Laminated precision mold

Abstract

The utility model relates to the field of precision dies, and discloses a laminated precision die which comprises a lower die, an upper die is detachably installed at the top end of the outer wall of the lower die through a positioning assembly, an inner die core is detachably installed on the inner wall of the lower die through a fixing assembly, and a plurality of sets of guide blocks are fixedly connected to the bottom end of the outer wall of the inner die core. The fixing assembly comprises a fixing base, the outer wall of the fixing base is elastically connected with a wedge block through a reset spring, the outer wall of the left side of the wedge block is fixedly connected with a connecting rod, the end, away from the wedge block, of the connecting rod is fixedly connected with a fixing block, and the outer wall of the left side of the fixing base is slidably connected with a triangular block. According to the mold, the mold can have the function of replacing the mold grooves with different sizes by replacing the inner mold core, the inner mold core can be more conveniently detached and replaced by pushing the triangular block, the overall structure is simple and convenient, and the number of the mold grooves used by enterprises can be greatly reduced.

Description

Technical Field

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

[0002] A laminated precision mold is a mold used to manufacture laminated workpieces, usually used to manufacture parts or products with complex shapes and high precision requirements. This mold is usually composed of multiple modules, each of which has a specific function to ensure the accuracy and quality of the final product.

[0003] After searching, Chinese patent announcement number: CN 216708139 U discloses a thin material and thin wall laminated rapid precision molding injection mold, including a base plate, a lower mold, a connecting pipe, a positioning rod, an upper mold, a model groove, a limit seat and a clamping mechanism. The utility model sets a limit seat at the upper end of the upper mold. After the clamp rod is embedded in the inner side of the limit groove, the pressure block fits with the two sides of the clamp rod. At the same time, the compression spring drives the pressure block to limit and fix the clamp rod through the elastic potential energy of restoring deformation, thereby achieving the advantage of being able to quickly fix the clamp rod; by setting a clamping mechanism at the upper end of the lower mold, when the upper mold moves to the lower end, the pressure rod will be pressed to move to the lower end, so that the pressure rod pushes the push rod and the top block to move to the left end through the swing rod, so that the top block drives the clamp rod to rotate around the reset shaft, is embedded in the inner side of the limit groove, and clamps the upper mold, thereby achieving the advantage of being able to prevent the upper mold and the lower mold from deviating.

[0004] Although the above device clamps the upper mold to firmly connect the upper mold and the lower mold, the mold groove size inside the existing mold is usually fixed. When processing different types of parts, different molds often need to be replaced, resulting in increased processing costs. Therefore, a laminated precision mold is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a laminated precision mold, which aims to improve the problem in the prior art that different molds often need to be replaced when processing different types of parts.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a laminated precision mold, including a lower mold, the top end of the outer wall of the lower mold is detachably mounted with an upper mold through a positioning assembly, the inner wall of the lower mold is detachably mounted with an inner mold core through a fixing assembly, the bottom end of the outer wall of the inner mold core is fixedly connected with multiple groups of guide blocks, the fixing assembly includes a fixed seat, the outer wall of the fixed seat is elastically connected with a wedge block through a reset spring, the left outer wall of the wedge block is fixedly connected with a connecting rod, the end of the connecting rod away from the wedge block is fixedly connected with a fixed block, and the outer wall of the left side of the fixed seat is slidably connected with a triangular block.

[0007] As a further description of the above technical solution:

[0008] The positioning assembly comprises a positioning block, which is elastically connected to the inner wall of the lower die through a limit spring, and a pull rod is fixedly connected to the outer side wall of the positioning block.

[0009] As a further description of the above technical solution:

[0010] The fixing seat is fixedly connected to the inner side wall of the lower mold, and the connecting rod passes through and is slidably connected to the inner wall of the fixing seat.

[0011] As a further description of the above technical solution:

[0012] One end of the return spring is fixedly connected to the left outer wall of the wedge block, the other end of the return spring is fixedly connected to the right outer wall of the fixing seat, and the wedge block is slidably connected to the inner side wall of the lower mold.

[0013] As a further description of the above technical solution:

[0014] The bottom end of the inner wall of the lower mold is provided with multiple groups of positioning grooves, the outer wall of the guide block is plugged into the inner wall of the positioning groove, the bottom end of the outer wall of the fixed block is provided with an oblique groove, and the outer wall of the triangular block is in contact with the outer wall of the oblique groove.

[0015] As a further description of the above technical solution:

[0016] The inner mold core is slidably connected to the inner wall of the lower mold, and a clamping groove is provided on the outer side wall of the inner mold core, and the wedge block is clamped with the inner wall of the clamping groove.

[0017] As a further description of the above technical solution:

[0018] One end of the limit spring is fixedly connected to the outer side wall of the positioning block, and the other end of the limit spring is fixedly connected to the inner wall of the top end of the lower mold.

