CN216241749U

CN216241749U - Precision plastic mold fastener

Info

Publication number: CN216241749U
Application number: CN202122731410.1U
Authority: CN
Inventors: 翁晓文
Original assignee: Shenzhen Hongchangsheng Precision Plastic Mould Co ltd
Current assignee: Shenzhen Hongchangsheng Precision Plastic Mould Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-04-08
Anticipated expiration: 2031-11-09

Abstract

The utility model provides a precise plastic mold fastener, which relates to the technical field of fasteners and comprises a threaded sleeve, wherein a connecting component is connected inside the threaded sleeve in a threaded manner, the connecting component comprises a threaded rod, a connecting cylinder is fixedly connected inside the threaded rod, a first spring is sleeved outside a connecting cylinder body, a connecting rod is connected inside the connecting cylinder body in a threaded manner, a movable block is sleeved outside a connecting rod body, four pushing blocks are fixedly connected on the outer peripheral surface of the movable block, clamping blocks corresponding to clamping grooves are respectively and movably arranged on one side of each pushing block, a push rod is fixedly connected at one end of the connecting rod far away from the connecting cylinder, a stop block is fixedly connected at one end of the push rod far away from the connecting rod, connecting holes are respectively formed in the inner part of each stop and one end of the threaded sleeve, the pushing blocks are driven to move by the push rod, and then the clamping blocks are pushed into the clamping grooves of the threaded sleeve, and then fix threaded sleeve and threaded rod, avoid taking place to become flexible in the course of the work.

Description

Precision plastic mold fastener

Technical Field

The utility model relates to the technical field of fasteners, in particular to a precision plastic mold fastener.

Background

The fastener is a mechanical part which is used for fastening and connecting and has wide application, various fasteners can be seen on various machines, equipment, dies, structures, tools, instruments, articles and the like, the fastener is a mechanical basic part which has the most wide application, and generally comprises a bolt, a stud, a screw and other parts, wherein the bolt is a fastener consisting of a head part and a screw rod and needs to be matched with a nut for use.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a precision plastic mold fastener which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a precision plastic mold fastener comprises a threaded sleeve, four clamping grooves are arranged in the threaded sleeve, the interior of the threaded sleeve is in threaded connection with a connecting assembly, the connecting assembly comprises a threaded rod, a cavity is arranged in the threaded rod, one end of the cavity is fixedly connected with a connecting cylinder, a first spring is sleeved outside the cylinder body of the connecting cylinder, the interior of the connecting cylinder body is connected with a connecting rod through a thread, a movable block is sleeved outside the rod body of the connecting rod, the first spring is fixedly connected with the movable block, four push blocks are fixedly connected with the outer peripheral surface of the movable block, one side of the push block is respectively and movably provided with a fixture block corresponding to the clamping groove, one end of the connecting rod far away from the connecting cylinder is fixedly connected with a push rod, the push rod is kept away from the one end fixedly connected with dog of connecting rod, the connecting hole has all been seted up with threaded sleeve one end in the dog.

Preferably, the middle part of the threaded rod is provided with a movable groove for the push block to move, and the two sides of the movable groove are fixedly connected with a second spring on the outer peripheral surface of the threaded rod.

Preferably, one end, far away from the threaded rod, of the second spring is fixedly connected with the clamping block, and the bottom end of the clamping block is provided with a T-shaped guide groove.

Preferably, the upper surface of the middle part of the threaded rod is fixedly connected with a T-shaped guide block on one side of the movable groove, and the T-shaped guide block is connected with the T-shaped guide groove in a sliding manner.

Preferably, the one end fixedly connected with annular connecting block that the dog was kept away from to the push rod, annular spread groove has been seted up to the one end that the movable block is close to the push rod, annular connecting block rotates to be connected inside annular spread groove.

