TPU sealing strip extrusion molding device

Abstract

The utility model relates to TPU (thermoplastic polyurethane) sealing strip production equipment, and discloses a TPU sealing strip extrusion molding device which comprises an extruder body and a molding discharge head, a discharge pipe is arranged on the extruder body, the molding discharge head is detachably mounted on the discharge pipe, and the molding discharge head is of a two-half structure and comprises a component I and a component II, the first component and the second component are each provided with an extrusion groove, the two extrusion grooves are spliced to form an extrusion hole, and the TPU sealing strip is extruded out of the extrusion hole. The first component and the second component form a disc structure and correspond to the end of the discharging pipe. A plurality of positioning bolts are arranged on the first component and the second component, and the first component and the second component are fixed to the end of the discharging pipe through the positioning bolts. The discharging head of the TPU sealing strip extrusion molding device is of a two-half structure, the two extrusion grooves are adopted to form the extrusion hole, when the discharging head is cleaned, the two parts can be detached, the extrusion grooves are exposed, the discharging head can be conveniently cleaned, and cleaning is more thorough.

Description

Technical Field

[0001] The utility model relates to the technical field of TPU sealing strip production equipment, in particular to a TPU sealing strip extrusion molding device. Background Art

[0002] TPU is a thermoplastic polyurethane elastomer with excellent wear resistance, impact resistance, tear resistance and fatigue resistance, and is widely used in the fields of medical, sports, automobiles, electronics, etc. The extrusion production device is a device that squeezes TPU raw materials from the granular state into the mold, and finally obtains TPU products through a series of processes such as heating, plasticization, and molding.

[0003] In the prior art, a TPU sealing strip extrusion molding device includes a feeding component, a compression transition component, and an extrusion die. The feeding component heats the TPU raw material particles and squeezes them into the compression transition component, which is then extruded through the extrusion die and then cooled to form a TPU sealing strip. Since the shapes of the TPU sealing strips to be produced are different, a variety of extrusion dies are usually provided and detachably installed at the end of the compression transition component. Although the dies can be disassembled and replaced, after the TPU sealing strip is produced, some TPU material usually remains in the extrusion hole of the extrusion die. The material cools and solidifies in the extrusion die, making it inconvenient to remove it. The cleaning of the extrusion die is laborious and time-consuming, and improper cleaning will affect the next use. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the utility model is to overcome the technical problem that the extrusion hole of the extrusion die in the prior art is inconvenient to clean, and to provide a TPU sealing strip extrusion molding device.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a TPU sealing strip extrusion molding device, including an extruder body and a molding discharge head, the extruder body is provided with a discharge pipe, the molding discharge head is detachably installed on the discharge pipe, the molding discharge head is a two-half structure, which includes component one and component two, both component one and component two are provided with extrusion grooves, the two extrusion grooves are assembled into an extrusion hole, and the TPU sealing strip is extruded from the extrusion hole; the component one and component two form a disc structure, and correspond to the end of the discharge pipe; the component one and component two are provided with multiple positioning bolts, and are fixed to the end of the discharge pipe by the positioning bolts.

[0008] Furthermore, a docking protrusion and a docking groove are respectively provided on the sides of the component one and the component two that are close to each other, and the docking protrusion and the docking groove are engaged with each other.

[0009] Furthermore, the docking protrusions and docking grooves are provided in two groups and are distributed in an array along the circumferential direction.

[0010] Furthermore, the cross-section of the docking protrusion and the docking groove is a T-shaped structure.

[0011] Furthermore, a connecting sleeve is sleeved on the outer side of the discharge pipe and the discharge head, and the connecting sleeve is threadedly connected to the discharge pipe. A clamping ring is provided at the outer end of the connecting sleeve, and the inner diameter of the clamping ring is smaller than the outer diameter of the discharge head. The discharge head is clamped by the clamping ring so that it is tightly attached to the end wall of the discharge pipe.

