A mold quick die changing mechanism

Abstract

The utility model relates to a die changing mechanism technical field, and disclose a kind of die quick die changing mechanism, the upper surface of base is equipped with lower die plate, the upper surface middle part of lower die plate is fixedly installed with lower mould, the upper surface of lower die plate is equipped with two positioning slots and is upwardly penetrated lower mould, the inner wall of positioning slot is vertically screw-threaded with telescopic link, the top end of telescopic link is vertically installed with stripping top block, stripping top block is compatible with the recess of lower mould, spring is externally equipped with telescopic link, the both ends of spring are respectively in the positioning slot of lower die plate and lower mould.

Description

Technical Field

[0001] This utility model relates to the technical field of mold changing mechanisms, specifically a mold quick mold changing mechanism. Background Technology

[0002] In the mold industry, molds are various dies and tools used in injection molding, blow molding, extrusion, die casting, forging, smelting, stamping, and other methods to obtain the desired products. In short, a mold is a tool used to create shaped objects; this tool is composed of various parts, and different molds are composed of different parts.

[0003] Application number CN202322772039.2 discloses a quick mold changing mechanism. This utility model includes a mold base, a mold cavity, and fasteners. A slot is provided on the right side of the mold base, and two tapered holes are formed on the inner wall of the slot. Two positioning tubes are provided on the left side of the mold base. The mold cavity is connected to the mold base via the slot. Two positioning pins are provided on the left side of the mold cavity. The fasteners include a T-shaped pin on the right side of the mold base and a rotating plate rotatably connected to the T-shaped pin. The tapered holes allow the positioning pins to be quickly inserted into the positioning tubes. After insertion, the mold cavity can be accurately installed in the slot. The rotating plate of the fastener can then be rotated until it is in the second groove of the mold cavity, where the mold cavity is fixed by the obstruction of the rotating plate. For disassembly, the rotating plate can be rotated until it no longer obstructs the mold cavity, and then the mold cavity can be directly pulled out for disassembly, facilitating quick mold changing.

[0004] The mechanism only uses a tapered hole to cooperate with the positioning post for positioning, lacking a continuous guiding structure. When the mold is working, it is prone to displacement under external force, affecting the molding accuracy. It relies on the blocking effect of the T-shaped post and the rotating plate to fix the mold cavity. Single-point force can easily cause uneven force on the mold cavity, which may loosen under stamping and other working conditions. The cooperation between the rotating plate and the second groove has no pre-tightening force, and it is prone to self-rotation under vibration environment, leading to fixation failure. Utility Model Content

[0005] The purpose of this invention is to provide a quick mold changing mechanism to solve the problem of insufficient fixation reliability during stamping.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a quick mold changing mechanism, comprising a hydraulic component and a positioning and demolding component. The hydraulic component is installed directly above the positioning and demolding component. The positioning and demolding component includes a base, and a lower template is provided on the upper surface of the base. A lower mold is fixedly installed in the middle of the upper surface of the lower template. Two positioning grooves are formed on the upper surface of the lower template and extend upward through the lower mold. A telescopic rod is vertically threaded onto the inner wall of the positioning groove. A demolding top block is vertically installed at the top of the telescopic rod. The demolding top block is adapted to the groove of the lower mold. A spring is sleeved on the outside of the telescopic rod, and the two ends of the spring are respectively located in the positioning grooves of the lower template and the lower mold.

[0008] The purpose of this setup is that, during the use of this mechanism, firstly, the operator places the material to be formed onto the forming area surface of the lower mold. In the initial state, the hydraulic component is located directly above the positioning and demolding component, the lower mold on the lower template is in the ready-to-work position, the telescopic rod in the positioning groove is at the initial height due to the natural extension and retraction of the spring, and the demolding top block is embedded in the groove of the lower mold and flush with the surface of the groove. At this time, the material is placed stably on the lower mold.