Preferably, the push rod is rotatably connected with the inside of the cavity, and the push rod is rotatably connected with the movable block.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the cavity is formed in the threaded rod, the connecting rod is driven to rotate in the connecting cylinder by rotating the push rod, so that the movable block and the push block are driven to move towards the direction close to the connecting cylinder, the push block with the inclined plane can be gradually pushed outwards in the moving process by arranging the push block, the clamping block is clamped in a corresponding clamping groove in the threaded sleeve, the phenomenon that the threaded sleeve is loosened in the working process of a die is avoided, and abrasion between the threaded sleeve and a part is avoided;

(2) through setting up first spring and second spring, can play the effect of reseing to movable block and fixture block respectively when dismantling the fastener, through set up corresponding connecting hole in threaded sleeve and dog, after threaded sleeve is connected with the threaded rod, be connected both through the screw, further carry out spacing fixed to the push rod, improve threaded rod internal connection's stability.

Drawings

FIG. 1 is a schematic view of the overall structure of a precision plastic mold fastener according to the present invention;

FIG. 2 is a front view of a precision plastic mold fastener according to the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2 of a precision plastic mold fastener according to the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 3 of a precision plastic mold fastener according to the present invention;

FIG. 5 is an exploded view of a portion of a precision plastic mold fastener according to the present invention;

FIG. 6 is an enlarged view of the structure at C in FIG. 5 of a precision plastic mold fastener according to the present invention.

In the figure: 1. a threaded sleeve; 2. a connecting assembly; 201. a threaded rod; 202. a cavity; 203. a first spring; 204. a connecting cylinder; 205. a connecting rod; 206. a movable groove; 207. a push block; 208. a movable block; 209. a clamping block; 210. a second spring; 211. an annular connecting groove; 212. an annular connecting block; 213. a T-shaped guide groove; 214. a T-shaped guide block; 3. a push rod; 4. a stopper; 5. connecting holes; 6. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1-6, a precision plastic mold fastener, including threaded sleeve 1, threaded sleeve 1 has four inside draw-in grooves 6, threaded sleeve 1 has inside threaded connection to have coupling assembling 2, coupling assembling 2 includes threaded rod 201, threaded rod 201 has inside cavity 202 of having seted up, cavity 202 one end fixedly connected with connecting cylinder 204, connecting cylinder 204 stack shell overcoat is equipped with first spring 203, connecting cylinder 204 stack shell inside threaded connection has connecting rod 205, connecting rod 205 pole body overcoat is equipped with movable block 208, first spring 203 and movable block 208 fixed connection, four ejector pads 207 of movable block 208 outer peripheral face fixedly connected with, ejector pad 207 one side is the movable fixture block 209 that corresponds with draw-in groove 6 that is provided with respectively, connecting rod 205 keeps away from the one end fixedly connected with push rod 3 of connecting cylinder 204, the one end fixedly connected with dog 4 of connecting rod 205 is kept away from to push rod 3, connecting hole 5 has all been seted up with threaded sleeve 1 one end inside the dog 4.

In this embodiment, a movable groove 206 for moving the push block 207 is formed in the middle of the threaded rod 201, and second springs 210 are fixedly connected to two sides of the movable groove 206 and located on the outer peripheral surface of the threaded rod 201.

In this embodiment, one end of the second spring 210 away from the threaded rod 201 is fixedly connected to the latch 209, and a T-shaped guide slot 213 is formed at the bottom end of the latch 209.

When specifically setting up, push block 207 is trapezoidal and is close to one side of fixture block 209 for the scarf, when push block 207 moves towards the direction that is close to connecting cylinder 204, scarf and fixture block 209 contact, thereby impel fixture block 209 towards the direction that is close to draw-in groove 6 gradually, finally make push block 207 card inside draw-in groove 6, prevent that threaded sleeve 1 from taking place not hard up at equipment operation in-process, through set up second spring 210 in fixture block 209 one side, can drive fixture block 209 towards the direction removal of keeping away from draw-in groove 6 when dismantling the fastener, play the effect that resets.

In this embodiment, the upper surface of the middle of the threaded rod 201 is fixedly connected with the T-shaped guide block 214 on one side of the movable groove 206, the T-shaped guide block 214 is slidably connected with the T-shaped guide groove 213, and the T-shaped guide block 214 and the T-shaped guide groove 213 are arranged, so that the guide and the limiting effects can be achieved in the moving process of the fixture block 209, and the moving track of the fixture block 209 is prevented from deviating.

In this embodiment, one end of the push rod 3 away from the stop block 4 is fixedly connected with an annular connecting block 212, one end of the movable block 208 close to the push rod 3 is provided with an annular connecting groove 211, and the annular connecting block 212 is rotatably connected inside the annular connecting groove 211.

