CN214448004U

CN214448004U - Double-color mold structure

Info

Publication number: CN214448004U
Application number: CN202023318795.0U
Authority: CN
Inventors: 彭杰勇; 吴平国; 杨果; 熊仁勇
Original assignee: Chongqing Kangshi Deyuan Technology Industrial Co ltd
Current assignee: Chongqing Kangshi Deyuan Technology Industrial Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-22
Anticipated expiration: 2030-12-31

Abstract

A double-color mold structure comprises a fixed mold side and a movable mold side; the movable mold side comprises a movable mold core fixing plate and a forming insert fixing plate, a movable mold core A and a movable mold core B are fixed in the movable mold core fixing plate, and a forming insert A and a forming insert B are fixed in the forming insert fixing plate; the movable mold side also comprises a rotary ejection device which passes through the forming insert fixing plate and is fixedly connected with the movable mold core fixing plate. The utility model discloses have following advantage: the structure can be simplified, the cost is reduced, the working process can be simplified, the rotating precision is improved, and therefore the problems in the production process are reduced.

Description

Double-color mold structure

Technical Field

The utility model relates to the field of mechanical equipment, concretely relates to double-colored mode structure.

Background

The double-color injection molding refers to a molding process of injecting two different materials into a double-color mold, so that an injection molded part is formed by the two materials. In order to improve the performance of products such as aesthetic property, assembly and the like, the two materials are made of materials with different colors and materials with different hardness.

With the increasing requirements of people on the appearance and the function of plastic products, the demand of the double-color mold is more and more large. The two-color mold generally includes two pairs of molds, a fixed mold side and a movable mold side, the fixed mold side is mounted on a fixed mold fixing plate of the two-color mold injection molding machine, and the movable mold side is mounted on a movable mold rotating plate. And after the first material is injected, opening the mold, namely separating the fixed mold side and the movable mold side, then driving the movable mold side to rotate 180 degrees with the product subjected to the first injection molding, closing the mold, performing injection molding on the second material without ejecting any structure on the movable mold side in the process, cooling, then opening the mold, and ejecting the product on the movable mold side.

The above-mentioned two-color mold suffers from the following drawbacks:

1. in the secondary injection molding process, the whole set of movable dies needs to be rotated laterally, the working process is complex, the precision required by rotation is high, and problems are easy to occur;

2. the mold has a complex structure, and more structural accessories cause more unstable factors during production;

3. the mould cost is high, and the maintenance is difficult, and the mould structure is complicated to lead to the mould size great, and then leads to the injection molding machine that production needs great, and manufacturing cost is on the high side.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a double-colored mould structure, it not only can simplify structure, reduce cost, can also simplify the working process, improve the rotation precision to reduce the problem that appears in the production process.

The utility model aims to realize the double-color mold structure, which comprises a fixed mold side and a movable mold side; the movable mold side comprises a movable mold core fixing plate and a forming insert fixing plate, a movable mold core A and a movable mold core B are fixed in the movable mold core fixing plate, and a forming insert A and a forming insert B are fixed in the forming insert fixing plate; the movable mold side also comprises a rotary ejection device which passes through the forming insert fixing plate and is fixedly connected with the movable mold core fixing plate.

The utility model discloses in, its theory of operation lies in: the rotary ejection device can directly drive the movable mould core fixing plate to eject and rotate, so that the working process can be simplified, the rotating precision can be improved, and the problems in the production process can be reduced; in addition, the structure is simple and the cost is low.

The process of carrying out double-color injection molding by utilizing the double-color mold structure comprises the following steps:

s1, after the double-color mold structure is assembled, fixing the fixed mold side to the injection side of the injection molding machine, and fixing the movable mold side to the ejection side of the injection molding machine;

s2, closing the die at the fixed die side and the movable die side, wherein the movable die core A corresponds to the molding insert A, the movable die core B corresponds to the molding insert B, and the first color product injection is started in the movable die core A;

s3, separating the fixed mold side from the movable mold side after the first color product is injected;

s4, ejecting the movable mould core fixing plate by the rotary ejection device, and rotating the movable mould core fixing plate by 180 degrees by the rotary ejection device;

s5, at the moment, the movable mould core A corresponds to the forming insert B, the movable mould core B corresponds to the forming insert A, the mould is closed, and second-color product injection is carried out in the movable mould core A to form a product;

and S6, separating the fixed die side and the movable die side, and ejecting the product.

