CN214926570U

CN214926570U - Coupler mold structure

Info

Publication number: CN214926570U
Application number: CN202023286865.9U
Authority: CN
Inventors: 刘亚良
Original assignee: SUZHOU INDUSTRIAL PARK XIELI PLASTIC CO LTD
Current assignee: SUZHOU INDUSTRIAL PARK XIELI PLASTIC CO LTD
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-30
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to the field of dies, and discloses a coupler die structure, which comprises a base, and a bearing plate, a rear die plate, a front die plate, a water gap plate, a hot runner plate, a panel and a heat insulation plate which are arranged on the base in sequence; a front mold cavity is arranged in the front mold plate, a rear mold cavity is arranged in the rear mold plate, a front mold insert used for forming a structure at a raised strip position on the coupler is arranged in the front mold cavity, a rear mold insert used for forming a structure at an inner cylinder position on the coupler is arranged in the rear mold cavity, and a thread insert used for forming the inner side wall of the inner cylinder and an internal thread structure is rotatably arranged in the rear mold insert; the bearing plate is provided with a driving device for controlling the rotation of the threaded insert; and a forming cavity for forming the coupler is formed among the front mould cavity, the rear mould cavity, the front mould insert, the rear mould insert and the threaded insert. In this way, the utility model discloses can the injection moulding shaft coupling, guarantee the structure of shaft coupling, and the later stage drawing of patterns is simple, easy.

Description

Coupler mold structure

Technical Field

The utility model relates to a mould field especially relates to a coupler mould structure.

Background

The coupling is a device for connecting two shafts or a shaft and a rotating part, rotating together in the process of transmitting motion and power and not separating under normal conditions. Sometimes it is used as a safety device to prevent the coupled machine parts from bearing excessive load, and it plays the role of overload protection.

As shown in fig. 1 to 4, in the existing coupling 9, a protruding strip 91 is distributed on an inner side wall of an upper end of the coupling 9 along a length direction of the coupling, an inner cylinder 92 is arranged at a lower end of the coupling, an inner thread 921 is further arranged on an inner side wall of the inner cylinder 92, and an intermediate ring 93 is arranged inside the coupling 9 and located between the protruding strip 91 and the inner cylinder 92. Since the coupling 9 is a special-shaped part, a special mold is designed for molding.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a shaft coupling mould structure, can the injection moulding shaft coupling, guarantees the structure of shaft coupling, and the later stage drawing of patterns is simple, easy.

In order to solve the technical problem, the utility model discloses a technical scheme be: providing a coupler mold structure, which comprises a base, and a bearing plate, a rear template, a front template, a water gap plate, a hot runner plate, a panel and a heat insulation plate which are sequentially arranged on the base; the method is characterized in that: a front mold cavity is arranged in the front mold plate, a rear mold cavity is arranged in the rear mold plate, and the rear mold cavity is matched with the front mold cavity and then can correspondingly form an external structure of the coupler; a front mold insert for molding a structure at a raised strip position on the coupler is arranged in the front mold cavity, a rear mold insert for molding a structure at an inner cylinder position on the coupler is arranged in the rear mold cavity, and a thread insert for molding the inner side wall of the inner cylinder and an internal thread structure is rotatably arranged in the rear mold insert; the bearing plate is provided with a driving device for controlling the rotation of the threaded insert; a forming cavity for forming the coupler is formed among the front mould cavity, the rear mould cavity, the front mould insert, the rear mould insert and the threaded insert; the molding cavity is multiple.

Preferably, a pressure plate abutting against the upper end of the front mold insert is fixedly installed in the front mold cavity, the pressure plate is opposite to the hot nozzle, and a first glue flow channel for receiving glue discharged from the hot nozzle is formed in the pressure plate; and a second glue flow channel for feeding glue to the molding cavity is arranged in the front mold insert, the upper end of the second glue flow channel is communicated with the first glue flow channel, and the lower end of the second glue flow channel is communicated with the middle ring of the molding cavity.

Preferably, the number of the rear templates is two, namely a first rear template and a second rear template; the rear mold cavity is fixedly arranged on the first rear template, the rear mold insert is fixedly arranged on the second rear template, and the rear mold insert is inserted into the rear mold cavity in a matched manner; the threaded insert is rotatably mounted on the bearing plate, and the upper end of the threaded insert penetrates through the second rear template and is inserted into the rear mold insert in a matched mode.

Preferably, the driving device comprises a gear transmission mechanism installed in the bearing plate, a chain transmission mechanism installed below the bearing plate, and a driving motor installed at one side of the bearing plate; the gear transmission mechanism comprises a driving gear and a plurality of driven gears, and the plurality of driven gears are respectively connected with the plurality of threaded inserts in a one-to-one correspondence manner; the output shaft of the driving motor is connected with a driving chain wheel of the chain transmission mechanism, a driven chain wheel of the chain transmission mechanism is coaxially connected with a driving gear of the gear transmission mechanism, and the driving motor works to control the plurality of threaded inserts to rotate around the axis of the driving motor.

