Furnace door opening and closing mechanism of slush molding equipment
By optimizing the furnace door opening and closing mechanism of the slush molding equipment and adopting components such as cylinders, racks and pinions, and chain drives, the precise opening and closing and positioning sensing of the furnace door are achieved, solving the problems of structural complexity and safety of traditional devices, and improving production efficiency and equipment stability.
Patent Information
- Application Number
- CN202520400104.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-10
AI Technical Summary
The traditional furnace door opening and closing device of slush molding equipment has a complicated structure, which leads to high difficulty in equipment assembly and maintenance, low production efficiency, easy damage, and affects product quality. In addition, it lacks accurate position monitoring and safety protection.
The system employs components such as cylinders, racks, chains, and micro-motion sensors to achieve precise opening and closing of the furnace door and position sensing. Combined with buffer components, it prevents equipment collisions and improves equipment stability and safety.
It improves production efficiency, reduces equipment wear, ensures stable product quality, prevents equipment collision damage, and enhances automation and intelligent control.
Smart Images
Figure CN223849769U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of automobile ornament manufacturing, specifically relates to a furnace door opening and closing mechanism of slush molding equipment. BACKGROUND
[0002] In the slush molding process of automobile interior decoration, the furnace door opening and closing operation is frequent, the traditional furnace door opening and closing device is generally complicated in structure, the complex combination of numerous parts leads to high equipment assembly and maintenance difficulty, high cost, and mechanical failure caused by complex structure, affecting production continuity, the operation process is long and complex, and production efficiency is seriously reduced, so it is difficult to adapt to the rhythm of large-scale and rapid production of modern automobile interior decoration. Large vibration often occurs during the opening and closing process, accelerates the wear of equipment parts, shortens the service life of the equipment, and at the same time, disturbs the stability of temperature, pressure and other parameters of the slush molding process, causing product quality fluctuations. In addition, the traditional device lacks precise furnace door position monitoring and safety protection mechanism, and equipment collision damage accidents caused by furnace door opening and closing out of position easily occur, causing economic losses to enterprises. CONTENT OF THE UTILITY MODEL
[0003] To solve the above problems in the prior art, the utility model provides a furnace door opening and closing mechanism of slush molding equipment, which is optimized in structure, convenient to operate, efficient, stable, safe and reliable, improves production efficiency and comprehensive performance of the equipment.
[0004] To achieve the above object, the utility model provides the following technical scheme: a furnace door opening and closing mechanism of slush molding equipment, including power output assembly, guide transmission assembly, chain transmission assembly, furnace door connecting assembly and in-place sensing assembly, the power output assembly is fixed on the outer wall of the furnace body, the guide transmission assembly is fixed on the upper end of the power output assembly, the lower part of the chain transmission assembly is connected with the guide transmission assembly, the upper surface of the chain transmission assembly is connected with the furnace door through the furnace door connecting assembly and drives the furnace door to open and close, the in-place sensing assembly is arranged on one side of the upper part of the chain transmission assembly, the power output assembly outputs power to the guide transmission assembly, the guide transmission assembly transmits power to the chain transmission assembly, the chain transmission assembly drives the furnace door to open and close, the edge of the furnace door connecting assembly touches the in-place sensing assembly, so that the furnace door is closed in place and opened in place, and the furnace door stops moving.
[0005] Further, the power output assembly includes a cylinder, a rack, an L-shaped fixed plate, a cylinder mounting plate, a fixed plate, a square steel and a square steel fixing seat, the cylinder is fixed on the fixed table of the outer wall of the equipment through the cylinder mounting plate below, the cylinder is fixed on the square steel on the back side through the L-shaped fixed plate above, the square steel is fixed on the furnace body through the square steel fixing seat on both sides of the top end and is fixed on the fixed table of the outer wall of the equipment through the fixed plate on the bottom end, the lower end of the rack is connected with the piston rod on the cylinder, and the upper part is connected with the guide transmission assembly.
