Lifting driving structure of vertical curing oven and curing oven
By using chain drive and linkage reduction mechanism to drive the material frame lifting, the problem of ball screw not being resistant to high temperature is solved, realizing efficient and low-cost operation of vertical curing oven and simplified installation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-10
AI Technical Summary
The ball screws in existing vertical curing ovens are not heat-resistant, resulting in complex structures, high costs, and difficult maintenance, which limits their further development and promotion.
The material frame is lifted and lowered using a chain drive combined with a linkage reduction mechanism. The mechanism includes a servo motor, a linkage reduction mechanism, a lifting chain assembly, a lower tension sprocket assembly, and a guide shaft assembly. The structure is simple and resistant to high temperatures, which reduces the installation accuracy requirements and maintenance costs.
It achieves stable operation in high-temperature environments, reduces manufacturing and maintenance costs, improves production efficiency, and simplifies the installation and commissioning process.
Smart Images
Figure CN223983413U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of curing equipment technology, and in particular to a lifting drive structure for a vertical curing oven. Background Technology
[0002] Currently, in the electronics industry, vertical curing ovens are key heat treatment equipment for the packaging and curing process. They primarily use precise temperature and time control to cure materials and, through drying or cross-linking reactions, ensure product performance and stability. Common vertical curing ovens are categorized based on the product conveying method: "U"-shaped vertical curing ovens (in the heating zone, the product travels a path resembling an "U" shape to complete the curing process) and frame-type vertical curing ovens (in the heating zone, products are vertically stacked within a frame; the frame reciprocates to complete feeding and discharging, completing the curing process; the lifting drive structure enables the frame to reciprocate).
[0003] Existing manufacturers mostly use a vertically mounted ball screw to drive the material frame to reciprocate and lift. However, ball screws are not heat-resistant and can only be placed outside the heating zone, while the material frame is inside. To achieve power transmission, a transition structure is required, and the transition point needs further movable sealing and other structures to prevent the leakage of hot air from the heating zone, thus increasing the complexity of the structure. Ball screws require high precision, which places strict requirements on manufacturing accuracy. Installation and debugging are time-consuming, and maintenance is difficult, further increasing manufacturing and maintenance costs. All these defects seriously limit the further development and application of this field.
[0004] In view of this, the purpose of this utility model is to provide a new technical solution to solve the existing technical defects. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a vertical curing oven lifting drive structure and curing oven, which can effectively solve the shortcomings of the existing technology such as poor high temperature resistance, high manufacturing cost, complex structure and difficult maintenance.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] A vertical curing oven lifting drive structure includes a frame, a servo motor, a linkage reduction mechanism, a lifting chain assembly, a lower tension sprocket assembly, a guide shaft assembly, and a material frame. The servo motor is located at the input end of the linkage reduction mechanism. One end of the lifting chain assembly is connected to the linkage reduction mechanism, and the other end is connected to the lower tension sprocket assembly. The guide shaft assembly is vertically installed in the middle of the frame, with one end fixed to the top of the frame and the other end fixed to the bottom of the frame. The material frame is slidably disposed below the lifting chain assembly and connected to the lifting chain assembly. The front and rear middle parts of the material frame are slidably connected to the guide shaft assembly.
[0008] As an improvement to the above technical solution, the linkage deceleration mechanism includes a first deceleration component, a second deceleration component, and a connecting rod assembly. The first deceleration component and the second deceleration component are installed side by side on the top of the frame, and the first deceleration component and the second deceleration component are connected by the connecting rod assembly.
[0009] As a further improvement to the above technical solution, the lifting chain assembly is provided with four sets. The lifting chain assembly includes a chain, an adjusting screw, a material frame fixing seat, and a nut. The chain is connected to both ends of the adjusting screw, and the adjusting screw is fixed to the material frame fixing seat by the nut.
