Clamping structure for mold injection molding

Abstract

The utility model relates to the field of mold injection molding, and discloses a clamping structure for mold injection molding, the clamping structure comprises two mounting seats, an injection mold is arranged between the two mounting seats, the injection mold comprises a lower mold and an upper mold, and mounting grooves are formed in the sides, close to each other, of the two mounting seats; fixing seats are fixedly mounted on the inner walls of the sides, away from each other, of the two mounting grooves correspondingly, connecting seats are fixedly mounted on the sides, away from each other, of the lower die and the upper die correspondingly, the sides, away from each other, of the two connecting seats are attached to the sides, close to each other, of the two fixing seats correspondingly, and clamping assemblies are arranged on the two mounting seats correspondingly; and the two clamping assemblies are used for locking and fixing the lower die and the upper die on the corresponding mounting seats respectively. The injection mold fixing device has the following advantages and effects that the injection mold can be conveniently disassembled and assembled, a bolt and nut fixing mode is effectively replaced, fixing is firm and stable, operation is easy, labor is saved, and the working efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of mold injection molding, and particularly relates to a clamping structure for mold injection molding. Background Art

[0002] Mold injection molding is a method of producing plastic products of various shapes by using a molding die to process thermoplastic or thermosetting materials. During the mold injection molding process, a clamping structure is required to fix the mold to ensure the stability and reliability of the mold during the injection molding process.

[0003] By referring to a clamping structure for mold injection molding disclosed in the authorized announcement number CN218342690U, it is known that this patent points out the prior art problems of "the existing clamping structures for mold injection molding are mostly fixed in the form of bolts and nuts, which will become loose after long-term use, are unstable in use, and this method is cumbersome and troublesome during disassembly and assembly, and the disassembly and assembly efficiency is low". The present utility model provides another solution to solve the above problems. Summary of the Utility Model

[0004] The purpose of this application is to provide a clamping structure for mold injection molding, which has the effects of being able to conveniently disassemble and assemble the injection mold, effectively replacing the fixed form of bolts and nuts, being firmly fixed and stable, having simple and labor-saving operation, and improving work efficiency.

[0005] The above technical purpose of this application is achieved through the following technical solutions: A clamping structure for mold injection molding includes two mounting seats. An injection mold is arranged between the two mounting seats. The injection mold includes a lower mold and an upper mold. Mounting grooves are formed on one side of the two mounting seats close to each other. Fixed seats are fixedly installed on the inner walls of the two mounting grooves on the side far from each other. Connecting seats are fixedly installed on the sides of the lower mold and the upper mold far from each other. The sides of the two connecting seats far from each other are respectively attached to the sides of the two fixed seats close to each other. Clamping components are arranged on both mounting seats. The two clamping components are used to lock and fix the lower mold and the upper mold on the corresponding mounting seats respectively.

[0006] A further setting of the present application is that the clamping assembly includes a shaft seat, a first screw, a drive shaft, a second screw, two moving plates, two locking blocks and a motor. The shaft seat is fixedly installed on one inner wall of the installation groove. The first screw is rotatably installed on the shaft seat. A transverse hole is opened on the inner wall of the installation groove away from the shaft seat. The drive shaft is rotatably installed in the transverse hole through a bearing. One end of the drive shaft extends into the transverse hole. The second screw is fixedly installed at one end of the drive shaft located in the installation groove. One ends of the first screw and the second screw close to each other are fixedly connected. The thread directions of the first screw and the second screw are opposite. The two moving plates are respectively threadedly sleeved on the first screw and the second screw, and the two moving plates are symmetrically distributed on both sides of the connecting seat. The two locking blocks are respectively fixedly installed on one side of the two moving plates close to each other. Card slots are opened on both sides of the connecting seat. The two locking blocks are respectively slidably installed in the corresponding card slots. The motor is fixedly installed on the outer side wall of the mounting seat. The output shaft end of the motor extends into the transverse hole and is fixedly connected to one end of the second screw.

[0007] A further setting of the present application is that the cross-sectional dimensions of the fixed seat are the same as those of the connecting seat.

[0008] A further setting of the present application is that an avoidance hole is opened on one side of the fixed seat, and one ends of the first screw and the second screw close to each other are both located in the avoidance hole.

[0009] A further setting of the present application is that a positioning post is fixedly installed on one side of the fixed seat close to the connecting seat, and a positioning groove is opened on one side of the connecting seat close to the fixed seat. The positioning post is slidably installed in the positioning groove.

[0010] A further setting of the present application is that a guiding post is fixedly installed on the top of the mounting seat located below. A receiving groove is opened at the top end of the guiding post. A telescopic rod is fixedly installed on the bottom of the mounting seat located above. The bottom end of the telescopic rod is slidably installed in the receiving groove.

