A mold fixing mechanism

Abstract

A mold fixing mechanism of the present application comprises a base, a support block, a reset pad block and a clamping pad block, the base is installed on a forming machine table, the support block is stacked on the base, a mold accommodating cavity is formed on the support block, the reset pad block is movably arranged in the upper end of the mold accommodating cavity, the clamping pad block is arranged in the mold accommodating cavity, the top surface of the reset pad block is fixedly provided with a lower block in the base, an upper block is stacked above the lower block, the upper block is movably arranged in the base in a transverse translation manner, a translation control member is arranged on the upper block, a pushing structure is arranged on the upper block and the lower block, and a restoring force generating mechanism is arranged on the reset pad block and the support block. Compared with the prior art, only the translation control member and the clamping pad block need to be operated to realize the fixing and dismounting of the mold, the operation is very simple and convenient, the positioning is fast, time and labor are saved, the mold will not be deviated during the positioning process, and the overall work efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of molding equipment, and in particular to a mold fixing mechanism. Background Technology

[0002] As is well known, most existing object processing uses molding machines. While the actions of each molding machine are largely the same, the main difference lies in the molding die. The different shapes of each object necessitate different molding dies for each molding machine, and these dies are fixedly attached to the molding machine. Thus, when the molding action is the same for different objects, molding machines cannot be used interchangeably, lacking versatility. To address this, some methods have disassembled the molding die from the molding machine, allowing for direct removal of the die when processing different objects, greatly optimizing resource utilization. However, existing die-fixing methods are cumbersome and prone to displacement during the fixing process, significantly reducing production efficiency.

[0003] In view of this, the inventor conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Summary of the Invention

[0004] The purpose of this invention is to provide a mold fixing mechanism that is easy to disassemble and replace, quick, time-saving, labor-saving, and simple to operate.

[0005] To achieve the above objectives, the solution of the present invention is as follows:

[0006] A mold fixing mechanism includes a base, a support block, a reset pad, and a clamping pad. The base is mounted on a molding machine platform. The support block is stacked on the side of the base facing away from the molding machine platform and is fixedly engaged with the base. With the side of the support block on the base as the bottom, a mold receiving cavity is formed on the support block, penetrating both horizontally and vertically. A limiting ring protrudes from the lower end of the mold receiving cavity to prevent the mold from falling out of the mold receiving cavity. The reset pad is positioned within the upper end of the mold receiving cavity, allowing it to move vertically. The clamping pad is located within the mold receiving cavity and is movably stacked on the bottom of the reset pad. On the surface, a receiving gap is formed between the clamping pad and the limiting ring for a partial portion of the mold to be received. A lower block is fixed on the top surface of the reset pad and is located in the base. An upper block is stacked on top of the lower block. The upper block is movable in the base in a manner that allows it to be laterally translated within the base. The upper block is provided with a translation control component whose operating end is exposed outside the base and controls the lateral translation of the upper block. The upper block and the lower block are provided with a pushing structure that pushes the lower block to move up and down as the upper block is laterally translated. The reset pad and the support block are provided with a restoring force generating mechanism that generates an elastic restoring force as the reset pad moves.

[0007] Both the reset pad and the clamping pad are square plates. The upper block is movable within the base in a way that allows it to move back and forth. The width of the reset pad in the left and right direction is greater than the width of the clamping pad in the left and right direction. The reset pad is provided with the restoring force generating mechanism on both the left and right sides of its bottom surface. The restoring force generating mechanism is located outside the clamping pad.

[0008] The aforementioned mold accommodating chamber has an expanding diameter chamber and a reducing diameter chamber located below the expanding diameter chamber. The aforementioned reset pad is located in the aforementioned expanding diameter chamber and is in contact with the lower bottom surface of the base. The aforementioned clamping pad extends movably into the aforementioned reducing diameter chamber, and the aforementioned limiting ring is provided at the lower end port of the reducing diameter chamber. The aforementioned restoring force generating mechanism is located in the expanding diameter chamber.

[0009] The restoring force generating mechanism is a spring. The spring is set vertically, and the upper end of the spring abuts against the bottom surface of the reset pad. The cavity wall of the expansion chamber is recessed downward to form a mounting cavity below the expansion chamber, and the lower end of the spring extends into the mounting cavity.

