CN111267311A

CN111267311A - Ejection device for plastic product injection mold production

Info

Publication number: CN111267311A
Application number: CN202010165714.3A
Authority: CN
Inventors: 金晓
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-06-12

Abstract

The invention discloses an ejection device for plastic product injection mold production, relates to the technical field of machining, and solves the problems that when an existing sliding sleeve is ejected, a metal rod needs to be selected according to the aperture, and meanwhile, as the sliding sleeve is generally in interference fit, the ejection is difficult, large labor force needs to be consumed, and the operation is very inconvenient; the top of the main body is axially connected with a group of operating hand wheels; three groups of ejector rods are arranged on the lower part of the main body in a circumferential array and are connected in a sliding manner; a group of driving turntables are axially connected inside the main body; a group of intermediate gears are axially connected inside the main body; the outer side of each pair of swing connecting rods is connected with a group of fixed blocks through hinges; the lower part of the tightening nut is connected with three groups of tightening connecting rods in a circumferential array arrangement hinge mode. The device can be used for fixing the sliding sleeves with different sizes and apertures, has strong adaptability, saves more labor during use, is convenient to pull out the sliding sleeves, and is simple to use and convenient to operate.

Description

Ejection device for plastic product injection mold production

Technical Field

The invention relates to the technical field of machining, in particular to an ejection device for plastic product injection mold production.

Background

In the production of plastic product injection mold often need set up the sliding sleeve in many downtheholess, conveniently lead to the slide bar, need follow downthehole dismantlement with the sliding sleeve when needs maintain and change the sliding sleeve in process of production, current sliding sleeve is ejecting through metal post or metal bar generally.

Based on the above, when the existing sliding sleeve is ejected, a metal rod needs to be selected according to the aperture, and meanwhile, as the sliding sleeve is generally in interference fit, the ejection is difficult, large labor force is consumed, and the operation is very inconvenient; therefore, the existing requirements are not met, and the ejection device for producing the plastic product injection mold is provided for the requirements.

Disclosure of Invention

The invention aims to provide an ejection device for plastic product injection mold production, which solves the problems that the existing sliding sleeve in the background art needs to select a metal rod according to the aperture when ejecting, and the sliding sleeve is in interference fit generally, so that the ejection is difficult, the large labor force is consumed, and the operation is very inconvenient.

In order to achieve the purpose, the invention provides the following technical scheme: an ejection device for producing an injection mold of a plastic product comprises a main body; the top of the main body is axially connected with a group of operating hand wheels; three groups of ejector rods are arranged on the lower part of the main body in a circumferential array and are connected in a sliding manner; a group of driving turntables are axially connected inside the main body; a group of intermediate gears are axially connected inside the main body; the lower part of the main body is in threaded connection with two groups of tightening nuts; the lower part of the circular array is hinged with four pairs of swing connecting rods; the outer side of each pair of swing connecting rods is connected with a group of fixed blocks through hinges; the lower part of the tightening nut is connected with three groups of tightening connecting rods in a circumferential array arrangement hinge mode.

Preferably, the operating hand wheel further comprises a driving gear, the bottom of the operating hand wheel is coaxially and fixedly connected with a group of driving gears, and the driving gears and the intermediate gear are meshed to form a gear transmission mechanism together.

Preferably, the driving turntable further comprises a lifting internal gear, the upper end face of the driving turntable is provided with a group of lifting internal gears, and the lifting internal gears and the intermediate gear are meshed to form an internal gear transmission mechanism together.

Preferably, the driving turntable further comprises a lifting outer gear, a group of lifting outer gears is arranged on the outer side of the driving turntable, the ejector rod further comprises a lifting nut and a lifting driven gear, the group of lifting nuts are connected to the ejector rod in a threaded transmission mode, a group of lifting driven gears is arranged on the outer side of the lifting nut, and the lifting outer gears and the lifting driven gears are meshed to form a gear transmission mechanism.

Preferably, the ejector pin is still including the guide way, and two sets of guide ways have been seted up to the side of ejector pin, and the main part is still including the guide block, all is provided with two sets of guide blocks on the upper and lower terminal surface hole of main part, guide block and guide way sliding fit.

Preferably, the tightening nut further comprises a mounting seat, the lower portion of the tightening nut is axially connected with a group of mounting seats, the lower portion of the tightening connecting rod is hinged to the middle of a group of swing connecting rods above the tightening connecting rod, and a crank sliding block mechanism is formed between the tightening nut, the tightening connecting rod, the swing connecting rod and the main body.

Preferably, the two groups of swing connecting rods on the same side are installed in parallel, the fixed block is installed in parallel with the main body, and a double-rocker mechanism is formed among the swing connecting rods, the fixed block and the main body.

Preferably, the fixed block also comprises a clamping table, and a group of clamping tables are arranged above and below the fixed block.

