Abrasive belt automatic tensioning and guiding adjusting mechanism for polishing equipment

Abstract

The utility model discloses an abrasive belt automatic tensioning and guiding adjusting mechanism for polishing equipment. The abrasive belt automatic tensioning and guiding adjusting mechanism comprises a bottom plate, a polishing disc, a driving wheel assembly, a first tensioning wheel assembly, a first driven wheel assembly, a second tensioning wheel assembly, a second driven wheel assembly, an abrasive belt, a bearing, a clamping spring and a tension spring. The polishing disc is driven by a motor and transmits power to the driving wheel assembly, so that the abrasive belt circularly runs along a closed path. The first tensioning wheel assembly comprises an eccentric plate, can be adjusted in a rotating mode and provides an automatic tensioning function. The second tensioning wheel assembly comprises a top plate with the adjustable height so that the tensioning state of the abrasive belt can be further controlled. The first driven wheel and the second driven wheel assembly provide accurate guiding for the abrasive belt, and stable operation is ensured. The snap spring is used for fixing the position of the bearing, and the tension spring provides continuous tensioning force to prevent the abrasive belt from loosening. The automatic tensioning device is compact in structure, has automatic tensioning and guiding adjusting functions, and is suitable for stable operation of an abrasive belt in polishing equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing equipment, in particular to an automatic tensioning and guide adjustment mechanism for a sanding belt used in a polishing equipment, which is specifically applied to the tensioning and guide adjustment of the sanding belt to ensure the smooth operation and efficient work of the sanding belt during the polishing process. Background Art

[0002] In existing polishing equipment, the belt drive mechanism typically uses a fixed tensioning mechanism, which causes the belt to loosen after prolonged use, affecting polishing quality and equipment efficiency. Furthermore, existing belt guide adjustment is relatively simple, making it prone to belt deviation during operation, increasing maintenance difficulties and shortening the equipment's service life. Therefore, developing a belt mechanism with automatic tensioning and precise guide adjustment functions is key to solving these problems. Utility Model Content

[0003] The purpose of the utility model is to provide an automatic tensioning and guide adjustment mechanism for a sanding belt used in polishing equipment. The automatic tensioning and guide adjustment of the sanding belt are achieved through structural design to ensure the stability and accuracy of the sanding belt during operation, thereby improving the polishing effect and the working efficiency of the equipment.

[0004] To achieve the above-mentioned purpose, the present invention provides an automatic belt tensioning and guiding adjustment mechanism for polishing equipment, the specific structure and technical solution of which are as follows:

[0005] An automatic tensioning and guiding adjustment mechanism for an abrasive belt of a polishing device, comprising:

[0006] Base plate: serves as the basic structure for supporting and installing various components, ensuring the overall structural stability of the equipment, and is fixed to the frame of the polishing equipment through mounting holes.

[0007] Throwing disc: Installed below the base plate, it is driven by an external motor to provide rotational power. The throwing disc is connected to the driving wheel assembly, transmitting power to the abrasive belt, causing it to move along a closed path.

[0008] Driving wheel assembly: includes driving wheel shaft, driving wheel and pressure plate. The driving wheel shaft is vertically fixed on the base plate and transmits the power of the throwing disc to the driving wheel through the pressure plate, driving the abrasive belt to circulate along the set closed path.

[0009] The first tensioner assembly consists of an eccentric plate, a spacer ring, the first tensioner, and a shaft screw. The eccentric plate is secured to the baseplate via mounting holes. The eccentric plate is designed to rotate and adjust, changing the tensioning position of the first tensioner, providing automatic tension adjustment. The spacer ring prevents direct contact between the tensioner and the baseplate, reducing wear.

[0010] The first driven wheel assembly includes a driven shaft and a first driven wheel. The driven shaft is vertically fixed to the base plate by bolts. The first driven wheel is sleeved on the driven shaft and rotates through the bearing to contact the sanding belt. It is used to guide the sanding belt to move along the set path to ensure the stability of the sanding belt direction.

