CN217900502U - Feeding cart and heating equipment - Google Patents

Abstract

The utility model provides a feeding shallow and firing equipment. The feeding cart comprises a main body, a first roller, a second roller and a bearing plate; the first idler wheel is rotatably connected to the bottom of the main body, the second idler wheel is rotatably connected to the top of the main body, the bearing plate is provided with at least one bearing plate and located above the main body, the top of the bearing plate is used for bearing a workpiece, the top of the second idler wheel is abutted to the bottom of the bearing plate closest to the main body, and the melting point of the bearing plate is higher than that of the workpiece. The utility model discloses a feeding trolley can improve the efficiency that the work piece shifted to the fritting furnace from the degrease stove to and reduce the impaired risk of in-process work piece that the material shifted to the fritting furnace from the degrease stove.

Description

Feeding cart and heating equipment

Technical Field

The utility model relates to a powder metallurgy technical field especially relates to a feeding shallow and firing equipment.

Background

In the prior art, in the powder metallurgy process, feeding to the degreasing furnace can be realized by utilizing a trolley. For example, a trolley is provided with a roller, a material frame is arranged above the roller, a plurality of material trays are arranged in the material frame, and materials are placed on the material trays; when feeding is needed, the material frame on the cart is pushed into the degreasing furnace.

After the materials are degreased, sintering treatment is needed; however, the temperature of the sintering furnace is usually higher than that of the degreasing furnace, and because the material frame cannot bear the high temperature in the sintering furnace, the degreased material needs to be transferred from the material tray to the high-temperature-resistant graphite plate, and then the graphite plate and the material are fed into the sintering furnace. However, this process takes a long time, which is not favorable for improving the production efficiency; furthermore, the degreased material is generally fragile, and the material is easily cracked or crushed during the process of transferring the material from the material frame to the graphite plate.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a feeding shallow can improve the efficiency that the material shifted the fritting furnace from the degrease stove to and reduce the impaired risk of in-process material that the material shifted the fritting furnace from the degrease stove.

The utility model discloses still provide a firing equipment who has above-mentioned feeding shallow.

According to the utility model discloses a feeding shallow of first aspect embodiment includes: a main body; the first roller is rotatably connected to the bottom of the main body; the second roller is rotatably connected to the top of the main body; the bearing plate is provided with at least one bearing plate and located above the main body, the top of the bearing plate is used for bearing a workpiece, the top of the second roller is abutted to the bottom of the bearing plate closest to the main body, and the melting point of the bearing plate is higher than that of the workpiece.

According to the utility model discloses feeding shallow has following beneficial effect at least: the loading board of being made by graphite, pottery or metal can bear high temperature, the utility model provides a feeding shallow utilizes the loading board to bear the work piece. After the bearing plate and the material are taken out of the degreasing furnace, the bearing plate and the workpiece can be directly sent into a sintering furnace. That is, in the process that the material needs to be shifted to the fritting furnace from the degrease stove, all the time by the loading board bears the work piece, this in-process need not to change tray or the tool that is used for bearing the work piece. Because need not to change tray or tool, the user need not direct touch and snatch the work piece after the degrease to avoid the work piece because of user's snatching the fracture or smash. In addition, due to the fact that the trays or jigs do not need to be replaced, the time for transferring the workpieces among different trays is saved in the process of transferring the materials from the degreasing furnace to the sintering furnace, the time consumed for transferring the materials from the degreasing furnace to the sintering furnace is short, and the production efficiency is improved.

According to some embodiments of the invention, the carrier plate is made of graphite or ceramic or metal.

According to some embodiments of the utility model, the loading board is provided with a plurality ofly, follows the loading board is in the slip direction on the first gyro wheel is a plurality of the adjacent setting of loading board.

