Fully automatic built-in insulin needle assembly equipment

Abstract

The present invention discloses a fully automatic insulin embedded needle assembly device, which belongs to the field of insulin needle processing technology. The present invention includes a workbench and a push-pull mechanism, wherein a second push cylinder is installed on the upper side of the workbench, and a single chuck is installed on the lower side of the output end of the second push cylinder, a third push cylinder is provided on the lower side of the second push cylinder, and an immersion oil tank is installed on the upper end of the third push cylinder. The present invention has the advantages of being able to quickly vibrate the excess oil on the needle surface to separate it from the needle, thereby avoiding the oil from easily dripping from the needle after oil immersion under the action of gravity, and the problem of dripping and splashing when the assembly equipment quickly transfers the needle, and the automatic replacement of the oil during oil immersion, thereby avoiding the problem of impurities, metal chips and other pollutants gradually mixing into the oil as the oil immersion process proceeds, thereby affecting the subsequent use of the needle.

Description

Technical Field

[0001] The present invention belongs to the technical field of insulin needle processing, and in particular relates to full-automatic insulin built-in needle assembly equipment. Background Art

[0002] Insulin is a protein hormone secreted by pancreatic beta cells in the pancreas in response to endogenous or exogenous substances such as glucose, lactose, ribose, arginine, and glucagon. Insulin, as a drug for inhibiting diabetes, is mainly administered subcutaneously so that patients can quickly absorb it and achieve the purpose of treatment. When injecting insulin, an insulin needle is required, and insulin needles are disposable items. Therefore, they are often produced using fully automatic assembly equipment. The fully automatic assembly of insulin needles on the production line often includes multiple steps such as parts preparation, needle seat loading, needle pickup and insertion, push rod installation, spring installation, oil immersion lubrication, testing, and packaging. Among them, the oil immersion lubrication process of the insulin needle is very important during assembly. It is an important step to reduce friction and protect the insulin needle during subsequent use.

[0003] However, when existing built-in needle assembly equipment performs oil immersion treatment, the needle is often immersed in an open oil storage tank, and then removed from the oil tank after the needle is immersed in oil. At this time, a certain amount of excess oil will adhere to the surface of the needle. Some light mineral oils or low-viscosity synthetic oils have good fluidity and are easy to drip from the oil-immersed needle under the action of gravity. In addition, the assembly equipment often transfers the needle at a fast speed, which makes dripping and splashing more likely to occur. Therefore, during large-scale and long-term production, the dripping and splashing oil will cause certain pollution to the processing environment and also cause oil waste.

[0004] Therefore, we proposed a fully automatic insulin built-in needle assembly device to solve the above problems. Summary of the Invention

[0005] In view of the existing technology, the existing embedded needle assembly equipment often immerses the needle in an open oil storage tank during oil immersion treatment, and then removes the needle from the oil tank after the needle is immersed in oil. At this time, a certain amount of excess oil will adhere to the surface of the needle. Some light mineral oils or low-viscosity synthetic oils have good fluidity and are easy to drip from the needle after oil immersion under the action of gravity. In addition, the assembly equipment often transfers the needle at a faster speed, which makes dripping and splashing more likely to occur. Therefore, during large-scale and long-term production, the dripping and splashing oil will cause certain pollution to the processing environment and also cause oil waste. The purpose of the present invention is to provide a fully automatic insulin embedded needle assembly equipment.

[0006] In order to solve the above problems, the technical solution adopted by the present invention is as follows: a fully automatic insulin embedded needle assembly device, including a working frame and a push-pull mechanism, a second push cylinder is installed on the upper side of the working frame, and a single chuck is installed on the lower side of the output end of the second push cylinder, a third push cylinder is provided on the lower side of the second push cylinder, and an immersion oil tank is installed on the upper end of the third push cylinder, the push-pull mechanism for vibrating oil removal is provided on both sides of the interior of the immersion oil tank, the push-pull mechanism includes a driving gear installed in the lower middle part of the interior of the immersion oil tank, and the lower sides of the driving gear are connected to the The cam is provided with a sliding block in the middle of the screw, and a connecting rod is installed above the sliding block. A first piston disc is installed on the top of the connecting rod, and a first piston cylinder is provided on the outside of the first piston disc. A solenoid valve is installed in the middle of the upper part of the first piston cylinder, and a mounting joint is connected to the top of the solenoid valve. A second piston cylinder is connected to one side above the mounting joint, and a piston push rod is provided at the inner front end of the second piston cylinder, a pressure head is installed at the front end of the piston push rod, and an ultrasonic vibrator is installed at the inner middle part of the pressure head.

