Shearing limiting mechanism for rubber plug of injector

Abstract

The utility model discloses a shearing limiting mechanism of an injector rubber plug, and relates to the technical field of injector rubber plug processing. The device comprises a bottom plate, a shearing assembly fixed to the upper side face of the bottom plate, and a limiting assembly used for fixing an injector rubber plug. The shearing device is characterized in that the shearing assembly comprises a first air cylinder fixed to the upper side face of the bottom plate, a first transmission block connected with the telescopic end of the first air cylinder through a first connecting piece, and a triangular blade fixed to one end of the transmission block; the limiting assembly comprises a second air cylinder fixed to the upper side face of the bottom plate, a second transmission block connected with the telescopic end of the second air cylinder through a second connecting piece, and a triangular limiting piece fixed to the end of the second transmission block. The limiting assembly is arranged to assist the shearing assembly in limiting and shearing the rubber plug of the injector, so that the shearing precision is improved, and meanwhile, the device is simple in operation structure, convenient to operate, low in operation cost and high in practical value.

Description

Technical Field

[0001] The utility model belongs to the technical field of syringe rubber plug processing, in particular to a shear limiting mechanism of a syringe rubber plug. Background Art

[0002] The syringe rubber piston blank is sheared, usually by cutting the newly processed syringe rubber piston blank into four equal-sized syringe rubber piston blank sheet components to facilitate subsequent processing, so as to separate the syringe rubber piston blank into individual syringe rubber piston blanks.

[0003] The existing public patent (publication number CN 217943454 U) discloses a shear limiting mechanism for a syringe rubber stopper, including a machine platform, on the bottom of which a support leg is fixed, and the shear limiting mechanism for the syringe rubber stopper also includes: a chassis, the chassis is located directly above the machine platform and has a vertical degree of freedom of movement, and a cross shearing blade is installed on the bottom of the chassis; a material transmission mechanism; a cross-line cross laser positioning light; a surface pressure stabilization component; a limiting component; The shear limiting mechanism for the syringe rubber stopper of the utility model, by using the surface pressure stabilization component and the limiting component, can limit and stabilize the shear state of the syringe rubber piston blank, thereby improving the stability and reliability of the shearing of the syringe rubber piston blank, avoiding the syringe rubber piston blank from shaking during shearing, improving the shearing accuracy, and improving the product yield.

[0004] The shear limiter structure is complex in composition and structure, resulting in cumbersome operation, large space occupation, high operating cost, and low practicality. To this end, we provide a shear limiter mechanism for a syringe stopper to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a shearing and limiting mechanism for a syringe rubber plug, comprising a bottom plate, a shearing assembly fixed to the side of the bottom plate, and a limiting assembly for fixing the syringe rubber plug; the characteristic is that the shearing assembly comprises a cylinder 1 fixed to the side of the bottom plate, a transmission block 1 connected to the telescopic end of the cylinder 1 via a connecting piece 1, and a triangular blade fixed to the end of the transmission block 1;

[0007] The limiting assembly comprises a second cylinder fixed on the side of the bottom plate, a second transmission block connected to the telescopic end of the second cylinder via a second connector, and a triangular limiting piece fixed to the second end of the transmission block.

[0008] The utility model is further configured that the shearing assembly also includes a positioning block 1 fixed to the side surface of the bottom plate, a through groove is provided in the middle of the positioning block 1, and the transmission block 1 is movably arranged in the through groove.

[0009] The utility model is further configured that the limiting assembly also includes a second positioning block fixed to the side surface of the bottom plate, a through groove is provided in the middle of the second positioning block, and the second transmission block is movably inserted into the through groove.

[0010] The utility model is further configured that a shearing groove is arranged in the middle of the triangular limiting member, and the shearing groove matches with the triangular blade.

[0011] The utility model is further configured that a discharge port is arranged in the middle of the bottom plate, and the discharge port is arranged below the triangular blade and the triangular limiting member.