[0010] The aforementioned support block has a left support block and a right support block. The left and right support blocks are strip-shaped blocks extending along the front-back direction of the base. The left and right support blocks are arranged laterally opposite each other and are installed on the bottom surface of the base by screws. The distance between the left and right support blocks constitutes the reduced-diameter chamber. The lower end of the right side of the left support block and the lower end of the left side of the right support block are both provided with strip-shaped protrusions extending along the front-back direction. The two strip-shaped protrusions constitute the limiting ring. The lower end of the right side of the left support block and the lower end of the left side of the right support block are both provided with accommodating recesses extending outward to the bottom surface of the support block. The space enclosed by the two accommodating recesses constitutes the expanded-diameter chamber. The left end of the reset pad is located in the left accommodating recess, and the right end of the reset pad is located in the right accommodating recess. The clamping pad falls between the left and right support blocks. The left and right support blocks are both provided with the aforementioned mounting recesses.

[0011] The base has a mounting chamber extending vertically through the middle. The mounting chamber has an upper expanding chamber and a lower contracting chamber. The length of the upper expanding chamber in the front-to-back direction is greater than that of the lower contracting chamber in the front-to-back direction. The lower block is fitted into the lower contracting chamber. The upper block and the lower block overlap. The front and rear ends of the upper block have a moving distance between them and the front and rear walls of the expanding chamber, respectively, allowing the upper block to move back and forth. The top surface of the lower block is an upwardly inclined surface that slopes downward from front to back. The bottom surface of the upper block is a downwardly inclined surface that overlaps with the upwardly inclined surface. The upwardly inclined surface and the downwardly inclined surface constitute the aforementioned pushing structure.

[0012] The aforementioned translation control component is a locking screw, which is horizontally arranged in the front-to-back direction. The locking screw has a head and a rod portion located on the right side of the head. The head is pressed against the front cavity wall of the expansion chamber, and the free end of the rod portion is pressed against the rear cavity wall of the expansion chamber. The rod portion passes through the aforementioned upper block and is screwed into the upper block. The front side of the aforementioned upper block has a head recess at the head location for the head to be accommodated. The left side of the aforementioned head has a blind hole for the workpiece to extend into and drive the locking screw to rotate. The front side of the aforementioned base has an insertion hole corresponding to the blind hole.

[0013] After adopting the above technical solution, the mold fixing mechanism of the present invention, when applied, moves the non-forming end of the mold into the mold receiving cavity through the transverse opening of the mold receiving cavity, and the forming end of the mold extends downward out of the support block through the longitudinal opening of the mold receiving cavity. The mold is then restricted in the mold forming cavity by the limiting ring. After that, the clamping pad is inserted into the mold receiving cavity and overlaps with the mold. Finally, the translation control component controls the upper block to translate. The translation of the upper block causes the lower block to move down. The downward movement of the lower block causes the reset pad to move down and move down together with the clamping pad. Finally, the non-forming end of the mold is clamped between the clamping pad and the limiting ring, so that the mold is fixed and installed. Conversely, the upper block is reset and moved back, and the lower block is restored by the restoring force generated by the restoring force mechanism and moves upward and reset. At this time, the clamping pad is released and can be easily pulled out of the mold receiving cavity. The removal of the clamping pad allows the mold to be easily moved out from the transverse opening of the mold receiving cavity. Compared with existing technologies, the mold fixing mechanism of this patent has a simple structure. During assembly and disassembly, only the translation control component and the plug-in clamping pad need to be operated to fix and disassemble the mold. The operation is very simple and convenient, and the positioning is quick. The whole operation saves time and effort, and the mold will not shift during the positioning process, which greatly improves the overall work efficiency. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the present invention;

[0015] Figure 2 This is another cross-sectional view of the present invention. Detailed Implementation

[0016] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0017] A mold fixing mechanism of the present invention, such as Figure 1 , 2As shown, the system includes a base 1, a support block 2, a reset pad 3, and a clamping pad 4. The base 1 is mounted on the molding machine platform 100. The support block 2 is stacked on the side of the base facing away from the molding machine platform and is fixedly engaged with the base. With the side of the support block 2 on the base as the bottom, the base 1 is locked to the bottom surface of the molding machine platform 100. The support block 2 is locked to the base 1 by screws. The support block has a mold receiving cavity that extends through the support block in both the horizontal and vertical directions. That is, a receiving groove is provided in the central area of ​​the support block. This receiving groove extends through the left and right sides and the top and bottom sides of the support block. This receiving groove is the mold receiving cavity.

