An automatic needle detection device

Abstract

The utility model relates to needle detection technical field especially, a kind of needle automatic detection device, including workbench, mobile frame is slidably arranged on workbench, detection frame is connected on mobile frame, detection frame bottom is provided with detection plate, positioning fixture for needle positioning is provided below detection frame, positioning fixture is connected between lifting, gas supply device is also set up on workbench and is lifted, gas supply device can be communicated with needle, detection plate is connected with air pressure detection device, air pressure detection device is used to detect gas passing through needle;By detecting air pressure, whether needle tube and needle are unobstructed can be judged. Entire automatic detection device can simultaneously carry out automatic detection to multiple needles, not only high efficiency, but also high accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of needle detection technology, specifically an automatic needle detection device. Background Technology

[0002] Chinese Patent Publication No. CN223474222U discloses a gourd-shaped inner-bore injection needle holder for use with a disposable syringe. It includes a needle body and a needle holder assembly, with the needle holder assembly located at the bottom of the needle body and the two fixed together by an adhesive. A top cover protective assembly is provided over the needle holder to protect the needle body. This needle is essentially a disposable injection needle, requiring use with a syringe, similar to medical injection needles.

[0003] In needle assembly and processing, the key step is the precise assembly of the needle hub assembly (needle hub) and the needle body (needle tube) to form the finished needle. This requires operators to tightly connect the two, ensuring a firm and seamless connection, and that the needle and needle hub are in a state of communication. After assembly, the continuity of the needle must be rigorously tested, because only when the internal pathway of the needle is unobstructed can the needle function properly. Currently, testing mainly relies on manual labor, with inspectors judging the pathway condition by visual inspection or simple tools. However, manual testing is affected by subjectivity and fatigue, resulting in low efficiency and difficulty in meeting the needs of large-scale testing. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an automatic needle detection device.

[0005] To achieve the aforementioned objective, this utility model provides an automatic needle detection device, comprising a worktable, a movable frame slidably mounted on the worktable, a detection frame connected to the movable frame, a detection plate at the bottom of the detection frame, and a positioning fixture for needle positioning below the detection frame. The positioning fixture and the detection frame are vertically connected. An air supply device is also vertically mounted on the worktable, which can communicate with the needle and the detection plate. A gas pressure detection device is connected to the detection plate and is used to detect the gas passing through the needle.

[0006] Furthermore, the positioning fixture includes a lifting plate that is connected to the detection frame for lifting, a driving device disposed on the lifting plate, and a clamping rod assembly connected to the driving device and located below the detection plate. The clamping rod assembly includes two clamping rods, and the driving device can drive the two clamping rods to slide, forming a positioning groove for clamping and positioning the needle between the two clamping rods.

[0007] Furthermore, the drive device includes a finger cylinder.

[0008] Furthermore, the bottom of the testing frame is provided with a connecting plate, the bottom of the connecting plate is provided with a testing groove for needle insertion, and the top of the testing plate is provided with a pipe connector, the bottom of the pipe connector is connected to the testing groove, and the top is connected to the pipeline of the air pressure testing device.

[0009] Furthermore, the air supply device includes an air supply plate that is lifted and installed above the worktable. The air supply plate has an air supply channel inside it, and an air supply head that communicates with the air supply channel is installed on the top of the air supply plate. The top of the air supply head can extend to the bottom of the needle to supply air.

[0010] Furthermore, the testing frame is connected to the movable frame in a lifting manner.

[0011] Furthermore, the workbench is also equipped with a limiting device for limiting the detection frame.

[0012] Furthermore, the limiting device includes a mounting frame set on the workbench and a limiting roller rotatably mounted on the mounting frame.

[0013] Furthermore, the sliding of the movable frame, the lifting of the positioning fixture, and the lifting of the air supply device are all driven by cylinders.

[0014] Furthermore, the air pressure detection device includes a detection control board and a pressure sensor mounted on the detection control board.

[0015] The technical solution provided by this utility model has at least the following technical effects: This utility model provides an automatic needle detection device that uses a positioning clamp to hold and position the needle, then moves and rises it, connecting it to the bottom of the detection plate. Next, a sliding frame moves the needle above the air supply device. The air supply device then moves upward, connecting itself to the bottom of the needle. The air supply device then begins supplying air. If there is no obstruction between the needle and the syringe, air will pass through the needle and syringe, and then be delivered to the air pressure detection device via the detection plate. By detecting the air pressure, the patency of the needle and syringe can be determined. The entire automatic detection device can simultaneously detect multiple needles, offering high efficiency and accuracy. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the automatic needle detection device according to an embodiment of the present invention; Figure 2 This is a partial structural diagram of the automatic needle detection device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the detection plate in an embodiment of the present invention; Figure 4 This is a schematic diagram of the clamping rod assembly according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the air supply plate in an embodiment of the present utility model.

