Carbon rod grinding device of pre-filled syringe glass needle cylinder clamping mechanism

Abstract

The invention discloses a carbon rod grinding device of a pre-filled syringe glass needle cylinder clamping mechanism. The carbon rod grinding device comprises a bottom plate, a supporting rod is fixed to the bottom plate, a mounting plate is mounted at the top end of the supporting rod through a locking nut, a center hole of the clamping mechanism is formed in the center of the mounting plate, and a linear bearing module is fixed to one side of the mounting plate; the linear bearing module comprises a linear bearing rod installed on one side of the installation plate, a lower check ring, a spring, a gasket, a linear bearing guide sleeve and a limiting upper check ring which are set according to the height are sequentially arranged on the linear bearing rod, a center frame is installed on the linear bearing guide sleeve and comprises an installation bottom plate, an installation column is integrally formed on the installation bottom plate, and the lower check ring is arranged on the installation column. A diamond grinding rod is mounted on the mounting column; a movable handle is further mounted on the linear bearing guide sleeve; adjusting screws are installed on the side faces of the tail ends of the linear bearing rods. By adjusting the opening degree of the clamping jaw rod, the carbon rod grinding device can be suitable for grinding carbon rods of clamping mechanisms of glass needle cylinders with different diameters; the structure is simple, cost is low and maintenance is convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of forming and processing of pre-filled syringe glass barrels. Specifically, the present invention relates to a carbon rod grinding device for a clamping mechanism of a pre-filled syringe glass barrel. Background Art

[0002] The pre-filled syringe integrates "drug storage" and "injection function", and is favored in the biomedical field due to advantages such as safety, convenience, high drug solution utilization rate, and prevention of secondary cross-contamination. It is accepted by more and more pharmaceutical companies, clinical medical staff, and patients, so the market demand continues to rise.

[0003] In the prior invention patent application of Nanjing Qingji Packaging Machinery Co., Ltd. with the prior name of a clamping mechanism for a pre-filled syringe glass barrel and the application number of 202510349796X, a part of the core components, the jaw head, that is, the jaw head body, is disclosed. The jaw head body includes a hollow sleeve, a columnar end at the top of the sleeve, a threaded hole for installing a bottle holder in the center of the columnar end, and at least two jaw support bodies are provided on the outer circle of the columnar end. An inclined hole for the jaw rod to pass through is opened on the jaw support body. Among them, the center lines of all the inclined holes intersect at one point with the center line of the threaded hole for installing the bottle holder.

[0004] The specification of this prior application also clearly mentions that the clamping mechanism of the pre-filled syringe glass barrel is the core component of the syringe forming machine, with extremely high precision requirements, and the radial runout requirement during operation is <0.1 mm.

[0005] When a new carbon rod is installed in the clamping mechanism or the carbon rod is worn during use, in order to ensure the consistency of the centering of the three carbon rods, grinding is required. Manual grinding cannot meet the centering precision requirements.

[0006] In view of the above problems, the present invention proposes a carbon rod grinding device for a clamping mechanism of a pre-filled syringe glass barrel. Summary of the Invention

[0007] The present invention provides a grinding device dedicated to the carbon rods in the clamping mechanism of a pre-filled syringe glass barrel.

[0008] The technical solution of the present invention is as follows:

[0009] A carbon rod grinding device for a clamping mechanism of a pre-filled syringe glass barrel includes a bottom plate 1. At least three support rods 2 are fixed on the bottom plate 1. The top of the support rod 2 is installed with a mounting plate 13 through a locking nut 5. A central hole 1301 for accommodating the clamping mechanism 18 of the pre-filled syringe glass barrel is provided in the center of the mounting plate 13. A linear bearing module 10 is fixed on one side of the mounting plate 13;

[0010] The described linear bearing module 10 includes a linear bearing rod 1011 installed on one side of the mounting plate 13. The following components are sequentially arranged on the linear bearing rod 1011: a lower retaining ring 6 set according to height, a spring 7, a washer 8, a linear bearing guide sleeve 1012, and a limit upper retaining ring 60. Among them,

[0011] A center frame 11 is installed on the linear bearing guide sleeve 1012. The center frame 11 includes a mounting base plate 1101, an integral mounting post 1102 formed on the mounting base plate 1101, and a diamond grinding rod 12 installed on the mounting post 1102;

[0012] A moving handle 9 is also installed on the linear bearing guide sleeve 1012;

