阅读说明：本技术 一种用于烘干绝缘板的系统 (System for drying insulating plate ) 是由 于学明 倪少波 于 2021-06-28 设计创作，主要内容包括：一种用于烘干绝缘板的系统,涉及绝缘板加工技术领域,用于提高对绝缘板烘干工作的效率。一种用于烘干绝缘板的系统,其特征是,包括烘箱和设于烘箱中的货架,所述烘箱的左右两侧各设有导流罩,各所述导流罩呈外端大内端小的形状,所述导流罩用于引入热风,所述烘箱的顶部设有排气口,排气口用于引出废气；所述货架包括底座和驱动机构,所述底座上设有导向架,所述导向架上滑动连接有第一滑动架和第二滑动架,所述第一滑动架和所述第二滑动架能分别在所述导向架上沿上下方向滑动,所述第一滑动架和所述第二滑动架按照前后方向分布。有益效果是,利于大幅度提升对绝缘板的烘干的效率。(The utility model provides a system for be used for drying insulation board, relates to insulation board processing technology field for improve the efficiency to insulation board stoving work. A system for drying an insulating plate is characterized by comprising an oven and a shelf arranged in the oven, wherein air guide hoods are respectively arranged on the left side and the right side of the oven, each air guide hood is in a shape with a large outer end and a small inner end, the air guide hoods are used for introducing hot air, an exhaust port is arranged at the top of the oven, and the exhaust port is used for leading out waste gas; goods shelves include base and actuating mechanism, be equipped with the leading truck on the base, sliding connection has first carriage and second carriage on the leading truck, first carriage with the second carriage can be respectively slide along upper and lower direction on the leading truck, first carriage with the second carriage distributes according to the fore-and-aft direction. The beneficial effects are that, do benefit to the efficiency that promotes the stoving to the insulation board by a wide margin.)

1. A system for drying an insulating plate is characterized by comprising an oven and a shelf arranged in the oven, wherein air guide hoods are respectively arranged on the left side and the right side of the oven, each air guide hood is in a shape with a large outer end and a small inner end, the air guide hoods are used for introducing hot air, an exhaust port is arranged at the top of the oven, and the exhaust port is used for leading out waste gas;

the goods shelf comprises a base and a driving mechanism, a guide frame is arranged on the base, a first sliding frame and a second sliding frame are connected onto the guide frame in a sliding mode, the first sliding frame and the second sliding frame can respectively slide on the guide frame in the up-down direction, and the first sliding frame and the second sliding frame are distributed in the front-back direction;

the left side and the right side of the guide frame are respectively provided with a plurality of brackets, the base is provided with a left support rod and a right support rod, the left support rod is positioned on the left side of the guide frame, the right support rod is positioned on the right side of the guide frame, the bracket positioned on the left side of the guide frame is rotatably connected to the left support rod, the bracket positioned on the right side of the guide frame is rotatably connected to the right support rod, the brackets positioned on the left support rod are distributed along the up-down direction, and the brackets positioned on the right support rod are distributed along the up-down direction;

the inner side of each bracket is provided with a handle frame, each handle frame comprises a handle rod, and the handle rods are arranged along the front-back direction;

a plurality of fork frames are respectively arranged on the first sliding frame and the second sliding frame, and each fork frame comprises an upper fork rod, a lower fork rod and a fork opening positioned between the upper fork rod and the lower fork rod;

the brackets on the odd-numbered layers are matched with the fork frames on the second sliding frame, and the brackets on the even-numbered layers are matched with the fork frames on the first sliding frame;

the matching mode of the bracket and the fork frame is that a handle lever of the bracket is arranged in the fork opening;

the driving mechanism is used for driving the first sliding frame and the second sliding frame to perform reverse periodic reciprocating sliding.

2. A system for drying insulation panels as claimed in claim 1 wherein said base is provided with a plurality of wheels, said shelves being movable out of said oven.

3. A system for drying insulation panels as claimed in claim 1 wherein a first fan is connected to each of the outside of each air guide sleeve, the first fan being adapted to promote the entry of heated air into said oven.