Preferably, the ejector pin on the base correspondingly penetrates through the bearing plate and the threaded insert to abut against the front mold insert, and the area of the end face of the ejector pin top is larger than the contact surface of the ejector pin top and the front mold insert.

Preferably, the base includes square iron, thimble board and bottom plate, square iron with the equal fixed mounting of thimble board is in on the bottom plate, square iron about thimble board symmetry.

The utility model has the advantages that: the utility model discloses can the injection moulding shaft coupling, guarantee the structure of shaft coupling. The design of the pressure plate can ensure the position of the front mold insert and the structure of the product; the design of the first glue runner in the pressing plate and the second glue runner in the front mold insert can ensure the glue feeding forming effect. The driving device can better facilitate demoulding, so that the demoulding is easy, and the structure composition is simple and the installation is easy. The area of the end surface of the ejector pin top is larger than the contact surface of the ejector pin top and the front mold insert, so that a product can be well ejected. The coupler mold structure has the advantages of simple overall structure, reasonable composition, and convenient and easy later-stage demolding.

Drawings

Fig. 1 is a schematic perspective view of a conventional coupling;

fig. 2 is a schematic perspective view of a conventional coupling at another angle;

FIG. 3 is a schematic cross-sectional view of a conventional coupling in one direction;

FIG. 4 is a cross-sectional structural view of a conventional coupling in another direction;

fig. 5 is a schematic perspective view of a preferred embodiment of a coupler mold structure according to the present invention;

fig. 6 is a schematic cross-sectional structural view of a coupling mold structure according to the present invention;

fig. 7 is a schematic perspective view of a front mold insert in a mold structure of a coupler according to the present invention;

fig. 8 is a schematic perspective view of a front mold insert at another angle in a mold structure of a coupler according to the present invention;

fig. 9 is a schematic perspective view of a rear mold insert in a mold structure of a coupler according to the present invention;

fig. 10 is a schematic perspective view of a threaded insert in a mold structure of a coupler according to the present invention;

fig. 11 is a schematic perspective view of a driving device in a mold structure of a coupler according to the present invention.

The parts in the drawings are numbered as follows: 1. a heat insulation plate; 2. a panel; 3. a hot runner plate; 31. a hot nozzle; 4. a water gap plate; 41. a hot nozzle sleeve; 5. a front template; 51. a front mold cavity; 511. pressing a plate; 52. a front mold insert; 61. a first rear template; 611. a rear mold cavity; 62. a second rear template; 621. a rear mold insert; 7. a carrier plate; 71. a threaded insert; 72. a drive device; 721. a gear transmission mechanism; 722. a chain transmission mechanism; 723. a drive motor; 8. a base; 81. square iron; 82. an ejector plate; 821. a thimble; 83. a base plate; 9. a coupling; 91. a raised strip; 92. an inner barrel; 921. an internal thread; 93. an intermediate ring.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1 to 11, an embodiment of the present invention includes:

a coupling mold structure comprising: the hot runner plate comprises a base 8, and a carrier plate 7, a second rear template 62, a first rear template 61, a front template 5, a nozzle plate 4, a hot runner plate 3, a panel 2 and a heat insulation plate 1 which are arranged on the base 8 in sequence. A hot nozzle sleeve 41 corresponding to the hot nozzle 31 is fixedly installed on the hot runner plate 3. A front mold cavity 51 is fixedly installed in the front mold plate 5, a rear mold cavity 611 is fixedly installed in the first rear mold plate 61, and the rear mold cavity 611 and the front mold cavity 51 can be matched to form an external structure of the coupler 9; a front mold insert 52 for molding a structure at the protruding strip 91 on the coupler 9 is arranged in the front mold cavity 51; a rear mold insert 621 for forming a structure at the upper inner cylinder 92 of the coupling 9 is fixedly installed in the second rear mold plate 62, and the rear mold insert 621 is inserted into the rear mold cavity 611 in a matching manner; a threaded insert 71 for forming the inner side wall of the inner cylinder 92 and the structure of the internal thread 921 is rotatably mounted on the carrier plate 7, and the upper end of the threaded insert 71 passes through the second rear template 62 and is fittingly inserted into the rear template insert 621; a molding cavity for molding the coupling 9 is formed among the front mold cavity 51, the rear mold cavity 611, the front mold insert 52, the rear mold insert 621 and the threaded insert 71. A pressure plate 511 which abuts against the upper end of the front mold insert 52 is fixedly installed in the front mold cavity 51, the pressure plate 511 is also opposite to the hot nozzle 31, and a first glue flow channel for receiving glue discharged from the hot nozzle 31 is formed in the pressure plate 511; a second glue flow channel for feeding glue to the molding cavity is formed in the front mold insert 52, the upper end of the second glue flow channel is communicated with the first glue flow channel, and the lower end of the second glue flow channel is communicated with a middle ring 93 of the molding cavity; the design can ensure the glue feeding effect. The thimble 821 on the base 8 correspondingly penetrates through the carrier plate 7 and the threaded insert 71 to abut against the front mold insert 52, and the thimble 821 partially contacts with the molding cavity, that is, the area of the top end surface of the thimble 821 is larger than the contact surface of the thimble 821 with the front mold insert 52, so as to facilitate the later demolding. The number of the forming cavities is two, so that two couplers 9 can be formed in one-time injection molding mode. The carrier plate 7 is provided with a driving device 72 for controlling the rotation of the threaded insert 71. The driving device 72 comprises a gear transmission mechanism 721 installed in the carrier plate 7, a chain transmission mechanism 722 installed below the carrier plate 7, and a driving motor 723 installed at one side of the carrier plate 7; the gear transmission mechanism 721 comprises a driving gear and two driven gears, and the two driven gears are respectively and fixedly connected with the lower ends of the two threaded inserts 71; the output shaft of the driving motor 723 is connected with the driving sprocket of the chain transmission mechanism 722, the driven sprocket of the chain transmission mechanism 722 is coaxially connected with the driving gear of the gear transmission mechanism 721, and the driving motor 723 can control the two threaded inserts 71 to rotate around the axes thereof when working, so that the threaded inserts 71 are conveniently separated from the molded coupler 9, and demolding is simple and easy. The base 8 comprises square iron 81, an ejector plate 82 and a bottom plate 83, the square iron 81 and the ejector plate 82 are fixedly mounted on the bottom plate 83, and the square iron 81 is symmetrical about the ejector plate 82; this design may result in a higher overall structural strength of the base 8.