[0007] Furthermore, a feeding turntable is installed on the other side above the working frame, and receiving sockets are distributed in a ring shape on the outside of the feeding turntable, and a first pushing cylinder is installed in the middle part above the working frame.

[0008] Furthermore, a lifting frame is provided on the top of the first pushing cylinder, and a rotating seat is installed at the middle of the front end of the lifting frame. A double chuck is installed at the front end of the rotating seat, and the end of the double chuck clamps the needle.

[0009] Furthermore, guide rods are fixed on both sides of the middle part of the sliding block, and the driving gear is rotatably connected to the screw through the driven gear, and the sliding block is slidably connected to the inner wall of the oil immersion tank through the screw and the guide rod, and the first piston disc is slidably connected to the first piston cylinder through the sliding block and the connecting rod.

[0010] Furthermore, a pressure relief valve is connected to the rear of the second piston cylinder, and the pressure relief valve, the second piston cylinder, the mounting joint and the solenoid valve are connected, and the solenoid valve is connected to the first piston cylinder, and an air intake valve is connected to the upper side of the outer side of the first piston cylinder.

[0011] Furthermore, an oil immersion mechanism for replaceable immersion oil is provided in the inner middle part of the oil immersion box, and the oil immersion mechanism includes a third piston cylinder connected to the outer side of the middle part of the first piston cylinder, and an air guide pipe is connected to the lower side of the third piston cylinder.

[0012] Furthermore, the other side of the air guide tube is connected to the upper part thereof with a fourth piston cylinder, and a second piston disc is provided at the lower part inside the fourth piston cylinder, and the fourth piston cylinder, the air guide tube and the third piston cylinder are connected.

[0013] Furthermore, an air distribution pipe is connected to the upper middle portion of the air guide pipe, and an air bag is provided on one side above the air distribution pipe, and the air distribution pipe and the air guide pipe are in communication.

[0014] Furthermore, a liquid inlet valve is installed on the upper outer side of the fourth piston cylinder, and a liquid guide tube is connected above the liquid inlet valve, and an oil storage chamber is provided at the top of the liquid guide tube.

[0015] Furthermore, an oil outlet valve is installed on one side of the lower exterior of the fourth piston cylinder, and a lower oil pipe is connected below the oil outlet valve, and an oil collecting chamber is connected below the lower oil pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can finally clamp the needle tip by the pressure head by moving the first piston disc upward, and the high-frequency vibration of the ultrasonic vibrator in the pressure head on the needle tip after the needle tip is immersed in oil can make the excess oil on the needle tip surface vibrate quickly to separate from the needle tip, avoiding the problem of oil dripping from the needle tip after oil immersion under the action of gravity, and the problem of dripping and splashing when the assembly equipment quickly transfers the needle tip, which is conducive to ensuring the cleanliness of the processing environment and avoiding waste of oil. The oil is subjected to high-frequency mechanical force, which destroys the adhesion between the oil and the needle tip and the cohesion of the oil itself, making it easier for the oil to separate from the needle tip surface into small oil droplets, thereby improving the thoroughness of oil removal.