[0006] Further, the guide transmission assembly comprises guide fixed plates, rear guide bearing assemblies, side guide bearing assemblies, bearing seats, a transmission gear and an output shaft. The guide fixed plates are arranged as two plates and fixed to the upper side of the square steel at the rear side. The transmission gear is arranged between the front parts of the two guide fixed plates, and the output shaft passes through the guide fixed plates and the transmission gear in sequence. The bearing seats are passed through by the output shaft and fixed to the outer side walls of the two guide fixed plates. The upper part of the rack passes through the middle of the two guide fixed plates and is engaged with the transmission gear. The rack is located behind the transmission gear. The rear guide bearing assemblies are in contact with the rear of the rack and fixed to the rear parts of the two guide fixed plates. The side guide bearing assemblies are fixed to the two guide fixed plates and in contact with the two sides of the rack.
[0007] Further, the chain transmission assembly comprises a driving sprocket, a chain, two driven sprockets, a tension sprocket, a sprocket fixed seat A and a sprocket fixed seat B. The driving sprocket is connected with one end of the output shaft. The two driven sprockets are fixed to one side edge of the sprocket fixed seat A and one side edge of the sprocket fixed seat B respectively. The tension sprocket is fixed to one side edge of the sprocket fixed seat B and located below the driven sprocket on the same side. The chain is connected with the driving sprocket and the two driven sprockets in sequence and in contact with the tension sprocket at the outer side of the middle part of the chain, so that the chain is in L shape. The sprocket fixed seat A is fixed to one side edge of the upper part of the equipment. The sprocket fixed seat B is fixed to the side wall of the top of the furnace body.
[0008] Further, the furnace door connecting assembly comprises a T-shaped connecting piece, a U-shaped connecting piece and a sensor triggering baffle. The T-shaped connecting piece is fixed to the middle of the lower part of the U-shaped connecting piece. The sensor triggering baffle is fixed to one side edge of the T-shaped connecting piece. The T-shaped connecting piece is connected with the upper part of the chain. The U-shaped connecting piece is fixed to the lower part of the side edge of the furnace door. The furnace door moves together with the chain through the furnace door connecting assembly.
[0009] Further, the in-place sensing assembly comprises a cross beam, micro-motion sensors and sensor fixed supports. The sensor fixed supports are arranged as two and fixed to the front and rear sides of the cross beam respectively. The micro-motion sensors are fixed to the two sensor fixed supports. One end of the cross beam is fixed to one side edge of the upper part of the equipment, and the other end is fixed to the side wall of the top of the furnace body. The two micro-motion sensors are located above the side edges of the two driven sprockets respectively.
[0010] Further, the opening and closing mechanism further comprises a buffer assembly. The buffer assembly comprises a buffer rod, a guide sleeve, a buffer fixed seat, a buffer mounting plate and a spring. The buffer assembly is fixed to the four corners of the upper part of the equipment. The buffer mounting plate is fixed to the corner of the upper part of the equipment. The buffer fixed seat is fixed to the buffer mounting plate. One end of the buffer rod is fixed to the side of the buffer fixed seat through the guide sleeve. The spring is sleeved on the buffer rod.