[0011] The second tensioning wheel assembly consists of a top plate and a second tensioning wheel. The top plate is connected to the bottom plate via a bracket. The top plate is height-adjustable, and the second tensioning wheel is mounted on the top plate. Adjusting the top plate's height changes the contact point between the second tensioning wheel and the abrasive belt, thereby controlling the belt tension and optimizing the tensioning effect.

[0012] The second driven wheel assembly includes a driven adjustment shaft and a second driven wheel. The driven adjustment shaft is mounted on the base plate through fasteners. The second driven wheel rotates through the driven adjustment shaft and contacts the abrasive belt to provide auxiliary guidance for the abrasive belt and prevent the abrasive belt from deviating from the path during operation.

[0013] Abrasive belt: This belt is wound between the driving wheel, the first driven wheel, the second driven wheel, the first tensioning wheel, and the second tensioning wheel. It is used for transmission and polishing. The abrasive belt is usually made of wear-resistant material to extend its service life.

[0014] Multiple bearings: set on the rotating shaft of each wheel assembly to support the rotation of the wheel assembly, reduce friction, and ensure that the sanding belt runs smoothly on the closed path.

[0015] Circlip: used to fix the position of each bearing to prevent the bearing from displacement during operation, thereby ensuring the stability of the entire mechanism.

[0016] Tension spring: Installed between the base plate and the first tensioning wheel assembly, it provides continuous tension to ensure that the abrasive belt maintains proper tension during long-term operation. Even if the abrasive belt is slightly stretched, the tension spring can provide sufficient compensating tension.

[0017] The cam is fixed to the bottom plate and is provided with a first movable frame, and the cam is fixed to the bottom plate and is provided with a first movable frame, and the cam is fixed to the bottom plate and is provided with a second movable frame, and the cam is fixed to the bottom plate and is provided with a first movable frame, and the cam is fixed to the bottom plate and is provided with a The second tensioning wheel is installed on the top plate, and the height of the top plate can be adjusted to adapt to different tensioning requirements, thereby further controlling the tension of the sanding belt; the second driven wheel assembly includes a driven adjustment shaft and a second driven wheel, and the driven adjustment shaft is installed on the bottom plate. The second driven wheel rotates around the driven adjustment shaft and contacts the sanding belt to provide auxiliary guidance and stabilization to ensure smooth operation of the sanding belt; the sanding belt is wrapped around the driving wheel, the first driven wheel, the second driven wheel, the first tensioning wheel and the second tensioning wheel to realize power transmission for polishing operation; multiple bearings are arranged at the rotating part of each wheel assembly to support the rotational movement of the wheel assembly to ensure smooth operation of the sanding belt on a closed path; a retaining spring is used to fix the axial position of each bearing to prevent the bearing from displacement during operation; a tension spring is installed between the bottom plate and the first tensioning wheel assembly to provide continuous tension to ensure the tension state of the sanding belt during operation.

[0018] Preferably, the driving wheel shaft in the driving wheel assembly transmits the power of the throwing disc to the driving wheel through the pressing plate, and drives the sanding belt to run on a closed path through the driving wheel.

[0019] Preferably, the eccentric plate of the first tensioning wheel assembly can be adjusted by rotation to change the tensioning position of the first tensioning wheel relative to the abrasive belt, thereby achieving automatic tensioning of the abrasive belt.

[0020] Preferably, the first driven wheel assembly is arranged in a side area of ​​the base plate, and the driven shaft is installed vertically, so that the first driven wheel contacts the abrasive belt through the driven shaft to guide the movement direction of the abrasive belt.

[0021] Preferably, the top plate of the second tensioning wheel assembly can adjust its installation height to adapt to different tensioning requirements of the sanding belt and further control the tensioning state of the sanding belt.

[0022] Preferably, the second driven wheel assembly is connected to the base plate via a driven adjustment shaft and is in contact with the abrasive belt, so as to provide additional guiding and stabilizing effects on the closed path of the abrasive belt.

[0023] Preferably, the base plate is provided with a plurality of mounting holes and positioning holes for fixing the various components, so as to facilitate the precise installation and adjustment of the various components and ensure the stability of the entire mechanism.