The utility model discloses can injection moulding shaft coupling 9, guarantee shaft coupling 9's structure. The design of the pressure plate 511 can ensure the position of the front mold insert 52 and ensure the structure of the product; the first glue flow channel in the pressing plate 511 and the second glue flow channel in the front mold insert 52 are designed to ensure the glue feeding forming effect. The driving device 72 can better facilitate demoulding, so that demoulding is easy, and the structure and the composition are simple and the installation is easy. The area of the top end surface of the ejector pin 821 is larger than the contact surface of the ejector pin with the front mold insert 52, so that a product can be ejected well. The coupler mold structure has the advantages of simple overall structure, reasonable composition, and convenient and easy later-stage demolding.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A coupler mold structure comprises a base, and a bearing plate, a rear template, a front template, a water gap plate, a hot runner plate, a panel and a heat insulation plate which are sequentially arranged on the base; the method is characterized in that: a front mold cavity is arranged in the front mold plate, a rear mold cavity is arranged in the rear mold plate, and the rear mold cavity is matched with the front mold cavity and then can correspondingly form an external structure of the coupler; a front mold insert for molding a structure at a raised strip position on the coupler is arranged in the front mold cavity, a rear mold insert for molding a structure at an inner cylinder position on the coupler is arranged in the rear mold cavity, and a thread insert for molding the inner side wall of the inner cylinder and an internal thread structure is rotatably arranged in the rear mold insert; the bearing plate is provided with a driving device for controlling the rotation of the threaded insert; a forming cavity for forming the coupler is formed among the front mould cavity, the rear mould cavity, the front mould insert, the rear mould insert and the threaded insert; the molding cavity is multiple.

2. A coupling mold structure according to claim 1, wherein: a pressing plate which is abutted against the upper end of the front mold insert is fixedly arranged in the front mold cavity, the pressing plate is opposite to the hot nozzle, and a first glue flow channel for receiving glue discharged from the hot nozzle is arranged on the pressing plate; and a second glue flow channel for feeding glue to the molding cavity is arranged in the front mold insert, the upper end of the second glue flow channel is communicated with the first glue flow channel, and the lower end of the second glue flow channel is communicated with the middle ring of the molding cavity.

3. A coupling mold structure according to claim 1, wherein: the two rear templates are respectively a first rear template and a second rear template; the rear mold cavity is fixedly arranged on the first rear template, the rear mold insert is fixedly arranged on the second rear template, and the rear mold insert is inserted into the rear mold cavity in a matched manner; the threaded insert is rotatably mounted on the bearing plate, and the upper end of the threaded insert penetrates through the second rear template and is inserted into the rear mold insert in a matched mode.

4. A coupling mold structure according to claim 1, wherein: the driving device comprises a gear transmission mechanism arranged in the bearing plate, a chain transmission mechanism arranged below the bearing plate and a driving motor arranged on one side of the bearing plate; the gear transmission mechanism comprises a driving gear and a plurality of driven gears, and the plurality of driven gears are respectively connected with the plurality of threaded inserts in a one-to-one correspondence manner; the output shaft of the driving motor is connected with a driving chain wheel of the chain transmission mechanism, a driven chain wheel of the chain transmission mechanism is coaxially connected with a driving gear of the gear transmission mechanism, and the driving motor works to control the plurality of threaded inserts to rotate around the axis of the driving motor.

5. A coupling mold structure according to claim 1, wherein: the ejector pin on the base correspondingly penetrates through the bearing plate and the threaded insert to abut against the front mold insert, and the area of the end face of the ejector pin top is larger than the contact surface of the ejector pin top and the front mold insert.

6. A coupling mold structure according to claim 1, wherein: the base includes square iron, thimble board and bottom plate, square iron with the equal fixed mounting of thimble board is in on the bottom plate, square iron about thimble board symmetry.