Tray fixed-point turnover mechanism and annular furnace feeding and discharging device

Abstract

In order to overcome the defects in the prior art, the utility model provides a charging tray fixed-point turnover mechanism and an annular furnace feeding and discharging device, the charging tray fixed-point turnover mechanism comprises a turnover table, the top of the turnover table is a table top for placing a charging tray, one side of the turnover table is an arc-shaped toothed belt, and the toothed belt is arranged in the direction of a vertical interface of the charging tray. And the gear is meshed with a driving gear of the driving device. An arc-shaped long through hole with the same radian as the toothed belt is formed in the side wall of the overturning table, anti-dazzling screens are arranged at the top and the bottom of the arc-shaped long through hole, and the photoelectric sensor is arranged at the anti-dazzling screen at the top or the bottom when the table top of the overturning table receives the material tray. The overturning table is rotationally connected with the fixing support or the device table top through a rotary table rotating shaft at the arc center position of the toothed belt, and the rotary table rotating shaft is arranged in the horizontal axial direction of the material disc. According to the utility model, on the basis of not obviously changing the equipment structure of the existing heat treatment production line, the automatic overturning of the charging tray can be realized, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology, specifically to a material tray tilting mechanism and a ring furnace feeding and discharging device. Background Technology

[0002] Using a ring furnace for heat treatment of steel balls is a highly efficient method. After heat treatment, the steel balls typically need to be transferred to a quenching tank via a pallet for quenching. Existing equipment usually involves transporting the pallet to the quenching tank using a conveyor, after which the steel balls need to be manually removed and placed into the tank. This method is inefficient. Adding a robotic arm to flip the pallet would require significant factory space, and existing ring furnace heat treatment production lines generally employ a compact design, making it difficult to install additional large equipment. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a tray-fixed-point flipping mechanism, comprising: a flipping table, the top of which is a platform for placing the tray, and one side of which is an arc-shaped toothed belt. The toothed belt is arranged along the vertical interface direction of the tray and meshes with the drive gear of the drive device. The side wall of the flipping table has an arc-shaped elongated through hole with the same curvature as the toothed belt near its position. Light-shielding plates are provided at the top and bottom of the arc-shaped through hole. A photoelectric sensor is positioned at the top or bottom light-shielding plate when the tray is in the flipping table's receiving position. The signal output terminal of the photoelectric sensor is connected to the drive device via a control system. The flipping table is rotatably connected to a fixed bracket or device platform at the arc center of the toothed belt via a turntable shaft, the turntable shaft being arranged along the horizontal axis of the tray.

[0004] Furthermore, the rotating table surface is provided with a protective frame that matches the material tray.

[0005] Furthermore, the protective frame is a bracket-type structure, with an opening at the inlet and outlet of the material tray. A folded support column matching the top corner of the material tray is provided on the opposite side of the opening, and a protective column is provided along the horizontal axis of the material tray at the opening. The spacing between the folded support column and the protective column meets the requirements for lateral material discharge from the material tray.

[0006] Furthermore, the tray has a plate-shaped structure, and the top of the tray is provided with several rows of steel ball grooves that match the steel balls. Along the horizontal short axis of the tray, there are several steel ball channel grooves that match the steel balls, and the steel ball channel grooves are connected to adjacent steel ball grooves.

[0007] Furthermore, the depth of the steel ball channel groove is less than the depth of the steel ball groove.

[0008] Furthermore, the steel ball grooves arranged along the horizontal long axis of the tray have the same size, and the depth of the steel ball grooves arranged along the horizontal short axis of the tray increases from one side to the other.

[0009] Furthermore, each of the arc-shaped elongated through holes is provided with a light-shielding plate at the location where a fixed point is required.

[0010] Furthermore, the surface of the turning table where the material tray is placed is provided with push plate movement holes.

[0011] The tilting table includes a pusher mechanism, which includes a second drive device that drives the pusher plate to reciprocate along the pusher plate movement hole. The pusher mechanism extends outside the pusher plate movement hole and pushes the material tray to move.

[0012] Furthermore, the second driving device includes a drive motor, the drive end of which is fixedly connected to a horizontal screw. The horizontal screw is arranged along the horizontal long axis of the material tray and is rotatably connected to the tilting table through a bearing. A displacement block is screwed onto the horizontal screw, and the top of the displacement block is fixed to the push plate.

