A hardness detection device for a shaftless spiral blade material

Abstract

The present invention relates to the technical field of spiral blades, and discloses a hardness detection device for a shaftless spiral blade material, which includes a detection cylinder. A spiral blade is rotatably installed in the detection cylinder. One end of the detection cylinder is provided with an equipment box. A motor is arranged inside the equipment box. The rotating shaft of the motor is fixedly connected to the spiral blade. A flat plate is arranged at the upper end of the detection cylinder. A detection mechanism is arranged on the flat plate. The detection mechanism includes a moving rod. The moving rod slidably penetrates through the flat plate. A conical block is fixedly installed at the bottom end of the moving rod. The conical block intermittently contacts the spiral blade. During detection, when the conical block contacts the spiral blade, if the rising height of the moving rod is higher than the normal scale line, it indicates that the hardness of the spiral blade is qualified. If the rising height of the moving rod is lower than the normal scale line, it indicates that the hardness of the spiral blade is unqualified. When this device is detecting, it does not need to stop the equipment, can automatically detect the hardness of the spiral blade, has a relatively high production efficiency, and reduces the labor cost.

Description

Technical Field

[0001] The present invention relates to the technical field of spiral blades, and in particular to a hardness detection device for the material of a shaftless spiral blade. Background Technique

[0002] The shaftless spiral blade is a key component for conveying materials. Its shape is spiral, coiled around the central axis, and the middle of the blade is a hollow structure. During the feeding process of the shaftless spiral blade, the hardness of the spiral blade has an important impact on the conveying function of the spiral blade. If the hardness of the spiral blade is relatively low, the shaftless spiral blade is likely to be damaged during material conveying, thus affecting the normal progress of material conveying. Moreover, with the continuous use of the spiral blade, the blade will become thinner due to wear, thus greatly affecting the hardness of the spiral blade.

[0003] When the existing shaftless spiral blades are conveying materials, it is difficult for conventional sensors to directly detect the hardness of the spiral blades. Usually, the wear amount of the blades is used as a reference, especially the change in the edge length of the blades. Therefore, if we want to detect the strength of the spiral blades, we have to stop the feeding equipment and manually wipe the blades before detection, resulting in low production efficiency and increased labor costs. Therefore, it does not meet the existing requirements. For this reason, we propose a hardness detection device for the material of a shaftless spiral blade. Summary of the Invention

[0004] The present invention provides a hardness detection device for the material of a shaftless spiral blade, which has the beneficial effects of not requiring the equipment to stop, being able to automatically detect the hardness of the spiral blade, having relatively high production efficiency, and reducing labor costs, and solves the problem mentioned in the above background technique that when the existing shaftless spiral blades are conveying materials, it is difficult for conventional sensors to directly detect the hardness of the spiral blades. Usually, the wear amount of the blades is used as a reference, especially the change in the edge length of the blades. Therefore, if we want to detect the strength of the spiral blades, we have to stop the feeding equipment and manually wipe the blades before detection, resulting in low production efficiency and increased labor costs.

[0005] The present invention provides the following technical solution: A hardness detection device for the material of a shaftless spiral blade, including a detection cylinder, in which a spiral blade to be detected is rotatably installed. One end of the detection cylinder is provided with an equipment box, and a motor is arranged inside the equipment box. The rotating shaft of the motor is detachably installed with the spiral blade. A flat plate is arranged at the upper end of the detection cylinder, and a detection mechanism is arranged on the flat plate. The detection mechanism includes a moving rod for measuring the hardness of the spiral blade. The moving rod passes through the flat plate, and a conical block is arranged at the bottom end of the moving rod. The conical block intermittently abuts against the spiral blade;

[0006] During detection, the conical block abuts against the spiral blade, and the moving rod moves up and down under the action of the conical block;

[0007] A first sleeve is arranged on the flat plate. The moving rod slidably penetrates through the first sleeve. A first compression spring for resetting the moving rod is arranged in the first sleeve. A movable plate is slidably installed in the first sleeve, and one end of the first compression spring abuts against the movable plate;

[0008] A first vertical plate for observing the displacement of the moving rod is vertically installed at the top of the first sleeve. Multiple scale lines are equidistantly arranged on the first vertical plate. There are a pair of first vertical plates, and the planes where the scale lines of the pair of first vertical plates are located are arranged opposite to each other.