When the movable mold core A and the movable mold core B are the same, when the second color product is injected into the movable mold core A in the step S5 to form a product, the first color product can be injected into the movable mold core B, and the movable mold core fixing plate is ejected out next time, so that the second color product can be injected into the movable mold core B to form a product, and the production efficiency is improved.

Owing to adopted above-mentioned scheme, consequently the utility model has the following advantage: the structure can be simplified, the cost is reduced, the working process can be simplified, the rotating precision is improved, and therefore the problems in the production process are reduced.

Further, the rotary ejection device comprises a connecting rod and a guide device, and the guide device comprises a ball ring and a guide sleeve fixed in the forming insert fixing plate; one end of the connecting rod penetrates through the guide sleeve and is fixed in the movable mould core fixing plate, the other end of the connecting rod is fixedly connected with the middle supporting rotating shaft on the machine table side, and the ball sleeve is sleeved on the periphery of the connecting rod and is fixed in the forming insert fixing plate.

Further, a guide hole and a fixing plate hole which is arranged above the guide hole and is larger than the guide hole are formed in the forming insert fixing plate, and the guide hole is matched with the guide device; the fixing plate is fixed in the fixing plate hole through a fastener.

Further, the ball circle includes ball circle A and ball circle B, and ball circle A and ball circle B set up the both ends at the uide bushing respectively.

The connecting rod is fixedly connected with a machine table side middle support rotating shaft through a connecting bearing, the connecting bearing comprises a machine table side connecting bearing and a movable die side connecting bearing which are fixedly connected, and the movable die side connecting bearing is arranged in the base plate.

Further, still establish on the guide support post and with ejector plate A and ejector plate B that movable mould benevolence A and movable mould benevolence B correspond respectively including the activity cover, the thimble hole has all been seted up between movable mould benevolence A and the ejector plate A and between movable mould benevolence B and the ejector plate B, and every thimble is downthehole all to be provided with the thimble movably, and the thimble bottom is fixed in ejector plate A and the ejector plate B that corresponds.

Further, the thimble plate A and the thimble plate B respectively comprise a thimble base plate and a thimble panel which are sequentially arranged from bottom to top, a boss is arranged below the thimble, a groove matched with the boss is formed in the bottom of the thimble panel, the thimble penetrates through the thimble panel, and the boss is arranged in the groove.

Drawings

The drawings of the utility model are as follows:

fig. 1 is a schematic perspective view of a two-color mold structure of the present invention.

Fig. 2 is a schematic perspective view of the mold fixing side of the present invention.

Fig. 3 is a schematic perspective view of the movable mold of the present invention.

Fig. 4 is a schematic front view of the movable mold side of the present invention.

Fig. 5 is a schematic cross-sectional view taken at a-a in fig. 4.

Fig. 6 is a schematic view of the rotary ejection device and connecting bearings, etc. of fig. 4.

Fig. 7 is a schematic sectional view at B-B in fig. 4.

In the figure: 1. producing a product; 2. a fixed mold side; 3. moving the mold side; 4. a movable mould core fixing plate; 5. forming an insert fixing plate; 6. a moving die core A; 7. a moving die core B; 8. forming the insert A; 9. forming the insert B; 10. rotating the ejection device; 11. a connecting rod; 12. a ball ring A; 13. a ball ring B; 14. a guide sleeve; 15. a fixing plate; 16. a fastener; 17. a guiding support column; 18. a base plate; 19. the machine table side is connected with a bearing; 20. the side of the movable mould is connected with a bearing; 21. connecting a bearing fixing screw; 22. a connecting rod fixing screw; 23. a screw; 24. ejector pin plates A and 25, ejector pin plate B; 26. a thimble hole; 27. a thimble; 28. a thimble base plate; 29. a thimble panel; 30. a boss; 31. and (4) a groove.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1 to 7, a two-color mold structure includes a fixed mold side 2 and a movable mold side 3; the moving die side 3 comprises a moving die core fixing plate 4 and a forming insert fixing plate 5, a moving die core A6 and a moving die core B7 are fixed in the moving die core fixing plate 4, and a forming insert A8 and a forming insert B9 are fixed in the forming insert fixing plate 5; the method is characterized in that: the moving die side 3 further comprises a rotary ejection device 10, and the rotary ejection device 10 penetrates through the forming insert fixing plate 5 to be fixedly connected with the moving die core fixing plate 4.

