A multi-tray, multi-level, and flexible conveying equipment

Abstract

The present invention discloses a multi-tray multi-stage spacing flexible conveying device, comprising a circular track and a tray running along the circular track, the circular track comprising a turning section and a straight section connecting the turning section, the straight section comprising straight working sections at both ends and a buffer section connecting the straight working sections, a first synchronous belt is arranged on the straight working section along the running direction of the tray, and the first synchronous belt is driven by a first motor; the tray comprises a top plate, a floating mechanism, a synchronous rack connected to the floating mechanism and a dial wheel are arranged below the top plate, the dial wheel is used to control the compression or extension of the floating mechanism, and the synchronous rack matches the first synchronous belt; a cam spacing device is arranged at the position where the tray leaves the turning section and enters the straight working section and the tray leaves the buffer section and enters the straight working section. The present invention can adapt to various spacing requirements, does not require repeated debugging, improves production efficiency, reduces labor costs, and better realizes the workpiece conveying function.

Description

Technical Field

[0001] The invention relates to the technical field of conveying equipment, and in particular to a multi-tray multi-stage spacing flexible conveying equipment. Background Art

[0002] The traditional multi-pallet positioning and conveying equipment is composed of an aluminum profile base. The pallet track is fixed on the base and moves. The pallet can move along the track. The track is a closed curve, generally a square, circular track, etc. The first synchronous pulley is set at the corner of the track. The first synchronous belt is fixed along the first synchronous belt pulley, and the pallets are fixed on the first synchronous belt at equal distances, so that multiple stations can work simultaneously in the working section. However, the relative position requirements of the first synchronous belt pulley and the track are relatively high, and the first synchronous belt must be tightened at the same time, which places high requirements on the design and requires more debugging work; and the pallet spacing is fixed. When the size of the product changes, the beat needs to be updated, and the pallet spacing changes, the first synchronous belt needs to be replaced at the same time. The first synchronous belt is a customized product with a pallet connector and cannot be reused, resulting in high cost and low utilization rate. Summary of the invention

[0003] In view of the above-mentioned technical problems, the purpose of the present invention is to provide a multi-tray multi-stage distance flexible conveying device, which can adjust the distance between pallets according to the product production rhythm and product size.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A multi-pallet multi-stage spacing flexible conveying device comprises an annular track and a pallet running along the annular track, wherein the annular track comprises a turning section and a straight section connecting the turning section, wherein the straight section comprises straight working sections at both ends and a buffer section connecting the straight working sections, wherein a first synchronous belt is arranged on the straight working section along the running direction of the pallet, and the first synchronous belt is driven by a first motor; the pallet comprises a top plate, and a floating mechanism, a synchronous rack connected to the floating mechanism and a dial wheel are arranged below the top plate, wherein the dial wheel is used to control the compression or extension of the floating mechanism, and the synchronous rack matches the first synchronous belt; a cam spacing device is arranged at the position where the pallet leaves the turning section and enters the straight working section and the position where the pallet leaves the buffer section and enters the straight working section, wherein the cam spacing device comprises a cam, a driving pulley, a driven pulley, a second motor and a second synchronous belt sleeved on the driving pulley and the driven pulley, wherein the driving pulley is driven by the second motor, and the cam is connected to the driven pulley and rotates synchronously with the driven pulley; when the pallet passes through the cam spacing device, the dial wheel abuts against the cam, and the dial wheel is toggled when the cam rotates.

[0006] Preferably, a plurality of V-shaped rollers are arranged below the top plate, and the V-shaped rollers are arranged on both sides of the annular track.

[0007] Preferably, round bars are provided on both sides of the straight section of the annular track along the running direction of the pallet, and the round bars are in contact with the V-grooves of the V-shaped rollers.

[0008] Preferably, protrusions are formed on both sides of the turning section of the annular track along the running direction of the pallet, and the protrusions are in contact with the V-grooves of the V-shaped rollers.

[0009] Preferably, the round bar is a chrome-plated round bar or a hard-oxidized aluminum bar.