[0013] An adjusting screw 4 is installed on the end side of the linear bearing rod 1011;

[0014] The assembly process is as follows:

[0015] Step S1: Insert a key 15 into the keyway of the transmission shaft 17, then slip the driving wheel 16 onto the transmission shaft 17, and use an axle end retaining ring 14 and screws to press the driving wheel 16 tightly. Then, pass the transmission shaft 17 through the through hole of the bottom plate 1 and connect it to the reducer;

[0016] Step S2: Screw three support rods 2 into the corresponding threaded holes of the bottom plate 1 respectively, then slip the mounting plate 13 onto the other ends of the support rods 2, and use a locking nut 5 to connect and fix it;

[0017] Step S3: Pass the linear bearing guide sleeve 1012, washer 8, spring 7, and lower retaining ring 6 through the linear bearing rod 1011 of the linear bearing module 10 in sequence, and fix the lower retaining ring 6 with screws. Install a limit upper retaining ring 60 at the other end of the linear bearing rod 1011 of the linear bearing module 10 for limiting; Then, slip the shaft end of the linear bearing rod 1011 into the corresponding hole of the mounting plate 13, and use an adjusting screw 4 to press and fix it. Then, fix the handle 9 and the mounting base plate 1101 of the center frame 11 on the linear bearing guide sleeve 1012 of the linear bearing module 10;

[0018] Step S4: Remove the lower threaded sleeve 1804 of the clamping mechanism 18, slip the spacer sleeve 3 onto the outer circle of the spring shaft at the lower end of the clamping mechanism 18, and then screw in the threaded sleeve 1804 to press the spacer sleeve 3;

[0019] Step S5: Fix the clamping mechanism 18 on the mounting plate 13 with socket head cap screws;

[0020] Step S6: Slip the diamond grinding rod 12 into the corresponding hole of the center frame 11, and then use an adjusting screw to press and fix it.

[0021] Adjust the angle of the linear bearing module 10 to align the center of the diamond grinding rod 12 with the clamping mechanism 18: Loosen the adjusting screw 4, tighten the threaded sleeve 1804 below the clamping mechanism 18 to drive the jaw rod 1802 and the carbon rod 1801 to open. Move the handle 9 to drive the linear bearing guide sleeve 1012 of the linear bearing module 10 to move downward. After aligning the center of the diamond grinding rod 12 with the clamping mechanism 18, tighten the adjusting screw 4 to fix the angle of the linear bearing module 10. During use, adjust the screwing length of the threaded sleeve 1804 to make the opening degree of the jaw rod 1802 appropriate. Start the power supply, the transmission shaft 17 rotates, thus driving the friction wheel 1803 through the driving wheel 16 and then driving the clamping mechanism 18 to rotate. Move the handle 9 up and down to complete the grinding of the carbon rod 1801.

[0022] The preferred technical solution provided by the present invention is:

[0023] The main body of the mounting plate 13 is circular, and a mounting portion 1302 is formed by outward convexity on one side. The mounting portion 1302 is used for mounting the linear bearing rod 1011 of the linear bearing module 10.

[0024] A further preferred technical solution provided by the present invention is:

[0025] The lower retaining ring 6 and the limit upper retaining ring 60 are both fixed at corresponding positions on the linear bearing rod 1011 by screws.

[0026] Another preferred technical solution provided by the present invention is:

[0027] A key 15 is installed in the keyway of the transmission shaft 17, then the driving wheel 16 is sleeved on the transmission shaft 17, and the driving wheel 16 is pressed tightly with a shaft end retaining ring 14 and a screw. Then, the transmission shaft 17 is passed through the through hole of the bottom plate 1 and connected to the reducer.

[0028] Beneficial effects:

[0029] 1. By adjusting the opening degree of the jaw rod, the present invention can be applicable to the carbon rod grinding of clamping mechanisms for glass syringes with different diameters.

[0030] 2. It is convenient to replace the diamond grinding rod after wear.

[0031] 3. The present invention has a simple structure, convenient operation, low cost, and easy maintenance.

