Belt type grinding equipment

Abstract

The utility model relates to the field of grinding equipment, in particular to belt type grinding equipment which comprises a mounting plate, the back face of the mounting plate is connected with a driving motor, and a rotating shaft of the driving motor extends out of the front face of the mounting plate and is connected with a first belt wheel. At least two second belt wheels are arranged on the front face of the mounting plate, and the two second belt wheels and the first belt wheel are not located on the same straight line. The grinding belt is arranged around the first belt wheel and the second belt wheel; a force control device is arranged between the two second belt wheels, a transmission wheel is connected to the force control device, and the transmission wheel is connected to the inner side of the grinding belt in an abutting mode. The force control device is arranged on the side, opposite to the to-be-ground product, of the grinding belt, during grinding, the pressure between the to-be-ground product and the grinding belt can be controlled in real time according to setting, and then the grinding precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to a belt type grinding equipment. Background Art

[0002] Grinding machines are mainly used for surface treatment of workpieces, such as polishing and grinding. For surface treatment of workpieces, lathe turning or hand-held grinder grinding is usually used. However, due to the limitations of some special circumstances or the high requirements for the surface accuracy of the workpiece, it is difficult for the above two methods to effectively treat the surface of the workpiece conveniently and timely. Therefore, a belt grinder is needed to treat the surface of the workpiece.

[0003] In the prior art, the grinding belt used in the belt grinder is annular in shape, with the inner side in contact with the pulley assembly and the outer side in contact with the workpiece to grind the workpiece, and the grinding working surface is only the outer side. However, during grinding, due to wear and looseness of the grinding belt or instability of the handheld workpiece or grinding equipment, the pressure between the grinding belt and the product being polished is unstable, which in turn affects the grinding accuracy. Therefore, how to increase the grinding stability and thus ensure the grinding accuracy is a problem that technicians in this field need to consider. Utility Model Content

[0004] The utility model aims to provide a belt grinding device to solve the problems of low belt grinding precision in the prior art.

[0005] The technical solution of the utility model is: a belt grinding device, comprising a mounting plate, the back side of the mounting plate is connected to a driving motor, the rotating shaft of the driving motor extends out of the front side of the mounting plate and is connected to a first pulley; at least two second pulleys are arranged on the front side of the mounting plate, and the two second pulleys are not on the same straight line as the first pulley; the grinding belt is arranged around the first pulley and the second pulley;

[0006] A force control device is arranged between the two second pulleys, and a transmission wheel is connected to the force control device, and the transmission wheel is abutted and connected to the inner side of the grinding belt.

[0007] Preferably, a tensioning device is provided on the mounting plate, and the tensioning device includes a driving device fixedly connected to the mounting plate, and a tensioning wheel is connected to the driving device, and the rotation direction of the tensioning wheel is tangent to the movement direction of the grinding belt; the driving device can drive the tensioning wheel to approach or move away from the inner side of the grinding belt.

[0008] Preferably, at least two transmission wheels are provided, and the transmission wheels rotate with the rotation of the grinding belt. During grinding, the product to be ground is placed on the grinding belt and on the side opposite to the transmission wheel.

[0009] Preferably, a fixing plate is connected to the lower end of the mounting plate, and the fixing plate is fixedly connected to the mounting plate.

[0010] Preferably, a shell is arranged on the back side of the mounting plate, and the shell, the mounting plate and the fixing plate together form a cavity, and the driving motor and the force control device are arranged in the cavity.

[0011] Preferably, the driving device is a cylinder.

[0012] Compared with the prior art, the advantages of the utility model are:

[0013] (1) By arranging a force control device on the side opposite to the grinding belt and the product to be polished, the pressure between the product to be polished and the grinding belt can be controlled in real time according to the setting during polishing, thereby ensuring the polishing accuracy; the transmission wheel has at least two settings, and the product to be polished can be placed on the grinding belt between the transmission wheels of the chain during polishing, which can ensure the pressure during polishing and enable the product to be polished to always have effective contact with the grinding belt, further ensuring the polishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

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

[0016] Figure 2 It is a schematic diagram of the structure inside the shell of the belt grinding equipment of the utility model.