[0012] The utility model is further configured that the shearing assembly and the limiting assembly are arranged opposite to each other, and the syringe plug is clamped and fixed between the triangular limiting component and the triangular blade.

[0013] The utility model has the following beneficial effects:

[0014] The utility model provides a limiting component to assist the shearing component in limiting the shearing of the syringe plug to improve the shearing accuracy. Under the action of the external feeding structure, the syringe plug section moves to between the bottom plate of the triangular blade base plate and the bottom plate of the triangular limiting member base plate, and the bottom plate of the triangular limiting member base plate and the bottom plate of the triangular blade base plate are controlled to gradually approach the plug. The triangular blade base plate bottom plate presses the plug into the inside of the recessed area of ​​the bottom plate of the triangular limiting member base plate. In the process that the bottom plate of the triangular blade base plate and the bottom plate of the triangular limiting member base plate gradually approach each other, the triangular blade base plate bottom plate also gradually enters into the shearing groove to complete the shearing operation of the syringe plug. The above operation structure is simple, the operation is convenient, the operation cost is low, and the practical value is large.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of one side of the overall structure of the utility model.

[0018] Figure 2It is a schematic diagram of the other side of the overall structure of the utility model.

[0019] Figure 3 It is a side view of the overall structure of the utility model.

[0020] Figure 4 It is a top view of the overall structure of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Bottom plate; 2. Shearing assembly; 21. Cylinder 1; 22. Connector 1; 23. Transmission block 1; 24. Triangular blade; 25. Positioning block 1; 3. Limiting assembly; 31. Cylinder 2; 32. Connector 2; 33. Transmission block 2; 34. Positioning block 2; 35. Triangular limiting piece; 4. Discharge port. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0025] See also Figure 1-4 The utility model is a shear limit mechanism for a syringe plug, comprising a base plate 1, a shear assembly 2 fixed to the upper side of the base plate 1, the shear assembly 2 comprising a cylinder 21 fixed to the upper side of the base plate 1, a transmission block 23 connected to the telescopic end of the cylinder 21 via a connecting piece 22, and a triangular blade 24 fixed to the end of the transmission block 23.

[0026] Specifically, the shear limit mechanism proposed in the present application is used for the shearing process of syringe stoppers. The syringe stopper is cut off by setting the shearing component 2, starting the cylinder 21, and the output end of the cylinder 21 drives the linear movement of the transmission block 23 through the connecting piece 22. The triangular blade 24 relatively fixed to the transmission block 23 moves synchronously, contacts and squeezes the syringe stopper. As the triangular blade 24 gradually penetrates into the stopper section, the shearing surface of the triangular blade 24 gradually increases until the shearing of the syringe stopper is completed.

[0027] Furthermore, the shearing assembly 2 also includes a positioning block 25 fixed to the upper side of the base plate 1, and a through slot is provided in the middle of the positioning block 25, and the transmission block 23 is movably arranged in the through slot.

[0028] Specifically, the positioning block 25 is used to balance the linear movement of the transmission block 23. The transmission block 23 is transitionally fitted in the through groove, so that the transmission block 23 is restricted by the inner wall of the through groove during movement and maintains stable linear reciprocating motion. Specific embodiment 2

[0030] See also Figure 1-4 On the basis of the specific embodiment 1, a shear limit mechanism for a syringe plug includes a limit assembly 3 for fixing the syringe plug, wherein the limit assembly 3 includes a cylinder 2 31 fixed to the upper side of the base plate 1, a transmission block 2 33 connected to the telescopic end of the cylinder 2 31 via a connecting member 2 32, and a triangular limit member 35 fixed to the end of the transmission block 2 33.

[0031] Specifically, the limiting component 3 proposed in the present application is used to assist the shearing component 2 in Example 1 in shearing the syringe plug. When it is used, the telescopic end of the cylinder 2 31 drives the reciprocating movement of the transmission block 2 33 through the connecting piece 2 32 to achieve the position adjustment of the triangular limiting member 35. The middle recess of the triangular limiting member 35 is used for placing the syringe plug. As the triangular limiting member 35 gradually approaches, the syringe plug completely enters the triangular recess. In the subsequent shearing process, the inner wall of the triangular recess is used to support and limit the syringe plug. It should be noted that when the plug is sheared, the external clamping structure or the conveying structure continuously feeds the shear limiting structure. The feeding method does not fall within the scope of consideration of the present application and is not further described in detail here.

