Full-automatic sand washing testing device

Abstract

A full-automatic sand washing testing device comprises a sand washing mechanism, a feeding mechanism and a control system, the sand washing mechanism comprises a sand shakeout hopper, the sand shakeout hopper is vertically arranged on the right side of the feeding mechanism through a fixing frame, the sand shakeout hopper is composed of a sand storage barrel and a sand washing pipe, a cover plate is arranged at an opening in the lower end of the sand storage barrel, and a first air cylinder for driving the cover plate to move left and right is arranged on the fixing frame; a supporting plate for fixing a tape is obliquely arranged below the sand washing pipe, the feeding mechanism comprises a feeding plate, a driving mechanism and a limiting mechanism, a sand hopper is fixed to the feeding plate, when the feeding plate is located at the lower limit position, the sand hopper is in a material receiving state, carborundum falls into the sand hopper along the supporting plate after sand washing, and when the feeding plate is located at the upper limit position, the sand hopper is in a feeding state; and carborundum in the sand hopper is poured into the shakeout hopper. The device is simple and reasonable in structure, convenient to operate, accurate in test, high in efficiency, low in cost and capable of effectively solving the problems of high working intensity, high personal error and low working efficiency of manual operation and reducing labor intensity, and automatic test can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of sand blasting tests for steel tape measures and relates to a full-automatic sand blasting test device. Background Art

[0002] According to the steel tape measure industry standard QB / T2443-2011, the coating of the tape is required to be 20 # The diamond abrasive continuous blasting test shows that the scale lines and characters are not eroded or peeled off after the test. Figure 1 As shown, the sand blasting test device includes a sand storage cylinder 11, a sand blasting tube 12, a tape fixing base plate 14, a tape fixing block 15 and a sand accumulation tray 16. Specifically, the tape 13 is fixed on the tape fixing base plate 14 with an inclination of 45 degrees, 25 mm away from the nozzle of the sand blasting tube 12, and a 20 # During the sandblasting test, manual feeding is required, and after the test, the corundum needs to be weighed manually. In the actual test process, this manual sandblasting method has the following defects:

[0003] 1. The feeding of diamond abrasives needs to be completed by testers, and when the tape coating is broken, the test stops and the falling sand needs to be weighed manually. The labor intensity is high and the work efficiency is low. It requires 2-3 testers to complete the test, and the test cost is high.

[0004] 2. Most corundum exists in granular form, but it cannot be ruled out that it may contain powdered particles. If the powder is inhaled by the tester during the test, it will be harmful to the tester's health.

[0005] 3. The corundum used in the experiment was not reused, resulting in increased test costs;

[0006] 4. Since it is a manual operation, human factors will cause measurement errors and affect the test accuracy.

[0007] Therefore, it is necessary to develop a fully automatic sand blasting test device that can effectively reduce the workload of testers and improve work efficiency and test accuracy. Utility Model Content

[0008] The technical problem to be solved by the present invention is to provide a fully automatic sand washing test device with simple structure and convenient operation in response to the above technical status quo, which can effectively reduce labor intensity, improve work efficiency and test accuracy.

[0009] The technical solution adopted by the utility model to solve the above technical problems is: a fully automatic sand blasting test device, characterized in that: the fully automatic sand blasting test device includes a sand blasting mechanism, a feeding mechanism and a control system, the sand blasting mechanism includes a sand falling hopper, which is vertically arranged on the right side of the feeding mechanism through a fixed frame, and the sand falling hopper is composed of a sand storage cylinder and a sand blasting pipe, and a cover plate that can be moved left and right to open or close the opening is provided at the lower end opening of the sand storage cylinder, and a first cylinder that drives the cover plate to move left and right is provided on the fixed frame, and a support plate for fixing a ruler tape is provided at an angle below the sand blasting pipe, the feeding mechanism includes a feeding plate, a driving mechanism that drives the feeding plate to move up and down, and a limiting mechanism for limiting the upward and downward movement of the feeding plate, and a sand hopper is fixed on the feeding plate. When the feeding plate is at the lower limit position, the sand hopper is in a material receiving state, and the corundum sand completed by sand blasting falls into the sand hopper along the inclined surface of the supporting plate; when the feeding plate is at the upper limit position, the sand hopper is in a feeding state, and the corundum sand in the sand hopper is poured into the sand falling hopper.

