CN220534892U

CN220534892U - Vertical open-close type baking oven

Info

Publication number: CN220534892U
Application number: CN202321963470.9U
Authority: CN
Inventors: 蒯一希; 廖凯
Original assignee: Sichuan Jinshi Oriental New Material Technology Co ltd
Current assignee: Sichuan Jinshi Oriental New Material Technology Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2024-02-27
Anticipated expiration: 2033-07-25

Abstract

The application belongs to the technical field of reinforced composite plastic pipe manufacturing, and in particular relates to a vertical open-close type baking oven for heating in the production process of reinforced composite plastic pipes, which comprises a frame, an upper baking oven assembly and a lower baking oven assembly which are distributed up and down are arranged on the frame, heating parts are arranged in the upper baking oven assembly and the lower baking oven assembly, the upper baking oven assembly comprises an upper baking oven body, the lower baking oven assembly comprises a lower baking oven body, a guide pillar is arranged on the frame, and an upper frame and a lower frame are sleeved on the guide pillar and can slide up and down along the guide pillar. The oven of this application can be for upper and lower open-close type structure, and the mode of opening and shutting from top to bottom can practice thrift the occupation of land space of equipment, and tubular product passes conveniently, and tubular product can take out fast, when needs take out the coffin, can take out from horizontal operation face fast after can cutting off tubular product, and operational safety and convenient degree are improved greatly.

Description

Vertical open-close type baking oven

Technical Field

The application belongs to the technical field of manufacturing of reinforced composite plastic pipes, and particularly relates to a vertical open-close type baking oven for heating in the production process of the reinforced composite plastic pipes.

Background

In the production process of reinforced composite plastic pipes, the surface of the pipe or the reinforcing material needs to be heated, and most of the heating effects are realized through ovens in the prior art. By heating the oven, all layers of materials are mutually welded into a whole in the production process that the pipe passes through the center of the oven.

Existing oven structures are typically monolithic or side-to-side. The defects are as follows:

(1) Integral type: when the machine is stopped, the pipe is inconvenient to pass through. In an emergency, the machine is stopped, the pipe in the heating area is not easy to be taken out quickly, and the heating is slowly lowered, so that safety accidents are easy to occur.

(2) Left and right opening and closing type: the pipe needs to be lifted out from the upper part after the pipe is opened and closed left and right by occupying a wider field, and the operation is inconvenient.

Disclosure of Invention

In order to solve the above problems in the prior art, a vertical open-close type oven for realizing the up-and-down opening and closing of the oven is particularly proposed.

In order to achieve the technical effects, the technical scheme of the application is as follows:

the utility model provides a vertical open-close type oven, includes the frame, install upper and lower oven subassembly that distributes from top to bottom in the frame, be provided with the heating element in upper oven subassembly and the lower oven subassembly, upper oven subassembly includes the upper oven body, upper oven body left and right sides face is connected with the installation arm, and two upper installation arms link to each other with last frame, lower oven subassembly includes the lower oven body, lower oven body left and right sides face is connected with the installation arm down, and two lower installation arms link to each other with lower frame, be provided with the guide pillar in the frame, upper frame and lower frame cup joint on the guide pillar and can follow the guide pillar and slide from top to bottom.

Further, two upper mounting arms are connected with the upper frame through an upper mounting beam, and two lower mounting arms are connected with the lower frame through a lower mounting beam.

Further, the upper oven body is hung on the upper mounting arm through a hanging plate, and a sliding rail capable of extracting the oven is arranged between the hanging plate and the upper mounting arm; the lower oven body is hung on the lower mounting arm through a hanging plate, and a sliding rail capable of extracting the oven is arranged between the hanging plate and the lower mounting arm.

Still further, go up the installation arm and be provided with the adjustment hand in the installation arm front end down, the adjustment hand links to each other with adjusting screw, and adjusting screw passes through adjusting nut and L shape connecting piece and links to each other with the slide rail.

Further, the sliding rail is a T-shaped sliding rail.

