Abrasive paper tearing mechanism

Abstract

The utility model discloses an abrasive paper tearing mechanism which comprises a supporting seat, supporting columns are arranged on the supporting seat, a cavity used for storing abrasive paper sheets is defined by the multiple supporting columns, a sliding seat is arranged on the supporting columns in an up-down displacement mode, an annular seat is arranged at the upper ends of the supporting columns, a driving assembly is arranged in the annular seat, and the driving assembly is arranged on the supporting columns. A partition piece is rotatably arranged on the surface of the annular base, so that the driving assembly can drive the partition piece to rotate. The problem that according to an automatic abrasive paper replacing device in the prior art, due to the fact that abrasive paper is stacked in an abrasive paper box, when the abrasive paper at the uppermost end is adhered to a grinding head, the abrasive paper on the next layer is easily taken up and disengaged is solved.

Description

Technical Field

[0001] The utility model relates to the field of grinding, and in particular to a sandpaper tearing mechanism. Background Art

[0002] A sandpaper tearing mechanism is often provided on the automatic polishing production line. During operation, the polishing seat at the end of the robot arm will move to the sandpaper tearing mechanism, remove the old sandpaper, and then re-adhere new sandpaper. For example, the Chinese patent with patent number CN201910006148.9 provides a sandpaper automatic replacement device for robot intelligent polishing. The robot puts the worn sandpaper on the grinding head into the pneumatic clamp position, the clamp clamps the edge of the sandpaper, and the robot moves to tear off the sandpaper; the industrial camera is used for image acquisition to obtain the angle deviation between the dust suction hole of the grinding head and the dust suction hole of the sandpaper; the robot rotates the grinding head by a certain angle according to the angle deviation and puts it into a sandpaper box filled with sandpaper of different particle sizes to stick new sandpaper; the electric push rod is pushed upward by one position to keep the sandpaper in the sandpaper box at a certain height. For example, in the automatic sandpaper replacement device in the above-mentioned prior art, since the sandpaper is stacked in the sandpaper box, the grinding head is easy to pull up the sandpaper of the next layer when sticking the top sandpaper. Utility Model Content

[0003] The utility model aims to provide a sandpaper tearing mechanism, which solves the problem in the prior art that, because the sandpaper is stacked in a sandpaper box, the grinding head easily pulls up and separates the sandpaper of the next layer when sticking the uppermost sandpaper.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a sandpaper tearing mechanism, which includes a support, a pillar is arranged on the support, and a plurality of the pillars enclose a cavity for storing sandpaper sheets. A sliding seat is arranged on the pillar so as to be displaceable up and down. An annular seat is arranged at the upper end of the pillar, and a driving assembly is arranged in the annular seat. A separator is rotatably arranged on the surface of the annular seat, so that the driving assembly can drive the separator to rotate.

[0005] Preferably, an annular cavity is formed in the annular seat, an inner gear ring is rotatably provided in the annular cavity, a gear is rotatably provided in the annular cavity, the gear is meshed with the inner teeth of the inner gear ring, and the gear is connected to the separator via a rotating shaft.

[0006] Preferably, a driving gear is rotatably disposed in the annular cavity, a motor is disposed on the annular seat, and an output shaft of the motor is coaxially connected to the driving gear.

[0007] Preferably, an annular cover is provided at the opening of the annular cavity, and the rotating shaft passes through the annular cover and is connected to the separator.

[0008] Preferably, a cylinder is fixed on the support, and a piston rod of the cylinder is connected to the sliding seat.

[0009] Preferably, a tool holder is fixed on the support, and a scraping blade is provided on the tool holder.

[0010] The utility model provides a sandpaper tearing mechanism, which includes a support, a pillar is arranged on the support, a plurality of the pillars enclose a cavity for storing sandpaper sheets, a sliding seat is arranged on the pillar so as to be displaceable up and down, an annular seat is arranged at the upper end of the pillar, a driving assembly is arranged in the annular seat, and a separator is rotatably arranged on the surface of the annular seat, so that the driving assembly can drive the separator to rotate. During operation, the stacked sandpaper sheets are pushed upward by the upward displacement of the sliding seat to push the uppermost sandpaper sheet out of the annular seat, the grinding head of the mechanical arm is displaced above it and attached to it, and then the separator is driven to rotate by the driving assembly to be inserted between the uppermost sandpaper sheet and the sandpaper sheet below it, so that after the instrument arm is lifted, the sandpaper sheet of the next layer will not adhere to the sandpaper sheet of the upper layer and fall off.

[0011] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0013] Figure 1 This is the overall structural diagram of the sandpaper tearing mechanism provided by the utility model;

[0014] Figure 2 It is a partial structural diagram of the sandpaper tearing mechanism provided by the utility model;

[0015] Figure 3 It is a structural diagram of a driving component of a sandpaper tearing mechanism provided by the utility model.