[0012] Furthermore, the clamping ring and the connecting sleeve are an integrated structure.

[0013] Furthermore, an annular sink is provided on the outer side edge of the discharge head, and the clamping ring corresponds to the annular sink and is inserted into the sink.

[0014] 3. Beneficial Effects

[0015] The advantages of the utility model compared with the prior art are:

[0016] 1. The discharge head of the TPU sealing strip extrusion molding device of the utility model is a two-half structure, and two extrusion grooves are used to form an extrusion hole. When cleaning the discharge head, the two parts can be disassembled to expose the extrusion groove, which is convenient for cleaning and can be cleaned more thoroughly.

[0017] 2. By connecting the sleeve and the clamping ring, the two-part discharge head is pressed only on the end of the discharge pipe, which can avoid the misalignment of component one and component two and affect subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a structural schematic diagram of a TPU sealing strip extrusion molding device.

[0019] Figure 2 It is an exploded view of a TPU sealing strip extrusion molding device of the utility model.

[0020] Figure 3 It is an exploded view of a discharge head of a TPU sealing strip extrusion molding device of the utility model.

[0021] Figure 4 The utility model is a schematic diagram of the structure of a discharge pipe of a TPU sealing strip extrusion molding device.

[0022] As shown in the figure: 1. Discharge head; 2. Discharge pipe; 3. Component one; 4. Component two; 5. Extrusion groove; 6. Extrusion hole; 7. Positioning bolt; 8. Docking protrusion; 9. Docking groove; 10. Connecting sleeve; 11. Clamping ring; 12. Annular sink. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] As attached Figure 1 , 2 , 3 shown

[0026] A TPU sealing strip extrusion molding device includes an extruder body (i.e., a feeding component) and a molding discharge head 1 (i.e., an extrusion mold), wherein a discharge pipe 2 (i.e., a compression transition component) is provided on the extruder body, and the molding discharge head 1 is detachably mounted on the discharge pipe 2, and the molding discharge head 1 is a two-half structure, comprising a component 1 3 and a component 2 4, wherein both the component 1 3 and the component 2 4 are provided with an extrusion groove 5, and the two extrusion grooves 5 are assembled into an extrusion hole 6, and the TPU sealing strip is extruded from the extrusion hole 6; the component 1 3 and the component 2 4 form a disc structure, and correspond to the end of the discharge pipe 2; both the component 1 3 and the component 2 4 are provided with a plurality of positioning bolts 7, and are fixed to the end of the discharge pipe 2 by the positioning bolts 7.

[0027] Through the above structure, after replacing the discharge head 1, the component 1 3 is separated from the component 2 4, so that the two extrusion grooves 5 are exposed, which is convenient for cleaning the TPU material remaining inside.

[0028] Embodiment 2

[0029] Based on Example 1, please refer to the attached Figure 3

[0030] A docking protrusion 8 and a docking groove 9 are respectively provided on the side where the component 1 3 and the component 2 4 are close to each other. The docking protrusion 8 and the docking groove 9 are engaged with each other, and the docking protrusion 8 is slidably inserted in the docking groove 9.

[0031] The docking protrusions 8 and docking grooves 9 are provided in two groups and are distributed in an array along the circumferential direction.

[0032] The cross-section of the docking protrusion 8 and the docking groove 9 is a T-shaped structure.

[0033] Through the above structure, component one 3 and component two 4 can be combined and connected to avoid multiple discharge heads 1 being placed in a disorderly manner during storage, resulting in component loss or inconvenience in finding.

[0034] Embodiment 3

[0035] Based on Example 1, please refer to the attached Figure 2

[0036] The discharge pipe 2 and the discharge head 1 are sleeved with a connecting sleeve 10 on the outside. The connecting sleeve 10 is threadedly connected to the discharge pipe 2. A clamping ring 11 is provided at the outer end of the connecting sleeve 10. The inner diameter of the clamping ring 11 is smaller than the outer diameter of the discharge head 1, and the discharge head 1 is clamped by the clamping ring 11 so that it is tightly attached to the end wall of the discharge pipe 2.

