Mould provided with fender capable of opening mould on main parting surface in advance and preventing mould plate from deforming
By setting up anti-collision pads and spring structures on the mold, the mold can be opened in advance and the template can be prevented from deforming. This solves the problem of mold deformation caused by injection pressure during long-term use and improves the quality of the mold and the product.
Patent Information
- Application Number
- CN202423315878.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-31
AI Technical Summary
During prolonged use, precision molds can deform due to injection pressure and clamping force, affecting mold life and the quality of plastic products.
Multiple collision pads are set on the moving and fixed mold plates, and springs are set under the collision pads so that the main parting surfaces of the moving and fixed molds open first after injection molding. The springs help to open the mold in advance and prevent the mold plates from deforming.
It extends the service life of the mold, improves the quality and precision of plastic products, reduces the product defect rate, and ensures that the fixed and moving mold plates open first during the mold opening process.
Smart Images
Figure CN223589974U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to thermoplastic plastic forming die field relates to the die of the counter pad with main parting surface advance mold opening and preventing template deformation, mainly applies to the forming die of precision grade plastic product, especially applies to the forming die of precision grade small and medium-sized plastic product with multiple mold opening sequence. BACKGROUND
[0002] The precision plastic product is used more and more widely in national industry, and gradually replaces metal parts in many aspects application. Therefore, the precision and quality requirement of plastic product is higher and higher, and the precision of die is the main factor to determine the precision of plastic product. In order to ensure that the main parting surface of the movable and fixed die body insert block of precision die in injection molding production collides with quality, the main parting surface of movable and fixed die plate needs to be given way, but the long time under the action of injection pressure and clamping force leads to template deformation, finally influences the service life of die and product quality, causes the manufacturing cost of plastic product to increase greatly, and the reduction of product quality causes customer complaints. SUMMARY
[0003] The utility model discloses a die of the counter pad with main parting surface advance mold opening and preventing template deformation, relies on setting multiple counter pads on movable and fixed die plate respectively, guarantees that counter pads are in zero clearance and close together, movable and fixed die have sufficient contact and support in die injection, movable die plate is provided with spring below counter pad, after die injection, counter pad is ejected forward under the action of spring, and the main parting surface of movable and fixed die is opened prior to the parting surface between movable die pad and movable die plate.
[0004] The utility model discloses a die of the counter pad with main parting surface advance mold opening and preventing template deformation, solves the movable and fixed die deformation problem in long-term production of precision grade die, guarantees that the main parting surface of movable and fixed die plate opens preferentially, guarantees that die production is stable and improves plastic product quality.
[0005] The utility model discloses a technical scheme is: be equipped with the mold of main parting plane advance opening mould and the counter -padded of preventing template deformation, its structure includes: fixed template 1, first upper counter -padded 2, second upper counter -padded 3, third upper counter -padded 4, fourth upper counter -padded 5, fifth upper counter -padded 6, sixth upper counter -padded 7, fixed mould insert 8, fixed mould insert 9, movable template 10, first lower counter -padded 11, second lower counter -padded 12, third lower counter -padded 13, fourth lower counter -padded 14, fifth lower counter -padded 15, sixth lower counter -padded 16, movable mould insert 17, movable mould first abstract insert 18, distance pull plate 19, movable mould pad 20, spare plate 21, be equipped with the mold of main parting plane advance opening mould and the counter -padded of preventing template deformation's connecting relation is: first upper counter -padded 2, second upper counter -padded 3, third upper counter -padded 4, fourth upper counter -padded 5, fifth upper counter -padded 6, sixth upper counter -padded 7 and the fixed template 1 parting plane's corresponding each pit three -sided surface contact and use bolt fastening, fixed mould insert 9 and fixed mould insert 8 face contact and use hanging platform connection, fixed mould insert 8 and fixed template 1 face contact and use bolt fastening, first lower counter -padded 11, second lower counter -padded 12, third lower counter -padded 13, fourth lower counter -padded 14, fifth lower counter -padded 15, sixth lower counter -padded 16 respectively with movable template 10 parting plane corresponding pit three -sided surface contact and use shoulder bolt fastening, spring and shoulder bolt clearance fit, shoulder bolt and spring one -to -one, movable mould first abstract insert 18 from movable mould pad 20 through movable mould insert 17 face contact, movable mould first abstract insert 18 and movable mould pad 20 use hanging platform connection, movable mould insert 17 and movable template 10 face contact and use bolt fastening, distance pull plate 19 and fixed template 1, movable template 10 side surface contact respectively use bolt fastening.