[0017] Among them: a mounting plate 1, a fixing plate 11, a housing 12, a driving motor 2, a first pulley 3, a second pulley 4, a grinding belt 5, a tensioning device 6, a driving device 61, a tensioning wheel 62, a force control device 7, and a transmission wheel 71. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the present invention in conjunction with specific embodiments:

[0019] like Figure 1-As shown in the figure, the utility model is applied to the grinding or polishing of products, etc., and the grinding belt is driven to rotate by the driving device, and the object to be polished is pressed against the grinding belt to complete the grinding or polishing of the belt-polished product. The grinding belt is made of soft material, which is easy to be worn or loosened after long-term use, resulting in ineffective grinding, and even the driving motor cannot drive it to rotate effectively; in addition, when the hand-held grinding device or hand-held product is being polished, the pressure between the product and the grinding belt is unstable, so it is easy to cause over-grinding or inadequate polishing. In order to solve the above problems, it is necessary to improve the existing belt-type grinding equipment. Specifically, a belt-type grinding equipment includes a mounting plate 1, the back of the mounting plate 1 is connected to the driving motor 2, the rotating shaft of the driving motor 2 extends from the front of the mounting plate 1 and is connected to a first pulley 3; at least two second pulleys 4 are arranged on the front of the mounting plate 1, and the two second pulleys 4 are not on the same straight line with the first pulley 3; the grinding belt 5 is arranged around the first pulley 3 and the second pulley 4, so that the grinding belt 5 is triangular, and the grinding side faces outward.

[0020] The mounting plate 1 is provided with a tensioning device 6, which includes a driving device 61 fixedly connected to the mounting plate 1, and a tensioning wheel 62 is connected to the driving device 61, and the rotation direction of the tensioning wheel 62 is tangent to the movement direction of the grinding belt 5; the driving device 61 can drive the tensioning wheel 62 to approach or move away from the inner side of the grinding belt 5. In this embodiment, the driving device 61 can be a cylinder drive, and of course it can also be other drive forms such as a motor, which can make the tensioning wheel 62 approach or move away from the grinding belt 5. The tensioning device 6 can be arranged between the first pulley 3 and one of the second pulleys 4.

[0021] A force control device 7 is provided between the two second pulleys 4, and a transmission wheel 71 is connected to the force control device 7, and the transmission wheel 71 is connected to the inner side of the grinding belt 5. At least two transmission wheels 71 are provided, and the transmission wheels 71 rotate with the rotation of the grinding belt 5. During grinding, the product to be polished is placed on the grinding belt 5 and on the side opposite to the transmission wheel 71. In this embodiment, during grinding, the product to be polished contacts the grinding belt 5, and the contact position is located on the side opposite to the transmission wheel on the grinding belt 5; the force control device 7 can set a pressure value in advance. During grinding, the product to be polished contacts the grinding belt 5 and then presses the transmission wheel 71 through the grinding belt 5, so that the force control device 7 obtains a pressing force in real time, and then automatically adjusts the transmission wheel 71 to move toward or away from the grinding belt 5, so that the product to be polished always maintains the pressure value between the grinding belt 5. Effective control of grinding accuracy is achieved.

[0022] The lower end of the mounting plate 1 is connected to a fixing plate 11, which is fixedly connected to the mounting plate 1. A housing 12 is disposed on the back of the mounting plate 1, and the housing 12, the mounting plate 1 and the fixing plate 11 together form a cavity, in which the drive motor 2 and the force control device 7 are disposed.

[0023] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model.

Claims

1. A belt grinding device, characterized in that: The invention comprises a mounting plate, the back side of the mounting plate is connected to a driving motor, the rotating shaft of the driving motor extends out of the front side of the mounting plate and is connected to a first pulley; at least two second pulleys are arranged on the front side of the mounting plate, and the two second pulleys are not on the same straight line as the first pulley; the grinding belt is arranged around the first pulley and the second pulley; A force control device is arranged between the two second pulleys, and a transmission wheel is connected to the force control device, and the transmission wheel is abutted and connected to the inner side of the grinding belt.

2. A belt grinding device according to claim 1, characterized in that: A tensioning device is provided on the mounting plate, and the tensioning device includes a driving device fixedly connected to the mounting plate, and a tensioning wheel is connected to the driving device, and the rotation direction of the tensioning wheel is tangent to the movement direction of the grinding belt; the driving device can drive the tensioning wheel to approach or move away from the inner side of the grinding belt.

3. A belt grinding device according to claim 1, characterized in that: At least two transmission wheels are provided, and the transmission wheels rotate with the rotation of the grinding belt. During grinding, the product to be ground is placed on the grinding belt and on the side opposite to the transmission wheel.

4. A belt grinding device according to claim 1, characterized in that: The lower end of the mounting plate is connected with a fixing plate, and the fixing plate is fixedly connected to the mounting plate.

5. A belt grinding device according to claim 4, characterized in that: A shell is arranged on the back of the mounting plate, and the shell, the mounting plate and the fixing plate together form a cavity, and the driving motor and the force control device are arranged in the cavity.

6. A belt grinding device according to claim 2, characterized in that: The driving device is a cylinder.

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