 2, characterized in that: The rotating shaft of the motor A (103) is fixedly connected to the middle position of the rear end of the spiral extruder (104). The middle and rear position of the spiral extruder (104) is located inside the lower part of the feed rack (102). The front end of the feed rack (102) is connected to the rear end of the extrusion tube (2).

4. The thermoplastic elastomer extrusion molding preparation apparatus as described in claim 3, characterized in that: The front-middle position of the spiral extruder (104) is located inside the extrusion tube (2), and an inspection port is provided at the lower front position of the extrusion tube (2).

5. The thermoplastic elastomer extrusion molding apparatus as described in claim 1, characterized in that: The gear ring (203) is positioned above the meshing gear (202) and below it. A cooling fan (204) is symmetrically arranged at the upper and lower positions of the front end of the gear ring (203).

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