[0018] Key reference numerals in the attached drawings: 1. Workbench; 2. Moving frame; 3. Testing frame; 4. Testing plate; 5. Air supply device; 51. Air supply plate; 511. Air supply channel; 512. Air supply head; 6. Air pressure detection device; 61. Testing control board; 62. Pressure sensor; 7. Lifting plate; 8. Drive device; 9. Clamping rod assembly; 91. Clamping rod; 92. Positioning groove; 10. Connecting plate; 11. Testing groove; 12. Pipe connector; 13. Mounting frame; 14. Limiting roller. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0020] According to an embodiment of the present utility model: as follows Figures 1-5 As shown, this embodiment discloses an automatic needle detection device, including a workbench 1. A movable frame 2 is slidably arranged on the workbench 1. The movable frame 2 can slide laterally on the workbench 1 via, but not limited to, a cylinder and a slide rail. A detection frame 3 is connected to the movable frame 2. A detection plate 4 is arranged at the bottom of the detection frame 3. A positioning fixture for needle positioning is arranged below the detection frame 3. The positioning fixture is vertically connected to the detection frame 3. The positioning fixture can be driven to rise and fall by, but not limited to, a cylinder. An air supply device 5 is also vertically arranged on the workbench 1. Similarly, the rise and fall of the air supply device 5 can also be driven by, but not limited to, a cylinder. The air supply device 5 can be connected to the needle and the detection plate 4. A gas pressure detection device 6 is connected to the detection plate 4. The gas pressure detection device 6 is used to detect the gas passing through the needle.

[0021] Detection Principle: The positioning fixture descends to clamp and fix the needle on the worktable 1, then rises to connect the needle with the detection plate 4. Next, the moving frame 2 moves the detection frame 3, bringing the needle above the air supply device 5. Then, the air supply device 5 rises until it connects with the bottom of the needle. At this point, the air supply device 5 begins supplying air, and the air pressure detection device 6 determines the patency between the needle holder and the needle tube by detecting the air pressure after the gas flows through the air supply device 5, the needle, and the detection plate 4. The entire automatic detection device can simultaneously detect multiple needles, offering both high efficiency and high accuracy.

[0022] According to another preferred embodiment of the present invention: as follows: Figure 1 , Figure 4 As shown, in this embodiment, the positioning fixture includes a lifting plate 7 connected to the detection frame 3 for lifting, a driving device 8 disposed on the lifting plate 7, and a clamping rod assembly 9 connected to the driving device 8 and located below the detection plate 4. The clamping rod assembly 9 consists of two clamping rods 91, which are driven by the driving device 8 to slide. A positioning groove 92 for clamping and positioning the needle is formed between the two clamping rods 91. The lifting and lowering of the detection plate 4 is driven by a cylinder, and the driving device 8 can be, but is not limited to, a finger cylinder. Finger cylinders are provided on both sides of the lifting plate 7. The two output ends of the finger cylinders are connected to the clamping rods 91. The finger cylinders drive the two clamping rods 91 to move towards or away from each other, thereby realizing the loading and unloading operation of the needle. The cylinder can drive the lifting plate 7 to move the clamping rod assembly 9 and the needle up and down.

[0023] According to another preferred embodiment of the present invention: as follows: Figure 3 As shown, in this embodiment, the bottom of the detection frame 3 is provided with a connecting plate 10, and the bottom of the connecting plate 10 is provided with a detection groove 11 for needle insertion. The top of the detection plate 4 is provided with a pipe connector 12, the bottom of which is connected to the detection groove 11, and the top of which is connected to the air pressure detection device 6 through a pipeline. By raising and lowering the lifting plate 7, the top of the needle can be inserted into the detection groove 11, thereby connecting the needle tube to the detection groove 11, and then connecting it to the air pressure detection device 6 through the pipe connector 12, so that the air from the air supply device 5 can be transmitted to the air pressure detection device 6 for detection through the needle.

[0024] According to another preferred embodiment of the present invention: as follows: Figure 1 , Figure 5As shown, in this embodiment, the air supply device 5 includes an air supply plate 51 that is vertically mounted above the worktable 1. The air supply plate 51 is driven to rise and fall by a cylinder. The air supply plate 51 has an internal air supply channel 511 and is connected to an air pipe (not shown), which communicates with the air supply channel 511. An air supply head 512 is located at the top of the air supply plate 51, communicating with the air supply channel 511, and its top extends to the bottom of the needle for air supply. When the moving frame 2 moves the needle to directly above, the cylinder drives the air supply plate 51 upward, causing the air supply head 512 to insert into the bottom of the needle sheath for air supply.

