A three-station hot press apparatus

Abstract

The utility model discloses a three position hot press equipment, including lower rack and lift plate relates to hot press equipment technical field, the upside fixed connection of lower rack has the vertical rod, and the top of vertical rod is installed to the lower pressure mechanism, and the bottom of lower pressure mechanism is connected with the fixed plate, and the fixed plate is fixedly connected with telescopic link and first compression spring between lift plate, and the bottom of lift plate is installed with hot pressure mechanism, and the both sides of mould are equipped with the installation groove, and the inboard fixed connection of installation groove has the connecting seat, and the inboard swing joint of connecting seat has the side plate, and the upper side of connecting seat is installed with the buffer mechanism. When the structure is driven to press down through the cylinder, first compression spring realizes initial buffer and makes hot pressure mechanism steady contact work piece, and mould side plate is pressed down and turns and compresses second compression spring and forms secondary buffer, and double flexible pressure avoids work piece and cracks, and the foot cup of rotatable descent can replace the load of truckle when operating, prevents wheel body pressure loss and enhances equipment stability, and the yield of hot press piece is improved significantly and prolongs the life of moving part.

Description

Technical Field

[0001] This utility model relates to the field of hot pressing equipment technology, specifically to a three-station hot pressing equipment. Background Technology

[0002] In fields such as precision electronic components and composite material molding, hot pressing is a core processing method. Currently, multi-station hot pressing equipment is gradually replacing single-station models due to its efficiency advantages. The mainstream design achieves continuous production through direct cylinder pressure combined with a heating module. With the widespread application of highly brittle materials (such as ceramic substrates and optical thin films), the market demand for pressure control precision and equipment stability is increasing daily.

[0003] Existing typical multi-station hot press equipment includes a lower frame, a lifting plate and a cylinder drive unit. The lifting plate is connected to the cylinder output shaft through a rigid connecting rod, and the bottom integrates a heating pressure block. The station switching relies on the horizontal sliding of the mold on the pneumatic guide rail. This type of equipment relies on the cylinder stroke to directly apply pressure, without a pressure buffer structure, and the support system uses fixed casters to bear the weight of the whole machine.

[0004] However, the above solutions have significant drawbacks. The direct pressure of the cylinder causes the impact force to be transmitted to the workpiece instantaneously. Brittle materials are prone to microcracks or breakage due to rigid collisions. The mold lacks a lateral buffering mechanism, and the pressure peak cannot be released flexibly. The fixed casters are prone to deformation and out of roundness under long-term static loads, affecting the horizontal accuracy of the equipment. These problems directly restrict the yield rate of high-value-added workpieces and the durability of the equipment.

[0005] Based on this, the present invention designs a three-station hot pressing device to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a three-station hot pressing device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A three-station hot pressing device includes a lower frame and a lifting plate, as well as a pressing mechanism, a hot pressing mechanism, and a buffer mechanism. Three sets of horizontally arranged pneumatic guide rails are fixedly connected to the upper side of the lower frame. A fixed seat is slidably connected to the upper side of each pneumatic guide rail. A mold is fixedly connected to the upper side of the fixed seat. A vertical pole is fixedly connected to the upper side of the lower frame. The pressing mechanism is installed on the top of the vertical pole. A fixed plate is fixedly connected to the bottom of the pressing mechanism. A telescopic rod and a first compression spring are fixedly connected between the fixed plate and the lifting plate. The hot pressing mechanism is installed at the bottom of the lifting plate. Mounting grooves are provided on both sides of the mold. A connecting seat is fixedly connected to the inner side of each mounting groove. A side plate is rotatably connected to the inner side of the connecting seat. The buffer mechanism is installed on the upper side of the connecting seat.

[0008] Furthermore, an upper frame is fixedly connected to the upper side of the lower frame.

[0009] Furthermore, the pressing mechanism includes a top plate, a cylinder, and a pressure seat. The top plate is fixedly connected to the top of the upright, the cylinder is fixedly connected to the upper side of the top plate, the pressure seat is fixedly connected to the lower side of the output shaft of the cylinder, and the fixing plate is fixedly connected to the bottom of the pressure seat.

[0010] Furthermore, the first compression spring is sleeved on the outside of the telescopic rod, and a sliding sleeve is fixedly connected to the upper side of the lifting plate, with the sliding sleeve and the upright being slidably connected.

[0011] Furthermore, the hot pressing mechanism includes a heater and a pressing block. The heater is fixedly connected to the bottom of the lifting plate, and the pressing block is fixedly connected to the lower side of the heater. A pressing groove is provided on the upper side of the mold, and the pressing groove matches the pressing block.

[0012] Furthermore, the buffer mechanism includes a fixed cylinder and a second compression spring. The fixed cylinder is fixedly connected to the upper side of the connecting seat, and the second compression spring is fixedly connected to the inner side of the fixed cylinder, with the top end of the second compression spring abutting against the bottom of the side plate.