[0024] Preferably, the driving wheel is tightly connected to the driving wheel shaft through a pressing plate, so as to ensure the stability of power transmission and enable the sanding belt to run smoothly.

[0025] Preferably, the plurality of bearings are mounted on the rotating shafts of each tensioning wheel assembly and driven wheel assembly to support the rotation of the tensioning wheel and the driven wheel, thereby ensuring smooth operation of the sanding belt.

[0026] Preferably, the tension spring provides continuous tensioning force to prevent the sanding belt from becoming loose during operation, thereby ensuring the tensioning state and polishing effect of the sanding belt during operation.

[0027] The automatic belt tensioning and guide adjustment mechanism provided by the utility model has the following advantages:

[0028] 1. Automatic tension adjustment function: through the adjustment of the eccentric plate and the top plate, the tension of the sanding belt is adjusted in real time to ensure that the sanding belt maintains appropriate tightness to avoid relaxation affecting the polishing effect.

[0029] 2. The guide adjustment function ensures that the sanding belt runs along the preset path during operation by setting the first driven wheel and the second driven wheel to prevent deviation.

[0030] 3. The structure is compact and stable. The base plate is an integral supporting structure. Combined with the bearing design of each rotating component, it can reduce wear and noise and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0033] Figure 2 It is a schematic diagram of the overall structure of the utility model, wherein the abrasive belt is not shown;

[0034] Figure 3 This is an exploded schematic diagram of the structure of the first tensioning pulley of the utility model;

[0035] Figure 4It is a cross-sectional view of the first tensioning pulley of the utility model;

[0036] Figure 5 It is a cross-sectional view of the second tensioning pulley of the utility model;

[0037] Figure 6 This is a schematic diagram of the exploded structure of the second tensioning wheel of the present invention;

[0038] Figure 7 It is a cross-sectional view of the first driven wheel of the utility model;

[0039] Figure 8 This is a schematic exploded view of the structure of the first driven wheel of the present invention;

[0040] Figure 9 It is a cross-sectional view of the second driven wheel of the utility model;

[0041] Figure 10 This is a schematic exploded view of the structure of the second driven wheel of the present invention;

[0042] Figure 11 This is an exploded schematic diagram of the structure of the driving wheel of the utility model;

[0043] Description of reference numerals:

[0044] 1. Casting disc; 2. Bottom plate; 3. Driving wheel assembly; 4. First tensioning wheel assembly; 5. First driven wheel assembly; 6. Second tensioning wheel assembly; 7. Second driven wheel assembly; 8. Sanding belt; 9. Bearing; 11. Circlip; 12. Tension spring; 31. Driving wheel shaft; 32. Driving wheel; 33. Pressing plate; 41. Eccentric plate; 42. Spacer ring; 43. First tensioning wheel; 44. Shaft screw; 51. Driven shaft; 52. First driven wheel; 61. Top plate; 62. Second tensioning wheel; 71. Driven adjustment shaft; 72. Second driven wheel. DETAILED DESCRIPTION

[0045] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0046] like Figures 1 to 11 As shown, in this utility model, the base plate 2 is made of metal and is designed with multiple mounting holes for precisely fixing the casting disc 1, the driving wheel assembly 3, the tensioning wheel assembly, and the driven wheel assembly, ensuring the firmness and stability of the entire mechanism. The base plate is fixed to the frame of the polishing equipment by bolts to provide a solid foundation support.

