Unloading mechanism of syringe automatic assembly line

Abstract

The present invention provides a material unloading mechanism for an automatic syringe assembly line, and belongs to the technical field of medical device production equipment. It solves the problem that the existing material unloading mechanism of an automatic syringe assembly line easily causes damage to the syringe. The material unloading mechanism of the automatic syringe assembly line comprises a bracket arranged on a workbench, the bracket is provided with a horizontally arranged translation frame and a driving mechanism for driving the translation frame to reciprocate horizontally and longitudinally, the translation frame is provided with a fork that can reciprocate vertically and lift relative to the translation frame, the upper end face of the fork is arranged horizontally, and the outer edge of the fork is provided with a row of parallel fork grooves. The material unloading mechanism of the automatic syringe assembly line has the advantages of not easily causing damage to the syringe and reliable unloading.

Description

Technical Field

[0001] The invention belongs to the technical field of medical device production equipment and relates to an automatic syringe assembly line, in particular to a material unloading mechanism of the automatic syringe assembly line. Background Art

[0002] In the medical system, disposable syringes have been widely used because they do not need to be sterilized when used. Users only need to tear open the outer packaging, which is convenient to use and safe and hygienic. The characteristics of disposable syringes place high hygienic requirements on their production process. The syringe production process includes operations such as needle installation, syringe installation, defective product detection and rejection. The traditional production process is all manual operation, which is not only labor-intensive and inefficient, but also difficult to meet the hygienic and safety standards of medical syringes. Therefore, there is an urgent need for an assembly device for syringes, but the existing syringe production equipment has low efficiency, slow production speed, and high defective rate, which cannot meet the production requirements of enterprises.

[0003] For example, a syringe needle loading machine disclosed in a Chinese patent document (application number: 201310459337.4) includes a frame, a conveying device installed on the frame, and the conveying device includes a first longitudinal linear conveying device, a second longitudinal linear conveying device, a transverse linear conveying device, a first corner conveying device and a second corner conveying device; the frame is sequentially fixed with a syringe fixing device, a needle loading device, a gluing device, a drying device, a needle back detection device, a needle tube blockage detection device, a silicone oiling device, a defective rejection device, a protective cap device, a protective cap pressing device and a discharging device. However, the syringe needle loading machine does not disclose a specific discharging device. The ordinary discharging device generally uses a manipulator to clamp and remove the syringe on the tooling bar, which is easy to damage the syringe. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems in the prior art and to propose a material unloading mechanism for an automatic syringe assembly line which is not easy to damage the syringe and has reliable material unloading.

[0005] The object of the present invention can be achieved through the following technical solutions: a feeding mechanism of an automatic syringe assembly line, the automatic syringe assembly line includes a workbench, the feeding mechanism includes a bracket arranged on the workbench, the bracket is provided with a horizontally arranged translation frame and a driving mechanism that drives the translation frame to reciprocate horizontally and longitudinally. It is characterized in that the translation frame is provided with a fork that can reciprocate and vertically lift and lower relative to the translation frame, the upper end face of the fork is horizontally arranged, and the outer edge of the fork is provided with a row of parallel fork grooves.

[0006] A row of positioning rods is provided on the tooling strip, and the syringe is inserted on the positioning rods. When unloading, the tooling strip equipped with the syringe is transported to the unloading mechanism, and the translation frame is driven by the driving mechanism to move horizontally and longitudinally, so that the fork groove of the fork is inserted into the positioning rod of the tooling strip. At the same time, the fork rises and pushes the syringe fixed on the positioning rod upward from the positioning rod to remove the syringe from the positioning rod. This has the advantages of high unloading efficiency and is not easy to damage the syringe.

[0007] In the unloading mechanism of the above-mentioned syringe automatic assembly line, the lower end surface of the fork is provided with an inclined abutting surface, and a plurality of rollers are axially fixedly connected to the workbench and the rollers abut against the abutting surface. The driving mechanism drives the translation frame to move horizontally so that the abutting surface of the fork abuts against the rollers. Since the abutting surface is inclined, the translation frame drives the fork to move horizontally and longitudinally while the rollers push the fork up and down, so that the fork pushes the syringe upward to remove the syringe from the positioning rod, which has the advantages of convenient unloading and not easy to damage the syringe.