[0011] Compared with the prior art, the utility model discloses the beneficial effect is: the utility model discloses the stable connection of cylinder telescopic link and rack, ensure that cylinder telescopic can drive rack along straight line reciprocating motion accurately, and rack and gear are closely engaged, according to gear drive principle, the linear motion of rack is efficiently converted into the rotary motion of gear, and keep stable transmission ratio, and the gear is installed on the output shaft, and through reliable key connection or tight fit mode, stably transfer rotary power to driving sprocket, make it rotate, and the driving sprocket constructs transmission chain with chain and two driven sprockets, and the furnace door is firmly installed on the chain, and based on the chain wheel chain drive characteristic, the driving sprocket rotates and drives the chain and driven sprocket to operate cooperatively, realize the stable opening and closing of furnace door, set up the microsensor at the limit position of furnace door opening and closing stroke respectively, based on sensitive mechanical trigger or induction principle, when furnace door reaches the predetermined position, triggers microsensor action, and sends signal to control system rapidly, and control system adjusts equipment operating state in time accordingly, effectively prevent the equipment collision damage caused by furnace door opening and closing not in position, set up the buffer assembly at the contact part of furnace door and surrounding structure, utilize its elastic deformation or damping action, absorb the impact force of furnace door opening and closing in position instant, protect equipment parts from impact damage, further improve the stability and safety of equipment operation, significantly enhance the automation and intelligent control level of production process. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0013] Figure 2 It is the side structure schematic diagram of the utility model;
[0014] Figure 3 It is the power output assembly structure schematic diagram of the utility model;
[0015] Figure 4 It is the guide transmission assembly structure schematic diagram of the utility model;
[0016] Figure 5 It is the chain transmission assembly structure schematic diagram of the utility model;
[0017] Figure 6 It is the furnace door connecting assembly structure schematic diagram of the utility model;
[0018] Figure 7 It is the in-position induction assembly structure schematic diagram of the utility model;
[0019] Figure 8 It is the buffer assembly structure schematic diagram of the utility model. DETAILED DESCRIPTION
[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of the present application.
[0021] Please refer to Figures 1-2 The present application provides the following technical solutions: a furnace door opening and closing mechanism of a slush molding equipment, the equipment has two furnace doors 9, the two furnace doors 9 are arranged on a furnace frame 8 on the top of the equipment, the area of the furnace frame 8 is greater than the area of the opening on the top of the equipment, so that the movement of the furnace doors 9 on the furnace frame 8 can realize the closing and opening of the furnace doors 9 on the equipment, the opening and closing mechanism is arranged on both sides of the equipment and connected with the lower edge of the furnace doors 9, the opening and closing mechanism comprises a power output assembly 1, a guide transmission assembly 2, a chain transmission assembly 3, a furnace door connecting assembly 4 and a position sensing assembly 5, the power output assembly 1 is fixed on the outer wall of a furnace body 7, the guide transmission assembly 2 is fixed on the upper end of the power output assembly 1, the lower part of the chain transmission assembly 3 is connected with the guide transmission assembly 2, the upper part of the chain transmission assembly 3 is connected with the furnace doors 9 through the furnace door connecting assembly 4 and drives the opening and closing of the furnace doors 9, the position sensing assembly 5 is arranged on one side of the upper part of the chain transmission assembly 3, the power output assembly 1 outputs power to the guide transmission assembly 2, the guide transmission assembly 2 transmits power to the chain transmission assembly 3, the chain transmission assembly 3 drives the opening and closing of the furnace doors 9, the edge of the furnace door connecting assembly 4 touches the position sensing assembly 5, so as to realize the closing and opening of the furnace doors 9 to the position, when the furnace doors 9 are closed to the position or opened to the position, the furnace doors 9 stop moving, which effectively prevents the equipment from being damaged due to the opening and closing of the furnace doors to the position.
[0022] Specifically, please refer to Figure 3The power output assembly 1 includes a cylinder 1a, a rack 1b, an L-shaped fixing plate 1c, a cylinder mounting plate 1d, a fixing plate 1e, a square steel 1f, and a square steel fixing seat 1g. The cylinder 1a is fixed to a fixed platform on the outer wall of the equipment via the cylinder mounting plate 1d. The cylinder 1a is fixed to the rear square steel 1f via the L-shaped fixing plate 1c. The bottom surface of the L-shaped fixing plate 1c is fixed to the cylinder 1a, and the sides of the L-shaped fixing plate 1c are fixed to the square steel 1f. The top two sides of the square steel 1f are fixed to the furnace body 7 via the square steel fixing seat 1g, and the bottom end is fixed to the equipment via the fixing plate 1e. On the fixing platform on the outer wall, the fixing plate 1e is located below the cylinder mounting plate 1d, thus fixing the square steel 1f to the outer wall of the furnace body 7. The cylinder 1a is fixed on the fixing platform of the square steel 1f and the outer wall of the equipment, and is firmly fixed. The lower end of the rack 1b is directly connected to the piston rod on the cylinder 1a through the threaded hole, and the upper part is connected to the guide transmission assembly 2. The piston rod on the cylinder 1a passes through the fixing plate 1c, and then the lower end of the rack 1b is connected to the piston rod on the cylinder 1a. The piston rod of the cylinder 1a and the rack 1b are firmly connected, ensuring that the cylinder 1a can accurately drive the rack 1b to reciprocate in a straight line when it extends and retracts.
