Sand amount adjusting device and sand blasting machine

Abstract

The utility model discloses a sand amount adjusting device and a sand blasting machine. The sand amount adjusting device comprises a sand collecting hopper and an adjusting rod, a sand outlet pipe and an adjusting pipe which are oppositely arranged are arranged on the sand collecting hopper; the adjusting rod is provided with a connecting part and an adjusting part, the connecting part is movably arranged on the adjusting pipe, and the diameter of the adjusting part is gradually reduced in the direction from the adjusting pipe to the sand outlet pipe; the distance of the adjusting part extending into the sand outlet pipe is changed so as to adjust the sand outlet amount; by means of the structure, the quantity of sand grains conveyed to the sand blasting gun can be adjusted, the sand blasting requirements of different workpieces are met, the sand blasting quality can be improved, and very good practicability is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand blasting machine field, especially in a sand amount adjusting device and sand blasting machine. BACKGROUND

[0002] The sand blasting machine is a kind of mechanical cleaning equipment using gas power to transport sand particles to work, and it has very important application in various fields;In the sand blasting machine, sand particles are provided to sand blasting gun by sand supply mechanism, and sand particles are transported to sand supply mechanism again by recycling system after use, to realize the circulation of sand particles.

[0003] But in the existing sand blasting machine, such as the sand blasting machine provided with gas distribution bin and sand distribution bin disclosed in Chinese patent application No.2024107900762, sand distribution bin is installed on rotating seat and is connected to external sand source, sand blasting gun is installed on rotating seat and is communicated with gas distribution bin through first pipeline and is communicated with sand distribution bin through second pipeline;In the sand blasting machine, sand supply amount completely relies on the gravity natural drop of sand particles, and the amount of sand particles provided to sand blasting gun cannot be controlled according to the actual sand blasting demand of workpiece, which is not conducive to the improvement of sand blasting quality;Therefore, a sand amount adjusting device and sand blasting machine are needed to solve the above problems. SUMMARY

[0004] The utility model aims at at least one of the technical problems existing in prior art is solved. Therefore, the utility model provides a sand amount adjusting device and sand blasting machine.

[0005] The technical scheme adopted by one embodiment of the utility model to solve its technical problem is as follows: a sand amount adjusting device, including sand collecting hopper and adjusting rod;

[0006] Sand collecting hopper is provided with sand outlet pipe and adjusting pipe arranged oppositely;

[0007] Adjusting rod has connecting part and adjusting part, connecting part is movably arranged on adjusting pipe, and the diameter of adjusting part gradually decreases along the direction from adjusting pipe to sand outlet pipe;

[0008] The distance of adjusting part extending into sand outlet pipe is changed to adjust sand outlet amount.

[0009] Limiting assembly is arranged on adjusting pipe to limit the axial movement of adjusting rod on adjusting pipe.

[0010] As one of the preferred embodiments of the utility model, limiting assembly includes screw rod and knob handle connected with one end of screw rod, adjusting pipe is provided with threaded hole, and the other end of screw rod is arranged in threaded hole and abuts against adjusting rod.

[0011] As one of preferred embodiments of the utility model, the lower end of the sand collecting hopper is provided with a sand discharging port, and further comprises a cover plate connected with the sand collecting hopper through a rotating assembly at one end and connected with the sand collecting hopper through a locking assembly at the other end, the cover plate being used for closing the sand discharging port.

[0012] As one of preferred embodiments of the utility model, the rotating assembly is provided as a hinge.

[0013] As one of preferred embodiments of the utility model, the locking assembly is provided as a quick clamp.

[0014] As one of preferred embodiments of the utility model, the upper part of the sand collecting hopper is provided with a sand overflowing port, and the sand discharging pipe is provided with a backflow port communicated with the sand overflowing port.

[0015] As one of preferred embodiments of the utility model, the connecting part is made of a rigid material and has a diameter matched with the inner diameter of the adjusting pipe.

[0016] As one of preferred embodiments of the utility model, at least the outer layer of the connecting part is made of an elastic material and is in interference fit with the adjusting pipe.

[0017] A sand blasting machine comprising the sand amount adjusting device.