[0018] 2. The present invention enables the gas in the third piston cylinder to move left and right through the up and down movement of the first piston disc, thereby driving the up and down movement of the second piston disc, so that the fourth piston cylinder can finally realize the reciprocating oil filling and oil discharge process, so that the oil can be automatically replaced during oil immersion, avoiding the problem that impurities, metal chips and other pollutants are gradually mixed into the oil as the oil immersion process proceeds, thereby affecting the subsequent use of the needle. At the same time, the replaced oil can allow each needle to be immersed in new oil, avoiding the problem of deterioration caused by long-term use of a large oil immersion tank. At the same time, there is no need for manual regular replacement of the oil, avoiding equipment shutdown caused by oil replacement, so that the oil immersion operation can be carried out continuously, improving the utilization rate of production equipment, and thus improving overall production efficiency.

[0019] 3. The present invention utilizes the up-and-down movement of the first piston disc within the first piston cylinder, utilizing the transmission of air pressure to achieve simultaneous oil immersion, oil change, and vibration removal of excess oil on the needles. This enhances the continuity and synchronization of the equipment, significantly improving production efficiency. The continuous, coordinated operation helps ensure that each needle is subjected to consistent treatment conditions during the oil immersion and oil removal process, reducing variations caused by different equipment or operating steps, thereby improving the stability and consistency of product quality. In the production of insulin needles, this helps ensure that the performance and quality of each needle meet high standards, reducing the rate of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall external three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the lifting frame of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the second push cylinder of the present invention;

[0023] Figure 4 This is a schematic diagram of the external three-dimensional structure of the oil immersion tank of the present invention;

[0024] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the oil immersion tank of the present invention;

[0025] Figure 6 It is a schematic diagram of a partially cutaway three-dimensional structure of the first piston cylinder of the present invention;

[0026] Figure 7 This is a schematic diagram of the second piston cylinder separation three-dimensional structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the separated three-dimensional structure of the pressure head of the present invention;

[0028] Figure 9 is a schematic diagram of a partially cutaway three-dimensional structure of a fourth piston cylinder of the present invention;

[0029] Figure 10 For the present invention Figure 9 Schematic diagram of the three-dimensional structure viewed from above.

[0030] In the figure: 1. Working frame; 2. Feed turntable; 3. Socket; 4. First push cylinder; 5. Lifting frame; 6. Rotating seat; 7. Double chuck; 8. Needle; 9. Second push cylinder; 10. Single chuck; 11. Third push cylinder; 12. Immersion oil tank; 13. Push-pull mechanism; 1301. Driving gear; 1302. Driven gear; 1303. Screw; 1304. Sliding block; 1305. Connecting rod; 1306. Guide rod; 1307. First piston disc; 1308. First piston cylinder; 1309. Solenoid valve; 1310 , installation joint; 1311, second piston cylinder; 1312, piston push rod; 1313, pressure head; 1314, pressure relief valve; 1315, ultrasonic vibrator; 14, oil immersion mechanism; 1401, third piston cylinder; 1402, air guide tube; 1403, fourth piston cylinder; 1404, second piston disc; 1405, air distribution pipe; 1406, inflation bag; 1407, liquid inlet valve; 1408, liquid guide tube; 1409, oil storage chamber; 1410, oil outlet valve; 1411, lower oil pipe; 1412, oil collection chamber; 15, air inlet valve. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to specific embodiments.

[0032] In order to solve the problem of dripping and splashing after the needle is immersed in oil, Figure 1 - Figure 8 As shown:

[0033] The fully automatic insulin embedded needle assembly equipment includes a working frame 1 and two sets of push-pull mechanisms 13 symmetrically arranged at the bottom of the immersion oil tank 12. A second pushing cylinder 9 is installed on the upper side of the working frame 1 using a bracket, and a single chuck 10 is installed on the lower side of the output end of the second pushing cylinder 9. The single chuck 10 is composed of an existing clamping cylinder and a soft chuck. A third pushing cylinder 11 is provided on the lower side of the second pushing cylinder 9, and an immersion oil tank 12 is installed on the upper end of the third pushing cylinder 11. A feeding turntable 2 is installed on the other side above the working frame 1. The feeding turntable 2 is an existing feeding turntable driven by a servo motor, and the outer ring of the feeding turntable 2 is provided with a receiving socket 3, which is used to vertically connect the needle 8. A first pushing cylinder 4 is installed in the upper middle part of the working frame 1 and is located between the feeding turntable 2 and the second pushing cylinder 9. A lifting frame is provided on the top of the first pushing cylinder 4 The chuck 8 is moved upwards by the third push cylinder 11 so that the needle 8 can be inserted into the oil immersion tank 12 for the subsequent treatment of oil immersion and removal of excess oil.