[0010] As a further improvement to the above technical solution, the lower tensioning sprocket assembly is provided with four sets. The lower tensioning sprocket assembly includes a lower driven sprocket, a high-temperature bearing, a sprocket shaft, two sprocket shaft sleeves, two tensioning guide rods, two high-temperature springs, a tensioning guide rod connecting plate, a tensioning guide rod base plate, and a tensioning sprocket assembly mounting plate. The lower driven sprocket is mounted on the sprocket shaft in cooperation with the bearing. The sprocket shaft sleeves are located at both ends of the sprocket shaft and pass through the sprocket shaft. The tensioning guide rod passes through the sprocket shaft sleeves, with one end fixed to the tensioning guide rod base plate. The high-temperature spring passes through the tensioning guide rod and is placed between the tensioning guide rod base plate and the sprocket shaft sleeve. The other end of the tensioning guide rod is fixed to the tensioning guide rod connecting plate. The tensioning guide rod base plate is fixed to the tensioning sprocket assembly mounting plate.
[0011] As a further improvement to the above technical solution, the guide shaft assembly is provided in two sets. The guide shaft assembly includes a lifting guide rod, a lower lifting guide rod seat, an upper lifting guide rod seat, a high-temperature linear bearing, and a high-temperature linear bearing seat. One end of the lifting guide rod is connected to the lower lifting guide rod seat, and the other end of the lifting guide rod is fitted with the upper lifting guide rod seat. The high-temperature linear bearing cooperates with the lifting guide rod and can slide vertically. The high-temperature linear bearing seat is fixed to the high-temperature linear bearing.
[0012] As a further improvement to the above technical solution, the first deceleration assembly includes a first mounting base, a first reducer, a first reducer mounting seat, a first output shaft, two first seated bearings, four first seated bearing support columns, and two first lifting drive sprockets. The first mounting base is mounted on the top left side of the frame and maintains a certain distance from the frame. The first reducer mounting seat is fixed on the first mounting base, and the first reducer is fixed on the first reducer mounting seat. The first output shaft passes through the first reducer and is connected to the first reducer by a key. The first seated bearings cooperate with both ends of the first output shaft and are fixed to the first mounting base by the first seated bearing support columns. The first lifting drive sprockets are mounted on both ends of the first output shaft, and are connected to the first output shaft by a key on the outer side of the first seated bearings.
[0013] As a further improvement to the above technical solution, the second reduction assembly includes a second mounting base, a second reducer, a second reducer mounting seat, a second output shaft, two second seated bearings, four second seated bearing support columns, and two second lifting drive sprockets. The second mounting base is mounted on the top right side of the frame and maintains a certain distance from the frame. The second reducer mounting seat is fixed on the second mounting base, and the second reducer is fixed on the second reducer mounting seat. The second output shaft passes through the second reducer and is connected to the second reducer by a key. The second seated bearings cooperate with both ends of the second output shaft and are fixed to the second mounting base by the second seated bearing support columns. The second lifting drive sprockets are mounted on both ends of the second output shaft, and are connected to the second output shaft by a key on the outer side of the second seated bearings.
[0014] As a further improvement to the above technical solution, the first output shaft of the first deceleration component and the second output shaft of the second deceleration component rotate in opposite directions, while the power input shafts of the first deceleration component and the second deceleration component rotate in the same direction.
[0015] As a further improvement to the above technical solution, the connecting rod assembly includes a linkage shaft, two couplings, two bearings, two bearing seats, and two bearing seat mounting plates. The two bearings are respectively fixed to the bearing seats on the bearing seat mounting plates and cooperate with the linkage shaft, and are placed at both ends of the linkage shaft. The linkage shaft is connected to the input shaft end of the first reducer and the input shaft end of the second reducer through the couplings. One end of the bearing seat mounting plate is fixed to the first reducer and the other end is fixed to the second reducer. The connecting rod assembly connects the input ends of the first reducer assembly and the input ends of the second reducer assembly together.
[0016] Based on the above-mentioned vertical curing oven lifting drive structure, the present invention also provides a curing oven, including a curing oven body, the curing oven body including a frame, a display, a sliding door, and a heating zone, the sliding door being installed outside the frame, the display being installed on the side of the sliding door, the frame enclosing the heating zone, and the heating zone being connected to the display.