[0023] For details, please refer to Figure 4 The guide transmission assembly 2 includes a guide fixing plate 2a, a rear guide bearing assembly, a side guide bearing assembly, a bearing seat 2b, a transmission gear 2c, and an output shaft 2d. The guide fixing plate 2a consists of two parts, left and right, with its rear side fixed to the upper side of the square steel 1f. The transmission gear 2c is movably disposed between the front parts of the two guide fixing plates 2a, and the output shaft 2d passes through the guide fixing plate 2a and the transmission gear 2c in sequence. The bearing seat 2b is passed through by the output shaft 2d and fixed to the two outer side walls of the two guide fixing plates 2a. The bearing seat 2b fixes the positions of the transmission gear 2c and the output shaft 2d so that when the transmission gear 2c and the output shaft 2d rotate, they will not deflect to the left or right. One end of the output shaft 2d protrudes from the side of the outer side wall of the guide fixing plate 2a. The upper part of the rack 1b passes through the middle of the two guide fixing plates 2a and meshes with the transmission gear 2c. The rack 1b is located at the center of the transmission gear 2c. Behind the rack 1b, the reciprocating motion of the rack 1b drives the transmission gear 2c to rotate in both directions. In this embodiment, two rear guide bearing assemblies and four side guide bearing assemblies are provided. The rear guide bearing assemblies are in contact with the rear of the rack 1b and are fixed to the upper and lower sides of the rear of the two guide fixing plates 2a. Side guide bearing assemblies are fixed on both guide fixing plates 2a and are in contact with the two sides of the rack 1b. Side guide bearing assemblies are fixed at the top and bottom of each guide fixing plate 2a and the side guide bearing assemblies on the two guide fixing plates 2a are symmetrical. The rear guide bearing assemblies and side guide bearing assemblies are used to guide the rack 1b to make smooth linear motion. Then the rack 1b meshes tightly with the transmission gear 2c, efficiently converting the linear motion of the rack 1b into the rotational motion of the transmission gear 2c and maintaining a stable transmission ratio.
[0024] Specifically, please refer to Figure 5 , the chain transmission assembly 3 includes a driving sprocket 3a, a chain 3b, two driven sprockets 3c, a tension sprocket 3d, a sprocket fixing seat A 3e and a sprocket fixing seat B 3f, the driving sprocket 3a is connected with one end of the output shaft 2d, the driving sprocket 3a is connected with the output shaft 2d protruding on the side of the outer wall of the guide fixing plate 2a, the output shaft 2d rotates to drive the driving sprocket 3a to rotate, the two driven sprockets 3c are fixed on one side of the sprocket fixing seat A 3e and one side of the sprocket fixing seat B 3f respectively, the tension sprocket 3d is fixed on one side of the sprocket fixing seat B 3f and located below the driven sprocket 3c on the same side, the two driven sprockets 3c and the tension sprocket 3d are on the same side, the tension sprocket 3d is arranged to adjust the tightness of the chain 3b, the chain 3b is connected on the driving sprocket 3a and the two driven sprockets 3c in turn and the outer side of the middle part of the chain 3b is in contact with the tension sprocket 3d so that the chain 3b is in L shape, the sprocket fixing seat A 3e is fixed on one side of the upper surface of the equipment, the sprocket fixing seat B 3f is fixed on the side wall of the top of the furnace body 7, the sprocket fixing seat A 3e is fixed on the outer side of the furnace frame 8, and the sprocket fixing seat A 3e and the sprocket fixing seat B 3f are fixed to make the upper surface of the chain 3b horizontal and perpendicular to the side of the furnace frame 8, so as to ensure smooth translation of the furnace door 9, the driving sprocket 3a drives the chain 3b and the driven sprocket 3c to rotate cooperatively based on the chain sprocket transmission characteristics, and the furnace door 9 is stably opened and closed.