[0010] Preferably, vertical first U-shaped rollers are provided at both ends of the turning section, a round belt is sleeved on the first U-shaped roller, and the round belt is driven to rotate by a second motor, and horizontal second U-shaped rollers are provided on both sides of the round belt, and the round belt is engaged in the U-shaped groove of the second U-shaped roller, and the second U-shaped roller is used to limit the position of the round belt so that the round belt is bent into an arc corresponding to the turning section, and the synchronous rack of the pallet contacts the round belt when the pallet passes through the turning section.

[0011] Preferably, the turning section comprises a main frame for accommodating the round belt, the main frame is provided with a plurality of vertical grooves on both sides of the round belt, and the second U-shaped roller is arranged in the grooves.

[0012] Preferably, vertical support wheels are provided at both ends of the cache section, a flat belt is sleeved on the support wheel, the flat belt is driven to rotate by a third motor, and the synchronous rack of the tray contacts the flat belt when the tray passes through the cache section.

[0013] Preferably, the first motor is a stepper motor or a servo motor.

[0014] Preferably, a sensor is arranged on the circular track, and a power supply track for supplying power to the sensor is arranged along the circular track.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0016] The multi-pallet multi-stage spacing flexible conveying equipment of the present invention comprises an annular track and pallets running along the annular track, the annular track comprises a turning section and a straight section connecting the turning section, the straight section comprises straight working sections at both ends and a buffer section connecting the straight working sections, the pallet is blocked by a cam on a cam spacing device when it leaves the turning section and enters the straight working section or when it leaves the buffer section and enters the straight working section, the cam spacing device pushes the pallet into the straight working section according to the beat setting, thereby realizing automatic spacing of the pallets, and there is no need to replace parts when the pallet spacing needs to be changed, thereby improving the utilization rate of the equipment, enabling it to adapt to various spacing requirements without repeated debugging, improving production efficiency, reducing labor costs, and better realizing the workpiece conveying function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the present invention is further described below in conjunction with the accompanying drawings:

[0018] Attached Figure 1 A three-dimensional diagram of a multi-tray, multi-stage, and spaced-apart flexible conveying device according to the present invention;

[0019] Attached Figure 2 It is a partial schematic diagram of a straight working section of the multi-tray multi-stage spacing flexible conveying device of the present invention;

[0020] Attached Figure 3 A three-dimensional diagram of a tray of the multi-tray multi-stage spacing flexible conveying device of the present invention;

[0021] Attached Figure 4 A three-dimensional view of a tray of the multi-tray multi-stage spacing flexible conveying device of the present invention from another angle;

[0022] Attached Figure 5 It is a schematic diagram of a turning section of a multi-tray multi-stage spacing flexible conveying device of the present invention;

[0023] Attached Figure 6 It is a cross-sectional view of a turning section of the multi-tray multi-stage spacing flexible conveying equipment of the present invention;

[0024] Attached Figure 7 A three-dimensional diagram of a cam spacing device of a multi-tray multi-stage spacing flexible conveying device of the present invention;

[0025] Attached Figure 8 A three-dimensional diagram of a buffer section of a multi-tray, multi-stage, and spacing flexible conveying device according to the present invention;

[0026] Attached Fig. 9 It is a schematic diagram of the contact between the cam and the thumbwheel of the multi-tray multi-stage spacing flexible conveying device of the present invention.