According to some embodiments of the present invention, the axial direction of the second roller is set to a first horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction; the feeding cart further comprises first stop members, second stop members and third stop members, the first stop members, the second stop members and the third stop members are arranged at the top of the main body in a protruding mode, the number of the first stop members is two, the two first stop members are arranged at two ends of the main body along the first horizontal direction respectively, the third stop members and the second stop members are arranged at two ends of the main body along the second horizontal direction respectively, and the third stop members and the first stop members are detachably connected; the third stop part, the second stop part and the first stop part are all arranged on the periphery of the bearing plate, and the top end of the third stop part, the top end of the second stop part and the top end of the first stop part are all higher than the bottom surface of the bearing plate.

According to some embodiments of the utility model, along first horizontal direction and second horizontal direction, the second gyro wheel all is provided with a plurality ofly, wherein, all second gyro wheels's axial is the same, the second gyro wheel axial with first horizontal direction is the same, the second horizontal direction with first horizontal direction is perpendicular.

According to some embodiments of the invention, the body comprises: the first roller is arranged at the bottom of the chassis; the top frame is arranged above the bottom frame, and the second roller is arranged at the top of the top frame; the lifting device is connected with the bottom frame and the top frame and can drive the top frame to lift relative to the bottom frame.

According to the utility model discloses a heating equipment of second aspect embodiment includes: the feeding cart of the embodiment of the first aspect; the stove, including furnace body, furnace gate and third gyro wheel, the furnace body has heating chamber and opening, the opening communicate in the heating chamber, the furnace gate with furnace body swing joint, the furnace gate can cover the opening is in order to seal the heating chamber, the third gyro wheel install in the diapire in heating chamber, the top of third gyro wheel can with the bottom surface of loading board is supported and is held.

According to some embodiments of the invention, the fourth stop is for obstructing the passage of the loading plate through the opening.

According to some embodiments of the present invention, the oven further comprises a fourth stop member detachably connected to the oven body, the fourth stop member covering a portion of the opening; when the loading plate is located in the heating cavity, the top of the fourth stopper is higher than the bottom surface of the loading plate.

According to some embodiments of the present invention, the stove further includes a fifth stop member and two sixth stop members, the fifth stop member and the sixth stop member are all disposed in the heating chamber, the fifth stop member is located the heating chamber is kept away from the open-ended one end, two the sixth stop member is respectively located the two sides of the heating chamber, the fifth stop member and the sixth stop member are all used for limiting the loading plate.

According to some embodiments of the present invention, the stove further comprises a hook, the hook is connected to one side of the stove body where the opening is provided, the hook is bent upward, a second gap is defined between the hook and the stove body, the fourth stop member is disposed in the second gap, and the hook abuts against the bottom of the fourth stop member; or one end of the fourth stop piece is rotatably connected with the furnace body, and the other end of the fourth stop piece can be clamped into the wall surface of the heating cavity.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the following figures and examples, in which:

fig. 1 is a schematic view of a heating apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of the oven of FIG. 1;

FIG. 3 is a schematic view of a third roller in the oven;

FIG. 4 is a schematic view of the feeding cart in FIG. 1 (with a carrier plate and workpiece placed thereon);

FIG. 5 is a schematic view of the infeed cart of FIG. 4 without a load bearing plate and workpiece positioned thereon;

FIG. 6 is an enlarged view of area B of FIG. 5;

FIG. 7 is an enlarged view of area A of FIG. 2;

FIG. 8 is a schematic view of the hanger of FIG. 7 when not connected to a fourth stop;

FIG. 9 is a simplified diagram of the connection between the support and the carrier;

fig. 10 is a schematic view of a sixth stopper.

Reference numerals: 100-heating equipment, 101-furnace, 102-feeding cart, 103-loading plate, 104-furnace body, 105-furnace door, 106-first roller, 107-frame, 201-opening, 202-heating chamber, 203-fourth stop member, 301-third roller, 401-top frame, 402-lifting device, 403-bottom frame, 404-main body, 405-first stop member, 406-third stop member, 407-second stop member, 408-supporting member, 409-workpiece, 410-carrier, 501-second roller, 601-first notch, 602-limiting frame, 701-hook, 702-second notch, 801-positioning groove, 802-fifth stop member, 803-sixth stop member.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 4-5, the present disclosure provides a feeding cart 102, the feeding cart 102 comprising a main body 404, a first roller 106, a second roller 501, and a loading plate 103.

