CN217803118U

CN217803118U - Plastic product forming die with ejector pin mechanism

Info

Publication number: CN217803118U
Application number: CN202221820497.8U
Authority: CN
Inventors: 刘水彦
Original assignee: Guangzhou Haitian Auto Parts Co ltd
Current assignee: Guangzhou Haitian Auto Parts Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-11-15
Anticipated expiration: 2032-07-14

Abstract

The utility model relates to the technical field of plastic product forming dies, in particular to a plastic product forming die with an ejector pin mechanism, which comprises a die body, wherein the die body is sequentially provided with a pad, a lower bottom plate and an upper bottom plate from bottom to top, the top of the die body is provided with a transmission device, the bottom of the upper bottom plate is provided with a convex template, a convex die is embedded in the convex template, the top of the lower bottom plate is provided with two symmetrically arranged buffer pads, and the top ends of the two buffer pads are horizontally provided with a baffle; the top of the baffle and the bottom of the lower bottom plate are sequentially provided with an ejector pin mechanism and a pushing device from top to bottom; the top of the baffle is provided with a concave template, a concave die is embedded in the concave template, four guide posts are arranged at the top of the lower bottom plate close to four corners, and the guide posts penetrate through the top of the upper bottom plate and are fixed with the bottom of the transmission device base plate. The utility model discloses when using, be convenient for carry out the drawing of patterns to plastic products forming die through thimble device.

Description

Plastic product forming die with ejector pin mechanism

Technical Field

The utility model relates to a plastic products forming die technical field, specifically speaking relates to a take plastic products forming die of thimble mechanism.

Background

The injection product forming mould is a tool for producing plastic products, and is a processing method used in batch production of parts with complex shapes.

The grant number of CN201520012680.9 discloses a plastic product forming die with an ejector pin mechanism, which comprises a die insert and an inclined top structure, wherein the inclined top structure is attached to the die insert, a plastic product is placed on the inclined top structure, and the ejector pin mechanism is arranged in the inclined top structure; the ejector pin mechanism is composed of a pressing plate, an ejector pin and a spring, one end of the ejector pin is inserted into the pressing plate and is in contact connection with a straight surface of the mold insert, the other end of the ejector pin is aligned with the edge of the inclined ejector structure, and the spring is sleeved on the ejector pin.

According to the device, the ejector pin mechanism is additionally arranged on the inclined ejection device, so that a plastic product can be separated from the inclined ejection structure, the problem of demolding of the plastic product is effectively solved, the demolding process is time-consuming and labor-consuming, and the problem that the plastic product cannot be rapidly demolded still exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take plastic products forming die of thimble mechanism to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a plastic product forming die with an ejector pin mechanism comprises a die body, wherein the die body is sequentially provided with a pad, a lower base plate and an upper base plate from bottom to top, a transmission device is arranged at the top of the die body, a convex die plate is arranged at the bottom of the upper base plate, a convex die is embedded in the convex die plate, two symmetrically arranged buffer pads are arranged at the top of the lower base plate, and baffles are horizontally arranged at the top ends of the two buffer pads; the top of the baffle and the bottom of the lower bottom plate are sequentially provided with an ejector pin mechanism and a pushing device from top to bottom; the transmission device comprises a baffle plate, a lower bottom plate and a transmission device base plate, and is characterized in that a concave template is installed at the top of the baffle plate, a concave die is embedded in the concave template, four guide posts are installed at the top of the lower bottom plate close to four corners, and the guide posts penetrate through the top of the upper bottom plate and are fixed with the bottom of the transmission device base plate.

Preferably, the top of the transmission device is provided with a power part through a base plate, the lower end of the power part is connected with two transmission rods arranged side by side, and the bottoms of the transmission rods penetrate through the bottom of the base plate and are fixed with the top of the upper bottom plate through threads.

Preferably, the ejector pin mechanism comprises two stepped convex columns arranged at the top of the pushing device and an ejector pin inserted at the tops of the two convex columns.

