Tube needle sorting equipment

Abstract

A tube needle sorting device comprises a sorting wheel, a frame, a tube needle counting and feeding device and a tube needle receiving device; the sorting wheel is rotatably arranged on the frame; the tube needle counting and feeding device comprises a feed box and a sensor counter; the feed box is arranged above the sorting wheel, and the sensor counter is arranged below the sorting wheel. The tube needles enter the sorting wheel from the feed box, and pass through the sensor counter after sorting, so as to realize the rapid sorting and accurate counting of the tube needles; the tube needle receiving device comprises a conveying turntable and a plurality of hoppers; the conveying turntable is rotatably positioned on the frame, and a plurality of hoppers are arranged on the conveying turntable. The tube needles fall into the hoppers and enter the packaging process as the conveying turntable moves. The empty hoppers then pass through the conveying turntable back to the bottom of the sorting wheel to receive the materials, thereby realizing the transportation of the tube needles.

Description

Technical Field

[0001] The invention relates to the field of tube needle packaging, and in particular to a tube needle sorting device used in a tube needle sorting and packaging process of acupuncture needles. Background Art

[0002] Acupuncture needles are relatively small. In the packaging process, acupuncture needles need to be placed in tubes to form tubes, then sorted, and finally packed into boxes or bags according to a certain number. In the process of sorting tubes, it is very difficult to arrange and count the tubes. Relying only on manpower to add materials, count and package, the production efficiency is low and errors are prone to occur.

[0003] In order to overcome the shortcomings of the above-mentioned manual sorting, the applicant has developed a sorting wheel to replace manual tube needle sorting. There are several needle grooves evenly distributed in parallel on the circumferential surface of the sorting wheel, and the size and shape of the needle grooves correspond to the tube needles. When adding materials, the tube needles fall into the needle grooves one by one, corresponding to the needle grooves one by one, and the sorting wheel rotates to drive each tube needle to rotate, and fall out in an orderly manner to complete the sorting and discharging. This prior art overcomes the problem of low efficiency of traditional manual sorting and can greatly improve the sorting speed, but it has the following shortcomings: In the actual working process of the above-mentioned sorting wheel, the speed of discharging the tube needle is adjusted by controlling its rotation speed to control the number of discharging tube needles between units; however, the error generated by counting only by the rotation speed of the sorting wheel is large, because it is impossible to judge whether the material trough of the sorting wheel is empty or overloaded. Even if the counting is verified by weighing after sorting, the weight of a single tube needle is small, and the actual weighing counting error is also large.

[0004] Moreover, during the sorting and discharging process, due to the lack of a well-designed receiving device, the tube needles often scatter out of the receiving position due to the vibration of the equipment during operation. This not only affects the subsequent overall packaging and reduces the packaging efficiency, but more importantly, even if the sorting and discharging can achieve accurate counting, there will still be errors in the number of tube needles during the final packaging.

[0005] Therefore, how to solve the above-mentioned deficiencies in the prior art has become a subject to be studied and solved by the present invention. Summary of the invention

[0006] The purpose of the present invention is to provide a tube needle sorting device; in order to achieve the above purpose, the technical solution adopted by the present invention is:

[0007] A tube needle sorting device comprises a frame and a sorting wheel, wherein the sorting wheel is rotatably connected to the frame and driven to rotate by a driving motor, wherein the rotating shaft of the sorting wheel is defined as a first rotating shaft, wherein the axial direction of the first rotating shaft is a front-to-back direction, and the vertical direction is an up-down direction;

[0008] The tube needle sorting device comprises a tube needle counting and feeding device and a tube needle receiving device;

[0009] The tube needle counting and feeding device comprises a feeding box and a sensor counter;

[0010] The feed box is positioned on the frame, the upper end opening of the feed box is used as the feed port, and the lower end opening is used as the discharge port, the discharge port is set corresponding to the sorting wheel, and in the corresponding setting state, the discharge port is attached to a place on the surface of the sorting wheel, enclosing the needle groove on the surface of the sorting wheel at that place, and is used to feed the sorting wheel; the sorting wheel is provided with a discharge port, the sensor counter is set in the discharge port, and the sensor counter is electrically connected to a control circuit;