[0025] Specifically, please refer to Figure 6 , the furnace door connecting assembly 4 includes a T-shaped connecting piece 4a, a U-shaped connecting piece 4b and a sensor triggering baffle 4c, the T-shaped connecting piece 4a is fixed in the middle of the lower part of the U-shaped connecting piece 4b, the sensor triggering baffle 4c is fixed on one side of the T-shaped connecting piece 4a, the T-shaped connecting piece 4a is connected with the upper surface of the chain 3b, and the U-shaped connecting piece 4b is fixed below the side edge of the furnace door 9. The furnace door 9 moves together with the chain 3b through the furnace door connecting assembly 4.
[0026] Specifically, please refer to Figure 7The in-place sensing assembly 5 comprises a crossbeam 5a, a micro-motion sensor 5b and a sensor fixing bracket 5c. The sensor fixing bracket 5c is arranged at two sides of the crossbeam 5a, and the micro-motion sensor 5b is fixed on the two sensor fixing brackets 5c. The micro-motion sensor 5b is arranged at the limit position in the opening and closing stroke of the furnace door 9, i.e. the position of the furnace door 9 closing to the in-place position and opening to the in-place position. One end of the crossbeam 5a is fixed on one side of the equipment, and the other end is fixed on the side wall of the top of the furnace body 7. The one end of the crossbeam 5a is fixed on the outside of the furnace frame 8. After the crossbeam 5a is fixed, the two micro-motion sensors 5b are respectively located above the two driven sprockets 3c. The crossbeam 5a is perpendicular to the side of the furnace frame 8. The chain 3b drives the furnace door 9 to move through the furnace door connecting assembly 4. When the furnace door 9 is closing, the sensor trigger baffle 4c under the furnace door 9 touches the micro-motion sensor 5b on one side of the crossbeam 5a. The micro-motion sensor 5b quickly sends a signal to the control system, and the control system adjusts the equipment operation state in time according to the signal. When the furnace door 9 is opening, the sensor trigger baffle 4c under the furnace door 9 touches the micro-motion sensor 5b on the other side of the crossbeam 5a. The micro-motion sensor 5b quickly sends a signal to the control system, and the control system adjusts the equipment operation state in time according to the signal, thereby effectively preventing the equipment from being damaged due to the furnace door 9 not being opened or closed to the in-place position.
[0027] Specifically, please refer to Figure 8 The opening and closing mechanism further comprises a buffer assembly 6. The buffer assembly 6 comprises a buffer rod 6a, a guide sleeve 6b, a buffer fixing seat 6c, a buffer mounting plate 6d and a spring 6e. The buffer assembly 6 is fixed on the four corners of the equipment, i.e. the four corners of the furnace frame 8. The buffer mounting plate 6d is fixed on the corner of the equipment, i.e. the corner of the furnace frame 8. The buffer fixing seat 6c is fixed on the buffer mounting plate 6d. One end of the buffer rod 6a is fixed on the side of the buffer fixing seat 6c through the guide sleeve 6b. The buffer rod 6a is sleeved with the spring 6e. The buffer rod 6a can be compressed and retracted. When the furnace door 9 is opened to the limit position, the side of the furnace door 9 first touches the buffer rod 6a at the corner of the furnace frame 7. The buffer rod 6a is first compressed and retracted, and then the spring 6e is compressed after the buffer rod 6a retracts. The spring 6e absorbs the impact force of the furnace door 9.
