Double-abrasive-belt machine device with air cylinder and capable of rapidly replacing abrasive belts

Abstract

The utility model provides a double-belt sander device provided with an air cylinder and capable of rapidly replacing a sanding belt, which comprises a rack provided with a driving motor; the two transmission mechanisms comprise driving wheels, driven wheels and side wheels, the driving wheels, the driven wheels and the side wheels are rotationally connected to the rack, the driving wheels, the driven wheels and the side wheels are jointly sleeved with an abrasive belt, and the driving motor is used for driving the two driving wheels; the two reloading assemblies are arranged on the rack, and the two reloading assemblies are used for pushing the two side wheels correspondingly; the replacement assembly has a replacement state enabling the side wheels to be away from the abrasive belt and a tensioning state enabling the side wheels to abut against the abrasive belt. When the reloading assembly is in a tensioning state, the driving cylinder pushes the side wheel to abut against the abrasive belt, and the abrasive belt is made to work in a tensioning mode. When the reloading assembly is in a replacement state, the driving cylinder pushes the side wheel to be separated from the abrasive belt, and the abrasive belt is loosened from the transmission mechanism. In this way, the technical effect of rapidly replacing the abrasive belt is achieved, the abrasive belt replacing efficiency is improved, and the workload of operators is relieved.

Description

Technical Field

[0001] The present application relates to the technical field of polishing equipment, and in particular to a double-belt machine device with a cylinder for quickly changing abrasive belts. Background Art

[0002] A belt sander is a mechanical device used for metalworking, woodworking and other material processing. It is usually driven by an electric motor, which drives one or more rotating drums with abrasive belts (also called sandpaper belts) mounted on them. Abrasive belts are usually made of sand particles evenly distributed on fabric, paper or synthetic materials, and are used for grinding, polishing and finishing the surface of workpieces.

[0003] Belt sanders can be used to grind and polish the surfaces of metals, wood, plastics and other materials to improve their surface quality and finish. Due to the flexibility and adjustability of the sanding belt, the belt sander can be used to process workpiece surfaces with complex shapes, such as curves, chamfers, etc.

[0004] However, when replacing the abrasive belt consumables, the existing abrasive belt machines usually use the arm to press the spring movable arm to loosen the abrasive belt to achieve the replacement of the consumables. This structure takes a long time to replace the consumables and consumes a lot of rest energy. In addition, today's abrasive belt machines are usually equipped with only one transmission mechanism and one abrasive belt, and cannot quickly perform coarse and fine sand polishing on the product.

[0005] Therefore, the above-mentioned technical defects need to be changed urgently. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of this application is to provide a double-belt sanding machine device with a cylinder for quickly changing sanding belts, aiming to achieve the technical effect of quickly changing sanding belts, improve the efficiency of changing sanding belts, and reduce the workload of operators. At the same time, it improves the polishing efficiency of the product.

[0007] A technical solution adopted by the present application to solve the technical problem is as follows: a double belt machine device with a cylinder for quickly changing the belt, comprising:

[0008] A frame, on which a driving motor is arranged;

[0009] Two transmission mechanisms, both transmission mechanisms include a driving wheel, a driven wheel and a side wheel, the driving wheel, the driven wheel and the side wheel are rotatably connected to the frame, the driving wheel, the driven wheel and the side wheel are collectively sleeved with a sanding belt, and the driving motor is used to drive the two driving wheels;

[0010] and two changing assemblies, which are arranged on the frame and are used to push the two side wheels respectively;

[0011] Among them, the replacement assembly has a replacement state in which the side wheel is away from the sanding belt, and a tensioning state in which the side wheel is in contact with the sanding belt. Both replacement assemblies include a slide rail, a drive cylinder, and a slide plate. The slide rail is arranged on the frame, and the slide rail extends along a first direction. The slide plate is slidably connected to the slide rail. The drive cylinder is used to push the slide plate, and the side wheel is movably connected to the slide plate.