[0009] As an alternative scheme of the hardness detection device for the shaftless spiral blade material of the present invention, wherein: a through groove is formed on the flat plate. The moving rod slidably penetrates through the through groove. A moving plate is slidably installed on the flat plate. The motor is in transmission connection with the moving plate, and the first sleeve is installed on the moving plate;

[0010] The moving plate moves, and the detection mechanism performs hardness detection on the spiral blades at different positions.

[0011] As an alternative scheme of the hardness detection device for the shaftless spiral blade material of the present invention, wherein: a pair of second vertical plates are arranged on the flat plate. A sliding groove is formed in the inner wall of the second vertical plate. Both ends of the moving plate are slidably installed in the sliding groove. Grooved rollers are rotatably installed at both ends of the second vertical plate. A belt is arranged in the groove of the roller, and the moving plate is fixedly installed on the belt.

[0012] As an alternative scheme of the hardness detection device for the shaftless spiral blade material of the present invention, wherein: a flange is installed on the rotating shaft of the motor. A driving gear is installed on the flange. A transmission gear is rotatably installed in the equipment box. The driving gear meshes with the transmission gear. A driven gear is rotatably installed in the equipment box. The driven gear meshes with the transmission gear;

[0013] One end of the driven gear is installed with a rotating rod. The rotating rod penetrates through the equipment box, and one end of the rotating rod is installed with a second bevel gear. One end of the roller is coaxially installed with a first bevel gear. The first bevel gear meshes with the second bevel gear.

[0014] As an alternative scheme of the hardness detection device for the shaftless spiral blade material of the present invention, wherein: the driving gear is set as an incomplete gear;

[0015] When the transmission gear meshes with the driving gear, the transmission gear rotates and the moving plate moves;

[0016] When the transmission gear does not mesh with the driving gear, the moving plate stops moving and the detection mechanism detects the spiral blade.

[0017] As an alternative embodiment of the shaftless spiral blade material hardness detection device of the present invention, a plurality of first wedge-shaped blocks are equidistantly installed on the flat plate. A cross bar is installed on the moving rod. One end of the cross bar is installed with a vertical rod, and the bottom end of the vertical rod is installed with a slider. The slider intermittently contacts the first wedge-shaped block, and the cross sections of the first wedge-shaped block and the slider are both trapezoidal;

[0018] When the first wedge-shaped block slides into contact with the inclined surface of the slider, the slider drives the moving rod to move vertically upward by a certain distance.

[0019] As an alternative embodiment of the shaftless spiral blade material hardness detection device of the present invention, a cleaning mechanism is installed on the moving plate. The cleaning mechanism is arranged in front of the moving direction of the detection mechanism. The cleaning mechanism includes an airbag for blowing away the materials in front of the detection mechanism. One-way valves are installed at both the air inlet and the air outlet of the airbag. A pipeline is installed on the one-way valve, and the bottom end of the pipeline is located above the spiral blade.

[0020] As an alternative embodiment of the shaftless spiral blade material hardness detection device of the present invention, a pressing plate is fixedly installed at the top end of the airbag. A pair of positioning rods are installed on the moving plate. The positioning rods slidably penetrate through the pressing plate. A tension spring is arranged on the moving plate, and one end of the tension spring is fixedly connected to the pressing plate;

[0021] One side of the pressing plate is hinged with a rotating plate. A torsion spring is installed on the rotating plate. One end of the torsion spring is fixedly connected to the pressing plate, and the other end of the torsion spring is fixedly connected to the rotating plate;

[0022] An L-shaped rod is also installed on the cross bar. A second sleeve is installed at the bottom end of the L-shaped rod. A second wedge-shaped block is slidably installed in the second sleeve. A second compression spring is arranged in the second sleeve, and one end of the second compression spring abuts against the second wedge-shaped block.

[0023] The present invention has the following beneficial effects:

[0024] 1. For the shaftless spiral blade material hardness detection device, when the motor drives the spiral blade to rotate, the spiral blade will interact and contact with the conical block, and the moving rod will move up and down under the action of the conical block. Therefore, if the upward displacement of the moving rod is small or there is no displacement, it indicates that the wear amount of the spiral blade is large and the hardness of the spiral blade is greatly reduced. If the upward displacement of the moving rod is obvious, it indicates that the wear amount of the spiral blade is small and the hardness of the spiral blade is qualified. There is a first vertical plate installed above the first sleeve, and scale lines for measuring the displacement of the moving rod are set on the first vertical plate, so that the displacement amount of the moving rod can be observed more intuitively, and further judge whether the hardness of the spiral blade is qualified. When this device is detecting, it does not need to stop the equipment, can automatically detect the hardness of the spiral blade, has a high production efficiency, and reduces the labor cost.

