Coupling for injection molding machine

Abstract

The utility model relates to the field of injection molding machine metal fittings, in particular to a coupling for an injection molding machine, which comprises a first connector, a first shaft body fixedly connected to one side of the first connector, and a second shaft body fixedly connected to the other end of the first shaft body far away from the first connector. A first connector is fixedly connected to one end of the first shaft body, a second connector is fixedly connected to the other end, away from the first shaft body, of the second shaft body, and first chamfer parts are symmetrically arranged on the two side edges of the arc outer wall of the first connector. The coupling can be assembled and connected through the first screw hole and the second screw hole, and the thread part of the second connector is used for matching and connecting the second connector with other accessories, so that the connection mode of the coupling and other accessories of the injection molding machine can be changed, welding together is not needed, the coupling can be disassembled, and the practicability of the coupling is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal accessories for injection molding machines, in particular to a coupling for injection molding machines. Background Art

[0002] An injection molding machine is a primary molding device used to create various shapes of plastic products from thermoplastics or thermosetting plastics using molds. The machine heats the plastic material, melting it and injecting it into the mold cavity under high pressure. After cooling, the desired plastic product is formed. Injection molding machines come in various types, including vertical, horizontal, and all-electric models, and are widely used in industrial production.

[0003] Injection molding machines require the use of a large number of metal accessories, among which couplings are used. Couplings, also known as couplings, are mechanical parts used to connect two shafts in different mechanisms so that they rotate together to transmit torque. Some couplings have relatively simple structures, so their connection method is to weld them together with other accessories. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a coupling for an injection molding machine.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A coupling for an injection molding machine, comprising a first connector, wherein one side of the first connector is fixedly connected to a first shaft, an end of the first shaft away from the first connector is fixedly connected to a second shaft, and an end of the second shaft away from the first connector is fixedly connected to the second connector;

[0007] A first chamfered portion is symmetrically provided on both sides of the arc outer wall of the first connector, a second mounting hole is provided in the middle of the other side surface of the first connector away from the first axis body, a plurality of first screw holes are evenly provided on one side surface of the first connector and located outside the second mounting hole, and a plurality of second screw holes are evenly provided on the outside of the first screw hole.

[0008] In addition, a preferred structure is that a positioning groove is provided on the first connector at the second mounting hole.

[0009] In addition, a preferred structure is that an arc step is provided on the outer wall of the connection between the first shaft body and the second shaft body, and an arc groove is provided on the outer wall of the connection between the first shaft body and the first connector.

[0010] In addition, the preferred structure is that a conical portion is provided on the outer wall of the second shaft, a groove is provided on the outer wall of the second shaft body between the conical portion and the first shaft body, and a second chamfered portion is provided on the outer wall of the connection between the second shaft body and the second connector.

[0011] In addition, a preferred structure is that a threaded portion is provided on the outer wall of the second connector.

[0012] In addition, a preferred structure is that a second mounting hole is opened in the middle of the surface of one side of the second connector.

[0013] The beneficial effects of the present invention are as follows: by arranging the first screw hole and the second screw hole on the first connecting head, the first connecting head can be assembled and connected with other accessories through the arranged first screw hole and the second screw hole, and the threaded portion of the second connecting head is used for the second connecting head to cooperate with the other accessories to connect, so that the connection method of the coupling and other accessories of the injection molding machine can be changed without welding them together, so that the coupling can be disassembled, thereby improving the practicality of the coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the coupling structure Figure 1 ;

[0015] Figure 2 Schematic diagram of the coupling structure Figure 2 ;

[0016] Figure 3 Schematic diagram of the coupling structure Figure 3 ;

[0017] Figure 4 for Figure 3 A magnified view of middle A;

[0018] Figure 5 Schematic diagram of the internal structure of the coupling.