[0011] The tube needle material receiving device includes a conveying turntable and a plurality of hoppers;

[0012] The conveying turntable is driven to rotate by a stepping motor controlled by the control circuit, and the conveying turntable is rotatably arranged on the frame, and the rotating shaft of the conveying turntable is defined as the second rotating shaft, and the axial direction of the second rotating shaft is the up-down direction; the upper surface of the conveying turntable is the hopper placement surface, and each of the hoppers is evenly distributed on the hopper placement surface around the second rotating shaft;

[0013] The open upper end of the hopper serves as a material receiving port. During operation, each of the hoppers is driven by the conveying turntable to move successively to the material receiving position below the material discharge port. When the hopper is located at the material receiving position, the material receiving port of the hopper is aligned with the material discharge port of the sorting wheel in the up and down directions.

[0014] Furthermore, the tube needle counting and feeding device also includes an adjustment plate and a guide rail;

[0015] The adjusting plate is slidably assembled in the feed box along the front-to-back direction, dividing the inside of the feed box into a feeding space with adjustable front-to-back width, where the width refers to the distance between the adjusting plate and the inner wall of the feed box in the front-to-back direction;

[0016] The guide rail is positioned and attached to the circumferential surface of the sorting wheel, the upper end of the guide rail corresponds to the discharge port of the feed box, the lower end of the guide rail corresponds to the discharge port of the sorting wheel, and the sensor counter is positioned at the lower end of the guide rail.

[0017] Further, the feed box is in the shape of a prism-shaped funnel, the larger opening of which is the feed port, and the smaller opening is the discharge port. The funnel is positioned on the frame, and arranged above the sorting wheel in a manner such that the feed port faces upward and the discharge port faces downward and corresponds to the sorting wheel;

[0018] The adjusting plate is a trapezoidal plate, the wide bottom of which matches the feeding port of the feeding box, and the narrow bottom matches the discharging port of the feeding box, so that the adjusting plate is assembled in the feeding box;

[0019] The guide rail has a semicircular arc surface, which is attached to the circumferential surface of the sorting wheel on the side moving from top to bottom. The upper end of the semicircular arc surface corresponds to the discharge port, and the lower end of the semicircular arc surface corresponds to the discharge port.

[0020] Furthermore, the tube needle sorting device also includes a base; the base is slidably positioned on the frame, and the sliding direction is the front-to-back direction. The feed box, sensor counter and guide rail are all fixed on the base, and the sorting wheel is rotatably positioned on the base.

[0021] Furthermore, the base is provided with an oblong hole at a portion where the base is connected to the frame, and the length of the oblong hole is arranged along the front-to-back direction.

[0022] Furthermore, a plurality of vertically adjustable lifting bolts are arranged at equal wheel spacing around the second rotating shaft on the hopper placement surface; the hopper is in the shape of a shovel, and the shovel mouth of each shovel is correspondingly mounted on the lifting bolts, so that each shovel is positioned on the hopper placement surface in an inclined state; a plurality of hopper positioning grooves are provided on the conveying turntable, and a lifting bolt is provided in each of the hopper positioning grooves, and each hopper is positioned in the hopper positioning groove in a one-to-one manner with the shovel mouth mounted on the lifting bolts.

[0023] Furthermore, each of the hopper positioning grooves is provided with a light-transmitting opening along the up-down direction, and a photoelectric sensor is provided on the frame, which is arranged below the conveying turntable and electrically connected to the control circuit. When the conveying turntable rotates, each of the hopper positioning grooves moves to above the photoelectric sensor one by one, and when the hopper positioning groove is located above the photoelectric sensor, the photoelectric sensor is aligned with the light-transmitting opening of each of the hopper positioning grooves in the up-down direction.

[0024] The relevant contents in the above technical solution are explained as follows:

[0025] 1. In the above scheme, the sensor counter is used to replace manual or weighing counting. The sensor counter can be a fiber optic sensor counter arranged in a counter-beam manner. The fiber optic sensor counter is arranged in the feeding port. When the tube needle falls and passes between the fiber optic sensor counters in the counter-beam manner, the fiber optic sensor counter sends a counting signal to the control circuit;

[0026] The sensor counter can also be a switch counter. When the tooth top beside each needle groove of the sorting wheel touches the switch counter, the switch counter sends a counting signal to the control circuit.