[0013] Furthermore, the bottom of the lower frame is fixedly connected to four sets of arrayed fixing blocks. The bottom of each fixing block is fixedly connected to casters and support rods, and the lower side of the support rod is higher than the bottom of the casters. The lower side of the support rod is detachably connected to a foot cup, and the bottom of the foot cup is lower than the bottom of the casters.

[0014] Furthermore, a control panel and a temperature controller are fixedly connected to the external part of the upper frame. The control panel is electrically connected to the cylinder, and the temperature controller is electrically connected to the heater.

[0015] Compared with the prior art, the advantages of this utility model are as follows: 1. When the pressure seat is pressed down by the cylinder, the first compression spring absorbs the initial impact force, so that the lifting plate and the hot pressing components slowly contact the workpiece, avoiding rigid collisions that cause material breakage. After the side plates on both sides of the mold are pressed, they drive the second compression spring to compress, forming a secondary flexible buffer. The double decompression design significantly reduces the risk of workpiece hidden cracks, and is especially suitable for high-precision hot pressing of brittle materials. 2. The three-station hot press equipment features detachable feet that replace the casters to bear the overall weight during operation, preventing the casters from deforming due to long-term pressure and affecting the equipment's mobility. The design of the feet being lower than the casters ensures operational stability and facilitates quick switching between moving and fixed states, effectively extending the service life of the moving parts. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0017] Figure 1 This is a perspective view of a three-station hot pressing device according to the present invention; Figure 2 This is a schematic diagram of the first partial structure of the present invention; Figure 3 for Figure 2 The front view; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the second partial structure of the present invention; Figure 6 for Figure 5 Enlarged view of point B in the middle; Figure 7 for Figure 5 Enlarged view of point C in the middle.

[0018] The labels in the diagram represent: 1. Lower frame; 2. Upper frame; 3. Pneumatic guide rail; 4. Upright pole; 5. Top plate; 6. Cylinder; 7. Pressure seat; 8. Lifting plate; 9. Fixing plate; 10. Telescopic rod; 11. First compression spring; 12. Sliding sleeve; 13. Heater; 14. Pressure block; 15. Fixing seat; 16. Mold; 17. Pressure groove; 18. Mounting groove; 19. Connecting seat; 20. Side plate; 21. Fixing cylinder; 22. Second compression spring; 23. Fixing block; 24. Casters; 25. Support rod; 26. Foot cup; 27. Control panel; 28. Temperature controller. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-7A three-station hot pressing device includes a lower frame 1 and a lifting plate 8. The lower frame 1 serves as the basic support structure of the entire device and is made of high-strength steel welded together. Its stable frame design can withstand all mechanical loads during the hot pressing process. An upper frame 2 is fixedly connected to the upper side of the lower frame 1. The upper frame 2 serves as the upper support frame of the device and together with the lower frame 1, it forms a complete equipment skeleton, providing an installation reference for each functional component.

[0021] Three sets of horizontally arranged pneumatic guide rails 3 are fixedly connected to the upper side of the lower frame 1. The pneumatic guide rails 3 serve as guide components for the movement of the mold 16. They adopt a precision linear guide rail structure, which enables the smooth sliding and precise positioning of the fixed seat 15. The fixed seat 15 is slidably connected to the upper side of the pneumatic guide rails 3. The fixed seat 15 serves as the mounting platform for the mold 16. Its bottom is equipped with a slider structure that matches the pneumatic guide rails 3 to ensure the motion accuracy during station switching. The mold 16 is fixedly connected to the upper side of the fixed seat 15. The mold 16 serves as the forming carrier for the workpiece. Its cavity structure is customized according to the product shape, and its surface is specially treated to improve wear resistance and demolding performance.

[0022] A vertical pole 4 is fixedly connected to the upper side of the lower frame 1. The vertical pole 4 serves as the support column for the pressing mechanism and adopts a hollow steel pipe structure, which ensures strength while reducing the overall weight. The pressing mechanism is installed on the top of the vertical pole 4. As the main power unit of the equipment, the pressing mechanism is driven by the cylinder 6 to achieve precise pressure output. A fixed plate 9 is fixedly connected to the bottom of the pressing mechanism. The fixed plate 9 serves as an intermediate component for force transmission, distributing the force of the cylinder 6 evenly to the entire lifting plate 8.

