CN212045545U

CN212045545U - Quick opening and closing device for forming die of plastic forming machine

Info

Publication number: CN212045545U
Application number: CN202020549924.8U
Authority: CN
Inventors: 叶建克
Original assignee: Zhejiang Jian Xin Materials Co ltd
Current assignee: Zhejiang Jian Xin Materials Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-12-01
Anticipated expiration: 2030-04-14

Abstract

The utility model relates to a quick opening and closing device of a forming die of a plastic forming machine, which comprises a frame, wherein a rotating shaft is arranged on the frame, a first eccentric disc and a second eccentric disc are arranged on the rotating shaft, the outer side walls of the first eccentric disc and the second eccentric disc are respectively sleeved with a rotatable first supporting arm and a rotatable second supporting arm, the first supporting arm and the second supporting arm are respectively and rotatably connected with a first supporting seat and a second supporting seat, the first supporting seat is provided with a first guide pillar and a second guide pillar, the upper ends of the first guide pillar and the second guide pillar are fixedly connected with a first die, the second supporting seat is provided with a third guide pillar and a fourth guide pillar, the first die is provided with a first sliding hole, the upper ends of the third guide pillar and the fourth guide pillar penetrate through the first sliding hole and are fixedly connected with the second die, the rotating shaft is connected with a speed reducer, be connected with the motor on the speed reducer, the utility model discloses it is fast to open and shut, and stability is good.

Description

Quick opening and closing device for forming die of plastic forming machine

Technical Field

The utility model relates to a plastic molding machine, especially a plastic molding machine forming die's device that opens and shuts fast.

Background

The plastic forming machine is a device for producing various plastic products and is widely used. When a bottle cap or other products with high cooling speed are produced, the product is ejected out from die assembly to die opening generally only in a few seconds, but the existing plastic molding machine forming die opening and closing device generally pushes two dies to move relatively through a cylinder, but the speed is not high and stable enough due to the influence of the cylinder and an air source, and the production efficiency and the product quality of equipment are limited.

SUMMERY OF THE UTILITY MODEL

The utility model provides a device that opens and shuts fast of plastic molding machine forming die, it is fast that it opens and shuts, and stability is good, has improved plastic molding machine's production efficiency and product quality, has solved the above-mentioned problem that exists among the prior art in the use.

The technical scheme of the utility model is realized like this:

a quick opening and closing device of a forming die of a plastic forming machine comprises a rack and the forming die, wherein the forming die comprises a first die and a second die, a rotating shaft is arranged on the rack, a first eccentric disc and a second eccentric disc are arranged on the rotating shaft, the central lines of the first eccentric disc and the second eccentric disc are symmetrically arranged relative to the rotating shaft, a rotatable first supporting arm is sleeved on the outer side wall of the first eccentric disc, a rotatable second supporting arm is sleeved on the outer side wall of the second eccentric disc, the first supporting arm is rotatably connected with a first supporting seat, the second supporting seat is rotatably connected with a second supporting seat, a first guide pillar and a second guide pillar which are equal in length are arranged on the first supporting seat, the upper ends of the first guide pillar and the second guide pillar are fixedly connected with the first die, and a third guide pillar and a fourth guide pillar which are equal in length are arranged on the second supporting seat, the first die is provided with a first sliding hole used for being matched with the third guide pillar and the fourth guide pillar, the upper ends of the third guide pillar and the fourth guide pillar penetrate through the first sliding hole and are fixedly connected with the second die, the rotating shaft is connected with a speed reducer, and the speed reducer is connected with a motor.

By adopting the technical scheme, when the motor controls the rotating shaft to rotate through the speed reducer, the rotating shaft can drive the first eccentric disc and the second eccentric disc to rotate, the first eccentric disc drives the first guide post and the second guide post to move up and down through the first supporting arm, the second eccentric disc drives the third guide post and the fourth guide post to move up and down through the second supporting arm, the moving directions of the first guide post and the second guide post and the moving directions of the third guide post and the fourth guide post are always opposite, namely when the first guide post and the second guide post drive the first mold to move upwards, the third guide post and the fourth guide post drive the second mold to move downwards so as to complete mold closing, and when the first mold moves downwards, the second mold moves upwards so as to complete mold opening, and the cycle is always repeated, compared with the pushing of an air cylinder, the opening and closing speed of the forming mold is obviously improved, and the stability is good.