Referring to fig. 4 and 5, the first roller 106 is rotatably connected to the bottom of the main body 404, and the first roller 106 can save the effort of the user in pushing the main body 404 and the object carried by the main body 404. The second roller 501 is rotatably connected to the top of the main body 404, and the second roller 501 is mainly used to save the effort of the user in pushing the loading plate 103 into the oven 101 and the effort of the user in pulling the loading plate 103 out of the oven 101 to the feeding cart 102.

The bearing plate 103 is provided with at least one bearing plate 103, the bearing plate 103 is arranged above the main body 404, the bottom of the bearing plate 103 is abutted against the top of the second roller 501, the top of the bearing plate 103 is used for bearing a workpiece 409, and the workpiece 409 is a material which needs to enter the degreasing furnace and the sintering furnace for processing. The melting point of the bearing plate 103 is higher than that of the workpiece 409 carried by the bearing plate.

The "top of the carrier plate 103 bears the workpiece 409" may specifically be that the top of the carrier plate 103 directly contacts the workpiece 409 to support the workpiece 409; alternatively, as shown in fig. 4, in the case where the carrier plate 103 does not facilitate direct contact with the workpiece 409, the carrier 410 may be placed on the carrier plate 103, and the workpiece 409 may be placed on the carrier 410.

The following briefly explains a process in which the user sequentially feeds the workpiece 409 into the degreasing furnace and the sintering furnace. First, as shown in fig. 4, the user places the workpiece 409 on the loading plate 103. Then, as shown in fig. 1, the user pushes the feeding cart 102 to a feeding port of the degreasing furnace (the feeding port and the discharging port may be the same opening), and pushes the carrying plate 103 and the workpiece 409 on the carrying plate 103 into the degreasing furnace. After the degreasing is completed, the user opens the degreasing furnace, and then pulls out the carrier plate 103 from the degreasing furnace, and the pulled carrier plate 103 moves onto the second roller 501. Next, the user pushes the feeding cart 102 down to the feeding port of the sintering furnace and pushes the carrier plate 103 and the workpiece 409 on the carrier plate 103 into the sintering furnace. After the sintering is completed, the user pulls out the carrier plate 103 from the sintering furnace, and the pulled-out carrier plate 103 moves onto the second roller 501 again.

The utility model provides a feeding shallow 102 utilizes the melting point to bear work piece 409 than the bearing board 103 that work piece 409 is high, and after bearing board 103 and work piece 409 took out from the degrease stove, bearing board 103 and work piece 409 can directly send into in the sintering furnace. That is, in the process of transferring the workpiece 409 from the degreasing furnace to the sintering furnace, the workpiece 409 is always carried by the carrier plate 103, and during this process, there is no need to replace a tray or jig for carrying the workpiece 409. Because the tray or the jig does not need to be replaced, the user does not need to directly touch and grab the degreased workpiece 409, and the workpiece 409 is prevented from cracking or crushing due to grabbing of the user. In addition, due to the fact that the trays or jigs do not need to be replaced, the time for transferring the workpieces 409 between different trays is saved in the process of transferring the workpieces 409 from the degreasing furnace to the sintering furnace, time consumed for transferring the workpieces 409 from the degreasing furnace to the sintering furnace is short, and production efficiency is improved.

The structure of the feeding cart 102 will be described in detail below.

To ensure that the carrier plate 103 has a higher melting point than the workpiece 409, the carrier plate 103 can be made of graphite or ceramic or metal. Wherein, if the carrier plate 103 is made of metal, the material of the carrier plate 103 should be metal with higher melting point (e.g. tungsten)

In some embodiments, the carrier plate 103 may be provided in a plurality, and the plurality of carrier plates 103 are distributed along the sliding direction of the carrier plate 103 on the second roller 501. For example, based on fig. 5, the carrier plate 103 can slide back and forth after being placed on the second roller 501, and accordingly, if a plurality of carrier plates 103 are provided, the plurality of carrier plates 103 are distributed in the back and forth direction. The adjacent bearing plates 103 do not need to be tightly connected together, and when the bearing plates 103 and the workpieces 409 need to be fed into a degreasing furnace or a sintering furnace, all the bearing plates 103 can be pushed into the furnace by pushing the bearing plate 103 farthest from the furnace; in order to pull out the carrier plate 103 from the furnace, the carrier plates 103 may be pulled out one by one.