[0009] The hydraulic components start working, the hydraulic pump at the top of the top plate starts, outputs high-pressure hydraulic oil, drives the top plate to move downward along the guide column, and drives the forming mold fixed on the lower surface of the top plate to move towards the lower mold at the same time. Since the forming mold and the lower mold are aligned, when the bottom plate moves to the appropriate position, the forming mold and the lower mold close precisely. The material is sealed in the rectangular groove of the forming mold and the cavity formed by the lower mold. The forming process is completed under the action of the mold closing force generated by the hydraulic system.

[0010] After the material is compressed in the middle, the cylinder drives the bending hydraulic block to extend. Its working end extends to both sides of the bottom of the lower mold. The material is bent by the upward thrust. The telescopic rod in the positioning groove extends upward under the action of external driving force, compresses the spring sleeved on the outside, and pushes the demolding block at the top to push out from the groove of the lower mold, separating the bent workpiece from the lower mold and completing the demolding.

[0011] After demolding, the telescopic rod loses its driving force and retracts to its original position under the elastic restoring force of the spring. This causes the demolding top block to move downwards and back into the groove of the lower mold. The operator then removes the formed workpiece, repositions the material to be processed, and begins the next work cycle. Throughout the process, the positioning groove provides installation and guiding space for the telescopic rod and the spring, ensuring smooth telescopic rod movement and precise demolding top block movement. At the same time, the cooperation between the lower mold and the forming mold provides stable positioning support for material bending.

[0012] Furthermore, two sets of cylinders are provided opposite each other on the top two outer walls of the base, and bending hydraulic blocks are installed at the output end of the cylinders. The bending hydraulic blocks on both sides extend forward to the bottom two outer walls of the lower mold.

[0013] The purpose of this design is that during the use of this mechanism, when the forming mold presses the middle of the material, the cylinder starts, and the piston rod pushes the bending hydraulic block to extend to both sides of the bottom of the lower mold, applying an upward thrust to the end of the material to complete the bending. After bending, the cylinder retracts, driving the bending hydraulic block to reset, without interfering with subsequent processes.

[0014] Furthermore, guide posts are provided on the outer walls of the top two sides of the base, and a top plate is fixedly installed on the guide posts directly above the base.

[0015] The purpose of this design is that, during the operation of the mechanism, when the hydraulic pump drives the top plate up and down, the guide column provides guidance for the top plate, ensuring that it moves smoothly along the axis, so that the forming mold and the lower mold can be accurately closed, avoiding offset that affects bending accuracy, and at the same time protecting the mold components from collision.

[0016] Furthermore, a hydraulic pump is vertically installed on the top inner wall of the top plate, and a forming mold is fixedly connected to the lower surface of the top plate.

[0017] The purpose of this setup is that, during the operation of the mechanism, after the hydraulic pump starts, it converts electrical energy into hydraulic energy, outputs high-pressure oil to drive the top plate downward, and drives the forming mold and the lower mold to close and press the material. After forming, the hydraulic pump changes the oil direction, drives the top plate upward, and the forming mold opens to make room for demolding.

[0018] Furthermore, the forming mold is aligned with the lower template, and a rectangular groove is formed in the middle of the lower surface of the forming mold.

[0019] The purpose of this design is that, during the use of this mechanism, when the hydraulically driven forming mold descends and closes, the top of the lower mold is embedded in a rectangular groove to form a closed cavity, which presses and positions the middle of the material. The rectangular groove constrains the shape of the material, and together with the bending hydraulic block, ensures the bending and forming accuracy.

[0020] Furthermore, the top of the lower mold is adapted to the rectangular groove, and the forming mold maintains a certain distance from the bending hydraulic block.

[0021] The purpose of this design is to ensure that, during the use of this mechanism, the top of the lower mold matches the rectangular groove of the forming mold, and fits tightly when the mold is closed, ensuring that the cavity is sealed and the material can be stably formed. At the same time, the forming mold and the bending hydraulic block maintain a safe distance, which avoids collision between the forming mold and the bending hydraulic block when the forming mold moves, and ensures that the bending action is executed smoothly.

