Sand blasting fixing device and sand blasting system

Abstract

The invention belongs to the technical field of polyurethane forming, and discloses a sand blasting fixing device and a sand blasting system. The sand blasting fixing device comprises a frame body and rotating discs, two first gears are arranged on the frame body in a spaced mode, the two rotating discs are arranged between the two first gears in a spaced mode, the two rotating discs are both connected to the output end of a first driving part, and the first driving part drives the two rotating discs to rotate synchronously; guide shafts are inserted in the two rotating discs at intervals in the circumferential direction, a pressing disc is arranged at the end, facing the other rotating disc, of the guide shaft on one rotating disc, an elastic piece is arranged between the pressing disc and the rotating disc provided with the pressing disc, a second gear is arranged at the end, away from the pressing disc, of the guide shaft, and the second gear is meshed with the first gear; when the first driving piece drives the two rotating discs to rotate, the guide shafts rotate on the rotating discs; according to the sand blasting system, the sand blasting fixing device is adopted, the polyurethane profile can be turned over in the sand blasting process, and the sand blasting efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of polyurethane molding, and particularly relates to a sandblasting fixing device and a sandblasting system. Background Art

[0002] During the molding process of polyurethane profiles, sandblasting treatment is required to increase the surface roughness of the formed polyurethane, improve the adhesion, remove surface contaminants and oxide layers, etc.

[0003] In the prior art, sandblasting is often carried out during the conveying process of the conveyor belt, that is, a sandblasting port is arranged on the path of the conveyor belt to sandblast the polyurethane profiles being conveyed on the conveyor belt. However, this form can only operate on one side of the polyurethane profile. When operating on other surfaces of the polyurethane profile, manual turning is required and then sandblasting operation is carried out again, which reduces the sandblasting efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a sandblasting fixing device and a sandblasting system, which can improve the sandblasting efficiency.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A sandblasting fixing device, which includes:

[0007] A frame body, on which two first gears are arranged at intervals;

[0008] A turntable, two turntables are arranged at intervals between the two first gears, and both of the two turntables are connected to the output end of a first driving member, and the first driving member drives the two turntables to rotate synchronously;

[0009] On the two turntables, guide shafts are inserted at intervals along the circumferences thereof. One end of the guide shaft on one turntable facing the other turntable is provided with a pressing plate. An elastic member is arranged between the pressing plate and the turntable where the pressing plate is arranged. The end of the guide shaft away from the pressing plate is provided with a second gear, and the second gear meshes with the first gear. When the first driving member drives the two turntables to rotate, the guide shaft rotates on the turntable.

[0010] In some embodiments, the first driving member is arranged on the frame body, a rotating shaft is arranged at the output end of the first driving member, the rotating shaft penetrates through the first gear and the turntable, and the first driving member drives the rotating shaft to drive the turntable to rotate.

[0011] In some embodiments, the rotating shaft is provided with a plugging protrusion extending along its axial direction, and the turntable is provided with a plugging notch cooperating with the plugging protrusion.

[0012] In some embodiments, the distance between the two turntables is adjustable.

[0013] In some embodiments, a second driving member is disposed on the frame, an output end of the second driving member is connected to one of the first gears, the second driving member drives the first gear to move along the axial direction of the rotating shaft, and the turntable is connected to the first gear.

[0014] In some embodiments, the elastic member is a compression spring, and the compression spring is sleeved on the guide shaft.

[0015] In some embodiments, a push piece is provided on the frame, and a push position is provided on the first gear. When the second gear moves to the push position, the push piece pushes against the second gear, causing the second gear to move on the first gear in a direction away from the pressure plate.

[0016] In some embodiments, the abutting member is a abutting plate, which is arranged on the first gear. The outer dimensions of the abutting plate gradually decrease from the end close to the turntable to the end close to the first gear. The outer periphery of the abutting plate is provided with a protrusion protruding away from the center of the abutting plate, and the protrusion corresponds to the abutting position; a frustum member is provided at the end of the guide shaft away from the pressure plate, and the outer periphery of the frustum member abuts against the outer periphery of the abutting plate, the guide shaft is connected to the small-sized end of the frustum member, and the second gear is connected to the large-sized end of the frustum member.