[0018] The sand amount adjusting device and the sand blasting machine have the following advantages: the sand amount adjusting device comprises a sand collecting hopper and an adjusting rod; the sand collecting hopper is provided with a sand discharging pipe and an adjusting pipe arranged oppositely; the adjusting rod has a connecting part and an adjusting part, the connecting part is movably arranged on the adjusting pipe, and the diameter of the adjusting part gradually decreases along the direction from the adjusting pipe to the sand discharging pipe; the distance of the adjusting part extending into the sand discharging pipe is changed to adjust the sand discharging amount; the above structure can adjust the amount of sand particles conveyed to the sand blasting gun, meet the sand blasting requirements of different workpieces, improve the sand blasting quality, and has very good practicability. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0020] Figure 1 FIG. 1 is a structural schematic view of a sand amount adjusting device;

[0021] Figure 2 FIG. 2 is a sectional view of the sand amount adjusting device; Figure 1 FIG. 3 is a local enlarged view of area A in FIG. 2;

[0022] Figure 3 FIG. 4 is a local enlarged view of area B in FIG. 2.

[0023] Figure 4 FIG. 5 is a sectional view of the sand amount adjusting device; Figure 3 DETAILED DESCRIPTION ​

[0024] The detailed description of the embodiments of the present application will be described in this part, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0025] In the description of the present application, the meaning of multiple is more than two, greater than, less than, more than, etc. is not included in the number, above, below, within, etc. is included in the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0026] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and is not indicative or implied that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the present application.

[0027] In the present application, unless otherwise specified, the words "set", "install", "connect" and the like should be broadly understood, for example, they can be directly connected, or indirectly connected through an intermediate medium; can be fixedly connected, or can be detachably connected, or can be integrally formed; can be mechanically connected; can be the internal communication of two elements or the interaction relationship between two elements. The skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0028] Referring to Figures 1 to 4 The present application provides a sand amount adjusting device, which comprises a sand collecting hopper 10 and an adjusting rod 20.

[0029] The sand collecting hopper 10 is provided with a sand outlet pipe 11 and an adjusting pipe 12 arranged oppositely;

[0030] The adjusting rod 20 has a connecting part 21 and an adjusting part 22, the connecting part 21 is movably arranged on the adjusting pipe 12, and the diameter of the adjusting part 22 gradually decreases along the direction from the adjusting pipe 12 to the sand outlet pipe 11;

[0031] The distance of the adjusting part 22 extending into the sand outlet pipe 11 is changed to adjust the sand amount.

[0032] In the utility model, sand amount adjusting device is applied to sand blasting machine, specifically, is connected between sand supply mechanism and sand blasting gun, wherein, sand supply mechanism transports the recycled sand particles to sand collecting hopper 10, sand outlet pipe 11 is directly or indirectly connected to sand blasting gun through pipeline, and then sand blasting gun is transported sand particles, further, sand collecting hopper 10 is inverted cone, sand outlet pipe 11 and adjusting pipe 12 are located at the bottom of sand collecting hopper 10, sand particles are gathered at the bottom of sand collecting hopper 10, and are discharged from sand outlet pipe 11, when the sand supply amount needs to be increased, then drive adjusting rod 20 away from sand outlet pipe 11, so that the distance of adjusting portion 22 of adjusting rod 20 inserted into sand outlet pipe 11 reduces, because the diameter of adjusting portion 22 gradually reduces along the direction from adjusting pipe 12 to sand outlet pipe 11, the distance between the outer wall surface of adjusting portion 22 and sand outlet pipe 11 will increase, more sand particles enter sand outlet pipe 11 through the gap between them and are discharged, when the sand supply amount needs to be reduced, then drive adjusting rod 20 close to sand outlet pipe 11, so that the distance of adjusting portion 22 of adjusting rod 20 inserted into sand outlet pipe 11 increases, because the diameter of adjusting portion 22 gradually reduces along the direction from adjusting pipe 12 to sand outlet pipe 11, the distance between the outer wall surface of adjusting portion 22 and sand outlet pipe 11 will reduce, less sand particles enter sand outlet pipe 11 through the gap between them and are discharged, the utility model has the advantages that: the above-mentioned structure can adjust the sand particle amount transported to sand blasting gun, meet the sand blasting demand of different workpieces, is favorable for improving sand blasting quality, has very good practicality.

[0033] Referring to Figures 1-4 In some embodiments, the adjusting pipe 12 is provided with a limiting assembly 30 for limiting the axial movement of the adjusting rod 20 on the adjusting pipe 12; as a preferred embodiment of the limiting assembly 30, the limiting assembly 30 includes a screw rod 31 and a knob handle 32 connected to one end of the screw rod 31, the adjusting pipe 12 is provided with a threaded hole, the other end of the screw rod 31 is arranged in the threaded hole and abuts against the adjusting rod 20; this arrangement can limit the position of the adjusting rod 20 in the adjusting pipe 12 when the adjusting rod 20 is adjusted in place, avoiding the loosening of the adjusting rod 20 affecting the adjusting effect.