[0010] As an improvement, the fixing frame is vertically arranged on the base, and the fixing frame is provided with upper and lower clamping members for clamping and fixing the sand flushing pipe. The first cylinder is horizontally installed on the top of the fixing frame, and the left side of the cover plate is provided with a folded edge that folds downward, and a mounting hole is opened on the folded edge. The head of the first cylinder is provided with a screw corresponding to the mounting hole, and the cover plate is sleeved on the screw through the folded edge and fixed to the screw through a nut.

[0011] Furthermore, the support plate is installed on the right side of the fixed frame through a triangular bracket and is located directly below the sand dropout hopper. A magnet is embedded in the middle of the upper end surface of the support plate. The ruler tape is set on the support plate and fixed by the adsorption of the magnet. A sand receiving plate that can extend outward and connect with the sand hopper is provided at the lower end of the support plate. A second cylinder is provided on the lower end surface of the support plate for driving the sand receiving plate to extend and retract.

[0012] Furthermore, a camera for observing changes in the surface of the tape is installed above the support plate.

[0013] Furthermore, the feeding mechanism also includes a feeding rack, which is vertically arranged on the base and located on the left side of the fixed frame. A track is installed on the outer side of the feeding rack for the feeding plate to be placed in and slide up and down. The track is vertically arranged close to the right side of the feeding rack and the upper end is a semicircle bent to the right. The driving mechanism includes a motor and a feeding belt. The feeding belt is installed on the feeding rack and is parallel to the vertical section of the track. The feeding belt is connected to the feeding plate in a transmission manner. When the feeding plate is at the lower limit position, the sand hopper is in a material receiving state, and the second cylinder drives the sand receiving plate to move downward and connect with the sand hopper. When the feeding plate is at the upper limit position, the sand hopper is located above the sand falling hopper and is in a feeding state.

[0014] Furthermore, the feed plate is strip-shaped, and the length of the feed plate corresponds to the diameter of the semicircular track at the upper end of the track. Pulleys that cooperate with the track are installed at the upper and lower ends of the feed plate. The feed plate can be moved up and down on the track through the pulley, and the sand bucket is fixed to the middle and lower part of the outer side of the feed plate by screws.

[0015] Furthermore, the motor is a servo motor, which is installed on the base and located on the outside of the feed rack. Sprockets for driving the conveyor belt are installed at the upper and lower ends of the feed rack respectively. The output end of the motor is provided with an output wheel which is connected to the sprocket at the lower end of the feed rack. A pulley is connected to the side of the transmission belt close to the feed plate. The pulley is set in the track below the lower pulley of the feed plate, and the pulley is connected to the lower pulley through a connecting plate.

[0016] Furthermore, the limit mechanism is arranged on the feeding rack, including an upper limit sensor and a lower limit sensor. When the feeding plate moves up to the upper limit position, the feeding plate is located on a semicircular track and the inclination angle is greater than 90°.

[0017] Furthermore, the upper limit sensor and the lower limit sensor are proximity switches or displacement sensors, and the inclination angle of the feeding plate is 95° to 115°.

[0018] Finally, the control system includes a control panel, which is connected to the input of the PLC, and the outputs of the PLC are connected to the motor, the first cylinder and the second cylinder. The control panel sends instructions through the PLC to control the operation of the motor, the first cylinder and the second cylinder. The control panel is provided with a display screen and "start" and "stop" buttons. The display screen can display the number of sand blasting times, sand blasting time and sand pouring time; balancing foot pads are installed at the four corners of the lower end surface of the base.

[0019] Compared with the existing technology, the advantages of the present invention are as follows: it includes a sandblasting mechanism, a feeding mechanism, and a control system, and both feeding and sandblasting are automated, which greatly reduces labor intensity; the number of sandblasting times can be set according to requirements, and the control system controls the operation of the motor and two cylinders, so that the corundum can be recycled. The weight of the corundum impact that the tape can withstand can be calculated based on the number of sandblasting times, and the operation is convenient; a camera is set above the support plate to observe changes in the tape surface, making it more intuitive to determine whether the test should be stopped, while avoiding close contact between personnel and dust. The present invention has a simple and reasonable structure and is easy to operate. It effectively solves the problems of high labor intensity, high human error, and low work efficiency in manual operation, greatly reducing labor intensity, while also providing accurate and efficient testing, enabling automated testing and reducing testing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of a traditional sand washing test device;

[0021] Figure 2 This is a structural schematic diagram of the sand blasting test device according to an embodiment of the present invention in a material receiving state;