[0032] Actual use effect:

[0033] Through the grinding of the present invention, the accuracy of the clamping mechanism fully meets the production requirements, and the qualified product rate of the glass syringe production line is stable above 95%. Description of the drawings

[0034] Figure 1 It is a schematic diagram of the overall assembly structure of the present invention;

[0035] Figure 2 is Figure 1 a three-dimensional structure schematic diagram;

[0036] Figure 3 is Figure 1 a three-dimensional structure schematic diagram of the bottom plate 1 in

[0037] Figure 4 is Figure 1 a three-dimensional structure schematic diagram of the support rod 2 in

[0038] Figure 5 is Figure 1 a three-dimensional structure schematic diagram of the center frame 11 in

[0039] Figure 6 is Figure 1 a three-dimensional structure schematic diagram of the mounting plate 13 in

[0040] Figure 7 is Figure 1 a structure schematic diagram of the driving wheel 16 in

[0041] The meanings of the marks in the attached drawings:

[0042] 1. Bottom plate, 2. Support rod, 3. Spacer sleeve, 4. Adjusting screw, 5. Locking nut, 6. Lower retaining ring, 60. Upper limit retaining ring,

[0043] 7. Spring, 8. Washer, 9. Handle,

[0044] 10. Linear bearing module, 1011. Linear bearing rod, 1012. Linear bearing guide sleeve,

[0045] 11. Center frame, 1101. Mounting bottom plate, 1102. Mounting column,

[0046] 12. Diamond grinding rod,

[0047] 13. Mounting plate, 1301. Central hole, 1302. Mounting part,

[0048] 14. Shaft end retaining ring, 15. Key;

[0049] 16. Driving wheel, 1601. Rubber coating layer;

[0050] 17. Transmission shaft;

[0051] 18. Clamping mechanism, 1801. Carbon rod, 1802. Jaw rod, 1803. Friction wheel, 1804. Threaded sleeve. Specific embodiments

[0052] The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

[0053] Figure 1 is a schematic diagram of the overall assembly structure of the present invention, Figure 2 is Figure 1 a three-dimensional structure diagram of, combined with the attached Figure 1 、 Figure 2 shown in,

[0054] A carbon rod grinding device for a pre-filled syringe glass barrel clamping mechanism of the present invention includes a bottom plate 1, on which at least three support rods 2 are fixed ( Figure 4 shown in), the top of the support rod 2 is installed with a mounting plate 13 through a locking nut 5, a central hole 1301 for accommodating the pre-filled syringe glass barrel clamping mechanism 18 is provided in the center of the mounting plate 13, and a linear bearing module 10 is fixed on one side of the mounting plate 13;

[0055] The linear bearing module 10 includes a linear bearing rod 1011 installed on one side of the mounting plate 13, and the following are sequentially arranged on the linear bearing rod 1011: a lower retaining ring 6 set according to height, a spring 7, a washer 8, a linear bearing guide sleeve 1012, and a limit upper retaining ring 60. Among them,

[0056] A center frame 11 is installed on the linear bearing guide sleeve 1012 ( Figure 5 shown in), the center frame 11 includes a mounting bottom plate 1101, a mounting column 1102 is integrally formed on the mounting bottom plate 1101, and a diamond grinding rod 12 is installed on the mounting column 1102;

[0057] A moving handle 9 is also installed on the linear bearing guide sleeve 1012;

[0058] An adjusting screw 4 is installed on the side of the end of the linear bearing rod 1011;

[0059] Adjust the angle of the linear bearing module 10 to align the diamond grinding rod 12 with the center of the clamping mechanism 18: Loosen the adjusting screw 4, tighten the threaded sleeve 1804 below the clamping mechanism 18 to drive the jaw rod 1802 and the carbon rod 1801 to open, move the handle 9 to drive the linear bearing guide sleeve 1012 of the linear bearing module 10 to move downward. After aligning the diamond grinding rod 12 with the center of the clamping mechanism 18, tighten the adjusting screw 4 to fix the angle of the linear bearing module 10; during use, adjust the screwing length of the threaded sleeve 1804 to make the opening of the jaw rod 1802 appropriate; start the power supply, the transmission shaft 17 rotates, thus driving the friction wheel 1803 through the driving wheel 16 and then driving the clamping mechanism 18 to rotate. Move the handle 9 up and down to complete the grinding of the carbon rod 1801.

[0060] As Figure 6 shown, the main body of the mounting plate 13 is circular, and a mounting portion 1302 bulges outward on one side. The mounting portion 1302 is used to mount the linear bearing rod 1011 of the linear bearing module 10.

[0061] The lower retaining ring 6 and the limit upper retaining ring 60 are both fixed at the corresponding positions on the linear bearing rod 1011 by screws.