4. A system for drying insulation panels as claimed in claim 1 wherein said exhaust vents are provided with exhaust fans for facilitating exhaust of exhaust gases from the oven.

5. A system for drying insulation panels as claimed in claim 1, wherein said oven is provided with insulation.

6. The system for drying the insulation board according to claim 1, wherein the guide frame comprises four guide rods, each guide rod is vertically arranged, the four guide rods are distributed in a front-back direction, the first sliding frame is slidably connected between the two guide rods at the front side, the second sliding frame is slidably connected between the two guide rods at the rear side, the driving mechanism comprises a crank shaft, a first connecting rod, a second connecting rod and a driving motor, the crank shaft is rotatably connected to the upper end of the guide frame, the driving motor is in transmission connection with the crank shaft, the crank shaft comprises a first crank rocker and a second crank rocker, the first crank rocker and the second crank rocker are distributed at two sides of the rotating axis of the crank shaft, the axis of the first crank rocker, the axis of the second crank rocker and the rotating axis of the crank shaft are located in the same plane, one end of the first connecting rod is rotatably connected to the first crank rocker arm, the other end of the first connecting rod is hinged to the first sliding frame, one end of the second connecting rod is rotatably connected to the second crank rocker arm, and the other end of the second connecting rod is hinged to the second sliding frame.

7. The system for drying insulation panels as claimed in claim 6, wherein guide wheel assemblies are respectively provided on both sides of said first sliding frame and both sides of said second sliding frame, the guide wheel assemblies comprising a wheel frame, a first clamping wheel and a second clamping wheel, the first clamping wheel and the second clamping wheel being respectively rotatably connected to the wheel frame, the guide wheel assemblies being adapted to cooperate with said guide bars;

the guide wheel assembly and the guide rod are matched in a mode that the first clamping wheel and the second clamping wheel are distributed on the front side and the rear side of the guide rod, and the side face of the first clamping wheel and the side face of the second clamping wheel are respectively contacted with the side face of the guide rod.

8. The system for drying insulation panels as claimed in claim 7, wherein said first and second gripping wheels each comprise a wheel shaft, each wheel shaft being provided with a wheel bearing at each end, said wheel carrier comprising an inner gripping group and an outer gripping group, the inner gripping group comprising two inner gripping units detachably connected together in an up-down direction, the outer gripping group comprising two outer gripping units detachably connected together in an up-down direction, the two outer gripping units being adapted to grip two wheel bearings located at the outer ends, the two inner gripping units being adapted to grip two wheel bearings located at the inner ends.

9. A system for drying insulation panels as claimed in claim 1, wherein said support comprises an outer frame having a rectangular shape and a plurality of bottom rods provided in the outer frame, the upper side of the bottom rods being lower than the upper side of the outer frame.

Technical Field

The invention relates to the technical field of insulating plate processing, in particular to a system for drying an insulating plate.

Background

In the process of processing the insulating plate, the insulating plate needs to be dried. For example, an insulating board using alkali-free glass and epoxy resin as raw materials is manufactured by impregnating an alkali-free glass fiber cloth with epoxy resin, and the insulating board is dried after being manufactured.

The system for drying the insulating plate in the prior art has lower drying efficiency on the insulating plate.

Disclosure of Invention

The invention aims to provide a system for drying an insulating plate, which is used for improving the efficiency of the drying work of the insulating plate.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a system for drying an insulating plate comprises an oven and a shelf arranged in the oven, wherein air guide hoods are respectively arranged on the left side and the right side of the oven, each air guide hood is in a shape with a large outer end and a small inner end, the air guide hoods are used for introducing hot air, an exhaust port is arranged at the top of the oven, and the exhaust port is used for leading out waste gas;

the goods shelf comprises a base and a driving mechanism, a guide frame is arranged on the base, a first sliding frame and a second sliding frame are connected onto the guide frame in a sliding mode, the first sliding frame and the second sliding frame can respectively slide on the guide frame in the up-down direction, and the first sliding frame and the second sliding frame are distributed in the front-back direction;