[0018] A limiting ring 200 protrudes from the lower end of the mold receiving chamber to prevent the mold from falling out of the mold receiving chamber. The reset pad 3 is located in the upper end of the mold receiving chamber in a way that allows it to move up and down. The clamping pad 4 is located in the mold receiving chamber and is movably stacked on the bottom surface of the reset pad 3. A receiving gap is formed between the clamping pad 4 and the limiting ring 200 to accommodate a partial part of the mold 300. A lower block 5 located in the base 1 is fixed on the top surface of the reset pad 3. An upper block 6 is stacked on top of the lower block 5 and can move laterally on the base. The upper block 6, located within the base 1, has an operating end exposed outside the base, which controls the lateral movement of the upper block. Both the upper and lower blocks have a pushing structure that drives the lower block downwards as the upper block moves. The reset pad and the aforementioned support block have a restoring force generating mechanism that generates an elastic restoring force as the reset pad moves downwards. Preferably, the reset pad 3 and clamping pad 4 are both square plates, the base 1 is a square block, and a mounting chamber extending vertically through the center of the base 1 is provided. The mounting chamber has an upper expanding chamber and a lower contracting chamber. The expanding chamber is located above the contracting chamber. The longitudinal length of the expanding chamber is greater than that of the contracting chamber. The lower block 5 is fitted into the contracting chamber. The front and rear ends of the upper block 6 have a sliding distance between them and the front and rear walls of the expanding chamber, allowing for the upper block to move back and forth. That is, the upper block 6 overlaps with the lower block 5, and the longitudinal length of the upper block 6 is equal to that of the lower block 5. The expanding chamber is larger than the contracting chamber, meaning there is a distance between the front outer wall of the upper block 6 and the front inner chamber of the expanding chamber. The upper block 6 has a gap between its rear outer wall and the rear inner wall of the expansion chamber. The two gaps are the moving gaps, so that the upper block 6 can move backward and forward in the expansion chamber. The top surface of the lower block 5 is an upward inclined surface that slopes downward from front to back, and the bottom surface of the upper block 6 is a downward inclined surface that overlaps with the upward inclined surface. The upward and downward inclined surfaces constitute the pushing structure. That is, the front thickness of the lower block 5 is greater than the rear thickness of the lower block 5, and the front thickness of the upper block 6 is less than the rear thickness of the upper block 6. The upper block 6 and the lower block 5 are stacked to form a square block.

[0019] The translation control component is a locking screw 7, which is horizontally positioned along the front-to-back direction. The locking screw 7 has a head and a rod located to the right of the head. The head presses against the front inner wall of the expansion chamber, and the free end of the rod presses against the rear inner wall of the expansion chamber. This means the locking screw 7 cannot move up and down within the expansion chamber, only rotates. The rod passes through the upper block 6 and is screwed into it. A central through-hole is formed in the central area of ​​the upper block 6, and the rod passes through this hole. The central through-hole has an internal thread, and the outer wall of the rod has an external thread. The screwing of the internal and external threads enables the locking screw 7 to be screwed into the upper block 6. The front side of the upper block 6 is recessed at the head. A head recess 61 is provided to accommodate the head. This head recess 61 prevents the head of the locking screw 7 from occupying the translation space of the upper block 6, thus eliminating the need to enlarge the size of the base 1. The left side of the head is recessed with a blind hole for the workpiece to be inserted and rotate the locking screw. This blind hole is preferably an internal hexagonal hole. The front side of the base 1 is provided with an insertion hole 11 corresponding to the blind hole. In use, the operating end of the locking tool is inserted into the blind hole through the insertion hole 11 to rotate the locking screw 7. Since the locking screw 7 is clamped in the enlarged cavity, the locking screw 7 can only be operated automatically. The upper block 6 is screwed into the locking screw 7, and the rotation of the locking screw 7 causes the upper block 6 to translate back and forth along the locking screw 7.

[0020] The restoring force generating mechanism is a spring 8, which is set vertically. The size of the reset pad 3 is larger than that of the clamping pad 4. The spring 8 is set vertically on the bottom surface of the reset pad 3 and outside the clamping pad 4. The support block 2 is located at the spring 8 and has a recessed mounting recess for accommodating the spring. The upper end of the spring 8 presses against the lower bottom surface of the reset pad 3, and the lower end of the spring 8 extends into the mounting recess and presses against the bottom of the mounting recess.

