Lower shell forming die

Abstract

The utility model discloses a lower shell forming mold and belongs to the field of mold manufacturing, the lower shell forming mold comprises an upper mold plate, an upper mold core, a lower mold plate and a lower mold core, a first mounting groove is formed in the upper mold plate, the upper mold core is mounted in the first mounting groove, a second mounting groove is formed in the side, opposite to the upper mold plate, of the lower mold plate, and the second mounting groove is formed in the side, opposite to the upper mold plate, of the lower mold plate. The upper mold core is mounted in the first mounting groove, the lower mold core is mounted in the second mounting groove, the upper mold core and the lower mold core are mutually abutted and matched, fixing assemblies for fixing the upper mold core or the lower mold core are arranged in the first mounting groove and the second mounting groove, and a guide assembly is arranged between the upper mold plate and the lower mold plate. The die has the effects of reducing the die replacement difficulty and improving the working efficiency.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of mold manufacturing, in particular to a lower shell forming mold. BACKGROUND

[0002] The mold is various molds and tools used in industrial production for injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods to obtain the required products. In short, the mold is a tool for making shaped objects.

[0003] The mold comprises an upper mold and a lower mold, the lower mold comprises a bottom plate, a water distribution plate, a ejector plate and an upper mold plate, the water distribution plate is installed on the bottom plate, the upper mold plate is installed on the water distribution plate, and the ejector plate is arranged between the bottom plate and the water distribution plate; the upper mold comprises a top plate and the upper mold plate, a pouring gate is formed in the upper mold plate, an upper mold cavity is formed in the upper mold plate, an upper mold core is installed in the upper mold cavity, the pouring gate is communicated in the upper mold core, a lower mold cavity is formed in the lower mold plate, and a lower mold core is installed in the lower mold cavity. A plurality of ejector pins are installed on the ejector plate and connected to the lower mold core through the water distribution plate and the mold plate.

[0004] Due to production needs, molds of different shapes are required, but in the industry, each model is made into an independent mold, and the old mold needs to be removed from the machine tool and the new mold needs to be installed during production. Not only is the operation cumbersome, but also the workload is increased and the production efficiency is reduced. CONTENT OF THE UTILITY MODEL

[0005] In order to reduce the difficulty of changing the mold and improve the work efficiency, the application provides a lower shell forming mold.

[0006] The lower shell forming mold provided by the application adopts the following technical scheme:

[0007] Preferably, the lower shell forming mold comprises an upper mold plate, an upper mold core, a lower mold plate and a lower mold core, a first installation groove is formed in the upper mold plate, the upper mold core is installed in the first installation groove, a second installation groove is formed on one side of the lower mold plate relative to the upper mold plate, the lower mold core is installed in the second installation groove, the upper mold core and the lower mold core are in abutting cooperation with each other, a fixing assembly for fixing the upper mold core or the lower mold core is arranged in the first installation groove and the second installation groove, and a guide assembly is arranged between the upper mold plate and the lower mold plate.

[0008] By adopting the above technical scheme, the worker can take out the upper mold core and the lower mold core by releasing the fixing assembly, replace the mold core of different models, and then fix the mold core through the fixing assembly. Then, under the guidance of the guide assembly, the upper mold plate and the lower mold plate abut against each other, so that the upper mold core and the lower mold core abut and close, thereby facilitating the worker to reverse the mold, and then simplifying the replacement of the mold and improving the work efficiency.

[0009] Preferably, the lower mold plate is provided with a storage groove, and the fixing assembly is arranged in the storage groove, the fixing assembly comprises a fixing block, a pull rod and a first spring, the fixing block slides in the storage groove, the lower mold core side wall is provided with a fixing groove for inserting the fixing block, the fixing block is provided with an inclined surface, and the lower mold core abuts against the inclined surface; the pull rod is fixedly connected to the fixing block, the pull rod penetrates and slides in the lower mold plate, the first spring is sleeved on the pull rod, and the end of the pull rod away from the fixing block is fixedly connected with a pull block, and the two ends of the first spring are fixedly connected with the lower mold plate side wall and the pull block respectively.

