Heating lifting device for metal products

Abstract

The utility model belongs to the technical field of heating of metal products, particularly relates to a heating lifting device for metal products, and aims to solve the problems that in an existing traditional heating mode, the metal products need to be manually taken out from a heating box through tools after being heated, high-temperature environment operation has potential safety hazards and is low in efficiency, and some existing heating devices are poor in sealing performance and inconvenient to operate. In order to solve the problems that in the prior art, heat is prone to loss, the effect is affected and energy consumption is increased, according to the scheme, the metal product lifting device comprises a base, a heating box and a lifting table, through the arrangement of the lifting table and a driving assembly, automatic lifting of metal products is achieved, manual direct contact with the high-temperature heating box is avoided, safety risks of operators are reduced, and meanwhile the working efficiency is improved. The sealing assembly seals the inlet of the heating box, heat loss is effectively reduced, the heating effect is improved, the positioning assembly enables the placing table to accurately and stably slide on the lifting table, metal products can be conveniently placed and taken out, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal products heating technical field especially, relates to a heating lifting device for metal products. BACKGROUND

[0002] In the field of metal product processing, heating treatment is a common process step for metal products, such as heat treatment, annealing, tempering, etc.

[0003] The traditional heating method is usually to place the metal products directly in the heating furnace or heating box for heating. After heating is completed, the metal products need to be taken out of the heating box manually using tools. However, manual operation is not only dangerous in high-temperature environment, but also inefficient. In addition, some existing heating devices generally heat in an open environment, which leads to poor sealing of the heating box, easy heat loss, affects the heating effect, and increases energy consumption. Therefore, we propose a heating lifting device for metal products to solve the above problems. SUMMARY

[0004] The utility model aims at solving the problem that the metal products need to be taken out of the heating box manually using tools after heating in the traditional heating method, which is dangerous in high-temperature environment and inefficient, and the sealing of some existing heating devices is poor, which leads to heat loss, affects the effect, and increases energy consumption. Therefore, we propose a heating lifting device for metal products.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A heating lifting device for metal products, comprising a base, a heating box, and a lifting platform, the four side inner walls of the heating box are provided with electric heating plates, the heating box is located above the base, the lifting platform is located between the base and the heating box, both sides of the heating box are fixedly connected with two support frames, the bottom ends of the four support frames are fixedly connected with the top of the base, the top of the lifting platform is slidably provided with a placing table, the bottom of the heating box is provided with an entrance for the placing table to enter, and the size of the lifting platform is greater than that of the entrance, one side of the base is fixedly connected with an extension plate, and the heating lifting device further comprises:

[0007] A driving assembly is arranged on one side of the heating box for driving the lifting platform to lift up and down.

[0008] A sealing assembly is arranged at the opening of the bottom of the heating box for sealing the entrance of the heating box.

[0009] A positioning assembly is arranged on the top of the lifting platform for limiting the position of the sliding placing table on the lifting platform.

[0010] In a possible design, the driving assembly comprises a lead screw, the heating box is fixedly provided with a mounting plate on each side away from each other, the lead screw is rotationally connected with one of the mounting plates, the bottom end of the lead screw is rotationally connected with the base, and the lead screw is threaded through the lifting platform; one of the mounting plates is fixedly connected with a motor at the top, and the output end of the motor is fixedly connected with the top end of the lead screw; the lead screw is driven to rotate by the motor, thereby driving the lifting platform threaded with the lead screw to lift and lower; and the size of the lifting platform is greater than that of the inlet, so that the lifting platform can seal the inlet after the placing table on the lifting platform is lifted into the heating box.

[0011] In a possible design, the driving assembly further comprises a first sliding rod, the bottom end of the first sliding rod is fixedly connected with the top of the base, the top of the first sliding rod is fixedly connected with the bottom of the other mounting plate, and the first sliding rod is threaded through the lifting platform and slidably connected with the lifting platform; the first sliding rod makes the lifting platform more stable when lifting.

[0012] In a possible design, the sealing assembly comprises two limiting frames, the two limiting frames are fixedly arranged on the bottom of the heating box in a symmetrical manner, the top of each of the two limiting frames is provided with a sliding opening, and each of the two sliding openings is slidably connected with a sealing plate; one side of the heating box is rotationally provided with a bidirectional screw rod through a mounting block, the bidirectional screw rod is located on the same side as the lead screw, the bidirectional screw rod is threaded through the two sealing plates, and the two sealing plates are located on the positive thread segment and the reverse thread segment of the bidirectional screw rod, respectively; the other side of the heating box is fixedly connected with a second sliding rod, the second sliding rod is located on the same side as the first sliding rod, and the second sliding rod is threaded through the two sealing plates and slidably connected with the two sealing plates, respectively; the bidirectional screw rod and the two sealing plates on the positive thread segment and the reverse thread segment of the bidirectional screw rod are arranged to seal the inlet at the bottom of the heating box.