[0034] The push-pull mechanism 13 includes a driving gear 1301 installed in the middle of the lower part of the oil immersion tank 12, and driven gears 1302 are meshed on both sides of the lower side of the driving gear 1301, and a screw 1303 is integrated on the other side of the driven gear 1302. The middle part of the screw 1303 is threadedly connected to a sliding block 1304, and guide rods 1306 are fixed on both sides of the middle part of the sliding block 1304. The driving gear 1301 is rotatably connected to the screw 1303 through the driven gear 1302, and the sliding block 1304 is slidably connected to the inner wall of the oil immersion tank 12 through the screw 1303 and the guide rod 1306. The guide rod 1306 can limit the movement of the sliding block 1304, and the upper part of the sliding block 1304 is rotatably connected to a connecting rod 1305. A first piston disc 1307 is rotatably mounted on the top of the connecting rotating rod 1305, and a first piston cylinder 1308 is provided on the outside of the first piston disc 1307. The first piston disc 1307 is slidably connected to the first piston cylinder 1308 through the sliding block 1304 and the connecting rotating rod 1305. The driving gear 1301 driven by the reduction motor can drive the driven gear 1302 and the screw rod 1303 to rotate forward and backward, thereby causing the sliding block 1304 to slide left and right on the screw rod 1303. When the sliding block 1304 moves left and right, the connecting rotating rod 1305 causes the first piston disc 1307 to slide up and down in the first piston cylinder 1308, thereby providing power for subsequent clamping vibration and oil replacement.

[0035] The upper parts of the left and right groups of first piston cylinders 1308 are both connected and installed with electromagnetic valves 1309, and the upper part of the electromagnetic valves 1309 is connected with a mounting joint 1310, and the upper side of the mounting joint 1310 is connected with a second piston cylinder 1311, and the inner front end of the second piston cylinder 1311 is provided with a piston push rod 1312, and the front end of the piston push rod 1312 is installed with a pressure head 1313, and the inner middle part of the pressure head 1313 is installed with an ultrasonic vibrator 1315, and the rear part of the second piston cylinder 1311 is connected with a pressure relief valve 1314, and the pressure relief valve 1314, the second piston cylinder 1311, the mounting joint 1310 and the electromagnetic valve 1309 are connected, and the electromagnetic valve 1309 is connected with the first piston cylinder 1308, and the upper side of the outer side of the first piston cylinder 1308 is connected with an air intake valve 15;

[0036] When the first piston disc 1307 and the first piston cylinder 1308 move upward, the electromagnetic valve 1309 opens. At this time, the air in the first piston cylinder 1308 is squeezed upward, and the air pressure will squeeze the piston push rod 1312 in the second piston cylinder 1311 forward along the mounting joint 1310, so that the piston push rod 1312 pushes the pressure head 1313 forward. At this time, the two sets of symmetrically arranged pressure heads 1313 will clamp the mounting end of the needle 8 inserted into the immersion oil tank 12. After clamping, the electromagnetic valve 1309 is closed to prevent the second When the piston cylinder 1311 is deflated, the ultrasonic vibrator 1315 in the pressure head 1313 can vibrate the needle 8 at high frequency after the needle 8 is immersed in oil, causing the needle 8 to vibrate and separate on the surface. The excess pressure received by the second piston cylinder 1311 can be released through the pressure relief valve 1314 to prevent the pressure in the pressure head 1313 from being excessive and damaging the needle 8. The air inlet valve 15 opened in the first piston cylinder 1308 can re-inflate the first piston cylinder 1308 when the first piston disc 1307 moves downward.