The utility model discloses further set up to: be equipped with central disc in the axis of rotation, central disc sets up between first eccentric disc and the eccentric disc of second, be equipped with first guide holder and second guide holder on the both sides of central disc respectively, first guide holder is towards first eccentric disc, the second guide holder is towards the eccentric disc of second, be equipped with first movable rail on the first guide holder, be equipped with a plurality of first sliders that are used for with first movable rail matched with on the first eccentric disc, be equipped with second movable rail on the second guide holder, be equipped with a plurality of second sliders that are used for with second movable rail matched with on the eccentric disc of second.

Through adopting above-mentioned technical scheme, when first eccentric disc is in the pivoted time, first slider on the first eccentric disc just slides in first movable track, and first slider can support first eccentric disc, and the second slider on the eccentric disc of reason second also supports the eccentric disc of second in second movable track, and this structure has strengthened the utility model discloses a stability and firm degree.

The utility model discloses further set up to: guide sleeves are arranged on the first guide column, the second guide column, the third guide column and the fourth guide column, and the guide sleeves are fixedly connected to the rack.

Through adopting above-mentioned technical scheme, the guide pin bushing can strengthen first guide pillar, second guide pillar, third guide pillar and fourth guide pillar stability when reciprocating.

The utility model discloses further set up to: the first guide pillar and the second guide pillar are both provided with guide pillar extending sections extending upwards, the guide pillar extending sections penetrate through the first die, the second die is provided with second sliding holes used for being matched with the guide pillar extending sections, and the upper ends of the guide pillar extending sections penetrate through the second sliding holes upwards.

Through adopting above-mentioned technical scheme, when the second mould was reciprocated by third guide pillar and fourth guide pillar drive, the second mould passed through the second slip hole and is restricted to move on the guide pillar extension, and this structure can strengthen first mould and second mould matched with accuracy.

The utility model discloses further set up to: the frame is provided with a first guide side wall and a second guide side wall, and the first mold and the second mold are matched and arranged between the first guide side wall and the second guide side wall.

Through adopting above-mentioned technical scheme, make first mould and second mould can only reciprocate between first direction lateral wall and second direction lateral wall, can further strengthen the utility model discloses a stability.

The utility model discloses further set up to: the first guide side wall and the second guide side wall are fixedly connected with a fixing plate above, the fixing plate is provided with an ejector rod, and the ejector rod penetrates through the second die.

Through adopting above-mentioned technical scheme, when first mould downwardly movement, second mould rebound, when carrying out the die sinking, the ejecting rod can be ejecting with fashioned product on the second mould.

The utility model discloses further set up to: the rotating shaft, the first eccentric disc and the second eccentric disc are of an integrally formed structure.

Through adopting above-mentioned technical scheme, can strengthen the firm degree that axis of rotation, first eccentric disc and second eccentric disc structure set up.

To sum up, the beneficial effects of the utility model reside in that:

the utility model discloses a motor rotates through speed reducer control axis of rotation, and the axis of rotation drives first eccentric disc again and rotates with the eccentric disc of second to make first mould and second mould accomplish compound die and die sinking, this structure speed is high, and stability is good, has improved plastic forming machine's production efficiency and product quality.

The description of the figures in the drawings,

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall structure of FIG. 1 from another perspective;

FIG. 3 is a front view of the mold opening of the present invention;

fig. 4 is a front view of the present invention at the time of mold clamping.

In the figure: 1. a frame; 2. a first mold; 3. a second mold; 4. a rotating shaft; 5. a first eccentric disc; 6. a second eccentric disc; 7. a first support arm; 8. a second support arm; 9. a first support base; 10. a second support seat; 11. a first guide post; 12. a second guide post; 13. a third guide post; 14. a fourth guide post; 15. a first slide hole; 16. a speed reducer; 17. a motor; 18. a central disc; 19. a first guide seat; 20. a second guide seat; 21. a first movable rail; 22. a first slider; 23. a second movable rail; 24. a second slider; 25. a guide sleeve; 26. a guide post extension section; 27. a second slide hole; 28. a first guide sidewall; 29. a second guide sidewall; 30. a fixing plate; 31. and ejecting the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1-4 of the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