Preferably, the bottom end of the ejector pin rod body is sleeved with a cylinder, the ejector pin rod body at the lower end of the cylinder is sleeved with a return spring, and the top of the ejector pin rod body sequentially penetrates through the top of the baffle and the bottom of the female die.

Preferably, the two circumferential outer walls of the cylinders are fixedly clamped with the baffle, and the tops of the return springs are fixedly welded with the bottoms of the cylinders.

Preferably, the pushing device comprises an air cylinder arranged at the lower end of the lower bottom plate, the top of the air cylinder is connected with a push rod, a fixed sleeve is arranged on a rod body of the push rod, and the top of the fixed sleeve is fixed with the bottom of the lower bottom plate.

Preferably, the top of the push rod penetrates through the top of the lower bottom plate and is in sliding connection with the top of the lower bottom plate, a circular push plate is installed at the top of the push rod, and the top of the circular push plate is tightly abutted to the bottom ends of the two convex columns.

Compared with the prior art, the beneficial effects of the utility model are that:

the plastic product forming die with the ejector pin mechanism is used for demolding the plastic product forming die through the ejector pin mechanism, a plastic product is ejected out of a female die through the ejector pin arranged on the ejector pin mechanism, and the ejector pin mechanism is internally provided with a reset spring and used for resetting the ejector pin.

Drawings

Fig. 1 is a schematic view of the overall structure of the utility model;

FIG. 2 is a sectional view of the whole structure of the utility model;

FIG. 3 is a schematic view of a part of the structure of the utility model;

FIG. 4 is a schematic view of a part of the structure of the utility model;

FIG. 5 is a schematic view of a part of the structure of the utility model;

FIG. 6 is a schematic diagram of the structure of the ejector pin mechanism and the ejector pin mechanism in the utility model

Fig. 7 is a schematic view of a part of the structure of the utility model.

In the figure:

1. a mold body; 10. a foot pad; 10X, guide pillars; 11. a lower base plate; 12. a cushion pad; 13. a baffle plate; 14. a cavity plate; 140. a female die; 15. a convex template; 150. a male die; 16. an upper base plate;

2. a transmission device; 20. a power section; 21. a transmission rod;

3. a thimble mechanism; 30. a convex column; 30X, a return spring; 31. a thimble; 310. a cylinder;

4. a pushing device; 40. a cylinder; 41. a push rod; 410. fixing a sleeve; 42. a circular push plate.

Detailed Description

The technical solution in the present invention will be clearly and completely described below with reference to the drawings in the present invention, and it is obvious that the described utility model is only a part of the utility model rather than the whole utility model. Based on the utility model provides a utility model, all other utility model that ordinary skilled person in the art obtained under the creative work prerequisite are not made, all belong to the utility model discloses the scope of protection.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. "several" means at least two, e.g., two, three, etc., unless explicitly limited otherwise.

Referring to fig. 1-7, the present invention provides a technical solution:

a plastic product forming die with an ejector pin mechanism comprises a die body 1, wherein the die body 1 is sequentially provided with a pad 10, a lower bottom plate 11 and an upper bottom plate 16 from bottom to top, the top of the die body 1 is provided with a transmission device 2, the bottom of the upper bottom plate 16 is provided with a convex die plate 15, a convex die 150 is embedded in the convex die plate 15, the top of the lower bottom plate 11 is provided with two symmetrically arranged cushion pads 12, and the top ends of the two cushion pads 12 are horizontally provided with a baffle 13; the top of the baffle 13 and the bottom of the lower bottom plate 11 are sequentially provided with an ejector pin mechanism 3 and a pushing device 4 from top to bottom; a concave template 14 is arranged at the top of the baffle 13, a concave die 140 is embedded in the concave template 14, four guide posts 10X are arranged at the top of the lower bottom plate 11 close to four corners, and the guide posts 10X penetrate through the top of the upper bottom plate 16 and are fixed with the bottom of a base plate of the transmission device 2; the upper base plate 16 is pushed to move up and down through the arranged pushing device 4, so that the male die 150 in the male die plate 15 is controlled to move up and down conveniently, the four guide columns 10X are arranged to guide the die body 1, and the male die 150 and the female die 140 are conveniently and accurately positioned when being closed; the die body 1 is supported by the foot pads 10, and the die body 1 is cushioned by the cushion pads 12.