[0017] The beneficial effects of this utility model are: This utility model provides a vertical curing oven lifting drive structure and a curing oven. The lifting drive structure mainly uses chain transmission in conjunction with a linkage reduction mechanism to drive the material frame to lift. Chain transmission can withstand high temperatures, has a relatively simple structure, and its installation accuracy and requirements are greatly reduced compared to ball screws, etc. The materials are easier to process and manufacture, which can shorten the installation and debugging cycle, thereby reducing costs and greatly improving production efficiency. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the vertical curing oven of this utility model;
[0021] Figure 3 This is a schematic diagram of the linkage deceleration mechanism of this utility model;
[0022] Figure 4 This is a schematic diagram of the lower tension sprocket assembly of this utility model;
[0023] Figure 5 This is a structural schematic diagram of the lifting chain assembly of this utility model. Detailed Implementation
[0024] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other. (Refer to...) Figures 1 to 5 .
[0025] A vertical curing oven lifting drive structure includes a frame 101, a servo motor 4, a linkage reduction mechanism 5, a lifting chain assembly 6, a lower tension sprocket assembly 7, a guide shaft assembly 8, and a material frame 9. The servo motor 4 is located at the input end of the linkage reduction mechanism 5. One end of the lifting chain assembly 6 is connected to the linkage reduction mechanism 5, and the other end of the lifting chain assembly 6 is connected to the lower tension sprocket assembly 7. The guide shaft assembly 8 is vertically installed in the middle of the frame 101, with one end fixed to the top of the frame 101 and the other end fixed to the bottom of the frame 101. The material frame 9 is slidably disposed below the lifting chain assembly 6 and connected to the lifting chain assembly 6. The front and rear middle parts of the material frame 9 are slidably connected to the guide shaft assembly 8. The material frame 9 is the driven component used to store the products of the vertical curing oven.
[0026] Reference Figure 2 The linkage deceleration mechanism 5 includes a first deceleration component 51, a second deceleration component 52, and a connecting rod assembly 53. The first deceleration component 51 and the second deceleration component 52 are installed parallel to each other on the top of the frame 101, and are connected to each other via the connecting rod assembly 53. The linkage deceleration mechanism 5 mainly provides greater power to the lifting chain assembly 6 and converts single-point power into multi-point power to meet the lifting operation of the material frame 9.
[0027] Preferably, the guide shaft assembly 8 has two sets, respectively located at the front and rear center of the material frame 9. The guide shaft assembly 8 includes a lifting guide rod 81, a lower lifting guide rod seat 82, an upper lifting guide rod seat 83, a high-temperature linear bearing 84, and a high-temperature linear bearing seat 85. One end of the lifting guide rod 81 is fixedly connected to the lower lifting guide rod seat 82 by screws, and the other end of the lifting guide rod 81 is fitted with the upper lifting guide rod seat 83. Therefore, the lifting guide rod 81 can extend upwards after being heated without bending or deforming. The high-temperature linear bearing 84 cooperates with the lifting guide rod 81 and can slide vertically. The high-temperature linear bearing seat 85 is fixed to the high-temperature linear bearing 84. Other manufacturers generally use four sets of guide shaft assemblies 8. The two sets of guide shaft assemblies 8 used in this utility model not only meet the function of positioning and guiding the material frame 9, but also reduce assembly requirements.
[0028] Reference Figure 3Preferably, the first reduction assembly 51 includes a first mounting base 511, a first reducer 512, a first reducer mounting seat 513, a first output shaft 514, two first bearings with seats 515, four first bearings with seats 516, and two first lifting drive sprockets 517. The first mounting base 511 is mounted on the top left side of the frame 101 and maintains a certain distance from the frame 101. The first reducer mounting seat 513 is fixed on the first mounting base 511. The first reducer 512 is fixed on the first reducer mounting seat 513. The first output shaft 514 passes through the first reducer 512 and is keyed to the first reducer 512. The first bearings with seats 515 cooperate with both ends of the first output shaft 514 and are fixed to the first mounting base 511 by the first bearings with seats 516. The first lifting drive sprockets 517 are mounted on both ends of the first output shaft 514, and are keyed to the outer side of the first bearings with seats 515. The servo motor 4 is directly connected to one end of the input shaft of the first reduction gear 51.