Compared with the prior art, the invention has the beneficial effects that:

the device realizes the swing of the fixed block and the clamping of the sliding sleeve by adopting the transmission mechanisms such as the thread transmission mechanism, the crank sliding block mechanism, the double-rocker mechanism and the like, has good clamping effect, can be suitable for the fixation of the sliding sleeves with different sizes and apertures, and has strong adaptability; the device realizes the sliding of the ejector rod by adopting the transmission modes such as the gear transmission mechanism, the internal gear transmission mechanism, the thread transmission and the like, pulls out the sliding sleeve from the hole, simultaneously realizes a larger transmission ratio, is more labor-saving, is convenient to pull out the sliding sleeve, and is simple to use and convenient to operate.

The device can be used for fixing the sliding sleeves with different sizes and apertures, has strong adaptability, saves more labor during use, is convenient to pull out the sliding sleeves, and is simple to use and convenient to operate.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic view of the internal axial side structure of the present invention;

FIG. 3 is a schematic side view of the mandrel of the present invention;

FIG. 4 is a schematic side view of the fixing block mounting shaft of the present invention;

FIG. 5 is a schematic view of the fixed block drive shaft side of the present invention;

FIG. 6 is a schematic side view of the crank block mechanism of the present invention;

FIG. 7 is a schematic side view of the dual rocker mechanism of the present invention;

FIG. 8 is a schematic axial view of the main body of the present invention;

in the figure: 1. a main body; 101. a guide block; 2. operating a hand wheel; 201. a drive gear; 3. a top rod; 301. a guide groove; 302. a lifting nut; 303. a lifting driven gear; 4. driving the turntable; 401. a lifting inner gear; 402. an elevating outer gear; 5. an intermediate gear; 6. tightening the nut; 601. a mounting seat; 7. tightly supporting the connecting rod; 8. a swing link; 9. a fixed block; 901. and (7) clamping the table.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.

Referring to fig. 1 to 8, an embodiment of the present invention includes: an ejection device for producing an injection mold of a plastic product comprises a main body 1; the top of the main body 1 is axially connected with a group of operating handwheels 2; the operating hand wheel 2 also comprises a driving gear 201, the bottom of the operating hand wheel 2 is coaxially and fixedly connected with a group of driving gears 201, the driving gears 201 and the intermediate gear 5 are meshed to form a gear transmission mechanism together, and when the operating hand wheel 2 is shaken in use, the operating hand wheel 2 drives the intermediate gear 5 to rotate through the gear transmission mechanism; the lower part of the main body 1 is arranged in a circumferential array and is connected with three groups of ejector rods 3 in a sliding manner; the ejector rod 3 further comprises a guide groove 301, two groups of guide grooves 301 are formed in the side face of the ejector rod 3, the main body 1 further comprises a guide block 101, two groups of guide blocks 101 are arranged on holes in the upper end face and the lower end face of the main body 1, the guide blocks 101 are in sliding fit with the guide grooves 301, and the ejector rod 3 is guided through the guide grooves 301 in use; a group of driving turntables 4 are axially connected inside the main body 1; the driving turntable 4 further comprises a lifting internal gear 401, the upper end face of the driving turntable 4 is provided with a group of lifting internal gears 401, the lifting internal gears 401 and the intermediate gear 5 are meshed to form an internal gear transmission mechanism together, and when the intermediate gear 5 rotates in use, the intermediate gear 5 drives the driving turntable 4 to rotate through the internal gear transmission mechanism; the driving turntable 4 further comprises an external lifting gear 402, a group of external lifting gears 402 is arranged on the outer side of the driving turntable 4, the ejector rod 3 further comprises a lifting nut 302 and a lifting driven gear 303, the group of lifting nuts 302 are connected to the ejector rod 3 in a threaded transmission manner, the group of lifting driven gears 303 are arranged on the outer side of the lifting nut 302, the external lifting gears 402 and the lifting driven gear 303 are meshed to form a gear transmission mechanism together, when the driving turntable 4 rotates in use, the driving turntable 4 drives the lifting nuts 302 to rotate through the gear transmission mechanism, and the lifting nut 302 drives the ejector rod 3 to slide up and down through the threaded transmission; a group of intermediate gears 5 are axially connected inside the main body 1; the lower part of the main body 1 is in threaded connection with two groups of tightening nuts 6; the tightening nut 6 further comprises an installation seat 601, the lower portion of the tightening nut 6 is axially connected with a group of installation seats 601, the lower portion of the tightening connecting rod 7 is hinged with the middle portion of the upper group of swing connecting rods 8, a crank block mechanism is formed by the tightening nut 6, the tightening connecting rod 7, the swing connecting rods 8 and the main body 1 together, when the tightening nut 6 rotates in use, the tightening nut 6 slides up and down through thread transmission, and the tightening nut 6 drives the lower portion of the upper group of swing connecting rods 8 to swing through the crank block mechanism to be arranged in a circumferential array mode and is connected with four pairs of swing connecting rods 8 through hinges; two groups of swing connecting rods 8 on the same side are installed in parallel, a fixed block 9 is installed in parallel with the main body 1, the swing connecting rods 8, the fixed block 9 and the main body 1 form a double-rocker mechanism together, and when the upper group of swing connecting rods 8 swings in use, the sliding sleeve is clamped; the outer side of each pair of swing connecting rods 8 is connected with a group of fixed blocks 9 through hinges; the fixed block 9 further comprises clamping tables 901, a group of clamping tables 901 are arranged above and below the fixed block 9, and the sliding sleeve is clamped through the clamping tables 901 in use; the lower part of the tightening nut 6 is connected with three groups of tightening connecting rods 7 in a circumferential array arrangement hinge.

