Vacuum pump suction cup suitable for loading and unloading vehicle

Abstract

The vacuum pump suction cup comprises a base plate, a valve plate installed at the lower end of the base plate and a disc plate arranged at the lower end of the valve plate, a flange is arranged at the upper end of the base plate, the base plate is connected with a mechanical arm through the flange, and the base plate, the valve plate and the disc plate are sequentially attached and fixedly arranged. An air cavity for guiding air is formed in the side, facing the valve plate, of the base plate, and a negative pressure air inlet communicated with the air cavity is formed in the corresponding position of the base plate. The device adopts the vacuum pump as a vacuum source, increases suction force, is small in size and does not need compressed air, the vacuum pump is connected with the energy storage module, the problem of no compressed air is solved, energy can be stored, and quick release can be achieved. A spring type check valve is adopted as a check valve part, side suction of the check valve is not prone to failure, a TPE suction cup with higher hardness is not prone to deformation, meanwhile, a cross beam is arranged to achieve a supporting effect, and side suction is more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a suction device technical field, concretely is a vacuum pump suction disc suitable for loading and unloading. BACKGROUND

[0002] At present, the degree of automation gradually improves, and the use of manpower is not only low in efficiency, but also has safety hazards when moving some heavy objects, and most working conditions are changed to automatic handling. In logistics transportation, loading and unloading of goods is quite time-consuming and labor-intensive, but due to the loading and unloading generally being outside, there are many problems in using the suction disc to grab, such as no compressed air supply, unable to use a negative pressure generator, and limited space inside the carriage, also unable to use a fan. When the suction disc is partially grabbed, air leakage occurs, thereby affecting the overall suction force, and therefore a vacuum pump suction disc suitable for loading and unloading is needed. SUMMARY

[0003] The technical problem solved by the utility model lies in providing a vacuum pump suction disc suitable for loading and unloading to solve the problems raised in the background.

[0004] The technical problem solved by the utility model is realized by the following technical scheme: a vacuum pump suction disc suitable for loading and unloading, comprising a base plate, a valve plate installed at the lower end of the base plate, and a disc plate provided at the lower end of the valve plate, wherein the upper end of the base plate is provided with a flange, and the flange is connected with a mechanical arm, the base plate, the valve plate, and the disc plate are sequentially and fixedly arranged, a gas cavity for guiding air is formed on the side of the base plate facing the valve plate, a negative pressure air inlet is provided at the corresponding position of the base plate and communicates with the gas cavity, the negative pressure air inlet is connected with a vacuum pump through an air pipe, a suction hole is distributed and installed on the valve plate, a check valve piece for controlling the opening and closing of the suction hole is arranged in the suction hole to avoid leakage during the suction process of the suction disc, a limiting plate for limiting the check valve piece is arranged on the disc plate, ring holes communicating with the suction holes are distributed and arranged on the limiting plate, and a suction disc is installed at the outer end of the ring holes.

[0005] As a further scheme of the utility model:

[0006] The suction hole is a stepped hole structure, the hole diameter of the upper end of the suction hole is smaller than the hole diameter of the lower end of the suction hole, the check valve piece comprises a spring installed at the upper end of the suction hole, a ball is elastically arranged at the lower end of the spring in the suction hole, the ball is abutted against the limiting plate, and the ball can block the suction hole during the rising process.

[0007] As a further scheme of the utility model:

[0008] The substrate side is provided with a partition plate separating the air cavity into two cavities, the outer ends of the two cavities are respectively provided with negative pressure air inlets, and the two cavities are provided with a guide plate for guiding airflow, so that the two cavities are respectively provided with air passages connected with the adsorption holes.

[0009] As a further scheme of the utility model:

[0010] A plurality of groups of optical fiber searchlights are distributed and mounted on the substrate, the optical fiber searchlights are vertically mounted on the substrate, and the substrate, the valve plate and the disc plate correspond to the optical fiber searchlights and are provided with corresponding through holes, the through holes are not communicated with the air cavity, the optical fiber searchlights pass through the through holes to detect the distance between the articles and the suction cups, the optical fiber searchlights are connected with the optical fiber amplifiers at the upper end of the substrate, and are connected with the equipment controller through the optical fiber amplifiers.