Still further, an upper oven assembly comprises two upper mounting arms, two hanging plates and two upper mounting cross beams, the upper oven body is hung between the two upper mounting arms through the hanging plates, the two upper mounting arms are fixedly connected to the upper mounting cross beams, and the upper mounting cross beams are fixedly connected to the upper frame;

the lower oven assembly comprises two lower mounting arms, two hanging plates and two lower mounting cross beams, the lower oven body is hung between the two lower mounting arms through the hanging plates, the two lower mounting arms are fixedly connected onto the lower mounting cross beams, and the lower mounting cross beams are fixedly connected onto the lower frame.

Further, an upper oven assembly and a lower oven assembly which are correspondingly arranged form a group of oven bodies, and more than two groups of oven bodies are arranged in the horizontal direction.

Further, an opening and closing mechanism for driving the upper oven assembly and the lower oven assembly to open and close is arranged on the rack, the opening and closing mechanism comprises an opening and closing screw rod, the opening and closing screw rod comprises an upper section of screw thread and a lower section of screw thread, the screw threads at the upper end and the lower end are positive and negative, each section of screw thread is matched with a nut, each nut is fixedly connected to the upper frame and the lower frame respectively, and the lower part of the opening and closing screw rod is connected with an opening and closing driving motor.

Further, an integral lifting mechanism is arranged on the frame and drives the upper oven assembly and the lower oven assembly to integrally ascend or descend along the guide post.

Still further, whole elevating system is three connecting rod structures, three connecting rod structures's top is connected with the elevating platform, and elevating platform fixed mounting has open and shut lead screw and opens and shuts driving motor, the elevating platform cup joints on the guide pillar.

Still further, three connecting rod structures include the lift lead screw that is located the bottom, with lift lead screw connection and articulated long board and the short board each other, long board top fixedly connected with elevating platform, short board bottom is articulated with the frame, lift lead screw one end is provided with the lifting hand wheel.

Further, the upper oven assembly and the lower oven assembly comprise an oven shell and infrared heating lamp tubes which are uniformly distributed in the oven shell.

The application has the advantages that:

1. the oven of this application can be for upper and lower open-close type structure, and the mode of opening and shutting from top to bottom can practice thrift the occupation of land space of equipment, and tubular product passes conveniently, and tubular product can take out fast, when needs take out the coffin, can take out from horizontal operation face fast after can cutting off tubular product, and operational safety and convenient degree are improved greatly.

2. When the oven body of the application is opened in an up-down opening-closing mode, the infrared lamp tube inside the oven body can be conveniently installed and replaced.

3. The oven of this application possesses whole fine setting function about (the adjustment center is high), and rotatory lifting hand wheel, elevating system action makes the upper and lower frame and the oven on the lead screw of opening and shutting, elevator motor and the lead screw of installing on the elevating platform reciprocate along controlling the guide pillar. The oven is opened and closed by driving a lifting screw rod to rotate by a driving motor on a lifting platform, and the upper frame and the lower frame are respectively opened and closed along the left guide pillar and the right guide pillar under the driving of positive and negative threads. So the guide post bears two functions of integral lifting and opening and closing of the upper and lower oven assemblies.

4. The utility model provides an upward oven subassembly and lower oven subassembly adopt slide rail hanging installation, conveniently take off respectively last oven subassembly and lower oven subassembly, realize the purpose of quick replacement specification piece.

5. The quick opening and closing of the upper oven assembly and the lower oven assembly is realized through the opening and closing screw rod, the overall up-and-down movement of the upper oven assembly and the lower oven assembly is realized through the integral lifting mechanism, and the integral structure is simple and easy to realize.

Drawings

Fig. 1 is a front view of the overall structure of the present application.

Fig. 2 is a right side view of the overall structure of the present application.

Fig. 3 is a front view of the upper oven assembly.

Fig. 4 is a side view of the upper oven assembly.

Fig. 5 is a schematic structural view of the frame, the integral lifting mechanism and the opening and closing mechanism.

Fig. 6 is a schematic view of the structure of the whole lifting mechanism.

Fig. 7 is a schematic diagram of the working principle of the three-link structure.

Fig. 8 is a schematic view of the interior of the oven.