[0017] In some embodiments, a non-slip layer is provided on a side of the pressure plate facing away from the elastic member.

[0018] A sandblasting system is also provided, comprising a sandblasting tube and the above-mentioned sandblasting fixture, wherein the sandblasting tube extends in the direction of the interval between the two rotating disks, and the sandblasting tube is provided with a plurality of nozzles, and the nozzles face the sandblasting fixture.

[0019] Beneficial effects of the present invention:

[0020] When performing sandblasting operations, it is only necessary to press the two ends of the polyurethane profile between the pressure plates on the two turntables, thereby stabilizing the polyurethane profile through the elastic member between the pressure plate and the turntable, and then drive the two turntables to rotate through the driving member, and the turntable will drive the guide shaft to rotate with it. During the rotation of the guide shaft, it will run on the first gear under the meshing action of the first gear, thereby driving the guide shaft to rotate, thereby driving the polyurethane profile stably squeezed by the pressure plate to rotate, and then during the sandblasting operation, multiple surfaces of the polyurethane profile can be sandblasted without rotating the polyurethane profile, thereby improving the efficiency of the sandblasting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of a sandblasting system of the present invention;

[0022] Figure 2 It is a schematic diagram of the sandblasting fixing device of the present invention for fixing polyurethane profiles;

[0023] Figure 3 It is a schematic diagram of the contact between the frustum part and the abutting part in the present invention;

[0024] Figure 4 It is a schematic diagram of the protruding central angle shown by the abutting part in the present invention.

[0025] In the figure:

[0026] 1. Frame body; 2. First gear; 3. First driving part; 4. Turntable; 5. Guide shaft; 6. Pressure plate; 7. Elastic part; 8. Second gear; 9. Rotating shaft; 91. Insertion protrusion; 10. Second driving part; 20. Abutting part; 201. Protruding part; 30. Frustum part; 40. Sandblasting pipe. Detailed implementation manners

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the convenience of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0028] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above the", and "on the" second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below the", and "under the" second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0030] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0031] like Figures 1 to 4 As shown, the present application provides a sandblasting fixture, which is used in the sandblasting operation of polyurethane profiles. It can be understood that it can also be used in the sandblasting or spraying operations of other profiles. The sandblasting fixture includes a frame 1 and a turntable 4. Two first gears 2 are arranged at intervals on the frame 1, and two turntables 4 are arranged at intervals between the two first gears 2. The two turntables 4 are both connected to the output end of the first driving member 3, and the first driving member 3 drives the two turntables 4 to rotate synchronously; guide shafts 5 are inserted into the two turntables 4 along their circumferential intervals, and a pressure plate 6 is arranged on the end of the guide shaft 5 on one of the turntables 4 facing the other turntable 4, and an elastic member 7 is arranged between the pressure plate 6 and the turntable 4 where the guide shaft 5 on which the pressure plate 6 is arranged is located, and a second gear 8 is arranged on the end of the guide shaft 5 away from the pressure plate 6, and the second gear 8 is meshed with the first gear 2. When the first driving member 3 drives the two turntables 4 to rotate, the guide shaft 5 rotates on the turntable 4.

[0032] When performing sandblasting operations, it is only necessary to press the two ends of the polyurethane profile between the pressure plates 6 on the two turntables 4, so that the polyurethane profile is stabilized by the elastic member 7 between the pressure plate 6 and the turntable 4, and then the two turntables 4 are driven to rotate by the first driving member 3, and the turntable 4 will drive the guide shaft 5 to rotate with it. During the rotation of the guide shaft 5, it will move on the first gear 2 under the meshing action of the second gear 8 and the first gear 2, thereby driving the guide shaft 5 to rotate, thereby driving the polyurethane profile that is stably squeezed by the pressure plate 6 to rotate, and then during the sandblasting operation, multiple surfaces of the polyurethane profile can be sandblasted without rotating the polyurethane profile, thereby improving the efficiency of the sandblasting operation.