[0023] The pressing mechanism includes a top plate 5, a cylinder 6, and a pressure seat 7. The top plate 5 serves as the mounting platform for the cylinder 6, and its thickened steel plate structure ensures that it will not deform under high pressure conditions. The top plate 5 is fixedly connected to the top of the upright 4. The cylinder 6 is fixedly connected to the upper side of the top plate 5. As the core power component, the cylinder 6 is a high-precision servo cylinder, which can achieve precise control of stroke and pressure. The pressure seat 7 is fixedly connected to the lower side of the output shaft of the cylinder 6. As the direct force transmission component, the pressure seat 7 is equipped with a leveling mechanism at its bottom to ensure uniform pressure distribution. The fixing plate 9 is fixedly connected to the bottom of the pressure seat 7. A telescopic rod 10 and a first compression spring 11 are fixedly connected between the fixed plate 9 and the lifting plate 8. The telescopic rod 10 serves as a guide component to ensure the vertical movement trajectory of the lifting plate 8. The first compression spring 11 is sleeved on the outside of the telescopic rod 10 and serves as a primary buffer element. Its elastic properties can effectively absorb the initial impact energy. A sliding sleeve 12 is fixedly connected to the upper side of the lifting plate 8. The sliding sleeve 12 serves as a lifting guide component. The self-lubricating bearing embedded inside it ensures smooth sliding on the upright 4, and the sliding sleeve 12 and the upright 4 are slidably connected.

[0024] A hot pressing mechanism is installed at the bottom of the lifting plate 8. As the core processing unit, the hot pressing mechanism integrates heating and pressurization functions. The hot pressing mechanism includes a heater 13 and a pressing block 14. The heater 13 is a temperature control component that uses PID temperature control technology to achieve a precise heating curve. The heater 13 is fixedly connected to the bottom of the lifting plate 8, and the pressing block 14 is fixedly connected to the lower side of the heater 13. The pressing block 14 is a component that directly contacts the workpiece, and its surface is coated with Teflon to prevent material sticking. A pressing groove 17 is opened on the upper side of the mold 16. The pressing groove 17 serves as the forming space for the workpiece, and its dimensional accuracy directly affects the product quality. The pressing groove 17 and the pressing block 14 are matched. It should be noted that when the pneumatic guide rail 3 drives the fixed seat 15 to move to the limit position, the mold 16 can automatically align with the pressing block 14.

[0025] The mold 16 has mounting grooves 18 on both sides. The mounting grooves 18 serve as the mounting space for the buffer mechanism. Their depth is precisely calculated to ensure the buffering effect. A connecting seat 19 is fixedly connected to the inner side of the mounting groove 18. The connecting seat 19 serves as the support base for the side plate 20 and is made of high-strength alloy material. The side plate 20 is rotatably connected to the inner side of the connecting seat 19. The side plate 20 serves as the actuator for secondary buffering. Its arc-shaped design can evenly distribute pressure.

[0026] The buffer mechanism is installed on the upper side of the connecting seat 19. As a pressure compensation unit, the buffer mechanism can effectively avoid product defects caused by sudden pressure changes. The buffer mechanism includes a fixed cylinder 21 and a second compression spring 22. The fixed cylinder 21 serves as the housing for the spring, and its inner wall is polished to reduce friction. The fixed cylinder 21 is fixedly connected to the upper side of the connecting seat 19. The second compression spring 22 is fixedly connected to the inner side of the fixed cylinder 21. The second compression spring 22 serves as a secondary buffer element, and its stiffness coefficient is complementary to that of the first compression spring 11. The top end of the second compression spring 22 abuts against the bottom of the side plate 20.

[0027] The bottom of the lower frame 1 is fixedly connected to four sets of arrayed fixing blocks 23. The fixing blocks 23 serve as the mounting base for the moving parts. Their reinforcing rib design improves the structural rigidity. The bottom of the fixing blocks 23 is fixedly connected to casters 24 and support rods 25. The casters 24 serve as the moving parts and adopt a universal wheel design with a brake function. The support rods 25 serve as the fixed support parts. Their threaded structure allows for fine height adjustment. The lower side of the support rods 25 is higher than the bottom of the casters 24. The lower side of the support rods 25 is detachably connected to foot cups 26. The foot cups 26 serve as stable supports during operation. Their rubber pads can effectively absorb shock. The bottom of the foot cups 26 is lower than the bottom of the casters 24.

[0028] The upper frame 2 is externally fixedly connected to a control panel 27 and a temperature controller 28. The control panel 27 serves as a human-machine interface and adopts a touch screen design for easy operation. The temperature controller 28 serves as a temperature management unit and has multi-segment temperature control programming function. The control panel 27 is electrically connected to the cylinder 6, and the temperature controller 28 is electrically connected to the heater 13.

[0029] In this embodiment, when the three-station hot pressing equipment is working, the cylinder 6 drives the pressure seat 7 to move downward, which drives the fixed plate 9 to press down synchronously. The fixed plate 9 transmits pressure to the lifting plate 8 through the telescopic rod 10 and the first compression spring 11 sleeved on its outer side. The elastic deformation of the first compression spring 11 can absorb the initial impact force, so that the lifting plate 8 and the hot pressing mechanism at its bottom can be pressed down slowly and steadily. The pressure block 14 of the hot pressing mechanism is then embedded in the pressure groove 17 at the top of the mold 16 to heat and pressurize the workpiece.