In the accompanying drawings:

the device comprises a 1-frame, a 2-upper oven assembly, a 3-lower oven assembly, a 201-upper oven body, a 202-upper mounting arm, a 203-upper frame, a 204-upper mounting beam, a 301-lower oven body, a 302-lower mounting arm, a 303-lower frame, a 304-lower mounting beam, a 4-guide pillar, a 5-hanging plate, a 6-sliding rail, a 7-adjusting hand wheel, an 8-adjusting screw rod, a 9-adjusting nut, a 10-L-shaped connecting piece, an 11-sliding seat, a 12-opening and closing screw rod, a 13-opening and closing driving motor, a 14-integral lifting mechanism, a 141-lifting table, a 142-lifting screw rod, a 143-long plate, a 144-short plate, a 145-external lifting hand wheel, a 15-oven shell and a 16-infrared heating lamp tube.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, the terms "upper", "vertical", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or an azimuth or a positional relationship conventionally put in use of the product of the application, or an azimuth or a positional relationship conventionally understood by one skilled in the art, are merely for convenience of description of the present application and for simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Example 1

As shown in fig. 1 and 2, the vertical open-close type oven comprises a frame 1, an upper oven assembly 2 and a lower oven assembly 3 which are distributed up and down are installed on the frame 1, heating elements are arranged in the upper oven assembly 2 and the lower oven assembly 3, the upper oven assembly 2 comprises an upper oven body 201, left and right sides of the upper oven body 201 are connected with upper mounting arms 202, two upper mounting arms 202 are connected with an upper frame 203, the lower oven assembly 3 comprises a lower oven body 301, left and right sides of the lower oven body 301 are connected with lower mounting arms 302, two lower mounting arms 302 are connected with a lower frame 303, a guide pillar 4 is arranged on the frame 1, and the upper frame 203 and the lower frame 303 are sleeved on the guide pillar 4 and can slide up and down along the guide pillar 4. The upper and lower frames 203 and 303 are moved up and down to open and close the upper and lower oven assemblies 2 and 3. The movement of the upper and lower frames 203, 303 on the guide posts 4 can be directly pulled by a person or can be controlled by an existing electric mechanism.

The oven of this application can be for upper and lower open-close type structure, and the mode of opening and shutting from top to bottom can practice thrift the occupation of land space of equipment, and tubular product passes conveniently, and tubular product can take out fast, when needs take out the coffin, can take out from horizontal operation face fast after can cutting off tubular product, and operational safety and convenient degree are improved greatly. When the oven body of the application is opened in an up-down opening-closing mode, the infrared lamp tube inside the oven body can be conveniently installed and replaced.

Example 2

As shown in fig. 1 and 2, the vertical open-close type oven comprises a frame 1, an upper oven assembly 2 and a lower oven assembly 3 which are distributed up and down are installed on the frame 1, heating elements are arranged in the upper oven assembly 2 and the lower oven assembly 3, the upper oven assembly 2 comprises an upper oven body 201, left and right sides of the upper oven body 201 are connected with upper mounting arms 202, two upper mounting arms 202 are connected with an upper frame 203, the lower oven assembly 3 comprises a lower oven body 301, left and right sides of the lower oven body 301 are connected with lower mounting arms 302, two lower mounting arms 302 are connected with a lower frame 303, a guide pillar 4 is arranged on the frame 1, and the upper frame 203 and the lower frame 303 are sleeved on the guide pillar 4 and can slide up and down along the guide pillar 4.

Two upper mounting arms 202 are connected to the upper frame 203 by upper mounting beams 204 and two lower mounting arms 302 are connected to the lower frame 303 by lower mounting beams 304.