[0010] By adopting the above technical scheme, when the staff inserts the lower mold core into the second installation groove, the lower mold core abuts against the inclined surface on the fixing block and pushes the fixing block to compress the first spring to move, when the fixing block is aligned to the fixing groove, the fixing block is inserted into the fixing groove under the thrust of the first spring, so that the position of the lower mold core is fixed; when the staff needs to replace the mold core, the staff pulls the pull block to move away from the lower mold plate, the pull block moves to stretch the first spring, and the pull rod moves to move the fixing block away from the fixing groove, after the fixing block moves away from the fixing groove, the staff can take out the lower mold core from the second installation groove.

[0011] Preferably, the guide assembly comprises a guide column and a guide pipe, the guide column is fixedly connected to the lower mold plate, and the guide pipe is fixedly connected to the upper mold plate.

[0012] By adopting the above technical scheme, before the staff prepares to pour the mold, the staff abuts and closes the upper mold plate and the lower mold plate, so as to abut and close the upper mold core and the lower mold core, the guide column is inserted into the guide pipe and slides in the guide pipe, so as to align the upper mold plate and the lower mold plate, and reduce the possibility of deviation of the upper mold core and the lower mold core.

[0013] Preferably, the inner wall of the second installation groove is provided with a sliding groove, and the side wall of the lower mold core is fixedly connected with a sliding block, and the sliding block slides in the sliding groove.

[0014] By adopting the above technical scheme, when the staff installs the lower mold core, the sliding block is aligned with the sliding groove and inserted into the sliding groove, so as to limit the position of the lower mold core, and reduce the possibility of deviation of the lower mold core.

[0015] Preferably, the lower mold core is fixedly connected with a rubber pad, and the upper mold core abuts and extrudes the rubber pad.

[0016] By adopting the above technical scheme, when the upper mold core and the lower mold core abut and close, the rubber pad can increase the sealing property of the connection, and reduce the possibility of leakage of injection molding.

[0017] Preferably, the inner wall of the second mounting groove is provided with a placing groove, and a clamping plate is slidably arranged in the placing groove and clamps the side wall of the lower mold core.

[0018] Through the above technical scheme, when the lower mold core is inserted into the second mounting groove, the clamping plate is driven by the driving assembly to approach and clamp the lower mold core, thereby enhancing the fixing effect of the lower mold core.

[0019] Preferably, the lower mold plate is provided with a placing groove, the driving assembly comprises an abutting plate, a rack and a second spring, the abutting plate is slidably arranged in the second mounting groove and abuts against the lower mold core, the rack is fixedly connected to the abutting plate and slidably arranged in the placing groove, a rotating rod is rotatably arranged in the placing groove, a gear is fixedly arranged on the rotating rod, the gear is engaged with the rack, the two ends of the rotating rod are respectively provided with a first connecting rod, the two ends of the rotating rod are connected to the first connecting rod through a first bevel gear set, a driving rod is threadedly connected to the clamping plate, the driving rod and the first connecting rod are connected through a second bevel gear set, and the two ends of the second spring are fixedly connected to the rack and the inner wall of the placing groove.

[0020] Through the above technical scheme, when the lower mold core is inserted into the second mounting groove, the lower mold core abuts against the abutting plate and compresses the second spring to drive the abutting plate to move, the movement of the abutting plate drives the rack to move, the movement of the rack drives the gear to rotate, the rotation of the gear drives the rotating rod to rotate, under the action of the first bevel gear set, the first connecting rod rotates with the rotating rod, the driving rod rotates with the first connecting rod under the action of the second bevel gear set, and the rotation of the driving rod drives the clamping plate to move towards the lower mold core and clamps the lower mold core.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] 1. The staff can take out the upper mold core and the lower mold core by releasing the fixing assembly, replace the mold core of different models, and then fix the mold core through the fixing assembly. Then, under the guidance of the guide assembly, the upper mold plate and the lower mold plate abut against each other, so that the upper mold core and the lower mold core abut and close, thereby facilitating the staff to perform the reverse molding, and then simplifying the replacement of the mold, and improving the work efficiency.