In the embodiment, a power part 20 is installed at the top of the transmission device 2 through a base plate, two transmission rods 21 arranged side by side are connected to the lower end of the power part 20, the bottoms of the transmission rods 21 penetrate through the bottom of the base plate and are fixed with the top of the upper base plate 16 in a threaded manner, the transmission rods 21 are powered by the arranged power part 20, so that the transmission rods 21 push the upper base plate 16 to move downwards or upwards, the upper base plate 16 moves to drive the male die 150 on the male die plate 15 and the female die 140 to be closed to form a die cavity, a molten plastic fluid is injected into a sprue at the top of the upper base plate 16 by an injection molding machine, and the molten plastic fluid finally enters the die cavity through a main runner and fills the whole die cavity.

Specifically, the ejector pin mechanism 3 comprises two stepped protruding columns 30 arranged at the top of the pushing device 4 and ejector pins 31 inserted into the tops of the two protruding columns 30, the ejector pins 31 are fixed conveniently through the two stepped protruding columns 30, the ejector pins 31 at the top of the ejector pin mechanism 3 are pushed upwards by the pushing device 4, the two ejector pins 31 are ejected out of the bottom of the female die 140, the plastic product is ejected out of the female die 140 by the ejector pins 31, and demolding of the plastic product is facilitated.

Firstly, a cylinder 310 is sleeved at the bottom end of a thimble 31 rod body, a return spring 30X is sleeved on the thimble 31 rod body positioned at the lower end of the cylinder 310, and the top of the thimble 31 rod body sequentially penetrates through the top of the baffle 13 and the bottom of the female die 140; when the protruding column 30 and the thimble 31 are pushed upward, the top of the protruding column 30 abuts against the bottom of the return spring 30X and the return spring 30X is compressed upward.

Secondly, two drum 310 circumference outer walls are fixed with 13 joint of baffle, and reset spring 30X top and drum 310 bottom welded fastening are convenient for carry on spacingly to reset spring 30X, and when reset spring 30X after the compression extended downwards, its bottom formed decurrent thrust, promoted projection 30 downstream, have realized resetting thimble 31.

Thirdly, the pushing device 4 includes an air cylinder 40 disposed at the lower end of the lower bottom plate 11, the top of the air cylinder 40 is connected with a push rod 41, a fixing sleeve 410 is disposed on the rod body of the push rod 41, and the top of the fixing sleeve 410 is fixed to the bottom of the lower bottom plate 11, wherein the structure and the working principle of the air cylinder 40 are as known to those skilled in the art, and are not described herein again, the air cylinder 40 is utilized to drive the push rod 41 to move up and down, and when the push rod 41 moves, the fixing sleeve 41 is utilized to play a guiding role.

Finally, the top of the push rod 41 penetrates through the top of the lower base plate 11 and is slidably connected with the top of the lower base plate, a circular push plate 42 is mounted at the top of the push rod 41, the top of the circular push plate 42 is tightly abutted to the bottom ends of the two convex columns 30, the push rod 41 moves to drive the circular push plate 42 to move up and down, and the convex columns 30 and the ejector pins 31 are upwards pushed by the circular push plate 42.

