Die frame of precise cavity die

Abstract

The utility model discloses a mould frame of a precise cavity mould, which belongs to the technical field of mould frames and comprises a precise mould cavity formed by combining an upper mould body and a lower mould body, an upper plate body is fixed at the top of the upper mould body, a lower plate body is fixed at the bottom of the lower mould body, and an assembly groove is arranged at the bottom of the lower plate body. A through hole penetrating through the upper die body, the lower die body, the upper plate body and the lower plate body is formed in the bottom of the assembling groove, a supporting cylinder is fixed to the assembling groove through an assembling bolt, a bottom plate is fixed to the bottom of the supporting cylinder, a positioning assembly is fixed to the bottom of the bottom plate, and assembling holes used in cooperation with the assembling bolt are formed in the top of the assembling groove; according to the mold frame, the relative position of the upper mold body and the lower mold body can be maintained, displacement is avoided through pressure application, it is guaranteed that the positions between parts are stable and accurate, and the vertical cylinder body can further achieve the guiding effect and can also be used for fixing the upper mold body and the lower mold body after penetrating through the upper mold body and the lower mold body. And additional positioning and fixing capability is provided by triggering the clamping block.

Description

Technical Field

[0001] This utility model specifically relates to a mold frame for a precision cavity mold, belonging to the field of mold frame technology. Background Technology

[0002] Molds are tools used in industrial production to shape and manufacture products. The mold frame, as part of the mold, does not directly restrict the product, but it is an important component of the mold, providing the necessary support structure. For mold manufacturing, the cost of the mold frame accounts for a relatively high proportion. For the fixed support of some precision mold cavities, more stable external support is required. If there is any deviation, it will directly affect the product quality.

[0003] For example, Chinese utility model patent document CN213321348U discloses a precision cavity mold frame for injection molding, including a support plate. A fixed mold cavity is fixedly installed on the upper end of the support plate. A precision cavity body is movably installed on the upper end of the fixed mold cavity. A movable mold cavity is movably installed on the upper end of the precision cavity body. A cover plate is fixedly installed on the upper end of the movable mold cavity. A lower support plate is fixedly installed on the bottom end of the inner side of the left middle of the fixed mold cavity. An upper support plate is fixedly installed on the upper end of the lower support plate. Connecting rods are movably installed at the front and rear ends of the upper end of the upper support plate.

[0004] The above document uses positioning sleeves and positioning rods. When the mold is running, it works with air rods and cylinders to prevent misalignment between the fixed mold cavity, the precision cavity body and the moving mold cavity. However, the above method only uses the interlocking and docking between the components. If the precision cavity body is misaligned after placement, it cannot be restored. Therefore, the positioning effect of the above technical solution is limited and the effect of preventing misalignment is poor. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a mold frame for a precision cavity mold, so as to further position the upper and lower mold bodies and avoid displacement and misalignment.

[0006] A precision cavity mold frame includes a precision mold cavity composed of an upper mold body and a lower mold body. After the upper mold body and the lower mold body are joined, a molding cavity is formed inside. In use, conventional mold components such as cooling water channels, injection holes, and venting holes need to be added. An upper plate is fixed to the top of the upper mold body, and a lower plate is fixed to the bottom of the lower mold body. An assembly groove is provided at the bottom of the lower plate, and a through hole is provided at the bottom of the assembly groove, passing through the upper mold body, the lower mold body, the upper plate, and the lower plate. A support cylinder is fixed to the assembly groove by assembly bolts. A base plate is fixed to the bottom of the support cylinder. Ejector pins and some positioning pins can be fixed on the base plate to facilitate the use of the mold. A positioning component is fixed to the bottom of the base plate. The positioning component is used to assist in positioning the relative position of the upper mold body and the lower mold body. In actual use, the lower mold body can often be fixed with the lower plate to reduce displacement, while the upper mold body needs to open and close. Therefore, the error generally occurs in the upper mold body.

[0007] The top of the assembly groove is provided with an assembly hole for use with the assembly bolt, and the top edge of the support cylinder extends outward with a ring plate, which is embedded in the assembly groove.

[0008] The top of the upper plate has a fixing hole that extends into the upper mold body. A connecting bolt is installed in the fixing hole by means of a thread. The upper mold body is also fixed to the lower plate body by the connecting bolt in the same way.

[0009] A guide rod is fixed on the base plate. The guide rod passes through the lower mold body, the upper mold body, and the lower plate body, and the top end of the guide rod extends into the upper plate body.

[0010] The positioning assembly includes a cylinder body fixed to the bottom of the base plate, a piston plate slidably mounted inside the cylinder body, a vertical cylinder body fixed to one side of the piston plate, and the vertical cylinder body extending through the base plate and the support cylinder into the through hole.

[0011] The cylinder body has air pressure regulating ports at the bottom and top of its side wall. An adjusting telescopic rod is fixed at the bottom of the cylinder body. One end of the adjusting telescopic rod passes through the piston plate and extends into the vertical cylinder. The air pressure regulating ports are used to connect to an external adjustable air source. The vertical cylinder can play a certain guiding role.