[0047] The base plate 2 serves as the basic structure for supporting and installing various components; the throwing disc 1 is installed under the base plate 2 to provide rotational power; the driving wheel assembly 3 includes a driving wheel shaft 31, a driving wheel 32 and a pressure plate 33. The driving wheel shaft 31 is fixed to the base plate 2 and connected to the throwing disc 1. The pressure plate 33 is used to transmit the rotational power of the throwing disc 1 to the driving wheel 32, driving the sanding belt 8 to move along a closed path; the first tensioning wheel assembly 4 includes an eccentric plate 41, a spacer ring 42, a first tensioning wheel 43 and an axis screw 44, which is installed through the eccentric plate 41 On the bottom plate 2, the spacer ring 42 and the first tensioning wheel 43 are fixed by the shaft screw 44, and the eccentric plate 41 is adjustable to change the tensioning force of the first tensioning wheel 43 on the sanding belt 8 to achieve automatic tensioning adjustment; the first driven wheel assembly 5 includes a driven shaft 51 and a first driven wheel 52. The driven shaft 51 is vertically installed on the bottom plate 2. The first driven wheel 52 rotates around the driven shaft 51 and contacts the sanding belt 8 to guide the movement direction of the sanding belt; the second tensioning wheel assembly 6 includes a top plate 61 and a second tensioning wheel 62. The top plate 61 is fixed Above the bottom plate 2, the second tensioning wheel 62 is mounted on the top plate 61. The height of the top plate 61 can be adjusted to meet different tensioning requirements, thereby further controlling the tension of the sanding belt 8. The second driven wheel assembly 7 includes a driven adjustment shaft 71 and a second driven wheel 72. The driven adjustment shaft 71 is mounted on the bottom plate 2. The second driven wheel 72 rotates around the driven adjustment shaft 71 and contacts the sanding belt 8 to provide auxiliary guidance and stabilization to ensure smooth operation of the sanding belt. The sanding belt 8 surrounds the driving wheel 32, the first driven wheel 52, the second driven wheel 53, and the second driven wheel 54. The two driven wheels 72, the first tensioning wheel 43 and the second tensioning wheel 62 are used to realize power transmission for polishing operations; multiple bearings 9 are arranged at the rotating parts of each wheel assembly to support the rotational movement of the wheel assembly to ensure that the sanding belt 8 runs smoothly on a closed path; the retaining spring 11 is used to fix the axial position of each bearing 9 to prevent the bearing from being displaced during operation; the tension spring 12 is installed between the base plate 2 and the first tensioning wheel assembly 4 to provide continuous tensioning force to ensure that the sanding belt 8 is in a tensioned state during operation.

[0048] The driving wheel shaft 31 in the driving wheel assembly 3 transmits the power of the throwing disc 1 to the driving wheel 32 through the pressure plate 33, and drives the sanding belt 8 to run on a closed path through the driving wheel 32.

[0049] The eccentric plate 41 of the first tensioning wheel assembly 4 can be adjusted by rotation to change the tensioning position of the first tensioning wheel 43 relative to the sanding belt 8, thereby achieving automatic tensioning of the sanding belt.

[0050] The first driven wheel assembly 5 is disposed on a side area of ​​the base plate 2 , and the driven shaft 51 is vertically installed so that the first driven wheel 52 contacts the sanding belt 8 through the driven shaft 51 to guide the movement direction of the sanding belt.

[0051] The top plate 61 of the second tensioning wheel assembly 6 can be adjusted in its installation height to adapt to different tensioning requirements of the sanding belt 8 and further control the tensioning state of the sanding belt.

[0052] The second driven wheel assembly 7 is connected to the base plate 2 via a driven adjustment shaft 71 and contacts the sanding belt 8 to provide additional guiding and stabilizing effects on the closed path of the sanding belt.

[0053] The base plate 2 is provided with a plurality of mounting holes and positioning holes for fixing various components, so as to facilitate the precise installation and adjustment of various components and ensure the stability of the entire mechanism.

[0054] The driving wheel 32 is tightly connected to the driving wheel shaft 31 through the pressing plate 33, ensuring the stability of power transmission and allowing the sanding belt 8 to run smoothly.

[0055] A plurality of bearings 9 are mounted on the rotating shafts of each tensioning wheel assembly and driven wheel assembly to support the rotation of the tensioning wheel and the driven wheel, thereby ensuring that the sanding belt 8 runs smoothly.

[0056] The tension spring 12 provides continuous tensioning force to prevent the sanding belt 8 from becoming loose during operation, thereby ensuring the tensioning state and polishing effect of the sanding belt during operation.