[0011] A further setting of the present application is that a U-shaped assembly frame is fixedly installed on the top of the mounting seat located above. A plurality of uniformly distributed assembly holes are opened on the U-shaped assembly frame.

[0012] A further setting of the present application is that the front and rear side walls of the moving plate are respectively in sliding contact with the front and rear inner walls of the installation groove.

[0013] The present application includes at least one of the following beneficial technical effects:

[0014] 1. The present application uses a clamping assembly composed of a shaft seat, a first screw, a drive shaft, a second screw, two moving plates, two locking blocks, and a motor. Under the combined action of two sets of clamping assemblies, it is convenient to firmly and stably clamp and fix the lower mold on the lower mounting seat, and also convenient to firmly and stably clamp and fix the upper mold on the upper mounting seat. It is also easy to quickly disassemble and remove the lower mold from the lower mounting seat, and it is also easy to quickly disassemble and remove the upper mold from the upper mounting seat. Thus, the effect of convenient disassembly and assembly of the injection mold is achieved, effectively replacing the fixing form of bolts and nuts. The fixing is firm and stable, the operation is simple and labor-saving, and the work efficiency is improved.

[0015] 2. The present application uses a U-shaped mounting frame to conveniently assemble and fix the end of the output shaft of a hydraulic cylinder or a pneumatic cylinder on the upper mounting seat, so as to facilitate the vertical lifting of the upper mounting seat and the upper mold, and achieve the function of closing or demolding the upper mold and the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of this embodiment.

[0017] Figure 2 is a front view sectional structural schematic diagram of this embodiment.

[0018] Figure 3 is Figure 2 an enlarged structural schematic diagram of part A in

[0019] In the figure, 1. Mounting seat; 2. Injection mold; 3. Installation groove; 4. Fixed seat; 5. Connection seat; 6. Shaft seat; 7. First screw; 8. Horizontal hole; 9. Drive shaft; 10. Second screw; 11. Moving plate; 12. Locking block; 13. Card slot; 14. Motor; 15. Avoidance hole; 16. Positioning column; 17. Positioning groove; 18. Guide column; 19. Telescopic rod; 20. U-shaped mounting frame; 21. Lower mold; 22. Upper mold. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts belong to the scope of protection of the present application.

[0021] See Figure 1 、 Figure 2 and Figure 3 , the present application provides a clamping structure for mold injection, including two mounting seats 1, and an injection mold 2 is arranged between the two mounting seats 1, wherein:

[0022] The injection mold 2 includes a lower mold 21 and an upper mold 22. On one side of each of the two mounting seats 1 close to each other, a mounting groove 3 is provided. On the inner walls of the two mounting grooves 3 on the side far from each other, a fixed seat 4 is fixedly installed. On the side of the lower mold 21 and the upper mold 22 far from each other, a connecting seat 5 is fixedly installed. The sides of the two connecting seats 5 far from each other are respectively in contact with the sides of the two fixed seats 4 close to each other. The cross-sectional dimensions of the fixed seat 4 and the connecting seat 5 are set to be the same to ensure the stability of the connection. Clamping assemblies are provided on both of the two mounting seats 1. The two clamping assemblies are used to lock and fix the lower mold 21 and the upper mold 22 to the corresponding mounting seats 1 respectively. The clamping assembly includes a shaft seat 6, a first screw 7, a driving shaft 9, a second screw 10, two moving plates 11, two locking blocks 12 and a motor 14. The shaft seat 6 is fixedly installed on the inner wall of one side of the mounting groove 3. The first screw 7 is rotatably installed on the shaft seat 6. A transverse hole 8 is provided on the inner wall of the mounting groove 3 far from the shaft seat 6. The driving shaft 9 is rotatably installed in the transverse hole 8 through a bearing. One end of the driving shaft 9 extends into the transverse hole 8. The second screw 10 is fixedly installed at the end of the driving shaft 9 located in the mounting groove 3. The ends of the first screw 7 and the second screw 10 close to each other are fixedly connected. The thread directions of the first screw 7 and the second screw 10 are set to be opposite. The two moving plates 11 are respectively threadedly sleeved on the first screw 7 and the second screw 10, and the two moving plates 11 are symmetrically distributed on both sides of the connecting seat 5. The two locking blocks 12 are respectively fixedly installed on the sides of the two moving plates 11 close to each other. Slots 13 are provided on both sides of the connecting seat 5. The two locking blocks 12 are respectively slidably installed in the corresponding slots 13. By using the insertion fit of the two locking blocks 12 with the corresponding slots 13, the connecting seat 5 can be locked and fixed to the fixed seat 4. Furthermore, the lower mold 21 can be firmly and stably clamped and fixed on the lower mounting seat 1, and the upper mold 22 can also be firmly and stably clamped and fixed on the upper mounting seat 1. By setting the thread directions of the first screw 7 and the second screw 10 to be opposite, when the first screw 7 and the second screw 10 rotate synchronously in the same direction, it can be ensured that the two moving plates 11 gradually approach or gradually move away, and thus the distance between the two locking blocks 12 can be adjusted. The motor 14 is fixedly installed on the outer side wall of the mounting seat 1. The output shaft end of the motor 14 extends into the transverse hole 8 and is fixedly connected to one end of the second screw 10. The motor 14 is used to control the rotation of the driving shaft 9. Furthermore, through the rotation of the driving shaft 9, the first screw 7 and the second screw 10 can be driven to rotate synchronously in the same direction.