[0033] In some embodiments, a non-slip layer is provided on the side of the pressure plate 6 facing away from the elastic member 7, so as to ensure stability when the polyurethane profile is pressed. For example, the non-slip layer can be, but is not limited to, a rubber layer.

[0034] In order to ensure the stability of the elastic member 7, in some embodiments, the turntable 4 is provided with a first through hole, the guide shaft 5 passes through the first through hole, and the guide shaft 5 is fixedly connected to the pressure plate 6. Figure 1 and Figure 2As shown, the elastic member 7 is a compression spring, which is sleeved on the guide shaft 5, and one end of the compression spring is connected to the turntable 4 or the pressure plate 6; or the two ends of the compression spring are transferred to the turntable 4 and the pressure plate 6, so that the stability of the elastic member 7 can be ensured during the extrusion of the polyurethane profile. It can be understood that in some alternative embodiments, multiple elastic members 7 can be provided, and multiple elastic members 7 are arranged around the circumference of the guide shaft 5, and the two ends of the elastic member 7 are respectively rotatably connected to the turntable 4 and the pressure plate 6. For example, a first shaft ring and a second shaft ring are provided on the turntable 4 or the pressure plate 6, and a ball is provided between the first shaft ring and the second shaft ring, so that the first shaft ring and the second shaft ring can rotate relative to each other. At this time, one of the first shaft ring and the second shaft ring can be fixed on the turntable 4 or the pressure plate 6, and the other can be connected to the elastic member 7, so as to achieve relative rotation between the elastic member 7 and the turntable 4 or between the elastic member 7 and the pressure plate 6.

[0035] like Figure 1 and Figure 2 As shown, in some embodiments, in order to drive the two turntables 4 to rotate synchronously, the first driving member 3 is arranged on the frame 1, and the output end of the first driving member 3 is provided with a rotating shaft 9, and the rotating shaft 9 passes through the two first gears 2 and the two turntables 4, so that the rotating shaft 9 is driven to rotate through the first driving member 3, and then the two turntables 4 are driven to rotate. Specifically, a second through hole is provided on the turntable 4, and the rotating shaft 9 passes through the second through hole; in order for the rotating shaft 9 to conveniently drive the turntable 4 to rotate; the rotating shaft 9 is provided with a plugging protrusion 91 extending along its axial direction, and the turntable 4 is provided with a plugging notch extending along the radial direction of the turntable 4, and the plugging notch is connected to the second through hole, so that when the rotating shaft 9 is plugged into the second through hole, the plugging protrusion 91 is plugged into the plugging notch, and then during the rotation process, the rotating shaft 9 applies force to the inner wall of the plugging notch through the plugging protrusion 91 to drive the rotation of the rotating shaft 9.

[0036] Furthermore, in order to adapt to polyurethane profiles of different lengths, the distance between the two turntables 4 is adjustable. Figure 1As shown, a second drive member 10 is provided on the frame 1, and the output end of the second drive member 10 is connected to one of the first gears 2. In the current embodiment, the second drive member 10 is connected to the first gear 2 away from the first drive member 3, and the output end of the second drive member 10 drives the first gear 2 to move along the axial direction of the rotating shaft 9, so that after the guide shaft 5 is extruded according to the length of different polyurethanes, the position of the second gear 8 on the guide shaft 5 is adjusted by the second drive member 10, so that the second gear 8 connected to the guide shaft 5 is always engaged with the first gear 2, so that the polyurethane profile can continue to rotate after adapting to the size. In order to make the adjustment more convenient, in some embodiments, the turntable 4 is connected to the first gear 2, and the turntable 4 can rotate relative to the first gear 2, and the rotating shaft 9 rotates on the first gear 2, so that when the second drive member 10 drives the first gear 2 to move, it can drive the first gear 2 to move along the axial direction of the rotating shaft 9, and adjust the size of the clamping space between the two turntables 4. Exemplarily, the second drive member 10 adopts an electric push rod.