[0012] This embodiment is further configured such that a fine-tuning screw is threaded on the slide plate, the fine-tuning screw extends along the extension direction of the slide rail, the side wheel is movably connected to one end of the fine-tuning screw, and the fine-tuning screw is used to push the side wheel.

[0013] This embodiment is further configured such that the two driven wheels are detachably connected to the frame, and the two driven wheels are respectively configured as roller structures with different diameters.

[0014] This embodiment is further configured such that a first dust cover is provided on the frame, and the first dust cover is used for covering the driving motor.

[0015] This embodiment is further configured as follows: a second dust cover is provided on the frame, the second dust cover is used to cover the two transmission mechanisms, and an avoidance gap is opened at the position of the second dust cover corresponding to the side wheel, so that the part of the sanding belt corresponding to the side wheel protrudes.

[0016] This embodiment is further configured such that the wheel surface of the driving wheel is provided with anti-skid patterns.

[0017] This embodiment is further configured such that a synchronous wheel is provided at one end of the driving wheel, a belt is sleeved on the output shaft of the driving motor and the two synchronous wheels, and the output shaft of the driving motor drives the two driving wheels through the belt.

[0018] Compared with the prior art, the present application provides a double-belt sanding machine device with a cylinder for fast sanding belt replacement. In this solution, when the replacement assembly is in a tensioning state, the drive cylinder pushes the side wheel to make it contact with the sanding belt, so that the sanding belt is tightened; when the replacement assembly is in a replacement state, the drive cylinder pushes the side wheel to separate it from the sanding belt, so that the sanding belt is loosened from the transmission mechanism. In this way, the technical effect of fast sanding belt replacement is achieved, the efficiency of sanding belt replacement is improved, and the workload of operators is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of a double-belt sanding machine device with a cylinder for quickly changing sanding belts provided in this embodiment;

[0021] Figure 2 It is a partial structural schematic diagram of a double-belt machine device with a cylinder for quickly changing abrasive belts provided in this embodiment;

[0022] Figure 3 It is a partial structural schematic diagram of a double-belt machine device with a cylinder for quickly changing abrasive belts provided in this embodiment;

[0023] Figure 4 It is a structural schematic diagram of a replacement assembly of a double-belt machine device with a cylinder for quickly changing abrasive belts provided in this embodiment.

[0024] In the figure: 1. frame; 11. driving motor; 111. belt; 12. first dust cover; 13. second dust cover; 131. avoidance gap; 2. transmission mechanism; 21. driving wheel; 211. anti-skid pattern; 212. synchronous wheel; 22. driven wheel; 23. side wheel; 24. sanding belt; 3. replacement assembly; 31. slide rail; 32. driving cylinder; 33. slide plate; 331. fine-tuning screw. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In addition, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

[0029] The utility model provides Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a double-belt machine device with a cylinder for quickly changing abrasive belts is used for grinding and polishing the surface of a product to improve its surface quality and finish. Due to the flexibility and adjustability of the abrasive belt 24, the abrasive belt 24 machine can be used to process the surface of a workpiece with complex shapes, such as curves, chamfers, etc. Its main structure includes: a frame 1, two transmission mechanisms 2 and two replacement components 3, and a driving motor 11 is arranged on the frame 1; the two transmission mechanisms 2 each include a driving wheel 21, a driven wheel 22 and a side wheel 23, the driving wheel 21, the driven wheel 22 and the side wheel 23 are rotatably connected to the frame 1, the driving wheel 21, the driven wheel 22 and the side wheel 23 are on the same horizontal plane, and the driving wheel 21, the driven wheel 22 and the side wheel 23 are collectively sleeved with abrasive belts 24, and the driving motor 11 is used to drive the two driving wheels 21; the replacement component 3 is arranged on the frame 1, and the two replacement components 3 are respectively used to push the two side wheels 23.

[0030] The replacement assembly 3 has a replacement state in which the side wheel 23 is away from the sanding belt 24 , and a tensioning state in which the side wheel 23 is in contact with the sanding belt 24 .

