Injector printing and assembling mechanism

Abstract

The utility model provides an injector printing assembling mechanism, which solves the problems of injector assembling stability and the like, and comprises a general assembly disc for driving an injector needle cylinder and a push rod to move along the circumferential direction, the general assembly disc is rotatably connected with a main shaft sleeve assembly, and a push rod cylinder roller assembly for driving the needle cylinder and the push rod to be assembled in an inserted manner is arranged on the general assembly disc. The utility model has the advantages of stable structure, high assembly efficiency and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of syringe assembly, and in particular relates to a syringe printing assembly mechanism. Background Art

[0002] Most of the existing syringes are assembled using automatic assembly lines, which assemble various types of syringes into complete products and can also perform subsequent operations such as packaging and testing. Syringe automated assembly lines usually also have functions such as automatic loading, automatic sorting, automatic testing, automatic assembly and automatic packaging. However, in the actual assembly process, the existing assembly mechanism cannot ensure the accurate insertion and combination of the push rod and the syringe, and it is easy to misalign during the continuous assembly process.

[0003] In order to solve the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, the Chinese patent document discloses a syringe assembly system [202110443402.9], which includes a syringe printer, which is used to print scale lines on the syringe; a lifting conveyor line, which is installed on the side of the syringe printer, and the lower end is located at the discharge port of the syringe printer, which is used to receive and transport the printed syringes; an oil spray box, whose feed slide is connected to the upper end of the lifting conveyor line, and the discharge slide is placed on the syringe feed turntable of the syringe assembly machine, which is used to spray oil on the syringe and deliver it to the syringe assembly machine; a syringe assembly machine, which is used to assemble accessories into a complete syringe.

[0004] The above solution solves the problem of low syringe assembly efficiency to a certain extent, but the solution still has many shortcomings, such as the problem of easy misalignment during continuous assembly. Summary of the invention

[0005] The utility model aims to solve the above problems and provide a syringe printing assembly mechanism with reasonable design and good assembly accuracy.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a syringe printing assembly mechanism, including a general assembly disk that drives the syringe barrel and the push rod to move circumferentially, the general assembly disk is rotatably connected to the main shaft sleeve assembly, and a push rod cylinder roller assembly is provided on the general assembly disk that drives the syringe and the push rod to be plugged and assembled.

[0007] In the above-mentioned syringe printing assembly mechanism, the main shaft sleeve assembly includes a cylindrical shaft sleeve, a ball bearing is rotatably installed between the shaft sleeve and the assembly plate, a flange seat is arranged on the outside of the shaft sleeve and a fixed seat is located above the flange seat, and the fixed seat is connected to the lifting assembly.

[0008] In the above-mentioned syringe printing assembly mechanism, the final assembly disk includes a final assembly shaft, an upper shaft seat is fixed to the upper end of the final assembly shaft, a material tray pressing block is fixed to the upper end of the upper shaft seat, an upper main disk is pressed and fixed between the upper shaft seat and the material tray pressing block, a locking block is fixed between the upper shaft seat, the material tray pressing block and the upper main disk through a threaded part, and a lifting bearing mounting disk is connected to the lower end of the upper shaft seat; the lower end of the final assembly shaft is connected to a spur gear through a steel round flange.

[0009] In the above-mentioned syringe printing assembly mechanism, the push rod barrel roller assembly includes a chassis connected to the main shaft sleeve assembly, and an assembly assembly is installed between the upper end of the chassis and the final assembly plate.

[0010] In the above-mentioned syringe printing assembly mechanism, the assembly component includes a disk cam fixed to the upper end of the chassis and extending circumferentially, the top of the disk cam has an inclined surface and a wavy surface, the lifting bearing mounting plate is fixed with assembly cylinders arranged circumferentially, and roller rods are respectively installed in the assembly cylinders for sliding up and down, the upper end of the roller rod is fixed with a cylinder lifting block located between the lifting bearing mounting plate and the upper main plate, the lower end of the roller rod is fixed with a cam roller seat located between the lifting bearing mounting plate and the disk cam, the cam roller seat is rotatably installed with a rolling bearing pressed against the top of the disk cam, a spring sleeved on the roller rod is installed between the cam roller seat and the assembly cylinder, and the roller rods are assembled and connected with the cylinder lifting block, the cam roller seat and the assembly cylinder in pairs.

[0011] In the above-mentioned syringe printing assembly mechanism, the edge of the upper main disk is circumferentially arranged with first clamping grooves, the final assembly disk is circumferentially provided with a push rod fence opposite to the first clamping groove, the outward side of the cylinder lifting block is provided with a second clamping groove corresponding to the first clamping groove one by one, and the final assembly disk is circumferentially provided with a cylinder fence opposite to the second clamping groove.