[0022] Figure 3 This is a structural schematic diagram of the sand blasting test device in the feeding state according to an embodiment of the present invention;

[0023] Figure 4 It is a structural diagram of the feeding mechanism;

[0024] Figure 5 It is a structural diagram of the sand flushing mechanism;

[0025] Figure 6 This is a working interface diagram of the control panel. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0027] like Figures 2 to 6 As shown, a fully automatic sand washing test device includes a sand washing mechanism 10, a feeding mechanism 20 and a control system. The sand washing mechanism 10 and the feeding mechanism 20 are respectively installed on the base 7. The sand washing mechanism 10 includes a fixing frame 103, a sand falling bucket 101, a supporting plate 102 and a sand receiving plate 107. The fixing frame 103 is vertically fixed to the base 7 by bolts. The sand falling bucket 101 is vertically arranged on the right side of the fixing frame 103. The sand falling bucket 101 is composed of a sand storage cylinder 1011 and a sand washing pipe 1012. The fixing frame 103 is provided with a sand washing pipe 1012. The upper and lower clamping members 109 are clamped and fixed, and a cover plate 105 which can be moved left and right to open or close the opening is provided at the lower end opening of the sand storage cylinder 1011. A first cylinder 104 for driving the cover plate 105 to move left and right is provided on the fixed frame 103. The first cylinder 104 is horizontally installed on the top of the fixed frame 103. A downward-folding edge is provided on the left side of the cover plate 105, and a mounting hole is provided on the folding edge. The head of the first cylinder 104 is provided with a screw corresponding to the mounting hole, and the cover plate 105 is sleeved on the screw through the folding edge and fixed to the screw by a nut. The support plate 102 is installed on the right side of the fixed frame 103 and directly below the sand dropout hopper 101 through a triangular bracket 108. A magnet is embedded in the middle of the upper end surface of the support plate 102. The tape ruler is set on the support plate 102 and fixed by the adsorption of the magnet. A sand receiving plate 107 that can extend outward and connect with the sand hopper 5 of the sand feeding mechanism is provided at the lower end of the support plate 102. A second cylinder 106 for driving the sand receiving plate 107 to extend and retract is provided on the lower end surface of the support plate 102. A camera for observing changes in the surface of the tape ruler is also installed above the support plate 102. The changes in the surface of the tape ruler can be observed in real time, and it is more intuitive to judge whether the test should be stopped, while avoiding close contact between personnel and dust.

[0028] The feeding mechanism 20 includes a feeding frame 1, a feeding plate 4 and a driving mechanism for driving the feeding plate 4 to move up and down. The feeding frame 1 is vertically arranged on the base 7 and is located on the right side of the sand falling hopper 101. A track 2 is installed on the outer side of the feeding frame 1 for the feeding plate 4 to be placed in and slide up and down. The track 2 is vertically arranged close to the left side of the feeding frame 1 and the upper end is a semicircular 21 bent to the left. The driving mechanism includes a motor 6 and a feeding belt 3. The feeding belt 3 is installed on the feeding frame 1 and is parallel to the vertical section of the track 2. The feeding belt 3 is transmission-connected to the feeding plate 4. Sensors a and b for limiting the lifting stroke of the feeding plate 4 are provided on the feeding frame 1. The sand hopper 5 is fixed on the feeding plate 4. When the feeding plate 4 is at the lower limit position, the sand hopper 5 is in a material receiving state. The second cylinder 106 drives the sand receiving plate 107 to move down and connect with the sand hopper 5. When the feeding plate 4 is at the upper limit position, the sand hopper 5 is located above the sand falling hopper 101 and is in a feeding state.

[0029] The feed plate 4 is strip-shaped, and its length corresponds to the diameter of the semicircular track 21 at the upper end of the track 2. Pulleys 41 and 42 that cooperate with the track 2 are installed at the upper and lower ends of the feed plate 4. The feed plate 4 is arranged on the track 2 so that it can move up and down via the pulleys 41 and 42. The sand bucket 5 is fixed to the lower middle part of the outer side of the feed plate 4 by screws. The motor 6 is a servo motor. The motor 6 is mounted on the base 7 and is located outside the feed frame 1. The feed frame 1 has sprockets 31 and 32 at the upper and lower ends respectively that drive the conveyor belt 3 to rotate. The conveyor belt 3 can be a chain. The output end of the motor 6 is provided with an output wheel that is transmission-connected to the sprocket 32 at the lower end of the feed frame 1. The output wheel can also be a sprocket. A pulley 43 is connected to the side of the transmission belt 3 near the feed plate 4. The pulley 43 is arranged in the track 2 below the lower pulley 42 of the feed plate 4. The pulley and the lower pulley are connected by a connecting plate 44.