[0006] The fifth upper counter pad 6 is arranged on the fixed mold plate 1 and symmetrically distributed about the coordinate axis Y; the sixth upper counter pad 7 is arranged on the fixed mold plate 1 and symmetrically distributed about the coordinate axis X; the fifth lower counter pad 15 is arranged on the movable mold plate 10 and symmetrically distributed about the coordinate axis Y; the sixth lower counter pad 16 is arranged on the movable mold plate 10 and symmetrically distributed about the coordinate axis X; the distance between the bottom of the shoulder bolt hanging table arranged on the first lower counter pad 11, the second lower counter pad 12, the third lower counter pad 13, the fourth lower counter pad 14, the fifth lower counter pad 15, and the sixth lower counter pad 16 and the bottom of the counterbore arranged on the first lower counter pad 11, the second lower counter pad 12, the third lower counter pad 13, the fourth lower counter pad 14, the fifth lower counter pad 15, and the sixth lower counter pad 16 is the distance of the first lower counter pad 11, the second lower counter pad 12, the third lower counter pad 13, the fourth lower counter pad 14, the fifth lower counter pad 15, and the sixth lower counter pad 16 when the mold is opened; the first upper counter pad 2, the second upper counter pad 3, the third upper counter pad 4, the fourth upper counter pad 5, the fifth upper counter pad 6, the sixth upper counter pad 7, the first lower counter pad 11, the second lower counter pad 12, the third lower counter pad 13, the fourth lower counter pad 14, the fifth lower counter pad 15, and the sixth lower counter pad 16 are made of mold steel SKD11 material, and the hardness of the quenched material is guaranteed to be HRC54-58.
[0007] When the mold is opened, the first lower counter pad 11, the second lower counter pad 12, the third lower counter pad 13, the fourth lower counter pad 14, the fifth lower counter pad 15, and the sixth lower counter pad 16 arranged on the parting surface of the movable mold plate 10 are ejected from the recess arranged on the movable mold plate 10 under the action of spring tension, the fixed mold plate 1 and the movable mold plate 10 are instantaneously separated, the movable mold plate 10 and the movable mold pad 20 are driven by the forming machine to move linearly, when the fixed mold plate 1 and the movable mold plate 10 are pulled apart to a distance of the distance of the distance pulling plate, the movable mold plate 10 remains stationary, the movable mold pad 20 continues to move linearly under the driving of the forming machine, and the movable mold plate 10 and the movable mold pad 20 are separated; when the mold is closed, the movable mold pad 20 moves linearly upward under the thrust of the forming machine, when the movable mold pad 20 and the movable mold plate 10 are closed without gap, the movable mold pad 20 and the movable mold plate 10 continue to move linearly under the thrust of the forming machine, the first lower counter pad 11, the second lower counter pad 12, the third lower counter pad 13, the fourth lower counter pad 14, the fifth lower counter pad 15, and the sixth lower counter pad 16 arranged on the movable mold plate 10 are in surface contact with the first upper counter pad 2, the second upper counter pad 3, the third upper counter pad 4, the fourth upper counter pad 5, the fifth upper counter pad 6, and the sixth upper counter pad 7 arranged on the fixed mold plate 1, the forming machine applies driving force to make the movable mold pad 20 move linearly together with the movable mold plate 10, when the fixed mold plate 1 and the movable mold plate 10 are in surface contact, the spring arranged on the shoulder bolt is compressed, and the distance pulling plate 19 is reset.
[0008] The utility model discloses a beneficial effect is: through being equipped with the mould structure of main parting surface advance mould opening and the anti -deformation of template to the bump pad, the deformation problem of fixed template, movable template under the injection pressure of bigger of precision mould in long -term injection production is solved, prolongs the service life of template, improves the quality and mould life of injection mould, improves the quality precision of plastic product, guarantees the sequence of fixed template, movable template opening in advance in the mould opening process, solves the problem of easy sticking of plastic product, greatly reduces the bad rate of product. BRIEF DESCRIPTION OF DRAWINGS
[0009] The following will be combined with the specific embodiment of the drawings:
[0010] Figure 1 It is the fixed mould group schematic diagram of the mould of bump pad of being equipped with main parting surface advance mould opening and the anti -deformation of template Figure One .
[0011] Figure 2 It is the fixed template, movable template whole group erection schematic diagram of the mould of bump pad of being equipped with main parting surface advance mould opening and the anti -deformation of template Figure Two .
[0012] Figure 3 It is the movable template and movable template pad erection schematic diagram of the mould of bump pad of being equipped with main parting surface advance mould opening and the anti -deformation of template Figure Three .
[0013] Figure 4 It is the movable template and movable template pad erection section schematic diagram of the mould of bump pad of being equipped with main parting surface advance mould opening and the anti -deformation of template Figure Four .