[0012] In the above-mentioned syringe printing assembly mechanism, a limiting groove is opened circumferentially on the upper main disk, a first limiting edge opposite to the push rod is arranged on the upper side of the limiting groove, a second limiting edge is arranged on the lower side of the limiting groove, and the first clamping groove is distributed circumferentially along the second limiting edge and is for the push rod to clamp.

[0013] In the above-mentioned syringe printing assembly mechanism, a limiting groove extending in the horizontal direction is arranged in the middle of the cylinder lifting block, and the limiting groove and the second clamping groove are arranged in a cross shape.

[0014] In the above-mentioned syringe printing assembly mechanism, vertically arranged pillars are connected between the push rod fence and the barrel fence, and between the barrel fence and the chassis.

[0015] Compared with the existing technology, the advantages of the utility model are: the final assembly disk drives the syringe and the push rod to rotate circumferentially, and the push rod cylinder roller assembly is used to plug and fix them during the rotation process. The syringe and the push rod correspond one to one to prevent misalignment; the final assembly disk is connected to the corresponding driving structure to realize the transmission of rotational torque, and it has good assembly stability to ensure the stability of the syringe assembly; the assembly component drives the syringe to automatically rise and assemble during the rotation of the final assembly disk, which is suitable for different syringe assembly systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0018] Figure 3 It is a structural schematic diagram of another perspective of the utility model;

[0019] Figure 4 It is a structural sectional view of the utility model;

[0020] In the figure, there are the final assembly plate 1, the final assembly shaft 11, the upper shaft seat 12, the material plate pressing block 13, the upper main plate 14, the locking block 15, the lifting bearing mounting plate 16, the steel round flange 17, the spur gear 18, the main shaft sleeve assembly 2, the shaft sleeve 21, the flange seat 22, the fixing seat 23, the push rod cylinder roller assembly 3, the chassis 31, the first clamping groove 32, the push rod fence 33, the second clamping groove 34, the cylinder fence 35, the limiting groove 36, the first limiting edge 37, the second limiting edge 38, the pillar 39, the assembly assembly 5, the disk cam 51, the assembly cylinder 52, the roller rod 53, the cylinder lifting block 54, the cam roller seat 55, and the rolling bearing 56. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figure 1-4 As shown, a syringe printing assembly mechanism includes a general assembly plate 1 that drives the syringe barrel and the push rod to move in the circumferential direction. The general assembly plate 1 is fixed on the corresponding syringe assembly system. The general assembly plate 1 is rotatably connected with the main shaft sleeve assembly 2. The general assembly plate 1 is provided with a push rod barrel roller assembly 3 that drives the syringe and the push rod to be plugged and assembled. The general assembly plate 1 is usually matched with a barrel needle assembly plate and a push rod rubber plug assembly plate. The push rod and the syringe are transferred between the push rod barrel roller assembly 3 by the middle turntable, and the assembled finished product is transferred to the outside through the discharge plate.

[0023] Specifically, the main shaft sleeve assembly 2 includes a cylindrical shaft sleeve 21, a ball bearing is rotatably installed between the shaft sleeve 21 and the final assembly plate 1, and a flange seat 22 and a fixing seat 23 located above the flange seat 22 are arranged on the outside of the shaft sleeve 21. The shaft sleeve 21 is fixed to the support table through the flange seat 22, and the fixing seat 23 above is also relatively fixed, and a gap is left between the inside of the shaft sleeve 21 and the final assembly plate 1 for the ball bearing to be assembled.

[0024] Furthermore, the assembly plate 1 includes an assembly shaft 11 rotatably connected to the shaft sleeve 21, an upper shaft seat 12 is fixed to the upper end of the assembly shaft 11, a material tray pressing block 13 is fixed to the upper end of the upper shaft seat 12, an upper main plate 14 is pressed and fixed between the upper shaft seat 12 and the material tray pressing block 13, and the upper main plate 14 provides a corresponding clamping structure for the push rod cylinder roller assembly 3; a locking block 15 is fixed between the upper shaft seat 12, the material tray pressing block 13 and the upper main plate 14 through a screw member, and a lifting bearing mounting plate 16 is connected to the lower end of the upper shaft seat 12; and a spur gear 18 is connected to the lower end of the assembly shaft 11 through a steel round flange 17. The spur gear 18 is meshed with the driving structure for transmission, and the assembly shaft 11 drives the upper main plate 14 to rotate.