[0008] In the unloading mechanism of the above-mentioned syringe automatic assembly line, the inner end of the fork is fixedly connected with a slider 1, and the outer side wall of the translation frame is fixedly connected with a vertically arranged guide rail 1, and the guide rail 1 is embedded in the slide groove of the slider 1. The slider 1 and the guide rail 1 are arranged between the fork and the translation frame, so that the fork has a good guiding effect relative to the translation frame, so that the fork can be lifted and lowered smoothly, with the advantages of good unloading effect and not easy to damage the syringe.

[0009] In the above-mentioned unloading mechanism of the syringe automatic assembly line, the driving mechanism is a translation cylinder whose cylinder body is fixedly connected to the workbench, and the piston rod of the translation cylinder is fixedly connected to the translation frame. The driving mechanism adopts the translation cylinder, which has the advantages of simple structure and high working efficiency.

[0010] In the unloading mechanism of the above-mentioned syringe automatic assembly line, the driving mechanism is a screw rod axially fixed to the workbench and a motor driving the screw rod to rotate, a nut is fixed to the translation frame and the nut is threadedly connected to the screw rod. The driving mechanism uses a motor to drive the translation frame to move horizontally and longitudinally through the screw rod and nut, and has the advantages of stable and reliable operation.

[0011] In the unloading mechanism of the above-mentioned syringe automatic assembly line, a lifting cylinder is vertically arranged on the translation frame, the cylinder body of the lifting cylinder is fixedly connected to the translation frame, and the piston rod of the lifting cylinder is fixedly connected to the shift fork. The shift fork is driven to reciprocate relative to the translation frame by the lifting cylinder, which has the advantages of high working efficiency and convenient installation.

[0012] In the unloading mechanism of the above-mentioned syringe automatic assembly line, a horizontally arranged material shifting rod is provided on the translation frame, and horizontally arranged guide rods are fixedly connected to both ends of the material shifting rod. Two horizontally arranged guide sleeves are fixedly connected to the translation frame and the guide rod passes through the guide sleeves.

[0013] In the above-mentioned unloading mechanism of the syringe automatic assembly line, the two ends of the unloading rod are provided with horizontally protruding unloading heads, and the unloading heads are wedge-shaped, which are convenient for inserting between the two syringes of the tooling bar, and are convenient for accurate unloading.

[0014] In the unloading mechanism of the above-mentioned syringe automatic assembly line, a spring is sleeved on the guide sleeve and the two ends of the spring are respectively against the material-moving rod and the translation frame. When unloading, when the fork pushes the syringe, the material-moving rod is against the outer wall of the syringe and compresses the spring. When the fork lifts the syringe from the positioning rod, under the action of the elastic force of the spring, the material-moving rod pushes the syringe horizontally outward to remove the syringe from the tooling bar, which has the advantages of simple structure and good unloading effect.

[0015] In the unloading mechanism of the above-mentioned syringe automatic assembly line, the translation frame is provided with a second translation cylinder and the piston rod of the second translation cylinder is fixedly connected to the material removal rod. The second translation cylinder drives the material removal rod to move horizontally, and the syringe lifted from the positioning rod is pushed horizontally to complete the unloading, which has the advantages of simple structure and reliable operation.

[0016] In the unloading mechanism of the above-mentioned syringe automatic assembly line, the workbench is fixedly connected with a limit rod and the limit rod is arranged parallel to one side of the fork and the limit rod is for the tooling strip to abut against. By providing the limit rod for the tooling strip to abut against, when the translation frame pushes the fork to the tooling strip, the tooling strip can abut against the limit rod, which has a better limit effect and enables unloading to proceed smoothly.

[0017] In the unloading mechanism of the above-mentioned syringe automatic assembly line, a plurality of blocking wheels are axially fixedly connected to the workbench, the blocking wheel is located on one side of the roller, the blocking wheel is located on the lower side of the fork and the lower end of the fork can abut against the blocking wheel. By providing the above-mentioned blocking wheel, the fork can be restricted from falling off the translation frame, which has the advantage of reliable operation.

