A mesh belt furnace for increasing the high-strength torque of screws

Abstract

This utility model discloses a mesh belt furnace for increasing the high-strength torque of screws, comprising a furnace body, a conveyor mesh belt, a discharge hopper, and a recycling bin. A pair of recycling bins are arranged side-by-side, with a translational structure beneath them. The translational structure includes a pair of ball bearing seats and a single lead screw passing through both ball bearing seats, with a motor connected to the end of the lead screw. Traveling wheels are installed at the four corners of the bottom surface of each recycling bin, and a pair of track bars are provided on both sides of the lead screw to limit the rolling direction of the traveling wheels. An insert block is fixed at the center of the bottom surface of each recycling bin, and a slot is installed on the ball bearing seat to engage with the insert block. This utility model, by setting up two parallel recycling bins and a translational structure, eliminates the need to stop the machine during the entire replacement process, solving the problems of material waste, collection difficulties, and low efficiency caused by screws continuously falling to the ground during recycling bin replacement. Operators only need to control the motor or apply slight force to achieve smooth switching of the recycling bins, significantly reducing labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of screw production and processing technology, and in particular to a mesh belt furnace for increasing the high-strength torque of screws. Background Technology

[0002] Screws are often heat-treated in mesh belt furnaces during the production process. Mesh belt furnaces adopt a continuous production method, allowing screws to continuously pass through the furnace chamber for heat treatment. This improves the surface hardness and wear resistance of the screws, maintains sufficient toughness in the core, eliminates residual stress inside the screws, improves the microstructure, increases torque, and makes the screws less prone to breakage when bearing loads.

[0003] In the existing technology, a screw recycling bin is usually placed at the finished product outlet of a traditional mesh belt furnace. Since the mesh belt furnace continuously conveys bolts during operation, when the recycling bin is full and needs to be replaced, the bolts keep falling and easily scattering on the ground. They need to be collected manually afterward, which is inefficient. In addition, the recycling bin full of bolts is heavy and difficult to move and replace.

[0004] To address this issue, we propose a mesh belt furnace for increasing the high-strength torque of screws. Utility Model Content

[0005] The purpose of this invention is to provide a mesh belt furnace for increasing the high-strength torque of screws, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A mesh belt furnace for increasing the high-strength torque of screws includes a furnace body, a conveyor mesh belt, a discharge hopper, and a recycling bin. A pair of recycling bins are arranged side-by-side, and a translational structure is provided under the pair of recycling bins. The translational structure includes a pair of ball bearing seats and a single lead screw passing through both ball bearing seats, with a motor connected to the end of the lead screw. Traveling wheels are installed at the four corners of the bottom surface of each recycling bin, and a pair of track bars are provided on both sides of the lead screw to limit the rolling direction of the traveling wheels. A plug is fixed at the center of the bottom surface of each recycling bin, and a groove is installed on the ball bearing seat to engage with the plug.

[0008] In a further embodiment, the lower surface of the tray is provided with a slide cylinder, and the upper surface of the ball bearing seat is provided with a vertical rod. The slide cylinder and the vertical rod are slidably connected. A spring is sleeved on the slide cylinder. A pressure rod is connected to the side of the tray away from the furnace body.

[0009] In a further embodiment, the cross-sectional structure of the inner groove of the slide tube and the cross-sectional structure of the upright are both non-circular.

[0010] In a further embodiment, the end of the pressure bar away from the tray is inclined downward, and the length of the pressure bar is less than the distance between the travel wheel and the center surface of the recycling bin.

[0011] In a further embodiment, the width of the discharge port of the discharge hopper is smaller than the length of the recycling bin.

[0012] In a further embodiment, a pair of limiting frames are also provided on both sides of the recycling bin. The two ends of the limiting frames are inclined outward to form a tapered opening, and several rollers are rotatably installed on the side of the limiting frames close to the recycling bin.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention, by setting up two parallel recycling bins and a sliding structure, can automatically or quickly move a full recycling bin out of the receiving position, while simultaneously moving the other empty bin precisely under the discharge hopper to receive the falling material. The entire replacement process does not require machine downtime, solving the problems of material waste, collection difficulties, and low efficiency caused by screws continuously falling to the ground when replacing recycling bins. Furthermore, the sliding structure is driven by a motor-driven screw that moves the ball bearing seat, and the recycling bins are equipped with travel wheels at the bottom and run on rails, greatly reducing the moving resistance of the fully loaded recycling bins. Operators only need to control the motor or apply slight force to achieve smooth switching of recycling bins, significantly reducing labor intensity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of the recycling bin and the translational structure of this utility model;

[0017] Figure 3 This is a bottom view of the installation structure of the recycling bin and the translational structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the installation structure of the recycling bin, the translation structure, and the limiting frame of this utility model;

[0019] Figure 5 This is a partial cross-sectional view of the connection between the ball bearing seat and the bottom of the recycling bin of this utility model.