[0037] like Figure 1 and Figure 3 As shown, in order to improve automation, in some embodiments, a push piece 20 is provided on the frame 1, and a push position is provided on the first gear 2. When the second gear 8 moves to the push position, the push piece 20 pushes against the second gear 8, so that the second gear 8 moves along the axial direction of the rotating shaft 9 in the direction away from the pressure plate 6, so that the second gear 8 can drive the two relative guide shafts 5 and the pressure plate 6 to move away from each other, thereby releasing the clamped polyurethane profile and allowing the polyurethane profile to detach; and when the second gear 8 passes the push position, the pressure plate 6 will return to its original position under the action of the elastic member 7, and then in the process of returning, it can re-clamp the polyurethane profile that needs to be sandblasted by cooperating with an external clamping hand or manual delivery, so as to achieve the purpose of automatic loosening and clamping, thereby improving automation.

[0038] Specifically, the abutting member 20 is an abutting plate, which is arranged on the side of the first gear 2 facing the rotating disk 4. In the current embodiment, the abutting plate is integrally formed with the first gear 2. The size of the abutting plate is larger than the size of the first gear 2. In addition, the outer dimensions of the abutting plate gradually decrease from the end close to the rotating disk 4 to the end close to the first gear 2. The outer periphery of the abutting plate is provided with a protrusion 201 protruding away from the center of the abutting plate. The protrusion 201 is an arc-shaped protrusion with a smooth transition, so that the cross section of the abutting plate is cam-shaped. The protrusion 201 is correspondingly arranged at the abutting position of the first gear 2. Correspondingly, a truncated table member 30 is arranged at the end of the guide shaft 5 away from the pressure plate 6. The guide shaft 5 is connected to the end of the truncated table member 30 with a small size, and the second gear 8 is connected to the end of the truncated table member 30 with a large size. In the current embodiment, the guide shaft 5, the truncated table member 30 and the second gear 8 are also integrally formed, and the circumferential surface of the truncated table member 30 abuts against the outer circumferential surface of the abutting plate.

[0039] Thus, after the pressing plate 6 clamps the polyurethane profile, the first driving member 3 drives the turntable 4 to rotate. The turntable 4 drives the second gear 8 to travel on the first gear 2. At the same time, the conical member 30 travels along the outer periphery of the abutting plate. When the second gear 8 travels to the abutting position, the conical member 30 travels to the protruding portion 201 of the abutting plate. The protruding portion 201 abuts against the conical member 30. Since the outer periphery of the protruding portion 201 is provided with an inclined surface, the protruding portion 201 can push the conical member 30 in the axial direction of the guide shaft 5 away from the pressing plate 6, so that the two opposite pressing plates 6 can move away from each other, and the clamped polyurethane profile can be separated. When the conical member 30 travels past the protruding portion 201, the second gear 8 can be reset to continue clamping a new polyurethane profile to be sandblasted, that is, the clamping and loosening operations can be realized during the non-stop process, improving the efficiency.

[0040] As Figure 4 shown, in the current embodiment, the central angle corresponding to the protruding portion 201 on the abutting plate is a, and the angle range of a is 60° - 90°. And the protruding portion 201 has a smooth transition, which can form a gradually transitional interval from loosening the polyurethane profile to re-clamping a new polyurethane profile, providing an operating space for the manipulator or manual reception and re-feeding of the polyurethane profile.

[0041] As Figure 1 shown, the present application further provides a sandblasting system, which includes a sandblasting pipe 40 and the above-mentioned sandblasting fixing device. The sandblasting pipe 40 is connected to an external sand supply device. The sandblasting pipe 40 extends along the direction in which the two turntables 4 are spaced apart and is located on one side of the sandblasting fixing device. The sandblasting pipe 40 has a plurality of spray nozzles, and the spray nozzles face the sandblasting fixing device to sandblast the polyurethane profile fixed by the sandblasting fixing device. In the current embodiment, the number of the sandblasting pipes 40 can be set to be multiple, and the multiple sandblasting pipes 40 are spaced along the circumferential direction of the turntable 4, so as to expand the sandblasting area. By adopting the above-mentioned sandblasting fixing device, the sandblasting system can flip the polyurethane profile during the sandblasting process, improving the sandblasting efficiency.