[0019] As a further description of the above technical solution:

[0020] The positioning block is slidably connected to the inner wall of the top end of the lower mold, the pull rod passes through and is slidably connected to the inner wall of the top end of the lower mold, a slot hole is opened on the inner wall of the bottom end of the upper mold, and the positioning block is clamped with the inner wall of the slot hole.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, through the cooperation of the fixed block and the triangular block, the device can replace the mold with mold grooves of different sizes by replacing the inner mold core, and the inner mold core can be disassembled and replaced more conveniently by pushing the triangular block. The overall structure is simple and convenient, which can greatly reduce the cost of enterprise use.

[0023] 2. In the utility model, by setting a positioning component, when the upper mold of the device is fitted with the lower mold, the positioning block is used to engage with the slot of the upper mold, so that the upper mold and the lower mold are tightly fitted, thereby solving the problem of gap caused by offset between the upper mold and the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an overall three-dimensional schematic diagram of a laminated precision mold proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the upper mold, inner mold core and lower mold in the separated state of a laminated precision mold proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the cross-sectional structure of the lower mold of a laminated precision mold proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the triangular block and the fixed seat of a laminated precision mold in a separated state proposed by the utility model;

[0028] Figure 5 The utility model is a schematic diagram of a partial cross-sectional structure of an upper mold of a laminated precision mold.

[0029] Legend:

[0030] 1. Lower die; 2. Upper die; 3. Positioning assembly; 31. Limit spring; 32. Positioning block; 33. Pull rod; 4. Fixing assembly; 41. Fixing seat; 42. Return spring; 43. Wedge block; 44. Connecting rod; 45. Fixing block; 46. Triangular block; 5. Inner die core; 6. Guide block. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments 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 in 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.

[0032] Reference Figure 1-Figure 3The utility model provides an embodiment: a laminated precision mold, including a lower mold 1, with empty grooves on both sides of the lower mold 1, which facilitate air to enter the interior of the lower mold 1 by setting the empty grooves, so as to keep a constant temperature of the inner mold core 5, the top of the outer wall of the lower mold 1 is detachably mounted with an upper mold 2 through a positioning component 3, the inner wall of the lower mold 1 is detachably mounted with an inner mold core 5 through a fixing component 4, the surface of the inner mold core 5 is provided with a mold groove corresponding to the upper mold 2, and the inner mold core 5 can be replaced according to different types of products by replacing the inner mold core 5, the bottom end of the outer wall of the inner mold core 5 is fixedly connected with multiple groups of guide blocks 6, the bottom end of the inner wall of the lower mold 1 is provided with multiple groups of positioning grooves, the outer wall of the guide block 6 is plugged into the inner wall of the positioning groove, and the plugging between the two can position and fix the inner mold core 5 and the lower mold 1 to prevent the inner mold core 5 from shaking when the upper mold 2 is performing fitting injection molding on the inner mold core 5.

[0033] Reference Figure 2-Figure 4 The bottom end of the outer wall of the fixed block 45 is provided with an oblique groove, and the outer wall of the triangular block 46 contacts the outer wall of the oblique groove. The triangular block 46 moves laterally on the inner wall of the fixed seat 41 to contact the inclined surface of the bottom end of the fixed block 45, thereby squeezing the fixed block 45 to drive the connecting rod 44 and the wedge block 43 to move outward synchronously. The fixed assembly 4 includes a fixed seat 41, which is fixedly connected to the inner side wall of the lower mold 1, and the connecting rod 44 passes through and is slidably connected to the inner wall of the fixed seat 41. The outer wall of the fixed seat 41 is elastically connected to the wedge block 43 through a return spring 42, one end of the return spring 42 is fixedly connected to the left outer wall of the wedge block 43, and the other end of the return spring 42 is fixedly connected to the right outer wall of the fixed seat 41. The function of the reset spring 42 is that after the inclined surface of the wedge block 43 is squeezed and moved, it can be automatically reset by the reset spring 42. The wedge block 43 is slidably connected to the inner side wall of the lower mold 1, and the inner mold core 5 is slidably connected to the inner wall of the lower mold 1. A groove is provided on the outer side wall of the inner mold core 5. The wedge block 43 is clamped with the inner wall of the groove, and the clamping connection between the two can firmly install and fix the inner mold core 5 and the lower mold 1 to prevent the inner mold core 5 from detaching from the inside of the lower mold 1 during use. The left outer wall of the wedge block 43 is fixedly connected to a connecting rod 44, and the end of the connecting rod 44 away from the wedge block 43 is fixedly connected to a fixed block 45, and the outer wall on the left side of the fixed seat 41 is slidably connected to a triangular block 46.

[0034] Reference Figure 2 and Figure 5The positioning assembly 3 includes a positioning block 32, which is elastically connected to the inner wall of the lower mold 1 through a limit spring 31, and the positioning block 32 is slidably connected to the inner wall of the top end of the lower mold 1. The pull rod 33 passes through and is slidably connected to the inner wall of the top end of the lower mold 1. A slot is provided on the inner wall of the bottom end of the upper mold 2, and the positioning block 32 is engaged with the inner wall of the slot. The engagement between the two allows the upper mold 2 and the lower mold 1 to be fitted together to avoid a gap when the two are fitted together, and also aligns the upper mold 2 to avoid a gap between the two. The outer side wall of the positioning block 32 is fixedly connected with a pull rod 33, one end of the limit spring 31 is fixedly connected to the outer side wall of the positioning block 32, and the other end of the limit spring 31 is fixedly connected to the inner wall of the top end of the lower mold 1. The function of the limit spring 31 is that the positioning block 32 can be automatically reset after being squeezed and moved.