[0025] 2. For the shaftless spiral blade material hardness detection device, when the driving gear meshes with the transmission gear, the motor drives the roller to rotate, and the moving plate moves along with the belt. When the transmission gear does not mesh with the driving gear, the moving plate no longer moves. At this time, the conical block on the detection mechanism detects the spiral blade. After the detection is completed, the transmission gear meshes with the driving gear again, and so on, realizing the function of the detection mechanism to automatically detect the spiral blades at different positions, increasing the practicability of this device;

[0026] Moreover, when the moving plate moves, the slider slides into contact with the first wedge-shaped block, so that the vertical rod moves upward, further driving the moving rod and the conical block to move upward, preventing the conical block from rubbing against the spiral blade during the movement, thus increasing the reliability of this device.

[0027] 3. For the shaftless spiral blade material hardness detection device, there is an airbag arranged on the moving plate. When the moving plate moves, the first wedge-shaped block contacts the slider, and the vertical rod moves upward, further driving the L-shaped rod to move upward. At this time, the second wedge-shaped block abuts against the rotating plate, and the pressing plate moves upward against the pulling force of the tension spring, and the airbag inhales air. When the L-shaped rod moves further upward, the rotating plate deflects against the elastic force of the torsion spring. At this time, the second wedge-shaped block no longer abuts against the rotating plate, and the pressing plate moves downward under the pulling force of the tension spring, and the airbag blows air out through the pipeline. Moreover, the bottom end of the pipeline is arranged in front of the moving direction of the detection mechanism, and the airbag blows away the materials on the spiral blade, preventing the materials from affecting the displacement of the conical block when the detection mechanism detects the spiral blade, thus further increasing the reliability of this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of the whole of the present invention.

[0029] Figure 2 It is a schematic cross-sectional structure diagram of the present invention Figure 1 .

[0030] Figure 3 For the present invention Figure 2 Schematic enlarged view of the structure at position B in the present invention.

[0031] Figure 4 Schematic top view of the structure of the present invention.

[0032] Figure 5 Schematic view of the structure of the driving gear of the present invention.

[0033] Figure 6 For the present invention Figure 1 Schematic enlarged view of the structure at position A in the present invention.

[0034] Figure 7 Schematic view of the structure of the detection mechanism and the cleaning mechanism of the present invention.

[0035] Figure 8 Schematic sectional view of the cleaning mechanism of the present invention Figure 1 .

[0036] Figure 9 Schematic sectional view of the cleaning mechanism of the present invention Figure 2 .

[0037] Figure 10 For the present invention Figure 9 Schematic enlarged view of the structure at position C in the present invention.

[0038] In the figure: 101, detection cylinder; 102, equipment box; 103, spiral blade; 104, motor; 200, detection mechanism; 201, flat plate; 202, conical block; 203, moving rod; 204, first vertical plate; 206, first sleeve; 207, movable plate; 208, first compression spring; 301, flange; 302, driving gear; 303, transmission gear; 304, driven gear; 305, rotating rod; 306, first bevel gear; 307, second bevel gear; 308, through slot; 309, roller; 310, belt; 311, moving plate; 312, cross bar; 313, first wedge-shaped block; 314, slider; 315, chute; 316, vertical rod; 317, second vertical plate; 400, cleaning mechanism; 401, airbag; 402, pipeline; 403, positioning rod; 404, pressing plate; 405, one-way valve; 406, tension spring; 407, second wedge-shaped block; 408, second sleeve; 409, L-shaped rod; 410, second compression spring; 411, rotating plate; 412, torsion spring. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] Embodiment 1. The purpose of this embodiment is to facilitate the solution of the problem that when the existing shaftless spiral blade conveys materials, it is difficult for a conventional sensor to directly detect the hardness of the spiral blade. Usually, the blade wear amount is used as a reference, especially the change in the edge length of the blade. Therefore, to detect the strength of the spiral blade, the feeding equipment has to be stopped, and the blade is wiped manually before detection, resulting in low production efficiency and increased labor costs. Please refer to Figures 1 to 10 , a device for detecting the hardness of a shaftless spiral blade material, including a detection cylinder 101. A spiral blade 103 to be detected is rotatably installed in the detection cylinder 101. One end of the detection cylinder 101 is provided with an equipment box 102. A motor 104 is arranged inside the equipment box 102. The spiral blade 103 is detachably installed on the rotating shaft of the motor 104 through bolts and nuts. A flat plate 201 is arranged at the upper end of the detection cylinder 101. A detection mechanism 200 is arranged on the flat plate 201. The detection mechanism 200 includes a moving rod 203 for measuring the hardness of the spiral blade 103. The moving rod 203 passes through the flat plate 201. A conical block 202 is arranged at the bottom end of the moving rod 203. The conical block 202 intermittently contacts the spiral blade 103.