[0042] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Sandblasting fixing device, characterized in that, Comprising: A frame body (1) with two first gears (2) spaced apart thereon; Rotary discs (4), with two rotary discs (4) spaced between the two first gears (2), both of the two rotary discs (4) being connected to the output end of a first driving member (3), and the first driving member (3) driving the two rotary discs (4) to rotate synchronously; Guide shafts (5) are inserted at intervals along the circumferences of the two rotary discs (4). At one end of the guide shaft (5) on one rotary disc (4) facing the other rotary disc (4), a pressing disc (6) is provided. An elastic member (7) is provided between the pressing disc (6) and the rotary disc (4) where the pressing disc (6) is provided. At the end of the guide shaft (5) away from the pressing disc (6), a second gear (8) is provided, and the second gear (8) meshes with the first gear (2). When the first driving member (3) drives the two rotary discs (4) to rotate, the guide shaft (5) rotates on the rotary disc (4).

2. The sandblasting fixing device according to claim 1, characterized in that, The first driving member (3) is provided on the frame body (1). A rotating shaft (9) is provided at the output end of the first driving member (3). The rotating shaft (9) passes through the first gear (2) and the rotary disc (4), and the first driving member (3) drives the rotating shaft (9) to drive the rotary disc (4) to rotate.

3. The sandblasting fixing device according to claim 2, characterized in that, The rotating shaft (9) is provided with a plugging protrusion (91) extending along its axial direction, and the rotary disc (4) is provided with a plugging notch matching the plugging protrusion (91).

4. The sandblasting fixing device according to claim 2, wherein, The distance between the two rotary discs (4) is adjustable.

5. The sandblasting fixing device according to claim 4, wherein, A second driving member (10) is provided on the frame body (1). The output end of the second driving member (10) is connected to one of the first gears (2). The second driving member (10) drives the first gear (2) to move axially along the rotating shaft (9), and the rotary disc (4) is rotatably connected to the first gear (2).

6. The sandblasting fixing device according to any one of claims 1-5, characterized in that, The elastic member (7) is a compression spring sleeved on the guide shaft (5).

7. The sandblasting fixing device according to any one of claims 1-5, characterized in that, A resisting member (20) is provided on the frame body (1). A resisting position is provided on the first gear (2). When the second gear (8) travels to the resisting position, the resisting member (20) resists the second gear (8) to move the second gear (8) away from the pressing disc (6) on the first gear (2).

8. The sandblasting fixing device according to claim 7, wherein, The resisting member (20) is a resisting disc provided on the first gear (2). The outer contour dimension of the resisting disc gradually decreases from the end close to the rotary disc (4) to the end close to the first gear (2). A protruding portion (201) protruding away from the center of the resisting disc is provided on the outer circumference of the resisting disc, and the protruding portion (201) corresponds to the resisting position; a frustum member (30) is provided at the end of the guide shaft (5) away from the pressing disc (6). The outer circumference of the frustum member (30) abuts against the outer circumference of the resisting disc. The guide shaft (5) is connected to the small-sized end of the frustum member (30), and the second gear (8) is connected to the large-sized end of the frustum member (30).

9. The sandblasting fixing device according to any one of claims 1-5, characterized in that, A non-slip layer is provided on the side of the pressing disc (6) facing away from the elastic member (7).

10. Sandblasting system, characterized in that, It includes a sandblasting pipe (40) and the sandblasting fixing device according to any one of claims 1-9. The sandblasting pipe (40) extends along the direction in which the two turntables (4) are spaced apart. The sandblasting pipe (40) is provided with a plurality of nozzles, and the nozzles face the sandblasting fixing device.

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