[0023] In this embodiment, it should be supplemented and explained that the motor 14 is a reversible motor obtained by purchasing in the market. The motor 14 is configured with a power supply, and its circuit connection method and control method belong to the mature technologies in this field and are fully disclosed, so no further description will be made in this article.

[0024] In this embodiment, in order to prevent the fixed seat 4 from hindering the rotation of the first screw 7 and the second screw 10, an avoidance hole 15 is provided on one side of the fixed seat 4. The ends of the first screw 7 and the second screw 10 that are close to each other are both located in the avoidance hole 15. The aperture size of the avoidance hole 15 is larger than the diameter sizes of the first screw 7 and the second screw 10, and the diameter sizes of the first screw 7 and the second screw 10 are the same.

[0025] In this embodiment, in order to ensure the accurate positioning of the connecting seat 5 on the fixed seat 4, a positioning post 16 is fixedly installed on the side of the fixed seat 4 close to the connecting seat 5. A positioning groove 17 is provided on the side of the connecting seat 5 close to the fixed seat 4. The positioning post 16 is slidably installed in the positioning groove 17.

[0026] In this embodiment, in order to ensure the stability and accuracy when the upper mold 22 is closed or demolded with the lower mold 21, a guiding post 18 is fixedly installed on the top of the lower mounting seat 1. A receiving groove is provided at the top end of the guiding post 18. A telescopic rod 19 is fixedly installed at the bottom of the upper mounting seat 1. The bottom end of the telescopic rod 19 is slidably installed in the receiving groove. Among them, the guiding post 18 and the telescopic rod 19 can be provided in two groups and are distributed on both sides of the injection mold 2 to further improve the stability and accuracy when the upper mold 22 is closed or demolded with the lower mold 21.

[0027] In this embodiment, in order to facilitate the assembly and fixation of the end of the output shaft of the hydraulic cylinder or the air cylinder on the upper mounting seat 1, so as to facilitate the vertical lifting of the upper mounting seat 1 and the upper mold 22, a U-shaped assembly frame 20 is fixedly installed on the top of the upper mounting seat 1. A plurality of uniformly distributed assembly holes are provided on the U-shaped assembly frame 20.

[0028] In this embodiment, in order to ensure the smooth horizontal linear movement of the moving plate 11 in the installation groove 3, the front and rear side walls of the moving plate 11 are respectively in sliding contact with the front and rear inner walls of the installation groove 3.

[0029] With the above structure, when the clamping structure for mold injection molding provided by this application is in use, it can facilitate the disassembly and assembly of the injection mold 2, effectively replacing the fixing form of bolts and nuts. It is firmly and stably fixed, the operation is simple and labor-saving, and the work efficiency is improved. During specific operation, when it is necessary to clamp and fix the lower mold 21 on the lower mounting seat 1, first place the lower mold 21 on the lower mounting seat 1, so that the connecting seat 5 at the bottom of the lower mold 21 is inserted into the mounting groove 3, and the positioning post 16 is inserted into the positioning groove 17. Then control the motor 14 below to rotate forward. The output shaft of the motor 14 drives the drive shaft 9, the first screw 7 and the second screw 10 to rotate. At this time, the two moving plates 11 will move closer to each other, and the locking blocks 12 on the moving plates 11 will move accordingly, so that the two locking blocks 12 can be respectively inserted into the clamping grooves 13 on both sides of the connecting seat 5. By using the plugging cooperation between the two locking blocks 12 and the corresponding clamping grooves 13 respectively, the connecting seat 5 can be locked and fixed on the fixed seat 4, thereby realizing the firm and stable clamping and fixing of the lower mold 21 on the lower mounting seat 1. According to the above operation steps, the upper mold 22 can also be firmly and stably clamped and fixed on the upper mounting seat 1;

[0030] After clamping and fixing the upper mold 22 and the lower mold 21, then assemble and fix the end of the output shaft of the hydraulic cylinder or the air cylinder on the U-shaped assembly frame 20. By controlling the telescopic characteristics of the hydraulic cylinder or the air cylinder, the upper mounting seat 1 and the upper mold 22 can be controlled to move vertically up and down, thereby realizing the mold closing or demolding process between the upper mold 22 and the lower mold 21, so as to facilitate injection molding production;