[0023] 2. When the staff installs the lower mold core, the sliding block is aligned with the sliding groove and inserted into the sliding groove, thereby limiting the position of the lower mold core, and thereby reducing the possibility of installation deviation of the lower mold core.

[0024] 3. When the upper mold core and the lower mold core abut and close, the rubber pad can increase the sealing property of the connection part, thereby reducing the possibility of leakage of injection molding. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the lower shell forming die.

[0026] Figure 2 It is a schematic diagram of the structure of the protruding slider in the embodiment of the application.

[0027] Figure 3 It is a schematic diagram of the structure of the protruding fixing assembly in the embodiment of the application.

[0028] Figure 4 It is a schematic diagram of the structure of the protruding driving assembly in the embodiment of the application.

[0029] Explanation of reference signs:

[0030] 1, upper die plate; 2, lower die plate; 3, upper die core; 4, lower die core; 5, first installation groove; 6, second installation groove; 7, guide assembly; 8, fixing assembly; 9, storage groove; 10, fixing block; 11, pull rod; 12, first spring; 13, inclined surface; 14, fixing groove; 15, pull block; 16, guide pipe; 17, guide column; 18, sliding groove; 19, slider; 20, rubber pad; 21, placement groove; 22, clamping plate; 23, driving assembly; 24, placement groove; 25, abutting plate; 26, rack; 27, second spring; 28, rotating rod; 29, gear; 30, first connecting rod; 31, first bevel gear set; 32, second bevel gear set; 33, driving rod. DETAILED DESCRIPTION

[0031] The following will be described in detail in combination with the accompanying drawings. Figures 1-4 The application will be further described in detail.

[0032] The embodiment of the application discloses a lower shell forming die, as shown in the drawings, which comprises an upper die plate 1, an upper die core 3, a lower die plate 2 and a lower die core 4. Figure 1 The upper die plate 1 is provided with a first installation groove 5 in the vertical direction, the upper die core 3 is installed in the first installation groove 5, the lower die plate 2 is provided with a second installation groove 6 in the vertical direction on one side relative to the upper die plate 1, the lower die core 4 is installed in the second installation groove 6, the upper die core 3 and the lower die core 4 abut and close to each other, the first installation groove 5 and the second installation groove 6 are both provided with a fixing assembly 8 for fixing the upper die core 3 or the lower die core 4, the upper end surface of the lower die core 4 is fixedly connected with a rubber pad 20, and the lower end surface of the upper die core 3 abuts and is pressed on the rubber pad 20.

[0033] As shown in the drawings, Figure 1As shown, a guide assembly 7 is arranged between the upper die plate 1 and the lower die plate 2, the guide assembly 7 comprises a plurality of guide columns 17 and a plurality of guide pipes 16, the plurality of guide columns 17 are respectively fixedly welded on the periphery of the lower die plate 2, the plurality of guide pipes 16 are fixedly welded on the periphery of the upper die plate 1, the guide pipe 16 is sleeved and slides on the guide column 17. Before the staff prepares to pour the mold, the staff abuts and closes the upper die plate 1 and the lower die plate 2, the guide column 17 is inserted into and slides in the guide pipe 16, so that the upper die plate 1 and the lower die plate 2 are aligned, and the possibility of deviation of the upper die core 3 and the lower die core 4 is reduced.

[0034] As shown in Figure 2 and Figure 3 The upper die plate 1 and the lower die plate 2 in the application have the same internal structure, and the lower die plate 2 is taken as an example in the application. The second installation groove 6 is provided with a sliding groove 18 on the inner wall in the vertical direction, and the lower die core 4 is fixedly welded with a sliding block 19 on the two opposite side walls, and the sliding block 19 slides in the sliding groove 18; when the staff installs the lower die core 4, the sliding block 19 is aligned with the sliding groove 18 and inserted into the sliding groove 18, so as to limit the position of the lower die core 4, and the possibility of installation deviation of the lower die core 4 is reduced. The storage groove 9 is arranged on both sides of the lower die plate 2, and the fixing assembly 8 is arranged in the storage groove 9 on both sides; the fixing assembly 8 comprises a fixed block 10, a pull rod 11 and a first spring 12, the fixed block 10 slides in the storage groove 9 in the horizontal direction, the two side walls of the lower die core 4 are respectively provided with two fixed slots 14 for inserting the two fixed blocks 10 in the horizontal direction, and the end of the fixed block 10 close to the lower die core 4 is provided with an inclined surface 13, and the lower die core 4 abuts the inclined surface 13.