[0029] Preferably, the second reduction assembly 52 includes a mounting base 521, a second reducer 522, a second reducer mounting seat 523, a second output shaft 524, two second bearings with seats 525, four second bearings with seats 526, and two second lifting drive sprockets 527. The second mounting base 521 is mounted on the top right side of the frame 101 and maintains a certain distance from the frame 101. The second reducer mounting seat 523 is fixed on the second mounting base 521. The second reducer 522 is fixed on the second reducer mounting seat 523. The second output shaft 524 passes through the second reducer 522 and is keyed to the second reducer 522. The second bearings with seats 525 cooperate with both ends of the second output shaft 524 and are fixed to the second mounting base 521 by the second bearings with seats 526. The second lifting drive sprockets 527 are mounted on both ends of the second output shaft 524. The outer side of the second bearings with seats 525 is keyed to the second output shaft 524.
[0030] Preferably, the first output shaft 514 of the first deceleration component 51 and the second output shaft 524 of the second deceleration component 52 rotate in opposite directions, while the power input shafts of the first deceleration component 51 and the second deceleration component 52 rotate in the same direction.
[0031] Preferably, the connecting rod assembly 53 includes a linkage shaft 531, two couplings 532, two bearings 533, two bearing seats 534, and two bearing seat mounting plates 535. The two bearings 533 are respectively fixed to the bearing seats 534 on the bearing seat mounting plates 535 and cooperate with the linkage shaft 531, positioned at both ends of the linkage shaft 531. The linkage shaft 531 is connected to the input shaft end of the first reducer 512 and the input shaft end of the second reducer 522 through the couplings 532. One end of the bearing seat mounting plate 534 is fixed to the first reducer 512, and the other end is fixed to the second reducer 522. The connecting rod assembly 53 is used to connect the input ends of the first reducer assembly 51 and the second reducer assembly 52 together.
[0032] Reference Figure 3 and Figure 5 Preferably, the lifting chain assembly 6 has four sets. The lifting chain assembly 6 includes several standard chain sections 61, adjusting screws 62, a material frame fixing seat 63, and three nuts 64. The several standard chain sections 61 are connected to both ends of the adjusting screws 62. The adjusting screws 62 are fixed to the material frame fixing seat 63 by the nuts 64. There are three nuts 64, one at the top and two at the bottom, to achieve an anti-loosening effect. Additionally, the material frame 9 can be leveled by adjusting the vertical relative position of the four sets of adjusting screws 62 and the material frame fixing seat 63. The chain connects the material frame 9 in the heating zone to the power mechanism at its top. The chain itself has a small cross-sectional area, which effectively reduces the leakage of hot air.
[0033] Reference Figure 4 Preferably, the lower tension sprocket assembly 7 is provided with four sets, and the lower tension sprocket assembly 7 includes a lower driven sprocket 71, a high-temperature bearing 72, a sprocket shaft 73, two sprocket shaft sleeves 74, two tension guide rods 75, two high-temperature springs 76, a tension guide rod connecting plate 77, a tension guide rod base plate 78, and a tension sprocket assembly mounting plate 79. The lower driven sprocket 71 is mounted on the sprocket shaft 73 in conjunction with the bearing 72. The sprocket shaft sleeve 74 is located at both ends of the sprocket shaft 73 and passes through it. The tensioning guide rod 75 passes through the sprocket shaft sleeve 74, with one end fixed to the tensioning guide rod base plate 78. The high-temperature spring 76 passes through the tensioning guide rod 75 and is positioned between the tensioning guide rod base plate 78 and the sprocket shaft sleeve 74. The other end of the tensioning guide rod 75 is fixed to the tensioning guide rod connecting plate 77. The tensioning guide rod base plate 78 is fixed to the tensioning sprocket assembly mounting plate 79. The elastic tensioning function of the high-temperature spring 76 can absorb the elongation of the chain to ensure its stable operation.
[0034] Based on the above-mentioned vertical curing oven lifting drive structure, the present invention also provides a curing oven, including a curing oven body 1. The curing oven body 1 includes a frame 101, a display 102, a sliding door 103 and a heating zone 2. The sliding door 103 is installed outside the frame 101, the display 102 is installed on the side of the sliding door 103, and the frame 101 encloses the heating zone 2.
[0035] Reference Figure 1 Preferably, the heating zone 2 is connected to the display 102, and the display 102 controls the heating zone 2.