As shown in fig. 3 and 4, an upper oven body 201 is hung on an upper mounting arm 202 through a hanging plate 5, and a sliding rail 6 capable of extracting an oven is arranged between the hanging plate 5 and the upper mounting arm 202; the lower oven body 301 is hung on the lower mounting arm 302 through the hanging plate 5, and a sliding rail 6 which can draw the oven is arranged between the hanging plate 5 and the lower mounting arm 302. The front ends of the upper mounting arm 202 and the lower mounting arm 302 are provided with an adjusting hand wheel 7, the adjusting hand is connected with an adjusting screw rod 8, and the adjusting screw rod 8 is connected with the sliding rail 6 through an adjusting nut 9 and an L-shaped connecting piece 10. The sliding head wheel drives the sliding rail 6 to move back and forth, the front and back positions of the upper oven assembly 2 or the lower oven assembly 3 are adjusted, and the front and back positions of the ovens are adjusted and locked. The slide rail 6 is a T-shaped slide rail 6.

As shown in fig. 5, an upper oven assembly 2 includes two upper mounting arms 202, two hanging plates 5 and two upper mounting beams 204, an upper oven body 201 is hung between the two upper mounting arms 202 through the hanging plates 5, the two upper mounting arms 202 are fixedly connected to the upper mounting beams 204, and the upper mounting beams 204 are fixedly connected to an upper frame 203;

the lower oven assembly 3 comprises two lower mounting arms 302, two hanging plates 5 and two lower mounting beams 304, the lower oven body 301 is hung between the two lower mounting arms 302 through the hanging plates 5, the two lower mounting arms 302 are fixedly connected to the lower mounting beams 304, and the lower mounting beams 304 are fixedly connected to the lower frame 303.

An upper oven assembly 2 and a lower oven assembly 3 which are correspondingly arranged form a group of oven bodies, and more than two groups of oven bodies are arranged in the horizontal direction. The simultaneous hanging mode of the oven bodies can realize the simultaneous practical ovens with different powers, different wavelengths and different heating degrees, and greatly increases the process adaptability and the flexibility, namely, one set of mechanism can realize the combination of different heating modes.

The purpose of the upper mounting beam 204 and the lower mounting beam 304 is to allow for axial mounting of multiple groups of oven bodies and to allow for easy axial adjustment of spacing. The upper mounting beam 204 and the lower mounting beam 304 may be aluminum profiles, but in actual use, the upper oven assembly 2 and the lower oven assembly 3 may be directly mounted on the upper frame 203 without mounting beams.

Example 3

The machine frame 1 is provided with an opening and closing mechanism for driving the upper oven assembly 2 and the lower oven assembly 3 to open and close, the opening and closing mechanism comprises an opening and closing screw rod 12, the opening and closing screw rod 12 comprises an upper section of thread and a lower section of thread, the upper end thread and the lower end thread are positive and negative, each section of thread is matched with a nut, each nut is respectively and fixedly connected to the upper frame 203 and the lower frame 303, and the lower part of the opening and closing screw rod 12 is connected with an opening and closing driving motor 13.

The opening and closing actions of the upper oven assembly 2 and the lower oven assembly 3 are as follows: under the action of the opening and closing driving motor 13, the opening and closing screw rod 12 rotates, and the upper and lower frames 303 are driven to move in a back-to-back or close mode through nuts matched with the positive and negative threads, so that the upper oven assembly 2 and the lower oven assembly 3 are opened and closed.

The frame 1 is provided with an integral lifting mechanism 14, and the integral lifting mechanism 14 drives the upper oven assembly 2 and the lower oven assembly 3 to integrally lift or descend along the guide post 4. In the prior art, a lifting structure capable of driving the upper oven assembly 2 and the lower oven assembly 3 to integrally lift or descend along the guide post 4 can be used herein.

As shown in fig. 6 and 7, the integral lifting mechanism 14 is of a three-link structure, the top end of the three-link structure is connected with a lifting table 141, the lifting table 141 is fixedly provided with an opening and closing screw rod 12 and an opening and closing driving motor 13, and the lifting table 141 is sleeved on the guide post 4. The three-bar linkage referred to herein is a three-bar linkage common in the mechanical arts. The lower part of the opening and closing screw rod 12 is fixedly connected to the lifting table 141, the upper part of the opening and closing screw rod 12 is sleeved on the top beam of the frame 1, movable connection with the top beam of the frame 1 is realized, and if the lifting height is high enough, the opening and closing screw rod 12 can penetrate through the top beam of the frame 1, so that the lifting table 141+the opening and closing screw rod 12+the upper frame 203+the lower frame can slide up and down relative to the guide post 4. However, for reasons of height design, the open-close screw rod 12 shown in the drawings does not penetrate out of the top beam of the frame 1.