[0037] By moving the first piston disk 1307 upward, the pressure head 1313 is finally clamped on the needle 8, and after the needle 8 is immersed in oil, the ultrasonic vibrator 1315 in the pressure head 1313 vibrates the needle 8 at high frequency, which can make the excess oil on the surface of the needle 8 vibrate quickly to separate from the needle 8. The oil is subjected to the high-frequency mechanical force, which destroys the adhesion between the oil and the needle 8 and the cohesion of the oil itself, making it easier for the oil to separate from the surface of the needle 8 into small oil droplets, thereby improving the thoroughness of oil removal.

[0038] In order to solve the problem that the exposed oil immersion tank is prone to pollution and deterioration due to long-term use, Figure 4 、 Figure 5 、 Figure 9 and Figure 10 As shown:

[0039] An oil immersion mechanism 14 is provided at the middle part of the inner side of the oil immersion box 12, and the oil immersion mechanism 14 includes a third piston cylinder 1401 connected to the outer side of the middle part of the first piston cylinder 1308, and an air guide pipe 1402 is connected to the lower side of one side of the third piston cylinder 1401, and the upper side of the other side of the air guide pipe 1402 is connected to the fourth piston cylinder 1403, and a second piston disc 1404 is provided at the lower part of the fourth piston cylinder 1403, and the fourth piston cylinder 1403, the air guide pipe 1402 and the third piston cylinder 1401 are connected. A piston plate is provided on the side of the third piston cylinder 1401 near the first piston cylinder 1308, which can move toward the side of the fourth piston cylinder 1403 when the first piston disc 1307 moves upward to transmit air pressure, so that the gas is pressed into the fourth piston cylinder 1403 by the air guide pipe 1402. At this time, the second piston disc 1404 in the fourth piston cylinder 1403 moves upward under the air pressure;

[0040] An air distribution pipe 1405 is connected to the upper middle portion of the air guide tube 1402, and an air bag 1406 is provided on one side of the upper portion of the air distribution pipe 1405. The air distribution pipe 1405 and the air guide tube 1402 are in communication. Through the air distribution pipe 1405, part of the gas in the air guide tube 1402 can be filled into the air bag 1406, causing the hollow annular air bag 1406 to expand and wrap and squeeze the needle 8, thereby sealing the needle 8 and the top end of the fourth piston cylinder 1403 to prevent oil splashing during oil immersion.

[0041] An inlet valve 1407 is installed on the upper outer side of the fourth piston cylinder 1403, and a liquid guide tube 1408 is connected to the upper part of the inlet valve 1407. An oil storage chamber 1409 is provided on the top of the liquid guide tube 1408. An oil outlet valve 1410 is installed on the lower outer side of the fourth piston cylinder 1403, and a lower oil pipe 1411 is connected to the lower part of the oil outlet valve 1410. An oil receiving chamber 1412 is connected to the lower part of the lower oil pipe 1411. The oil can be squeezed by the inlet valve 1407 when the second piston disc 1404 moves upward. The fourth piston cylinder 1403 is pressed to open, so that the silicone oil in the oil storage chamber 1409 flows into the fourth piston cylinder 1403 along the liquid guide tube 1408, thereby immersing the needle 8 in oil. After the oil immersion is completed, the first piston disc 1307 moves downward, which will cause the air flow to flow in the opposite direction. At this time, the liquid inlet valve 1407 will close, and the second piston disc 1404 and the filled oil will move downward. Through the outward-opening oil outlet valve 1410 and the lower oil pipe 1411, the oil after the oil immersion can be circulated and recovered into the oil receiving chamber 1412;

[0042] By moving the first piston disc 1307 up and down, the gas in the third piston cylinder 1401 moves left and right, driving the second piston disc 1404 to move up and down, so that the fourth piston cylinder 1403 can finally realize the reciprocating oil filling and oil discharge process, so that the oil can be automatically replaced during oil immersion, avoiding the problem that impurities, metal chips and other pollutants will gradually mix into the oil as the oil immersion process proceeds, thereby affecting the subsequent use of the needle 8. At the same time, the replaced oil can allow each needle 8 to be immersed in new oil, avoiding the problem of using a large oil immersion tank and causing it to deteriorate due to long-term use.