[0012] The top of the vertical cylinder extends above the upper plate, and a triggering mechanism is provided inside the vertical cylinder.

[0013] The triggering mechanism includes a snap-fit ​​block rotatably mounted on the inner wall of the vertical cylinder. An adjustment groove is provided on the side wall of the snap-fit ​​block. An extension strip hole is provided on the outer wall of the vertical cylinder. The rotation axis of the snap-fit ​​block is located at the top. A trigger rod is fixed to the top of the adjusting telescopic rod. A crossbar is fixed to the top of the trigger rod. One end of the crossbar extends into the adjustment groove. A receiving seat is fixed to the upper surface of the upper plate. The triggering assembly is used to assist in fixing the position of the upper plate and the upper mold when needed.

[0014] The technical effects and advantages of this utility model are as follows: This mold frame can maintain the relative position of the upper mold body and the lower mold body, and avoid displacement by applying pressure, thereby ensuring the stable and accurate position between the components. While the vertical cylinder body plays a guiding role, it can also provide additional positioning and fixing capabilities by triggering the snap-fit ​​block after passing through the upper mold body and the lower mold body. In use, the upper mold body and the upper plate body are sleeved on the vertical cylinder body, and then the vertical cylinder body and the extension rod are extended. Then, the extension rod is retracted to make the trigger rod drive the horizontal bar to descend. The horizontal bar can push the snap-fit ​​block to rotate, so that the bottom of the snap-fit ​​block rotates out of the vertical cylinder body. At this time, retracting the vertical cylinder body can make the snap-fit ​​block press on the receiving seat body, which can achieve the functions of fixing and limiting and avoiding displacement. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model without the upper and lower mold bodies;

[0017] Figure 3 This is a schematic diagram of the positioning component structure of this utility model;

[0018] Figure 4 This is a cross-sectional view of the positioning component of this utility model;

[0019] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle;

[0020] Figure 6 This is a cross-sectional view of the triggering mechanism of this utility model.

[0021] In the diagram: 1. Upper mold body; 2. Lower mold body; 3. Upper plate body; 4. Lower plate body; 5. Support cylinder; 6. Base plate; 601. Guide rod; 7. Positioning assembly; 701. Cylinder body; 702. Piston plate; 703. Vertical cylinder body; 704. Adjustable telescopic rod; 8. Triggering mechanism; 801. Snap-fit ​​block; 802. Trigger rod; 803. Horizontal bar; 804. Support seat. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-6 As shown, a precision cavity mold frame includes a precision mold cavity composed of an upper mold body 1 and a lower mold body 2. After the upper mold body 1 and the lower mold body 2 are joined, a molding cavity is formed inside. In use, conventional mold components such as cooling water channels, injection holes, and venting holes need to be added. An upper plate 3 is fixed to the top of the upper mold body 1, and a lower plate 4 is fixed to the bottom of the lower mold body 2. An assembly groove is provided at the bottom of the lower plate 4, and a through hole is provided at the bottom of the assembly groove, passing through the upper mold body 1, the lower mold body 2, the upper plate 3, and the lower plate 4. A support cylinder 5 is fixed to the assembly groove by assembly bolts. A base plate 6 is fixed to the bottom of the support cylinder 5. The base plate 6 can fix ejector pins and some positioning pins to facilitate the use of the mold. A positioning component 7 is fixed to the bottom of the base plate 6 for auxiliary positioning. In actual use, the relative positions of the upper mold body 1 and the lower mold body 2 are such that the lower mold body 2 can be fixed to the lower plate 4 to reduce displacement, while the upper mold body 1 needs to open and close. Therefore, the error generally occurs on the upper mold body 1. The top of the assembly groove is provided with an assembly hole for the assembly bolt. The top edge of the support cylinder 5 extends outward with a ring plate, which is embedded in the assembly groove. The top of the upper plate 3 is provided with a fixing hole that extends into the upper mold body 1. A connecting bolt is installed in the fixing hole by means of a thread. The upper mold body 1 is also fixed to the lower plate 4 by the connecting bolt in the same way. A guide rod 601 is fixed on the bottom plate 6. The guide rod 601 passes through the lower mold body 2, the upper mold body 1 and the lower plate 4, and the top end of the guide rod 601 extends into the upper plate 3.

[0024] The positioning assembly 7 includes a cylinder body 701 fixed to the bottom of the base plate 6. A piston plate 702 is slidably installed inside the cylinder body 701. A vertical cylinder 703 is fixed to one side of the piston plate 702. The vertical cylinder 703 extends through the base plate 6 and the support cylinder 5 into the through hole. The bottom and top of the side wall of the cylinder body 701 are provided with air pressure regulating ports. An adjusting telescopic rod 704 is fixed to the bottom of the cylinder body 701. One end of the adjusting telescopic rod 704 extends through the piston plate 702 into the vertical cylinder 703. The air pressure regulating port is used to connect to an external adjustable air source. The vertical cylinder 703 can play a certain guiding role.