In order to improve the smoothness of the movement of the loading plate 103 and prevent the loading plate 103 from tilting, the second rollers 501 may be provided in plurality in both the first horizontal direction and the second horizontal direction. Referring to fig. 5, all the second rollers 501 have the same axial direction, the first horizontal direction is the same as the axial direction of the second rollers 501, and the second horizontal direction is perpendicular to the first horizontal direction. Referring to fig. 5, the first horizontal direction corresponds to the left-right direction, and the second horizontal direction corresponds to the front-rear direction.

With reference to fig. 1, 4 and 5, when the carrying plate 103 enters the oven 101 or is transferred from the oven 101 to the upper side of the main body 404, the carrying plate 103 moves along the second horizontal direction, and the arrangement of the second rollers 501 along the second horizontal direction is beneficial to ensuring the smoothness and the stability of the carrying plate 103 during movement. The plurality of second rollers 501 disposed along the first horizontal direction is advantageous for stably supporting the carrier plate 103 so as to prevent the carrier plate 103 from tilting.

In order to heat a large number of workpieces 409 at once, a plurality of layers of workpieces 409 can be arranged on the carrier plate 103. Specifically, a carrier 410 can be placed on the carrier plate 103, and the top surface of the carrier 410 is used for placing the workpiece 409; two carriers 410 adjacent above and below are supported by the support member 408. The supports 408 serve to prevent damage to the workpiece 409 caused by the overlying carrier 410 pressing directly against the workpiece 409. In addition, because the two carriers which are adjacent up and down are arranged at intervals, the hot air in the furnace can smoothly flow into the gap between the carriers, thereby improving the heating effect on the workpiece 409.

The support member 408 may also be made of a high temperature resistant material such as ceramic, graphite, etc. so that the support member 408 has a higher melting point than the workpiece 409, thereby allowing the support member 408 to be fed directly into the sintering furnace. That is, the workpiece 409 needs to be transferred from the degreasing furnace to the sintering furnace without replacing the support 408 for supporting the adjacent two carriers, which is advantageous in saving the time taken for transferring the workpiece 409 from the degreasing furnace to the sintering furnace, thereby being advantageous in improving the production efficiency. Further, referring to fig. 9, in some embodiments, the carrier has a positioning groove 801, and the end of the support 408 is received in the positioning groove 801, thereby achieving the connection between the support and the carrier.

Referring to fig. 5, in some embodiments, the feed cart 102 further includes a first stop 405, a second stop 407, and a third stop 406. If the one of the carrier plates 103 closest to the main body 404 is referred to as the carrier plate 103, friction between the carrier plate 103 and the second rollers 501 is small, and the carrier plate 103 and the other carrier plates 103 easily slide during the entire movement of the feeding cart 102 or when the feeding cart 102 is at rest. The first stopper 405, the second stopper 407 and the third stopper 406 are used to restrict the sliding range of the loading plate 103 and prevent the loading plate 103 and the workpiece 409 from falling to the ground.

With reference to fig. 4 and 5, the first stopper 405, the second stopper 407 and the third stopper 406 are disposed at the top of the main body 404 in a protruding manner, and all of the three are disposed at the periphery of the loading plate 103; and the top ends of the three are all higher than the bottom surface of the bearing plate 103 to ensure that the three can be abutted against the edge of the bearing plate 103. Referring to fig. 5, the number of the first stoppers 405 is two, and the two first stoppers 405 are respectively disposed at both ends of the main body 404 in the first horizontal direction, and corresponding to the specific direction of fig. 5, the two first stoppers 405 are respectively disposed at both left and right ends of the main body 404. The second stopper 407 and the third stopper 406 are respectively disposed at both ends of the main body 404 in the second horizontal direction, and corresponding to the specific direction of fig. 5, the second stopper 407 is disposed at the rear end of the main body 404, and the third stopper 406 is disposed at the front end of the main body 404. The third stopper 406 is detachably connected to the first stopper 405.