[0035] Working principle: This device is basically consistent with other mold usage methods and belongs to conventional technology within the field, so it will not be elaborated here. When injection molding is required according to different shapes and sizes, different inner mold cores 5 can be replaced, and the triangular block 46 can be pushed to move laterally on the surface of the fixed seat 41, so that the inclined surface of the bottom end of the fixed block 45 can be squeezed by the inclined surface of the triangular block 46. When the inclined surfaces of the two are in contact, the triangular block 46 will squeeze the fixed block 45 to drive the connecting rod 44 to move outward on the inner wall of the fixed seat 41, so that the wedge block 43 at the other end of the connecting rod 44 can be disengaged from the slot of the inner mold core 5. At this time, the inner mold core 5 can be easily and quickly disassembled to replace the inner mold core 5 of the corresponding mold.

[0036] When the corresponding inner mold core 5 is placed into the inner wall of the lower mold 1, its outer wall will squeeze the inclined surface of the wedge block 43, so that the wedge block 43 drives the connecting rod 44 to move on the inner wall of the fixing seat 41 until the inner mold core 5 is completely installed on the inner wall of the lower mold 1. The wedge block 43 will be elastically acted upon by the reset spring 42 to restore it to its original position to engage with the card slot, thereby fixing the inner mold core 5. At this time, the installation of the inner mold core 5 is completed.

[0037] At the same time, when the upper mold 2 is fitted with the lower mold 1, the slotted hole at the bottom of the upper mold 2 will squeeze the inclined surface of the positioning block 32, thereby squeezing the positioning block 32 to move on the inner wall of the lower mold 1, and allowing the limit spring 31 to be elastically compressed until the upper mold 2 is completely fitted with the lower mold 1. The positioning block 32 will be elastically acted upon by the limit spring 31 and restored to its original position, thereby contacting the slotted hole of the upper mold 2, thereby fixing the upper mold 2 and the lower mold 1, and aligning the upper mold 2 and the lower mold 1.

[0038] 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 laminated precision mold, comprising a lower mold (1), characterized in that: The top end of the outer wall of the lower mold (1) is detachably mounted with an upper mold (2) via a positioning assembly (3); the inner wall of the lower mold (1) is detachably mounted with an inner mold core (5) via a fixing assembly (4); the bottom end of the outer wall of the inner mold core (5) is fixedly connected with a plurality of guide blocks (6); the fixing assembly (4) comprises a fixing seat (41); The outer wall of the fixed seat (41) is elastically connected to a wedge block (43) via a return spring (42); the left outer wall of the wedge block (43) is fixedly connected to a connecting rod (44); the end of the connecting rod (44) away from the wedge block (43) is fixedly connected to a fixed block (45); and the left outer wall of the fixed seat (41) is slidably connected to a triangular block (46).

2. A laminated precision mold according to claim 1, characterized in that: The positioning assembly (3) comprises a positioning block (32), wherein the positioning block (32) is elastically connected to the inner wall of the lower mold (1) via a limit spring (31), and a pull rod (33) is fixedly connected to the outer side wall of the positioning block (32).

3. The laminated precision mold according to claim 1, characterized in that: The fixing seat (41) is fixedly connected to the inner side wall of the lower mold (1), and the connecting rod (44) passes through and is slidably connected to the inner wall of the fixing seat (41).

4. The laminated precision mold according to claim 1, characterized in that: One end of the return spring (42) is fixedly connected to the left outer wall of the wedge block (43), the other end of the return spring (42) is fixedly connected to the right outer wall of the fixing seat (41), and the wedge block (43) is slidably connected to the inner side wall of the lower mold (1).

5. The laminated precision mold according to claim 1, characterized in that: The bottom end of the inner wall of the lower mold (1) is provided with a plurality of positioning grooves, the outer wall of the guide block (6) is plugged into the inner wall of the positioning groove, the bottom end of the outer wall of the fixing block (45) is provided with an oblique groove, and the outer wall of the triangular block (46) is in contact with the outer wall of the oblique groove.

6. The laminated precision mold according to claim 1, characterized in that: The inner mold core (5) is slidably connected to the inner wall of the lower mold (1); a clamping groove is provided on the outer side wall of the inner mold core (5); and the wedge block (43) is clamped with the inner wall of the clamping groove.

7. The laminated precision mold according to claim 2, characterized in that: One end of the limit spring (31) is fixedly connected to the outer side wall of the positioning block (32), and the other end of the limit spring (31) is fixedly connected to the inner wall at the top end of the lower mold (1).

8. The laminated precision mold according to claim 2, characterized in that: The positioning block (32) is slidably connected to the inner wall at the top end of the lower mold (1), the pull rod (33) passes through and is slidably connected to the inner wall at the top end of the lower mold (1), and a slot hole is provided on the inner wall at the bottom end of the upper mold (2), and the positioning block (32) is snap-fitted to the inner wall of the slot hole.

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