[0041] During detection, the conical block 202 contacts the spiral blade 103, and the moving rod 203 moves up and down under the action of the conical block 202.

[0042] Specifically, please refer to Figure 8 , a first sleeve 206 is arranged on the flat plate 201. The moving rod 203 slidably penetrates through the first sleeve 206. A first compression spring 208 for resetting the moving rod 203 is arranged in the first sleeve 206. A movable plate 207 is slidably installed in the first sleeve 206. One end of the first compression spring 208 abuts against the movable plate 207.

[0043] In addition, a first vertical plate 204 is vertically installed at the top of the first sleeve 206. Multiple scale lines are equidistantly arranged on the first vertical plate 204. There are a pair of first vertical plates 204, and the planes where the scale lines of the pair of first vertical plates 204 are located are arranged oppositely. Therefore, the staff can conveniently see the scale of the first vertical plate 204 on both sides of the detection cylinder 101. It should be noted that when the spiral blade 103 is at the lowest qualified hardness (corresponding to the maximum wear amount of the spiral blade 103), the scale line corresponding to the highest position reached by the moving rod 203 is the qualified scale line. During detection, when the height to which the moving rod 203 rises is higher than the qualified scale line, it indicates that the hardness of the spiral blade 103 is qualified; conversely, when the height to which the moving rod 203 rises is lower than the qualified scale line, it indicates that the hardness of the spiral blade 103 is unqualified.

[0044] In this embodiment: When the motor 104 drives the spiral blade 103 to rotate, the spiral blade 103 will come into contact with the conical block 202, and the moving rod 203 moves up and down under the action of the conical block 202. Therefore, if the upward displacement of the moving rod 203 is small or there is no displacement, it indicates that the wear amount of the spiral blade 103 is large and the hardness of the spiral blade 103 is greatly reduced. If the upward displacement of the moving rod 203 is obvious, it indicates that the wear amount of the spiral blade 103 is small and the hardness of the spiral blade 103 is qualified. A first vertical plate 204 is installed above the first sleeve 206, and scales for measuring the displacement of the moving rod 203 are marked on the first vertical plate 204. In this way, the displacement of the moving rod 203 can be observed more intuitively, and further judge whether the hardness of the spiral blade 103 is qualified. When this device is detecting, it does not need to stop the equipment and can automatically detect the hardness of the spiral blade 103, with high production efficiency and reduced labor costs.

[0045] Embodiment 2 aims to promote the solution to the problem of enabling the moving plate 311 to move by itself so as to detect the spiral blades 103 at different positions. This embodiment is an improvement based on Embodiment 1. Specifically, please refer to Figures 1 to 10 , a through groove 308 is opened on the flat plate 201, the moving rod 203 slides through the through groove 308, a moving plate 311 is slidably installed on the flat plate 201, the first sleeve 206 is installed on the moving plate 311, and the moving plate 311 moves to detect the hardness of the spiral blades 103 at different positions by the detection mechanism 200.

[0046] Please refer to Figure 4 , a pair of second vertical plates 317 are arranged on the flat plate 201, a sliding groove 315 is installed on the second vertical plates 317, both ends of the moving plate 311 are slidably installed in the sliding groove 315, rollers 309 with grooves are rotatably installed at both ends of the second vertical plates 317, a belt 310 is arranged in the grooves of the rollers 309, and the moving plate 311 is fixedly installed on the belt 310.

