Rapid heating device for resin forming

Abstract

The invention discloses a resin forming rapid heating device which comprises a machine body, the top end of the machine body is fixedly connected with a lower die base, a plurality of supporting rods are symmetrically arranged on the periphery of the machine body, a lifting plate is arranged on the supporting rods in a sliding and sleeving mode, and the top ends of the supporting rods are jointly and fixedly connected with a supporting plate; the output end of the hydraulic cylinder is connected to the middle of the top of the lifting plate, a hot pressing plate is arranged at the bottom of the lifting plate, a plurality of symmetrically-arranged connecting blocks are fixedly connected to the periphery of the hot pressing plate, mounting grooves are formed in one sides of the connecting blocks, round rods are fixedly connected into the mounting grooves, and second magnets are rotationally connected to the round rods. The top of the lifting plate is provided with an adjusting mechanism used for forming magnetic attraction coupling with a second magnet on the hot pressing plate, limiting and fixing are achieved, and dismounting operation can be conducted after coupling is removed. The problems that in an existing heating machine, the hot pressing plate is low in replacement convenience, parts are abraded in the replacement process, and the service life is shortened can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of resin processing and molding, and in particular to a resin molding rapid heating device. Background Art

[0002] Among the rapid heating devices in the field of resin molding, the hot press is one of them. Its working mechanism is to simultaneously apply pressure and heat to the resin material through the heating plate, so as to enable the resin to be rapidly cured and molded under the set temperature and pressure environment. The heating plate usually adopts two methods of electric heating or oil heating, which can accurately control the temperature and pressure parameters. It is widely used in the molding process of various resin-based composite materials, such as fiber-reinforced resin composite materials, resin-based molding compounds and other fields.

[0003] In the heating structure of the hot press, the heating part is mainly composed of a lifting plate and a hot press plate, which are mechanically connected by multiple fixing bolts. When a new hot press plate needs to be replaced or repaired, the operator needs to use external tools such as wrenches to disassemble the fixing bolts multiple times. In addition, the bolts are prone to wear and thread slippage during the replacement process. When installing a new hot press plate, the alignment, screwing and tightening processes of multiple sets of bolts need to be repeated. This process is not only cumbersome and time-consuming, but also requires high physical strength and concentration of the operator, resulting in a significant reduction in the convenience of hot press plate replacement, which in turn affects the overall production efficiency and flexibility of the equipment. In addition, due to the small size of the bolts during disassembly and installation, the bolts are extremely easy to lose, wasting existing resources. Summary of the Invention

[0004] The present invention aims to provide a rapid heating device for resin molding, which can solve the problems of low convenience in replacing hot pressing plates in existing heating machines and wear and shortened service life of components caused during the replacement process.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A resin molding rapid heating device comprises a machine body, the top of the machine body is fixedly connected to a lower mold base, a plurality of support rods are symmetrically arranged around the machine body, a lifting plate is slidably sleeved on the plurality of support rods, the tops of the support rods are commonly fixedly connected to a support plate, a hydraulic cylinder is installed on the support plate, the output end of the hydraulic cylinder is connected to the middle position of the top of the lifting plate, a hot pressing plate is provided at the bottom of the lifting plate, a plurality of symmetrically arranged connecting blocks are fixedly connected around the hot pressing plate, one side of each connecting block is provided with a mounting groove, a round rod is fixedly connected inside the mounting groove, and a second magnet is rotatably connected to the round rod;

[0007] An adjustment mechanism is provided on the top of the lifting plate for forming a magnetic coupling with the second magnet on the hot pressing plate. The adjustment mechanism includes a rotating ring rotatably connected to the top of the lifting plate, and a plurality of extrusion seats are symmetrically arranged around the rotating ring and can move inward and outward along the radial direction of the lifting plate. The rotating ring and the extrusion seats are hinged by a connecting rod.

[0008] A receiving groove with an open opening and inclined side walls is provided in the middle of each extrusion seat. A lifting rod is provided at the edge of the receiving groove. The lifting rod passes through the extrusion seat, the lifting plate and the connecting block on the hot pressing plate in sequence. The three and the lifting rod form a sliding pair to realize the lifting and guiding function. Pressure wheels are rotatably connected to both sides of the top of the lifting rod, and the bottom ends of the pressure wheels abut against the inclined outer walls of the corresponding extrusion seat.