the left side and the right side of the guide frame are respectively provided with a plurality of brackets, the base is provided with a left support rod and a right support rod, the left support rod is positioned on the left side of the guide frame, the right support rod is positioned on the right side of the guide frame, the bracket positioned on the left side of the guide frame is rotatably connected to the left support rod, the bracket positioned on the right side of the guide frame is rotatably connected to the right support rod, the brackets positioned on the left support rod are distributed along the up-down direction, and the brackets positioned on the right support rod are distributed along the up-down direction;

the inner side of each bracket is provided with a handle frame, each handle frame comprises a handle rod, and the handle rods are arranged along the front-back direction;

a plurality of fork frames are respectively arranged on the first sliding frame and the second sliding frame, and each fork frame comprises an upper fork rod, a lower fork rod and a fork opening positioned between the upper fork rod and the lower fork rod;

the brackets on the odd-numbered layers are matched with the fork frames on the second sliding frame, and the brackets on the even-numbered layers are matched with the fork frames on the first sliding frame;

the matching mode of the bracket and the fork frame is that a handle lever of the bracket is arranged in the fork opening;

the driving mechanism is used for driving the first sliding frame and the second sliding frame to perform reverse periodic reciprocating sliding.

Furthermore, a wheel set is arranged on the base, and the goods shelf can be moved out of the oven.

Furthermore, the outer side of each air guide sleeve is connected with a first fan, and the first fans are used for promoting hot air to enter the oven.

Furthermore, an exhaust fan is arranged on the exhaust port and used for promoting exhaust gas in the oven to be exhausted.

Further, a heat insulation layer is arranged on the oven.

Furthermore, the guide frame comprises four guide rods, each guide rod is vertically arranged, the four guide rods are distributed in the front-back direction, the first sliding frame is connected between the two guide rods on the front side in a sliding manner, the second sliding frame is connected between the two guide rods on the rear side in a sliding manner, the driving mechanism comprises a crank shaft, a first connecting rod, a second connecting rod and a driving motor, the crank shaft is connected to the upper end of the guide frame in a rotating manner, the driving motor is connected with the crank shaft in a transmission manner, the crank shaft comprises a first crank rocker and a second crank rocker, the first crank rocker and the second crank rocker are distributed on two sides of the rotating axis of the crank shaft, the axis of the first crank rocker, the axis of the second crank rocker and the rotating axis of the crank shaft are located in the same plane, one end of the first connecting rod is connected to the first crank rocker in a rotating manner, and the other end of the first connecting rod is hinged to the first sliding frame, one end of the second connecting rod is rotatably connected to the second crank rocker arm, and the other end of the second connecting rod is hinged to the second sliding frame.

Furthermore, guide wheel assemblies are respectively arranged on two sides of the first sliding frame and two sides of the second sliding frame, each guide wheel assembly comprises a wheel frame, a first clamping wheel and a second clamping wheel, the first clamping wheel and the second clamping wheel are respectively and rotatably connected to the wheel frames, and the guide wheel assemblies are used for being matched with the guide rods;

the guide wheel assembly and the guide rod are matched in a mode that the first clamping wheel and the second clamping wheel are distributed on the front side and the rear side of the guide rod, and the side face of the first clamping wheel and the side face of the second clamping wheel are respectively contacted with the side face of the guide rod.

Furthermore, first centre gripping wheel and second centre gripping wheel each include a shaft, and the both ends of every shaft respectively are equipped with a wheel bearing, the wheel carrier includes interior centre gripping group and outer centre gripping group, and interior centre gripping group includes two interior centre gripping units that detachably links together in the upper and lower direction, and outer centre gripping group includes two outer centre gripping units that detachably links together in the upper and lower direction, and two outer centre gripping units are used for the centre gripping to be located two wheel bearings of outer end, and two interior centre gripping units are used for the centre gripping to be located two wheel bearings of inner.

Furthermore, the bracket comprises an outer frame and a plurality of bottom rods, the outer frame is rectangular, the bottom rods are arranged in the outer frame, and the upper side surface of each bottom rod is lower than that of the outer frame.