[0047] In addition, please refer to Figure 5 , a flange 301 is installed on the rotating shaft of the motor 104, a driving gear 302 is installed on the flange 301, a transmission gear 303 is rotatably installed in the equipment box 102, the driving gear 302 meshes with the transmission gear 303, a driven gear 304 is rotatably installed in the equipment box 102, the driven gear 304 meshes with the transmission gear 303, a rotating rod 305 is installed at one end of the driven gear 304, the rotating rod 305 penetrates the equipment box 102, and a second bevel gear 307 is installed at one end of the rotating rod 305. A first bevel gear 306 is coaxially installed at one end of the roller 309, and the first bevel gear 306 meshes with the second bevel gear 307.

[0048] Among them, the driving gear 302 is set as an incomplete gear. When the transmission gear 303 meshes with the driving gear 302, the transmission gear 303 rotates. The transmission gear 303 is driven by the second bevel gear 307, thereby driving the first bevel gear 306 to rotate, further driving the roller 309 to rotate, so that the belt 310 installed on the roller 309 moves, and finally driving the moving plate 311 to move. When the transmission gear 303 does not mesh with the driving gear 302, the moving plate 311 stops moving, and the detection mechanism 200 detects the spiral blade 103.

[0049] In addition, please refer to Figure 1 , a plurality of first wedge-shaped blocks 313 are equidistantly installed on the flat plate 201. A cross bar 312 is installed on the moving rod 203. A vertical rod 316 is installed at one end of the cross bar 312. A slider 314 is installed at the bottom end of the vertical rod 316. The slider 314 is in intermittent contact with the first wedge-shaped block 313. The cross sections of both the first wedge-shaped block 313 and the slider 314 are trapezoidal. When the first wedge-shaped block 313 slides in contact with the inclined surface of the slider 314, the slider 314 drives the moving rod 203 to move vertically upward for a certain distance.

[0050] It should be noted that when the detection mechanism 200 detects the spiral blade 103, the slider 314 is located between two first wedge-shaped blocks 313, and during the detection process, the slider 314 does not contact the first wedge-shaped block 313 as the tapered block 202 moves up and down, thereby preventing the friction between the first wedge-shaped block 313 and the slider 314 from interfering with the detection.

[0051] In this embodiment: When the motor 104 operates, it drives the driving gear 302 to rotate through the flange 301. When the driving gear 302 meshes with the transmission gear 303, the motor 104 drives the roller 309 to rotate, and the moving plate 311 moves along with the belt 310. When the transmission gear 303 does not mesh with the driving gear 302, the moving plate 311 stops moving. At this time, the conical block 202 on the detection mechanism 200 detects the spiral blade 103. After the detection is completed, the transmission gear 303 meshes with the driving gear 302 again, and so on, realizing the function of the detection mechanism 200 to automatically detect the spiral blades 103 at different positions, which increases the practicability of this device;

[0052] Moreover, when the moving plate 311 moves, the slider 314 is in sliding contact with the first wedge-shaped block 313, so that the vertical rod 316 moves upward, further driving the moving rod 203 and the conical block 202 to move upward, preventing the conical block 202 from rubbing against the spiral blade 103 during the movement, thus increasing the reliability of this device.

[0053] Embodiment 3 aims to facilitate the solution of the problem that the material affects the displacement of the conical block 202 when the detection mechanism 200 detects the spiral blade 103. This embodiment is an improvement based on Embodiment 2. Specifically, please refer to Figures 1 to 10 , a cleaning mechanism 400 is installed on the moving plate 311. The cleaning mechanism 400 is arranged in front of the moving direction of the detection mechanism 200. The cleaning mechanism 400 includes an airbag 401. Check valves 405 are installed at both the air inlet and the air outlet of the airbag 401. The one-way directions of the two check valves 405 are opposite. A pipeline 402 is installed on the check valve 405. The bottom end of the pipeline 402 is located above the spiral blade 103. When the moving plate 311 moves forward, the airbag 401 blows away the material in front of the conical block 202 through the pipeline 402.

[0054] The check valve 405 includes a spring and a baffle. Under normal conditions, the baffle seals the check valve 405. When the pressure on one side of the baffle is greater than the spring force, the baffle opens, so that the air flow can only pass unidirectionally in the check valve.

