Demoulding device of precision mould

Abstract

The utility model relates to the field of mold demolding, and discloses a demolding device of a precision mold, which comprises a rear mold mechanical plate, square irons are fixedly connected to two ends of the top of the rear mold mechanical plate, a rear mold plate is fixedly connected to the tops of the square irons, a front mold plate is tightly attached to the top of the rear mold plate, and a front mold mechanical plate is arranged at the top of the front mold plate. A positioning ring is arranged at the top of the front mold mechanical plate, a plurality of sliding block pressing strips are fixedly connected to the two ends of the interior of the rear mold plate, and a driving assembly is arranged outside the output end of the oil cylinder body. According to the utility model, the motor drives the shaft rod and the driving gear to rotate, the driving gear rotates to drive the driven gear to rotate, and the threaded sliding block main body rotates to slide in a manner of being perpendicular to the mold opening and closing direction or forming a certain angle with the mold opening and closing direction, so that the threaded sliding block main body rotates out of a product buckling position, and finally a product is ejected out through the ejector pin; and the mold can be accurately taken out, and the taken-out mold is kept complete.

Description

Technical Field

[0001] The utility model relates to the field of mold demoulding, in particular to a demoulding device for a precision mold. Background Art

[0002] The use of demoulding devices can effectively protect molded parts and molds, reduce contact and friction between the two, reduce the risk of damage to molded parts during demoulding, and extend the service life of the mold. The demoulding device can achieve fast and stable removal of molded parts, thereby shortening the molding cycle and improving production efficiency. Compared with manual removal of molded parts, demoulding devices can usually achieve higher production speeds. The use of demoulding devices can ensure that molded parts are subject to minimal external force during the demoulding process, reduce deformation and damage, and thus ensure the quality stability of molded parts.

[0003] However, the existing demoulding devices have the problem that the demoulding mold is damaged or deformed when the precision mold is demoulded, and the mold exterior is damaged by hands when the mold is taken out. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a demoulding device for a precision mold, which aims to improve the problem of damage and deformation of the mold when demoulding the precision mold and damage to the outside of the mold by hands when taking out the mold.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a demolding device for a precision mold, comprising a rear mold mechanical plate, both ends of the top of the rear mold mechanical plate are fixedly connected with square irons, the top of the square iron is fixedly connected with the rear mold plate, the top of the rear mold plate is tightly attached to the front mold plate, the top of the front mold plate is provided with a front mold mechanical plate, the top of the front mold mechanical plate is provided with a positioning ring, the inner ends of the rear mold plate are fixedly connected with a plurality of slider strips, one end of the slider strip is externally fixedly connected with a cylinder fixing block, the outer end of the cylinder fixing block is fixedly connected with a cylinder body, a driving assembly is externally provided at the output end of the cylinder body, a gear fixing block is externally provided at the driving assembly, a front mold core is externally provided at the gear fixing block, the bottom of the front mold core is tightly attached to the rear mold core, and a threaded slider body is internally provided at the front mold core and the guide sleeve.

[0006] Preferably, the driving assembly includes a core-pulling slider seat, the output end of the oil cylinder body is fixedly connected to the outside of the core-pulling slider seat, the outside of the core-pulling slider seat is fixedly connected to the core-pulling slider body, one end of the core-pulling slider body is externally slidably connected to a threaded slider seat, a shovel is provided inside the threaded slider seat, a plurality of bushings are provided outside the threaded slider seat, the plurality of bushings are internally arranged outside the threaded slider body, a driven gear is externally provided at one end of the threaded slider body, the other end of the threaded slider body is externally arranged inside the rear mold core, the driven gear is externally meshed and connected to a driving gear, a bearing is provided inside the driving gear, one end of the bearing is externally fixedly connected to a shaft rod, and one end of the shaft rod is externally provided with a motor.

[0007] Preferably, a thimble fixing plate and a thimble bottom plate are provided between the plurality of square irons, a return pin body is provided at the four ends inside the thimble fixing plate and the thimble bottom plate, a return pin spring is provided outside the return pin body, and a thimble body and a middle support are provided inside the thimble fixing plate and the thimble bottom plate, respectively.

[0008] Preferably, one end of the top of the rear template is fixedly connected with a plurality of guide sleeves, the other end of the top of the rear template is fixedly connected with a plurality of guide posts, and the interior of the front template is arranged outside the guide posts and guide sleeves.

[0009] Preferably, a plurality of mold feet are provided inside one end of the front mold plate, the rear mold plate and the square iron.