Furthermore, be equipped with left bracing piece sleeve and right branch vaulting pole sleeve on the base, the lower extreme of left branch vaulting pole is pegged graft in left bracing piece sleeve, the lower extreme of right branch vaulting pole is pegged graft in right bracing piece sleeve, is equipped with left locking bolt on the left branch vaulting pole sleeve, and left locking bolt is arranged in locking left branch vaulting pole sleeve, is equipped with right locking bolt on the right branch vaulting pole sleeve, and right locking bolt is arranged in locking right branch vaulting pole sleeve.

Further, the handle frame is detachably connected to the bracket.

Further, the handle bar is cylindrical.

Has the advantages that:

the use mode of the invention is that the two air guide sleeves are respectively connected to a hot air pipeline in a workshop, and then hot air is introduced into the oven through the air guide sleeves. The exhaust port is connected to an exhaust gas treatment system for treating exhaust gas generated during the drying process. Exhaust gas treatment systems are known in the art and will not be described in detail herein. Insulating plates to be dried are placed on the brackets, and each bracket is used for placing one insulating plate. After the insulating plate is placed, the driving mechanism drives the first sliding frame and the second sliding frame to perform reverse periodic reciprocating sliding. In the process of performing reverse periodic reciprocating sliding on the first sliding frame and the second sliding frame, under the matching action of the corresponding fork frames, each bracket continuously reciprocates; the swing directions of two adjacent brackets in the up-down direction are opposite, so that the space volumes between the two adjacent brackets in the up-down direction are changed at any moment, the dynamic change of air pressure is further promoted, the air flow is further promoted, the flowability of the air in the area between the two adjacent brackets in the up-down direction is promoted, and the efficiency of drying or airing the plate is further improved. Simultaneously, the symmetrical swing of the bracket that is located the leading truck both sides can further improve gaseous mobility, further improves the efficiency of stoving or airing. In the swing process, the insulating plate can play a role of fan blades, so that the flow of gas is promoted, and the drying effect of the insulating plate is accelerated. Meanwhile, hot air enters the oven from the left side and the right side of the oven through the two guide hoods, then upwards flows out of the oven through the exhaust port, and in the flowing process of the hot air, the flushing effect of the hot air flow on the surface of the insulation board can be greatly improved by matching with the flaring effect of each insulation board, so that the drying efficiency of the insulation board is greatly improved.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present invention;

fig. 2 is a schematic perspective view of a shelf according to a first embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a front view of FIG. 2;

FIG. 5 is a top view of FIG. 2;

FIG. 6 is a cross-sectional view B-B of FIG. 5;

FIG. 7 is a cross-sectional view C-C of FIG. 5;

FIG. 8 is a cross-sectional view D-D of FIG. 5;

FIG. 9 is a perspective view of the guide wheel assembly;

fig. 10 is a schematic perspective view of a shelf according to a second embodiment;

in the figure: 1 base, 11 left support bar, 12 right support bar, 13 guide bar, 14 left support bar sleeve, 15 right support bar sleeve, 16 left locking bolt, 17 right locking bolt, 2 first sliding frame, 21 upper fork bar, 22 lower fork bar, 23 fork mouth, 3 second sliding frame, 4 outer frame, 41 handle frame, 42 handle bar, 43 bottom bar, 44 bracket rotating shaft, 45 bracket bearing, 5 crank shaft, 51 first connecting rod, 52 second connecting rod, 53 driving motor, 54 first crank rocker, 55 second crank rocker, 6 guide wheel assembly, 61 first clamping wheel, 62 second clamping wheel, 63 wheel shaft, 64 wheel bearing, 65 inner clamping unit, 66 outer clamping unit, 7 oven, 71 guide cover, 72 exhaust port, 73 first fan, 74 heat preservation layer, 8 wheel.

Detailed Description

The first implementation mode comprises the following steps:

in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In describing the pallet, the terms "upper", "lower", "left", "right", "front" and "rear" refer to the orientation relative to the view of FIG. 2.