[0022] This utility model has the following beneficial effects:

[0023] (1) This utility model uses a demolding top block, a telescopic rod and a spring. The positioning groove provides precise guidance for the telescopic rod and the spring, ensuring stable movement of the demolding top block, avoiding demolding offset that could damage the workpiece, and improving demolding reliability. The spring automatically resets after demolding without the need for additional power, simplifying the structure and reducing energy consumption, and realizing continuous action of molding and demolding.

[0024] (2) With the setting of cylinder and bending hydraulic block, when the forming mold presses the middle of the material, the cylinder starts and the piston rod pushes the bending hydraulic block to extend to both sides of the bottom of the lower mold, applying an upward pushing force to the end of the material to complete the bending. After bending, the cylinder retracts and drives the bending hydraulic block to reset, without interfering with the subsequent process.

[0025] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0028] Figure 2 This is a schematic diagram of the main structure of the hydraulic component of this utility model;

[0029] Figure 3 This is a partial structural diagram of the positioning and demolding component of this utility model;

[0030] Figure 4 This is a schematic diagram of the main structure of the positioning and demolding component of this utility model;

[0031] The attached diagram lists the components represented by each number as follows:

[0032] In the diagram: 1. Hydraulic component; 101. Top plate; 102. Hydraulic pump; 103. Forming mold; 104. Rectangular groove; 2. Positioning and demolding component; 201. Base; 202. Guide pillar; 203. Lower template; 204. Positioning groove; 205. Lower mold; 206. Telescopic rod; 207. Demolding top block; 208. Spring; 209. Cylinder; 210. Bending hydraulic block. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0034] Please see Figures 1-4 As shown, this utility model is a quick mold changing mechanism, including a hydraulic component 1 and a positioning and demolding component 2. The hydraulic component 1 is installed directly above the positioning and demolding component 2. The positioning and demolding component 2 includes a base 201. A lower template 203 is provided on the upper surface of the base 201. A lower mold 205 is fixedly installed in the middle of the upper surface of the lower template 203. Two positioning grooves 204 are opened on the upper surface of the lower template 203 and extend upward through the lower mold 205. A telescopic rod 206 is vertically threaded on the inner wall of the positioning groove 204. A demolding top block 207 is vertically installed at the top of the telescopic rod 206. The demolding top block 207 is adapted to the groove of the lower mold 205. A spring 208 is sleeved on the outside of the telescopic rod 206. The two ends of the spring 208 are respectively located in the positioning grooves 204 of the lower template 203 and the lower mold 205.

[0035] The purpose of this setup is that, during the use of this mechanism, firstly, the operator places the material to be formed onto the forming area surface of the lower mold 205. In the initial state, the hydraulic component 1 is located directly above the positioning and demolding component 2, the lower mold 205 on the lower template 203 is in the ready-to-work position, the telescopic rod 206 in the positioning groove 204 is at the initial height due to the natural extension and retraction of the spring 208, and the demolding top block 207 is embedded in the groove of the lower mold 205 and flush with the surface of the groove. At this time, the material is stably placed on the lower mold 205.

[0036] When the hydraulic assembly 1 starts working, the hydraulic pump 102 at the top of the top plate 101 starts and outputs high-pressure hydraulic oil, driving the top plate 101 to move downward along the guide post 202. This causes the forming mold 103, which is fixed on the lower surface of the top plate 101, to move towards the lower mold 205 simultaneously. Since the forming mold 103 and the lower mold 203 are aligned, when the mold reaches the appropriate position, the forming mold 103 and the lower mold 205 precisely close. The material is enclosed in the cavity formed by the rectangular groove 104 of the forming mold 103 and the lower mold 205. The forming process is completed under the action of the closing force generated by the hydraulic system.

[0037] After the material is compressed in the middle, the cylinder 209 drives the bending hydraulic block 210 to extend, and its working end extends to both sides of the bottom of the lower mold 205. The material is bent by the upward thrust. The telescopic rod 206 in the positioning groove 204 extends upward under the action of the external driving force, compresses the spring 208 on the outside, and pushes the demolding block 207 at the top to push out from the groove of the lower mold 205, separating the bent workpiece from the lower mold 205 and completing the demolding.