[0027] 2. In the above scheme, the control circuit is used to receive the counting signal of the sensor counter. When the count of the control circuit reaches a threshold, such as the count is cleared or the count reaches the upper limit, a control signal is sent to control the stepper motor to control the rotation of the conveying turntable, causing it to stop or rotate, so that each hopper receives the tube needles in batches according to a fixed number;

[0028] At the same time, the control circuit is also used to receive the signal of the photoelectric sensor. When the hopper is not placed in the hopper positioning slot, the photoelectric sensor sends a signal to the control circuit, and the control circuit triggers the alarm or the emergency stop of the equipment to prevent the tube needle from not falling into the hopper.

[0029] The control circuit capable of realizing the above functions is prior art and will not be elaborated in detail in the present invention.

[0030] 3. In the above scheme, in the tube needle receiving device, the hopper is in the shape of a shovel, the head of the shovel is an open shovel mouth, the middle of the shovel is a groove for holding the tube needle, and the opening of the groove faces upwards to be the receiving port;

[0031] An opening serving as a receiving port is provided at the upper end of the hopper for receiving the tube needles dropped from the discharge port. The tube needles are placed in the grooves of the hopper during transportation, thus reducing the probability of the tube needles being scattered due to equipment shaking during transportation.

[0032] 4. In the above scheme, the conveying turntable is provided with a lifting bolt. When the hopper is placed on the conveying turntable, the shovel mouth of the hopper is placed on the lifting bolt, so that the shovel mouth is raised. The original groove of the hopper is in a state of one side open and three sides surrounded, and the open part is the shovel mouth. When the shovel mouth is raised, the groove is surrounded on all sides, that is, surrounded by four surfaces consisting of the three-side groove walls except the shovel mouth and the inclined shovel bottom. In this way, when the tube pin falls into the groove of the hopper, it will not roll around due to shaking or unevenness, and the shovel mouth opened on one side of the hopper is convenient for pouring out the tube pin in it during packaging.

[0033] 5. In the above scheme, in the tube needle material receiving device, the upper surface of the conveying turntable is the hopper placement surface, and the hopper placement surface is provided with a hopper positioning groove, and each hopper positioning groove is provided with a hopper; the hopper positioning groove is used to position the hopper to prevent the hopper from displacement during the rotation process;

[0034] The hopper positioning groove can be a concave structure on the hopper placement surface, whose bottom plane is lower than the hopper placement surface, or it can be a basin-shaped structure on the hopper placement surface, whose bottom height is equal to or higher than the hopper placement surface, surrounded by a fence structure to surround and position the hopper.

[0035] 6. In the above scheme, in the tube needle counting feeding device, the adjustment plate divides the inside of the feed box into a feeding space with adjustable width, so that when adding tube needles, the operator can adjust the width of the feeding space forward and backward to adapt it to tube needles of different lengths. The width refers to the distance between the adjustment plate and the inner wall of the feed box in the front-to-back direction. When the tube needle falls into the feeding space, the tube needle is placed in the feed port with its length direction along the front-to-back direction. When the tube needle length matches the width, it can avoid the situation that when the tube needle length is less than the width of the feed port, the tube needle feeds the material in a disorderly manner to cause the material to be stuck.

[0036] 7. In the above scheme, in the tube needle counting and feeding device, the guide rail is positioned and attached to the circumferential surface of the sorting wheel, with the upper end corresponding to the discharge port and the lower end corresponding to the discharge port, and the corresponding gap size at both ends is smaller than the diameter of the tube needle, so that when the tube needle falls into the needle groove of the sorting wheel and is brought from the upper discharge port to the lower discharge port by the sorting wheel, the guide rail can block one side of the needle groove opening on the sorting wheel, so that the tube needle will not fall out of the sorting wheel groove during the process of rotating from the discharge port to the discharge port;

[0037] When the tube needle moves to the lower end of the guide rail with the sorting wheel and loses the blocking limit of the guide rail, it will fall off from the needle groove. Therefore, the lower end of the guide rail is the location of the feeding port.