[0030] Sensors a and b include an upper limit sensor a and a lower limit sensor a. The upper limit sensor a and the lower limit sensor b use proximity switches, and displacement sensors can also be used. When the feed plate 4 moves to the upper limit position, the feed plate 4 is at the semicircular track 21, and the inclination angle α is greater than 90°, which is 100° in this embodiment. This can prevent the feed plate 4 from resetting to a dead angle, which may cause mechanical failure of the device.

[0031] The control system includes a control panel 8 and a programmable logic controller (PLC). The control panel 8 is connected to the PLC input, and the PLC outputs are connected to the motor 6, the first cylinder 104, and the second cylinder 106. The control panel 8 sends commands via the PLC to control the operation of the motor 6, the first cylinder 104, and the second cylinder 106. The control panel 8 is equipped with a display screen and "Start" and "Stop" buttons. The display screen can display the number of sand blasting cycles, the sand blasting time, and the sand dumping time. A balancing foot pad 70 is provided at the bottom of the base.

[0032] In addition, the first cylinder 104 and the second cylinder 106 can be pneumatic or hydraulic; the fixing of the tape is not limited to magnets, and can also be fixed by means of pressure clamps, pneumatic clamping, etc.

[0033] The specific operation process is as follows:

[0034] Before the test, the tape is fixed on the support plate 102 of the sand washing mechanism 10 at an angle, and the feed plate 4 is at the lower limit position (i.e., the material receiving state A). # The corundum is poured into the sand hopper 5, and the "start" button on the control panel 8 is pressed. The motor 6 starts to run, driving the sprocket 32 to rotate, and the conveyor belt 3 drives the feeding plate 4 to move upward. When the feeding plate 4 moves to the upper limit position (i.e., feeding state B), the motor 6 stops running, and the sand hopper 5 pours the corundum into the sand hopper 101 (the lower opening of the sand hopper 101 is closed at this time). After pouring, the control panel 8 issues a command, the motor 6 reverses, drives the conveyor belt 3 to rotate counterclockwise, and the feeding plate 4 moves down, sending the sand hopper 5 back to the initial receiving state A. At the same time, the sand flushing mechanism 1 0 starts to run, the first cylinder 104 opens, drives the cover plate 105 to move left, opens the lower opening of the sand hopper 101, and the second cylinder 106 opens, drives the sand receiving plate 107 to move down and connect with the sand hopper 5, ensuring that all the corundum falls into the sand hopper 5, and the corundum falls to be sand-washed and impact the scale tape. After the sand-washing is completed, all the corundum is recovered into the sand hopper 5, closes the first cylinder 104 and the second cylinder 106, restores the initial state, and starts a new round of feeding. This cycle repeats until the surface of the scale tape is damaged, such as the scale tape engraving lines, character marks, etc. are eroded, fall off, and other defects.

[0035] The number of sand washing times can be set according to requirements, such as Figure 6 , set the number of sandblasting times to 100 times, and it will stop automatically after the set number of sandblasting times. You can also observe the changes on the tape surface in real time through the camera. If the tape is found to be damaged (the tape engraving lines, character marks, etc. are eroded, fallen off, etc.), manually press the "Stop" button and read the number of sandblasting times from the control panel 8. Based on the count, you can calculate how many L of diamond abrasive impact the tape can withstand.

[0036] The utility model improves the manual sand blasting of the transmission into automatic sand blasting, which greatly reduces the labor intensity and effectively solves the problems of high labor intensity, high error and low work efficiency of manual operation. At the same time, the test is accurate and efficient, and automatic testing can be realized to reduce the test cost.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A fully automatic sand washing test device, characterized by: The fully automatic sand blasting testing device includes a sand blasting mechanism, a feeding mechanism and a control system. The sand blasting mechanism includes a sand falling hopper, which is vertically arranged on the right side of the feeding mechanism through a fixed frame. The sand falling hopper is composed of a sand storage cylinder and a sand blasting pipe. A cover plate that can be moved left and right to open or close the opening is provided at the lower end opening of the sand storage cylinder. A first cylinder that drives the cover plate to move left and right is provided on the fixed frame. A support plate for fixing a ruler tape is provided at an angle below the sand blasting pipe. The feeding mechanism includes a feeding plate, a driving mechanism that drives the feeding plate to move up and down, and a limiting mechanism for limiting the up and down movement of the feeding plate. A sand hopper is fixed on the feeding plate. When the feeding plate is at the lower limit position, the sand hopper is in a material receiving state, and the corundum sand after sand blasting falls into the sand hopper along the inclined surface of the support plate. When the feeding plate is at the upper limit position, the sand hopper is in a feeding state, and the corundum sand in the sand hopper is poured into the sand falling hopper.

