Quick replacement mechanism for hot-pressing die cover plate

Abstract

The application relates to a hot-pressing mold cover plate quick replacement mechanism, which comprises a base, the top of the base is provided with a first base, the top of the first base is provided with a first moving seat, the top of the first moving seat is provided with a lower mold cover plate, the top of the first moving seat is provided with symmetrical fixing frames which are matched and installed with symmetrical clamping seats arranged at the bottom of the lower mold cover plate, the first L-shaped rack plate and the second L-shaped rack plate are driven to slide in opposite directions by a driving electric push rod, the fixed rods are inserted into corresponding fixing holes arranged on the clamping seats and the fixing frames, thereby fixing the lower mold cover plate, and the first L-shaped rack plate and the second L-shaped rack plate are driven to move towards each other by the driving electric push rod, the fixed rods are separated from the corresponding fixing holes arranged on the fixing frames and the clamping seats, thereby facilitating the disassembly of the lower mold cover plate, and the replacement is faster.

Description

Technical Field

[0001] This application relates to the field of hot press mold cover plate technology, and in particular to a quick replacement mechanism for hot press mold cover plates. Background Technology

[0002] Hot pressing is widely used in many industrial production fields, such as plastic product processing, electronic component manufacturing, and composite material molding. As a key component of hot pressing equipment, the hot press mold cover plate plays a crucial role. It not only applies uniform pressure to the workpiece during hot pressing to ensure product molding quality, but also affects heat transfer efficiency to a certain extent, thus influencing production efficiency and product quality.

[0003] However, existing hot press mold cover plates are usually connected by bolts or nuts during use. When it is necessary to replace the hot press mold cover plate, the staff needs to use tools to remove a large number of bolts or nuts one by one, which makes the disassembly process time-consuming and laborious. Moreover, the bolts or nuts may seize up after long-term use, which further increases the difficulty of disassembly and makes replacement inconvenient. Utility Model Content

[0004] To address the problems mentioned in the background art, this application provides a quick-change mechanism for hot-pressed mold cover plates.

[0005] The hot press mold cover plate quick replacement mechanism provided in this application adopts the following technical solution: A quick-change mechanism for a hot-press mold cover plate includes a base, a first base plate on the top of the base, a first movable seat on the top of the first base plate, a lower mold cover plate on the top of the first movable seat, a symmetrical fixing frame on the top of the first movable seat plate, the fixing frame being adapted to and installed with a symmetrical locking seat on the bottom of the lower mold cover plate, a first fixing structure for locking the lower mold cover plate on the top of the first movable seat, a first driving structure for moving the first movable seat back and forth in a groove on the first base plate, a support frame on the top of the base, and a hydraulic cylinder mounted on the top of the support frame.

[0006] Preferably, the fixing structure includes a first L-shaped rack plate and a second L-shaped rack plate installed on the top of the first movable seat, and a sliding block is provided at the bottom of the first L-shaped rack plate and the second L-shaped rack plate. The sliding block slides in a symmetrical groove opened on the top of the first movable seat.

[0007] Preferably, a transmission gear meshes between the first L-shaped rack plate and the second L-shaped rack plate. The transmission gear is rotatably mounted on a rotating shaft provided on the top of the first movable seat. A connecting block is provided on one side of the first L-shaped rack plate, and one side of the connecting block is connected to the output end of an electric push rod provided on the top of the first movable seat.

[0008] Preferably, one end sidewall of the first L-shaped rack plate and the second L-shaped rack plate is provided with a plurality of symmetrical fixing rods, one end of which passes through the corresponding fixing hole opened between the fixing frame and the card seat.

[0009] Preferably, the drive structure includes a lead screw installed in a groove at the middle position on the first base. One end of the lead screw is connected to a bearing seat provided on the inner wall of the groove, and the other end of the lead screw extends out of the groove and is connected to a drive motor fixedly installed on one side of the first base.

[0010] Preferably, a movable seat is adapted to be installed on the lead screw, the top of the movable seat is connected to the bottom of the first movable seat, and the bottom of the first movable seat is also provided with two symmetrical movable blocks, which are slidably installed on slide rods provided in two other symmetrical grooves opened on the top of the first base.

[0011] Preferably, the output end of the hydraulic cylinder is connected to a pressure plate at the bottom of the support frame, and the top of the pressure plate is provided with two symmetrical guide rods, one end of which slides in a guide hole opened at the top of the support frame.