[0038] 8. In the above scheme, in the tube-pin counting and feeding device, the tube-pin counting and feeding device is fixed on the base, and the base is connected to the frame by sliding positioning through the oblong hole. In the connected state, the bolt passes through the oblong hole and is threadedly connected to the frame. When moving the base, it is only necessary to loosen the bolt and slide the base forward and backward relative to the bolt to change the position of the base relative to the frame; thus, the upper and lower corresponding positions of the feed port and the hopper can be adjusted by changing the position of the base on the frame;

[0039] The sliding positioning method of the base and the frame can also be that a plurality of threaded holes are opened on the base along the front-to-back direction, and a plurality of threaded holes are correspondingly opened on the frame on the sliding path of the base. The different threaded holes between the base and the frame are connected by bolts to change the position of the base on the frame.

[0040] 9. In the above scheme, in the tube needle receiving device, a light-transmitting port is provided in the hopper positioning slot, and a photoelectric sensor is fixed below the light-transmitting port. The photoelectric sensor is a prior art and is used to detect whether there is a hopper in the hopper positioning slot. When the operator uses the hopper to perform tube needle packaging operations, if the operator does not put the hopper back in time, when the empty hopper positioning slot rotates to the receiving position below the discharge port, the dropped tube needles will scatter out, causing unnecessary losses. Therefore, when the photoelectric sensor detects that there is no hopper in the hopper positioning slot, its signal will be transmitted to the control circuit, and the control circuit is connected to the alarm or the emergency stop switch of the equipment, so that the alarm sounds or the conveyor turntable stops rotating, thereby reducing the losses caused by the operator's mistakes.

[0041] The working principle of the present invention is as follows:

[0042] In the working state, the sorting wheel is driven by the driving motor to rotate with the front-to-back direction as the rotating axis, and the conveying turntable rotates with the up-and-down direction as the rotating axis. The tube needles enter from the feeding port of the feeding box, and pass through the feeding space separated by the adjusting plate in the feeding box, and slide one by one from the feeding port of the feeding box to the needle groove of the sorting wheel. The tube needles rotate together with the sorting wheel in the needle groove. During the rotation process, the guide rail is attached to the side of the sorting wheel where the tube needle rotates from top to bottom to prevent the tube needle from falling off the sorting wheel; when the tube needle moves to the discharge port, it will fall from the needle groove due to gravity, and will pass through the optical fiber sensor counter during the falling process to complete the counting;

[0043] The tube needle receiving device is located below the discharge port. In the working state, the stepper motor drives the conveying turntable to drive each of the hoppers to move to the receiving position below the discharge port of the sorting wheel one by one. When the hopper is located at the receiving position, the receiving port of the hopper is aligned with the discharge port of the sorting wheel in the up and down direction, so that when the tube needle falls, the hopper can catch the tube needle;

[0044] When one of the hoppers stops at the receiving position to receive the tube needle, the stepper motor stops driving the conveying turntable, so that the hopper temporarily stops relative to the discharge port. At this time, the tube needle falls from the discharge port and passes through the sensor counter during the falling process. Every time a tube needle passes, the sensor counter will send a signal to the control circuit to increase the count by one.

[0045] When the count reaches the upper limit, the control circuit will control the stepper motor to drive the conveyor turntable to rotate, so that the hopper with a batch of tube needles is removed from the receiving position. After the removal, the count is reset to zero, and the control circuit will idle the stepper motor to drive the conveyor turntable to rotate, driving the next empty hopper to move toward the receiving position;

[0046] When the next empty hopper reaches the receiving position, the stepper motor stops driving the conveyor turntable again, so that the empty hopper stops at the receiving position, and the tube needle continues to fall and counts again until the count reaches the upper limit, and the feeding cycle is repeated;

[0047] In the conveying state, the hopper is positioned in the hopper positioning groove, and the shovel mouth of the hopper is raised by the jacking bolts. When the shovel mouth is raised, the groove in the bucket is surrounded on all sides, that is, it is surrounded by the groove walls on the three sides of the bucket and the inclined shovel bottom. In this way, when the tube needle falls into the groove of the hopper, it will not roll around due to shaking or unevenness. The shovel mouth opened on one side of the hopper is convenient for pouring out the tube needles during packaging. In addition, the hopper positioning groove prevents the hopper from tipping over due to shaking or instability of the equipment, reducing the risk of tube needles scattering.