[0062] A key 15 is inserted into the keyway of the transmission shaft 17, then the driving wheel 16 is sleeved on the transmission shaft 17, and the driving wheel 16 is pressed tightly with the shaft end retaining ring 14 and screws. Then, the transmission shaft 17 is passed through the through hole of the bottom plate 1 ( Figure 3 shown) and connected to the reducer.

[0063] The specific use process of the present invention is as follows:

[0064] Before use, the device of the present invention must be assembled.

[0065] Step S1, insert a key 15 into the keyway of the transmission shaft 17, then sleeve the driving wheel 16 ( Figure 7 shown) on the transmission shaft 17, press the driving wheel 16 tightly with the shaft end retaining ring 14 and screws. Then, pass the transmission shaft 17 through the through hole of the bottom plate 1 and connect it to the reducer;

[0066] A rubber coating layer 1601 is provided outside the driving wheel 16 to increase the friction force.

[0067] Step S2, screw the three support rods 2 into the corresponding threaded holes of the bottom plate 1 respectively, then sleeved the mounting plate 13 on the other ends of the support rods 2, and connect and fix them with the locking nut 5;

[0068] Step S3: Insert the linear bearing bushing 1012, washer 8, spring 7, and lower retaining ring 6 into the linear bearing rod 1011 of the linear bearing module 10 in sequence, and fix the lower retaining ring 6 with a screw. Install a limit upper retaining ring 60 at the other end of the linear bearing rod 1011 of the linear bearing module 10 for limiting. Then, insert the shaft end of the linear bearing rod 1011 into the corresponding hole of the mounting plate 13, and press and fix it with an adjusting screw 4. Next, fix the handle 9 and the mounting base plate 1101 of the center rest 11 on the linear bearing bushing 1012 of the linear bearing module 10.

[0069] Step S4: Remove the lower threaded sleeve 1804 of the clamping mechanism 18, slip the spacer sleeve 3 onto the outer circumference of the spring shaft at the lower end of the clamping mechanism 18, and then screw in the threaded sleeve 1804 to press the spacer sleeve 3. The spacer sleeve 3 is used to reduce the screwing depth of the threaded sleeve 1804 and improve work efficiency.

[0070] Step S5: Fix the clamping mechanism 18 on the mounting plate 13 with socket head cap screws.

[0071] Step S6: Insert the diamond grinding rod 12 into the corresponding hole of the center rest 11, and then press and fix it with an adjusting screw.

[0072] The working principle of the present invention is as follows:

[0073] When used for the first time, it is necessary to adjust the angle of the linear bearing module 10 to align the diamond grinding rod 12 with the center of the clamping mechanism 18: Loosen the adjusting screw 4, tighten the threaded sleeve 1804 to drive the jaw rod 1802 and the carbon rod 1801 to open. Move the handle 9 to drive the linear bearing bushing 1012 of the linear bearing module 10 to move downward. After aligning the diamond grinding rod 12 with the center of the clamping mechanism 18, tighten the adjusting screw 4 to fix the angle of the linear bearing module 10.

[0074] When in use, adjust the screwing length of the threaded sleeve 1804 to make the opening of the jaw rod 1802 appropriate;

[0075] Start the power supply, the transmission shaft 17 rotates, thereby driving the friction wheel 1803 and the clamping mechanism 18 to rotate through the driving wheel 16,

[0076] Move the handle 9 up and down to complete the grinding of the carbon rod 1801.

[0077] After grinding, the spring 7 pushes the linear bearing bushing 1012 of the linear bearing module 10 to the uppermost position, the diamond grinding rod 12 disengages from the carbon rod 1801, turn off the power supply, and remove the clamping mechanism 18.

[0078] If it is necessary to grind the next clamping mechanism 18, replace the clamping mechanism 18 to be ground and repeat the above operations.

[0079] Adjust the screwing length of the adjusting screw sleeve 1804, so as to adjust the opening degree of the jaw rod 1802, which can meet the carbon rod grinding of glass syringes with different diameters when being clamped.