[0030] When the pressure block 14 contacts the workpiece, the side plates 20 on both sides of the mold 16 are subjected to vertical pressure and rotate downward around the connecting seat 19. The bottom of the side plate 20 presses the second compression spring 22 in the fixed cylinder 21, causing it to compress and deform to form a secondary buffer. This dual-stage buffer mechanism effectively alleviates the instantaneous impact, avoids the hot-pressed parts from cracking due to stress concentration, and significantly improves the yield of finished products.

[0031] In addition, the equipment is supported by casters 24 when it moves. Before hot pressing, the foot cups 26 are installed at the bottom of the support rods 25. At this time, the foot cups 26 bear the overall weight of the equipment, preventing the casters 24 from being deformed and damaged by pressure, and enhancing the working stability of the equipment. Meanwhile, the control panel 27 regulates the stroke of the cylinder 6, and the temperature controller 28 maintains the working temperature of the pressing block 14 through the heater 13, so as to achieve precise hot pressing process control.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A three-station hot pressing device, comprising a lower frame (1) and a lifting plate (8), characterized in that: It also includes a pressing mechanism, a hot pressing mechanism and a buffer mechanism. Three sets of horizontally arranged pneumatic guide rails (3) are fixedly connected to the upper side of the lower frame (1). A fixed seat (15) is slidably connected to the upper side of the pneumatic guide rails (3). A mold (16) is fixedly connected to the upper side of the fixed seat (15). A vertical rod (4) is fixedly connected to the upper side of the lower frame (1). The pressing mechanism is installed on the top of the vertical rod (4). A fixed plate (9) is fixedly connected to the bottom of the pressing mechanism. A telescopic rod (10) and a first compression spring (11) are fixedly connected between the fixed plate (9) and the lifting plate (8). A hot pressing mechanism is installed at the bottom of the lifting plate (8). Installation slots (18) are opened on both sides of the mold (16). A connecting seat (19) is fixedly connected to the inner side of the installation slot (18). A side plate (20) is rotatably connected to the inner side of the connecting seat (19). The buffer mechanism is installed on the upper side of the connecting seat (19).

2. The three-station hot pressing equipment according to claim 1, characterized in that, The upper frame (2) is fixedly connected to the upper side of the lower frame (1).

3. The three-station hot pressing equipment according to claim 2, characterized in that, The pressing mechanism includes a top plate (5), a cylinder (6) and a pressure seat (7). The top plate (5) is fixedly connected to the top of the upright (4). The cylinder (6) is fixedly connected to the upper side of the top plate (5). The pressure seat (7) is fixedly connected to the lower side of the output shaft of the cylinder (6). The fixing plate (9) is fixedly connected to the bottom of the pressure seat (7).

4. The three-station hot pressing equipment according to claim 1, characterized in that, The first compression spring (11) is sleeved on the outside of the telescopic rod (10), and the upper side of the lifting plate (8) is fixedly connected to the sliding sleeve (12), and the sliding sleeve (12) is slidably connected to the upright (4).

5. The three-station hot pressing equipment according to claim 3, characterized in that, The hot pressing mechanism includes a heater (13) and a pressing block (14). The heater (13) is fixedly connected to the bottom of the lifting plate (8), and the pressing block (14) is fixedly connected to the lower side of the heater (13). The upper side of the mold (16) is provided with a pressing groove (17), and the pressing groove (17) matches the pressing block (14).

6. The three-station hot pressing equipment according to claim 1, characterized in that, The buffer mechanism includes a fixed cylinder (21) and a second compression spring (22). The fixed cylinder (21) is fixedly connected to the upper side of the connecting seat (19), and the second compression spring (22) is fixedly connected to the inner side of the fixed cylinder (21). The top end of the second compression spring (22) abuts against the bottom of the side plate (20).

7. The three-station hot pressing equipment according to claim 1, characterized in that, The bottom of the lower frame (1) is fixedly connected to four sets of arrayed fixing blocks (23). The bottom of the fixing blocks (23) is fixedly connected to casters (24) and support rods (25). The lower side of the support rods (25) is higher than the bottom of the casters (24). The lower side of the support rods (25) is detachably connected to foot cups (26), and the bottom of the foot cups (26) is lower than the bottom of the casters (24).

8. The three-station hot pressing equipment according to claim 5, characterized in that, The upper frame (2) is externally fixedly connected to a control panel (27) and a temperature controller (28). The control panel (27) is electrically connected to the cylinder (6), and the temperature controller (28) is electrically connected to the heater (13).

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