The working principle is as follows: when the device is used, the fixing block 9 is placed in the sliding sleeve, the tightening nut 6 is rotated, the tightening nut 6 slides up and down through thread transmission, the tightening nut 6 drives the upper group of swing connecting rods 8 to swing through the crank-slider mechanism, the swing connecting rods 8 drive the fixing block 9 to swing through the double-rocker mechanism, the fixing block 9 is kept in a vertical state all the time, and the sliding sleeve is clamped through the clamping table 901; rotatory operation hand wheel 2, operation hand wheel 2 drives intermediate gear 5 through gear drive mechanism and rotates, and intermediate gear 5 drives drive carousel 4 through internal gear drive mechanism and rotates, and drive carousel 4 drives lifting nut 302 through gear drive mechanism and rotates, and lifting nut 302 drives ejector pin 3 through the screw thread transmission and slides down, and ejector pin 3 up jack-up main part 1 extracts the sliding sleeve from downthehole.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a liftout attachment is used in plastic products injection mold production which characterized in that: comprises a main body (1); the top of the main body (1) is axially connected with a group of operating hand wheels (2); the lower part of the main body (1) is arranged in a circumferential array and is connected with three groups of ejector rods (3) in a sliding manner; a group of driving turntables (4) are axially connected inside the main body (1); a group of intermediate gears (5) are axially connected inside the main body (1); the lower part of the main body (1) is in threaded connection with two groups of tightening nuts (6); the lower part of the circular array is hinged with four pairs of swinging connecting rods (8); the outer side of each pair of swing connecting rods (8) is connected with a group of fixed blocks (9) through hinges; the lower part of the tightening nut (6) is connected with three groups of tightening connecting rods (7) in a circumferential array arrangement hinge mode.

2. The ejection device for plastic product injection mold production according to claim 1, wherein: the operation hand wheel (2) is characterized by further comprising a driving gear (201), the bottom of the operation hand wheel (2) is coaxially and fixedly connected with a group of driving gears (201), and the driving gears (201) and the intermediate gear (5) are meshed to form a gear transmission mechanism together.

3. The ejection device for plastic product injection mold production according to claim 1, wherein: the driving turntable (4) further comprises a lifting internal gear (401), the upper end face of the driving turntable (4) is provided with a group of lifting internal gears (401), and the lifting internal gears (401) are meshed with the intermediate gear (5) to form an internal gear transmission mechanism together.

4. The ejection device for plastic product injection mold production according to claim 1, wherein: the driving turntable (4) further comprises a lifting outer gear (402), a group of lifting outer gears (402) is arranged on the outer side of the driving turntable (4), the ejector rod (3) further comprises a lifting nut (302) and a lifting driven gear (303), the group of lifting nuts (302) are connected to the ejector rod (3) in a threaded transmission mode, a group of lifting driven gears (303) are arranged on the outer side of the lifting nuts (302), and the lifting outer gears (402) and the lifting driven gears (303) are meshed to form a gear transmission mechanism together.

5. The ejection device for plastic product injection mold production according to claim 1, wherein: the ejector rod (3) further comprises a guide groove (301), two groups of guide grooves (301) are formed in the side face of the ejector rod (3), the main body (1) further comprises a guide block (101), two groups of guide blocks (101) are arranged on the upper end face hole and the lower end face hole of the main body (1), and the guide blocks (101) are in sliding fit with the guide grooves (301).

6. The ejection device for plastic product injection mold production according to claim 1, wherein: the tightening nut (6) further comprises a mounting seat (601), the lower portion of the tightening nut (6) is axially connected with a group of mounting seats (601), the lower portion of the tightening connecting rod (7) is connected with the middle portion of a group of swing connecting rods (8) above the tightening connecting rod through hinges, and a crank-slider mechanism is formed between the tightening nut (6), the tightening connecting rod (7), the swing connecting rods (8) and the main body (1) together.

7. The ejection device for plastic product injection mold production according to claim 1, wherein: two groups of swing connecting rods (8) on the same side are installed in parallel, the fixed block (9) is installed in parallel with the main body (1), and a double-rocker mechanism is formed among the swing connecting rods (8), the fixed block (9) and the main body (1).

8. The ejection device for plastic product injection mold production according to claim 1, wherein: the fixing block (9) further comprises clamping tables (901), and a group of clamping tables (901) are arranged above and below the fixing block (9).