[0010] Preferably, a nozzle is provided at the top of the front template, and the outside of the nozzle is arranged inside the front template.

[0011] Preferably, a plurality of garbage nails are provided between the ejector bottom plate and the rear mold mechanical plate.

[0012] Preferably, a plurality of water transport holes are provided inside the front template and the rear template.

[0013] Preferably, the tops of the oil cylinder fixing block and the slider pressure strip are fixedly connected with a travel switch fixing block, and the top of the travel switch fixing block is provided with a travel switch body.

[0014] Preferably, a limiting block is provided on the outside of one side of the slider strip, and an outer side of the limiting block is tightly attached to the outside of the core-pulling slider seat.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the shaft rod and the driving gear are driven to rotate by the motor, the driven gear is driven to rotate by the rotation of the driving gear, and the threaded slider body is driven to rotate by the rotation of the driven gear. The threaded slider body can be rotated perpendicular to the mold opening and closing direction or slide at a certain angle to the mold opening and closing direction, so that the threaded slider body is rotated out of the product buckle position, and then the core-pulling slider is pulled out of the product buckle position through the oil cylinder body, and the mold is cooled through the water delivery hole, and finally the product is ejected by the ejector pin, so as to accurately remove the mold and keep the removed mold intact.

[0017] 2. In the utility model, after the ejector ejects the product, the return pin and the rebound spring can achieve the effect of restoring the ejector after ejecting the product, and the middle support can achieve the effect of guiding the ejector plate during reciprocating motion, thereby preventing the ejector from deflecting during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of a demoulding device for a precision mold proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the front template of a demoulding device for a precision mold proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a driving component of a demoulding device for a precision mold proposed by the utility model;

[0021] Figure 4 The utility model is a schematic diagram of the return pin spring structure of a demoulding device of a precision mold.

[0022] Legend:

[0023] 1. Positioning ring; 2. Front mold mechanical plate; 3. Front mold plate; 4. Rear mold plate; 5. Ejector fixing plate; 6. Ejector bottom plate; 7. Trash nail; 8. Rear mold mechanical plate; 9. Square iron; 10. Mold foot; 11. Water transport hole; 12. Guide column; 13. Nozzle; 14. Front mold core; 15. Guide sleeve; 16. Shovel; 17. Cylinder fixing block; 18. Cylinder body; 19. Slider pressure strip; 20. Gear fixing block; 21. Stroke switch body; 22, stroke switch fixing block; 23, limit block; 24, rear mold core; 25, threaded slider body; 26, bushing; 27, driven gear; 28, threaded slider seat; 29, core-pulling slider body; 30, core-pulling slider seat; 31, motor; 32, shaft; 33, bearing; 34, driving gear; 35, ejector body; 36, return needle spring; 37, return needle body; 38, middle support. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings of the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-Figure 3 The utility model provides an embodiment: a demoulding device for a precision mold, comprising a rear mold mechanical plate 8, both ends of the top of the rear mold mechanical plate 8 are fixedly connected with square irons 9, the top of the square irons 9 is fixedly connected with a rear mold plate 4, the top of the rear mold plate 4 is tightly attached to the front mold plate 3, the top of the front mold plate 3 is provided with a front mold mechanical plate 2, the top of the front mold mechanical plate 2 is provided with a positioning ring 1, the inner ends of the rear mold plate 4 are fixedly connected with a plurality of slider strips 19, one end of the slider strip 19 is externally fixedly connected with a cylinder fixing block 17, the tops of the cylinder fixing block 17 and the slider strip 19 are fixedly connected with a travel switch fixing block 22, and the travel switch A travel switch body 21 is provided on the top of the switch fixing block 22, a cylinder body 18 is fixedly connected to the outside of the cylinder fixing block 17, a drive assembly is provided on the outside of the output end of the cylinder body 18, a gear fixing block 20 is provided on the outside of the drive assembly, the drive assembly includes a core-pulling slider seat 30, the output end of the cylinder body 18 is fixedly connected to the outside of the core-pulling slider seat 30, a core-pulling slider body 29 is fixedly connected to the outside of the core-pulling slider seat 30, one end of the core-pulling slider body 29 is externally slidably connected to a threaded slider seat 28, a shovel 16 is provided inside the threaded slider seat 28, and a plurality of shaft sleeves 26 are provided on the outside of the threaded slider seat 28. A plurality of sleeves 26 are internally arranged on the outside of the threaded slider body 25, a driven gear 27 is externally arranged at one end of the threaded slider body 25, and the other end of the threaded slider body 25 is externally arranged inside the rear mold core 24, and the driven gear 27 is externally meshed and connected with a driving gear 34, and a bearing 33 is provided inside the driving gear 34, and a shaft rod 32 is externally fixedly connected to one end of the bearing 33, and a motor 31 is externally arranged at one end of the shaft rod 32, and a front mold core 14 is externally arranged on the gear fixing block 20, and a nozzle 13 is provided on the top of the front mold core 14, and the nozzle 13 is externally arranged inside the front mold plate 3, and the bottom of the front mold core 14 is closely attached to the rear mold core 14. Core 24, front mold core 14, guide sleeve 15 are provided with threaded slider body 25, one side of slider pressure strip 19 is provided with limit block 23, the outer side of limit block 23 is in close contact with the outer side of core-pulling slider seat 30; the shaft rod 32 is driven to rotate by motor 31, the driving gear 34 is driven to rotate by the rotation of shaft rod 32, the driven gear 27 is driven to rotate by the rotation of driving gear 34, the threaded slider body 25 is driven to rotate by the rotation of driven gear 27, and the threaded slider body 25 can be rotated perpendicular to the mold opening and closing direction or at a certain angle to the mold opening and closing direction through the rotation of threaded slider body 25, so as to achieve the effect of assisting the product to realize a special shape structure.