[0038] After demolding, the telescopic rod 206 loses its driving force and retracts to its original position under the elastic restoring force of the spring 208. This causes the demolding top block 207 to move downwards and back into the groove of the lower mold 205. The operator then removes the molded workpiece, repositions the material to be processed, and begins the next work cycle. Throughout the process, the positioning groove 204 provides installation and guiding space for the telescopic rod 206 and the spring 208, ensuring smooth telescopic movement of the telescopic rod 206 and precise movement of the demolding top block 207. At the same time, the cooperation between the lower mold 205 and the forming mold 103 provides stable positioning support for bending the material.

[0039] Two sets of cylinders 209 are installed opposite each other on the top two outer walls of the base 201. The output end of the cylinder 209 is equipped with a bending hydraulic block 210. The two bending hydraulic blocks 210 extend forward to the bottom two outer walls of the lower mold 205 respectively.

[0040] The purpose of this design is that during the use of the mechanism, when the forming mold 103 presses the middle of the material, the cylinder 209 is activated, and the piston rod pushes the bending hydraulic block 210 to extend to both sides of the bottom of the lower mold 205, applying an upward pushing force to the end of the material to complete the bending. After bending, the cylinder 209 retracts, driving the bending hydraulic block 210 to reset, without interfering with subsequent processes.

[0041] Guide posts 202 are provided on the outer walls of the top two sides of the base 201, and a top plate 101 is fixedly installed on the guide posts 202 directly above the base 201.

[0042] The purpose of this design is that, during the use of the mechanism, when the hydraulic pump 102 drives the top plate 101 up and down, the guide column 202 provides guidance for the top plate 101, ensuring that it moves smoothly along the axis, so that the forming mold 103 and the lower mold 205 can be accurately closed, avoiding offset that affects bending accuracy, and protecting the mold components from collision.

[0043] A hydraulic pump 102 is vertically installed on the inner wall of the top plate 101, and a forming mold 103 is fixedly connected to the lower surface of the top plate 101.

[0044] The purpose of this setup is that, during the operation of the mechanism, after the hydraulic pump 102 starts, it converts electrical energy into hydraulic energy and outputs high-pressure oil to drive the top plate 101 downward, thereby driving the forming mold 103 and the lower mold 205 to close and press the material; after forming, the hydraulic pump 102 changes the oil direction, drives the top plate 101 upward, and the forming mold 103 opens to make room for demolding.

[0045] The forming mold 103 is aligned with the lower template 203, and a rectangular groove 104 is provided in the middle of the lower surface of the forming mold 103.

[0046] The purpose of this design is that, during the operation of this mechanism, when the hydraulically driven forming mold 103 descends and closes, the top of the lower mold 205 embeds into the rectangular groove 104, forming a closed cavity and pressing and positioning the middle of the material. The rectangular groove 104 constrains the shape of the material, and in conjunction with the bending hydraulic block 210, ensures bending and forming accuracy.

[0047] The top of the lower mold 205 is adapted to the rectangular groove 104, and the forming mold 103 maintains a certain distance from the bending hydraulic block 210.

[0048] The purpose of this design is to ensure that, during the use of this mechanism, the top of the lower mold 205 is adapted to the rectangular groove 104 of the forming mold 103, and fits tightly when the mold is closed, ensuring that the cavity is sealed and the material can be formed stably. At the same time, the forming mold 103 and the bending hydraulic block 210 maintain a safe distance, which not only avoids the forming mold 103 from colliding with the bending hydraulic block 210 when it moves, but also ensures that the bending action is executed smoothly.

[0049] In use, the top plate 101 is supported above the base 201 by the guide pillars 202. The forming mold 103 is separated from the lower mold 205. The telescopic rod 206 in the positioning groove 204 is in a retracted state. The demolding top block 207 is embedded in the groove of the lower mold 205. The cylinder 209 and the bending hydraulic block 210 are reset. The operator places the sheet / strip material to be processed on the lower template 203, so that the middle of the material rests on the forming area of ​​the lower mold 205, and the two ends extend to both sides of the lower mold 205.