The three-link structure comprises a lifting screw rod 142 positioned at the bottom, a long plate 143 and a short plate 144, wherein the long plate 143 and the short plate 144 are connected with the lifting screw rod 142 and are mutually hinged, the lifting table 141 is fixedly connected to the top end of the long plate 143, the bottom end of the short plate 144 is hinged to the frame 1, and one end of the lifting screw rod 142 is provided with a lifting hand wheel 145. The lifting hand wheel 145 is rotated, the bottom end of the whole long plate 143 is driven to move forwards through the screw rod, the long plate 143 is hinged with the end plate, the bottom of the end plate is hinged with the bottom of the frame 1, so that the top end position of the long plate 143 is lifted, the lifting table 141 connected with the long plate 143 is driven to move upwards, the whole position of the oven is lifted, and the whole position of the oven can be lifted in the same way.

As shown in fig. 8, the upper and lower oven assemblies 2 and 3 include an oven housing 15 and infrared heating lamps 16 uniformly distributed inside the oven housing 15. The heating element may be an infrared heating tube 16 or other heating structure known to those skilled in the art.

The oven of this application can be for upper and lower open-close type structure, and the mode of opening and shutting from top to bottom can practice thrift the occupation of land space of equipment, and tubular product passes conveniently, and tubular product can take out fast, when needs take out the coffin, can take out from horizontal operation face fast after can cutting off tubular product, and operational safety and convenient degree are improved greatly. When the oven body is opened in an up-and-down opening and closing mode, the infrared lamp tube inside the oven body can be conveniently installed and replaced.

The oven of the present application has a fine tuning function (height of the adjustment center) up and down as a whole, and the lifting hand wheel 145 is rotated to move the lifting mechanism, so that the opening and closing screw rod 12 mounted on the lifting table 141, the lifting motor, the upper and lower frames 303 on the screw rod, and the oven move up and down along the left and right guide posts 4. The oven is opened and closed by driving a lifting screw rod 142 to rotate by a driving motor on the lifting platform, and the upper frame and the lower frame are respectively opened and closed along the left guide post 4 and the right guide post 4 under the driving of positive and negative threads. So the guide post 4 has two functions of integrally lifting and opening and closing the upper and lower oven assemblies 3.

The utility model provides an go up oven subassembly 2 and lower oven subassembly 3 adopts slide rail 6 hanging installation, conveniently takes off respectively to last oven subassembly 2 and lower oven subassembly 3, realizes the purpose of quick replacement specification piece.

The quick opening and closing of the upper oven assembly 2 and the lower oven assembly 3 are realized through the opening and closing screw rod 12, the overall up-and-down movement of the upper oven assembly 2 and the lower oven assembly 3 is realized through the integral lifting mechanism 14, and the integral structure is simple and easy to realize.

Claims

1. Vertical open-close type oven, including frame (1), its characterized in that: the upper drying oven comprises a frame (1), an upper drying oven component (2) and a lower drying oven component (3) which are distributed up and down are arranged on the frame (1), heating parts are arranged in the upper drying oven component (2) and the lower drying oven component (3), the upper drying oven component (2) comprises an upper drying oven body (201), left and right sides of the upper drying oven body (201) are connected with an upper mounting arm (202), two upper mounting arms (202) are connected with an upper frame (203), the lower drying oven component (3) comprises a lower drying oven body (301), left and right sides of the lower drying oven body (301) are connected with a lower mounting arm (302), two lower mounting arms (302) are connected with a lower frame (303), a guide pillar (4) is arranged on the frame (1), and the upper frame (203) and the lower frame (303) are sleeved on the guide pillar (4) and can slide up and down along the guide pillar (4).