As shown in fig. 1, a system for drying an insulating plate includes an oven 7 and a shelf disposed in the oven, wherein air guides 71 are disposed on left and right sides of the oven 7, a cross section perpendicular to the left and right directions in the air guides 71 is defined as a cross section of the air guides 71, and the cross section of the air guides 71 is rectangular. Defining: one end of the air guide sleeve 71 close to the inner cavity of the oven 7 is the inner end of the oven 7; the end of the air guide sleeve 71 far away from the inner cavity of the oven 7 is the outer end of the air guide sleeve 71. Each air guide sleeve 71 is in a shape with a large outer end and a small inner end, the air guide sleeves 71 are used for introducing hot air, the top of the oven 7 is provided with an exhaust port 72, and the exhaust port 72 is used for leading out waste gas. The oven 7 is provided with a heat-insulating layer 74. The outer side of each air guide sleeve 71 is connected with a first fan 73, and the first fan 73 is used for promoting hot air to enter the oven 7. The goods shelf comprises a base 1 and a driving mechanism

As shown in fig. 2 to 8, a guide frame is disposed on the base 1, a first sliding frame 2 and a second sliding frame 3 are slidably connected to the guide frame, and the first sliding frame 2 and the second sliding frame 3 can respectively slide on the guide frame in the up-down direction. The first carriage 2 and the second carriage 3 are distributed according to a front-to-rear direction, that is to say both the first carriage 2 and the second carriage 3 are distributed with one in front and the other in rear; the first carriage 2 is disposed on the front side of the second carriage 3. The leading truck includes four guide bars 13, and each guide bar 13 is vertical setting respectively, and four guide bars 13 distribute according to the fore-and-aft direction, and 2 sliding connection of first carriage are between two guide bars 13 that are located the front side, and 3 sliding connection of second carriage are between two guide bars 13 that are located the rear side.

As shown in fig. 2 to 8, the left and right sides of the guide frame are respectively provided with a plurality of brackets for placing and lifting the insulating plate. As a preferred structure of bracket, the bracket includes frame 4 and a plurality of sill bar 43, and frame 4 is the rectangle, and sill bar 43 establishes in the frame, and the side of going up of sill bar 43 is less than the side of going up of frame, and sill bar 43 is used for lifting the work to the insulation board, and frame 4 of bracket can carry out certain spacing work to the insulation board, avoids being located the insulation board landing on the bracket. A left support rod 11 and a right support rod 12 are arranged on the base 1, and the left support rod 11 is located on the left side of the guide frame. The right support bar 12 is located on the right side of the guide frame. The bracket on the left side of the guide frame is rotatably connected to the left support rod, the bracket on the right side of the guide frame is rotatably connected to the right support rod 12, the brackets on the left support rod 11 are distributed along the up-down direction, and the brackets on the right support rod 12 are distributed along the up-down direction. Two left support bars 11 are arranged on the base in tandem, and two right support bars 12 are arranged on the base in tandem. By definition, the side of the bracket facing the guide frame is the inner side of the bracket. Each of the brackets is provided with a handle frame 41 on an inner side thereof, and the handle frame 41 includes a handle bar 42, and the handle bar 42 is arranged in the front-rear direction. On the first carriage 2 and on the second carriage 3, respectively, a number of forks are provided, which forks comprise an upper fork bar 21, a lower fork bar 22 and a fork opening 23 between the upper fork bar 21 and the lower fork bar 22. The upper fork rod 21 and the lower fork rod 22 are arranged in parallel, and the distance consistency between the upper fork rod 21 and the lower fork rod 22 is ensured.

As shown in fig. 2 to 8, nine brackets are respectively disposed on the left and right sides of the guiding frame, the nine brackets on the left side of the guiding frame are respectively the 1 st, 2 nd, 3 rd, 4 th, 5 th, 6 th, 7 th, 8 th and 9 th brackets from top to bottom, the nine brackets on the right side of the guiding frame are respectively the 1 st, 2 nd, 3 rd, 4 th, 5 th, 6 th, 7 th, 8 th and 9 th brackets from top to bottom, and the odd number of brackets are engaged with the fork on the second sliding frame 3, that is, the brackets on the 1 st, 3 rd, 5 th, 7 th and 9 th brackets are engaged with the fork on the second sliding frame 3. The carriages of the even number of levels cooperate with the forks located on the first carriage 2, that is to say the carriages located at the levels 2, 4, 6, 8 cooperate with the forks located on the first carriage 3. The bracket is fitted to the fork in such a way that the handle bar 42 of the bracket is placed in the fork opening 23.