[0050] The hydraulic pump 102 starts and outputs high-pressure hydraulic oil to drive the top plate 101 to move downward along the guide post 202, which in turn drives the forming mold 103 to move downward synchronously. Due to the guiding effect of the guide post 202, the forming mold 103 and the lower mold 203 are precisely aligned. Finally, the rectangular groove 104 of the forming mold 103 and the lower mold 205 close together, tightly pressing the middle of the material and completing the positioning, preparing for bending.

[0051] After the material is compressed in the middle, the cylinders 209 on both sides of the base 201 start synchronously. The output end pushes the bending hydraulic block 210 forward to both sides of the bottom of the lower mold 205. The bending hydraulic block 210 applies an upward thrust to both ends of the material, causing the material to bend upward along the side of the lower mold 205 to form a bending structure at a set angle. At this time, the forming mold 103 remains in the closed state, continuously providing positioning support for the middle of the material to ensure accurate bending angle.

[0052] After bending and forming is completed, the hydraulic pump 102 switches the hydraulic oil flow direction, drives the top plate 101 to move the forming mold 103 upward and reset, separating it from the lower mold 205. Subsequently, the telescopic rod 206 in the positioning groove 204 extends upward under the action of external driving force, compresses the spring 208 and pushes the demolding block 207 out, lifting the bent workpiece from the lower mold 205 to achieve demolding.

[0053] After demolding, the cylinder 209 retracts, causing the bending hydraulic block 210 to return to its initial position. The telescopic rod 206 retracts and resets under the elastic force of the spring 208, causing the demolding top block 207 to move downward and return to the groove of the lower mold 205. The operator takes out the formed workpiece, puts the material to be processed back in, and the mechanism returns to its initial state and enters the next work cycle, realizing continuous material bending processing and rapid mold change.

[0054] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A quick mold changing mechanism, comprising a hydraulic assembly (1) and a positioning and demolding assembly (2), characterized in that: The hydraulic component (1) is installed directly above the positioning and demolding component (2). The positioning and demolding component (2) includes a base (201). The upper surface of the base (201) is provided with a lower template (203). A lower mold (205) is fixedly installed in the middle of the upper surface of the lower template (203). Two positioning grooves (204) are opened on the upper surface of the lower template (203) and extend upward through the lower mold (205). A telescopic rod (206) is vertically threaded on the inner wall of the positioning groove (204). A demolding top block (207) is vertically installed at the top of the telescopic rod (206). The demolding top block (207) is adapted to the groove of the lower mold (205). A spring (208) is sleeved on the outside of the telescopic rod (206). The two ends of the spring (208) are respectively located in the positioning grooves (204) of the lower template (203) and the lower mold (205).

2. The quick mold changing mechanism according to claim 1, characterized in that: Two sets of cylinders (209) are provided opposite each other on the top two outer walls of the base (201). The output end of the cylinder (209) is equipped with a bending hydraulic block (210). The bending hydraulic blocks (210) on both sides extend forward to the bottom two outer walls of the telescopic rod (206).

3. The quick mold changing mechanism according to claim 2, characterized in that: The base (201) has guide posts (202) on the outer walls of its top two sides, and a top plate (101) is fixedly installed on the guide posts (202) directly above the base (201).

4. The quick mold changing mechanism according to claim 3, characterized in that: A hydraulic pump (102) is vertically installed on the top inner wall of the top plate (101), and a forming mold (103) is fixedly connected to the lower surface of the top plate (101).

5. A quick mold changing mechanism according to claim 4, characterized in that: The forming mold (103) is aligned with the lower template (203), and a rectangular groove (104) is provided in the middle of the lower surface of the forming mold (103).

6. A quick mold changing mechanism according to claim 5, characterized in that: The top of the lower mold (205) is adapted to the rectangular groove (104).

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