[0025] According to another preferred embodiment of the present invention: as follows: Figure 1 , Figure 2 As shown, in order to enable the entire automatic needle detection device to adapt to the detection of needles of different heights, in this embodiment, the detection frame 3 and the moving frame 2 are connected by a lifting method. The two sides of the detection frame 3 are slidably connected to the moving frame 2 by means of slide rails, and the height of the detection frame 3 is adjusted by handwheel and screw transmission mechanism so that the automatic needle detection device can adapt to the detection of needles of different heights.

[0026] According to another preferred embodiment of the present invention: as follows: Figure 1 As shown, to ensure greater stability of the testing frame 3 during movement, a limiting device is also provided on the workbench 1 to limit the movement of the testing frame 3. This limiting device includes a mounting bracket 13 installed on the workbench 1 and limiting rollers 14 rotatably mounted on the mounting bracket 13. Two sets of both the mounting bracket 13 and the limiting rollers 14 are provided, distributed on both sides of the testing frame 3. During the movement of the testing frame 3, the limiting rollers 14 remain in contact with the surface of the testing frame 3 to ensure stability of the testing frame 3 when the air supply plate 51 moves upward.

[0027] According to another preferred embodiment of the present invention: as follows: Figure 2 As shown, in this embodiment, the air pressure detection device 6 includes a detection control board 61 and pressure sensors 62 disposed on the detection control board 61. The number of pressure sensors 62 is adapted to the number of pipe connectors 12. The pipe connectors 12 are responsible for supplying air to the pressure sensors 62, which then transmit the signal to the detection control board 61 to measure the pressure. If there is no air pressure value or the air pressure value does not meet the standard, the needle can be determined to be a defective product, indicating that the needle hub and the needle tube are not connected or the connection is poor.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic needle detection device, characterized in that, The device includes a workbench (1), on which a movable frame (2) is slidably mounted, and a detection frame (3) is connected to the movable frame (2). A detection plate (4) is provided at the bottom of the detection frame (3), and a positioning fixture for needle positioning is provided below the detection frame (3). The positioning fixture is connected to the detection frame (3) in a lifting manner. An air supply device (5) is also provided on the workbench (1). The air supply device (5) can communicate with the needle and the detection plate (4). A gas pressure detection device (6) is connected to the detection plate (4). The gas pressure detection device (6) is used to detect the gas passing through the needle.

2. The automatic needle detection device according to claim 1, characterized in that, The positioning fixture includes a lifting plate (7) that is vertically connected to the detection frame (3), a driving device (8) disposed on the lifting plate (7), and a clamping rod assembly (9) connected to the driving device (8) and located below the detection plate (4). The clamping rod assembly (9) includes two clamping rods (91). The driving device (8) can drive the two clamping rods (91) to slide, and a positioning groove (92) for needle clamping and positioning is formed between the two clamping rods (91).

3. The automatic needle detection device according to claim 2, characterized in that, The drive device (8) includes a finger cylinder.

4. The automatic needle detection device according to claim 2, characterized in that, The bottom of the testing frame (3) is provided with a connecting plate (10), the bottom of the connecting plate (10) is provided with a testing groove (11) for needle insertion, the top of the testing plate (4) is provided with a pipe connector (12), the bottom of the pipe connector (12) is connected to the testing groove (11), and the top is connected to the pipeline of the air pressure testing device (6).

5. The automatic needle detection device according to claim 1, characterized in that, The air supply device (5) includes an air supply plate (51) that is lifted and installed above the workbench (1). The air supply plate (51) has an air supply channel (511) inside it. The top of the air supply plate (51) is provided with an air supply head (512) that communicates with the air supply channel (511). The top of the air supply head (512) can extend to the bottom of the needle to supply air.

6. The automatic needle detection device according to claim 1, characterized in that, The testing frame (3) is connected to the moving frame (2) by lifting.

7. The automatic needle detection device according to any one of claims 1-6, characterized in that, The workbench (1) is also equipped with a limiting device for limiting the detection frame (3).

8. The automatic needle detection device according to claim 7, characterized in that, The limiting device includes a mounting frame (13) set on the workbench (1) and a limiting roller (14) rotatably mounted on the mounting frame (13).

9. The automatic needle detection device according to any one of claims 1-6, characterized in that, The sliding of the movable frame (2), the lifting and lowering of the positioning fixture, and the lifting and lowering of the air supply device (5) are all driven by cylinders.

10. The automatic needle detection device according to any one of claims 1-6, characterized in that, The air pressure detection device (6) includes a detection control board (61) and a pressure sensor (62) installed on the detection control board (61).

Images