[0057] The throwing disc 1 is driven by an external motor, providing continuous rotational power. This power is transmitted to the driving wheel 32 via a pressure plate 33. The driving wheel shaft 31 is vertically fixed to the base plate 2, allowing the driving wheel 32 to drive the abrasive belt 8 in a circular motion along a closed path. The design of the driving wheel assembly 3 ensures smooth, slip-free power transmission.

[0058] The first tensioning pulley assembly 4 includes an eccentric plate 41. Rotating the eccentric plate 41 adjusts the contact angle and position of the first tensioning pulley 43 to adjust the tension of the abrasive belt 8. The eccentric plate's adjustable range ensures the tension is suitable for different abrasive belt types. The eccentric plate connects the first tensioning pulley 43 to a spacer ring 42, which reduces wear between the first tensioning pulley and the base plate, extending its service life.

[0059] The first driven wheel assembly 5 includes a driven shaft 51 and a first driven wheel 52. The driven shaft 51 is vertically mounted on the base plate 2. The first driven wheel 52 is mounted on the driven shaft and supported by bearings 9. The first driven wheel is provided to guide the abrasive belt, preventing it from drifting during operation and ensuring stable operation.

[0060] The second tensioning wheel assembly 6 comprises a top plate 61 and a second tensioning wheel 62. The top plate 61 is fixed to the bottom plate 2 via a bracket and can be adjusted up and down to accommodate abrasive belts of varying specifications. The second tensioning wheel 62 is mounted on the top plate. Adjusting the height of the top plate further adjusts the tension of the abrasive belt, ensuring the proper belt tightness.

[0061] The second driven wheel assembly 7 includes a driven adjustment shaft 71 and a second driven wheel 72. The driven adjustment shaft 71 is mounted on the base plate 2, and the second driven wheel 72 is mounted on the driven adjustment shaft via a bearing. The second driven wheel 72 is able to rotate smoothly and contact the abrasive belt 8 to provide additional guidance control and prevent the abrasive belt from shifting due to vibration or wear during operation.

[0062] The tension spring 12 is connected between the base plate 2 and the first tensioning wheel assembly 4, providing continuous tension to ensure the belt maintains stable tension during operation. Even if the belt slackens slightly due to use, the tension spring automatically compensates for the tension. The retaining spring 11 secures the bearings to prevent them from shifting during operation, ensuring the stability of each wheel assembly.

[0063] In summary, the utility model provides a stable and efficient abrasive belt transmission device through innovative tensioning and guide adjustment design, which can be applied to various types of polishing equipment and has the characteristics of compact structure, long service life and convenient maintenance.

[0064] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. An automatic belt tensioning and guiding adjustment mechanism for polishing equipment, characterized in that: include: A base plate (2), a throwing disc (1), a driving wheel assembly (3), a first tensioning wheel assembly (4), a first driven wheel assembly (5), a second tensioning wheel assembly (6), a second driven wheel assembly (7), a sanding belt (8), a plurality of bearings (9), a retaining spring (11) and a tension spring (12); the base plate (2) serves as a basic structure for supporting and installing various components; the throwing disc (1) is installed below the base plate (2) and is used to provide rotational power; the driving wheel assembly (3) comprises a driving wheel shaft (31), a driving wheel (32) and a pressing plate (33); the driving wheel shaft (31) is fixed on the base plate (2) and connected to the throwing disc (1); the pressing plate (33) is used to transmit the rotational power of the throwing disc (1) to the ground; to the driving wheel (32), driving the sanding belt (8) to move along a closed path; the first tensioning wheel assembly (4), including an eccentric plate (41), a spacer ring (42), a first tensioning wheel (43) and an axis screw (44), is installed on the base plate (2) through the eccentric plate (41), the spacer ring (42) and the first tensioning wheel (43) are fixed by the axis screw (44), the eccentric plate (41) is adjustable to change the tensioning force of the first tensioning wheel (43) on the sanding belt (8), thereby realizing automatic tensioning adjustment; the first driven wheel assembly (5), including a driven shaft (51) and a first driven wheel (52), the driven shaft (51) is vertically installed on the base plate (2), the first driven wheel (52) rotates around the driven shaft (51) The second tensioning wheel assembly (6) includes a top plate (61) and a second tensioning wheel (62), wherein the top plate (61) is fixed above the bottom plate (2), and the second tensioning wheel (62) is mounted on the top plate (61). The top plate (61) can be adjusted in height to meet different tensioning requirements, thereby further controlling the tension of the sanding belt (8); the second driven wheel assembly (7) includes a driven adjustment shaft (71) and a second driven wheel (72), wherein the driven adjustment shaft (71) is mounted on the bottom plate (2), and the second driven wheel (72) rotates around the driven adjustment shaft (71) and contacts the sanding belt (8), thereby providing auxiliary guidance and stabilization. , ensuring that the sanding belt runs smoothly; the sanding belt (8) is wrapped around the driving wheel (32), the first driven wheel (52), the second driven wheel (72), the first tensioning wheel (43) and the second tensioning wheel (62), and is used to realize power transmission of the polishing operation; a plurality of bearings (9) are arranged at the rotating parts of each wheel assembly, and are used to support the rotational movement of the wheel assembly, ensuring that the sanding belt (8) runs smoothly on a closed path; a retaining spring (11) is used to fix the axial position of each bearing (9) to prevent the bearing from being displaced during operation; a tension spring (12) is installed between the base plate (2) and the first tensioning wheel assembly (4), and provides continuous tensioning force to ensure that the sanding belt (8) is in a tensioned state during operation.