[0026] Reference Figure 1 , Figure 4 A plurality of square irons 9 are provided between an ejector fixing plate 5 and an ejector bottom plate 6. Return pin bodies 37 are provided at four ends of the ejector fixing plate 5 and the ejector bottom plate 6. Return pin springs 36 are provided outside the return pin bodies 37. Ejector bodies 35 and middle brackets 38 are provided inside the ejector fixing plate 5 and the ejector bottom plate 6, respectively. The ejector bodies 35 provided inside the ejector fixing plate 5 and the ejector bottom plate 6 can push or pull the plastic product and the condensed material in the flow channel out of the mold cavity and the flow channel position so as to carry out the next injection molding work cycle, and the middle brackets 38 can guide the ejector fixing plate 5 during reciprocating motion.

[0027] Reference Figure 2 A plurality of guide sleeves 15 are fixedly connected to one end of the top of the rear template 4, a plurality of guide posts 12 are fixedly connected to the other end of the top of the rear template 4, and the interior of the front template 3 is arranged on the outside of the guide posts 12 and the guide sleeves 15; by fixing the guide posts 12 and the guide sleeves 15 on the top of the rear template 4, the shaft can be protected from wear and the solid lubrication feature can be made permanent.

[0028] Reference Figure 1 A plurality of mold feet 10 are arranged inside one end of the front template 3, the rear template 4, and the square iron 9; the plurality of mold feet 10 arranged inside the front template 3, the rear template 4, and the square iron 9 can protect the external parts of the mold such as the oil cylinder and facilitate the upper and lower molds.

[0029] A plurality of garbage nails 7 are arranged between the ejector bottom plate 6 and the rear mold mechanical plate 8. The small area of ​​the garbage nails 7 can prevent garbage from accumulating on the ejector plate, thereby preventing the ejector plate from being uneven or deformed.

[0030] A plurality of water transport holes 11 are provided inside the front template 3 and the rear template 4. The mold can be effectively cooled by the plurality of water transport holes 11 provided inside the front template 3 and the rear template 4, so that the mold temperature is kept within a certain range.