[0036] In this embodiment, the vertical curing oven lifting drive structure uses a servo motor 4 as the driving power source. After the servo motor 4 is started, it provides power to drive the lifting chain assembly 6. The servo motor 4 is connected to one end of the linkage reduction mechanism 5 and drives the lifting chain assembly 6 using chain transmission. The first reduction component 51 and the second reduction component 52 in the linkage reduction mechanism 5 adjust the running speed of the chain 61 in the lifting chain assembly 6 as needed. The linkage reduction mechanism 5 mainly provides greater power to the lifting chain assembly 6 and converts single-point power into multi-point power. The guide shaft assembly 8 has a guiding and positioning function, which enables the material frame 9 to perform vertical lifting and reciprocating motion.
[0037] Since the lifting drive structure is installed outside the frame 101, that is, outside the heating zone, it can work reliably in high-temperature environments, effectively reducing the wear rate of chain components caused by high temperatures. Moreover, the structure is simple and reliable, the operation is stable, and the assembly and debugging are quick, which can greatly improve the production efficiency of enterprises.
[0038] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A vertical curing oven lift drive structure, characterized by: The rack (101), servo motor (4), linkage reduction mechanism (5), lifting chain assembly (6), lower tension sprocket assembly (7), guide shaft assembly (8) and material frame (9), the servo motor (4) is arranged in the input end of the linkage reduction mechanism (5), one end of the lifting chain assembly (6) is connected with the linkage reduction mechanism (5), the other end of the lifting chain assembly (6) is connected with the lower tension sprocket assembly (7), the guide shaft assembly (8) is vertically installed in the middle of the rack (101), one end of the guide shaft assembly (8) is fixed on the top of the rack (101), the other end of the guide shaft assembly (8) is fixed on the bottom of the rack (101), the material frame (9) is slidably arranged on the lower part of the lifting chain assembly (6), the material frame (9) is connected with the lifting chain assembly (6), the front side and the rear side of the material frame (9) are slidably connected with the guide shaft assembly (8).
2. The vertical curing oven lifting drive structure according to claim 1, wherein: The linkage reduction mechanism (5) includes a first reduction assembly (51), a second reduction assembly (52) and a connecting rod assembly (53), the first reduction assembly (51) and the second reduction assembly (52) are installed in parallel on the top of the rack (101), and the first reduction assembly (51) and the second reduction assembly (52) are connected through the connecting rod assembly (53).
3. The vertical curing oven lifting drive structure of claim 1, wherein: The lifting chain assembly (6) is provided with four groups, and the lifting chain assembly (6) includes a chain (61), an adjusting screw (62), a material frame fixing seat (63) and a nut (64), the chain (61) is connected to both ends of the adjusting screw (62), and the adjusting screw (62) is fixed on the material frame fixing seat (63) by the nut (64).
4. The vertical curing oven lift drive structure of claim 1, wherein: The lower tension sprocket assembly (7) is provided with four groups, and the lower tension sprocket assembly (7) includes a lower driven sprocket (71), a high-temperature bearing (72), a sprocket shaft (73), two sprocket shaft sliding sleeves (74), two tension guide rods (75), two high-temperature springs (76), a tension guide rod connecting plate (77), a tension guide rod bottom plate (78) and a tension sprocket assembly mounting plate (79), the lower driven sprocket (71) is installed on the sprocket shaft (73) in cooperation with the bearing (72), the sprocket shaft sliding sleeves (74) are arranged at both ends of the sprocket shaft (73) and pass through the sprocket shaft (73), the tension guide rods (75) pass through the sprocket shaft sliding sleeves (74), one end of the tension guide rods (75) is fixed on the tension guide rod bottom plate (78), the high-temperature springs (76) pass through the tension guide rods (75) and are arranged between the tension guide rod bottom plate (78) and the sprocket shaft sliding sleeves (74), the other end of the tension guide rods (75) is fixed on the tension guide rod connecting plate (77), and the tension guide rod bottom plate (78) is fixed on the tension sprocket assembly mounting plate (79).