[0012] Preferably, a second base identical to the first base is fixedly installed on the bottom of the pressure plate. A second movable seat is provided at the bottom of the second base. A second driving structure that drives the second movable seat to move back and forth is provided on the second base. The second driving structure is the same as the first driving structure. An upper mold cover plate is provided at the bottom of the second movable seat. A second fixing structure that locks the upper mold cover plate is provided at the bottom of the second movable seat. The second fixing structure is the same as the first fixing structure.

[0013] In summary, this application includes the following beneficial technical effects: This utility model features a fixed structure. By driving an electric push rod, the first L-shaped rack plate and the second L-shaped rack plate slide back to back, causing a fixed rod connected at one end to pass into the corresponding fixed holes on the fixed frame and the card seat, thereby fixing the lower mold cover plate. Similarly, by driving the electric push rod, the first L-shaped rack plate and the second L-shaped rack plate move towards each other, causing the fixed rod connected at one end to disengage from the corresponding fixed holes on the fixed frame and the card seat, thus facilitating the disassembly of the lower mold cover plate and making replacement faster. This utility model is equipped with a drive structure. The drive motor drives the lead screw to rotate, which causes the movable seat to move the first movable seat connected to the top to slide along the slide bar through two movable blocks set at the bottom. This causes the first movable seat to move the lower mold cover plate fixedly installed at the top out of the processing area, thereby increasing the space for disassembling and installing the lower mold cover plate and making replacement faster. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of a quick-change mechanism for a hot-press mold cover plate according to an embodiment of this application; Figure 2 This is a schematic diagram showing the structural separation between the first base and the first movable seat in an embodiment of this application; Figure 3 This is a schematic diagram showing the structural breakdown between the first movable seat and the lower mold cover plate in an embodiment of this application; Figure 4 This is a schematic diagram of the top structure of the first movable seat in an embodiment of this application; Figure 5 This is a schematic diagram of the bottom structure of the support frame in an embodiment of this application.

[0015] Explanation of reference numerals in the attached drawings: 1. Base; 2. First base; 3. First movable seat; 4. Lower mold cover plate; 5. Fixed frame; 6. Card seat; 7. Support frame; 8. First L-shaped rack plate; 9. Second L-shaped rack plate; 10. Slide groove; 11. Transmission gear; 12. Electric push rod; 13. Fixed rod; 14. Lead screw; 15. Drive motor; 16. Movable seat; 17. Movable block; 18. Slide rod; 19. Pressure plate; 20. Guide rod; 21. Upper mold cover plate. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1 —5 provides further details regarding this application.

[0017] This application discloses a quick-change mechanism for a hot press mold cover plate, including a base 1, a first base 2 on the top of the base 1, a first movable seat 3 on the top of the first base 2, a lower mold cover plate 4 on the top of the first movable seat 3, a symmetrical fixing frame 5 on the top of the first movable seat 3, the fixing frame 5 being adapted to and installed with a symmetrical card seat 6 on the bottom of the lower mold cover plate 4, a first fixing structure for locking the lower mold cover plate 4 on the top of the first movable seat 3, a first driving structure for moving the first movable seat 3 back and forth in a groove on the first base 2, a support frame 7 on the top of the base 1, and a hydraulic cylinder mounted on the top of the support frame 7.

[0018] refer to Figure 3 and Figure 4The fixed structure includes a first L-shaped rack plate 8 and a second L-shaped rack plate 9 mounted on the top of the first movable seat 3. Sliding blocks are provided at the bottom of the first L-shaped rack plate 8 and the second L-shaped rack plate 9, sliding within symmetrical grooves 10 opened on the top of the first movable seat 3. A transmission gear 11 meshes between the first L-shaped rack plate 8 and the second L-shaped rack plate 9, and the transmission gear 11 is rotatably mounted on a rotating shaft on the top of the first movable seat 3. A connecting block is provided on one side of the first L-shaped rack plate 8, and one side of the connecting block is connected to the output end of an electric push rod 12 on the top of the first movable seat 3. Several symmetrical fixing rods 13 are provided on one side wall of the first L-shaped rack plate 8 and the second L-shaped rack plate 9. One end of each fixing rod 13 passes through a corresponding fixing hole opened between the fixing frame 5 and the card seat 6. More specifically, the electric push rod 12 drives the connecting rod 13 on one side of the first L-shaped rack plate 8. The first L-shaped rack plate 8 slides along the slide groove 10 via the bottom sliding block. When the first L-shaped rack plate 8 slides, it drives the transmission gear 11 to rotate. The rotation of the transmission gear 11 drives the second L-shaped rack plate 9 to slide along the slide groove 10 via the bottom sliding block. This causes the first L-shaped rack plate 8 and the second L-shaped rack plate 9 to slide back to back, causing the fixed rod 13 connected at one end to pass into the corresponding fixed holes opened on the fixed frame 5 and the card seat 6, thereby fixing the lower mold cover plate 4. When the lower mold cover plate 4 is replaced, similarly, the electric push rod 12 is driven to pull the connecting block to drive the first L-shaped rack plate 8 to slide. Under the action of the transmission gear 11, the first L-shaped rack plate 8 and the second L-shaped rack plate 9 move towards each other, and cause the fixed rod 13 connected at one end to disengage from the corresponding fixed holes opened on the fixed frame 5 and the card seat 6, thereby facilitating the disassembly of the lower mold cover plate 4 and making the replacement faster.