[0048] When the hopper is transported to the packaging position, the operator takes the hopper and packages the needles in it. After packaging, he puts the empty hopper back. The empty hopper is sent back to the receiving position along the conveying turntable to continue receiving the fallen needles. If the operator fails to put the hopper back by mistake, the sensor below will send a signal to the control circuit, and the control circuit will control the alarm to sound or control the drive motor to stop the sorting wheel from rotating.

[0049] The advantages of the present invention are as follows:

[0050] 1. It is not easy to get stuck. The adjustment plate is set in the feed port, and the width is adjusted to match the tube needle to avoid the feeding space being too large so that the tube needles collide with each other during the falling process and get stuck.

[0051] 2. Stable transportation. The bucket-shaped design of the hopper prevents the tube needle from rolling around during transportation, making the tube needle more stable during transportation.

[0052] 3. Accurate counting: Fiber optic sensor counters are faster and more accurate than manual counting and weighing counting. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Attached Figure 1 A three-dimensional diagram of an embodiment of the present invention;

[0054] Attached Figure 2 For attachment Figure 1 A partial enlarged view of part A;

[0055] Attached Figure 3 It is a three-dimensional diagram of a tube needle counting and feeding device in an embodiment of the present invention;

[0056] Attached Figure 4 A three-dimensional diagram of a feed box in an embodiment of the present invention;

[0057] Attached Figure 5 An exploded view of a tube needle counting and feeding device in an embodiment of the present invention;

[0058] Attached Figure 6 It is a three-dimensional diagram of the tube needle material receiving device in the embodiment of the present invention;

[0059] Attached Figure 7 For attachment Figure 6 A partial enlarged view of part B;

[0060] Attached Figure 8 An exploded view of a tube needle material receiving device in an embodiment of the present invention;

[0061] Attached Fig. 9 It is a three-dimensional diagram of the hopper in the embodiment of the present invention.

[0062] In the above drawings: 1. Frame; 2. Sorting wheel; 3. First rotating shaft; 4. Feed box; 5. Sensor counter; 6. Feed inlet; 7. Discharge outlet; 8. Unloading outlet; 9. Conveying turntable; 10. Hopper; 11. Second rotating shaft; 12. Hopper placement surface; 13. Receiving port; 14. Adjustment plate; 15. Guide rail; 16. Base; 17. Long round hole; 18. Lifting bolt; 19. Shovel mouth; 20. Hopper positioning slot; 21. Light transmission port; 22. Photoelectric sensor; 23. Needle slot; 24. Driving motor; 25. Stepping motor; 26. Buffer plate; 27. Notch. DETAILED DESCRIPTION

[0063] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0064] Embodiment: The present invention will be clearly described below with diagrams and detailed descriptions. After understanding the embodiments of the present invention, any person skilled in the art can make changes and modifications based on the techniques taught by the present invention without departing from the spirit and scope of the present invention.

[0065] The terms used herein are only for describing specific embodiments and are not intended to be limiting of the present invention. Singular forms such as "a", "this", "here", "this" and "the" as used herein also include plural forms.

[0066] The terms “first”, “second”, etc. used in this document do not specifically refer to an order or sequence, nor are they used to limit the present case. They are only used to distinguish components or operations described with the same technical terms.

[0067] As used herein, “connected” or “positioned” may refer to two or more components or devices being in direct physical contact with each other, or being in indirect physical contact with each other, or may refer to two or more components or devices operating or moving with each other.

[0068] The terms “include,” “including,” “have,” etc. used in this document are open-ended terms, meaning including but not limited to.

[0069] The terms used in this document generally have the ordinary meaning of each term used in this field, in the context of the case and in the specific context, unless otherwise noted. Certain terms used to describe the present invention will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in the description of the present invention.

[0070] The terms "front", "back", "up", "down", "left", "right", etc. used in this article are directional terms. In this case, they are only used to illustrate the positional relationship between the structures, and are not used to limit the protection reaction of this case and the specific direction during actual implementation.