[0035] As shown in Figure 3 The end of the pull rod 11 is fixedly welded to the fixed block 10, the other end penetrates and slides in the side wall of the lower die plate 2, the first spring 12 is sleeved on the pull rod 11, the end of the pull rod 11 away from the fixed block 10 is fixedly welded with a pull block 15, and the two ends of the first spring 12 are respectively fixedly welded between the side wall of the lower die plate 2 and the side wall of the pull block 15. When the staff inserts the lower die core 4 into the second installation groove 6, the lower die core 4 abuts the inclined surface 13 on the fixed block 10 and pushes the fixed block 10 to compress the first spring 12 to move, when the fixed block 10 is aligned to the fixed slot 14, the fixed block 10 is inserted into the fixed slot 14 under the thrust of the first spring 12, so as to fix the position of the lower die core 4.

[0036] As shown in Figure 4As shown, the second installation groove 6 is provided with a placing groove 21 on the inner wall, and a clamping plate 22 horizontally slides in the placing groove 21. The clamping plate 22 is clamped on the side wall of the lower die core 4. The lower die plate 2 is provided with a driving assembly 23 for driving the clamping plate 22 to move. The lower die plate 2 is provided with a placing groove 24. The driving assembly 23 includes an abutting plate 25, a rack 26 and a second spring 27. The abutting plate 25 is in the second installation groove 6 and slides in the second installation groove 6 in the vertical direction. The lower end surface of the lower die core 4 abuts the upper end surface of the abutting plate 25. The rack 26 is fixedly welded to the lower end surface of the abutting plate 25 and slides in the placing groove 24 in the vertical direction. The second spring 27 is arranged in the vertical direction. The two ends of the second spring 27 are fixedly welded to the lower end surface of the rack 26 and the inner wall of the placing groove 24, respectively. A rotating rod 28 is arranged in the placing groove 24 in the horizontal direction. A gear 29 is fixedly sleeved on the middle of the rotating rod 28. The gear 29 is engaged with the rack 26. The two ends of the rotating rod 28 are respectively provided with a first connecting rod 30. The first connecting rod 30 and the rotating rod 28 are arranged perpendicular to each other. The two ends of the rotating rod 28 are connected to the first connecting rod 30 through a first bevel gear 31 set. A driving rod 33 is threadedly connected to the clamping plate 22. The driving rod 33 and the first connecting rod 30 are connected through a second bevel gear 32 set.

[0037] As shown in Figure 3 and Figure 4 When the worker installs the lower die core 4, the lower die core 4 is inserted into the second installation groove 6. The lower die core 4 abuts the abutting plate 25 and compresses the second spring 27 to drive the abutting plate 25 to move. The movement of the abutting plate 25 drives the rack 26 to move. The movement of the rack 26 drives the gear 29 to rotate. The rotation of the gear 29 drives the rotating rod 28 to rotate. The first connecting rod 30 rotates with the rotating rod 28 under the action of the first bevel gear 31 set. The driving rod 33 rotates with the first connecting rod 30 under the action of the second bevel gear 32 set. The driving rod 33 rotates to drive the clamping plate 22 to move towards the lower die core 4 and is clamped on the lower die core 4, thereby enhancing the fixing effect of the lower die core 4.

[0038] As shown in Figure 3 and Figure 4 When different models need to be poured, the worker removes the fixed block 10 from the lower die core 4 by pulling the pull rod 11, releases the clamping effect of the clamping plate 22, takes out the lower die core 4, replaces the die core with a different model, installs the new die core, and limits the die core under the action of the fixing assembly 8, thereby reducing the difficulty of replacing the die and improving the work efficiency.