[0055] A pair of positioning rods 403 are installed on the moving plate 311. A pressing plate 404 is slidably installed on the positioning rods 403. The pressing plate 404 is fixedly connected to the top end of the airbag 401. A tension spring 406 is arranged on the moving plate 311. One end of the tension spring 406 is fixedly connected to the pressing plate 404. A rotating plate 411 is hinged to one side of the pressing plate 404. A torsion spring 412 is installed on the rotating plate 411. One end of the torsion spring 412 is fixedly connected to the pressing plate 404, and the other end of the torsion spring 412 is fixedly connected to the rotating plate 411. An L-shaped rod 409 is also installed on the cross bar 312. A second sleeve 408 is installed at the bottom end of the L-shaped rod 409. A second wedge-shaped block 407 is slidably installed in the second sleeve 408. A second compression spring 410 is arranged in the second sleeve 408. One end of the second compression spring 410 abuts against the second wedge-shaped block 407.

[0056] It should be noted that, please refer to Figure 2 , Figure 7 , Figure 9 , Figure 10 , after the spiral blade 103 at the current position is detected, the detection mechanism 200 moves. At this time, the slider 314 contacts the inclined surface of the first wedge-shaped block 313. The slider 314 drives the cross bar 312 to move upward through the vertical rod 316, thereby driving the L-shaped rod 409 to move upward. Then the second wedge-shaped block 407 abuts against the rotating plate 411, further driving the pressing plate 404 to move upward. At this time, the tension spring 406 is stretched and stores energy, and the airbag 401 inhales air. As the L-shaped rod 409 continues to move upward, the rotating plate 411 deflects against the elastic force of the torsion spring 412, and the second wedge-shaped block 407 separates from the rotating plate 411. The pressing plate 404 compresses the airbag 401 to blow air under the action of the tension spring 406. Moreover, the work of compressing the airbag 401 to blow air is carried out during the movement of the moving plate 311. Therefore, when the moving plate 311 stops, the airbag 401 just cleans the material in front of the detection mechanism 200, preventing the material from interfering with the tapered block in the detection mechanism 200.

[0057] It should be noted that there is a certain distance between the second wedge-shaped block 407 and the rotating plate 411. Therefore, when the detection mechanism 200 performs detection, although the second wedge-shaped block 407 moves up and down with the tapered block 202, the second wedge-shaped block 407 does not touch the rotating plate 411, thus avoiding interference with the detection when the rotating plate 411 abuts against the second wedge-shaped block 407. Additionally, in specific implementation, the first wedge-shaped block 313 has a certain height, so as to ensure that when the slider 314 contacts the inclined surface of the first wedge-shaped block 313 and moves upward, the second wedge-shaped block 407 smoothly abuts against the rotating plate 411.

[0058] In this embodiment: An airbag 401 is provided on the moving plate 311. When the moving plate 311 moves, the first wedge block 313 contacts the slider 314, and the vertical rod 316 moves upward, further driving the L-shaped rod 409 to move upward. At this time, the second wedge block 407 abuts against the rotating plate 411, and the pressing plate 404 moves upward against the tension of the tension spring 406, and the airbag 401 inhales air. When the L-shaped rod 409 moves further upward, the rotating plate 411 deflects against the elastic force of the torsion spring 412. At this time, the second wedge block 407 no longer abuts against the rotating plate 411, and the pressing plate 404 moves downward under the tension of the tension spring 406, and the airbag 401 blows air out through the pipeline 402. Moreover, the bottom end of the pipeline 402 is arranged in front of the moving direction of the detection mechanism 200, and the airbag 401 blows away the material on the spiral blade 103, preventing the material from affecting the displacement of the conical block 202 when the detection mechanism 200 detects the spiral blade 103, thereby further increasing the reliability of the device.