With reference to fig. 4 and 5, if the bearing plate 103 slides leftwards or rightwards, the first stop member 405 can abut against the bearing plate 103, so as to restrict the left-right movement range of the bearing plate 103; if the carrier plate 103 slides backward, the second stop member 407 can abut against the carrier plate 103 to restrict the maximum distance of backward movement of the carrier plate 103; if the carrier plate 103 slides forward, the third stop member 406 can abut against the carrier plate 103 to limit the maximum distance of forward movement of the carrier plate 103. With reference to fig. 1, 4 and 5, when the loading plate 103 and the workpiece 409 need to be fed into the oven 101, or the loading plate 103 and the workpiece 409 need to be taken out, the third stop member 406 can be detached, and the end of the main body 404 originally provided with the third stop member 406 is directly opposite to the feeding port of the oven 101, so that the loading plate 103 can pass through the position originally blocked by the third stop member 406.

Fig. 6 shows one of the simpler detachable connections between the third stop member 406 and the first stop member 405. With reference to fig. 5 and 6, the third stopper 406 has two first notches 601, the first notches 601 are disposed at two ends of the third stopper 406 along the first horizontal direction and are disposed at the bottom of the third stopper 406, the first notches 601 are disposed downward, and each first stopper 405 is respectively accommodated in the first notches 601. With reference to fig. 5 and 6, when the third stopper 406 needs to be removed, the third stopper 406 is lifted upwards, so that the third stopper 406 and the first stopper 405 can be separated; when the third stopper 406 needs to be installed, the third stopper 406 is placed on the first stopper 405 from above, and the first stopper 405 is snapped into the first notch 601.

Referring to fig. 6, in some embodiments, the feeding cart 102 is further provided with a limiting frame 602, the limiting frame 602 is disposed on a side of the third stopper 406 opposite to the second stopper 407, and the limiting frame 602 can abut against the third stopper 406, so as to prevent the third stopper 406 from being pushed by the carrying plate 103 to generate an excessive displacement.

Referring to fig. 4, to improve the fit between the feed cart 102 and the different ovens 101, in some embodiments, the main body 404 includes a bottom frame 403, a top frame 401, and a lifting device 402. The first roller 106 is installed at the bottom of the bottom frame 403, the second roller 501 is installed at the top of the top frame 401, the top frame 401 is arranged above the bottom frame 403, the top frame 401 and the bottom frame 403 are both connected with the lifting device 402, and the lifting device 402 is used for driving the top frame 401 to lift relative to the bottom frame 403, so that the bearing plate 103 is driven to lift. The heights of the feeding ports of the furnaces 101 are different for different furnaces 101, and in the case that the main body 404 includes the lifting device 402, the height of the supporting plate 103 can be adjusted to fit the feeding ports of different furnaces 101.

The elevator 402 may be arranged in different ways. In some embodiments, the lifting device 402 may comprise a hydraulic cylinder, the bottom of the cylinder body of the hydraulic cylinder is connected with the bottom frame 403, the piston rod of the hydraulic cylinder is vertically arranged, and the top of the piston rod is connected with the top frame 401. Alternatively, referring to FIG. 4, in other embodiments, the lifting device 402 may be configured as a scissor lift mechanism. This is not an example.

Referring to fig. 1, the present invention also provides a heating apparatus 100, wherein the heating apparatus 100 comprises a furnace 101 and a feeding cart 102 in any of the above embodiments.