[0039] The implementation principle of the embodiment of the application is that the worker can take out the upper die core 3 and the lower die core 4 by releasing the fixing assembly 8, replace the die core of a different model, fix the die core again through the fixing assembly 8, and then the worker guides the upper die plate 1 and the lower die plate 2 to abut against each other under the guidance of the guide assembly 7, so that the upper die core 3 and the lower die core 4 abut and close, and then the worker can easily perform reverse molding, and then the mold replacement is simple, and the work efficiency is improved.

[0040] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A lower shell forming die comprising an upper die plate (1), an upper die core (3), a lower die plate (2) and a lower die core (4), characterized in that: The first installation groove (5) is arranged in the upper die plate (1), the upper die core (3) is installed in the first installation groove (5), the second installation groove (6) is arranged in one side of the lower die plate (2) relative to the upper die plate (1), the lower die core (4) is installed in the second installation groove (6), the upper die core (3) and the lower die core (4) are abutted and matched with each other, the first installation groove (5) and the second installation groove (6) are both provided with the fixing assembly (8) for fixing the upper die core (3) or the lower die core (4), and the guiding assembly (7) is arranged between the upper die plate (1) and the lower die plate (2).

2. A lower shell forming mold according to claim 1, characterized in that: The storage groove (9) is arranged on the lower die plate (2), the fixing assembly (8) is arranged in the storage groove (9), the fixing assembly (8) comprises a fixing block (10), a pull rod (11) and a first spring (12), the fixing block (10) slides in the storage groove (9), the fixed groove (14) for inserting the fixing block (10) is arranged on the side wall of the lower die core (4), the fixing block (10) is provided with the inclined surface (13), and the lower die core (4) is abutted to the inclined surface (13); the pull rod (11) is fixedly connected to the fixing block (10), the pull rod (11) penetrates and slides in the lower die plate (2), the first spring (12) is sleeved on the pull rod (11), one end of the pull rod (11) away from the fixing block (10) is fixedly connected with the pull block (15), and the two ends of the first spring (12) are fixedly connected to the side wall of the lower die plate (2) and the pull block (15) respectively.

3. The lower shell forming mold of claim 1, wherein: The guiding assembly (7) comprises a guide column (17) and a guide pipe (16), the guide column (17) is fixedly connected to the lower die plate (2), and the guide pipe (16) is fixedly connected to the upper die plate (1).

4. The lower shell forming mold of claim 1, wherein: The sliding groove (18) is arranged in the inner wall of the second installation groove (6), and the sliding block (19) is fixedly connected to the side wall of the lower die core (4) and slides in the sliding groove (18).

5. The lower shell forming mold of claim 1, wherein: The rubber pad (20) is fixedly connected to the upper die core (3) and is abutted and extruded on the rubber pad (20).

6. The lower shell forming mold of claim 1, wherein: The placing groove (21) is arranged in the inner wall of the second installation groove (6), the clamping plate (22) slides in the placing groove (21), the clamping plate (22) is clamped to the side wall of the lower die core (4), and the drive assembly (23) for driving the clamping plate (22) to move is arranged in the lower die plate (2).

7. A lower shell forming mold according to claim 6, wherein: The lower mold plate (2) is provided with a placing groove (24), the driving assembly (23) comprises an abutting plate (25), a rack (26) and a second spring (27), the abutting plate (25) slides in the second installation groove (6), and the lower mold core (4) abuts against the abutting plate (25); the rack (26) is fixedly connected with the abutting plate (25) and slides in the placing groove (24) through the inner wall of the placing groove (24), a rotating rod (28) is rotatably arranged in the placing groove (24), a gear (29) is fixedly sleeved on the rotating rod (28), the gear (29) is engaged with the rack (26); the two ends of the rotating rod (28) are respectively provided with first connecting rods (30), the two ends of the rotating rod (28) are connected with the first connecting rods (30) through first bevel gears (31), a driving rod (33) is screwedly connected to the clamping plate (22), the driving rod (33) and the first connecting rods (30) are connected through second bevel gears (32), and the two ends of the second spring (27) are fixedly connected with the rack (26) and the inner wall of the placing groove (24).

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