[0059] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0060] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A hardness detection device for a shaftless spiral blade material, comprising a detection cylinder, in which a spiral blade to be detected is rotatably installed, one end of the detection cylinder is provided with an equipment box, a motor is arranged inside the equipment box, and the rotating shaft of the motor is detachably installed with the spiral blade, and is characterized in that: A flat plate is provided at the upper end of the detection cylinder, and a detection mechanism is provided on the flat plate. The detection mechanism includes a moving rod for measuring the hardness of the spiral blade, the moving rod passes through the flat plate, and a conical block is provided at the bottom end of the moving rod, and the conical block intermittently contacts the spiral blade; During detection, the conical block contacts the spiral blade, and the moving rod moves up and down under the action of the conical block; A No. 1 sleeve is provided on the flat plate, the movable rod slides through the No. 1 sleeve, a No. 1 compression spring is provided in the No. 1 sleeve for resetting the movable rod, a movable plate is slidably installed in the No. 1 sleeve, and one end of the No. 1 compression spring contacts the movable plate; A No. 1 vertical plate for observing the displacement of the moving rod is vertically mounted on the top of the No. 1 sleeve. A plurality of scale lines are equidistantly arranged on the No. 1 vertical plate. A pair of No. 1 vertical plates are provided, and the scale lines of the pair of No. 1 vertical plates are arranged opposite to each other. A plurality of No. 1 wedge blocks are equidistantly installed on the flat plate, a cross bar is installed on the movable rod, a vertical bar is installed at one end of the cross bar, and a slider is installed at the bottom end of the vertical bar. When the No. 1 wedge block slides in contact with the inclined surface of the slider, the slider drives the movable rod to move vertically upward for a distance.

2. The hardness detection device for the shaftless spiral blade material according to claim 1, wherein: The flat plate is provided with a through slot, the movable rod is slidably inserted into the through slot, a movable plate is slidably mounted on the flat plate, the motor is transmission-connected to the movable plate, and the No. 1 sleeve is mounted on the movable plate; The movable plate moves, and the detection mechanism detects the hardness of the spiral blades at different positions.

3. The hardness detection device for the shaftless spiral blade material according to claim 2, wherein: A pair of No. 2 vertical plates are provided on the flat plate, and a slide groove is provided on the inner wall of the No. 2 vertical plate. Both ends of the movable plate are slidably installed in the slide groove. Rollers with grooves are rotatably installed at both ends of the No. 2 vertical plate. A belt is provided in the groove of the roller, and the movable plate is fixedly installed on the belt.

4. The hardness detection device for the shaftless spiral blade material according to claim 3, characterized in that: A flange is installed on the rotating shaft of the motor, a driving gear is installed on the flange, a transmission gear is rotatably installed in the equipment box, the driving gear is meshed with the transmission gear, and a driven gear is rotatably installed in the equipment box, the driven gear is meshed with the transmission gear; A rotating rod is installed at one end of the driven gear, the rotating rod is inserted into the equipment box, and a second bevel gear is installed at one end of the rotating rod. A first bevel gear is coaxially installed at one end of the roller, and the first bevel gear is meshed with the second bevel gear.

5. The hardness detection device for the shaftless spiral blade material according to claim 4, characterized in that: The driving gear is configured as an incomplete gear; When the transmission gear is engaged with the driving gear, the transmission gear rotates and the moving plate moves; When the transmission gear is not engaged with the driving gear, the moving plate stops moving, and the detecting mechanism detects the spiral blade.

6. The hardness detection device for the shaftless spiral blade material according to claim 2, characterized in that: The sliding block is in intermittent contact with the first wedge block, and the cross sections of the first wedge block and the sliding block are both set to be trapezoidal.

7. An apparatus for detecting the hardness of a shaftless spiral blade material according to claim 6, characterized in that: A cleaning mechanism is installed on the moving plate. The cleaning mechanism is arranged in front of the moving direction of the detection mechanism. The cleaning mechanism includes an airbag for blowing away the materials in front of the detection mechanism. One-way valves are installed at both the air inlet and the air outlet of the airbag. Pipes are installed on the one-way valves. The bottom end of the pipe is located above the spiral blade.

8. The hardness detection device for a shaftless spiral blade material according to claim 7, wherein: A pressing plate is fixedly installed at the top end of the airbag. A pair of positioning rods are installed on the moving plate. The positioning rods slidably penetrate through the pressing plate. A tension spring is arranged on the moving plate. One end of the tension spring is fixedly connected to the pressing plate; A rotating plate is hinged to one side of the pressing plate. A torsion spring is installed on the rotating plate. One end of the torsion spring is fixedly connected to the pressing plate, and the other end of the torsion spring is fixedly connected to the rotating plate; An L-shaped rod is also installed on the cross bar. A second sleeve is installed at the bottom end of the L-shaped rod. A second wedge-shaped block is slidably installed in the second sleeve. A second compression spring is arranged in the second sleeve. One end of the second compression spring abuts against the second wedge-shaped block.

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