[0020] In the diagram: 1. Furnace body; 2. Conveyor belt; 3. Discharge hopper; 4. Recycling box; 5. Ball bearing seat; 6. Lead screw; 7. Motor; 8. Track bar; 9. Traveling wheel; 10. Insert block; 11. Support groove; 12. Slide cylinder; 13. Upright pole; 14. Spring; 15. Pressure rod; 16. Limiting frame; 17. Drum. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 A mesh belt furnace for increasing the high-strength torque of screws includes a furnace body 1, a conveyor mesh belt 2, a discharge hopper 3, and a recovery box 4. Specifically, the conveyor mesh belt 2 runs through the interior of the furnace body 1 and is used to transport screws. The furnace body 1 is equipped with a transmission system, a heating system, an atmosphere control system, and a smoke exhaust system to realize the heat treatment processing of materials passing through the furnace body 1. The discharge hopper 3 is installed at an incline at the discharge end of the furnace body 1, and the recovery box 4 is located below the discharge hopper 3. The above is the existing technology, and the specific principle will not be elaborated.

[0025] Please see Figure 2-3A pair of recycling bins 4 are arranged side by side along the width of the furnace body 1. Specifically, the width of the discharge port of the discharge hopper 3 is smaller than the length of the recycling bin 4, ensuring that during switching or when a single recycling bin 4 is receiving material, all the falling screws can fall into the recycling bin 4. The two recycling bins 4 are installed together on a sliding structure, which includes a pair of ball bearing seats 5 fixed on the base, and the same lead screw 6 passing through the two ball bearing seats 5. One end of the lead screw 6 is connected to a motor 7 (which can rotate in both directions). The lead screw 6 is mounted on the ground through a bearing seat. A pair of parallel rails 8 are arranged on both sides of the lead screw 6. The bottom surface of each recycling bin 4 has four... Each corner is equipped with a traveling wheel 9, which is placed on a track bar 8. The track bar 8 restricts the rolling direction of the traveling wheel 9, ensuring that the recycling box 4 can only move in a straight line along the axis of the lead screw 6 (i.e., the direction of the track bar 8). Each ball bearing seat 5 has a groove 11 installed on its upper surface. When the recycling box 4 is moved to a predetermined position (material receiving position or standby position), the bottom insert 10 is inserted into the groove 11 on the corresponding ball bearing seat 5, realizing a reliable connection and precise positioning between the box and the translation structure. When the motor 7 drives the lead screw 6 to rotate, it drives the recycling box 4 locked to it to move synchronously along the track bar 8 through the ball bearing seat 5.

[0026] For further information, please refer to [link / reference]. Figure 5 To facilitate quick disassembly of the recycling bin 4 and the ball bearing seat 5, a slide cylinder 12 is provided on the lower surface of the recycling bin 4's tray 11, and a vertical rod 13 is provided on the upper surface of the ball bearing seat 5. The slide cylinder 12 is fitted onto the vertical rod 13 and can slide up and down along it. Preferably, the internal cross-section of the slide cylinder 12 and the cross-section of the vertical rod 13 are both non-circular, such as square, rectangular, or circular with keyways, to prevent relative rotation between them. A spring 14 is fitted over the slide cylinder 12. The top end of the spring 14 is fixed to the bottom surface of the tray 11, and the bottom end of the spring 14 is fixed to the upper surface of the ball bearing seat 5. In its natural state, the elastic force of the spring 14 keeps the tray 11 in the highest position, while the travel wheel... When the 9 is on the track bar 8, the height of the recycling box 4 causes the slot 11 and the insert 10 to have a section of overlapping length, so that the insert 10 can be inserted into the slot 11. A pressure rod 15 is connected to the side of the slot 11 away from the furnace body 1. The pressure rod 15 is inclined downward and its length is designed to be less than the distance from the travel wheel 9 to the center surface of the recycling box 4, so as to ensure that the pressure rod 15 will not interfere with the travel wheel 9 when it is pressed down. When the recycling box 4 needs to be completely moved away, the pressure rod 15 is pressed down to overcome the elastic force of the spring 14, so that the slot 11 drives the slide cylinder 12 to move down along the upright 13, thereby reducing the height of the slot 11 and allowing the insert 10 to be dislodged from the slot 11. The recycling box 4 can then be pushed away freely.