[0013] In addition, this utility model also provides a ring furnace feeding and discharging device, including a transport mechanism that drives the material tray to move back and forth between the ring furnace and the quenching tank. The transport mechanism is provided with a material tray fixed-point flipping mechanism near the quenching tank. The material tray fixed-point flipping mechanism adopts the material tray fixed-point flipping mechanism as described above.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model can achieve automatic flipping of the material tray without significantly changing the equipment structure of the existing heat treatment production line, thereby improving production efficiency.

[0016] 2. This utility model can be rotated at fixed points as needed, so that the steel balls can fall into the quenching tank in rows, which has good controllability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the tray tilting mechanism of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the protective frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the material tray of this utility model;

[0020] Figure 4 This utility model Figure 3 A schematic diagram of the cross-section along direction A;

[0021] Figure 5 This is a schematic diagram of the structure of the ring furnace feeding and discharging device of this utility model;

[0022] In the picture:

[0023] 1. Transportation mechanism; 2. Tray tilting mechanism; 201. Protective frame; 2011. Folded support column; 202. Tilting table; 2021. Toothed belt; 2022. Arc-shaped long through hole; 2023. Push plate movement hole; 203. Drive device; 2031. Drive gear; 204. Light shield; 205. Photoelectric sensor; 206. Push plate mechanism; 2061. Drive motor; 2062. Push plate; 2063. Displacement block; 2064. Horizontal screw; 207. Turntable shaft; 208. First drive device; 209. First screw; 210. Gate connecting block; 3. Tray; 301. Steel ball groove; 302. Steel ball channel groove. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] Please note that the terms "above", "below", "left", "right", "top", "bottom", "end", "full", etc. used in this utility model to describe positional relationships do not represent the absolute positional relationship between modules / components / assemblies / parts / components, but rather the relative positional relationship between modules / components / assemblies / parts / components.

[0026] Example 1

[0027] A tray tilting mechanism, such as Figure 1 As shown, the device includes: a tilting table 202, the top of which is a platform for placing the material tray 3, and one side of which is an arc-shaped toothed belt 2021. The toothed belt 2021 is arranged along the vertical interface direction of the material tray 3 and meshes with the drive gear 2031 of the drive device 203. The side wall of the tilting table 202 has an arc-shaped elongated through hole 2022 with the same curvature as the toothed belt 2021 near the position of the toothed belt 2021. The arc-shaped elongated through hole 2022 has light-shielding plates 204 at its top and bottom. A photoelectric sensor 205 is positioned at the top or bottom of the light-shielding plate 204 when the platform of the tilting table 202 is in the position of receiving the material tray 3. The signal output terminal of the photoelectric sensor 205 is connected to the drive device 203 via a control system. The tilting table 202 is rotatably connected to a fixed bracket or device platform at the arc center position of the toothed belt 2021 via a turntable shaft 207, which is arranged along the horizontal axis of the material tray 3.

[0028] The device operates as follows: the tray 3 is conveyed by the conveying mechanism to the top surface of the tilting table 202, and then locked by the locking mechanism. The locking mechanism can be a hook on the original equipment table or other mechanisms that can fix the tray 3 to the top surface of the tilting table 202. Then, the drive device 203 is activated, driving the toothed belt 2021 through the drive gear 2031 to rotate the tilting table 202 along the turntable shaft 207, thereby causing the top surface of the tilting table 202 to tilt along the turntable shaft 207, and simultaneously causing the tray 3 to tilt, thus pouring the steel balls in the tray 3 into the quenching tank. The drive device 203 can be a conventional motor, a stepper motor, or a servo motor, as needed.

[0029] Meanwhile, when the tilting table 202 starts to rotate, the photoelectric sensor 205 detects that the light-blocking plate 204 at the starting position leaves the target position. When it reaches the end position of the tilting, the photoelectric sensor 205 detects the light-blocking plate 204 at the end position. At this time, the control system controls the drive device 203 to stop rotating and waits for a preset time before rotating back, thereby driving the tilting table 202 to rotate back. When the photoelectric sensor 205 detects the light-blocking plate 204 at the starting position again, the rotation stops and waits for the next tilting command.

[0030] Depending on the requirements, the photoelectric sensor 205 can be a grating sensor or a laser rangefinder, and the control system can be a PLC control system or a computer-based control system.

[0031] Example 2

[0032] Based on the tray tilting mechanism of Embodiment 1, such as Figure 2 As shown, the rotating table 202 has a protective frame 201 that matches the material tray 3 on its surface.