[0080] The described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

Claims

1. A carbon rod grinding device for a clamping mechanism of a pre-filled syringe glass barrel, comprising a bottom plate (1), at least three support rods (2) are fixed on the bottom plate (1), and a mounting plate (13) is installed at the top of the support rod (2) through a locking nut (5), characterized in that, A central hole (1301) for accommodating a clamping mechanism (18) of a pre-filled syringe glass barrel is provided at the center of the mounting plate (13), and a linear bearing module (10) is fixed on one side of the mounting plate (13); The linear bearing module (10) includes a linear bearing rod (1011) mounted on one side of the mounting plate (13), and the following are sequentially arranged on the linear bearing rod (1011): a lower retaining ring (6) set according to height, a spring (7), a washer (8), a linear bearing guide sleeve (1012), and a limit upper retaining ring (60). Among them, A center frame (11) is mounted on the linear bearing guide sleeve (1012). The center frame (11) includes a mounting base plate (1101), a mounting column (1102) is integrally formed on the mounting base plate (1101), and a diamond grinding rod (12) is mounted on the mounting column (1102); A moving handle (9) is also mounted on the linear bearing guide sleeve (1012); An adjusting screw (4) is mounted on the end side of the linear bearing rod (1011); The assembly process is as follows: Step S1, the driving wheel (16) is sleeved on the transmission shaft (17), and the transmission shaft (17) is passed through the through hole of the bottom plate (1) and connected to the reducer; Step S2, the support rod (2) is screwed into the corresponding threaded hole of the bottom plate (1), and then the mounting plate (13) is sleeved on the other end of the support rod (2), and it is connected and fixed with a locking nut (5); Step S3, the linear bearing guide sleeve (1012), the washer (8), the spring (7) and the lower retaining ring (6) are sequentially inserted into the linear bearing rod (1011) of the linear bearing module (10), and the lower retaining ring (6) is fixed with a screw. The limit upper retaining ring (60) is installed at the other end of the linear bearing rod (1011) for limiting; then the shaft end of the linear bearing rod (1011) is sleeved into the corresponding hole of the mounting plate (13), and it is pressed and fixed with an adjusting screw (4). Then, the handle (9) and the mounting base plate (1101) of the center frame (11) are fixed on the linear bearing guide sleeve (1012) of the linear bearing module 10; Step S4, the lower threaded sleeve (1804) of the clamping mechanism (18) is removed, the spacer sleeve (3) is sleeved on the outer circle of the spring shaft at the lower end of the clamping mechanism (18), and then the threaded sleeve (1804) is screwed in to press the spacer sleeve (3); Step S5, the clamping mechanism (18) is fixed on the mounting plate (13); Step S6, the diamond grinding rod (12) is sleeved into the corresponding hole of the center frame (11); Adjust the angle of the linear bearing module (10) to align the diamond grinding rod (12) with the center of the clamping mechanism (18): Loosen the adjusting screw (4), tighten the threaded sleeve (1804) below the clamping mechanism (18), drive the jaw rod (1802) and the carbon rod (1801) to open, move the handle (9) to drive the linear bearing guide sleeve (1012) of the linear bearing module (10) to move downward. After aligning the diamond grinding rod (12) with the center of the clamping mechanism (18), tighten the adjusting screw (4) to fix the angle of the linear bearing module (10); during use, adjust the screwing length of the threaded sleeve (1804) to make the opening of the jaw rod (1802) appropriate; start the power supply, the transmission shaft (17) rotates, thereby driving the friction wheel (1803) through the driving wheel (16) and then driving the clamping mechanism (18) to rotate. Move the handle (9) up and down to complete the grinding of the carbon rod (1801).

2. The carbon rod grinding device of a pre-filled syringe glass barrel clamping mechanism according to claim 1, characterized in that, The main body of the mounting plate (13) is circular, and a mounting portion (1302) is formed by outward convexity on one side. The mounting portion (1302) is used to mount the linear bearing rod (1011) of the linear bearing module (10).

3. The carbon rod grinding device of a prefilled syringe glass barrel clamping mechanism according to claim 1, characterized in that, The lower retaining ring (6) and the upper limiting retaining ring (60) are both fixed to the corresponding positions of the linear bearing rod (1011) by screws.

4. A carbon rod grinding device for a pre-filled syringe glass barrel clamping mechanism according to claim 1, characterized in that, A key (15) is inserted into the keyway of the transmission shaft (17), then the driving wheel (16) is sleeved on the transmission shaft (17), and the driving wheel (16) is pressed tightly with a shaft end retaining ring (14) and screws. Then, the transmission shaft (17) is passed through the through hole of the bottom plate (1) and connected to the reducer.

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