[0027] Please see Figure 4A pair of limiting frames 16 are also installed on both sides of the moving path of the recycling bin 4. The two ends of the limiting frame 16 are inclined outward to form a gradually narrowing opening, which facilitates the smooth introduction and exit of the recycling bin 4 at the beginning and end of the movement, and realizes rapid positioning and guidance. Several rollers 17 are rotatably installed on the side of the limiting frame 16 near the side wall of the recycling bin 4. The axis of the rollers 17 is parallel to the vertical direction. When the recycling bin 4 moves along the track, its side contacts the rollers 17, converting sliding friction into rolling friction, effectively reducing moving resistance and preventing the bin from running off course or tipping over.

[0028] Working process: The screws are laid flat at the loading position of the conveyor belt 2 and move with the conveyor belt 2 through the furnace body 1 for heat treatment until they are removed from the furnace body 1 and reach the unloading position. The screws fall onto the discharge hopper 3 and are guided by the discharge hopper 3 into the recycling box 4. Initially, a recycling box 4 is located directly below the discharge hopper 3 (receiving position), and its insert 10 is inserted into the corresponding slot 11. When this box is full and needs to be replaced, the start motor 7 drives the lead screw 6 to rotate, which drives the two ball bearing seats 5 and the connected recycling box 4 to move synchronously along the track. The full box is moved out of the receiving position, and at the same time the empty box is moved below the receiving position. The operator presses down the pressure rod 15 corresponding to the full box, so that the slot 11 is lowered and the insert 10 is dislodged. The full box can then be easily pushed away along the limit frame 16 for replacement. After the empty box is replenished, it is placed in the standby position for the next switch.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mesh belt furnace for increasing the high strength torque of screws, comprising a furnace body (1), a conveying mesh belt (2), a discharge hopper (3) and a recovery tank (4), characterized in that: The recycling bins (4) are arranged side by side. The pair of recycling bins (4) are provided with a translation structure. The translation structure includes a pair of ball bearing seats (5) and a lead screw (6) that passes through the two ball bearing seats (5). The end of the lead screw (6) is connected to a motor (7). The bottom of the recycling bin (4) is equipped with four traveling wheels (9). The two sides of the lead screw (6) are provided with a pair of track bars (8) for limiting the rolling direction of the traveling wheels (9). The bottom center of the recycling bin (4) is fixed with a plug (10). The ball bearing seats (5) are equipped with a slot (11) that engages with the plug (10).

2. A mesh belt furnace for increasing the high strength torque of a screw as claimed in claim 1, wherein: The lower surface of the tray (11) is provided with a slide cylinder (12), and the upper surface of the ball bearing seat (5) is provided with a vertical rod (13). The slide cylinder (12) and the vertical rod (13) are slidably connected. A spring (14) is sleeved on the slide cylinder (12). A pressure rod (15) is connected to the side of the tray (11) away from the furnace body (1).

3. A mesh belt furnace for increasing the high strength torque of a screw as claimed in claim 2, wherein: The cross-section of the inner groove of the slide tube (12) and the cross-section of the upright (13) are both non-circular.

4. A mesh belt furnace for increasing the high strength torque of a screw as claimed in claim 2, wherein: The end of the pressure rod (15) away from the tray (11) is inclined downward, and the length of the pressure rod (15) is less than the distance between the travel wheel (9) and the center plane of the recycling box (4).

5. A mesh belt furnace for increasing the high strength torque of a screw as claimed in claim 1, wherein: The width of the discharge port of the discharge hopper (3) is smaller than the length of the recycling box (4).

6. A mesh belt furnace for increasing the high strength torque of a screw as claimed in claim 1, wherein: A pair of limiting frames (16) are also installed on both sides of the recycling bin (4). The two ends of the limiting frame (16) are inclined outward to form a gradually narrowing opening, and several rollers (17) are rotatably installed on the side of the limiting frame (16) near the recycling bin (4).

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