[0013] In a possible design, one end of the bidirectional screw rod is fixedly sleeved with a driven gear, one side of the heating box is rotationally provided with a transmission rod, the transmission rod is located on the same side as the bidirectional screw rod, one end of the transmission rod is fixedly sleeved with a driving gear, the driving gear is meshedly connected with the driven gear, the other end of the transmission rod and the outer wall of the lead screw are fixedly sleeved with bevel gears, and the two bevel gears are meshed; the lead screw drives the bevel gears to rotate when rotating, thereby driving the transmission rod to rotate; the driving gear and the driven gear are meshedly connected to drive the bidirectional screw rod to rotate, thereby realizing the opening and closing operations of the two sealing plates when the lifting platform is lifted and lowered.

[0014] In a possible design, the positioning assembly includes two sets of guides fixedly arranged at the top of the lifting table and the extension plate, wherein each set of guides includes two guide rods, the bottom of the placing table is symmetrically provided with two sliding grooves corresponding to the two guide rods, the two sliding grooves are in sliding connection with the corresponding guide rods, the top of the lifting table and the extension plate is provided with a limiting groove, and the two limiting grooves are in communication, the bottom of the placing table is fixedly connected with a limiting block, and the limiting block is located in the corresponding limiting groove and in sliding connection with the corresponding limiting groove. The two sets of guides are arranged to enable the placing table to be pulled out from below the heating box, so as to facilitate placing or taking out the metal products on the heating box, and the limiting block in the limiting groove prevents the placing table from being pulled out too much and separated.

[0015] In a possible design, the top of the lifting table is provided with two positioning holes, a positioning bead is rollingly embedded in each of the two positioning holes, and a compression spring is arranged below the positioning bead in each of the two positioning holes. The top end and the bottom end of each of the two compression springs are in abutment with the corresponding positioning bead and the inner wall of the bottom of the corresponding positioning hole, respectively. The bottom of the placing table is provided with two positioning grooves corresponding to the positioning holes, and the two positioning beads are respectively embedded in the corresponding positioning grooves. The two positioning beads and the two compression springs are arranged to fix the position of the placing table when the placing table is pushed into the heating box from below, so as to prevent sliding and prevent the placing table from entering the heating box.

[0016] In the present application, first, the operator can pull the placing table out from below the heating box along the guide rods, at this time, the limiting block slides in the limiting groove to prevent the placing table from being pulled out too much and separated, then, after the metal products are placed on the placing table, the placing table is pushed back into the heating box along the guide rods, when the positioning groove of the placing table is aligned with the positioning hole of the lifting table, the positioning bead is embedded in the positioning groove under the action of the compression spring, and the placing table is fixed at the accurate position.

[0017] Then, the motor is started, the motor drives the screw rod to rotate, since the screw rod is threaded through the lifting table, according to the screw transmission principle, the lifting table will move up and down along the axial direction of the screw rod; the first sliding rod is threaded through the lifting table and in sliding connection with the lifting table, thereby providing stable guidance for the lifting and lowering of the lifting table, and ensuring that the lifting table stably rises or falls, and the placing table is sent into or out of the heating box.

[0018] When the lead screw rotates and drives the lifting platform to rise, the bevel gear on the lead screw rotates accordingly. By meshing with the bevel gear on the transmission rod, it drives the transmission rod to rotate. The driving gear on the transmission rod meshes with the driven gear on the double-threaded rod, causing the double-threaded rod to rotate. Since the two sealing plates are located on the positive and negative thread sections of the double-threaded rod respectively, the rotation of the double-threaded rod will cause the two sealing plates to slide open to both sides along the sliding opening at the top of the limit frame, so that the placement platform can enter the heating box. At the same time, when the placement platform enters the heating box, the lifting platform will fit against the bottom of the heating box, and because its size is larger than the inlet, it will further seal the inlet.

[0019] When the lifting platform descends, the above transmission process is reversed, and the two sealing plates slide and merge towards the middle to seal the inlet of the heating box and prevent excessive heat loss.

[0020] Beneficial effects: In this utility model, the heating and lifting device for metal products realizes the automatic lifting of metal products by setting up a lifting platform and a drive component, avoiding direct contact between the operator and the high-temperature heating box, and greatly reducing the safety risks to the operator.