[0025] The top of the vertical cylinder 703 extends above the upper plate 3. A triggering mechanism 8 is provided inside the vertical cylinder 703. The triggering mechanism 8 includes a snap-fit ​​block 801 rotatably mounted on the inner wall of the vertical cylinder 703. An adjustment groove is provided on the side wall of the snap-fit ​​block 801. An extension strip hole is provided on the outer wall of the vertical cylinder 703. The rotation axis of the snap-fit ​​block 801 is located at the top. A triggering rod 802 is fixed to the top of the adjusting telescopic rod 704. A crossbar 803 is fixed to the top of the triggering rod 802. One end of the crossbar 803 extends into the adjustment groove. A receiving seat 804 is fixed to the upper surface of the upper plate 3. The triggering assembly is used to assist in fixing the position of the upper plate 3 and the upper mold 1 when needed.

[0026] This mold frame can maintain the relative positions of the upper mold body 1 and the lower mold body 2, and avoid displacement by applying pressure, thereby ensuring the stable and accurate positioning between the components. The vertical cylinder 703, while serving as a guide, also provides additional positioning and fixing capabilities after passing through the upper mold body 1 and the lower mold body 2 via the trigger latch block 801. In use, the upper mold body 1 and the upper plate 3 are fitted onto the vertical cylinder 703, then the vertical cylinder 703 and the extension adjusting rod 704 are extended, and then the extension adjusting rod 704 is retracted to cause the trigger rod 802 to... When the horizontal bar 803 descends, it can push the locking block 801 to rotate, causing the bottom of the locking block 801 to rotate outside the vertical cylinder 703. At this time, the retracting of the vertical cylinder 703 can press the locking block 801 onto the bearing seat 804, thus achieving the function of fixing and limiting and preventing displacement. When the reset function is required, the inner wall of the bearing seat 804 needs to be inclined so that it can gradually approach the bearing seat when the locking block 801 presses down. In this way, when there is a deviation, it can push the bearing seat to achieve the reset function.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mold frame for a precision cavity mold, comprising a precision mold cavity composed of an upper mold body (1) and a lower mold body (2), characterized in that: The top of the upper mold body (1) is fixed with an upper plate body (3), and the bottom of the lower mold body (2) is fixed with a lower plate body (4). The bottom of the lower plate body (4) is provided with an assembly groove. The bottom of the assembly groove is provided with a through hole that passes through the upper mold body (1), the lower mold body (2), the upper plate body (3), and the lower plate body (4). A support cylinder (5) is fixed to the assembly groove by assembly bolts. The bottom of the support cylinder (5) is fixed with a base plate (6), and the bottom of the base plate (6) is fixed with a positioning component (7).

2. The mold base of the precision cavity mold as described in claim 1, characterized in that: The top of the assembly groove is provided with an assembly hole for use with the assembly bolt, and the top edge of the support cylinder (5) extends outward with a ring plate, which is embedded in the assembly groove.

3. The mold base of the precision cavity mold as described in claim 1, characterized in that: The top of the upper plate (3) is provided with a fixing hole, which extends into the upper mold body (1), and a connecting bolt is installed in the fixing hole by means of a thread.

4. The mold base of the precision cavity mold as described in claim 1, characterized in that: A guide rod (601) is fixed on the base plate (6). The guide rod (601) passes through the lower mold body (2), the upper mold body (1) and the lower plate body (4). The top end of the guide rod (601) extends into the upper plate body (3).

5. The mold base of the precision cavity mold as described in claim 1, characterized in that: The positioning component (7) includes a cylinder body (701) fixed to the bottom of the base plate (6), a piston plate (702) is slidably installed inside the cylinder body (701), and a vertical cylinder body (703) is fixed to one side of the piston plate (702). The vertical cylinder body (703) extends through the base plate (6) and the support cylinder (5) into the through hole.

6. The mold base of the precision cavity mold as described in claim 5, characterized in that: The cylinder body (701) has air pressure regulating ports at the bottom and top of its side wall. An adjusting telescopic rod (704) is fixed at the bottom of the cylinder body (701). One end of the adjusting telescopic rod (704) passes through the piston plate (702) and extends into the vertical cylinder (703).

7. The mold base of the precision cavity mold as described in claim 6, characterized in that: The top of the vertical cylinder (703) extends above the upper plate (3), and a triggering mechanism (8) is provided inside the vertical cylinder (703).

8. The mold base of the precision cavity mold as described in claim 7, characterized in that: The triggering mechanism (8) includes a snap-fit ​​block (801) rotatably mounted on the inner wall of the vertical cylinder (703). An adjustment groove is provided on the side wall of the snap-fit ​​block (801). An extension strip hole is provided on the outer wall of the vertical cylinder (703). The rotation axis of the snap-fit ​​block (801) is located at the top. A trigger rod (802) is fixed to the top of the adjusting telescopic rod (704). A crossbar (803) is fixed to the top of the trigger rod (802). One end of the crossbar (803) extends into the adjustment groove. A receiving seat (804) is fixed to the upper surface of the upper plate (3).

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