[0031] Working principle: When the device is needed, first demould the front template 3 and the rear template 4 to open the mold. When the front template 3 moves, it drives the shovel 16 fixedly connected to the front template 3 to move with the front template 3. When the shovel 16 moves, it drives the threaded slider seat 28 to retreat to provide space for the threaded slider body 25. In the second step of opening the mold, the shaft 32 is driven to rotate by starting the motor 31, and the driving gear 34 is driven to rotate by the rotation of the shaft 32. The driven gear 27 is driven by the rotation of the driving gear 34, and the threaded slider is driven by the rotation of the driven gear 27. The main body 25 rotates, and the threaded slider main body 25 can slide perpendicular to the mold opening and closing direction or at a certain angle to the mold opening and closing direction, so that the threaded slider main body 25 is rotated out of the product buckle position. The third step of mold opening is to operate the cylinder main body 18 to pull the core-pulling slider main body 29 out of the product buckle position. The fourth step of mold opening is to eject the product through the ejector main body 35. When the mold needs to be closed, the ejector is returned to its place by the return needle spring 36, and then the hardware is placed on the core-pulling slider main body 29 on one side and reset. Finally, the threaded slider main body 25 is reset first to achieve the effect of closing the front template 3 and the rear template 4 again.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A demoulding device for a precision mold, comprising a rear mold mechanical plate (8), characterized in that: Both ends of the top of the rear mold mechanical plate (8) are fixedly connected to square irons (9), the top of the square irons (9) is fixedly connected to the rear mold plate (4), the top of the rear mold plate (4) is tightly attached to the front mold plate (3), the top of the front mold plate (3) is provided with a front mold mechanical plate (2), the top of the front mold mechanical plate (2) is provided with a positioning ring (1), the inner ends of the rear mold plate (4) are fixedly connected to a plurality of slider strips (19), one end of the slider strip (19) is externally fixedly connected to the rear mold plate (4), and the rear mold plate (4) is fixedly connected to the front mold plate (3). A cylinder fixing block (17) is connected, the outside of the cylinder fixing block (17) is fixedly connected to a cylinder body (18), a driving assembly is arranged outside the output end of the cylinder body (18), a gear fixing block (20) is arranged outside the driving assembly, a front mold core (14) is arranged outside the gear fixing block (20), a rear mold core (24) is tightly attached to the bottom of the front mold core (14), and a threaded slider body (25) is arranged inside the front mold core (14) and the guide sleeve (15).

2. A demoulding device for a precision mold according to claim 1, characterized in that: The driving assembly comprises a core-pulling slider seat (30), the output end of the oil cylinder body (18) is fixedly connected to the outside of the core-pulling slider seat (30), the outside of the core-pulling slider seat (30) is fixedly connected to the core-pulling slider body (29), one end of the core-pulling slider body (29) is externally slidably connected to a threaded slider seat (28), a shovel (16) is provided inside the threaded slider seat (28), and a plurality of shaft sleeves (26) are provided outside the threaded slider seat (28), and the plurality of shaft sleeves (26) are internally connected to the core-pulling slider body (29). The driven gear (27) is arranged on the outside of the threaded slider body (25), one end of the threaded slider body (25) is arranged on the outside, the other end of the threaded slider body (25) is arranged on the inside of the rear mold core (24), the driven gear (27) is meshedly connected with the outside of the driving gear (34), the driving gear (34) is provided with a bearing (33), one end of the bearing (33) is fixedly connected with a shaft (32), and one end of the shaft (32) is provided with a motor (31) on the outside.

3. The demoulding device of a precision mold according to claim 1, characterized in that: A thimble fixing plate (5) and a thimble bottom plate (6) are arranged between the plurality of square irons (9); a return needle body (37) is arranged at four ends inside the thimble fixing plate (5) and the thimble bottom plate (6); a return needle spring (36) is arranged outside the return needle body (37); and a thimble body (35) and a middle support (38) are arranged inside the thimble fixing plate (5) and the thimble bottom plate (6), respectively.

4. The demoulding device of a precision mold according to claim 1, characterized in that: A plurality of guide sleeves (15) are fixedly connected to one end of the top of the rear template (4), a plurality of guide posts (12) are fixedly connected to the other end of the top of the rear template (4), and the interior of the front template (3) is arranged outside the guide posts (12) and the guide sleeves (15).

5. The demoulding device of a precision mold according to claim 1, characterized in that: A plurality of mold feet (10) are provided inside one end of the front mold plate (3), the rear mold plate (4) and the square iron (9).

6. The demoulding device of a precision mold according to claim 1, characterized in that: A nozzle (13) is provided at the top of the front mold core (14), and the outside of the nozzle (13) is arranged inside the front mold plate (3).

7. The demoulding device of a precision mold according to claim 3, characterized in that: A plurality of garbage nails (7) are arranged between the ejector bottom plate (6) and the rear mold mechanical plate (8).

8. The demoulding device of a precision mold according to claim 1, characterized in that: A plurality of water transport holes (11) are provided inside the front template (3) and the rear template (4).

9. The demoulding device of a precision mold according to claim 1, characterized in that: The tops of the oil cylinder fixing block (17) and the slider pressure strip (19) are fixedly connected to a travel switch fixing block (22), and the top of the travel switch fixing block (22) is provided with a travel switch body (21).

10. The demoulding device of a precision mold according to claim 1, characterized in that: A limiting block (23) is provided on the outside of one side of the slider pressure strip (19), and an outer side of the limiting block (23) is tightly attached to the outside of the core-pulling slider seat (30).

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