[0025] Furthermore, the push rod cylinder roller assembly 3 includes a bottom plate 31 connected to the main shaft sleeve assembly 2 and opposite to the upper main plate 14, and an assembly assembly 5 is installed between the upper end of the bottom plate 31 and the final assembly plate 1. The bottom plate 31 and the shaft sleeve 21 are kept fixed, and the assembly assembly 5 cooperates with the bottom plate 31 to drive the needle cylinder to lift up.

[0026] In addition, unlike the conventional assembly structure, the assembly component 5 in the present application includes a disk cam 51 fixed to the upper end of the chassis 31 and extending in the circumferential direction, the top of the disk cam 51 has an inclined surface and a wavy surface, the lifting bearing mounting plate 16 is fixed with an assembly cylinder 52 arranged in the circumferential direction, and roller rods 53 are respectively installed in the assembly cylinder 52 for sliding up and down, and the upper end of the roller rod 53 is fixed with a cylinder lifting block 54 located between the lifting bearing mounting plate 16 and the upper main plate 14, and the lower end of the roller rod 53 is fixed with a cam roller seat 55 located between the lifting bearing mounting plate 16 and the disk cam 51, and the cam roller seat 55 is rotatably installed with a rolling bearing 56 pressed against the top of the disk cam 51, and a spring sleeved on the roller rod 53 is installed between the cam roller seat 55 and the assembly cylinder 52, and the roller rods 53 are assembled and connected with the cylinder lifting block 54, the cam roller seat 55 and the assembly cylinder 52 in pairs.

[0027] The lifting bearing mounting plate 16 rotates circumferentially, driving the assembly cylinder 52 to rotate at the same time, and the rolling bearing 56 at the lower end fits and presses against the plate cam 51, and the cam roller seat 55 is lifted up under the guidance of the inclined surface, and the roller rod 53 pushes the cylinder lifting block 54 to lift up, and the syringe clamped by the cylinder lifting block 54 is then slidably plugged and fixed with the push rod clamped by the upper main plate 14. Then the lifting bearing mounting plate 16 rotates further, and the assembled syringe is removed from the assembly plate 1.

[0028] At the same time, the edge of the upper main disk 14 is circumferentially arranged with a first clamping groove 32 for the push rod end to be clamped, and the final assembly disk 1 is circumferentially provided with a push rod fence 33 opposite to the first clamping groove 32 to prevent the push rod from falling, and the cylinder lifting block 54 is provided with a second clamping groove 34 corresponding to the first clamping groove 32 and for the syringe to be clamped and fixed on the outward side, and the final assembly disk 1 is circumferentially provided with a cylinder fence 35 opposite to the second clamping groove 34, and during the circumferential rotation of the cylinder lifting block 54, the cylinder fence 35 limits it.

[0029] It can be seen that the upper main disk 14 has a limiting groove 36 along the circumferential direction, a first limiting edge 37 opposite to the end of the push rod is arranged on the upper side of the limiting groove 36, a second limiting edge 38 is arranged on the lower side of the limiting groove 36, and the first clamping groove 32 is distributed along the second limiting edge 38 and is clamped by the push rod. The push rod moves to the upper main disk 14 under the action of the middle rotating disk, and the pressing piece at the end of each push rod is clamped in the limiting groove 36, and the rod body passes through the second limiting edge 38 and extends downward.

[0030] Obviously, a limit groove 36 extending in the horizontal direction is provided in the middle of the cylinder lifting block 54, and the limit groove 36 and the second clamping groove 34 are arranged in a cross. The turntable moves the syringe, and the pressing piece at the end of the syringe is clamped in the limit groove 36. The cylinder extends downward along the second clamping groove 34, and the needle head at its end is kept isolated from the disc cam 51.

[0031] Preferably, vertically arranged pillars 39 are connected between the push rod fence 33 and the cylinder fence 35, and between the cylinder fence 35 and the chassis 31. The pillars 39 keep the height of the cylinder fence 35 fixed, maintain the structural stability of the chassis 31 and the fence, and ensure that the fence and the assembly plate 1 have rotation space.

[0032] In summary, the principle of this embodiment is that the assembly tray 1 rotates to drive the syringe and the push rod to move. During the movement, the push rod barrel roller assembly 3 drives the syringe to automatically lift up, so that the syringe and the push rod above are slidably connected. After the connection is completed, the syringe is separated from the assembly component 5.

[0033] 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.