[0027] Wherein: 1. tray; 101. top plate; 102; floating mechanism; 103. synchronous rack; 104. dial wheel; 105. V-shaped roller; 2. turning section; 201. first U-shaped roller; 202. second U-shaped roller; 203. round belt; 204. third motor; 205. main frame; 206. raised part; 207. groove; 208. reducer; 3. straight line working section; 301. first synchronous belt; 302. first motor; 303. synchronous pulley; 4. buffer section; 401. support wheel; 402. flat belt; 403. fourth motor; 5. cam spacing device; 501. cam; 502. driving pulley; 503. driven pulley; 504. second motor; 505. second synchronous belt; 506. substrate; 6. round bar; 7. power supply track. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0029] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0030] As attached Figure 1 The multi-tray multi-stage spacing flexible conveying device of the present invention is shown, including a circular track and a tray 1 running along the circular track, the circular track includes a turning section 2 bent into a 180° arc and a straight section connecting the turning section 2, the straight section includes a straight working section 3 at both ends and a buffer section 4 connecting the straight working section 3. The straight working section 3 is a working area, when there are more than two straight working sections 3 on one side working at different speeds or different spacings, a buffer section 4 is required between the two straight working sections 3 to adjust the spacing between the trays 1. As shown in the attached figure Figure 2 As shown, a first synchronous belt 301 is installed on the straight working section 3 along the running direction of the tray 1, and the first synchronous belt 301 is sleeved on the synchronous pulleys 303 at both ends of the straight working section 3. The first motor 302 installed on the straight working section 3 drives the synchronous pulley 303 on one side to rotate, driving the first synchronous belt 301 to rotate synchronously. The first motor 302 is a stepping motor or a servo motor.

[0031] The tray 1 is used to carry the workpiece. Figure 3 , Attachment Figure 4As shown, the pallet 1 includes a horizontal top plate 101, and a floating mechanism 102, a synchronous rack 103 connected to the floating mechanism 102, and a dial wheel 104 are installed below the top plate 101. The dial wheel 104 is used to control the compression or extension of the floating mechanism 102 to drive the synchronous rack 103 to rise or fall synchronously. The synchronous rack 103 matches the first synchronous belt 301. When the pallet 1 runs on the straight working section 2, the synchronous rack 103 meshes with the synchronous teeth on the first synchronous belt 301, and the pallet 1 is driven forward by the first synchronous belt 301. Four V-shaped rollers 105 are also installed below the top plate 101. The V-shaped rollers 105 are distributed on both sides of the synchronous rack 103 in pairs. When running, they are arranged on both sides of the circular track and roll along the circular track to guide the pallet 1 to run. Round bars 6 are inlaid on both sides of the straight section of the circular track along the running direction of the pallet 1. The round bars 6 are in contact with the side of the V-shaped roller 105 close to the synchronous rack 103 and are stuck in the V-shaped groove of the V-shaped roller 105. The round bars 6 are chrome-plated round bars or hard-oxidized aluminum bars with wear-resistant surfaces and large bearing capacity, which play the role of carrying the pallet 1. Raised portions 206 are formed on both sides of the turning section 2 of the circular track along the running direction of the pallet. The raised portions 206 are in contact with the V-shaped groove of the V-shaped roller 105 to carry the pallet 1 for running.

[0032] Cam spacing devices 5 are installed at the positions where the tray 1 leaves the turning section 2 and enters the straight working section 3 and the positions where the tray 1 leaves the buffer section 4 and enters the straight working section 3. Figure 7 As shown, the cam spacing device 5 includes a cam 501, a driving pulley 502, a driven pulley 503, a second motor 504 and a second synchronous belt 505 sleeved on the driving pulley 502 and the driven pulley 503. The driving pulley 502 and the driven pulley 503 are installed on a base plate 506. The driving pulley 502 is driven to rotate by the second motor 504. The second synchronous belt 505 drives the driven pulley 503 to rotate. The cam 501 is installed on the other side of the base plate 506 corresponding to the driven pulley 503, and is connected to the driven pulley 503 and rotates synchronously. The cam spacing device 5 is installed on one side of the circular track. The thumbwheel 104 on the tray 1 extends outward perpendicular to the running direction of the synchronous rack 103. When the tray 1 passes through the cam spacing device 5, the thumbwheel 104 abuts against the cam 501, and is blocked by the cam 501 to stop moving forward and wait for the next instruction. The cam spacing device 5 is the key to the multi-stage spacing of the multi-tray multi-stage spacing flexible conveying equipment.