5. The vertical curing oven lift drive structure of claim 1, wherein: The guide shaft assembly (8) is provided with two groups, the guide shaft assembly (8) includes lifting guide rod (81), lifting guide rod lower seat (82), lifting guide rod upper seat (83), high temperature linear bearing (84), and high temperature linear bearing seat (85), one end of the lifting guide rod (81) is connected with the lifting guide rod lower seat (82), the other end of the lifting guide rod (81) is sleeved with the lifting guide rod upper seat (83), the high temperature linear bearing (84) is matched with the lifting guide rod (81) and can be vertically slid, the high temperature linear bearing seat (85) is fixed with the high temperature linear bearing (84).
6. The vertical curing oven lift drive structure of claim 2, wherein: The first speed reduction assembly (51) includes a first mounting base plate (511), a first speed reducer (512), a first speed reducer mounting seat (513), a first output shaft (514), two first bearing seat bearings (515), four first bearing seat heightening columns (516), and two first lifting driving sprockets (517). The first mounting base plate (511) is mounted on the top left side of the rack (101) and maintains a certain distance from the rack (101). The first speed reducer mounting seat (513) is fixed on the first mounting base plate (511). The first speed reducer (512) is fixed on the first speed reducer mounting seat (513). The first output shaft (514) passes through the first speed reducer (512) and is connected with the first speed reducer (512) by a key. The first bearing seat bearing (515) is matched with both ends of the first output shaft (514) and is fixed on the first mounting base plate (511) by the first bearing seat heightening column (516). The first lifting driving sprocket (517) is installed on both ends of the first output shaft (514). The outer side of the first bearing seat bearing (515) is connected with the first output shaft (514) by a key.
7. The vertical curing oven lift drive structure of claim 6, wherein: The second speed reduction assembly (52) comprises a second mounting base plate (521), a second speed reducer (522), a second speed reducer mounting seat (523), a second output shaft (524), two second belt seat bearings (525), four second belt seat bearing heightening columns (526), and two second lifting driving sprockets (527). The second mounting base plate (521) is mounted on the top right side of the rack (101) and is kept at a distance from the rack (101). The second speed reducer mounting seat (523) is fixed on the second mounting base plate (521). The second speed reducer (522) is fixed on the second speed reducer mounting seat (523). The second output shaft (524) penetrates the second speed reducer (522) and is connected with the second speed reducer (522) by a key. The second belt seat bearings (525) are matched with the two ends of the second output shaft (524) and are fixed on the second mounting base plate (521) through the second belt seat bearing heightening columns (526). The second lifting driving sprockets (527) are installed on the two end portions of the second output shaft (524). The outer side of the second belt seat bearings (525) is connected with the second output shaft (524) by a key.
8. The vertical curing oven lift drive structure of claim 7, wherein: The first output shaft (514) of the first speed reduction assembly (51) is opposite in direction to the second output shaft (524) of the second speed reduction assembly (52). The power input shafts of the first speed reduction assembly (51) and the second speed reduction assembly (52) are consistent in direction.
9. The vertical curing oven lift drive structure of claim 7, wherein: The connecting rod assembly (53) comprises a linkage shaft (531), two shaft couplings (532), two bearings (533), two bearing seats (534), and two bearing seat mounting plates (535). The two bearings (533) are respectively fixed on the bearing seat mounting plates (535) in cooperation with the bearing seats (534) and are matched with the linkage shaft (531) and placed on the two ends of the linkage shaft (531). The linkage shaft (531) is connected with the input shaft end of the first speed reducer (512) and the input shaft end of the second speed reducer (522) through the shaft couplings (532). One end of the bearing seat mounting plate is fixed on the first speed reducer (512) and the other end is fixed on the second speed reducer (522). The connecting rod assembly (53) connects the input end of the first speed reduction assembly (51) and the input end of the second speed reduction assembly (52) together.
10. A curing oven characterized by: The curing oven comprises a curing oven body (1), which comprises a rack (101), a display (102), a sliding door (103), and a heating area (2). The sliding door (103) is installed outside the rack (101), and the display (102) is installed on the side of the sliding door (103). The rack (101) wraps the heating area (2), and the heating area (2) is connected with the display (102). The curing oven body comprises the vertical curing oven lifting drive structure according to any one of claims 1-9.