[0014] Figure 5 It is the detailed structure schematic diagram of the mould of bump pad of being equipped with main parting surface advance mould opening and the anti -deformation of template Figure Five .
[0015] In the drawing: 1 fixed template, 2 first upper bump pad, 3 second upper bump pad, 4 third upper bump pad, 5 fourth upper bump pad, 6 fifth upper bump pad, 7 sixth upper bump pad, 8 fixed mould insert, 9 fixed mould insert, 10 movable template, 11 first lower bump pad, 12 second lower bump pad, 13 third lower bump pad, 14 fourth lower bump pad, 15 fifth lower bump pad, 16 sixth lower bump pad, 17 movable mould insert, 18 movable mould insert, 19 distance pull plate, 20 movable template pad, 21 spare plate.
[0016] Specific implementation:
[0017] The following will be combined with the specific embodiment of the drawings and detailed description of utility model.
[0018] When assembling the mold, the fixed mold insert 9 is assembled into the fixed mold block 8 and connected by a hanging table, and the fixed mold insert 9 and the fixed mold block 8 are assembled into the opening frame groove of the fixed mold plate 1 as a whole and fastened by bolts (see Figure 1 ); the first upper bump pad 2, the second upper bump pad 3, the third upper bump pad 4, the fourth upper bump pad 5, the fifth upper bump pad 6, and the sixth upper bump pad 7 are respectively assembled into the respective recesses of the parting surface of the fixed mold plate, and after the bump pads are in full contact with the bottom surface of the recesses of the fixed mold plate, they are fastened by bolts one by one (see Figure 1 ); the movable mold block 17 is matched into the opening frame groove of the movable mold plate 10, and after being in full contact, it is fastened by bolts, the four springs are respectively placed into the respective bump pads, the spring and the first lower bump pad 11, the second lower bump pad 12, the third lower bump pad 13, the fourth lower bump pad 14, the fifth lower bump pad 15, and the sixth lower bump pad 16 are respectively matched into the respective recesses of the parting surface of the movable mold plate 10 and fastened by shoulder bolts, the assembly of the movable mold plate 10 and the movable mold pad plate 20 are assembled together, the movable mold first extraction insert 18 is inserted from the lower end of the movable mold pad plate 20 and passes through and connected by a hanging table, and finally comes into full contact with the movable mold plate 10, the backup plate 21 is matched into the movable mold pad plate 20 and fastened by bolts, and the distance pull plate is respectively installed on the side surface of the fixed mold plate 1 and the movable mold plate 10 and fastened by bolts (see Figure 2 、 3 、4、5).
[0019] The specific forming process is: during injection of the forming machine, the bump pads at multiple positions of the main parting surfaces of the fixed mold plate and the movable mold plate are in full contact and tightly abutted together without gaps. After the injection is completed, all the bump pads of the parting surface of the movable mold plate 10 are bounced up under the action of the springs, forcing the fixed mold plate 1 and the movable mold plate 10 to be separated instantaneously, the movable mold plate 10 remains stationary, and the movable mold pad plate 20 continues to move linearly downward under the driving of the forming machine, while the parting surface of the movable mold plate 10 and the movable mold pad plate 20 is opened, the mold opening action is completed, and one injection molding cycle process is completed.
[0020] The above is the superior implementation mode of the utility model, and it should be pointed out that for the skilled in the art to which the utility model belongs, under the premise of not departing from the technical principles of the utility model, a number of improvements and deformations can be made, and these improvements and deformations should also be regarded as the protection scope of the utility model.
Claims
1. A mold provided with a main parting surface early opening and a mold plate deformation preventing counter pad, characterized in that The structure comprises: a fixed mold plate (1), a first upper counter pad (2), a second upper counter pad (3), a third upper counter pad (4), a fourth upper counter pad (5), a fifth upper counter pad (6), a sixth upper counter pad (7), a fixed mold insert (8), a fixed mold insert (9), a movable mold plate (10), a first lower counter pad (11), a second lower counter pad (12), a third lower counter pad (13), a fourth lower counter pad (14), a fifth lower counter pad (15), a sixth lower counter pad (16), a movable mold insert (17), a movable mold first extraction insert (18), a distance pull plate (19), a movable mold pad (20), a backup plate (21); the connecting relationship of the mold provided with the main parting surface advanced mold opening and the counter pad for preventing the deformation of the mold plate is as follows: the first upper counter pad (2), the second upper counter pad (3), the third upper counter pad (4), the fourth upper counter pad (5), the fifth upper counter pad (6), the sixth upper counter pad (7) are in three-face surface contact with the corresponding recesses of the parting surface of the fixed mold plate (1) and are fastened by bolts, the fixed mold insert (9) is in surface contact with the fixed mold insert (8) and is connected by a hanging table, the fixed mold insert (8) is in surface contact with the fixed mold plate (1) and is fastened by a bolt, the first lower counter pad (11), the second lower counter pad (12), the third lower counter pad (13), the fourth lower counter pad (14), the fifth lower counter pad (15), and the sixth lower counter pad (16) are respectively in three-face surface contact with the corresponding recesses of the parting surface of the movable mold plate (10) and are fastened by shoulder bolts, the spring is in clearance fit with the shoulder bolt, the shoulder bolt is in one-to-one correspondence with the spring, the movable mold first extraction insert (18) is in surface contact with the movable mold insert (17) from the movable mold pad (20), the movable mold first extraction insert (18) is connected with the movable mold pad (20) by a hanging table, the movable mold insert (17) is in surface contact with the movable mold plate (10) and is fastened by a bolt, and the distance pull plate (19) is in surface contact with the fixed mold plate (1) and the movable mold plate (10) and is fastened by bolts.