[0071] See attached Figure 1 To Attachment Fig. 9 A tube needle sorting device comprises a frame 1, a sorting wheel 2, a base 16, a tube needle counting and feeding device and a tube needle receiving device, wherein the sorting wheel 2 is rotatably positioned on the base 16 and driven to rotate by a driving motor 24, the driving motor 24 and the tube needle counting and feeding device are positioned on the base 16, and the base 16 and the tube needle receiving device are both positioned on the frame 1;

[0072] The base 16 is provided with an oblong hole 17 at the portion where it is connected to the frame 1. The length of the oblong hole 17 is set along the front-to-back direction, so that the base 16 is slidably positioned on the frame along the front-to-back direction.

[0073] The rotating shaft of the sorting wheel 2 is defined as the first rotating shaft 3, the axial direction of the first rotating shaft 3 is the front-to-back direction, the vertical direction is the up-down direction, and the direction perpendicular to the first rotating shaft 3 in the horizontal plane is the left-right direction.

[0074] As attached Figure 3 To Attachment Figure 5 As shown, the tube needle counting and feeding device includes a feed box 4, a sensor counter 5, an adjustment plate 14 and a guide rail 15;

[0075] The circumferential surface of the sorting wheel 2 is evenly distributed with a plurality of needle grooves 23. In the up-down direction, the upper end of the circumferential surface with the needle grooves 23 is a loading port, and the lower end is a unloading port 8;

[0076] The feed box 4 is positioned on the base 16. The feed box 4 is a prism-shaped funnel, with a larger opening opening upwards, which is the feed port 6, and a smaller opening opening downwards, which is the discharge port 7. The funnel is arranged above the sorting wheel 2, with the feed port 6 facing upwards, and the discharge port 7 facing downwards and correspondingly attached to the loading port of the sorting wheel 2. At the loading port, the discharge port 7 surrounds the needle groove of the sorting wheel 2 at that location. This docking method is to prevent the tube needle from leaking during the loading process;

[0077] The adjusting plate 14 is a trapezoidal plate, the wide bottom of which cooperates with the feeding port 6 of the feeding box 4, and the narrow bottom cooperates with the discharging port 7 of the feeding box 4. The adjusting plate 14 is assembled in the feeding box 4 to divide the inside of the feeding box 4 into a feeding space with adjustable front and rear widths. The adjusting plate 14 cooperates with the inner wall of the front side of the feeding box 4 to change the width of the feeding space so that its width matches the length of the tube needle, but the length of the feeding space in the left and right directions does not change;

[0078] The feed box 4 is provided with a buffer plate 26, and a notch 27 is provided on the narrow bottom of the adjustment plate 14. When installed, the buffer plate 26 is arranged in the discharge port 7 of the feed box 4 and embedded in the notch 27, so that when the tube needle falls into the feed box 4, it will first fall on the buffer plate 26 and then roll into the needle groove 23 of the sorting wheel 2, so as to avoid damage to the tube needle caused by falling too fast;

[0079] The guide rail 15 is positioned and attached to the circumferential surface of the sorting wheel 2. The guide rail 15 has a semicircular arc surface, which is attached to the circumferential surface of the sorting wheel 2 on the side moving from top to bottom. The upper end of the semicircular arc surface is connected to the discharge port 7 of the feed box 4, and the lower end of the semicircular arc surface is connected to the discharge port 8 of the sorting wheel 2, thereby blocking the opening side of the needle groove 23 on the sorting wheel 2, so that the tube needle does not separate from the sorting wheel 2 during the rotation process;

[0080] The sensor counter 5 is a pair of optical fiber sensor counters electrically connected to the control circuit, one of which is arranged at the lower end of the guide rail 15, and the other is fixed on the base through a bracket, so that the two optical fiber sensor counters are positioned at the position of the discharge port 8.

[0081] As attached Figure 6 To Attachment Fig. 9 Said tube needle receiving device comprises a conveying turntable 9, a plurality of hoppers 10 and a photoelectric sensor 22;

[0082] The conveying turntable 9 is driven to rotate by a stepping motor 25 controlled by the control circuit. The stepping motor 25 is arranged on the frame 1. The conveying turntable 9 is rotatably arranged on the stepping motor 25. The rotating shaft of the conveying turntable 9 is defined as the second rotating shaft 11. The axial direction of the second rotating shaft 11 is the up-down direction.