[0028] The utility model discloses a movement process is: when needing to close furnace door 9, both sides's cylinder 1a drive rack 1b to move down linearly, and transmission gear 2c is driven to one side of furnace body 7 with rack, thereby sequentially drive output shaft 2d, driving sprocket 3a, chain 3b and two driven sprocket 3c all rotate to one side of furnace body 7, therefore both sides' chain 3b drive two furnace doors 9 to move to one side of furnace body 7, when sensor trigger baffle 4c touches micro-motion sensor 5b, micro-motion sensor 5b sends signal to control system rapidly, and control system stops equipment operation in time accordingly, and two furnace doors 9 close equipment opening, and two furnace doors 9 do not collide also, when needing to open furnace door 9, both sides's cylinder 1a drive rack 1b to move up linearly, and transmission gear 2c is driven to the side away from furnace body 7 with rack, thereby sequentially drive output shaft 2d, driving sprocket 3a, chain 3b and two driven sprocket 3c all rotate to the side away from furnace body 7, therefore both sides' chain 3b drive two furnace doors 9 to move to the side away from furnace body 7, when sensor trigger baffle 4c touches micro-motion sensor 5b, micro-motion sensor 5b sends signal to control system rapidly, and control system stops equipment operation in time accordingly, and two furnace doors 9 open equipment opening, and the buffer assembly 6 is arranged on four corners of furnace frame 8, and the edge of furnace door 9 first touches the buffer rod 6a in the corner of furnace frame 7, and the buffer rod 6a is compressed back first, then buffer rod 6a is compressed spring 6e after back-off, and spring 6e absorbs the impact force of furnace door 9, and furnace door 9 and furnace frame 8 do not collide, improve production safety. In addition, the guide wheel 10 is arranged on the upper two sides of furnace door 9, the tooth mark 11 is arranged on both sides of furnace frame 8, the gear 12 is placed on the tooth mark 11, and both sides' guide wheel 10 and gear 12 are connected with connecting rod, can alleviate the burden of chain 3b drive two furnace doors 9 to move, promote furnace door 9 to move.
[0029] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.
Claims
1. A furnace door opening and closing mechanism of a slush molding apparatus, characterized by comprising: The utility model provides a kind of stove door opening and closing device, including power output component (1), guide transmission component (2), chain transmission component (3), furnace door connecting component (4) and in-place induction component (5), the power output component (1) is fixed on the outer wall of furnace body (7), the guide transmission component (2) is fixed on the upper end of power output component (1), the lower part of chain transmission component (3) is connected with guide transmission component (2), the upper surface of chain transmission component (3) is connected with furnace door (9) by furnace door connecting component (4) and drives furnace door (9) to open and close, in-place induction component (5) is arranged on the upper part of one side of chain transmission component (3), the power output component (1) outputs power to guide transmission component (2), guide transmission component (2) transmits power to chain transmission component (3), chain transmission component (3) drives furnace door (9) to open and close, and the edge of furnace door connecting component (4) touches in-place induction component (5) to realize the closing in-place and opening in-place of furnace door (9), so that furnace door (9) stops moving.
2. A flask door opening and closing mechanism of an slush molding apparatus according to claim 1, wherein The power output component (1) includes a cylinder (1a), a rack (1b), an L-shaped fixing plate (1c), a cylinder mounting plate (1d), a fixing plate (1e), a square steel (1f), and a square steel fixing seat (1g). The cylinder (1a) is fixed to the fixed table of the outer wall of the equipment through the cylinder mounting plate (1d) below the cylinder (1a). The cylinder (1a) is fixed to the square steel (1f) on the back side through the L-shaped fixing plate (1c) above the cylinder (1a). The top end of the square steel (1f) is fixed to the furnace body (7) through the square steel fixing seat (1g) on both sides, and the bottom end is fixed to the fixed table of the outer wall of the equipment through the fixing plate (1e). The lower end of the rack (1b) is directly connected to the piston rod on the cylinder (1a), and the upper part is connected to the guide transmission component (2).