[0011] As a further scheme of the utility model:

[0012] The disc plate is provided with an extension plate on one side, the extension plate is of L-shaped structure, arc-shaped grooves are formed in the extension plate corresponding to the suction cups, a cross beam plate is adjustably mounted on the outer end of the extension plate, the cross beam plate is perpendicular to the disc plate, so that the cross beam plate supports the side suction box, the grasping posture is more regular, and the deformation amount of the suction cup is reduced; the cross beam plate is provided with a waist-shaped hole, and a bolt passes through the waist-shaped hole and is connected with the extension plate, so that the height of the cross beam plate can be adjusted by loosening and removing the bolt.

[0013] As a further scheme of the utility model:

[0014] The suction cup is made of TPE material, the TPE suction cup has the functions of buffering and is not easy to deform, and the stability of suction is improved.

[0015] As a further scheme of the utility model:

[0016] The vacuum pump is connected with a corrugated pipe, and negative pressure is delivered to the energy storage module through the corrugated pipe to store negative pressure, the energy storage module controls the opening and closing of two air paths by a direct-acting electromagnetic valve, negative pressure is transmitted from the energy storage module to the negative pressure air inlet through the opened path, and negative pressure is sequentially provided to the two cavities, the influence of small flow of the vacuum pump is reduced, and the two cavities can be controlled independently.

[0017] Compared with the prior art, the device uses a vacuum pump as a vacuum source, increases suction, is small in size, does not need compressed air, the vacuum pump is connected with an energy storage module, solves the problem of no compressed air, can store energy, and can be quickly released. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0019] Figure 2 is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0020] Figure 3 is a schematic diagram of the partial sectional structure of the utility model;

[0021] Figure 4 is a schematic diagram of the base plate structure of the utility model;

[0022] Figure 5 is Figure 3 an enlarged structure schematic diagram in A of the utility model;

[0023] Fig. 1, base plate;2, valve plate;3, disc plate;4, flange;5, suction cup;6, negative pressure detection switch;7, optical fiber searchlight;8, expansion plate;9, crossbeam plate;11, air cavity;12, negative pressure air inlet;13, partition plate;14, channel plate;21, adsorption hole;22, limit plate;23, ring hole;24, spring;25, ball;71, optical fiber amplifier;91, waist-shaped hole. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0025] As Figures 1-5 shown,

[0026] The embodiment provides a vacuum suction disc suitable for loading and unloading vehicles, which comprises a base plate 1, a valve plate 2 installed at the lower end of the base plate 1, and a disc plate 3 arranged at the lower end of the valve plate 2. The upper end of the base plate 1 is provided with a flange 4, and the flange 4 is connected with a mechanical arm. The base plate 1, the valve plate 2 and the disc plate 3 are sequentially and fixedly arranged. The side of the base plate 1 facing the valve plate 2 is provided with a gas cavity 11 for guiding gas. The base plate 1 is provided with a negative pressure air inlet 12 corresponding to the gas cavity 11. The negative pressure air inlet 12 is connected with a vacuum pump through a gas pipe. The valve plate 2 is provided with suction holes 21. The suction holes 21 are provided with check valve elements for controlling opening and closing, so as to avoid leakage of the suction disc 5 in the suction process. The disc plate 3 is provided with a limiting plate 22 for limiting the check valve elements. The limiting plate 22 is provided with ring holes 23 communicating with the suction holes 21. The disc plate 3 is provided with the suction disc 5 at the outer end of the ring holes 23.

[0027] In the embodiment, the suction hole 21 is a stepped hole structure, and the hole diameter of the upper end of the suction hole 21 is smaller than the hole diameter of the lower end of the suction hole 21. The check valve element comprises a spring 24 installed at the upper end of the suction hole 21, and a ball 25 elastically arranged at the lower end of the spring 24 in the suction hole 21. The ball 25 is arranged against the limiting plate 22, and the ball 25 can block the suction hole 21 in the lifting process. The device adopts the spring 24 type check valve, which is different from the traditional gravity type check valve. The spring 24 type check valve relies on the elastic force of the spring 24 to resist the pressure difference between the inside and outside of the cavity of the suction disc 5. In the position where the suction disc 5 does not suck the product, the pressure difference continuously generates the spring 24 elastic force, causes the ball 25 to rise and block the suction hole 21, and prevents the negative pressure from leaking. The advantage of the scheme is that the check valve relies on the elastic force, and side suction and reverse suction will not be a problem. In the side suction and reverse suction working condition, only the ball 25 can directly block the suction hole 21, so as to avoid air leakage.