As shown in fig. 2 to 7, the driving mechanism is used for driving the first sliding frame 2 and the second sliding frame 3 to perform reverse periodic reciprocating sliding, specifically explained as that the driving mechanism is used for driving the first sliding frame 2 and the second sliding frame 3 to perform periodic reciprocating up-and-down sliding movement respectively, and at any moment of movement, the moving directions of the first sliding frame 2 and the second sliding frame 3 are opposite, if the first sliding frame 2 slides upwards, the second sliding frame 3 slides downwards; if the first carriage 2 slides downward, the second carriage 3 slides upward.

As shown in fig. 1 to 8, the present invention is used by connecting two hoods 71 to hot air pipes in a workshop, respectively, and then introducing hot air into the oven 7 through the hoods 71. The exhaust port 72 is connected to an exhaust gas treatment system for treating exhaust gas generated during the drying process. Exhaust gas treatment systems are known in the art and will not be described in detail herein. Insulating plates to be dried are placed on the brackets, and each bracket is used for placing one insulating plate. After the insulation boards are placed, the driving mechanism drives the first sliding frame 2 and the second sliding frame 3 to perform reverse periodic reciprocating sliding. In the process of carrying out reverse periodic reciprocating sliding on the first sliding frame 2 and the second sliding frame 3, under the matching action of the corresponding fork frames, each bracket continuously reciprocates; the swing directions of two adjacent brackets in the up-down direction are opposite, so that the space volumes between the two adjacent brackets in the up-down direction are changed at any moment, the dynamic change of air pressure is further promoted, the air flow is further promoted, the flowability of the air in the area between the two adjacent brackets in the up-down direction is promoted, and the efficiency of drying or airing the plate is further improved. Simultaneously, the symmetrical swing of the bracket that is located the leading truck both sides can further improve gaseous mobility, further improves the efficiency of stoving or airing. In the swing process, the insulating plate can play a role of fan blades, so that the flow of gas is promoted, and the drying effect of the insulating plate is accelerated. Meanwhile, hot air enters the oven from the left side and the right side of the oven 7 through the two guide hoods 71 and then flows out of the oven upwards through the exhaust port 72, and the hot air is matched with the exciting effect of each insulating plate in the flowing process, so that the scouring effect of the hot air flow on the surface of the insulating plate can be greatly improved, and the drying efficiency of the insulating plate is greatly improved.

As shown in fig. 2, 4, 5, 6, 7 and 8, the driving mechanism includes a crank shaft 5, a first link 51, a second link 52 and a driving motor 53. The crank shaft 5 is rotatably connected to the upper end of the guide frame, and the driving motor 53 is in transmission connection with the crank shaft 5. The bell crank shaft 5 includes a first bell crank arm 54 and a second bell crank arm 55. The first and second bell crank arms 54 and 55 are distributed on both sides of the rotational axis of the bell crank shaft 5. The axis of the first bell crank arm 54, the axis of the second bell crank arm 55 and the axis of rotation of the bell crank shaft 5 are located in the same plane. One end of the first connecting rod 51 is rotatably connected to the first crank rocker 54, the other end of the first connecting rod 51 is hinged to the first sliding frame 2, and one end of the second connecting rod 52 is rotatably connected to the second crank rocker 55. The other end of the second connecting rod is hinged to the second carriage 3. This kind of structure of actuating mechanism does benefit to the first carriage 2 of smooth-going drive and the reciprocal slip of reverse periodicity with second carriage 3, and in the driving process, the rotation that driving motor 53 lasts just can drive the reciprocal slip of the reciprocal periodicity of the first carriage 2 of drive and second carriage 3, and this kind of difficulty that does benefit to the reduction to driving motor 53 control. The driving motor 53 is of a type having a shutdown self-locking function.