The utility model discloses a take plastic product forming die of thimble mechanism when using, after the plastic product is at die cavity 140 and terrace die 150 die cavity shaping, utilize the transfer line 21 of transmission 2 bottom to pull up upper plate 16, make terrace die 150 in the terrace die board 15 of upper plate 16 lower extreme separate with the die 140 below terrace die 150, cylinder 40 drives push rod 41 and moves upwards simultaneously, reuse the circular push pedal 42 that the top of push rod 41 set up to promote two projections 30 upwards, utilize the thimble 31 that two projections 30 set up to push out the plastic product from die cavity 140 at last, can make the quick drawing of patterns of plastic product; after the plastic product is demoulded, the cylinder 40 drives the push rod 41 to move downwards, the convex column 30 is pushed downwards by the return spring 30X, so that the convex column 30 drives the thimble 31 to move downwards, and the thimble 31 is convenient to return.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. The technical personnel of this trade should understand, the utility model does not receive the restriction of above-mentioned utility model, and what describe in above-mentioned utility model and the description only does the preferred example of the utility model to need not restrict the utility model, under the prerequisite that does not deviate from the spirit and scope of the utility model, the utility model discloses still can have various changes and improvement, these changes and improvement all fall into the scope of the utility model that claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a take plastic product forming die of thimble mechanism, includes mould body (1), its characterized in that: the die is characterized in that the die body (1) is sequentially provided with a foot pad (10), a lower bottom plate (11) and an upper bottom plate (16) from bottom to top, a transmission device (2) is arranged at the top of the die body (1), a convex die plate (15) is installed at the bottom of the upper bottom plate (16), a convex die (150) is embedded in the convex die plate (15), two symmetrically arranged cushion pads (12) are arranged at the top of the lower bottom plate (11), and a baffle (13) is horizontally arranged at the top ends of the two cushion pads (12); the top of the baffle (13) and the bottom of the lower bottom plate (11) are sequentially provided with a thimble mechanism (3) and a pushing device (4) from top to bottom; the top of the baffle (13) is provided with a concave template (14), a concave die (140) is embedded in the concave template (14), four guide pillars (10X) are arranged at the top of the lower base plate (11) close to four corners, and the guide pillars (10X) penetrate through the top of the upper base plate (16) and are fixed with the bottom of the cushion plate of the transmission device (2).

2. The plastic product molding die with an ejector pin mechanism as recited in claim 1, wherein: power portion (20) are installed through the backing plate at transmission (2) top, power portion (20) lower extreme is connected with two transfer lines (21) that set up side by side, transfer line (21) bottom run through the backing plate bottom with upper plate (16) top thread tightening.

3. The plastic product molding die with an ejector pin mechanism as recited in claim 1, wherein: the ejector pin mechanism (3) comprises two stepped convex columns (30) arranged at the top of the pushing device (4) and ejector pins (31) inserted at the tops of the two convex columns (30).

4. The plastic product molding die with an ejector pin mechanism as recited in claim 1, wherein: the bottom end of the rod body of the thimble (31) is sleeved with a cylinder (310), the rod body of the thimble (31) at the lower end of the cylinder (310) is sleeved with a reset spring (30X), and the top of the rod body of the thimble (31) sequentially penetrates through the top of the baffle (13) and the bottom of the concave die (140).

5. The plastic product molding die with an ejector pin mechanism according to claim 4, characterized in that: the outer wall of the circumference of the cylinder (310) is fixedly clamped with the baffle (13), and the top of the reset spring (30X) is fixedly welded to the bottom of the cylinder (310).

6. The plastic product molding die with an ejector pin mechanism according to claim 3, characterized in that: thrust unit (4) are including setting up cylinder (40) of lower plate (11) lower extreme, cylinder (40) top is connected with push rod (41), be equipped with fixed cover (410) on the push rod (41) body of rod, fixed cover (410) top with lower plate (11) bottom is fixed.

7. The plastic product molding die with an ejector pin mechanism of claim 6, wherein: the top of the push rod (41) penetrates through the top of the lower bottom plate (11) and is in sliding connection with the lower bottom plate, a circular push plate (42) is installed at the top of the push rod (41), and the top of the circular push plate (42) is tightly abutted to the bottom ends of the two convex columns (30).