Single-screw and double-screw connecting device for extrusion foaming equipment

Abstract

The utility model relates to the technical field of extrusion foaming equipment, and discloses a single-screw and double-screw connecting device used in the extrusion foaming equipment, which comprises a connector, the fixing structure is arranged on the connector, and the fixing structure is used for fixing; the single-screw shaft is arranged at one end of the connector, and the connector is used for being connected with the single-screw shaft; the double-screw shaft is arranged at the other end of the connector, and the connector is used for connecting the double-screw shaft; the fixing holes are formed in the single-screw shaft and the double-screw shaft and are movably connected with the fixing structure, a single-shaft assembling hole is formed in one end of the connector, and an inner cavity of the single-shaft assembling hole is movably connected with the outer surface of the single-screw shaft; a double-shaft assembly hole is formed in the other end of the connector, and an inner cavity of the double-shaft assembly hole is movably connected with the outer surface of the double-screw shaft. According to the utility model, the single screw and the double screws can be conveniently detached and separately cleaned or replaced, and the operation is simple and quick.

Description

TECHNICAL FIELD

[0001] The utility model relates to extrusion foaming equipment technical field, concretely is a single double screw connecting device for extrusion foaming equipment. BACKGROUND

[0002] Extrusion foaming equipment is a kind of equipment for producing plastic foam product, and the process is complex in production, and high-precision control system needs to be used, and its working principle is that plastic powder is melted by heating, then it is extruded through die to form foam product, and in the extrusion process, it is expanded to form foam by adding appropriate amount of gas or chemical substance, and finally the required foam product is formed, and single screw and double screw are key components for plastic extrusion molding.

[0003] Currently single double screw connecting mode is usually sliding connection and electric melting connection, wherein sliding connection shortens two screws and positions them on the same horizontal line, then they are pushed into the same extrusion head, and electric melting connection heats the end of two plastic screw connectors and keeps them together, to assemble them into a single extrusion head, the inventor finds that the above two connecting modes can enhance the strength and stability of the connecting portion, but it is inconvenient to disassemble and separate them for cleaning or replacement, therefore, the present application provides a single double screw connecting device for extrusion foaming equipment. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] In view of the deficiencies in the prior art, the utility model provides a single double screw connecting device for extrusion foaming equipment, which has the advantages of facilitating disassembly, separation, cleaning or replacement of single screw and double screw, and solves the problem of inconvenient disassembly, separation, cleaning or replacement of single double screw.

[0006] (II) technical scheme

[0007] To achieve the above-mentioned purpose of facilitating disassembly, separation, cleaning or replacement of single screw and double screw, the utility model provides the following technical scheme: a single double screw connecting device for extrusion foaming equipment, comprising: a connector;

[0008] A fixing structure is arranged on the connector, and the fixing structure is used for fixing;

[0009] A single screw shaft is arranged on one end of the connector, and the connector is used for connecting the single screw shaft;

[0010] A double screw shaft is arranged on the other end of the connector, and the connector is used for connecting the double screw shaft;

[0011] The fixing hole is movably connected with the fixing structure.

[0012] As a preferred technical scheme of the utility model, a single shaft assembly hole is arranged in one end of the connector, an inner cavity of the single shaft assembly hole is movably connected with an outer surface of the single screw shaft, so as to facilitate assembly of the single screw shaft.

[0013] A double shaft assembly hole is arranged in the other end of the connector, an inner cavity of the double shaft assembly hole is movably connected with an outer surface of the double screw shaft, so as to facilitate assembly of the double screw shaft.

[0014] As a preferred technical scheme of the utility model, a plurality of mounting holes are arranged on the inner cavity walls of the single shaft assembly hole and the double shaft assembly hole, inner cavities of the plurality of mounting holes are movably connected with the fixing structure, so as to facilitate installation of the fixing structure.