[0018] In the unloading mechanism of the above-mentioned syringe automatic assembly line, a unloading port is provided on one side of the workbench, a material guide slot is provided at the unloading port, the lower end of the material guide slot is connected to the workbench, the slot at the lower end of the material guide slot has a blocking plate and a lifting cylinder 2 for driving the blocking plate to rise and fall, the lifting cylinder 2 can drive the blocking plate to rise and block the slot of the material guide slot. The sealing plate is driven by the lifting cylinder 2 to block the slot of the material guide slot, so that the syringe is easily blocked in the material guide slot, which has the advantage of being more convenient to use.

[0019] Compared with the prior art, the unloading mechanism of the syringe automatic assembly line has the following advantages:

[0020] 1. The translation cylinder drives the translation frame to move horizontally and longitudinally, so that the fork groove of the shift fork is inserted into the positioning rod of the tooling strip. At the same time, the shift fork rises to push the syringe fixed on the positioning rod upward from the positioning rod to remove the syringe from the positioning rod, which has the advantages of high material unloading efficiency and is not easy to damage the syringe;

[0021] 2. The translation cylinder drives the translation frame to move horizontally so that the abutting surface of the fork abuts against the roller. The translation frame drives the fork to move horizontally and longitudinally. At the same time, the roller pushes the inclined surface of the fork to drive the fork to move up and down, so that the fork moves longitudinally and moves upward, pushing the syringe upward to remove the syringe from the positioning rod, which has the advantages of convenient unloading and not easy to damage the syringe;

[0022] 3. When the fork lifts the syringe from the positioning rod, under the action of the elastic force of the spring, the material lever pushes the syringe horizontally outward to remove the syringe from the tooling bar, which has the advantages of simple structure and good material removal effect;

[0023] 4. The sealing plate is driven by the lifting cylinder 2 to seal the notch of the material guide groove, so that the syringe can be sealed in the material guide groove, which has the advantage of being more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the unloading mechanism of the syringe automatic assembly line.

[0025] Figure 2 It is a top view schematic diagram of the unloading mechanism of the syringe automatic assembly line.

[0026] Figure 3 This Figure 2 Schematic cross-sectional view of AA.

[0027] Figure 4 It is a cross-sectional schematic diagram of another method of the blanking mechanism.

[0028] Figure 5 It is a cross-sectional schematic diagram of another method of the blanking mechanism.

[0029] In the figure, 1. workbench; 2. bracket; 3. translation frame; 4. shift fork; 4a. fork groove; 4b. abutment surface; 5. roller; 6. slider 1; 7. guide rail 1; 8. translation cylinder; 9. lifting cylinder; 10. material shifting rod; 10a. material shifting head; 11. guide rod; 12. guide sleeve; 13. spring; 14. limit rod; 15. blocking wheel; 16. material guide groove; 17. blocking plate; 18. lifting cylinder 2; 19. tooling strip; 19a. positioning rod; 20. syringe; 21. translation cylinder 2. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0031] like Figures 1 to 3 As shown, the unloading mechanism of the syringe automatic assembly line includes a workbench 1. The unloading mechanism includes a bracket 2 arranged on the workbench 1, and a translation frame 3 and a driving mechanism that drives the translation frame 3 to reciprocate horizontally and longitudinally on the bracket 2. The driving mechanism is a translation cylinder 8 whose cylinder body is fixedly connected to the workbench 1, and the piston rod of the translation cylinder 8 is fixedly connected to the translation frame 3, which has the advantages of simple structure and high working efficiency. As another way, the driving mechanism is a screw rod axially fixedly connected to the workbench 1 and a motor that drives the screw rod to rotate. A nut is fixedly connected to the translation frame 3 and the nut is connected to the screw rod thread, which has the advantages of stable and reliable operation.