The utility model discloses in, its theory of operation lies in: the rotary ejection device 10 can directly drive the movable mould core fixing plate 4 to eject and rotate, so that the working process can be simplified, the rotating precision can be improved, and the problems in the production process can be reduced; in addition, the structure is simple and the cost is low.

s1, after the double-color mold structure is assembled, fixing the fixed mold side 2 on the injection side of the injection molding machine, and fixing the movable mold side 3 on the ejection side of the injection molding machine;

s2, closing the fixed die side 2 and the movable die side 3, enabling the movable die core A6 to correspond to the molding insert A8, enabling the movable die core B7 to correspond to the molding insert B9, and starting to inject the first color product 1 in the movable die core A6;

s3, after the first color product 1 is injected, separating the fixed die side 2 from the movable die side 3;

s4, ejecting the movable mould core fixing plate 4 by the rotary ejection device 10, and rotating the movable mould core fixing plate 4 by 180 degrees by the rotary ejection device 10;

s5, at the moment, the movable mold core A6 corresponds to the forming insert B9, the movable mold core B7 corresponds to the forming insert A8, the mold is closed, and the second color product 1 is injected into the movable mold core A6 to form a product 1;

and S6, separating the fixed die side 2 from the movable die side 3, and ejecting the product 1.

When the movable mold core a6 and the movable mold core B7 are the same, and the second color product 1 is injected into the movable mold core a6 in the step S5 to form the product 1, the first color product 1 can be injected into the movable mold core B7, and the movable mold core fixing plate 4 is ejected out next time, so that the second color product 1 can be injected into the movable mold core B7 to form the product 1, and the production efficiency is improved.

Further, the rotary ejection device 10 comprises a connecting rod 11 and a guiding device, wherein the guiding device comprises a ball ring and a guiding sleeve 14 fixed in the molding insert fixing plate 5; one end of a connecting rod 11 penetrates through a guide sleeve 14 to be fixed in the movable mould core fixing plate 4, the other end of the connecting rod 11 is fixedly connected with a machine table side middle support rotating shaft, and a ball sleeve is sleeved on the periphery of the connecting rod 11 and fixed in the forming insert fixing plate 5. In the present embodiment, the guiding sleeve 14 is a positioning medium, and functions to ensure the centrality and the position of the connecting rod 11; the ball ring is used for ensuring that the connecting rod 11 rotates smoothly in the forming insert fixing plate 5. The machine table side middle support rotating shaft is fixedly connected with the connecting rod 11 to realize the up-down movement and the rotation of the connecting rod 11. In addition, the connecting rod 11 can be fixedly connected with the movable mold core fixing plate 4 through a connecting rod fixing screw 22, and can also be fixedly connected in a welding, bonding, integrated arrangement mode and the like.

Further, the mold opening of the molding insert fixing plate 5 is facilitated while the guide device is fixed in the molding insert fixing plate 5; a guide hole and a fixing plate hole which is arranged above the guide hole and is larger than the guide hole are formed in the forming insert fixing plate 5, and the guide hole is matched with the guide device; a fixing plate 15 is fixed in the fixing plate hole by a fastener 16.

Further, in order to further ensure that the connecting rod 11 rotates smoothly in the molding insert fixing plate 5; the ball ring includes a ball ring a12 and a ball ring B13, and the ball ring a12 and the ball ring B13 are respectively provided at both ends of the guide sleeve 14.