[0015] As a preferred technical scheme of the utility model, the inner diameter of the plurality of mounting holes is smaller than the outer diameter, so as to facilitate installation of the fixing structure.

[0016] As a preferred technical scheme of the utility model, the fixing structure comprises a sleeve rod, the sleeve rod is movably connected with the inner cavity of the fixing hole, a ball is fixedly installed on one end of the sleeve rod, an outer surface of the sleeve rod is movably connected with the inner cavity of the mounting hole, the outer surface of the sleeve rod is sleeved with a spring, one end of the spring is in contact with a sleeve ring, the other end of the spring is fixedly connected with the outer surface of the sleeve rod, an outer surface of the sleeve ring is fixedly connected with the inner cavity wall of the mounting hole, an inner cavity of the sleeve ring is movably sleeved with the outer surface of the sleeve rod, when the single screw and the double screw need to be disassembled and separated for cleaning or replacement, the sleeve rod is moved in the thread hole on the fixing hole by reverse screwing of the ball, until the sleeve rod is separated from the thread hole, then a pulling force is applied to the ball, the sleeve rod is separated from the fixing hole, until the sleeve rod is completely separated from the fixing hole and enters the inner cavity of the mounting hole, the single screw shaft and the double screw shaft are taken out from the inner cavities of the single shaft assembly hole and the double shaft assembly hole, so that the single screw and the double screw are conveniently disassembled and separated for cleaning or replacement, and the operation is simple and fast.

[0017] As a preferred technical scheme of the utility model, an outer thread is arranged on the outer surface of the end of the sleeve rod away from the ball, the outer thread is movably connected with the inner cavity of the fixing hole, so as to facilitate installation of the sleeve rod.

[0018] As a preferred technical scheme of the utility model, the inner cavity wall of the fixing hole is provided with an internal thread hole, and the internal thread hole is threadedly connected with the external thread, so that the sleeve connecting rod is fixed on the connector in a threadedly connected manner.

[0019] (Three) beneficial effects

[0020] Compared with the prior art, the utility model provides a single double screw connecting device for extrusion foaming equipment, which has the following beneficial effects:

[0021] 1、 this single double screw connecting device for extrusion foaming equipment, through reverse spiral ball, at this moment the ball drives the sleeve connecting rod to move in the internal thread hole on the fixing hole by thread, until the sleeve connecting rod is separated from the internal thread hole, then the ball is applied with pulling force, at this moment the ball drives the sleeve connecting rod to separate from the fixing hole, until the sleeve connecting rod completely separates from the fixing hole, and the sleeve connecting rod enters the inner cavity of the mounting hole, then the single screw shaft and the double screw shaft are taken out from the single shaft assembly hole inner cavity and the double shaft assembly hole inner cavity respectively, so that the single screw and the double screw are conveniently disassembled and separated for cleaning or replacement, and the operation is simple and fast.

[0022] 2、 this single double screw connecting device for extrusion foaming equipment, by applying pulling force to the ball, at this moment the ball drives the sleeve connecting rod to move in the inner cavity of the mounting hole, and moves away from the connector, then the single screw shaft and the double screw shaft are assembled to the single shaft assembly hole inner cavity and the double shaft assembly hole inner cavity respectively, and the fixing hole is coaxial with the mounting hole, then the screw ball is loosened, at this moment the sleeve connecting rod enters the fixing hole, and is fixed in the inner cavity of the fixing hole in a threadedly connected manner, and the single screw shaft and the double screw shaft are fixed in the connector, during which, the spring changes from the initial state to the elastic deformation of outward extrusion, the elastic deformation of outward extrusion changes to the initial state, and the initial state changes to the elastic deformation of inward extrusion, so that the single screw shaft and the double screw shaft are conveniently assembled and connected, and then the single double screw is conveniently assembled and connected, and the operation is simple and fast. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the whole structure schematic diagram of the utility model;

[0024] Figure 2 It is the whole structure separation schematic diagram of the utility model;

[0025] Figure 3 It is the connector one end schematic diagram of the utility model;

[0026] Figure 4 It is the connector other end schematic diagram of the utility model;

[0027] Figure 5 It is the fixed structure schematic diagram of the utility model.