[0031] It should be noted that, when replacing the consumables of the existing sanding belt 24 machine, the sanding belt 24 is usually loosened by pressing the spring movable arm with the arm force to replace the consumables. This structure takes a long time to replace the consumables and consumes a lot of rest energy. In addition, the current sanding belt 24 machine is usually equipped with only one transmission mechanism 2 and one sanding belt 24, and cannot quickly polish the product with coarse sand and fine sand.

[0032] In this solution, when the changing assembly 3 is in the tensioning state, the driving cylinder 32 pushes the side wheel 23 to make it abut against the sand belt 24, so that the sand belt 24 is tightened; when the changing assembly 3 is in the replacement state, the driving cylinder 32 pushes the side wheel 23 to separate it from the sand belt 24, so that the sand belt 24 is loosened from the transmission mechanism 2. Specifically, when the changing assembly 3 is in the tensioning state, the changing assembly 3 pushes the side wheel 23 to make the side wheel 23 abut against the sand belt 24, and the sand belt 24 is tightened in combination with the driving wheel 21 and the driven wheel 22, and the sand belt 24 is transmitted around the driving wheel 21, the driven wheel 22, and the side wheel 23. When the changing assembly 3 is in the replacement state, the changing assembly 3 pushes the side wheel 23 to separate the side wheel 23 from the sand belt 24, and the driving wheel 21 and the driven wheel 22 alone cannot tension the sand belt 24. Therefore, the sand belt 24 will be loosened from the transmission mechanism 2, thereby achieving the technical effect of replacing the sand belt 24. The efficiency of replacing the sanding belt 24 is improved, and the workload of the operator is reduced.

[0033] Further, such as Figure 3 and Figure 4 As shown, the two replacement components 3 each include a slide rail 31, a drive cylinder 32, and a slide plate 33. The slide rail 31 is arranged on the frame 1, and the slide rail 31 extends along a first direction. The slide plate 33 is slidably connected to the slide rail 31. The drive cylinder 32 is used to push the slide plate 33, and the side wheel 23 is movably connected to the slide plate 33. Figure 2 , Figure 3 and Figure 4 shown.

[0034] It is understandable that the positions of the driving wheel 21 and the driven wheel 22 remain unchanged, and the tightness of the sanding belt 24 can be adjusted by adjusting the position of the side wheel 23. The trajectory of the moving side wheel 23 is not limited to the first direction, as long as the moving trajectory of the side wheel 23 can effectively adjust the tightness of the sanding belt 24.

[0035] Further, such as Figure 4 As shown, a fine-tuning screw 331 is screwed on the slide 33, and the fine-tuning screw 331 extends along the extension direction of the slide rail 31. The side wheel 23 is movably connected to one end of the fine-tuning screw 331, and the fine-tuning screw 331 is used to push the side wheel 23. On the basis of the replacement component 3, the position of the side wheel 23 can be further adjusted by the fine-tuning screw 331. By adjusting the fine-tuning screw 331 to adjust the side wheel 23, the tightness of the sanding belt 24 can be further accurately adjusted.

[0036] Further, such as Figure 2 and Figure 3 As shown, two driven wheels 22 are detachably connected to the frame 1, and the two driven wheels 22 are respectively configured as roller structures with different diameters. The two driven wheels 22 are detachably connected to the frame 1, so that the staff can replace the adapted driven wheels 22 according to the needs of the production line, thereby achieving efficient production.

[0037] Further, such as Figure 1 As shown, a first dust cover 12 is provided on the frame 1, and the first dust cover 12 is used to cover the drive motor 11. It can be understood that the first dust cover 12 can prevent external dust from entering the drive motor 11.

[0038] Further, such as Figure 1 As shown, a second dust cover 13 is provided on the frame 1, and the second dust cover 13 is used to cover the two transmission mechanisms 2. The second dust cover 13 is provided with an avoidance notch 131 at the position corresponding to the side wheel 23, so that the part of the sand belt 24 corresponding to the side wheel 23 protrudes. It can be understood that the second dust cover 13 covers most of the transmission mechanism 2 and the sand belt 24, and can prevent dust and debris on the sand belt 24 from escaping.