[0019] refer to Figure 2 The drive structure includes a lead screw 14 installed in a groove at the middle position on the first base 2. One end of the lead screw 14 is connected to a bearing seat provided on the inner wall of the groove, and the other end of the lead screw 14 extends out of the groove and is connected to a drive motor 15 fixedly installed on one side of the first base 2. A movable seat 16 is adapted to be installed on the lead screw 14. The top of the movable seat 16 is connected to the bottom of the first movable seat 3. Two symmetrical movable blocks 17 are also provided at the bottom of the first movable seat 3. The two movable blocks 17 are slidably installed on slide rods 18 provided in two other symmetrical grooves opened at the top of the first base 2. More specifically, the drive motor 15 drives the lead screw 14 to rotate, causing the adapted movable seat 16 to move back and forth along the lead screw 14, and causing the first movable seat 3 connected to the top to slide along the slide rods 18 through the two movable blocks 17 at the bottom. This causes the first movable seat 3 to move the lower mold cover plate 4 fixedly installed at the top out of the processing area, thereby increasing the space for disassembling and installing the lower mold cover plate 4, making replacement faster.

[0020] refer to Figure 1and Figure 5 The output end of the hydraulic cylinder is connected to the pressure plate 19 at the bottom of the support frame 7. Two symmetrical guide rods 20 are provided on the top of the pressure plate 19. One end of each guide rod 20 slides within a guide hole opened at the top of the support frame 7. A second base identical to the first base 2 is fixedly installed at the bottom of the pressure plate 19. A second movable seat is provided at the bottom of the second base. A second drive structure, identical to the first drive structure, is provided on the second base to drive the second movable seat to move back and forth. The bottom of the second movable seat is provided with an upper mold cover plate 21. A second fixing structure, which locks the upper mold cover plate 21, is also provided at the bottom of the second movable seat. The second fixing structure is connected to the first base 7. With the same fixed structure, more specifically, the driving hydraulic cylinder drives the pressure plate 19 to move downward. The guide rod 20 set on the top of the pressure plate 19 slides along the guide hole opened on the top of the support frame 7, so that the second base at the bottom of the pressure plate 19 drives the second movable seat set at the bottom to move downward, thereby driving the upper mold cover plate 21 to combine with the lower mold cover plate 4. The second driving structure set on the second base is the same as the first driving structure, and the second fixed structure set at the bottom of the second movable seat is the same as the first fixed structure, so that the second movable seat can drive the upper mold cover plate 21 to move out of the processing area, thereby facilitating the quick replacement of the upper mold cover plate 21 and making the operation more convenient.

[0021] The implementation principle of the quick-change mechanism for hot-press mold cover plates in this application embodiment is as follows: In use, the bottom seat 6 of the lower mold cover plate 4 is adapted to the top fixing frame 5 of the first movable seat 3. The electric push rod 12 is driven, causing the first L-shaped rack plate 8 to slide along the slide groove 10, driving the transmission gear 11 to rotate. The rotation of the transmission gear 11 drives the second L-shaped rack plate 9 to slide along the slide groove 10, so that the first L-shaped rack plate 8 and the second L-shaped rack plate 9 slide back to back, causing the fixing rod 13 to pass into the corresponding fixing holes opened on the fixing frame 5 and the seat 6, thereby fixing the lower mold cover plate 4. Similarly, the top seat 6 of the upper mold cover plate 21 is adapted to the top fixing frame 5 of the second movable seat. By driving the electric push rod 12, the upper mold cover plate 21 can be fixed. Then, the hydraulic cylinder is driven to drive the pressure plate 1. 9 moves downwards, allowing the upper mold cover plate 21 and the lower mold cover plate 4 to combine for hot pressing. When it is necessary to replace the upper mold cover plate 21 and the lower mold cover plate 4, the drive motor 15 drives the lead screw 14 to rotate, causing the movable seat 16 to drive the first movable seat 3 to slide along the slide rod 18, and also causing the top lower mold cover plate 4 to move out of the processing area, increasing the disassembly space of the lower mold cover plate 4. Then, the electric push rod 12 is driven, causing the first L-shaped rack plate 8 and the second L-shaped rack plate 9 to slide towards each other, causing the fixing rod 13 to disengage from the corresponding fixing holes opened on the fixing frame 5 and the card seat 6, thereby quickly replacing the lower mold cover plate 4. Similarly, the drive motor 15 drives the upper mold cover plate 21 to move out of the processing area, thereby quickly replacing the upper mold cover plate 21, making the operation more convenient.