As shown in fig. 1 to 4, the utility model discloses a fast opening and closing device for a forming die of a plastic forming machine, which comprises a frame 1 and a forming die, wherein the forming die comprises a first die 2 and a second die 3, a rotating shaft 4 is arranged on the frame 1, a first eccentric disc 5 and a second eccentric disc 6 are arranged on the rotating shaft 4, the central lines of the first eccentric disc 5 and the second eccentric disc 6 are symmetrically arranged relative to the rotating shaft 4, a rotatable first supporting arm 7 is sleeved on the outer side wall of the first eccentric disc 5, a rotatable second supporting arm 8 is sleeved on the outer side wall of the second eccentric disc 6, a first supporting seat 9 is rotatably connected on the first supporting arm 7, a second supporting seat 10 is rotatably connected on the second supporting arm 8, a first guide pillar 11 and a second guide pillar 12 which are equal in length are arranged on the first supporting seat 9, the upper ends of the first guide post 11 and the second guide post 12 are fixedly connected with the first die 2, the second support seat 10 is provided with a third guide post 13 and a fourth guide post 14 which are equal in length, the first die 2 is provided with a first sliding hole 15 which is used for being matched with the third guide post 13 and the fourth guide post 14, the upper ends of the third guide post 13 and the fourth guide post 14 penetrate through the first sliding hole 15 and are fixedly connected with the second die 3, the rotating shaft 4 is connected with a speed reducer 16, and the speed reducer 16 is connected with a motor 17.

The utility model discloses a theory of operation: when the motor 17 controls the rotating shaft 4 to rotate through the speed reducer 16, the rotating shaft 4 drives the first eccentric disc 5 and the second eccentric disc 6 to rotate, the first eccentric disc 5 drives the first guide post 11 and the second guide post 12 to move up and down through the first supporting arm 7, the second eccentric disc 6 drives the third guide post 13 and the fourth guide post 14 to move up and down through the second supporting arm 8, the moving directions of the first guide post 11 and the second guide post 12 and the moving directions of the third guide post 13 and the fourth guide post 14 are always opposite, that is, when the first guide post 11 and the second guide post 12 drive the first mold 2 to move up, the third guide post 13 and the fourth guide post 14 drive the second mold 3 to move down, the first mold 2 and the second mold 3 are closed together to complete mold closing, and when the first mold 2 moves down, the second mold 3 moves up, therefore, the mould opening is completed, the process is circulated all the time, the opening and closing speed is high, and the stability is good.

In order to enhance the stability and firmness of the present invention, a central disc 18 is disposed on the rotating shaft 4, the central disc 18 is disposed between the first eccentric disc 5 and the second eccentric disc 6, a first guide seat 19 and a second guide seat 20 are respectively disposed on two sides of the central disc 18, the first guide seat 19 faces the first eccentric disc 5, the second guide seat 20 faces the second eccentric disc 6, a first movable rail 21 is disposed on the first guide seat 19, a plurality of first sliders 22 for matching with the first movable rail 21 are disposed on the first eccentric disc 5, a second movable rail 23 is disposed on the second guide seat 20, a plurality of second sliders 24 for matching with the second movable rail 23 are disposed on the second eccentric disc 6, when the first eccentric disc 5 rotates, the first sliders 22 slide in the first movable rail 21, the first slider 22 can be used to support the first eccentric disk 5, and the second slider 24 on the second eccentric disk 6 can also support the second eccentric disk 6 in the second movable rail 23, thereby enhancing the stability and firmness of the structure.

In order to further enhance the stability of the present invention, guide sleeves 25 are disposed on the first guide post 11, the second guide post 12, the third guide post 13 and the fourth guide post 14, the guide sleeves 25 are fixedly connected to the frame 1, and the guide sleeves 25 can enhance the stability of the first guide post 11, the second guide post 12, the third guide post 13 and the fourth guide post 14 when moving up and down.

In order to improve the accuracy of the first mold 2 and the second mold 3 during mold closing, the first guide post 11 and the second guide post 12 are both provided with an upward extending guide post extension section 26, the guide post extension section 26 penetrates through the first mold 2, the second mold 3 is provided with a second sliding hole 27 for matching with the guide post extension section 26, the upper end of the guide post extension section 26 penetrates through the second sliding hole 27 upwards, and when the second mold 3 is driven by the third guide post 13 and the fourth guide post 14 to move up and down, the second sliding hole 27 on the second mold 3 is limited to move on the guide post extension section 26, so that the accuracy of the first mold 2 matching with the second mold 3 is improved.

In order to further strengthen the stability of the utility model, be equipped with first direction lateral wall 28 and second direction lateral wall 29 on the frame 1, first mould 2 and second mould 3 all cooperate to set up between first direction lateral wall 28 and second direction lateral wall 29, and this structure makes first mould 2 and second mould 3 only can reciprocate between first direction lateral wall 28 and second direction lateral wall 29, can further strengthen the utility model discloses a stability.