[0028] In the figure: 1. Connector; 11. Single-axis assembly hole; 12. Double-axis assembly hole; 13. Mounting hole; 2. Fixing structure; 21. Sleeve rod; 211. External thread; 22. Sphere; 23. Spring; 24. Sleeve ring; 3. Single-screw shaft; 4. Double-screw shaft; 5. Fixing hole. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0030] Reference Figure 1-5 , provides a single-screw and double-screw connecting device for use in an extrusion foaming device, comprising: a connector 1;

[0031] The fixing structure 2 is provided on the connector 1 and is used for fixing;

[0032] A single screw shaft 3 is provided on one end of the single screw and is provided on one end of a connector 1. The connector 1 is used to connect the single screw shaft 3.

[0033] A twin-screw shaft 4 is provided on one end of the twin-screw and on the other end of the connector 1. The connector 1 is used to connect the twin-screw shaft 4;

[0034] The fixing hole 5 is provided on the single-screw shaft 3 and the twin-screw shaft 4 and is movably connected to the fixing structure 2 .

[0035] A single-shaft assembly hole 11 is provided inside one end of the connector 1, and the inner cavity of the single-shaft assembly hole 11 is movably connected to the outer surface of the single-screw shaft 3;

[0036] A double-shaft assembly hole 12 is provided inside the other end of the connector 1 , and an inner cavity of the double-shaft assembly hole 12 is movably connected to the outer surface of the twin-screw shaft 4 .

[0037] A plurality of mounting holes 13 are formed on the inner cavity walls of the single-axis assembly hole 11 and the double-axis assembly hole 12 , and the inner cavities of the plurality of mounting holes 13 are movably connected to the fixing structure 2 .

[0038] The inner diameters of the plurality of mounting holes 13 are smaller than the outer diameters.

[0039] The fixing structure 2 includes a sleeve rod 21, which is movably connected to the inner cavity of the fixing hole 5. A sphere 22 is fixedly installed on one end of the sleeve rod 21, and the outer surface of the sleeve rod 21 is movably connected to the inner cavity of the mounting hole 13. A spring 23 is sleeved on the outer surface of the sleeve rod 21, and one end of the spring 23 is contacted and connected with a sleeve ring 24. The other end of the spring 23 is fixedly connected to the outer surface of the sleeve rod 21, the outer surface of the sleeve ring 24 is fixedly connected to the inner cavity wall of the mounting hole 13, and the inner cavity of the sleeve ring 24 is movably sleeved to the outer surface of the sleeve rod 21.

[0040] An external thread 211 is provided on the outer surface of one end of the sleeve rod 21 away from the sphere 22 , and the external thread 211 is movably connected to the inner cavity of the fixing hole 5 .

[0041] An internal threaded hole is formed in the inner wall of the fixing hole 5 , and the internal threaded hole is threadedly connected to the external thread 211 .

[0042] Working principle: By applying tension to the ball 22 fixed on one end of the sleeve rod 21, the ball 22 drives the sleeve rod 21 to move in the inner cavity of the mounting hole 13, and moves in the direction away from the connector 1, and then the single-screw shaft 3 and the double-screw shaft 4 are respectively assembled into the inner cavity of the single-axis assembly hole 11 and the inner cavity of the double-axis assembly hole 12, and the fixing hole 5 is coaxial with the mounting hole 13, and then loosen and spiral the ball 22, at this time the sleeve rod 21 enters the fixing hole 5, and is fixed in the inner cavity of the fixing hole 5 in a threaded connection manner, and at the same time, the single-screw shaft 3 and the double-screw shaft 4 are fixed in the connector 1, during this period, the spring 23 changes from the initial state to outward extrusion and elastic deformation, and the outward extrusion and elastic deformation changes to the initial state, and the initial state changes to inward extrusion and elastic deformation, thereby facilitating the assembly and connection of the single-screw shaft 3 and the double-screw shaft 4, and then facilitating the assembly and connection of the single and double screws, and the operation is simple and quick;