[0022] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-change mechanism for a hot-press mold cover plate, comprising a base (1), a first base (2) disposed on the top of the base (1), a first movable seat (3) disposed on the top of the first base (2), and a lower mold cover plate (4) disposed on the top of the first movable seat (3), characterized in that: The top of the first movable seat (3) is provided with a symmetrical fixing frame (5), which is adapted to the symmetrical card seat (6) provided at the bottom of the lower mold cover plate (4). The top of the first movable seat (3) is also provided with a first fixing structure for locking the lower mold cover plate (4). The groove opened on the first base (2) is provided with a first driving structure for moving the first movable seat (3) back and forth. The top of the base (1) is also provided with a support frame (7), and a hydraulic cylinder is installed on the top of the support frame (7).

2. The quick-change mechanism for hot-press mold cover plate according to claim 1, characterized in that: The fixing structure includes a first L-shaped rack plate (8) and a second L-shaped rack plate (9) installed on the top of the first movable seat (3). Sliding blocks are provided at the bottom of the first L-shaped rack plate (8) and the second L-shaped rack plate (9). The sliding blocks slide in symmetrical grooves (10) opened on the top of the first movable seat (3).

3. The quick-change mechanism for hot-press mold cover plate according to claim 2, characterized in that: A transmission gear (11) meshes between the first L-shaped rack plate (8) and the second L-shaped rack plate (9). The transmission gear (11) is rotatably mounted on a rotating shaft set on the top of the first movable seat (3). A connecting block is set on one side of the first L-shaped rack plate (8). One side of the connecting block is connected to the output end of an electric push rod (12) set on the top of the first movable seat (3).

4. The quick-change mechanism for hot-press mold cover plate according to claim 3, characterized in that: The first L-shaped rack plate (8) and the second L-shaped rack plate (9) are provided with a number of symmetrical fixing rods (13) on one side wall. One end of the fixing rod (13) passes through the corresponding fixing hole opened between the fixing frame (5) and the card seat (6).

5. The quick-change mechanism for hot-press mold cover plate according to claim 1, characterized in that: The drive structure includes a lead screw (14) installed in a groove at the middle position on the first base (2). One end of the lead screw (14) is connected to a bearing seat provided on the inner wall of the groove, and the other end of the lead screw (14) passes through the groove and is connected to a drive motor (15) fixedly installed on one side of the first base (2).

6. The quick-change mechanism for hot-press mold cover plate according to claim 5, characterized in that: A movable seat (16) is adapted to be installed on the lead screw (14). The top of the movable seat (16) is connected to the bottom of the first movable seat (3). The bottom of the first movable seat (3) is also provided with two symmetrical movable blocks (17). The two movable blocks (17) are slidably installed on the slide rods (18) provided in the other two symmetrical grooves opened on the top of the first base (2).

7. The quick-change mechanism for hot-press mold cover plate according to claim 1, characterized in that: The output end of the hydraulic cylinder is connected to the pressure plate (19) at the bottom of the support frame (7). The top of the pressure plate (19) is provided with two symmetrical guide rods (20), and one end of the two guide rods (20) slides in the guide hole opened at the top of the support frame (7).

8. The quick-change mechanism for hot-press mold cover plate according to claim 7, characterized in that: The bottom of the pressure plate (19) is fixedly installed with a second base that is the same as the first base (2). The bottom of the second base is provided with a second movable seat. The second base is provided with a second driving structure that drives the second movable seat to move back and forth. The second driving structure is the same as the first driving structure. The bottom of the second movable seat is provided with an upper mold cover plate (21). The bottom of the second movable seat is provided with a second fixing structure that locks the upper mold cover plate (21). The second fixing structure is the same as the first fixing structure.

Images