Automatic mesh belt tensioning device of mesh belt furnace

Abstract

The utility model relates to the technical field of mesh belt tensioning, in particular to an automatic mesh belt tensioning device of a mesh belt furnace. Comprising a mesh belt, a driving assembly for driving the mesh belt to convey, and a tensioning assembly for tensioning the mesh belt, the tensioning assembly comprises a tensioning roller, a driving module for driving the whole tensioning roller to linearly move in the direction opposite to the conveying direction of the mesh belt, and a detection piece for detecting whether the mesh belt becomes loose or not; the height of the detection piece is the detection height, and when the mesh belt is higher than the detection height, the tensioning assembly does not act; and when the mesh belt is at the detection height, the tensioning assembly acts. The tensioning assembly is mounted below an outlet of the furnace body; and the roller surface of the tensioning roller is in contact with the outer ring belt surface of the mesh belt. The mesh belt tensioning device can achieve automatic tensioning of the mesh belt to prevent the mesh belt from slipping, and is high in practicability and automation degree.

Description

Technical Field

[0001] The utility model relates to the technical field of mesh belt tensioning, in particular to an automatic mesh belt tensioning device for a mesh belt furnace. Background Art

[0002] Mesh belt furnaces are sintering furnaces where parts are continuously transported through a mesh belt protected by a muffle. They are primarily used for sintering powder metallurgy products, reducing metal powders, and pre-firing, firing, or heat treating electronic products in a protective atmosphere or air.

[0003] Existing mesh belt furnaces lack automatic mesh belt tensioning devices. Due to the effects of tension and temperature during long-term operation, the mesh belt can become loose and lengthen. Without a tensioning device, the mesh belt can crawl and vibrate, and is prone to dragging and scratching. An automatic mesh belt tensioning device for mesh belt furnaces is proposed to address these issues. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic mesh belt tensioning device for a mesh belt furnace, so as to solve the problems in the prior art that the mesh belt furnace has no tensioning device, causing the mesh belt to crawl and shake, and the mesh belt is easily scratched on the ground.

[0005] The technical solution of the utility model is: an automatic mesh belt tensioning device for a mesh belt furnace, comprising: a mesh belt, a driving component for driving the mesh belt to convey, and a tensioning component for tightening the mesh belt;

[0006] The tensioning assembly includes a tensioning roller, a driving module for driving the tensioning roller to move linearly in a direction opposite to the conveying direction of the mesh belt, and a detection member for detecting whether the mesh belt is loose;

[0007] The height at which the detection member is located is the detection height. When the mesh belt is higher than the detection height, the tensioning assembly does not operate; when the mesh belt is at the detection height, the tensioning assembly operates.

[0008] Preferably, the tensioning assembly is installed below the furnace outlet;

[0009] The roller surface of the tensioning roller contacts the outer ring belt surface of the mesh belt.

[0010] Preferably, the driving module includes a ball screw and a first driving member for driving the screw of the ball screw to rotate. The tensioning roller is fixed to the nut of the ball screw through a base. Guide modules are provided on both axial sides of the tensioning roller to guide the overall movement of the tensioning roller.

[0011] Preferably, the guide module includes a pair of parallel guide members, each guide member includes a guide rod installed through a fixing seat, and a linear bearing sleeved on the guide rod, and the linear bearing is fixed on the base.

[0012] Preferably, the first driving member is a first motor, the output shaft of the first motor is connected to a first reducer, the output shaft of the first reducer is mounted with a first sprocket, the screw rod is fixedly mounted with a second sprocket, and the first sprocket and the second sprocket are sleeved with a chain.

[0013] Preferably, the detection element is a photoelectric sensor.

[0014] Preferably, the driving assembly includes a driven roller, a driving roller, and a second driving member for driving the driving roller to rotate, and the mesh belt is sleeved between the driven roller and the driving roller;

[0015] The second driving member is a second motor, and the output shaft of the second motor is connected to a second reducer, and the second reducer is connected to the active roller through a sprocket and a chain module.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] The utility model discloses an automatic mesh belt tensioning device for a mesh belt furnace, comprising a mesh belt, a driving assembly for driving the mesh belt, and a tensioning assembly for tightening the mesh belt; the tensioning assembly comprises a tensioning roller, a driving module for driving the tensioning roller to move linearly in a direction opposite to the mesh belt conveying direction, and a detection member for detecting whether the mesh belt is loose; the detection member is located at a detection height, and when the mesh belt is above the detection height, the tensioning assembly does not operate; when the mesh belt is at the detection height, the tensioning assembly operates; when the mesh belt becomes loose and droops and is detected by a photoelectric sensor, a controller controls the rotation of a first motor, thereby driving the rotation of a first reducer, which in turn drives the rotation of a first sprocket, which in turn drives the rotation of a second sprocket via a chain; since the second sprocket is fixedly connected to a lead screw, the second sprocket drives the lead screw to rotate, thereby driving the tensioning roller fixed to a nut to move leftward, tightening the mesh belt, thereby achieving automatic tensioning of the mesh belt. The utility model can achieve automatic tensioning of the mesh belt to prevent the mesh belt from slipping, and has strong practicality and a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a front view of an automatic mesh belt tensioning device for a mesh belt furnace according to this embodiment;

[0020] Figure 2 A top view of the assembly structure of the drive module, tensioning roller, and guide module of this embodiment;

[0021] Figure 3 for Figure 2 Left view of .