[0083] The upper surface of the conveying turntable 9 is a hopper placement surface 12, and a plurality of hopper positioning grooves 20 are provided on the hopper placement surface 12. The hopper positioning grooves 20 are used to position the hopper 10, and the bottom plane of the groove is lower than the hopper placement surface 12 in the vertical direction. Each of the hopper positioning grooves 20 is threadedly connected with a jacking bolt 18, and each of the jacking bolts 18 is arranged with equal wheel spacing around the second rotating shaft 11, and the jacking bolts 18 can be raised and lowered by threaded connection to adjust the distance between the upper end and the hopper placement surface 12;

[0084] The hopper 10 is in the shape of a shovel, and the shovel openings 19 of each shovel are correspondingly mounted on the jacking bolts 18, and are positioned in the hopper positioning groove 20 in an inclined state, so that each shovel is evenly distributed on the hopper placement surface 12 around the second rotating shaft 11, and the jacking bolts 18 can adjust the lifting height of the shovel openings 19 of each shovel when they are raised and lowered;

[0085] The photoelectric sensor 22 is fixed on the frame 1, and the photoelectric sensor 22 is arranged below the conveying turntable 9 and is electrically connected to the control circuit;

[0086] Each of the hopper positioning grooves 20 is provided with a light-transmitting opening 21 in the up-down direction, and the light-transmitting opening 21 is a through hole that passes through the conveying turntable 9 up and down. When the conveying turntable 9 rotates, each of the hopper positioning grooves 20 moves to above the photoelectric sensor 22 one by one, and when the hopper positioning groove 20 is located above the photoelectric sensor 22, the photoelectric sensor 22 is aligned with the light-transmitting opening 21 of each of the hopper positioning grooves 20 in the up-down direction.

[0087] The following is an explanation of other implementations and structural changes of the present invention:

[0088] 1. In the above embodiments, the sensor counter is an optical fiber sensor counter, and can also be a switch sensor counter. The switch of the switch sensor counter is set at the place where the tooth top of the sorting wheel passes. When a needle slot rotates, its tooth top will touch the switch, causing the switch counter to count. This structure can also achieve the effect of fast and accurate counting. This sensor counter should be included in the present invention, which can be understood and accepted by those skilled in the art.

[0089] 2. In the above embodiments, the feed box is funnel-shaped or rectangular box-shaped. As long as it is open at the top and bottom and has internal walls that can cooperate with the adjustment plate to form a feeding space with adjustable front and rear widths, this feed box structure should be included in the present invention, which can be understood and accepted by those skilled in the art.

[0090] 3. In the above embodiments, the light-transmitting opening is a through hole, and may also be a light-transmitting material embedded in the conveying turntable, such as glass or transparent plastic. Such a structure should be included in the present invention, which can be understood and accepted by those skilled in the art.