[0021] In this utility model, the heating and lifting device for metal products effectively reduces heat loss, improves heating effect, and reduces energy consumption by sealing the inlet of the heating box with a sealing component.

[0022] In this utility model, the heating and lifting device for metal products, through the positioning component, enables the placement platform to slide accurately and stably on the lifting platform, which facilitates the placement and removal of metal products and improves production efficiency.

[0023] In this invention, by setting up a lifting platform and a drive assembly, the automatic lifting of metal products is realized, avoiding direct contact between the operator and the high-temperature heating box, reducing the safety risk to the operator. At the same time, the sealing assembly seals the entrance of the heating box, effectively reducing heat loss and improving the heating effect. The positioning assembly enables the placement platform to slide accurately and stably on the lifting platform, facilitating the placement and removal of metal products and improving production efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a heating and lifting device for metal products proposed in this utility model;

[0025] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of a heating and lifting device for metal products proposed in this utility model.

[0026] Figure 3This is a bottom-view three-dimensional structural diagram of the heating box of a heating lifting device for metal products proposed in this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of a lifting platform for a heating and lifting device for metal products proposed in this utility model.

[0028] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the lifting platform of a heating and lifting device for metal products proposed in this utility model.

[0029] In the diagram: 1. Base; 2. Heating box; 3. Lifting platform; 4. Placement platform; 5. Support frame; 6. First slide rod; 7. Lead screw; 8. Motor; 9. Limiting frame; 10. Sealing plate; 11. Double-ended threaded rod; 12. Driven gear; 13. Transmission rod; 14. Bevel gear; 15. Drive gear; 16. Extension plate; 17. Guide rod; 18. Limiting block; 19. Limiting groove; 20. Positioning bead; 21. Compression spring; 22. Second slide rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Example 1: Refer to Figures 1-5 A lifting device comprises a base 1, a heating chamber 2, and a lifting platform 3. The heating chamber 2 is located above the base 1, and its inner walls are equipped with electric heating plates to evenly heat metal objects placed inside. The lifting platform 3 is located between the base 1 and the heating chamber 2. Two support frames 5 are fixedly connected to both sides of the heating chamber 2, and the bottom ends of the four support frames 5 are fixedly connected to the top of the base 1, ensuring that the heating chamber 2 is stably installed above the base 1. A placement platform 4 is slidably mounted on the top of the lifting platform 3. An entrance is provided at the bottom of the heating chamber 2, through which the placement platform 4 can enter the heating chamber 2, and the size of the lifting platform 3 is larger than the size of the entrance. An extension plate 16 is fixedly connected to one side of the base 1. The device also includes a drive assembly, a sealing assembly, and a positioning assembly.

[0032] A drive assembly is located on one side of the heating chamber 2 and is used to drive the lifting platform 3 to rise and fall. The drive assembly includes a lead screw 7 and a first slide rod 6. Mounting plates are fixedly installed on opposite sides of the heating chamber 2. The lead screw 7 is rotatably connected to one of the mounting plates, and its bottom end is also rotatably connected to the base 1. The lead screw 7 is threaded through the lifting platform 3. A motor 8 is fixedly connected to the top of one of the mounting plates, and the output end of the motor 8 is fixedly connected to the top end of the lead screw 7. The bottom end of the first slide rod 6 is fixedly connected to the top of the base 1, and its top end is fixedly connected to the bottom of the other mounting plate. The first slide rod 6 passes through the lifting platform 3 and is slidably connected to the lifting platform 3.

[0033] When metal products need to be heated, motor 8 is started, which drives lead screw 7 to rotate. Since lead screw 7 is threadedly connected to lifting platform 3, the rotation of lead screw 7 causes lifting platform 3 to move up and down along lead screw 7. Simultaneously, the first slide rod 6 guides and stabilizes lifting platform 3, making its movement smoother during lifting and preventing swaying or tilting, ensuring that placement platform 4 can accurately enter heating chamber 2. Furthermore, after lifting platform 3 rises and places placement platform 4 into heating chamber 2, because the size of lifting platform 3 is larger than the inlet size, lifting platform 3 can initially seal the inlet, reducing heat loss and improving heating efficiency.