[0043] Working principle: When using this fully automatic insulin internal needle assembly equipment, first, the needle inserted into the receiving socket 3 is transported to the working position of the double clamp 7 through the feeding turntable 2, and then the double clamp 7 is used to clamp the needle 8. In conjunction with the upward movement of the first pushing cylinder 4 and the horizontal flipping of the rotating seat 6, the needle tip of the needle 8 is vertically transferred downward to the working position of the single clamp 10. Then, the second pushing cylinder 9 is used to push the single clamp 10 to clamp the needle 8. Then, the third pushing cylinder 11 drives the immersion oil tank 12 to move upward, allowing the needle 8 to be inserted into the immersion oil tank 12;

[0044] At this time, the driving gear 1301 driven by the reduction motor can drive the driven gear 1302 and the screw 1303 to rotate forward, so that the sliding block 1304 slides to the left on the screw 1303. When the sliding block 1304 moves left and right, the connecting rod 1305 will cause the first piston disc 1307 to slide upward in the first piston cylinder 1308. Then, by opening the solenoid valve 1309, the air in the first piston cylinder 1308 will be squeezed upward, and the air pressure will squeeze the piston push rod 1312 in the second piston cylinder 1311 forward along the mounting joint 1310, so that the piston push rod 1312 pushes the pressure head 1313 forward, and then the pressure heads 1313 on both sides push the needle 8 inserted into the immersion tank 12. The end portion is clamped, and after clamping, the solenoid valve 1309 is closed. At this time, the piston plate in the third piston cylinder 1401 can move toward the fourth piston cylinder 1403 to transmit air pressure, so that the gas is pressed into the fourth piston cylinder 1403 through the air guide tube 1402, and then the second piston disk 1404 in the fourth piston cylinder 1403 moves upward due to the air pressure, and then part of the gas in the air guide tube 1402 can be filled into the inflation bag 1406 through the air distribution pipe 1405, so that the hollow annular inflation bag 1406 expands to wrap and squeeze the needle 8. At this time, the liquid inlet valve 1407 can be opened when the second piston disk 1404 moves upward, so that the silicone oil in the oil storage chamber 1409 flows into the fourth piston cylinder 1403 along the liquid guide tube 1408 to immerse the needle 8 in oil;

[0045] After the oil immersion is completed, the driving gear 1301 is reversed to make the first piston disc 1307 move downward. At this time, the liquid inlet valve 1407 is closed, the second piston disc 1404 and the filled oil move downward, and then the oil after the oil immersion is circulated and recovered into the oil receiving chamber 1412 through the oil outlet valve 1410 and the lower oil pipe 1411. Subsequently, the ultrasonic vibrator 1315 is used to use the pressure head 1313 to vibrate the needle 8 at high frequency, so that the needle 8 is vibrated and separated on the surface. Finally, by opening the solenoid valve 1309 and the air inlet valve 15, the pressure head 1313 can be depressurized and the first piston cylinder 1308 can be re-inflated.