[0009] A radial through hole is provided at the bottom end of the lifting rod, and a spring is installed inside the radial through hole. The spring is arranged in a transverse direction and can elastically expand and contract inward. A limit block connected to the free end of the spring is also provided in the radial through hole of the lifting rod, and one end of the limit block is fixedly connected to a first triangular magnet;

[0010] The first magnet and the second magnet are connected together by different-level magnetic attraction forces to form a magnetic circuit closing system. When the two are attracted, the spring is stretched, and the top of the first magnet and the limit block are both in contact with the bottom end of the connecting block to achieve the limitation and fixation of the hot press plate; when the magnetic coupling relationship is released, the spring is in a free state, and the limit block can be retracted into the lifting rod as a whole, and the fixed state of the hot press plate is released accordingly; by rotating the rotating ring, the extrusion seat is driven to move radially outward along the lifting plate, and the inclined side wall of the accommodating groove squeezes the pressure wheel. As the extrusion seat moves outward, the pressure wheel rolls upward along the inclined side wall of the accommodating groove, thereby pushing the lifting rod to rise synchronously, and the inclined outer wall of the first magnet squeezes the bottom end of the connecting block, the spring is compressed, and the first magnet can be retracted into the lifting rod as a whole, completing the disassembly of the hot press plate.

[0011] Furthermore, a plurality of first hinged seats arranged in an array are fixedly connected to the rotating ring, a second hinged seat is fixedly connected to the outer wall of the extrusion seat, and a connecting rod is hinged between the first hinged seat and the second hinged seat.

[0012] Furthermore, the rotating ring is provided with a plurality of lever grooves arranged in an array. The crowbar is inserted into the lever groove to rotate the rotating ring, and drives the plurality of first hinge seats to rotate together, so that the connecting rod squeezes the second hinge seat. At this time, the second hinge seat drives the extrusion seat to move radially outward along the lifting plate.

[0013] Furthermore, a rubber layer is provided at the connection between the round rod and the second magnet.

[0014] Furthermore, the magnetic attraction between the first magnet and the second magnet is higher than the elastic force of the spring.

[0015] Furthermore, a connection between the extrusion seat and the top of the lifting plate is provided with a sliding groove arranged along both sides of the extrusion seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention arranges a second magnet and a first magnet on the lifting plate and the hot pressing plate respectively. The first magnet and the second magnet are connected together by different-level magnetic attraction forces to form a magnetic circuit closure system. When the two are attracted, the spring is stretched, and the top of the first magnet and the limit block are both in contact with the bottom of the connecting block to achieve the limitation and fixation of the hot pressing. When disassembly is required, the staff only needs to rotate the second magnet upward 90° one by one. At this time, the first magnet will retract the limit block under the drive of the spring. In addition, the rotating ring of the rotating adjustment mechanism will drive the multiple lifting rods to rise. The spring is compressed and the first magnet is retracted into the lifting rod. At this time, the lifting plate and the hot pressing plate can be disassembled. The operation process is simple and time-saving. It does not require complicated operating skills and high-intensity physical labor, which reduces the requirements for the operator's physical strength and concentration, and improves the efficiency and convenience of hot pressing plate replacement.

[0018] The traditional method of frequently disassembling bolts can easily lead to problems such as bolt hole wear and thread stripping, affecting the structural strength and service life of the equipment. The disassembly method of the present invention reduces damage to the mechanical structure, reduces the degree of wear on the equipment, extends the service life of key components such as the lifting plate and the hot pressing plate, and reduces equipment maintenance and replacement costs; when operating, staff do not need to frequently disassemble and assemble small parts, eliminating the possibility of component loss from the root, which not only ensures the continuity of equipment maintenance, but also reduces the hidden costs caused by missing parts, ensuring that the hot pressing plate replacement process is more efficient and orderly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the present invention;

[0020] Figure 2 A cross-sectional view of a lifting plate of the present invention;

[0021] Figure 3 A cross-sectional view of the connecting block and the lifting rod of the present invention;

[0022] Figure 4 This is a schematic diagram of the specific structure of the top of the lifting plate of the present invention;

[0023] Figure 5 It is a cross-sectional view of the extrusion seat, the first hinge seat and the second hinge seat of the present invention;

[0024] Figure 6 for Figure 5 A in the figure shows the enlarged structure;

[0025] Figure 7This is a structural diagram of the separation of the extrusion seat and the lifting plate of the present invention.