[0032] The translation frame 3 is provided with a shift fork 4 which can be lifted and lowered vertically and reciprocatingly relative to the translation frame 3. The upper end face of the shift fork 4 is horizontally arranged, and the outer edge of the shift fork 4 is provided with a row of parallel fork grooves 4a. The lower end face of the shift fork 4 is provided with an inclined abutment surface 4b, and a plurality of rollers 5 are axially fixedly connected to the workbench 1 and the rollers 5 abut against the abutment surface 4b. The inner end of the shift fork 4 is fixedly connected with a slider 6, and the outer side wall of the translation frame 3 is fixedly connected with a vertically arranged guide rail 7 and the guide rail 7 is embedded in the slide groove of the slider 6, so that the shift fork 4 has a better guiding effect when lifting and lowering relative to the translation frame 3, so that the shift fork 4 can be lifted and lowered smoothly, and has the advantages of better unloading effect and less damage to the syringe 20. As another way, such as Figure 4 As shown, a lifting cylinder 9 is vertically provided on the translation frame 3, a cylinder body of the lifting cylinder 9 is fixedly connected to the translation frame 3, and a piston rod of the lifting cylinder 9 is fixedly connected to the shift fork 4, which has the advantages of high working efficiency and convenient installation.

[0033] The translation frame 3 is provided with a horizontally arranged material-moving rod 10, and the two ends of the material-moving rod 10 have horizontally protruding material-moving heads 10a on the outer sides, and the material-moving heads 10a are wedge-shaped. The two ends of the material-moving rod 10 are fixedly connected with horizontally arranged guide rods 11, and the translation frame 3 is fixedly connected with two horizontally arranged guide sleeves 12, and the guide rods 11 pass through the guide sleeves 12, and the guide sleeves 12 are sleeved with springs 13, and the two ends of the springs 13 are respectively against the material-moving rod 10 and the translation frame 3. As another way, such as Figure 5 As shown, a translation cylinder 21 is provided on the translation frame 3 and the piston rod of the translation cylinder 21 is fixedly connected to the material removal rod 10. The translation cylinder 21 drives the material removal rod 10 to move horizontally, and the syringe 20 lifted from the positioning rod 19a is pushed horizontally to complete the material removal. It has the advantages of simple structure and reliable operation.

[0034] The workbench 1 is fixedly connected with a limit rod 14 and the limit rod 14 is arranged parallel to one side of the fork 4 and the limit rod 14 is abutted against the tooling strip 19. The workbench 1 is axially fixedly connected with a plurality of blocking wheels 15, the blocking wheels 15 are located on one side of the roller 5, the blocking wheels 15 are located on the lower side of the fork 4 and the lower end of the fork 4 can abut against the blocking wheels 15, which can limit the fork 4 from falling off from the translation frame 3, and has the advantage of reliable operation.

[0035] A material discharge port is provided on one side of the workbench 1, and a material guide groove 16 is provided at the material discharge port. The lower end of the material guide groove 16 is connected to the workbench 1. The groove at the lower end of the material guide groove 16 has a sealing plate 17 and a lifting cylinder 18 for driving the sealing plate 17 to rise and fall. The lifting cylinder 18 can drive the sealing plate 17 to rise to seal the groove of the material guide groove 16, so as to facilitate sealing the syringe 20 in the material guide groove 16, which has the advantage of being more convenient to use.