[0046] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fully automatic insulin internal needle assembly device, comprising a work frame (1) and a push-pull mechanism (13), characterized in that: A second pushing cylinder (9) is installed on the upper side of the working frame (1), and a single chuck (10) is installed on the lower side of the output end of the second pushing cylinder (9), a third pushing cylinder (11) is provided on the lower side of the second pushing cylinder (9), and an oil immersion box (12) is installed on the upper end of the third pushing cylinder (11), and the push-pull mechanism (13) for vibrating oil removal is provided on both sides of the interior of the oil immersion box (12), and the push-pull mechanism (13) includes a driving gear (1301) installed in the lower middle part of the interior of the oil immersion box (12), the lower two sides of the driving gear (1301) are connected to driven gears (1302), and a screw (1303) is fixed on the other side of the driven gear (1302), and a sliding block (1304) is provided in the middle of the screw (1303), and the sliding block (1304) is provided in the middle of the screw (1303). A connecting rotating rod (1305) is installed above the moving block (1304), a first piston disc (1307) is installed on the top of the connecting rotating rod (1305), and a first piston cylinder (1308) is provided on the outside of the first piston disc (1307), a solenoid valve (1309) is installed in the upper middle part of the first piston cylinder (1308), and a mounting joint (1310) is connected to the upper side of the solenoid valve (1309), and a piston push rod (1312) is provided at the inner front end of the second piston cylinder (1311), a pressure head (1313) is installed at the front end of the piston push rod (1312), and an ultrasonic vibrator (1315) is installed in the inner middle part of the pressure head (1313); An oil immersion mechanism (14) for replaceable immersion oil is provided in the middle of the inner side of the oil immersion box (12). The oil immersion mechanism (14) comprises a third piston cylinder (1401) connected to the outer side of the middle part of the first piston cylinder (1308), and an air guide pipe (1402) is connected to the lower side of one side of the third piston cylinder (1401).

2. The fully automatic insulin internal needle assembly equipment according to claim 1, characterized in that: A feeding turntable (2) is installed on the other side above the working frame (1), and receiving sockets (3) are distributed in an annular shape on the outside of the feeding turntable (2). A first pushing cylinder (4) is installed in the middle of the upper part of the working frame (1).

3. The fully automatic insulin internal needle assembly equipment according to claim 2, characterized in that: A lifting frame (5) is provided on the top of the first push cylinder (4), and a rotating seat (6) is installed in the middle of the front end of the lifting frame (5), and a double clamp (7) is installed at the front end of the rotating seat (6), and the end of the double clamp (7) clamps a needle (8).

4. The fully automatic insulin internal needle assembly equipment according to claim 1, characterized in that: Guide rods (1306) are fixed on both sides of the middle of the sliding block (1304), and the driving gear (1301) is rotationally connected to the screw rod (1303) through the driven gear (1302), and the sliding block (1304) is slidingly connected to the inner wall of the immersion oil tank (12) through the screw rod (1303) and the guide rod (1306), and the first piston disc (1307) is slidingly connected to the first piston cylinder (1308) through the sliding block (1304) and the connecting rod (1305).

5. The fully automatic insulin internal needle assembly equipment according to claim 1, characterized in that: A pressure relief valve (1314) is connected to the rear of the second piston cylinder (1311), and the pressure relief valve (1314), the second piston cylinder (1311), the mounting joint (1310) and the solenoid valve (1309) are connected, and the solenoid valve (1309) is connected to the first piston cylinder (1308). An air intake valve (15) is connected to the upper side of the outer side of the first piston cylinder (1308).

6. The fully automatic insulin internal needle assembly equipment according to claim 1, characterized in that: The other side of the air guide tube (1402) is connected to the upper part thereof with a fourth piston cylinder (1403), and a second piston disc (1404) is provided at the lower part of the interior of the fourth piston cylinder (1403), and the fourth piston cylinder (1403), the air guide tube (1402) and the third piston cylinder (1401) are connected.

7. The fully automatic insulin internal needle assembly equipment according to claim 1, characterized in that: An air distribution pipe (1405) is connected to the upper middle portion of the air guide tube (1402), and an inflatable bag (1406) is provided on one side above the air distribution pipe (1405). The air distribution pipe (1405) and the air guide tube (1402) are in communication.

8. The fully automatic insulin internal needle assembly equipment according to claim 6, characterized in that: A liquid inlet valve (1407) is installed on the upper outer side of the fourth piston cylinder (1403), and a liquid guide tube (1408) is connected above the liquid inlet valve (1407). An oil storage chamber (1409) is provided at the top of the liquid guide tube (1408).

9. The fully automatic insulin internal needle assembly equipment according to claim 6, characterized in that: An oil outlet valve (1410) is installed on the lower side of the exterior of the fourth piston cylinder (1403), and a lower oil pipe (1411) is connected below the oil outlet valve (1410), and an oil receiving chamber (1412) is connected below the lower oil pipe (1411).

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