[0019] In the figure: 1 first connecting head, 11 first chamfered portion, 12 first screw hole, 13 second screw hole, 14 positioning groove, 2 first shaft, 21 circular arc step, 22 circular arc groove, 3 second shaft, 31 conical portion, 32 groove, 33 second chamfered portion, 4 second connecting head, 41 threaded portion, 5 first mounting hole, 6 second mounting hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-5 A coupling for an injection molding machine includes a first connector 1, one side of the first connector 1 is fixedly connected to a first shaft 2, the other end of the first shaft 2 away from the first connector 1 is fixedly connected to a second shaft 3, and the other end of the second shaft 3 away from the first shaft 2 is fixedly connected to a second connector 4;

[0022] Moreover, first chamfered portions 11 are symmetrically provided on both sides of the arc outer wall of the first connector 1, a second mounting hole 6 is provided in the middle of the other side surface of the first connector 1 away from the first shaft 2, a plurality of first screw holes 12 are evenly provided on one side surface of the first connector 1 and located on the outside of the second mounting hole 6, and a plurality of second screw holes 13 are evenly provided on the outside of the first screw hole 12. The first thread 12 and the second thread 13 enable the first connector 1 to connect different accessories.

[0023] The first connector 1 is provided with a positioning groove 14 at the second mounting hole 6 , and the positioning groove 14 serves as a positioning function.

[0024] At the same time, an arc step 21 is provided on the outer wall of the connection between the first shaft body 2 and the second shaft body 3 , and an arc groove 22 is provided on the outer wall of the connection between the first shaft body 2 and the first connector 1 .

[0025] In addition, a conical portion 31 is provided on the outer wall of the second shaft body 3, a groove 32 is provided on the outer wall of the second shaft body 3 between the conical portion 31 and the first shaft body 2, and a second chamfered portion 33 is provided on the outer wall at the connection between the second shaft body 3 and the second connecting head 4. The conical portion 31 is used to adapt to other accessories of the injection molding machine.

[0026] Moreover, a threaded portion 41 is provided on the outer wall of the second connector 4 , and a second mounting hole 5 is opened in the middle of one side surface of the second connector 4 . The threaded portion 41 is used to connect the second connector 4 to other accessories.

[0027] In this embodiment, by setting the first screw hole 12 and the second screw hole 13, when the first connecting head 1 is connected to other accessories, the first screw hole 12 and the second screw hole 13 can be assembled and connected, and the threaded portion 41 of the second connecting head 4 is used for the second connecting head 4 to cooperate with other accessories, and the first mounting hole 5 and the second mounting hole 6 are used for the installation of other accessories.

[0028] In the utility model, by setting the first screw hole 12 and the second screw hole 13 on the first connecting head 1, when the first connecting head 1 is connected with other accessories, the first screw hole 12 and the second screw hole 13 can be used to assemble and connect, and the threaded portion 41 of the second connecting head 4 is used for the second connecting head 4 to cooperate with other accessories. In this way, the connection method of the coupling and other accessories of the injection molding machine can be changed without welding them together, so that the coupling can be disassembled, thereby improving the practicality of the coupling.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coupling for an injection molding machine, comprising a first connector (1), characterized in that: One side of the first connector (1) is fixedly connected to a first shaft (2), the other end of the first shaft (2) away from the first connector (1) is fixedly connected to a second shaft (3), and the other end of the second shaft (3) away from the first shaft (2) is fixedly connected to a second connector (4); First chamfered portions (11) are symmetrically provided at both sides of the arc outer wall of the first connector (1); a second mounting hole (6) is provided in the middle of the other side surface of the first connector (1) away from the first shaft (2); a plurality of first screw holes (12) are evenly provided on one side surface of the first connector (1) and located outside the second mounting hole (6); and a plurality of second screw holes (13) are evenly provided on the outside of the first screw hole (12).

2. The coupling for an injection molding machine according to claim 1, characterized in that: The first connector (1) is provided with a positioning groove (14) at the second mounting hole (6).

3. The coupling for an injection molding machine according to claim 1, characterized in that: An arc step (21) is provided on the outer wall of the connection between the first shaft body (2) and the second shaft body (3), and an arc groove (22) is provided on the outer wall of the connection between the first shaft body (2) and the first connector (1).

4. The coupling for an injection molding machine according to claim 3, characterized in that: A conical portion (31) is provided on the outer wall of the second shaft body (3); a groove (32) is provided on the outer wall of the second shaft body (3) between the conical portion (31) and the first shaft body (2); and a second chamfered portion (33) is provided on the outer wall of the connection between the second shaft body (3) and the second connector (4).

5. The coupling for an injection molding machine according to claim 4, characterized in that: A threaded portion (41) is provided on the outer wall of the second connector (4).

6. The coupling for an injection molding machine according to claim 5, characterized in that: A second mounting hole (5) is provided in the middle of a surface on one side of the second connector (4).

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