[0032] Furthermore, the limiting assembly 3 also includes a second positioning block 34 fixed to the upper side of the bottom plate 1 , a through slot is provided in the middle of the second positioning block 34 , and the second transmission block 33 is movably arranged in the through slot.

[0033] Specifically, the positioning block 2 34 has the same purpose as the positioning block 1 25 , and the positioning block 2 34 here is used to balance the stable linear reciprocating movement of the transmission block 2 33 .

[0034] In the above embodiment, the shearing component 2 and the limiting component 3 are arranged opposite to each other, the syringe plug is clamped and fixed between the triangular limiting member 35 and the triangular blade 24, a shearing groove is arranged in the middle of the triangular limiting member 35, and the shearing groove cooperates with the triangular blade 24, and a discharge port 4 is arranged in the middle position of the bottom plate 1, and the discharge port 4 is arranged below the triangular blade 24 and the triangular limiting member 35.

[0035] Further descriptions of the shearing component 2 and the limiting component 3 are as follows:

[0036] Under the action of the external feeding structure, the syringe stopper segment moves to between the triangular blade 24 and the triangular limiter 35, and the triangular limiter 35 and the triangular blade 24 are controlled to gradually approach the stopper. The triangular blade 24 presses the stopper into the recessed area of ​​the triangular limiter 35. During the process of the triangular blade 24 and the triangular limiter 35 gradually approaching each other, the triangular blade 24 also gradually enters the shearing groove. After the stopper is sheared into segments, it falls from the discharge port 4 into the external collecting structure under the action of gravity, completing the shearing operation of the syringe stopper.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A shear limit mechanism for a syringe stopper, comprising a base plate (1), a shear assembly (2) fixed to the upper side of the base plate (1), and a limit assembly (3) for fixing the syringe stopper; characterized in that: The shearing assembly (2) comprises a cylinder (21) fixed to the upper side of the base plate (1), a transmission block (23) connected to the telescopic end of the cylinder (21) via a connecting piece (22), and a triangular blade (24) fixed to the end of the transmission block (23); The limiting assembly (3) comprises a second cylinder (31) fixed to the upper side of the base plate (1), a second transmission block (33) connected to the telescopic end of the second cylinder (31) via a second connecting piece (32), and a triangular limiting piece (35) fixed to the end of the second transmission block (33).

2. A shear limiting mechanism for a syringe stopper according to claim 1, characterized in that: The shearing assembly (2) further comprises a positioning block (25) fixed to the upper side of the bottom plate (1), a through slot being arranged in the middle of the positioning block (25), and the transmission block (23) being movably arranged in the through slot.

3. A shear limiting mechanism for a syringe stopper according to claim 1, characterized in that: The limiting assembly (3) further comprises a second positioning block (34) fixed to the upper side of the base plate (1), a through slot being arranged in the middle of the second positioning block (34), and the second transmission block (33) being movably arranged in the through slot.

4. The shear limiting mechanism of a syringe stopper according to claim 1, characterized in that: A shearing groove is arranged in the middle of the triangular limiting member (35), and the shearing groove matches the triangular blade (24).

5. The shear limiting mechanism of a syringe stopper according to claim 1, characterized in that: A discharge port (4) is provided in the middle of the bottom plate (1), and the discharge port (4) is provided below the triangular blade (24) and the triangular stopper (35).

6. The shear limiting mechanism of a syringe stopper according to claim 1, characterized in that: The shearing assembly (2) and the limiting assembly (3) are arranged opposite to each other, and the syringe rubber plug is clamped and fixed between the triangular limiting piece (35) and the triangular blade (24).

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