[0026] In the figure: 1-body; 2-hot pressing plate; 3-support rod; 4-support plate; 5-hydraulic cylinder; 6-lifting plate; 7-lower die base; 8-connecting block; 9-mounting groove; 10-round rod; 11-second magnet; 12-adjusting mechanism; 121-rotating ring; 122-extrusion seat; 123-lifting rod; 124-first hinge seat; 125-connecting rod; 126-leverage groove; 127-accommodating groove; 128, second hinge seat; 129-pressure wheel; 130-spring; 131-limiting block; 132-first magnet grid. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1 、 2 As shown in Figures 3 and 4, a rapid heating device for resin molding described in this embodiment includes a body 1, with a lower mold base 7 fixedly connected to the top of the body 1, a number of support rods 3 symmetrically arranged around the body 1, a lifting plate 6 slidingly sleeved on the several support rods 3, the tops of the support rods 3 are commonly fixedly connected to a support plate 4, a hydraulic cylinder 5 is installed on the support plate 4, the output end of the hydraulic cylinder 5 is connected to the middle position of the top of the lifting plate 6, and a hot pressing plate 2 is arranged at the bottom of the lifting plate 6. When in use, the resin raw material can be placed in the lower mold base 7, and then the hydraulic cylinder 5 is started. The output end of the hydraulic cylinder 5 extends downward to drive the lifting plate 6 and the hot pressing plate 2 to move downward, and the support rods 3 serve as the movement guide of the lifting plate 6. When the hot pressing plate 2 is pressed to the top of the lower mold base 7, the resin raw material will be quickly heated and molded, and then the resin molded product can be taken out from the lower mold base 7.

[0029] The hot press plate 2 is fixedly connected to a plurality of symmetrically arranged connecting blocks 8 on all sides. A mounting groove 9 is provided on one side of each connecting block 8. A round rod 10 is fixedly connected to the inside of each mounting groove 9. A second magnet 11 is rotatably connected to the round rod 10, and a rubber layer is provided at the connection between the round rod 10 and the second magnet 11. An adjustment mechanism 12 surrounding the output end of the hydraulic cylinder 5 is also provided on the top of the lifting plate 6. The adjustment mechanism 12 extends through the bottom of the lifting plate 6 and forms a magnetic coupling with the second magnet 11 on the hot press plate 2. When the two are attracted, the hot press plate 2 is limited and fixed. When the magnetic coupling relationship is released (i.e., the adjustment mechanism 12 is separated from the second magnet 11), the fixed state of the hot press plate 2 is released and can be disassembled.

[0030] like Figure 4 、 56, the adjustment mechanism 12 includes a rotating ring 121 rotatably connected to the top of the lifting plate 6, a plurality of lever grooves 126 arranged in an array are provided on the rotating ring 121, and a plurality of extrusion seats 122 are symmetrically arranged around the rotating ring 121. The connection between the extrusion seat 122 and the top of the lifting plate 6 is provided with a slide groove arranged along both sides of the extrusion seat 122, which allows the extrusion seat 122 to move inward and outward along the radial direction of the lifting plate 6, as shown in FIG. Figure 7 A plurality of first hinge seats 124 arranged in an array are fixedly connected to the rotating ring 121 , a second hinge seat 128 is fixedly connected to the outer wall of the extrusion seat 122 , and a connecting rod 125 is hinged between the first hinge seat 124 and the second hinge seat 128 .

[0031] A receiving slot 127 with an open opening and sloping sidewalls is located in the middle of each extrusion seat 122. A lifting rod 123 is provided at the edge of each receiving slot 127. The lifting rod 123 sequentially passes through the extrusion seat 122, the lifting plate 6, and the connecting block 8 on the hot press plate 2. These three elements, along with the lifting rod 123, form a sliding pair, providing a lifting and guiding function. Pressure wheels 129 are rotatably connected to both sides of the top of the lifting rod 123, and the bottom ends of the pressure wheels 129 abut against the sloping outer walls of the corresponding extrusion seat 122. By inserting the crowbar into the lever groove 126 and rotating the rotating ring 121, multiple first hinge seats 124 are driven to rotate together, so that the connecting rod 125 squeezes the second hinge seat 128. At this time, the second hinge seat 128 drives the extrusion seat 122 to move radially outward along the lifting plate 6, and the inclined side wall of the accommodating groove 127 squeezes the pressure wheel 129. As the extrusion seat 122 moves outward, the pressure wheel 129 rolls upward along the inclined side wall of the accommodating groove 127, thereby pushing the lifting rod 123 to rise synchronously.