[0033] As attached Figure 5 , Attachment Figure 6As shown, vertical first U-shaped rollers 201 are installed at both ends of the turning section 2, and a round belt 203 is sleeved on the first U-shaped roller 201. A third motor 204 installed on one side of the turning section 2 drives the first U-shaped roller 201 to rotate through a reducer 208 to drive the round belt 203 to run. Horizontal second U-shaped rollers 202 are installed on both sides of the round belt 203. The round belt 203 is engaged in the U-shaped groove of the second U-shaped roller 202. The second U-shaped roller 202 is used to limit the position of the round belt 203 so that the round belt 203 remains bent into an arc corresponding to the turning section 2. The turning section 2 also includes a main frame 205 for accommodating the round belt 203. The main frame 205 is made of aluminum alloy profiles. A plurality of vertical grooves 207 are evenly arranged on both sides of the round belt 203, and the second U-shaped roller 202 is installed in the grooves 207. When the pallet 1 passes through the turning section 2 , the synchronous rack 103 of the pallet 1 contacts the round belt 203 , and the pallet 1 is driven to move by the friction force between the round belt 203 and the synchronous rack 103 .

[0034] As attached Figure 8 As shown, vertical support wheels 401 are installed at both ends of the buffer section 4, and flat belts 402 are sleeved on the two support wheels 401. The fourth motor 403 installed on one side of the buffer section 4 drives the support wheels 401 to rotate, driving the flat belt 402 to run. When the tray 1 passes through the buffer section 4, the synchronous rack 103 of the tray 1 contacts the flat belt 402, and the friction between the flat belt 402 and the synchronous rack 103 drives the tray 1 to run. When the tray 1 moves to the end of the buffer section 4, the cam spacing device 5 blocks the tray 1, and at this time, the flat belt 402 and the synchronous rack 103 slide relative to each other, waiting for the cam spacing device 5 to run further.

[0035] A sensor is installed on the circular track, and a power supply track 7 for providing 24V voltage to the sensor is installed along the circular track. The sensor can be set at any position of the power supply track 7 according to the use needs. The sensor can be used to detect the position of the tray 1 and can also be used to detect whether there is a workpiece on the tray.

[0036] Working principle: Pallet 1 runs along the circular track. When pallet 1 leaves the turning section 2 and enters the straight working section 3 or pallet 1 leaves the buffer section 4 and enters the straight working section 3, the thumbwheel 104 extended from pallet 1 is blocked by the cam 501 of the cam spacing device 5 installed next to the track and stops running. The cam 501 rotates and the thumbwheel 104 is toggled. The floating mechanism 102 connected to the thumbwheel 104 lifts the synchronous rack 103. In this process, pallet 1 is pushed forward by the cam 501 and moves to the straight working section 3. Then the cam 501 continues to rotate to drive the thumbwheel 104 to press the floating mechanism 102 down. The synchronous rack 103 of pallet 1 engages with the first synchronous belt 301 of the straight working section 3. After the engagement is completed, the straight working section 3 runs according to the beat and stops after the set distance. After the next pallet 1 engages with the first synchronous belt 301 in the same way, the first synchronous belt 301 of the straight working section 3 continues to run. Subsequent pallets 1 run according to this rule, thereby spacing the pallets 1.

[0037] The multi-tray multi-stage spacing flexible conveying equipment of the present invention realizes the automated spacing of the pallet 1, and can set the spacing distance according to the product production rhythm and product size. It has the advantages of high flexibility, easy expansion, and high precision in positioning of the pallet 1. When the spacing of the pallet 1 needs to be changed, there is no need to replace parts, which improves the utilization rate of the equipment, enables it to adapt to various spacing requirements, and does not require repeated debugging, thereby improving production efficiency, reducing labor costs, and better realizing the workpiece conveying function. The modular design is adopted, which is convenient for rapid installation and can save manpower and time; the segmented control method is adopted, and the communication between each segment adopts serial bus technology or network cable communication, which has the advantages of high reliability, small size, strong compilability, and good ease of use; the auxiliary positioning mechanism has a variety of precisions such as 0.1mm, 0.05mm and 0.02mm, which can be selected according to the needs of the working conditions. There are two methods: pallet side positioning method and horizontal lifting pallet plus side positioning composite positioning, and the positioning accuracy reaches ±0.05mm and ±0.02 respectively.