2. The fully automatic sand blasting test device according to claim 1, characterized in that: The fixing frame is vertically arranged on the base, and is provided with upper and lower clamping members for clamping and fixing the sand flushing pipe. The first cylinder is horizontally installed on the top of the fixing frame. The left side of the cover plate is provided with a folded edge folded downward, and a mounting hole is opened on the folded edge. The head of the first cylinder is provided with a screw corresponding to the mounting hole, and the cover plate is sleeved on the screw through the folded edge and fixed to the screw through a nut.

3. The fully automatic sand blasting test device according to claim 2, characterized in that: The support plate is installed on the right side of the fixed frame through a triangular bracket and is located directly below the sand falling hopper. A magnet is embedded in the middle of the upper end surface of the support plate. The ruler tape is set on the support plate and fixed by the adsorption of the magnet. A sand receiving plate that can extend outward and connect with the sand hopper is provided at the lower end of the support plate. A second cylinder for driving the sand receiving plate to extend and retract is provided on the lower end surface of the support plate.

4. The fully automatic sand blasting test device according to claim 3, characterized in that: A camera for observing changes in the surface of the tape is also installed above the support plate.

5. The fully automatic sand blasting test device according to claim 1, characterized in that: The feeding mechanism also includes a feeding rack, which is vertically arranged on the base and located on the left side of the fixed frame. A track is installed on the outer side of the feeding rack for the feeding plate to be placed in and slide up and down. The track is vertically arranged close to the right side of the feeding rack and the upper end is semicircular and bent to the right. The driving mechanism includes a motor and a feeding belt. The feeding belt is installed on the feeding rack and is parallel to the vertical section of the track. The feeding belt is connected to the feeding plate in a transmission manner. When the feeding plate is at the lower limit position, the sand hopper is in a material receiving state. The second cylinder drives the sand receiving plate to move downward and connect with the sand hopper. When the feeding plate is at the upper limit position, the sand hopper is located above the sand falling hopper and is in a feeding state.

6. The fully automatic sand blasting test device according to claim 5, characterized in that: The feeding plate is strip-shaped, and the length of the feeding plate corresponds to the diameter of the semicircular track at the upper end of the track. Pulleys that cooperate with the track are installed at the upper and lower ends of the feeding plate. The feeding plate can be moved up and down on the track through the pulleys, and the sand bucket is fixed to the middle and lower part of the outer side of the feeding plate by screws.

7. The fully automatic sand blasting test device according to claim 6, characterized in that: The motor is a servo motor, which is installed on the base and located on the outside of the feed rack. Sprockets for driving the conveyor belt are installed at the upper and lower ends of the feed rack respectively. The output end of the motor is provided with an output wheel which is connected to the sprocket at the lower end of the feed rack. A pulley is connected to the side of the transmission belt close to the feed plate. The pulley is set in the track below the lower pulley of the feed plate, and the pulley is connected to the lower pulley through a connecting plate.

8. The fully automatic sand blasting test device according to claim 1, characterized in that: The limit mechanism is arranged on the feeding rack and includes an upper limit sensor and a lower limit sensor. When the feeding plate moves up to the upper limit position, the feeding plate is located on a semicircular track and the inclination angle is greater than 90°.

9. The fully automatic sand blasting test device according to claim 8, characterized in that: The upper limit sensor and the lower limit sensor adopt proximity switches or displacement sensors, and the inclination angle of the feeding plate is 95°~115°.

10. The fully automatic sand blasting test device according to any one of claims 3 to 9, characterized in that: The control system includes a control panel, which is connected to the input of the PLC, and each output of the PLC is connected to the motor, the first cylinder and the second cylinder. The control panel sends instructions through the PLC to control the operation of the motor, the first cylinder and the second cylinder. The control panel is provided with a display screen and "start" and "stop" buttons. The display screen can display the number of sand blasting times, sand blasting time and sand dumping time; balancing foot pads are installed at the four corners of the lower end surface of the base.

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