[0034] Referring to Figures 1-4 In some embodiments, the lower end of the sand collecting hopper 10 is provided with a sand outlet 13, and further includes a cover plate 50 connected to the sand collecting hopper 10 through a rotating assembly at one end and connected to the sand collecting hopper 10 through a locking assembly 40 at the other end, the cover plate 50 is used for closing the sand outlet 13; as a preferred embodiment of the rotating assembly, the rotating assembly is set as a hinge; as a preferred embodiment of the locking assembly 40, the locking assembly 40 is set as a quick clamp; this arrangement can quickly discharge the sand particles in the sand collecting hopper 10, facilitating equipment maintenance.

[0035] Referring to Figures 1-4In some embodiments, the upper part of the sand collecting hopper 10 is provided with an overflow sand outlet 14, and the sand outlet pipe 11 is provided with a backflow outlet 15 communicating with the overflow sand outlet 14, so that when too much sand particles are accumulated in the sand collecting hopper 10, the sand particles can be transported to the backflow outlet 15 through the pipeline and then backflow to the cabin of the sand blasting machine through the sand outlet pipe 11.

[0036] As a first embodiment of the cooperation between the connecting part 21 and the adjusting pipe 12, the connecting part 21 is made of a hard material and has a diameter matching the inner diameter of the adjusting pipe 12. It should be noted that the gap between the connecting part 21 and the adjusting pipe 12 should be smaller than the diameter of the sand particles, so as to avoid the sand particles entering the gap between the connecting part 21 and the adjusting pipe 12 and causing leakage or affecting the movement of the adjusting rod 20 in the adjusting pipe 12.

[0037] As a second embodiment of the cooperation between the connecting part 21 and the adjusting pipe 12, at least the outer layer of the connecting part 21 is made of an elastic material and is in interference fit with the adjusting pipe 12.

[0038] The utility model also provides a sand blasting machine which comprises the sand amount adjusting device.

[0039] Of course, the utility model is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the utility model. These equivalent modifications and replacements are all included in the range defined by the claims of the present application.

Claims

1. A sand quantity regulating device, characterized in that: Includes a sand collection hopper (10) and an adjusting rod (20); The sand collecting hopper (10) is provided with sand discharge pipe (11) and regulating pipe (12) arranged opposite to each other; The adjusting rod (20) has a connecting part (21) and an adjusting part (22). The connecting part (21) is movably disposed on the adjusting pipe (12). The diameter of the adjusting part (22) gradually decreases along the direction from the adjusting pipe (12) to the sand outlet pipe (11). The distance from which the adjustment part (22) extends into the sand outlet pipe (11) is changed to adjust the sand output.

2. The sand quantity regulating device according to claim 1, characterized in that: A limit assembly (30) is provided on the regulating tube (12) to limit the axial movement of the regulating rod (20) on the regulating tube (12).

3. The sand quantity regulating device according to claim 2, characterized in that: The limiting component (30) includes a screw (31) and a knob handle (32) connected to one end of the screw (31). The adjusting tube (12) is provided with a threaded hole, and the other end of the screw (31) passes through the threaded hole and abuts against the adjusting rod (20).

4. The sand quantity regulating device according to claim 1, characterized in that: The lower end of the sand collecting hopper (10) is provided with a sand discharge port (13), and also includes a cover plate (50) with one end connected to the sand collecting hopper (10) via a rotating component and the other end connected to the sand collecting hopper (10) via a locking component (40). The cover plate (50) is used to close the sand discharge port (13).

5. The sand quantity regulating device according to claim 4, characterized in that: The rotating component is configured as a hinge.

6. The sand quantity regulating device according to claim 4, characterized in that: The locking component (40) is configured as a quick clamp.

7. The sand quantity regulating device according to claim 1, characterized in that: The upper part of the sand collecting hopper (10) is provided with an overflow port (14), and the sand outlet pipe (11) is provided with a return port (15) that communicates with the overflow port (14).

8. The sand quantity regulating device according to claim 1, characterized in that: The connecting part (21) is made of a rigid material and its diameter is adapted to the inner diameter of the regulating tube (12).

9. The sand quantity regulating device according to claim 1, characterized in that: At least the outer layer of the connecting part (21) is made of an elastic material and is press-fitted with the regulating tube (12).

10. A sandblasting machine, characterized in that: Includes the sand quantity adjustment device as described in any one of claims 1-9.

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