[0038] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-tray multi-level distance flexible conveying equipment, characterized in that: The invention comprises an annular track and a pallet running along the annular track, wherein the annular track comprises a turning section and a straight section connecting the turning section, wherein the straight section comprises straight working sections at both ends and a buffer section connecting the straight working sections, wherein a first synchronous belt is arranged on the straight working section along the running direction of the pallet, and the first synchronous belt is driven by a first motor; the pallet comprises a top plate, and a floating mechanism, a synchronous rack connected to the floating mechanism and a dial wheel are arranged below the top plate, wherein the dial wheel is used to control the compression or extension of the floating mechanism, and the synchronous rack matches the first synchronous belt; a cam spacing device is arranged at the position where the pallet leaves the turning section and enters the straight working section and at the position where the pallet leaves the buffer section and enters the straight working section, wherein the cam spacing device comprises a cam, a driving pulley, a driven pulley, a second motor and a second synchronous belt sleeved on the driving pulley and the driven pulley, wherein the driving pulley is driven by a second motor, and the cam is connected to the driven pulley and rotates synchronously with the driven pulley; when the pallet passes through the cam spacing device, the dial wheel abuts against the cam, and the dial wheel is toggled when the cam rotates.

2. The multi-tray multi-stage spacing flexible conveying equipment according to claim 1 is characterized in that: A plurality of V-shaped rollers are arranged below the top plate, and the V-shaped rollers are arranged on both sides of the annular track.

3. The multi-tray multi-stage spacing flexible conveying equipment according to claim 2 is characterized in that: Round bars are arranged on both sides of the straight section of the annular track along the running direction of the pallet, and the round bars are in contact with the V-shaped grooves of the V-shaped rollers.

4. The multi-tray multi-stage spacing flexible conveying equipment according to claim 2 is characterized in that: Both sides of the turning section of the annular track are formed with raised portions along the running direction of the pallet, and the raised portions are in contact with the V-shaped grooves of the V-shaped rollers.

5. The multi-tray multi-stage spacing flexible conveying equipment according to claim 3 is characterized in that: The round bar is a chrome-plated round bar or a hard-oxidized aluminum bar.

6. The multi-tray multi-stage spacing flexible conveying equipment according to claim 1 is characterized in that: Vertical first U-shaped rollers are provided at both ends of the turning section, a round belt is sleeved on the first U-shaped roller, and the round belt is driven to rotate by a second motor. Horizontal second U-shaped rollers are provided on both sides of the round belt, and the round belt is engaged in the U-shaped groove of the second U-shaped roller. The second U-shaped roller is used to limit the position of the round belt so that the round belt is bent into an arc corresponding to the turning section. When the pallet passes through the turning section, the synchronous rack of the pallet contacts the round belt.

7. The multi-tray multi-stage spacing flexible conveying equipment according to claim 6 is characterized in that: The turning section comprises a main frame for accommodating the round belt, the main frame is provided with a plurality of vertical grooves on both sides of the round belt, and the second U-shaped roller is arranged in the grooves.

8. The multi-tray multi-stage spacing flexible conveying equipment according to claim 1 is characterized in that: Vertical support wheels are provided at both ends of the cache section, and a flat belt is sleeved on the support wheel. The flat belt is driven to rotate by a third motor, and the synchronous rack of the tray contacts the flat belt when the tray passes through the cache section.

9. The multi-tray multi-stage spacing flexible conveying equipment according to claim 1 is characterized in that: The first motor is a stepper motor or a servo motor.

10. The multi-tray multi-stage distance flexible conveying equipment according to claim 1, characterized in that: A sensor is arranged on the annular track, and a power supply track for supplying power to the sensor is arranged along the annular track.

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