[0043] When it is necessary to disassemble and separate the single and double screws for cleaning or replacement, the reverse spiral ball 22 is used. At this time, the ball 22 drives the sleeve rod 21 to move threadedly in the internal threaded hole on the fixing hole 5 until the sleeve rod 21 is disengaged from the internal threaded hole. Then, a pulling force is applied to the ball 22. At this time, the ball 22 drives the sleeve rod 21 to disengage from the fixing hole 5 until the sleeve rod 21 is completely disengaged from the fixing hole 5 and the sleeve rod 21 enters the inner cavity of the mounting hole 13. Then, the single screw shaft 3 and the double screw shaft 4 are taken out from the inner cavity of the single shaft assembly hole 11 and the inner cavity of the double shaft assembly hole 12 respectively, thereby facilitating the disassembly and separation for cleaning or replacement of the single screw and the double screw, and the operation is simple and quick. The device is not only convenient for disassembly and separation for cleaning or replacement of the single screw and the double screw, but also simple and quick to operate.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A single-screw and twin-screw connecting device for extrusion foaming equipment, characterized in that: include: Connector (1); A fixing structure (2), the fixing structure (2) being provided on the connector (1), and the fixing structure (2) being used for fixing; A single screw shaft (3), the single screw shaft (3) being provided on one end of the connector (1), and the connector (1) being used to connect the single screw shaft (3); A twin-screw shaft (4), the twin-screw shaft (4) being arranged on the other end of the connector (1), and the connector (1) being used to connect the twin-screw shaft (4); A fixing hole (5), the fixing hole (5) being provided on the single-screw shaft (3) and the twin-screw shaft (4), and being movably connected to the fixing structure (2); A single-shaft assembly hole (11) is provided inside one end of the connector (1), and an inner cavity of the single-shaft assembly hole (11) is movably connected to the outer surface of the single-screw shaft (3); A double-shaft assembly hole (12) is provided inside the other end of the connector (1), and an inner cavity of the double-shaft assembly hole (12) is movably connected to the outer surface of the double-screw shaft (4); A plurality of mounting holes (13) are provided on the inner cavity walls of the single-axis assembly hole (11) and the double-axis assembly hole (12), and the inner cavities of the plurality of mounting holes (13) are movably connected to the fixed structure (2); The fixing structure (2) includes a sleeve rod (21), the sleeve rod (21) is movably connected to the inner cavity of the fixing hole (5), a sphere (22) is fixedly mounted on one end of the sleeve rod (21), the outer surface of the sleeve rod (21) is movably connected to the inner cavity of the mounting hole (13), a spring (23) is sleeved on the outer surface of the sleeve rod (21), one end of the spring (23) is contact-connected with a sleeve ring (24), the other end of the spring (23) is fixedly connected to the outer surface of the sleeve rod (21), the outer surface of the sleeve ring (24) is fixedly connected to the inner cavity wall of the mounting hole (13), and the inner cavity of the sleeve ring (24) is movably sleeved to the outer surface of the sleeve rod (21); An outer surface of one end of the sleeve rod (21) away from the sphere (22) is provided with an external thread (211), and the external thread (211) is movably connected to the inner cavity of the fixing hole (5); An internal threaded hole is provided on the inner wall of the fixing hole (5), and the internal threaded hole is threadedly connected to the external thread (211).

2. A single-screw and double-screw connecting device for use in an extrusion foaming device according to claim 1, characterized in that: The inner diameters of the plurality of mounting holes (13) are smaller than the outer diameters.

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