As shown in fig. 2 and 9, guide wheel assemblies 6 are provided on both sides of the first sliding frame 2 and both sides of the second sliding frame 3. The guide wheel assembly 6 comprises a wheel frame, a first clamping wheel 61 and a second clamping wheel 62, wherein the first clamping wheel 61 and the second clamping wheel 62 are respectively and rotatably connected to the wheel frame. The guide wheel assembly 6 is adapted to cooperate with the guide bar 13. The guide wheel assembly 6 is matched with the guide rod 13 in such a way that the first clamping wheel 61 and the second clamping wheel 62 are distributed on the front side and the rear side of the guide rod 13, and the side surface of the first clamping wheel 61 and the side surface of the second clamping wheel 62 are respectively contacted with the side surface of the guide rod 13. After the guide wheel assembly is matched with the guide rod, the guide wheel assembly is used for guiding the up-and-down sliding of the first sliding frame 2 or the up-and-down sliding of the second sliding frame 3, and the smoothness of the sliding of the first sliding frame 2 or the second sliding frame 3 is guaranteed. The first clamping wheel 61 and the second clamping wheel 62 each comprise an axle 63. Each wheel shaft 63 has a wheel bearing 64 at each end, and the wheel carrier includes an inner clamping group including two inner clamping units 65 detachably coupled together in the up-down direction and an outer clamping group including two outer clamping units 66 detachably coupled together in the up-down direction. By definition, the side of the first carriage 2 or the second carriage 3 close to the clamping assembly is the inner side and the other side is the outer side, the two outer clamping units 66 are used for clamping the two wheel bearings at the outer end and the two inner clamping units 65 are used for clamping the two wheel bearings 64 at the inner end. The structure of the guide wheel assembly is beneficial to the disassembly and assembly work of the guide wheel assembly in the invention and is also convenient for the disassembly and assembly work of the invention.

As shown in fig. 2, 4, 5 and 7, the base 1 is provided with a left support rod sleeve 14 and a right support rod sleeve 15, and the lower end of the left support rod 11 is inserted into the left support rod sleeve 14. The lower extreme of right branch vaulting pole 12 is pegged graft in right branch vaulting pole sleeve 15, is equipped with left locking bolt 16 on the left branch vaulting pole sleeve 14, and left locking bolt 16 is used for locking left branch vaulting pole 11 in left branch vaulting pole sleeve 14, is equipped with right locking bolt 17 on the right branch vaulting pole sleeve 15, and right locking bolt 17 is used for locking right branch vaulting pole 12 in right branch vaulting pole sleeve 15. This facilitates the work of detachably attaching the left support bar 11 and the right support bar 12 to the base 1, facilitating the working work of the present invention.

As shown in fig. 2 and 3, the handle frame 41 is detachably connected to the bracket to facilitate the assembly of the handle members on the bracket and to facilitate the working of the present invention.

As shown in fig. 2, 3, 5 and 6, the handle bar 42 is cylindrical, which is beneficial to reduce the abrasion between the handle bar 42 and the fork frame and ensure the smoothness of the swinging of the bracket. In the actual use process, a rotatable sleeve can be sleeved on the outer side of the handle rod 42, so that the abrasion work of the fork can be further reduced.

As shown in fig. 4, the bracket is detachably connected to the bracket rotating shaft 44, and the left support bar 11 and the right support bar 12 are respectively provided with a bracket bearing 45, and the bracket bearing 45 is rotatably connected to the bracket rotating shaft 44.

Do benefit to the connection of dismantling of bracket, also do benefit to the smooth and easy nature when guaranteeing the bracket swing.

In addition, for the promotion of the airflow, the first fan is arranged on the air guide sleeve in the first embodiment. A second fan may be installed on the exhaust outlet to promote the exhaust of the exhaust gas, so as to promote the flow velocity of the gas in the oven.

The second embodiment:

the second embodiment differs from the first embodiment in that the shelves in the second embodiment can be removed from the oven.

As shown in fig. 10, the base 1 is provided with wheel sets, and the shelf can be moved out of the oven. The wheelset is used for making things convenient for the removal work of goods shelves, sets up 6 wheels and constitutes the wheelset.