The oven 101 includes a frame 107, an oven body 104, an oven door 105, and a third roller 301. Referring to fig. 1 and 2, the furnace body 104 and the furnace door 105 are both connected to the rack 107, the furnace body 104 has a heating cavity 202 and an opening 201, the heating cavity 202 is used for accommodating the carrier plate 103 and the workpiece 409 placed on the carrier plate 103. The oven 101 also includes a heating device (not shown) mounted to the frame for heating the workpiece 409 in the heating cavity 202. The opening 201 is communicated with the heating cavity 202, and the opening 201 can be used as a feed inlet and a discharge outlet of the furnace body 104. The oven door 105 is movably connected (e.g., pivotally connected by a hinge) to the oven body 104, and the oven door 105 can cover the opening 201 to enclose the heating cavity 202. Referring to fig. 3, the third roller 301 is installed on the bottom wall of the heating cavity 202, and the top of the third roller 301 can abut against the bottom surface of the carrier plate 103. The oven 101 is provided with the third roller 301 to reduce the resistance of the loading plate 103 to enter and exit the oven 101. Further, in the heating apparatus 100, two burners 101 may be provided, in which one burner 101 is provided as a degreasing furnace and the other burner 101 is provided as a sintering furnace.

Referring to fig. 7, in some embodiments, the oven 101 further comprises a fourth stop 203, the fourth stop 203 being removably connected to the oven 104, the fourth stop 203 obstructing a portion of the opening 201. The top edge of the fourth stopper 203 may be higher than the bottom surface of the carrier plate 103 when the carrier plate 103 is located in the heating cavity 202. When the oven door 105 is closed, the oven door 105 may cover the fourth stopper 203.

After the oven door 105 is opened, since the friction between the carrier plate 103 and the third roller 301 is small, the carrier plate 103 and other carrier plates 103 connected above the carrier plate 103 may slip out of the heating cavity 202 uncontrollably to cause damage to a user or the carrier plate 103 and the workpiece 409 may be directly dropped to the ground to be damaged. In the case of providing the fourth stopper 203, the fourth stopper 203 can abut against the loading plate 103, thereby being used for stopping the loading plate 103 and other loading plates 103 connected above the loading plate 103 from sliding out uncontrollably. When the user needs to withdraw the loading plate 103 from the heating cavity 202 or send the loading plate 103 into the heating cavity 202, the user removes the fourth stopper 203 so that the loading plate 103 passes through the opening 201.

Fig. 8 shows a relatively simple detachable connection between the fourth stopper 203 and the furnace body 104. Referring to fig. 8, the oven 101 includes a hook 701, the hook 701 is disposed on a side of the oven body 104 where the opening 201 is disposed, the hook 701 is bent upward, and a second gap 702 is defined between the hook 701 and the oven body 104. With reference to fig. 7 and 8, the fourth stopper 203 is disposed in the second notch 702, and the hook 701 abuts against the bottom of the fourth stopper 203. When the fourth stopper 203 needs to be detached, a user only needs to directly lift the fourth stopper 203 upwards; when the fourth stopper 203 needs to be installed, the user may put the fourth stopper 203 on the hook 701 from above.

Alternatively, in other embodiments, one end of the fourth stopper 203 is rotatably connected to the furnace body 104, and the other end of the fourth stopper 203 can be snapped into the wall surface of the heating cavity 202. When the loading plate 103 needs to be fed into the heating cavity 202 or the loading plate 103 needs to be taken out of the heating cavity 202; one end of the fourth stopper 203 which is caught in the wall surface of the heating chamber 202 may be lifted up, thereby releasing the blocking of the opening 201 by the fourth stopper 203. The fourth stop may be made of a material resistant to high temperatures, for example, graphite.

The oven 101 further comprises a fifth stop 802 and two sixth stops 803, and the fifth stop 802 and the sixth stops 803 are used for limiting the position of the carrier plate 103 located in the heating cavity 202, so as to ensure that the carrier plate 103 and the workpiece 409 are located at a position suitable for heating. Specifically, a fifth stopper 802 and a sixth stopper 803 are both provided in the heating chamber 202, and referring to fig. 3, the fifth stopper 802 is located at an end of the heating chamber 202 away from the opening 201; referring to fig. 10, two sixth stoppers 803 are respectively located at both sides of the heating cavity 202 (the two sixth stoppers 803 are respectively located at the left and right sides, and the sixth stopper 803 at the right side is not specifically shown in fig. 10). As shown in fig. 3, the fifth stopper 802 can abut against the rear end of the carrier plate 103, so as to limit the rear end of the carrier plate 103; as shown in fig. 10, two sixth stoppers 803 may abut against the left and right sides of the carrier plate 103, so as to limit the left and right ends of the carrier plate 103. The fifth stop piece and the sixth stop piece can also be made of high-temperature resistant materials because the fifth stop piece and the sixth stop piece are arranged in the heating cavity; the optional kinds of materials are not specifically listed here as long as the melting point of the material used for the fifth stopper and the sixth stopper is higher than the temperature of the heating chamber when the oven is in operation.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims (10)