2. The automatic belt tensioning and guiding adjustment mechanism according to claim 1, characterized in that: The driving wheel shaft (31) in the driving wheel assembly (3) transmits the power of the throwing disc (1) to the driving wheel (32) through the pressing plate (33), and drives the sanding belt (8) to run on a closed path through the driving wheel (32).

3. The automatic belt tensioning and guiding adjustment mechanism according to claim 1, characterized in that: The eccentric plate (41) of the first tensioning wheel assembly (4) can be adjusted by rotation to change the tensioning position of the first tensioning wheel (43) relative to the sanding belt (8), thereby achieving automatic tensioning of the sanding belt.

4. The automatic belt tensioning and guiding adjustment mechanism according to claim 1, characterized in that: The first driven wheel assembly (5) is arranged in the side area of ​​the base plate (2), and the driven shaft (51) is installed vertically, so that the first driven wheel (52) contacts the sanding belt (8) through the driven shaft (51) to guide the movement direction of the sanding belt.

5. The automatic belt tensioning and guiding adjustment mechanism according to claim 1, characterized in that: The top plate (61) of the second tensioning wheel assembly (6) can be adjusted in its installation height to adapt to different tensioning requirements of the sanding belt (8) and further control the tensioning state of the sanding belt.

6. The automatic belt tensioning and guiding adjustment mechanism according to claim 1, characterized in that: The second driven wheel assembly (7) is connected to the base plate (2) via a driven adjustment shaft (71) and is in contact with the sanding belt (8) to provide additional guiding and stabilizing effects on the closed path of the sanding belt.

7. The automatic belt tensioning and guiding adjustment mechanism according to claim 1, characterized in that: The base plate (2) is provided with a plurality of mounting holes and positioning holes for fixing various components, so as to facilitate the precise installation and adjustment of various components and ensure the stability of the entire mechanism.

8. The automatic belt tensioning and guiding adjustment mechanism according to claim 1, characterized in that: The driving wheel (32) is tightly connected to the driving wheel shaft (31) through a pressing sheet (33), thereby ensuring the stability of power transmission and allowing the sanding belt (8) to run smoothly.

9. The automatic belt tensioning and guiding adjustment mechanism according to claim 1, characterized in that: The plurality of bearings (9) are mounted on the rotating shafts of the tensioning wheel assembly and the driven wheel assembly, and are used to support the rotation of the tensioning wheel and the driven wheel, thereby ensuring that the sanding belt (8) runs smoothly.

10. The automatic belt tensioning and guiding adjustment mechanism according to claim 1, characterized in that: The tension spring (12) provides continuous tensioning force to prevent the sanding belt (8) from becoming loose during operation, thereby ensuring the tensioning state and polishing effect of the sanding belt during operation.

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