[0033] The protective frame 201 is a bracket-type structure. The protective frame 201 is open at the inlet and outlet positions of the material tray 3. On the opposite side of the open, there is a folded support column 2011 that matches the top corner of the material tray 3. A protective column is provided along the horizontal axis of the material tray 3 at the open position. The distance between the folded support column 2011 and the protective column meets the lateral discharge requirements of the material tray 3.

[0034] The added protective frame 201 can limit and assist in fixing the material tray 3, so as to prevent the material tray 3 from deflecting under its own weight and the rolling impact of the steel ball when the tilting table 202 drives the material tray 3 to tilt.

[0035] Example 3

[0036] Based on the tray tilting mechanism of Embodiment 1, such as Figure 3As shown, the material tray 3 has a plate-shaped structure. The top of the material tray 3 is provided with several rows of steel ball grooves 301 that match the steel balls. Along the horizontal short axis of the material tray 3, there are several steel ball channel grooves 302 that match the steel balls. The steel ball channel grooves 302 are connected to adjacent steel ball grooves 301.

[0037] Traditional material trays 3 typically only have steel ball grooves 301 that match the steel balls. This invention, to facilitate the rolling of steel balls when the tray 3 is rotated by the tilting table 202, adds steel ball channel grooves 302 along the preset rolling direction of the steel balls, allowing them to slide along a predetermined trajectory during rolling. This avoids problems such as collisions or difficulty in sliding.

[0038] Example 4

[0039] Based on the tray tilting mechanism of Embodiment 1, such as Figure 3 and Figure 4 As shown, the depth of the steel ball channel groove 302 is less than the depth of the steel ball groove 301.

[0040] The steel ball grooves 301 arranged along the horizontal long axis of the material tray 3 have the same size, and the groove depth of the steel ball grooves 301 arranged along the horizontal short axis of the material tray 3 increases from one side to the other.

[0041] By setting the depth of the steel ball groove 301 to increase sequentially, the steel balls can roll down row by row when the turning table 202 drives the material tray 3 to turn, thus making the sliding process of the steel balls orderly, facilitating counting and inspection, and also allowing for targeted quenching treatment after each batch of steel balls slides down. The depth of the steel ball channel groove 302 being less than the depth of the steel ball groove 301 can prevent the steel balls from sliding down prematurely, thus avoiding the problem of disordered sliding order.

[0042] According to one of the above embodiments, each of the arc-shaped elongated through-holes 2022 is provided with a light-shielding plate 204 at the required fixed position. This arrangement allows the present invention to detect multiple preset pause points, so as to allow sufficient time for the steel ball to slide down.

[0043] Example 5

[0044] Based on the tray tilting mechanism of Embodiment 1, such as Figure 1 and Figure 5 As shown, the rotating table 202 has a push plate movement hole 2023 on the table surface where the material tray 3 is placed.

[0045] The tilting table 202 includes a pusher mechanism 206, which includes a second driving device. The second driving device drives the pusher 2062 to reciprocate along the pusher movement hole 2023. The pusher mechanism 206 extends outside the pusher movement hole 2023 and pushes the material tray 3 to move.

[0046] The second driving device includes a drive motor 2061, the driving end of which is fixedly connected to a horizontal screw 2064. The horizontal screw 2064 is arranged along the horizontal long axis of the material tray 3 and is rotatably connected to the tilting table 202 through a bearing. A displacement block 2063 is screwed onto the horizontal screw 2064, and the top of the displacement block 2063 is fixed to the push plate 2062.

[0047] In existing technology, after the material tray 3 is unloaded, it still needs to be manually pushed back to the transport mechanism to return it to the annular furnace. This invention, through the addition of a pusher mechanism 206, can automatically push the material tray 3 back to the transport mechanism. Specifically, when the material tray 3 needs to be pushed back, the drive motor 2061 starts rotating forward, driving the horizontal screw 2064 to rotate forward, thereby causing the displacement block 2063 to move relative to the horizontal screw 2064 as follows: Figure 5 The movement from left to right drives the pusher plate 2062 to push the tray 3 back to the right along the pusher plate movement hole 2023. After the tray 3 is pushed back to the right, the drive motor 2061 reverses, thereby driving the pusher plate 2062 back to its original position to avoid blocking the next tray 3 from entering the turnover table 202.

[0048] Example 6

[0049] A feeding and discharging device for a ring furnace, such as Figure 5 As shown, the system includes a transport mechanism 1 that drives the material tray 3 to move back and forth between the annular furnace and the quenching tank. The transport mechanism 1 is provided with a material tray fixed-point flipping mechanism 2 near the quenching tank. The material tray fixed-point flipping mechanism 2 adopts the material tray fixed-point flipping mechanism described above.