Further, the mold insert fixing device further comprises a guiding support column 17 and a backing plate 18 arranged below the molding insert fixing plate 5, wherein the guiding support column 17 is fixed between the molding insert fixing plate 5 and the backing plate 18; the connecting rod 11 is fixedly connected with the machine table side middle support rotating shaft through a connecting bearing, the connecting bearing comprises a machine table side connecting bearing 19 and a movable die side connecting bearing 20 which are fixedly connected, and the movable die side connecting bearing 20 is arranged in the base plate 18. The backing plate 18 is used for fixing the two-color mold structure on the machine table side, and the guide support column 17 is used for facilitating the support of the two-color mold structure and the movement of the connecting rod 11 while saving cost. In this embodiment, the backing plate 18 is fixed on the machine table side, the connecting rod 11 is fixedly connected with the machine table side intermediate support rotating shaft through a connecting bearing, the connecting bearing comprises a machine table side connecting bearing 19 and a movable mold side connecting bearing 20 which are fixedly connected through a connecting bearing fixing screw 21, and the machine table side connecting bearing 19 and the movable mold side connecting bearing 20 are respectively fixed on the machine table side intermediate support rotating shaft and the lower end of the connecting rod 11 through a screw 23. The supporting and rotating shaft in the machine table side can drive the connecting bearing to move and rotate, so that the connecting rod 11 is driven to move and rotate. In this embodiment, the fixed connection mode of the connecting rod 11 and the supporting and rotating shaft in the machine table side is set after comprehensive consideration such as cost, installation and adjustment difficulty, mold opening difficulty and the like, and the device has the advantages of cost saving, simplicity in installation and adjustment, simplicity in mold opening and the like.

Further, the ejector pin plate structure further comprises an ejector pin plate A24 and an ejector pin plate B25 which are movably sleeved on the guide support column 17 and respectively correspond to the movable mould core A6 and the movable mould core B7, ejector pin holes 26 are respectively formed between the movable mould core A6 and the ejector pin plate A24 and between the movable mould core B7 and the ejector pin plate B25, an ejector pin 27 is movably arranged in each ejector pin hole 26, and the bottom of each ejector pin 27 is fixed in the corresponding ejector pin plate A24 and the corresponding ejector pin plate B25. In this embodiment, the ejector roller on the machine side passes through the backing plate 18 and abuts against the bottom surface of the ejector pin 27 plate, when the product 1 is injection molded in the moving die core a6, the ejector roller corresponding to the machine side ejects the ejector pin plate a24 upwards, and the ejector pin 27 of the ejector pin plate a24 ejects the product 1 in the moving die core a6 upwards; when the product 1 is injection molded in the movable mold core B7, the ejector roller corresponding to the machine side ejects the ejector plate B25 upward, and the ejector 27 of the ejector plate B25 ejects the product 1 in the movable mold core B7 upward.

Further, in order to facilitate fixing of the ejector 27 in the ejector plate a24 or the ejector plate B25 while saving the processing cost and the installation cost, in this embodiment, each of the ejector plate a24 and the ejector plate B25 includes an ejector base plate 28 and an ejector pin panel 29 which are sequentially arranged from bottom to top, a boss 30 is provided below the ejector 27, a groove 31 matching with the boss 30 is provided at the bottom of the ejector pin panel 29, the ejector pin 27 penetrates through the ejector pin panel 29, and the boss 30 is provided in the groove 31. The utility model discloses in, the top kun that holds in the palm pivot and platform side in the platform side is the structure of platform side among the prior art.

Claims

1. A double-color mold structure is characterized in that: comprises a fixed die side (2) and a movable die side (3); the movable mold side (3) comprises a movable mold core fixing plate (4) and a forming insert fixing plate (5), a movable mold core A (6) and a movable mold core B (7) are fixed in the movable mold core fixing plate (4), and a forming insert A (8) and a forming insert B (9) are fixed in the forming insert fixing plate (5); the moving die side (3) further comprises a rotary ejection device (10), and the rotary ejection device (10) penetrates through the forming insert fixing plate (5) to be fixedly connected with the moving die core fixing plate (4).