[0034] Although the terms such as assembly plate 1, assembly shaft 11, upper shaft seat 12, material plate pressing block 13, upper main plate 14, locking block 15, lifting bearing mounting plate 16, steel round flange 17, spur gear 18, main shaft sleeve assembly 2, shaft sleeve 21, flange seat 22, fixing seat 23, push rod cylinder roller assembly 3, chassis 31, first clamping groove 32, push rod fence 33, second clamping groove 34, cylinder fence 35, limiting groove 36, first limiting edge 37, second limiting edge 38, support 39, assembly assembly 5, disc cam 51, assembly cylinder 52, roller rod 53, cylinder lifting block 54, cam roller seat 55, rolling bearing 56 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A syringe printing assembly mechanism, comprising a general assembly plate (1) for driving a syringe barrel and a push rod to move in a circumferential direction, wherein the general assembly plate (1) is rotatably connected to a main shaft sleeve assembly (2), characterized in that: The final assembly plate (1) is provided with a push rod cylinder roller assembly (3) for driving the needle cylinder and the push rod to be plugged and assembled.

2. A syringe printing assembly mechanism according to claim 1, characterized in that: The main shaft sleeve assembly (2) comprises a cylindrical shaft sleeve (21), and a ball bearing is rotatably mounted between the shaft sleeve (21) and the assembly plate (1).

3. A syringe printing assembly mechanism according to claim 2, characterized in that: A flange seat (22) and a fixing seat (23) located above the flange seat (22) are arranged on the outer side of the shaft sleeve (21).

4. A syringe printing assembly mechanism according to claim 1, characterized in that: The final assembly disk (1) comprises a final assembly shaft (11), an upper shaft seat (12) is fixed at the upper end of the final assembly shaft (11), a material tray pressing block (13) is fixed at the upper end of the upper shaft seat (12), an upper main disk (14) is pressed and fixed between the upper shaft seat (12) and the material tray pressing block (13), a locking block (15) is fixed between the upper shaft seat (12), the material tray pressing block (13) and the upper main disk (14) via a threaded member, and a lifting bearing mounting disk (16) is connected to the lower end of the upper shaft seat (12); the lower end of the final assembly shaft (11) is connected to a spur gear (18) via a steel round flange (17).

5. A syringe printing assembly mechanism according to claim 4, characterized in that: The push rod cylinder roller assembly (3) comprises a chassis (31) connected to the main shaft sleeve assembly (2), and an assembly assembly (5) is installed between the upper end of the chassis (31) and the assembly plate (1).

6. A syringe printing assembly mechanism according to claim 5, characterized in that: The assembly component (5) comprises a disc cam (51) fixed to the upper end of the chassis (31) and extending in the circumferential direction, the top of the disc cam (51) has an inclined surface and a wavy surface, the lifting bearing mounting plate (16) is fixed with an assembly cylinder (52) arranged in the circumferential direction, and roller rods (53) are respectively installed in the assembly cylinder (52) for sliding up and down, and the upper end of the roller rod (53) is fixed with a cylinder lifting block (54) located between the lifting bearing mounting plate (16) and the upper main plate (14), and the A cam roller seat (55) located between the lifting bearing mounting plate (16) and the disc cam (51) is fixed to the lower end of the roller rod (53); a rolling bearing (56) pressed against the top of the disc cam (51) is rotatably mounted on the cam roller seat (55); a spring sleeved on the roller rod (53) is mounted between the cam roller seat (55) and the assembly cylinder (52); the roller rod (53) is assembled and connected in pairs with the cylinder lifting block (54), the cam roller seat (55) and the assembly cylinder (52).

7. A syringe printing assembly mechanism according to claim 5, characterized in that: The upper main plate (14) has a first engaging groove (32) arranged along the circumferential direction on its edge, the final assembly plate (1) has a push rod fence (33) arranged along the circumferential direction opposite to the first engaging groove (32), the cylinder lifting block (54) has a second engaging groove (34) corresponding to the first engaging groove (32) on its outward side, and the final assembly plate (1) has a cylinder fence (35) arranged along the circumferential direction opposite to the second engaging groove (34).

8. A syringe printing assembly mechanism according to claim 7, characterized in that: The upper main plate (14) is provided with a limiting groove (36) along the circumferential direction, the upper side of the limiting groove (36) is provided with a first limiting edge (37) opposite to the push rod, the lower side of the limiting groove (36) is provided with a second limiting edge (38), and the first clamping groove (32) is distributed along the circumferential direction of the second limiting edge (38) and is provided for clamping of the push rod.

9. A syringe printing assembly mechanism according to claim 7, characterized in that: A limiting groove (36) extending in the horizontal direction is arranged in the middle of the cylinder lifting block (54), and the limiting groove (36) and the second clamping groove (34) are arranged in a cross shape.

10. A syringe printing assembly mechanism according to claim 7, characterized in that: Vertically arranged pillars (39) are connected between the push rod fence (33) and the cylinder fence (35), and between the cylinder fence (35) and the chassis (31).

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