2. The mold with the main parting face advanced mold opening and the crash pad preventing the deformation of the mold plate according to claim 1, characterized in that The fifth upper counter pad (6) is arranged on the fixed mold plate (1) and symmetrically distributed about the coordinate axis Y; the sixth upper counter pad (7) is arranged on the fixed mold plate (1) and symmetrically distributed about the coordinate axis X; the fifth lower counter pad (15) is arranged on the movable mold plate (10) and symmetrically distributed about the coordinate axis Y; the sixth lower counter pad (16) is arranged on the movable mold plate (10) and symmetrically distributed about the coordinate axis X; the distance between the bottom of the shoulder bolt hanging table arranged on the first lower counter pad (11), the second lower counter pad (12), the third lower counter pad (13), the fourth lower counter pad (14), the fifth lower counter pad (15) and the sixth lower counter pad (16) and the bottom of the counterbore arranged on the first lower counter pad (11), the second lower counter pad (12), the third lower counter pad (13), the fourth lower counter pad (14), the fifth lower counter pad (15) and the sixth lower counter pad (16) is the distance of the first lower counter pad (11), the second lower counter pad (12), the third lower counter pad (13), the fourth lower counter pad (14), the fifth lower counter pad (15) and the sixth lower counter pad (16) when the mold is opened. The first upper counter pad (2), the second upper counter pad (3), the third upper counter pad (4), the fourth upper counter pad (5), the fifth upper counter pad (6), the sixth upper counter pad (7), the first lower counter pad (11), the second lower counter pad (12), the third lower counter pad (13), the fourth lower counter pad (14), the fifth lower counter pad (15) and the sixth lower counter pad (16) are made of mold steel SKD11, and the hardness of the quenched material is ensured to be HRC54-58.
3. The mold with the main parting face advanced mold opening and the crash pad preventing the deformation of the mold plate according to claim 1, characterized in that When the mold is opened, the first lower counter-pad (11), the second lower counter-pad (12), the third lower counter-pad (13), the fourth lower counter-pad (14), the fifth lower counter-pad (15), and the sixth lower counter-pad (16) arranged on the parting surface of the movable platen (10) are ejected from the pits arranged on the movable platen (10) under the action of the spring tension, the fixed platen (1) and the movable platen (10) are separated instantaneously, the movable platen (10) and the movable platen pad (20) are driven by the molding machine to move linearly, when the fixed platen (1) and the movable platen (10) are pulled apart to a distance reaching the distance limit of the pull plate, the movable platen (10) remains stationary, the movable platen pad (20) continues to move linearly under the driving of the molding machine, and the movable platen (10) and the movable platen pad (20) are separated; when the mold is closed, the movable platen pad (20) moves linearly upward under the thrust of the molding machine, after the movable platen pad (20) and the movable platen (10) are closed without gap, the movable platen pad (20) and the movable platen (10) continue to move linearly under the thrust of the molding machine, the first lower counter-pad (11), the second lower counter-pad (12), the third lower counter-pad (13), the fourth lower counter-pad (14), the fifth lower counter-pad (15), and the sixth lower counter-pad (16) arranged on the movable platen (10) are in surface contact with the first upper counter-pad (2), the second upper counter-pad (3), the third upper counter-pad (4), the fourth upper counter-pad (5), the fifth upper counter-pad (6), and the sixth upper counter-pad (7) arranged on the fixed platen (1), the molding machine applies driving force to drive the movable platen pad (20) and the movable platen (10) to move linearly, when the fixed platen (1) and the movable platen (10) are in surface contact, the spring arranged on the shoulder bolt is compressed, and the distance pull plate (19) is reset.