[0016] Description of Reference Numerals

[0017] 1-support; 2-cylinder; 3-pillar; 4-sliding seat; 5-annular seat; 6-sandpaper; 7-tool holder; 51-annular cover; 52-separator; 53-inner gear ring; 54-motor; 55-driving gear; 56-gear; 57-rotating shaft. DETAILED DESCRIPTION

[0018] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0019] like Figure 1-3 As shown: The utility model provides a sandpaper tearing mechanism, which includes a support 1, on which a pillar 3 is arranged, and a plurality of the pillars 3 enclose a cavity for storing sandpaper sheets 6, and a sliding seat 4 is arranged on the pillar 3 so as to be displaceable up and down, and an annular seat 5 is arranged at the upper end of the pillar 3, and a driving assembly is arranged in the annular seat 5, and a separator 52 is rotatably arranged on the surface of the annular seat 5, so that the driving assembly can drive the separator 52 to rotate. During operation, the stacked sandpaper sheets are pushed upward by the upward displacement of the sliding seat to push the uppermost sandpaper sheet out of the annular seat, and the grinding head of the mechanical arm is displaced above it and attached to it, and then the separator is driven to rotate by the driving assembly to be inserted between the uppermost sandpaper sheet and the sandpaper sheet below it, so that after the instrument arm is lifted, the sandpaper sheet of the next layer will not adhere to the sandpaper sheet of the upper layer and fall off.

[0020] In a preferred embodiment of the utility model, an annular cavity is formed in the annular seat 5, an inner gear ring 53 is rotatably disposed in the annular cavity, a gear 56 is rotatably disposed in the annular cavity, the gear 56 is meshed with the inner teeth of the inner gear ring 53, and the gear 56 is connected to the separator 52 via a rotating shaft 57. By rotating the inner gear ring, multiple gears can be driven to rotate, so that the separator on the gear rotates a certain angle, so as to be inserted between the two sandpaper sheets.

[0021] In a preferred embodiment of the utility model, a driving gear 55 is rotatably disposed in the annular cavity, a motor 54 is disposed on the annular seat 5, and an output shaft of the motor 54 is coaxially connected to the driving gear 55. The motor drives the driving gear to rotate, thereby driving the inner gear ring to rotate.

[0022] In a preferred embodiment of the present invention, in order to protect the inner gear ring, gear and driving gear in the annular cavity, an annular cover 51 is provided at the opening of the annular cavity, and the rotating shaft 57 passes through the annular cover 51 and is connected to the separator 52.

[0023] In a preferred embodiment of the present utility model, in order to push the sliding seat to move, a cylinder 2 is fixed on the support 1, and a piston rod of the cylinder 2 is connected to the sliding seat 4.

[0024] In a preferred embodiment of the utility model, a tool holder 7 is fixed on the support 1, and a scraping blade is arranged on the tool holder 7. The grinding head on the mechanical arm can contact the scraping blade to scrape off the old sandpaper sheet thereon, which is convenient for subsequent replacement.

[0025] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0026] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0027] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A sandpaper tearing mechanism, characterized in that: The sandpaper tearing mechanism comprises a support (1), a support (3) is arranged on the support (1), a plurality of the support (3) encloses a cavity for storing sandpaper sheets (6), a sliding seat (4) is arranged on the support (3) so as to be displaceable up and down, an annular seat (5) is arranged at the upper end of the support (3), a driving component is arranged inside the annular seat (5), and a separator (52) is rotatably arranged on the surface of the annular seat (5), so that the driving component can drive the separator (52) to rotate.

2. The sandpaper tearing mechanism according to claim 1, characterized in that: An annular cavity is formed in the annular seat (5), an inner gear ring (53) is rotatably arranged in the annular cavity, a gear (56) is rotatably arranged in the annular cavity, the gear (56) is meshed with the inner teeth of the inner gear ring (53), and the gear (56) is connected to the separator (52) via a rotating shaft (57).

3. The sandpaper tearing mechanism according to claim 2, characterized in that: A driving gear (55) is rotatably arranged in the annular cavity, a motor (54) is arranged on the annular seat (5), and an output shaft of the motor (54) is coaxially connected to the driving gear (55).

4. The sandpaper tearing mechanism according to claim 3, characterized in that: An annular cover (51) is provided at the opening of the annular cavity, and the rotating shaft (57) passes through the annular cover (51) and is connected to the separating sheet (52).

5. The sandpaper tearing mechanism according to claim 1, characterized in that: A cylinder (2) is fixed on the support (1), and a piston rod of the cylinder (2) is connected to the sliding seat (4).

6. The sandpaper tearing mechanism according to claim 1, characterized in that: A knife holder (7) is fixed on the support (1), and a scraping blade is arranged on the knife holder (7).

Images