[0032] like Figure 2 、 3As shown, a radial through hole is provided at the bottom end of the lifting rod 123, and a spring 130 is installed inside the radial through hole. The spring 130 is arranged horizontally and can elastically expand and contract inwardly. A limiting block 131 connected to the free end of the spring 130 is also provided in the radial through hole of the lifting rod 123. The limiting block 131 is slidingly connected to the lifting rod 123 through the expansion and contraction of the spring 130; when the spring 130 contracts inwardly, it will drive the limiting block 131 to retract into the interior of the lifting rod 123, and when the spring 130 is in a free state, the limiting block 131 can be retracted into the interior of the lifting rod 123 as a whole. One end of each stop block 131 is fixedly connected to a first magnet 132. The specific shape of the first magnet 132 is triangular, and the specific shape of the second magnet 11 is square. One end of the first magnet 132 is set as the south pole, and the second magnet 11 is set as the north pole at the position corresponding to the south pole of the first magnet 132. The first magnet 132 and the second magnet 11 are connected together by different-level magnetic attraction forces to form a magnetic circuit closed system. The magnetic attraction between the first magnet 132 and the second magnet 11 is higher than the elastic performance of the spring 130. When the first magnet 132 and the second magnet 11 are magnetically connected, they can generate a strong attraction force. The spring 130 is stretched, and the top ends of the first magnet 132 and the stop block 131 are both in contact with the bottom end of the connecting block 8, ensuring that the hot pressing plate 2 and the lifting plate 6 are tightly connected, thereby improving the stability and reliability of the entire system. When the spring 130 is compressed, the first magnet 132 can be completely retracted into the lifting rod 123.

[0033] Working principle: During use, when the hot pressing plate 2 needs to be replaced, the second magnet 11 can be rotated upward one by one. The elastic performance of the spring 130 is lower than the magnetic attraction between the first magnet 132 and the second magnet 11. When the first magnet 132 is magnetically connected to the second magnet 11, the spring 130 is in a stretched state. At this time, the second magnet 11 will rotate upward with the round rod 10 as the center of the circle. After the second magnet 11 is rotated upward by 90°, the rubber layer at the connection between the second magnet 11 and the round rod 10 can ensure that the position of the second magnet 11 remains unchanged. At this time, the first magnet 132 is no longer magnetically connected to the second magnet 11. At this time, the spring 130 will drive the limit block 131 to retract into the inside of the lifting rod 123. When the spring 130 is retracted and is in a free state, the limit block 131 When the lifting rod 123 is fully retracted, the inclined outer wall of the first magnet 132 is still in contact with the bottom end of the connecting block 8. At this time, the crowbar needs to be inserted into the lever groove 126, and then the rotating ring 121 is rotated through the lever groove 126. The rotation of the rotating ring 121 will drive multiple first hinge seats 124 to rotate together. The first hinge seat 124 rotates with the rotating ring 121, which will cause the connecting rod 125 to squeeze the second hinge seat 128. The second hinge seat 128 drives the extrusion seat 122 to move radially outward along the lifting plate 6. The inclined side wall of the accommodating groove 127 squeezes the pressure wheel 129. As the extrusion seat 122 moves outward, the pressure wheel 129 rolls upward along the inclined side wall of the accommodating groove 127, thereby pushing the lifting rod 123 to rise synchronously. When the lifting rod 123 moves upward, the outer wall of the first magnet 132 tilts to squeeze the bottom end of the connecting block 8. At this time, the spring 130 is squeezed, thereby driving the first magnet 132 to completely retract into the inside of the lifting rod 123 during the upward movement of the lifting rod 123. When the lifting rod 123 retracts to the inside of the lifting plate 6 corresponding to the position of the first magnet 132, the hot pressing plate 2 is disassembled.

[0034] During installation, it is only necessary to place the top of the hot pressing plate 2 close to the bottom of the lifting plate 6, and then reinsert the lifting rod 123 into the interior of the connecting block 8 by rotating the ring 121, so that the lifting rod 123 moves to the bottom of the connecting block 8 corresponding to the position of the first magnet 132. At this time, the spring 130 drives the first magnet 132 to protrude from the inside of the lifting rod 123, and the outer wall of the first magnet 132 is tilted to abut against the bottom of the connecting block 8; then the second magnet 11 is rotated and reset again, and the first magnet 132 is magnetically connected to the second magnet 11. The movement of the first magnet 132 toward the second magnet 11 will drive the limit block 131 to protrude from the inside of the lifting rod 123, and the limit block 131 will stretch the spring 130. At this time, the top of the limit block 131 and the top of the first magnet 132 are simultaneously in contact with the bottom of the connecting block 8, and the hot pressing plate 2 is fixed. There is no need to frequently disassemble and assemble small parts during operation, which eliminates the possibility of component loss from the root, ensuring the continuity of equipment maintenance, reducing the hidden costs caused by missing parts, and making operation more convenient.