[0028] In the embodiment, the base plate 1 is provided with a partition plate 13 for separating the gas cavity 11 into two cavities. The outer ends of the two cavities are respectively provided with negative pressure air inlets 12. The two cavities are respectively provided with channel plates 14 for guiding air flow, so that the two cavities are respectively provided with air channels connected with the suction holes 21. The base plate 1 is respectively provided with negative pressure detection switches 6 for detecting the two cavities, so as to detect the pressures of the two cavities.

[0029] A plurality of groups of optical fiber probes 7 are arranged on the base plate 1. The optical fiber probes 7 are vertically arranged on the base plate 1. The base plate 1, the valve plate 2 and the disc plate 3 are respectively provided with corresponding through holes corresponding to the optical fiber probes 7. The through holes are not communicated with the gas cavity 11. The optical fiber probes 7 pass through the through holes to detect the distance between the articles and the suction disc 5. The optical fiber probes 7 are connected with an optical fiber amplifier 71 at the upper end of the base plate 1, and are connected with an equipment controller through the optical fiber amplifier 71.

[0030] In this embodiment, in the loading and unloading project, side suction is often needed, and the deformation amount of the suction cup 5 is large in the side suction process, which reduces the stability of suction, in order to further improve the stability, one side of the disc plate 3 is provided with a expansion plate 8, the expansion plate 8 is of L-shaped structure, and the expansion plate 8 is provided with an arc-shaped groove corresponding to the distribution of the suction cup 5, and the outer end of the expansion plate 8 is adjustably provided with a cross beam plate 9, and the cross beam plate 9 is arranged vertically to the disc plate 3, so that the cross beam plate 9 supports the side suction box, so that the grasping posture is more regular, and the deformation amount of the suction cup 5 can be reduced; the waist-shaped hole 91 is arranged on the cross beam plate 9, and the bolt passes through the waist-shaped hole and is connected with the expansion plate 8, and the height of the cross beam plate 9 can be adjusted by loosening the bolt.

[0031] In this embodiment, the suction cup 5 is made of TPE material, and the TPE suction cup 5 has the functions of buffering and deformation resistance, thereby improving the stability of suction.

[0032] In this embodiment, the vacuum pump is connected with a bellows, and negative pressure is delivered to the energy storage module through the bellows to store negative pressure, and the energy storage module controls the opening and closing of two gas paths by a direct-acting electromagnetic valve, and the negative pressure is transmitted from the energy storage module to the negative pressure inlet 12 through the opened path, and negative pressure is sequentially provided to the two cavities, thereby reducing the influence of small flow of the vacuum pump, and the two cavities can be controlled independently.

[0033] The working principle of the utility model is as follows: negative pressure is generated by a vacuum pump, and the negative pressure is delivered to an energy storage module through a bellows, the energy storage module controls the opening and closing of two gas paths by a direct-acting electromagnetic valve, and the negative pressure is transmitted from the energy storage module to the negative pressure inlet 12 through the opened path, and negative pressure is transmitted to the TPE suction cup 5 through the gas passage and the adsorption hole 21, so as to generate suction force in the TPE suction cup 5 to suck the object.

[0034] When there is no object in the suction cup 5, the negative pressure is transmitted to the upper side of the check valve ball 25 through the adsorption hole 21, and a pressure difference is generated between the upper side of the check valve ball 25 and the lower side of the check valve ball 25 and the external atmospheric pressure, the acting force is the product of the pressure difference and the cross-sectional area of the ball 25, and the acting force is greater than the sum of the weight of the ball 25 and the elastic force of the spring 24, so that the ball 25 is pushed to the adsorption hole 21, and the adsorption hole 21 is blocked, thereby preventing the negative pressure from leaking.