[0039] Further, such as Figure 3 As shown, the wheel surface of the driving wheel 21 is provided with anti-skid lines 211. The anti-skid lines 211 can increase the friction between the driving wheel 21 and the sand belt 24, thereby preventing the driving wheel 21 and the sand belt 24 from slipping.

[0040] Furthermore, a synchronous wheel 212 is provided at one end of the driving wheel 21, and a belt 111 is provided on the output shaft of the driving motor 11 and the two synchronous wheels 212, and the output shaft of the driving motor 11 drives the two driving wheels 21 through the belt 111. It should be noted that different grinding processes may require different rotation speeds of the sanding belt 24, so in order to achieve different transmission speeds of the two sanding belts 24. In some embodiments, the outer diameters of the two driving wheels 21 or the outer diameters of the two synchronous wheels 212 are different, so that the transmission speeds of the two sanding belts 24 are different. In this way, the sanding belt 24 machine can adapt to different grinding processes.

[0041] In summary, the present application provides a double-sanding belt 24 machine device with a cylinder for quickly changing the sanding belt 24. In this solution, when the changing assembly 3 is in a tensioning state, the driving cylinder 32 pushes the side wheel 23 to make it abut against the sanding belt 24, so that the sanding belt 24 is tightened; when the changing assembly 3 is in a replacement state, the driving cylinder 32 pushes the side wheel 23 to separate it from the sanding belt 24, so that the sanding belt 24 is loosened from the transmission mechanism 2. In this way, the technical effect of quickly changing the sanding belt 24 is achieved, the efficiency of changing the sanding belt 24 is improved, and the workload of the operator is reduced.

[0042] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A double belt sander device with cylinder for quick belt change, characterized in that: include: A frame, wherein a driving motor is arranged on the frame; Two transmission mechanisms, each of which comprises a driving wheel, a driven wheel and a side wheel, wherein the driving wheel, the driven wheel and the side wheel are rotatably connected to the frame, and the driving wheel, the driven wheel and the side wheel are collectively sleeved with a sanding belt, and the driving motor is used to drive the two driving wheels; and two changing assemblies, wherein the changing assemblies are arranged on the frame, and the two changing assemblies are respectively used to push the two side wheels; The replacement assembly has a replacement state in which the side wheel is away from the sanding belt, and a tensioning state in which the side wheel is in contact with the sanding belt, and both replacement assemblies include a slide rail, a drive cylinder, and a slide plate; The slide rail is arranged on the frame, the slide rail extends along a first direction, the slide plate is slidably connected to the slide rail, the drive cylinder is used to push the slide plate, and the side wheel is movably connected to the slide plate.

2. A double belt sander device with cylinder for quick belt change according to claim 1, characterized in that: A fine-tuning screw is screwed on the slide plate, and the fine-tuning screw extends along the extension direction of the slide rail. The side wheel is movably connected to one end of the fine-tuning screw, and the fine-tuning screw is used to push the side wheel.

3. A double belt sander device with cylinder for quick belt change according to claim 1, characterized in that: The two driven wheels are detachably connected to the frame, and the two driven wheels are respectively configured as roller structures with different diameters.

4. A double belt sander device with cylinder for fast belt changing according to claim 1, characterized in that: The frame is provided with a first dust cover, and the first dust cover is used for covering the driving motor.

5. A double belt sander device with cylinder for fast belt changing according to claim 1, characterized in that: The frame is provided with a second dust cover, which is used to cover the two transmission mechanisms. The second dust cover is provided with an avoidance gap at a position corresponding to the side wheels, so that the part of the sand belt corresponding to the side wheels protrudes.

6. A double belt sander device with cylinder for fast belt changing according to claim 1, characterized in that: The wheel surface of the driving wheel is provided with anti-skid patterns.

7. A double belt sander device with cylinder for fast belt changing according to claim 1, characterized in that: A synchronous wheel is arranged at one end of the driving wheel, and belts are sleeved on the output shaft of the driving motor and the two synchronous wheels. The output shaft of the driving motor drives the two driving wheels through the belts.

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