[0022] Among them: 1. mesh belt, 2. tensioning roller, 3. photoelectric sensor, 4. lead screw, 5. nut, 6. guide rod, 7. linear bearing, 8. first motor, 9. first sprocket, 10. second sprocket, 11. chain. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the present invention in conjunction with specific embodiments:

[0024] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0025] like Figure 1 As shown, an automatic mesh belt tensioning device for a mesh belt furnace includes: a mesh belt 1, a driving component for driving the mesh belt 1 to convey, and a tensioning component for tightening the mesh belt 1; the tensioning component includes a tensioning roller 2, a driving module for driving the tensioning roller 2 to move linearly in a direction opposite to the conveying direction of the mesh belt 1, and a detection component for detecting whether the mesh belt 1 is loose. In this embodiment, the detection component is a photoelectric sensor 3. The height of the detection component is the detection height. When the mesh belt 1 is higher than the detection height, the tensioning component does not operate; when the mesh belt 1 is at the detection height, the tensioning component operates. The tensioning component is installed below the furnace body outlet; the roller surface of the tensioning roller 2 is in contact with the outer ring belt surface of the mesh belt 1. As shown Figure 2 、 Figure 3 As shown, the driving module includes a ball screw and a first driving member that drives the screw rod 4 of the ball screw to rotate. The tensioning roller 2 is fixed to the nut 5 of the ball screw through a base. In this embodiment, the ball screw is used to make the movement of the tensioning roller 2 more stable; guide modules are provided on both axial sides of the tensioning roller 2 to guide the overall movement of the tensioning roller 2.

[0026] The guide module comprises a pair of parallel guide members, each comprising a guide rod 6 mounted via a fixed base and a linear bearing 7 mounted on the guide rod 6. The linear bearing 7 is fixed to the base. The guide module ensures the linear movement accuracy of the tensioning roller 2. The first driving member is a first motor 8, the output shaft of which is connected to a first reducer. A first sprocket 9 is mounted on the output shaft of the first reducer. A second sprocket 10 is fixedly mounted on the lead screw 4. A chain 11 is mounted on the first and second sprockets 9 and 10.

[0027] The driving assembly includes a driven roller and an active roller, and a second driving member that drives the active roller to rotate. The mesh belt 1 is arranged between the driven roller and the active roller; the second driving member is a second motor, and the output shaft of the second motor is connected to a second reducer. The second reducer is connected to the active roller through a sprocket and a chain module. The driving assembly is not shown in the figure.

[0028] The working principle of this utility model is as follows: Figure 1 As shown, when the mesh belt 1 is higher than the detection height, that is, the mesh belt 1 is higher than the photoelectric sensor 3, the mesh belt 1 continues to transport; when the mesh belt 1 becomes loose and droops and is detected by the photoelectric sensor 3, the controller controls the first motor 8 to rotate, thereby driving the first reducer to rotate, and the first reducer drives the first sprocket 9 to rotate, and the first sprocket 9 drives the second sprocket 10 to rotate through the chain 11. Since the second sprocket 10 is fixedly connected to the screw rod 4, the second sprocket 10 drives the screw rod 4 to rotate, and then drives the tensioning roller 2 fixed on the nut 5 to move to the left, tightening the mesh belt 1, thereby realizing automatic tightening of the mesh belt 1.

[0029] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they are not intended to limit the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. An automatic mesh belt tensioning device for a mesh belt furnace, characterized in that: include: Mesh belt, driving assembly for driving the mesh belt, and tensioning assembly for tightening the mesh belt; The tensioning assembly includes a tensioning roller, a driving module for driving the tensioning roller to move linearly in a direction opposite to the conveying direction of the mesh belt, and a detection member for detecting whether the mesh belt is loose; The height at which the detection member is located is the detection height. When the mesh belt is higher than the detection height, the tensioning assembly does not operate; when the mesh belt is at the detection height, the tensioning assembly operates.

2. The automatic mesh belt tensioning device for a mesh belt furnace according to claim 1, characterized in that: The tensioning assembly is installed below the furnace outlet; The roller surface of the tensioning roller contacts the outer ring belt surface of the mesh belt.

3. The automatic mesh belt tensioning device for a mesh belt furnace according to claim 1, characterized in that: The driving module includes a ball screw and a first driving member that drives the screw of the ball screw to rotate. The tensioning roller is fixed to the nut of the ball screw through a base. Guide modules are provided on both axial sides of the tensioning roller to guide the overall movement of the tensioning roller.

4. The automatic mesh belt tensioning device for a mesh belt furnace according to claim 3, characterized in that: The guide module includes a pair of parallel guide members, each of which includes a guide rod installed through a fixing seat and a linear bearing sleeved on the guide rod, and the linear bearing is fixed on the base.

5. The automatic mesh belt tensioning device for a mesh belt furnace according to claim 3, characterized in that: The first driving member is a first motor, the output shaft of the first motor is connected to a first reducer, the output shaft of the first reducer is installed with a first sprocket, the screw rod is fixedly installed with a second sprocket, and the first and second sprockets are sleeved with chains.

6. The automatic mesh belt tensioning device for a mesh belt furnace according to claim 1, characterized in that: The detection element is a photoelectric sensor.

7. The automatic mesh belt tensioning device for a mesh belt furnace according to claim 1, characterized in that: The driving assembly includes a driven roller, a driving roller, and a second driving member for driving the driving roller to rotate, and the mesh belt is sleeved between the driven roller and the driving roller; The second driving member is a second motor, and the output shaft of the second motor is connected to a second reducer, and the second reducer is connected to the active roller through a sprocket and a chain module.

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