[0035] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents. It should be noted that in this document, if there are relationship terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

Claims

1. A vacuum suction cup suitable for loading and unloading vehicles, comprising a base plate (1) and a valve plate (2) mounted at the lower end of the base plate (1), a disc plate (3) arranged at the lower end of the valve plate (2), the upper end of the base plate (1) being provided with a flange (4) and being connected to a mechanical arm through the flange (4), characterized in that: The substrate (1), valve plate (2) and disc plate (3) are sequentially fixedly arranged, the substrate (1) is provided with a gas cavity (11) for guiding gas on the side facing the valve plate (2), the substrate (1) is provided with a negative pressure air inlet (12) corresponding to the gas cavity (11), the negative pressure air inlet (12) is connected with a vacuum pump through an air pipe, the valve plate (2) is provided with suction holes (21) distributed and installed thereon, the suction holes (21) are provided with check valve members for controlling opening and closing, so as to avoid leakage of the suction disc (5) during the suction process, the disc plate (3) is provided with a limiting plate (22) for limiting the check valve members, the limiting plate (22) is provided with ring holes (23) corresponding to the suction holes (21) and distributed thereon, and the suction disc (5) is installed on the outer end of the ring hole (23) of the disc plate (3).

2. A vacuum suction cup suitable for use in loading and unloading vehicles according to claim 1, characterised in that: The suction hole (21) is a stepped hole structure, the upper end hole diameter of the suction hole (21) is smaller than the lower end hole diameter of the suction hole (21), the check valve member comprises a spring (24) installed on the upper end of the suction hole (21), and a ball (25) is elastically arranged at the lower end of the spring (24) in the suction hole (21), the ball (25) abuts against the limiting plate (22), and the ball (25) can block the suction hole (21) during the rising process.

3. A vacuum suction cup suitable for use in loading and unloading vehicles according to claim 1, characterised in that: The substrate (1) is provided with a partition plate (13) for separating the gas cavity (11) into two cavities, the outer ends of the two cavities are respectively provided with negative pressure air inlets (12), and the two cavities are respectively provided with channel plates (14) for guiding air flow, so that the two cavities are respectively provided with air channels connected with the suction holes (21), and the substrate (1) is respectively provided with negative pressure detection switches (6) for detecting the two cavities, so as to detect the pressures of the two cavities.

4. A vacuum suction cup suitable for use in loading and unloading vehicles according to claim 3, characterised in that: A plurality of groups of optical fiber probes (7) are distributed and installed on the substrate (1), the optical fiber probes (7) are vertically installed on the substrate (1), the substrate (1), the valve plate (2) and the disc plate (3) are provided with corresponding through holes corresponding to the optical fiber probes (7), the through holes are not communicated with the gas cavity (11), the optical fiber probes (7) pass through the through holes to detect the distance between the articles and the suction disc (5), the optical fiber probes (7) are connected with optical fiber amplifiers (71) on the upper end of the substrate (1), and the optical fiber amplifiers (71) are connected with the equipment controller.

5. A vacuum suction cup for use in loading and unloading vehicles as claimed in claim 1, characterized in that: A development plate (8) is installed on one side of the disc plate (3), the development plate (8) is in L-shaped structure, arc-shaped grooves are distributed and arranged on the development plate (8) corresponding to the suction disc (5), a cross beam plate (9) is adjustably installed on the outer end of the development plate (8), the cross beam plate (9) is perpendicular to the disc plate (3), so as to support a box body to be sucked through the cross beam plate (9), and the cross beam plate (9) is provided with waist-shaped holes (91) distributed thereon, and bolts pass through the waist-shaped holes and are connected with the development plate (8), so that the height of the cross beam plate (9) can be adjusted by loosening and removing the bolts.

6. A vacuum suction cup suitable for use in loading and unloading vehicles according to claim 1, characterized in that: The suction disc (5) is made of TPE material.

7. A vacuum suction cup suitable for use in loading and unloading vehicles according to claim 1, characterized in that: The vacuum pump is connected with a corrugated pipe, and the negative pressure is delivered to an energy storage module through the corrugated pipe to store the negative pressure.

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