In this embodiment, the push rod 3 is rotatably connected to the inside of the cavity 202, and the push rod 3 is rotatably connected to the movable block 208.

When the connecting rod 205 moves inside the connecting cylinder 204, the push rod 3 drives the movable block 208 and the push block 207 to move towards the direction close to the connecting cylinder 204, so that the fixture block 209 can be pushed out outwards.

The working principle of the precision plastic mold fastener is as follows:

when in use, firstly, the threaded rod 201 is in threaded connection with the plastic mold, then the threaded sleeve 1 is sleeved outside the threaded rod 201 in a threaded manner until the inner wall of one end of the threaded sleeve 1 is abutted against the threaded rod 201, at the moment, the position of the clamping groove 6 corresponds to that of the movable groove 206, as shown in fig. 3, the stop block 4 is rotated, the push rod 3 is driven to rotate through the stop block 4, the connecting rod 205 is driven to rotate, the connecting rod 205 is in threaded connection with the inner wall of the connecting cylinder 204, so that the connecting rod 205 and the push rod 3 move upwards, the movable block 208 and the push block 207 are driven to move upwards, the oblique plane outside the push block 207 is contacted with the fixture block 209, during the movement of the push block 207, the fixture block 209 is gradually pushed into the clamping groove 6, the threaded sleeve 1 is limited, the positions of the threaded sleeve 1 and the threaded rod 201 are relatively fixed, and the situation that the threaded sleeve 1 is loosened during the operation of the device is avoided, finally, the stop block 4 is connected with the threaded sleeve 1 through a screw, and on the basis that the connecting rod 205 is in threaded connection with the connecting cylinder 204, the push rod 3 is further limited and fixed, so that the stability of the internal connection of the threaded rod 201 is improved.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a precision plastic mould fastener, includes threaded sleeve (1), its characterized in that: four clamping grooves (6) are formed in the threaded sleeve (1), a connecting assembly (2) is connected to the inner thread of the threaded sleeve (1), the connecting assembly (2) comprises a threaded rod (201), a cavity (202) is formed in the threaded rod (201), one end of the cavity (202) is fixedly connected with a connecting cylinder (204), a first spring (203) is sleeved outside a cylinder body of the connecting cylinder (204), a connecting rod (205) is connected to the inner thread of the cylinder body of the connecting cylinder (204), a movable block (208) is sleeved outside a rod body of the connecting rod (205), the first spring (203) is fixedly connected with the movable block (208), four push blocks (207) are fixedly connected to the outer peripheral surface of the movable block (208), clamping blocks (209) corresponding to the clamping grooves (6) are movably arranged on one side of each push block (207), and a push rod (3) is fixedly connected to one end, far away from the connecting cylinder (204), of the connecting rod (205), one end of the push rod (3) far away from the connecting rod (205) is fixedly connected with a stop block (4), and a connecting hole (5) is formed in the inner portion of the stop block (4) and one end of the threaded sleeve (1).

2. The precision plastic mold fastener of claim 1, wherein: the middle part of the threaded rod (201) is provided with a movable groove (206) for the push block (207) to move, and the two sides of the movable groove (206) are fixedly connected with a second spring (210) on the outer peripheral surface of the threaded rod (201).

3. The precision plastic mold fastener of claim 2, wherein: one end, far away from the threaded rod (201), of the second spring (210) is fixedly connected with the clamping block (209), and a T-shaped guide groove (213) is formed in the bottom end of the clamping block (209).

4. The precision plastic mold fastener of claim 3, wherein: threaded rod (201) middle part upper surface just is located activity groove (206) one side fixedly connected with T type guide block (214), T type guide block (214) and T type guide slot (213) sliding connection.

5. The precision plastic mold fastener of claim 1, wherein: one end fixedly connected with annular connecting block (212) of dog (4) is kept away from in push rod (3), annular connecting groove (211) have been seted up to the one end that movable block (208) are close to push rod (3), annular connecting block (212) rotate to be connected inside annular connecting groove (211).

6. The precision plastic mold fastener of claim 1, wherein: the push rod (3) is rotatably connected with the inside of the cavity (202), and the push rod (3) is rotatably connected with the movable block (208).