2. The two-color mold structure according to claim 1, wherein: the rotary ejection device (10) comprises a connecting rod (11) and a guide device, and the guide device comprises a ball ring and a guide sleeve (14) fixed in the molding insert fixing plate (5); one end of a connecting rod (11) penetrates through a guide sleeve (14) and is fixed in a movable mould core fixing plate (4), the other end of the connecting rod (11) is fixedly connected with a machine table side middle support rotating shaft, and a ball sleeve is sleeved on the periphery of the connecting rod (11) and is fixed in a forming insert fixing plate (5).

3. The two-color mold structure according to claim 2, wherein: a guide hole and a fixing plate hole which is arranged above the guide hole and is larger than the guide hole are formed in the forming insert fixing plate (5), and the guide hole is matched with the guide device; the fixing plate (15) is fixed in the fixing plate hole through a fastener (16).

4. The two-color mold structure according to claim 2 or 3, wherein: the ball ring comprises a ball ring A (12) and a ball ring B (13), and the ball ring A (12) and the ball ring B (13) are respectively arranged at two ends of the guide sleeve (14).

5. The two-color mold structure according to claim 1, 2 or 3, wherein: the mould insert fixing device further comprises a guide supporting column (17) and a base plate (18) arranged below the forming insert fixing plate (5), wherein the guide supporting column (17) is fixed between the forming insert fixing plate (5) and the base plate (18); the connecting rod (11) is fixedly connected with the supporting rotating shaft in the machine table side through a connecting bearing, the connecting bearing comprises a machine table side connecting bearing (19) and a movable die side connecting bearing (20) which are fixedly connected, and the movable die side connecting bearing (20) is arranged in a base plate (18).

6. The two-color mold structure according to claim 4, wherein: the mould insert fixing device further comprises a guide supporting column (17) and a base plate (18) arranged below the forming insert fixing plate (5), wherein the guide supporting column (17) is fixed between the forming insert fixing plate (5) and the base plate (18); the connecting rod (11) is fixedly connected with the supporting rotating shaft in the machine table side through a connecting bearing, the connecting bearing comprises a machine table side connecting bearing (19) and a movable die side connecting bearing (20) which are fixedly connected, and the movable die side connecting bearing (20) is arranged in a base plate (18).

7. The two-color mold structure according to claim 5, wherein: still establish on guide support post (17) and respectively with ejector plate A (24) and ejector plate B (25) that movable mould benevolence core A (6) and movable mould benevolence core B (7) correspond including the activity cover, ejector pin hole (26) have all been seted up between movable mould benevolence core A (6) and ejector plate A (24) and between movable mould benevolence core B (7) and ejector plate B (25), all the activity is provided with thimble (27) in every ejector pin hole (26), thimble (27) bottom is fixed in ejector plate A (24) and ejector plate B (25) that correspond.

8. The two-color mold structure according to claim 6, wherein: still establish on guide support post (17) and respectively with ejector plate A (24) and ejector plate B (25) that movable mould benevolence core A (6) and movable mould benevolence core B (7) correspond including the activity cover, ejector pin hole (26) have all been seted up between movable mould benevolence core A (6) and ejector plate A (24) and between movable mould benevolence core B (7) and ejector plate B (25), all the activity is provided with thimble (27) in every ejector pin hole (26), thimble (27) bottom is fixed in ejector plate A (24) and ejector plate B (25) that correspond.

9. The two-color mold structure according to claim 7, wherein: the ejector pin plate A (24) and the ejector pin plate B (25) respectively comprise an ejector pin base plate (28) and an ejector pin panel (29) which are sequentially arranged from bottom to top, a boss (30) is arranged below the ejector pin (27), a groove (31) matched with the boss (30) is formed in the bottom of the ejector pin panel (29), the ejector pin (27) penetrates through the ejector pin panel (29), and the boss (30) is arranged in the groove (31).

10. The two-color mold structure according to claim 8, wherein: the ejector pin plate A (24) and the ejector pin plate B (25) respectively comprise an ejector pin base plate (28) and an ejector pin panel (29) which are sequentially arranged from bottom to top, a boss (30) is arranged below the ejector pin (27), a groove (31) matched with the boss (30) is formed in the bottom of the ejector pin panel (29), the ejector pin (27) penetrates through the ejector pin panel (29), and the boss (30) is arranged in the groove (31).