[0031] When it is necessary to disassemble and remove the lower mold 21, first control the demolding between the upper mold 22 and the lower mold 21, and then control the motor 14 below to rotate in the reverse direction. At this time, the two moving plates 11 will move away from each other, and the locking blocks 12 on the moving plates 11 will move accordingly, so that the two locking blocks 12 can be respectively moved out of the clamping grooves 13 on both sides of the connecting seat 5, that is, the locking and fixing between the connecting seat 5 and the fixed seat 4 is released, and then the lower mold 21 can be quickly disassembled and removed from the lower mounting seat 1. According to the above operation steps, the upper mold 22 can also be quickly disassembled and removed from the upper mounting seat 1.

Claims

1. A clamping structure for mold injection molding, characterized in that: The invention comprises two mounting seats (1), an injection mold (2) is arranged between the two mounting seats (1), the injection mold (2) comprises a lower mold (21) and an upper mold (22), a mounting groove (3) is provided on the side of the two mounting seats (1) close to each other, a fixing seat (4) is fixedly installed on the inner wall of the side of the two mounting grooves (3) away from each other, a connecting seat (5) is fixedly installed on the side of the lower mold (21) and the upper mold (22) away from each other, the side of the two connecting seats (5) away from each other is respectively fitted with the side of the two fixing seats (4) close to each other, and a clamping assembly is arranged on the two mounting seats (1), and the two clamping assemblies are used to lock and fix the lower mold (21) and the upper mold (22) on the corresponding mounting seats (1).

2. A clamping structure for mold injection molding according to claim 1, characterized in that: The clamping assembly comprises a shaft seat (6), a screw rod 1 (7), a drive shaft (9), a screw rod 2 (10), two movable plates (11), two locking blocks (12) and a motor (14); the shaft seat (6) is fixedly mounted on an inner wall of one side of the mounting groove (3); the screw rod 1 (7) is rotatably mounted on the shaft seat (6); a transverse hole (8) is provided on an inner wall of a side of the mounting groove (3) away from the shaft seat (6); the drive shaft (9) is rotatably mounted in the transverse hole (8) through a bearing; one end of the drive shaft (9) extends into the transverse hole (8); the screw rod 2 (10) is fixedly mounted on one end of the drive shaft (9) located in the mounting groove (3); and the ends of the screw rod 1 (7) and the screw rod 2 (10) close to each other are fixedly connected. The threads of the screw rod 1 (7) and the screw rod 2 (10) are arranged in opposite directions, the two movable plates (11) are respectively threadedly sleeved on the screw rod 1 (7) and the screw rod 2 (10), and the two movable plates (11) are symmetrically distributed on both sides of the connecting seat (5), the two locking blocks (12) are respectively fixedly mounted on the sides of the two movable plates (11) close to each other, and the two sides of the connecting seat (5) are provided with card grooves (13), and the two locking blocks (12) are respectively slidably mounted in the corresponding card grooves (13), and the motor (14) is fixedly mounted on the outer wall of the mounting seat (1), and the output shaft end of the motor (14) extends into the transverse hole (8) and is fixedly connected to one end of the screw rod 2 (10).

3. A clamping structure for mold injection molding according to claim 2, characterized in that: The cross-sectional dimensions of the fixing seat (4) and the cross-sectional dimensions of the connecting seat (5) are arranged to be identical.

4. The clamping structure for mold injection molding according to claim 3, characterized in that: A relief hole (15) is provided on one side of the fixing seat (4), and the ends of the screw rod 1 (7) and the screw rod 2 (10) that are close to each other are both located in the relief hole (15).

5. The clamping structure for mold injection molding according to claim 3, characterized in that: A positioning column (16) is fixedly installed on one side of the fixing seat (4) close to the connecting seat (5), and a positioning groove (17) is provided on one side of the connecting seat (5) close to the fixing seat (4), and the positioning column (16) is slidably installed in the positioning groove (17).

6. The clamping structure for mold injection molding according to claim 1, characterized in that: A guide column (18) is fixedly mounted on the top of the mounting seat (1) located at the bottom, and a storage groove is provided on the top of the guide column (18). A telescopic rod (19) is fixedly mounted on the bottom of the mounting seat (1) located at the top, and the bottom end of the telescopic rod (19) is slidably mounted in the storage groove.

7. The clamping structure for mold injection molding according to claim 1, characterized in that: A U-shaped assembly frame (20) is fixedly mounted on the top of the mounting seat (1) located above, and a plurality of evenly distributed assembly holes are provided on the U-shaped assembly frame (20).

8. The clamping structure for mold injection molding according to claim 2, characterized in that: The front and rear side walls of the movable plate (11) are in sliding contact with the front and rear side inner walls of the mounting groove (3) respectively.

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