In order to enable the first mold 2 and the second mold 3 to automatically eject the formed product when the molds are opened, a fixing plate 30 is fixedly connected above the first guide side wall 28 and the second guide side wall 29, an ejector rod 31 is arranged on the fixing plate 30, the ejector rod 31 penetrates through the second mold 3, when the first mold 2 moves downwards, the second mold 3 moves upwards, and when the molds are opened, the ejector rod 31 can eject the formed product on the second mold 3.

The utility model discloses in, axis of rotation 4, first eccentric disc 5 and the eccentric disc 6 of second of a body structure, firm degree is high, durable.

The utility model that should point out simultaneously indicates the terminology, like: the directional or positional relationships indicated as "front", "rear", "vertical", "horizontal", etc. are based on the directional or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but are not intended to 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 scope of the invention.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a quick device that opens and shuts of plastic molding machine forming die, includes frame (1) and forming die, forming die is including first mould (2) and second mould (3), its characterized in that: the mold is characterized in that a rotating shaft (4) is arranged on the rack (1), a first eccentric disc (5) and a second eccentric disc (6) are arranged on the rotating shaft (4), the central lines of the first eccentric disc (5) and the second eccentric disc (6) are symmetrically arranged relative to the rotating shaft (4), a rotatable first supporting arm (7) is sleeved on the outer side wall of the first eccentric disc (5), a rotatable second supporting arm (8) is sleeved on the outer side wall of the second eccentric disc (6), a first supporting seat (9) is rotatably connected to the first supporting arm (7), a second supporting seat (10) is rotatably connected to the second supporting arm (8), a first guide pillar (11) and a second guide pillar (12) which are equal in length are arranged on the first supporting seat (9), and the upper end of the first guide pillar (11) and the upper end of the second guide pillar (12) are fixedly connected with the first mold (2), the die is characterized in that a third guide pillar (13) and a fourth guide pillar (14) which are equal in length are arranged on the second supporting seat (10), a first sliding hole (15) which is matched with the third guide pillar (13) and the fourth guide pillar (14) is formed in the first die (2), the upper ends of the third guide pillar (13) and the fourth guide pillar (14) penetrate through the first sliding hole (15) and are fixedly connected with the second die (3), a speed reducer (16) is connected onto the rotating shaft (4), and a motor (17) is connected onto the speed reducer (16).

2. The quick opening and closing device for the forming die of the plastic forming machine as claimed in claim 1, wherein: a central disc (18) is arranged on the rotating shaft (4), the central disc (18) is arranged between the first eccentric disc (5) and the second eccentric disc (6), a first guide seat (19) and a second guide seat (20) are respectively arranged on two sides of the central disc (18), the first guide seat (19) faces the first eccentric disc (5), the second guide seat (20) faces the second eccentric disc (6), a first movable track (21) is arranged on the first guide seat (19), a plurality of first sliding blocks (22) matched with the first movable track (21) are arranged on the first eccentric disc (5), and a second movable track (23) is arranged on the second guide seat (20), and a plurality of second sliding blocks (24) matched with the second movable track (23) are arranged on the second eccentric disc (6).

3. The quick opening and closing device for the forming die of the plastic forming machine as claimed in claim 1, wherein: guide sleeves (25) are arranged on the first guide post (11), the second guide post (12), the third guide post (13) and the fourth guide post (14), and the guide sleeves (25) are fixedly connected to the rack (1).

4. The quick opening and closing device for the forming die of the plastic forming machine as claimed in claim 1, wherein: the first guide post (11) and the second guide post (12) are both provided with guide post extending sections (26) extending upwards, the guide post extending sections (26) penetrate through the first die (2), the second die (3) is provided with second sliding holes (27) matched with the guide post extending sections (26), and the upper ends of the guide post extending sections (26) penetrate through the second sliding holes (27) upwards.

5. The device for rapidly opening and closing the forming mold of the plastic forming machine as claimed in claim 1, wherein: be equipped with first direction lateral wall (28) and second direction lateral wall (29) on frame (1), first mould (2) and second mould (3) all cooperate the setting between first direction lateral wall (28) and second direction lateral wall (29).

6. The device for rapidly opening and closing the forming mold of the plastic forming machine as claimed in claim 1, wherein: the upper portions of the first guide side wall (28) and the second guide side wall (29) are fixedly connected with a fixing plate (30), an ejector rod (31) is arranged on the fixing plate (30), and the ejector rod (31) penetrates through the second die (3).

7. The device for rapidly opening and closing the forming mold of the plastic forming machine as claimed in claim 1, wherein: the rotating shaft (4), the first eccentric disc (5) and the second eccentric disc (6) are of an integrally formed structure.