[0034] A sealing assembly is located at the bottom of the heating chamber 2 at the opening to further seal the inlet of the heating chamber 2. The sealing assembly includes two limiting brackets 9, two sealing plates 10, a bidirectional threaded rod 11, a driven gear 12, a transmission rod 13, a driving gear 15, and a second slide rod 22. The two limiting brackets 9 are symmetrically fixedly installed at the bottom of the heating chamber 2, and each has a sliding opening at its top, with a sealing plate 10 slidably connected inside each sliding opening. A bidirectional threaded rod 11 is rotatably installed on one side of the heating chamber 2 via a mounting block. The bidirectional threaded rod 11 is located on the same side as the lead screw 7, and the threads of the bidirectional threaded rod 11 pass through the two sealing plates 10. The two sealing plates 10 are located on the positive and negative thread sections of the bidirectional threaded rod 11, respectively. A second slide rod 22 is fixedly connected to the other side of the heating chamber 2. The second slide rod 22 is located on the same side as the first slide rod 6, and the second slide rod 22 passes through the two sealing plates 10 and is slidably connected to them. One end of the bidirectional threaded rod 11 is fixedly fitted with a driven gear 12. A transmission rod 13 is rotatably mounted on one side of the heating box 2. The transmission rod 13 and the bidirectional threaded rod 11 are located on the same side. One end of the transmission rod 13 is fixedly fitted with a driving gear 15. The driving gear 15 meshes with the driven gear 12. The other end of the transmission rod 13 and the outer wall of the screw 7 are both fixedly fitted with bevel gears 14. The two bevel gears 14 mesh with each other.

[0035] As the lead screw 7 rotates and drives the lifting platform 3 to rise, the bevel gear 14 on the lead screw 7 rotates accordingly. This bevel gear 14 meshes with the transmission rod 13, causing the transmission rod 13 to rotate. The driving gear 15 on the transmission rod 13 meshes with the driven gear 12, causing the bidirectional threaded rod 11 to rotate. Since the two sealing plates 10 are located on the positive and negative thread sections of the bidirectional threaded rod 11 respectively, the rotation of the bidirectional threaded rod 11 causes the two sealing plates 10 to move closer together, sealing the inlet at the bottom of the heating chamber 2. When the lifting platform 3 descends, the lead screw 7 rotates in the opposite direction, and through the aforementioned transmission mechanism, the two sealing plates 10 move away from each other, opening the inlet. This sealing method can seal the heating chamber 2 before the placement platform 4 enters it, i.e., when placing or removing metal products, reducing heat leakage, thereby improving energy efficiency and reducing heating costs.

[0036] This application can be used in the field of metal product heating technology, or in other fields applicable to this application.

[0037] Example 2: Reference Figures 4-5 Based on Embodiment 1, an improvement is made: a heating and lifting device for metal products, applied in the field of metal product heating technology. A positioning component is disposed on the top of the lifting platform 3 to limit the position of the sliding placement platform 4 on the lifting platform 3. The positioning component includes two sets of guide members, a limiting block 18, a positioning bead 20, and a compression spring 21. The two sets of guide members are respectively fixedly disposed on the top of the lifting platform 3 and the extension plate 16. Each set of guide members includes two guide rods 17. The bottom of the placement platform 4 is symmetrically provided with sliding grooves corresponding to the two guide rods 17, and the two sliding grooves are slidably connected to the corresponding guide rods 17. Limiting grooves 19 are provided on the top of both the lifting platform 3 and the extension plate 16, and the two limiting grooves 19 are connected. A limiting block 18 is fixedly connected to the bottom of the placement platform 4, and the limiting block 18 is located within the corresponding limiting groove 19 and slidably connected to the corresponding limiting groove 19. The top of the lifting platform 3 has two positioning holes, and positioning beads 20 are rolled into each of the two positioning holes. Compression springs 21 are provided below the positioning beads 20 in each of the two positioning holes. The top and bottom of the two compression springs 21 respectively abut against the corresponding positioning beads 20 and the bottom inner wall of the corresponding positioning hole. The bottom of the placement platform 4 has two positioning grooves corresponding to the positioning holes, and the two positioning beads 20 are respectively embedded in the corresponding positioning grooves.

[0038] When it is necessary to place or remove metal products, the placement platform 4 can be pulled out from under the heating box 2 along the guide rod 17, which is convenient. The limiting block 18 slides in the limiting groove 19 to prevent the placement platform 4 from being pulled out too much and disengaging from the lifting platform 3 or the extension plate 16. When the placement platform 4 is pushed into the bottom of the heating box 2, the positioning bead 20 is embedded in the positioning groove at the bottom of the placement platform 4 under the action of the compression spring 21, fixing the position of the placement platform 4 and preventing it from sliding during the lifting process. This ensures that the placement platform 4 can accurately enter the heating box 2, improving the reliability and stability of the device.