Claims

1. A resin molding rapid heating device, characterized in that: The invention comprises a machine body (1), wherein the top of the machine body (1) is fixedly connected to a lower die base (7), a plurality of support rods (3) are symmetrically arranged around the machine body (1), a lifting plate (6) is slidably sleeved on the plurality of support rods (3), the tops of the support rods (3) are fixedly connected to a support plate (4), a hydraulic cylinder (5) is installed on the support plate (4), the output end of the hydraulic cylinder (5) is connected to the middle position of the top of the lifting plate (6), a hot pressing plate (2) is arranged at the bottom of the lifting plate (6), the hot pressing plate (2) is fixedly connected to a plurality of symmetrically arranged connecting blocks (8) around the hot pressing plate (2), a mounting groove (9) is provided on one side of the connecting block (8), a round rod (10) is fixedly connected inside the mounting groove (9), and a second magnet (11) is rotatably connected to the round rod (10); An adjustment mechanism (12) is provided on the top of the lifting plate (6) for forming a magnetic attraction coupling with the second magnet (11) on the hot pressing plate (2), the adjustment mechanism (12) comprising a rotating ring (121) rotatably connected to the top of the lifting plate (6), a plurality of extrusion seats (122) capable of moving radially inward and outward along the lifting plate (6) are symmetrically arranged around the rotating ring (121), and the rotating ring (121) and the extrusion seats (122) are hingedly connected via a connecting rod (125); A receiving groove (127) with an open opening and inclined side walls is provided at the middle position of the extrusion seat (122), and a lifting rod (123) is provided at the edge of the receiving groove (127). The lifting rod (123) passes through the extrusion seat (122), the lifting plate (6) and the connecting block (8) on the hot pressing plate (2) in sequence, and a sliding pair is formed between the three and the lifting rod (123) to realize the lifting and guiding function; pressure wheels (129) are rotatably connected to both sides of the top of the lifting rod (123), and the bottom ends of the pressure wheels (129) are in contact with the inclined outer walls of the corresponding extrusion seat (122); A radial through hole is provided at the bottom end of the lifting rod (123), a spring (130) is installed inside the radial through hole, the spring (130) is arranged in the transverse direction and can elastically expand and contract inwardly, a limiting block (131) connected to the free end of the spring (130) is also provided in the radial through hole of the lifting rod (123), and one end of the limiting block (131) is fixedly connected to a first triangular magnet (132); The first magnet (132) and the second magnet (11) are connected together by the magnetic attraction of different levels to form a magnetic circuit closed system. When the two are attracted, the spring (130) is stretched, and the top of the first magnet (132) and the limit block (131) are in contact with the bottom of the connecting block (8) to achieve the limitation and fixation of the hot pressing plate (2); when the magnetic attraction coupling relationship is released, the spring (130) is in a free state, the limit block (131) can be retracted into the lifting rod (123) as a whole, and the fixed state of the hot pressing plate (2) is released; by rotating the rotating ring (121), the hot pressing plate (2) is released. The movable extrusion seat (122) moves radially outwardly along the lifting plate (6), and the inclined side wall of the accommodating groove (127) squeezes the pressure wheel (129). As the extrusion seat (122) moves outward, the pressure wheel (129) rolls upward along the inclined side wall of the accommodating groove (127), thereby pushing the lifting rod (123) to rise synchronously. The inclined outer wall of the first magnet (132) squeezes the bottom end of the connecting block (8), and the spring (130) is compressed. The first magnet (132) can be retracted into the interior of the lifting rod (123) as a whole, completing the disassembly of the hot pressing plate (2).

2. A resin molding rapid heating device according to claim 1, characterized in that: The rotating ring (121) is fixedly connected to a plurality of first hinge seats (124) arranged in an array, the outer wall of the extrusion seat (122) is fixedly connected to a second hinge seat (128), and a connecting rod (125) is hinged between the first hinge seat (124) and the second hinge seat (128).

3. A resin molding rapid heating device according to claim 2, characterized in that: The rotating ring (121) is provided with a plurality of lever grooves (126) arranged in an array. When a crowbar is inserted into the lever groove (126) to rotate the rotating ring (121), the plurality of first hinge seats (124) are driven to rotate together, so that the connecting rod (125) squeezes the second hinge seat (128). At this time, the second hinge seat (128) drives the squeezing seat (122) to move outward along the radial direction of the lifting plate (6).

4. The resin molding rapid heating device according to claim 1, characterized in that: A rubber layer is provided at the connection between the round rod (10) and the second magnet (11).

5. The resin molding rapid heating device according to claim 1, characterized in that: The magnetic attraction between the first magnet (132) and the second magnet (11) is higher than the elastic performance of the spring (130).

6. The resin molding rapid heating device according to claim 1, characterized in that: The connection between the extrusion seat (122) and the top of the lifting plate (6) is provided with sliding grooves arranged along both sides of the extrusion seat (122).

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