[0021] In this invention, a mold fixing mechanism is initially positioned such that the front end of the upper block 6 is stacked on the rear end of the lower block 5, the rear end of the upper block 6 abuts against the rear side wall of the upper expansion chamber, the reset pad 3 is in contact with the lower bottom surface of the base 1, and the spring 8 supports the reset pad 3. The upper and lower blocks are clamped between the reset pad and the lower bottom surface of the machine base. During installation, the mold 300 is slid into the mold receiving chamber of the support base 2 through the opening on the left or right side of the support base 2. When the non-forming end of the mold 300 is inside the mold receiving cavity, the forming end of the mold 300 extends out of the support base 2 through the lower opening, while the non-forming end of the mold 300 is lowered due to the influence of the limiting ring; at this time, there is a gap between the composite pad 3 and the upper end of the mold 300, and the clamping pad 4 is inserted into this gap through the left or right opening of the mold receiving cavity, so that the clamping pad 4 is between the mold 300 and the reset pad 3; after insertion, the auxiliary tool tightens the locking screw. 7. Rotating the locking screw 7 causes the upper block 6 to move forward. Since the upper and lower blocks are clamped between the reset pad and the machine base, the forward movement of the upper block forces the lower block 5 to move downward. The downward movement of the lower block 5 causes the reset pad 3 to move downward as well, compressing the spring 8. The downward movement of the reset pad 3 causes the clamping pad 4 to move downward and fit tightly against the upper end face of the mold 300. At this time, the non-forming end of the mold 300 is clamped between the clamping pad 4 and the limiting ring 200, thereby fixing the mold 300. Conversely, rotating the locking screw 7 in the opposite direction causes the upper block 6 to move backward and return to its original position. The backward movement of the upper block releases the spring 8, and the spring 8 returns to its original position, pushing the clamping pad, the reset pad, and the lower block to their original positions. The clamping pad and the reset pad form a gap, at which point the clamping pad can be quickly removed from the mold cavity. At this time, the mold 300 has a free position in the vertical direction in the mold cavity, so the mold 300 can easily slide out from the support base to the left and right. Compared with existing technologies, when disassembling and assembling the mold, simply inserting and removing the clamping pad and then turning the locking screw is sufficient to disassemble and assemble the mold. The operation is simple and convenient, enabling the mold to be quickly positioned, saving time and effort. During the entire operation, the upper and lower blocks have a large contact area, allowing the lower block to move very smoothly without contacting the mold. This ensures that the mold will not shift during the rotation of the locking screw, guaranteeing the stability of the mold installation. There is no need to adjust the mold position, which greatly improves the efficiency of mold disassembly and assembly. In addition, the entire structure is simple, and the parts are designed for easy disassembly and assembly, facilitating maintenance.

[0022] Preferably, the support block 2 has a left support block 21 and a right support block 22. The left support block 21 and the right support block 22 are strip-shaped blocks extending along the front-back direction of the base. The left support block 21 and the right support block 22 are arranged laterally opposite each other, and the left support block 21 and the right support block 22 are respectively installed on the bottom surface of the base 1 by screws. The distance between the left support block 21 and the right support block 22 is the aforementioned reduced-diameter chamber. The lower end of the right side surface of the left support block 21 and the lower end of the left side surface of the right support block are both provided with strip-shaped protrusions extending along the front-back direction. Two convex strips form the limiting ring. The lower right side of the left support block 21 and the lower left side of the right support block 22 are both recessed outwards to the bottom surface of the support block. The space enclosed by the two recesses is the enlarged cavity. The left end of the reset pad is located in the left recess and the right end is located in the right recess. The clamping pad falls between the left and right support blocks. The two-piece structure of the support blocks can clamp and fix molds of different sizes, which is highly versatile and convenient for mold installation.