[0050] The ring furnace feeding and discharging device of this invention can transport a tray 3 containing heat-treated steel balls from the ring furnace to a position near the quenching tank via a transport mechanism 1. Then, the tray 3 is flipped by the tray-turning mechanism 2, allowing the heat-treated steel balls to fall orderly into the quenching tank for quenching. The transport mechanism 1 then transports the tray 3 back to the ring furnace for the next round of feeding and heat treatment of steel balls.

[0051] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A tray indexing and flipping mechanism, characterized by, The application relates to a turnover table (202) which comprises: a table top for placing a tray (3) and an arc-shaped tooth belt (2021) on one side, the tooth belt (2021) is arranged along the vertical interface direction of the tray (3) and is tooth-connected with a driving gear (2031) of a driving device (203); an arc-shaped long through hole (2022) with the same arc as the tooth belt (2021) is arranged on the side wall of the turnover table (202) near the tooth belt (2021); a light-shielding sheet (204) is arranged on the top and the bottom of the arc-shaped long through hole (2022); a photoelectric sensor (205) is arranged at the position of the top or bottom light-shielding sheet (204) when the tray (3) is received by the table top of the turnover table (202); the signal output end of the photoelectric sensor (205) is signal-connected with the driving device (203) through a control system; the turnover table (202) is rotationally connected with a fixed support or a device table top through a rotary table rotary shaft (207) at the arc center position of the tooth belt (2021), and the rotary table rotary shaft (207) is arranged along the horizontal axis direction of the tray (3). The table top of the turnover table (202) is provided with a protection frame (201) matched with the tray (3).

2. The tray point flip mechanism of claim 1, wherein, The protection frame (201) is a support type structure, the protection frame (201) is open at the inlet and outlet positions of the tray (3), a folding support column (2011) matched with the top corner of the tray (3) is arranged at the opposite side of the opening, and a protection column is arranged along the horizontal axis direction of the tray (3) at the opening position; the distance between the folding support column (2011) and the protection column meets the lateral discharging requirement of the tray (3).

3. The tray point flip mechanism of claim 2, wherein, The tray (3) is a plate type structure, a plurality of rows of steel ball grooves (301) matched with steel balls are arranged on the top of the tray (3), a plurality of steel ball channel grooves (302) matched with steel balls are arranged along the horizontal short axis direction of the tray (3), and the steel ball channel grooves (302) are communicated with adjacent steel ball grooves (301).

4. The tray point flip mechanism of claim 1, wherein, The depth of the steel ball channel groove (302) is smaller than the depth of the steel ball groove (301).

5. The tray point flip mechanism of claim 4, wherein, The steel ball grooves (301) arranged along the horizontal long axis direction of the tray (3) have the same size, and the steel ball grooves (301) arranged along the horizontal short axis direction of the tray (3) have groove depths increasing from one side to the other side.

6. The tray indexing mechanism of claim 4 wherein, An light-shielding sheet (204) is arranged at the position requiring positioning of the arc-shaped long through hole (2022).

7. The tray point flip mechanism of claim 1, wherein, A push plate movement hole (2023) is arranged on the table top of the turnover table (202) for placing the tray (3); 8. The tray point flip mechanism of claim 1, wherein, The turnover table (202) comprises a push plate mechanism (206), the push plate mechanism (206) comprises a second driving device, the second driving device drives a push plate (2062) to move back and forth along the push plate movement hole (2023); the push plate mechanism (206) extends to the outside of the push plate movement hole (2023) and pushes the tray (3) to move. ​ 9. The tray point flip mechanism of claim 8, wherein, The second driving device comprises a driving motor (2061), a driving end of the driving motor (2061) is fixedly connected with a horizontal screw rod (2064), the horizontal screw rod (2064) is arranged along a horizontal long axis direction of the material disc (3) and is rotatably connected with the overturning table (202) through a bearing, a displacement block (2063) is screwed on the horizontal screw rod (2064), and the displacement block (2063) is fixedly connected with a push plate (2062) at the top.

10. A device for feeding and discharging a circular furnace, characterized in that, The second driving device comprises a driving motor (2061), a driving end of the driving motor (2061) is fixedly connected with a horizontal screw rod (2064), the horizontal screw rod (2064) is arranged along a horizontal long axis direction of the material disc (3) and is rotatably connected with the overturning table (202) through a bearing, a displacement block (2063) is screwed on the horizontal screw rod (2064), and the displacement block (2063) is fixedly connected with a push plate (2062) at the top.

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