[0091] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A tube needle sorting device, comprising a frame (1) and a sorting wheel (2), wherein the sorting wheel (2) is rotatably connected to the frame (1), the rotating shaft of the sorting wheel (2) is defined as a first rotating shaft (3), and the axial direction of the first rotating shaft (3) is a front-to-back direction; characterized in that: The tube needle sorting device comprises a tube needle counting and feeding device and a tube needle receiving device; The tube needle counting and feeding device comprises a feeding box (4), a sensor counter (5) and a guide rail (15); The feed box (4) is positioned on the frame (1); the upper end opening of the feed box (4) serves as a feed port (6), and the lower end opening serves as a discharge port (7); the discharge port (7) is arranged corresponding to the sorting wheel (2) and is used to feed the sorting wheel (2); the sorting wheel (2) is provided with a discharge port (8), the sensor counter (5) is arranged in the discharge port (8), and the sensor counter (5) is electrically connected to a control circuit; The guide rail (15) is positioned and attached to the circumferential surface of the sorting wheel (2), the upper end of the guide rail (15) corresponds to the discharge port (7) of the feed box (4), the lower end of the guide rail (15) corresponds to the discharge port (8) of the sorting wheel (2), and the sensor counter (5) is positioned at the lower end of the guide rail (15); the guide rail (15) has a semicircular arc surface, the semicircular arc surface is attached to the circumferential surface of the sorting wheel (2) on the side moving from top to bottom, the upper end of the semicircular arc surface corresponds to the discharge port (7), and the lower end of the semicircular arc surface corresponds to the discharge port (8); The tube needle material receiving device comprises a conveying turntable (9) and a plurality of hoppers (10); The conveying turntable (9) is driven to rotate by the control circuit. The conveying turntable (9) is rotatably arranged on the frame (1). The rotation axis of the conveying turntable (9) is defined as the second rotation axis (11). The axial direction of the second rotation axis (11) is the up-down direction. The upper surface of the conveying turntable (9) is the hopper placement surface (12). The hoppers (10) are evenly distributed on the hopper placement surface (12) around the second rotation axis (11). A plurality of vertically adjustable lifting bolts (18) are arranged at equal wheel spacings on the hopper placement surface (12) around the second rotating shaft (11); the hopper (10) is in the shape of a shovel, and the shovel openings (19) of the respective shovels are correspondingly mounted on the lifting bolts (18), so that each shovel is positioned in an inclined state on the hopper placement surface (12); The conveying turntable (9) is provided with a plurality of hopper positioning grooves (20), and each hopper (10) is positioned and arranged in a one-to-one correspondence in the hopper positioning groove (20); each hopper positioning groove (20) is provided with a light-transmitting opening (21) in the up-down direction; a photoelectric sensor (22) is provided on the frame (1), and the photoelectric sensor (22) is arranged below the conveying turntable (9) and is electrically connected to the control circuit; when the conveying turntable (9) rotates, each hopper positioning groove (20) moves to above the photoelectric sensor (22) one by one, and when the hopper positioning groove (20) is located above the photoelectric sensor (22), the photoelectric sensor (22) is aligned with the light-transmitting opening (21) of each hopper positioning groove (20) in the up-down direction; The upper end of the hopper (10) is open as a material receiving port (13). During operation, each of the hoppers (10) is driven by the conveying turntable (9) to move successively to a material receiving position below the material discharge port (8). When the hopper (10) is located at the material receiving position, the material receiving port (13) of the hopper (10) is aligned with the material discharge port (8) in the upper and lower directions.

2. The tube needle sorting device according to claim 1, characterized in that: The tube needle counting and feeding device also includes an adjustment plate (14); The adjustment plate (14) is slidably assembled in the feed box (4) along the front-to-back direction, thereby dividing the interior of the feed box (4) into a feeding space with adjustable front-to-back width.

3. The tube needle sorting device according to claim 2, characterized in that: The feed box (4) is a prism-shaped funnel, the larger opening of which is the feed port (6) and the smaller opening is the discharge port (7). The funnel is positioned on the frame (1) and arranged above the sorting wheel (2) in such a manner that the feed port (6) faces upward and the discharge port (7) faces downward and corresponds to the sorting wheel (2); The adjustment plate (14) is a trapezoidal plate, the wide bottom of which cooperates with the feed opening (6) of the feed box (4), and the narrow bottom of which cooperates with the discharge opening (7) of the feed box (4), so that the adjustment plate (14) is assembled in the feed box (4).

4. The tube needle sorting device according to claim 1, characterized in that: The tube needle sorting device also includes a base (16); the base (16) is slidably positioned on the frame (1), and the sliding direction is the front-back direction. The feed box (4), the sensor counter (5) and the guide rail (15) are all fixedly arranged on the base (16), and the sorting wheel (2) is rotatably positioned on the base (16).

5. The tube needle sorting device according to claim 4, characterized in that: The base (16) is provided with an oblong hole (17) at a portion where it is connected to the frame (1), and the length of the oblong hole (17) is arranged along the front-rear direction.

6. The tube needle sorting device according to claim 1, characterized in that: A jacking bolt (18) is provided in each of the hopper positioning grooves (20), and each of the hoppers (10) is positioned in the hopper positioning grooves (20) in a one-to-one correspondence with the shovel mouth (19) resting on the jacking bolt (18).

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