[0023] The above embodiments and accompanying drawings are not intended to limit the structure of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A mold fixing mechanism, characterized in that: The system includes a base, a support block, a reset pad, and a clamping pad. The base is mounted on the molding machine platform. The support block is stacked on the side of the base facing away from the molding machine platform and is fixedly fitted to the base. The support block has a mold receiving cavity that extends horizontally and vertically through it. A limiting ring protrudes from the lower end of the mold receiving cavity to prevent the mold from falling out of the cavity. The reset pad is positioned within the upper part of the mold receiving cavity, allowing it to move vertically. The clamping pad is located within the mold receiving cavity and is movably stacked on the bottom surface of the reset pad. The clamping pad and the limiting ring... A receiving gap is formed between the rings for accommodating a partial portion of the mold. A lower block is fixed on the top surface of the reset pad and is located in the base. An upper block is stacked on top of the lower block. The upper block is movable in the base in a manner that allows it to be laterally translated within the base. The upper block is provided with a translation control component whose operating end is exposed outside the base and controls the lateral translation of the upper block. The upper block and the lower block are provided with a pushing structure that pushes the lower block to move up and down as the upper block is laterally translated. The reset pad and the support block are provided with a restoring force generating mechanism that generates an elastic restoring force as the reset pad moves. The mold accommodating chamber has an expanding diameter chamber and a reducing diameter chamber located below the expanding diameter chamber. The reset pad is located in the expanding diameter chamber and is in contact with the bottom surface of the base. The clamping pad extends movably into the reducing diameter chamber, and the lower end port of the reducing diameter chamber is provided with the limiting ring. The restoring force generating mechanism is located in the expanding diameter chamber. The base has an installation chamber that extends vertically through the base. The installation chamber has an upper expansion chamber and a lower contraction chamber. The length of the upper expansion chamber in the front-to-back direction is greater than that of the lower contraction chamber in the front-to-back direction. The lower block is fitted into the lower contraction chamber. The upper block and the lower block overlap. The front and rear ends of the upper block have a moving distance between them and the front and rear walls of the upper expansion chamber, respectively, allowing the upper block to move back and forth. The top surface of the lower block is an upwardly inclined surface that slopes downward from front to back. The bottom surface of the upper block is a downwardly inclined surface that overlaps with the upwardly inclined surface. The upwardly inclined surface and the downwardly inclined surface constitute the pushing structure. The aforementioned translation control component is a locking screw, which is horizontally arranged in the front-to-back direction. The locking screw has a head and a rod portion located on the right side of the head. The head is pressed against the front cavity wall of the upper expansion chamber, and the free end of the rod portion is pressed against the rear cavity wall of the upper expansion chamber. The rod portion passes through the upper block and is screwed into the upper block. The front side of the upper block has a head recess at the head for the head to be accommodated. The left side of the head has a blind hole for the workpiece to extend into and drive the locking screw to rotate. The front side of the base has an insertion hole corresponding to the blind hole.

2. The mold fixing mechanism according to claim 1, characterized in that: Both the reset pad and the clamping pad are square plates. The upper block is movable within the base in a way that allows it to move back and forth. The width of the reset pad in the left and right direction is greater than the width of the clamping pad in the left and right direction. The reset pad is provided with the restoring force generating mechanism on both the left and right sides of its bottom surface. The restoring force generating mechanism is located outside the clamping pad.

3. The mold fixing mechanism according to claim 1, characterized in that: The restoring force generating mechanism is a spring. The spring is set vertically, and the upper end of the spring abuts against the bottom surface of the reset pad. The cavity wall of the expansion chamber is recessed downward to form a mounting cavity below the expansion chamber, and the lower end of the spring extends into the mounting cavity.

4. The mold fixing mechanism according to claim 3, characterized in that: The aforementioned support block has a left support block and a right support block. The left and right support blocks are strip-shaped blocks extending along the front-back direction of the base. The left and right support blocks are arranged laterally opposite each other and are installed on the bottom surface of the base by screws. The distance between the left and right support blocks constitutes the reduced-diameter chamber. The lower end of the right side face of the left support block and the lower end of the left side face of the right support block are both provided with strip-shaped protrusions extending along the front-back direction. The two strip-shaped protrusions constitute the limiting ring. The upper end of the right side face of the left support block and the upper end of the left side face of the right support block are both recessed outwards to the top surface of the support block. The space enclosed by the two recesses constitutes the expanded-diameter chamber. The left end of the reset pad is located in the left recess, and the right end of the reset pad is located in the right recess. The clamping pad falls between the left and right support blocks. The left and right support blocks are both provided with the aforementioned mounting cavities.

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