2. A vertical open-close oven according to claim 1, characterized in that: two upper mounting arms (202) are connected with the upper frame (203) through an upper mounting beam (204), and two lower mounting arms (302) are connected with the lower frame (303) through a lower mounting beam (304).

3. A vertical open-close oven according to claim 1, characterized in that: the upper oven body (201) is hung on the upper mounting arm (202) through a hanging plate (5), and a sliding rail (6) capable of extracting the oven is arranged between the hanging plate (5) and the upper mounting arm (202); the lower oven body (301) is hung on the lower mounting arm (302) through the hanging plate (5), and a sliding rail (6) capable of extracting the oven is arranged between the hanging plate (5) and the lower mounting arm (302).

4. A vertical open-close oven according to claim 3, characterized in that: the front ends of the upper mounting arm (202) and the lower mounting arm (302) are provided with adjusting handwheels (7), the adjusting handwheels are connected with adjusting screw rods (8), and the adjusting screw rods (8) are connected with the L-shaped connecting pieces (10) and the sliding rails (6) through adjusting nuts (9).

5. The open-close oven according to claim 4, wherein: the sliding rail (6) is a T-shaped sliding rail (6).

6. A vertical open-close oven according to claim 3, characterized in that: an upper oven assembly (2) comprises two upper mounting arms (202), two hanging plates (5) and two upper mounting cross beams (204), wherein the upper oven body (201) is hung between the two upper mounting arms (202) through the hanging plates (5), the two upper mounting arms (202) are fixedly connected to the upper mounting cross beams (204), and the upper mounting cross beams (204) are fixedly connected to the upper frame (203);

a lower oven assembly (3) comprises two lower mounting arms (302), two hanging plates (5) and two lower mounting cross beams (304), wherein a lower oven body (301) is hung between the two lower mounting arms (302) through the hanging plates (5), the two lower mounting arms (302) are fixedly connected onto the lower mounting cross beams (304), and the lower mounting cross beams (304) are fixedly connected onto a lower frame (303).

7. A vertical open-close oven according to claim 1, characterized in that: an upper oven assembly (2) and a lower oven assembly (3) which are correspondingly arranged form a group of oven bodies, and more than two groups of oven bodies are arranged in the horizontal direction.

8. A vertical open-close oven according to claim 1, characterized in that: the frame (1) is provided with an opening and closing mechanism for driving the upper oven assembly (2) and the lower oven assembly (3) to open and close, the opening and closing mechanism comprises an opening and closing screw rod (12), the opening and closing screw rod (12) comprises an upper section of screw thread and a lower section of screw thread, the upper end screw thread and the lower end screw thread are positive and negative, each section of screw thread is matched with a nut, each nut is respectively fixedly connected to an upper frame (203) and a lower frame (303), and the lower part of the opening and closing screw rod (12) is connected with an opening and closing driving motor (13).

9. A vertical open-close oven according to claim 1, characterized in that: an integral lifting mechanism (14) is arranged on the frame (1), and the integral lifting mechanism (14) drives the upper oven assembly (2) and the lower oven assembly (3) to integrally ascend or descend along the guide post (4).

10. A vertical open-close oven according to claim 9, characterized in that: the integral lifting mechanism (14) is of a three-link structure, the top end of the three-link structure is connected with a lifting table (141), the lifting table (141) is fixedly provided with an opening and closing screw rod (12) and an opening and closing driving motor (13), and the lifting table (141) is sleeved on the guide post (4).

11. A vertical open-close oven according to claim 10, characterized in that: the three-connecting-rod structure comprises a lifting screw rod (142) positioned at the bottom, a long plate (143) and a short plate (144), wherein the long plate (143) and the short plate (144) are connected with the lifting screw rod (142) and are mutually hinged, the lifting table (141) is fixedly connected to the top end of the long plate (143), the bottom end of the short plate (144) is hinged to the frame (1), and a lifting hand wheel (145) is arranged at one end of the lifting screw rod (142).

12. A vertical open-close oven according to claim 1, characterized in that: the upper oven assembly (2) and the lower oven assembly (3) comprise an oven shell (15) and infrared heating lamp tubes (16) which are uniformly distributed in the oven shell (15).