[0039] However, as is well known to those skilled in the art, the working principle and wiring method of motor 8 are commonplace and are all conventional methods or common knowledge. They will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0040] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heating and lifting device for metal products, comprising a base (1), a heating box (2), and a lifting platform (3), wherein electric heating plates are provided on the four inner walls of the heating box (2), characterized in that, The heating box (2) is located above the base (1), the lifting platform (3) is located between the base (1) and the heating box (2), two support frames (5) are fixedly connected to both sides of the heating box (2), the bottom ends of the four support frames (5) are fixedly connected to the top of the base (1), a placement platform (4) is slidably provided on the top of the lifting platform (3), an entrance is provided at the bottom of the heating box (2) for the placement platform (4) to enter, and the size of the lifting platform (3) is larger than the size of the entrance. An extension plate (16) is fixedly connected to one side of the base (1), and the heating box (2) also includes an extension plate (16). The drive assembly is located on one side of the heating box (2) and is used to drive the lifting platform (3) to rise and fall. A sealing assembly is provided at the bottom of the heating chamber (2) at the opening, for sealing the inlet of the heating chamber (2); A positioning component is provided on the top of the lifting platform (3) to limit the position of the sliding placement platform (4) on the lifting platform (3).

2. A heating and lifting device for metal products according to claim 1, characterized in that, The drive assembly includes a lead screw (7). Mounting plates are fixedly installed on the opposite sides of the heating box (2). The lead screw (7) is rotatably connected to one of the mounting plates. The bottom end of the lead screw (7) is rotatably connected to the base (1). The lead screw (7) is threaded through the lifting platform (3). A motor (8) is fixedly connected to the top of one of the mounting plates. The output end of the motor (8) is fixedly connected to the top end of the lead screw (7).

3. A heating and lifting device for metal products according to claim 2, characterized in that, The drive assembly also includes a first slide rod (6), the bottom end of which is fixedly connected to the top of the base (1), the top of which is fixedly connected to the bottom of another mounting plate, and the first slide rod (6) passes through the lifting platform (3) and is slidably connected to the lifting platform (3).

4. A heating and lifting device for metal products according to claim 3, characterized in that, The sealing assembly includes two limiting frames (9), which are symmetrically fixed at the bottom of the heating box (2). Each of the two limiting frames (9) has a sliding opening at its top, and a sealing plate (10) is slidably connected in each of the two sliding openings. A bidirectional threaded rod (11) is rotatably provided on one side of the heating box (2) through an mounting block. The bidirectional threaded rod (11) is located on the same side as the lead screw (7). The bidirectional threaded rod (11) is threaded through the two sealing plates (10). The two sealing plates (10) are located on the positive and negative thread sections of the bidirectional threaded rod (11), respectively. A second slide rod (22) is fixedly connected to the other side of the heating box (2). The second slide rod (22) is located on the same side as the first slide rod (6). The second slide rod (22) passes through the two sealing plates (10) and is slidably connected to the two sealing plates (10).

5. A heating and lifting device for metal products according to claim 4, characterized in that, One end of the bidirectional threaded rod (11) is fixedly fitted with a driven gear (12). A transmission rod (13) is rotatably arranged on one side of the heating box (2). The transmission rod (13) and the bidirectional threaded rod (11) are located on the same side. One end of the transmission rod (13) is fixedly fitted with a driving gear (15). The driving gear (15) meshes with the driven gear (12). The other end of the transmission rod (13) and the outer wall of the screw (7) are both fixedly fitted with bevel gears (14). The two bevel gears (14) mesh with each other.

6. A heating and lifting device for metal products according to claim 1, characterized in that, The positioning component includes two sets of guide members, which are fixedly installed on the top of the lifting platform (3) and the extension plate (16), respectively. Each set of guide members includes two guide rods (17). The bottom of the placement platform (4) is symmetrically provided with sliding grooves corresponding to the two guide rods (17). The two sliding grooves are slidably connected to the corresponding guide rods (17). The top of the lifting platform (3) and the extension plate (16) are provided with limit grooves (19), and the two limit grooves (19) are connected. The bottom of the placement platform (4) is fixedly connected with a limit block (18). The limit block (18) is located in the corresponding limit groove (19) and is slidably connected to the corresponding limit groove (19).

7. A heating and lifting device for metal products according to claim 1, characterized in that, The top of the lifting platform (3) has two positioning holes, and a positioning bead (20) is rolled into each of the two positioning holes. A compression spring (21) is provided below the positioning bead (20) in each of the two positioning holes. The top and bottom of the two compression springs (21) abut against the corresponding positioning bead (20) and the inner wall of the bottom of the corresponding positioning hole, respectively. The bottom of the placement platform (4) has two positioning grooves corresponding to the positioning holes, and the two positioning beads (20) are respectively embedded in the corresponding positioning grooves.

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