[0036] A row of positioning rods 19a are provided on the tooling strip 19, and the syringe 20 is inserted into the positioning rod 19a. When unloading, the tooling strip 19 equipped with the syringe 20 is transported to the unloading mechanism, and the translation frame 3 is driven to move horizontally and longitudinally by the translation cylinder 8. When the translation frame 3 pushes the fork 4 to the tooling strip 19, the tooling strip 19 can be abutted against the limit rod 14, and the fork groove 4a of the fork 4 is inserted into the positioning rod 19a of the tooling strip 19, the roller 5 pushes the inclined surface to drive the fork 4 to move vertically upward. The syringe 20 fixed on the positioning rod 19a is pushed upward from the positioning rod 19a, and the material removal rod 10 abuts against the outer wall of the syringe 20 and compresses the spring 13. When the lower end of the syringe 20 is separated from the positioning rod 19a, under the action of the elastic force of the spring 13, the material removal rod 10 pushes the syringe 20 to move horizontally outward to remove the syringe 20 from the tooling strip 19 and to the material guide groove 16 through the discharge port, which has the advantages of convenient unloading and not easy to damage the syringe 20.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0038] Although this article uses more terms such as workbench 1, bracket 2, translation frame 3, shift fork 4, fork groove 4a, abutment surface 4b, roller 5, slider 1 6, guide rail 1 7, translation cylinder 8, lifting cylinder 9, material shifting rod 10, guide rod 11, guide sleeve 12, spring 13, limit rod 14, blocking wheel 15, material guide groove 16, blocking plate 17, lifting cylinder 2 18, tooling bar 19, positioning rod 19a, syringe 20, translation cylinder 2 21, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A material unloading mechanism for an automatic syringe assembly line, comprising a support (2) arranged on a workbench (1), the support (2) being provided with a translation frame (3) and a driving mechanism for driving the translation frame (3) to reciprocate horizontally and longitudinally, characterized in that: The translation frame (3) is provided with a shift fork (4) capable of reciprocating vertically lifting and lowering relative to the translation frame (3); the upper end surface of the shift fork (4) is horizontally arranged; the outer edge of the shift fork (4) is provided with a row of parallel fork grooves (4a); the translation frame (3) is provided with a horizontally arranged material shifting rod (10); both ends of the material shifting rod (10) are fixedly connected to a horizontally arranged guide rod (11); the translation frame (3) is fixedly connected to two horizontally arranged guide sleeves (12) and the guide rod (11) passes through the guide sleeves (12); a spring (13) is sleeved on the guide rod (11) and the two ends of the spring (13) respectively abut against the material shifting rod (10) and the translation frame (3).

2. The unloading mechanism of the syringe automatic assembly line according to claim 1 is characterized in that: The lower end surface of the shift fork (4) is provided with an inclined abutment surface (4b), and a plurality of rollers (5) are axially fixedly connected to the workbench (1), and the rollers (5) abut against the abutment surface (4b).

3. The unloading mechanism of the syringe automatic assembly line according to claim 1 is characterized in that: The inner end of the shift fork (4) is fixedly connected with a slider (6), and the outer side wall of the translation frame (3) is fixedly connected with a vertically arranged guide rail (7), and the guide rail (7) is embedded in the slide groove of the slider (6).

4. The unloading mechanism of the syringe automatic assembly line according to claim 1, 2 or 3, characterized in that: The driving mechanism is a translation cylinder (8) whose cylinder body is fixedly connected to the workbench (1), and the piston rod of the translation cylinder (8) is fixedly connected to the translation frame (3).

5. The unloading mechanism of the syringe automatic assembly line according to claim 1 or 3, characterized in that: A lifting cylinder (9) is vertically arranged on the translation frame (3), a cylinder body of the lifting cylinder (9) is fixedly connected to the translation frame (3), and a piston rod of the lifting cylinder (9) is fixedly connected to the shift fork (4).

6. The unloading mechanism of the syringe automatic assembly line according to claim 1, 2 or 3, characterized in that: A limiting rod (14) is fixedly connected to the workbench (1), and the limiting rod (14) is arranged parallel to one side of the shift fork (4), and the limiting rod (14) is provided for the tooling strip (19) to abut against.

7. The unloading mechanism of the syringe automatic assembly line according to claim 2 is characterized in that: A plurality of blocking wheels (15) are axially fixedly connected to the workbench (1), the blocking wheel (15) is located on one side of the roller (5), the blocking wheel (15) is located on the lower side of the shift fork (4), and the lower end of the shift fork (4) can abut against the blocking wheel (15).

8. The unloading mechanism of the syringe automatic assembly line according to claim 1, 2 or 3, characterized in that: A material discharge port is provided on one side of the workbench (1), and a material guide trough (16) is provided at the material discharge port. The lower end of the material guide trough (16) is connected to the workbench (1). The notch at the lower end of the material guide trough (16) has a blocking plate (17) and a lifting cylinder (18) for driving the blocking plate (17) to rise and fall. The lifting cylinder (18) can drive the blocking plate (17) to rise to block the notch of the material guide trough (16).

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