3. A flask door opening and closing mechanism of an slush molding apparatus according to claim 2, wherein The guide transmission component (2) includes guide fixing plates (2a), a rear guide bearing assembly, a side guide bearing assembly, a bearing seat (2b), a transmission gear (2c), and an output shaft (2d). The guide fixing plates (2a) are arranged as two pieces and are fixed to the upper side of the square steel (1f) on the back side. The transmission gear (2c) is arranged between the front parts of the two guide fixing plates (2a), and the output shaft (2d) passes through the guide fixing plates (2a) and the transmission gear (2c) in sequence. The bearing seat (2b) is passed through by the output shaft (2d) and is fixed to the two outer side walls of the two guide fixing plates (2a). The upper part of the rack (1b) passes through the middle of the two guide fixing plates (2a) and is engaged with the transmission gear (2c). The rack (1b) is located behind the transmission gear (2c). The rear guide bearing assembly contacts the rear of the rack (1b) and is fixed to the rear part of the two guide fixing plates (2a). The side guide bearing assembly is fixed to both of the guide fixing plates (2a) and contacts the two sides of the rack (1b).
4. A flask door opening and closing mechanism of a slush molding apparatus according to claim 3, wherein The chain transmission assembly (3) comprises a driving sprocket (3a), a chain (3b), two driven sprockets (3c), a tension sprocket (3d), a sprocket fixing seat A (3e) and a sprocket fixing seat B (3f), the driving sprocket (3a) is connected with one end of the output shaft (2d), the two driven sprockets (3c) are respectively fixed on one side of the sprocket fixing seat A (3e) and one side of the sprocket fixing seat B (3f), the tension sprocket (3d) is fixed on one side of the sprocket fixing seat B (3f), and the tension sprocket (3d) is located below the driven sprocket (3c) on the same side, the chain (3b) is connected on the driving sprocket (3a) and the two driven sprockets (3c) in sequence, and the outer side of the middle part of the chain (3b) is in contact with the tension sprocket (3d), so that the chain (3b) is L-shaped, the sprocket fixing seat A (3e) is fixed on one side of the upper surface of the equipment, and the sprocket fixing seat B (3f) is fixed on the side wall at the top of the furnace body (7).
5. A flask door opening and closing mechanism of an slush molding apparatus according to claim 4, wherein The furnace door connecting assembly (4) comprises a T-shaped connecting piece (4a), a U-shaped connecting piece (4b) and a sensor triggering baffle (4c), the T-shaped connecting piece (4a) is fixed in the middle of the lower part of the U-shaped connecting piece (4b), the sensor triggering baffle (4c) is fixed on one side of the T-shaped connecting piece (4a), the T-shaped connecting piece (4a) is connected with the upper surface of the chain (3b), the U-shaped connecting piece (4b) is fixed below the side edge of the furnace door (9), and the furnace door (9) moves together with the chain (3b) through the furnace door connecting assembly (4).
6. A flask door opening and closing mechanism of an slush molding apparatus according to claim 5, wherein The in-place sensing assembly (5) comprises a cross beam (5a), a micro-motion sensor (5b) and a sensor fixing support (5c), the sensor fixing support (5c) is provided as two and is respectively fixed on the front and rear sides of the cross beam (5a), the micro-motion sensor (5b) is fixed on the two sensor fixing supports (5c), one end of the cross beam (5a) is fixed on one side of the upper surface of the equipment, the other end is fixed on the side wall at the top of the furnace body (7), and the two micro-motion sensors (5b) are respectively located above the side edges of the two driven sprockets (3c).
7. A flask door opening and closing mechanism of an slush molding apparatus according to claim 6, wherein The opening and closing mechanism further comprises a buffer assembly (6), the buffer assembly (6) comprises a buffer rod (6a), a guide sleeve (6b), a buffer fixing seat (6c), a buffer mounting plate (6d) and a spring (6e), the buffer assembly (6) is fixed on the four corners of the upper surface of the equipment, the buffer mounting plate (6d) is fixed at the corner of the upper surface of the equipment, the buffer fixing seat (6c) is fixed on the buffer mounting plate (6d), one end of the buffer rod (6a) is fixed on the side of the buffer fixing seat (6c) through the guide sleeve (6b), and the spring (6e) is sleeved on the buffer rod (6a).