[0037] The clamping ring 11 and the connecting sleeve 10 are an integral structure.

[0038] An annular sink 12 is provided on the outer side edge of the discharge head 1 , and the clamping ring 11 corresponds to the annular sink 12 and is inserted therein.

[0039] Since component one 3 is separated from component two 4, it is not convenient to ensure that both of them can fit the discharge pipe 2 to the same degree during installation; through the above structure, the clamping ring 11 simultaneously clamps component one 3 and component two 4, thereby ensuring that both of them can fit the discharge pipe 2 to the same degree, avoiding misalignment and affecting production.

[0040] The specific usage is as follows:

[0041] When replacing the discharge head 1, separate the connecting sleeve 10 from the discharge pipe 2 to expose component one 3 and component two 4 directly, remove the positioning bolt, and then the discharge head 1 can be disassembled. TPU material remains in the extrusion hole 6 of the disassembled discharge head 1, and component one 3 and component two 4 can be separated by offset, which is convenient for cleaning the extrusion groove 5. After cleaning, component one 3 and component two 4 are combined and connected for storage for subsequent use; when installing the discharge head 1, align the discharge head 1 with the end of the discharge pipe 2, and then position and install it with the positioning bolt 7, connect the connecting sleeve 10 to the discharge pipe 2, and press component one 3 and component two 4 with the clamping ring 11, so that both are close to the end wall of the discharge pipe 2, and then tighten the positioning bolt 7 to fix it.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0044] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A TPU sealing strip extrusion molding device, comprising an extruder body and a molding discharge head (1), wherein the extruder body is provided with a discharge pipe (2), and the molding discharge head (1) is detachably mounted on the discharge pipe (2), characterized in that: The molding discharge head (1) is a two-half structure, comprising a component one (3) and a component two (4), wherein both the component one (3) and the component two (4) are provided with an extrusion groove (5), and the two extrusion grooves (5) are combined to form an extrusion hole (6), and the TPU sealing strip is extruded from the extrusion hole (6); The component one (3) and the component two (4) form a disc structure and correspond to the end of the discharge pipe (2); The component one (3) and the component two (4) are both provided with a plurality of positioning bolts (7) and are fixed to the end of the discharge pipe (2) by the positioning bolts (7).

2. A TPU sealing strip extrusion molding device according to claim 1, characterized in that: A docking protrusion (8) and a docking groove (9) are respectively provided on the side where the component one (3) and the component two (4) are close to each other, and the docking protrusion (8) and the docking groove (9) are mutually engaged and clamped.

3. A TPU sealing strip extrusion molding device according to claim 2, characterized in that: The docking protrusions (8) and docking grooves (9) are provided in two groups and are distributed in an array along the circumferential direction.

4. A TPU sealing strip extrusion molding device according to claim 2 or 3, characterized in that: The cross-sections of the docking protrusion (8) and the docking groove (9) are T-shaped structures.

5. A TPU sealing strip extrusion molding device according to claim 1, characterized in that: The discharge pipe (2) and the discharge head (1) are sleeved with a connecting sleeve (10) on their outer sides. The connecting sleeve (10) is threadedly connected to the discharge pipe (2). A clamping ring (11) is provided at the outer end of the connecting sleeve (10). The inner diameter of the clamping ring (11) is smaller than the outer diameter of the discharge head (1). The discharge head (1) is clamped by the clamping ring (11) so that it is tightly attached to the end wall of the discharge pipe (2).

6. A TPU sealing strip extrusion molding device according to claim 5, characterized in that: The clamping ring (11) and the connecting sleeve (10) are an integral structure.

7. A TPU sealing strip extrusion molding device according to claim 6, characterized in that: An annular sink (12) is provided on the outer side edge of the discharge head (1), and the clamping ring (11) corresponds to the annular sink (12) and is inserted therein.

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