1. Feed trolley, its characterized in that includes:

a main body;

the first roller is rotatably connected to the bottom of the main body;

the second roller is rotatably connected to the top of the main body;

the bearing plate is arranged above the main body, the top of the bearing plate is used for bearing a workpiece, the top of the second roller is abutted against the bottom of the bearing plate closest to the main body, and the melting point of the bearing plate is higher than that of the workpiece.

2. The feeding cart of claim 1, wherein said carrying floor is made of graphite or ceramic or metal.

3. The feeding cart of claim 1, wherein said carrying floor is provided in plurality, and a plurality of said carrying floors are distributed along a sliding direction of said carrying floor on said second roller.

4. The feeding cart of claim 1, wherein an axial direction of the second roller is set to a first horizontal direction, and a second horizontal direction is perpendicular to the first horizontal direction;

the feeding cart further comprises first stop members, second stop members and third stop members, the first stop members, the second stop members and the third stop members are arranged at the top of the main body in a protruding mode, the number of the first stop members is two, the two first stop members are arranged at two ends of the main body along the first horizontal direction respectively, the third stop members and the second stop members are arranged at two ends of the main body along the second horizontal direction respectively, and the third stop members and the first stop members are detachably connected;

the third stop part, the second stop part and the first stop part are all arranged on the periphery of the bearing plate, and the top end of the third stop part, the top end of the second stop part and the top end of the first stop part are all higher than the bottom surface of the bearing plate.

5. The feeding cart of claim 1, wherein the second rollers are each provided in plurality in a first horizontal direction and a second horizontal direction, wherein all of the second rollers have the same axial direction, the second rollers have the same axial direction as the first horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction.

6. The feeding cart of claim 1, wherein the main body comprises:

the first roller is arranged at the bottom of the chassis;

the top frame is arranged above the bottom frame, and the second idler wheel is arranged at the top of the top frame;

the lifting device is connected with the bottom frame and the top frame and can drive the top frame to lift relative to the bottom frame.

7. Heating apparatus, characterized in that it comprises:

the feeding cart of any one of claims 1 to 6;

the stove, including furnace body, furnace gate and third gyro wheel, the furnace body has heating chamber and opening, the opening communicate in the heating chamber, the furnace gate can cover the opening is in order to seal the heating chamber, the third gyro wheel install in the diapire in heating chamber, the top of third gyro wheel can with the bottom surface of loading board is supported and is held.

8. The heating apparatus of claim 7 wherein the oven further comprises a fourth stop removably connected to the oven, the fourth stop blocking a portion of the opening, the fourth stop for obstructing the passage of the carrying floor through the opening.

9. The heating apparatus as claimed in claim 8, wherein the oven further comprises a fifth stop and two sixth stops, the fifth stop and the sixth stops are both disposed in the heating cavity, the fifth stop is located at one end of the heating cavity away from the opening, the two sixth stops are respectively located at two sides of the heating cavity, and the fifth stop and the sixth stops are both used for limiting the carrying plate.

10. The heating device according to claim 8, wherein the stove further comprises a hook, the hook is connected to one side of the stove body where the opening is arranged, the hook is bent upwards, a second gap is defined between the hook and the stove body, the fourth stop member is arranged in the second gap, and the hook abuts against the bottom of the fourth stop member;

or one end of the fourth stop piece is rotatably connected with the furnace body, and the other end of the fourth stop piece can be clamped into the wall surface of the heating cavity.

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