A hand operated rubber plug punching apparatus

Abstract

The utility model relates to a kind of manual rubber plug punching and cutting equipment, including pedestal, vertical seat, punch holder, male die assembly, female die, operating handle and reset mechanism.Pedestal is supported by station foot, female die is fixed in pedestal mesa by clamp;Vertical seat is vertically fixed in pedestal, and its cavity and positioning groove install adjustable height punch holder;Male die assembly is made of guide pillar, quick-change die holder and punch, and forms perpendicular sliding pair with punch holder;Operating handle is hinged male die by pressure head and connecting rod, and uses lever principle to enlarge operating force;Reset mechanism includes compression spring between pedestal and male die fixed plate, tensile spring between punch holder and male die limit pin, to realize automatic reset.The equipment is suitable for small-batch rubber plug punching and cutting, with the advantages of quick-change tooling, accurate alignment, labor-saving operation and efficient reset.

Description

Technical Field

[0001] This utility model discloses a rubber stopper punching and cutting device, and in particular relates to a manual rubber stopper punching and cutting device that is easy to operate, simple in structure, highly efficient, safe and reliable, and is suitable for punching and cutting butyl rubber stoppers in the pharmaceutical industry. Background Technology

[0002] Punching is a critical process in rubber stopper production, and its quality directly affects the appearance, dimensions, structure, and sealing reliability of the rubber stoppers. Large pneumatic / hydraulic punching equipment is bulky, costly, and energy-intensive, making it unsuitable for small-batch, multi-variety, or rapid on-site operations. Manual cutting of rubber stoppers is extremely inefficient, cannot guarantee cut quality and dimensional accuracy, and poses significant risks to operators, including fatigue and potential knife cuts. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a manual rubber stopper punching device, which solves the problem of low efficiency in small-batch production of rubber stoppers, realizes fast and accurate punching operation, and reduces equipment costs.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is a manual punching and cutting rubber stopper device, comprising: a base, a stand, a punch frame, a punch assembly, a die, an operating handle, and a reset mechanism. The base serves as the basic support platform for the device; the stand is vertically fixed to the base; the punch frame is adjustablely installed on the stand, providing vertical guidance; The punch assembly includes a punch, a punch guide post, a quick-change die holder, a punch fixing plate, a punch head, and a punch limiting pin. It achieves strictly vertical movement through sliding cooperation with the punch holder. The die is fixed to the base by a clamp and is coaxially aligned with the punch. The operating handle is hinged between the punch holder and the punch assembly through a linkage mechanism to transmit operating force. The reset mechanism includes a compression spring and a tension spring, which act on the punch assembly and the punch holder respectively to drive the reset.

[0005] In the preferred embodiment, the base provides overall support stability, the table surface is precision machined to ensure flatness, the feet are connected by screws to adjust the working height, a clamp is provided, the die is fixed to the worktable by positioning pins and screws, a built-in material discharge channel is provided, and a drawer can be placed below to collect the punched rubber plugs.

[0006] In a preferred embodiment, the stand is fixedly installed on the base, and has a height adjustment cavity, a positioning pin, and a positioning groove for fixing the punch frame.

[0007] In a preferred embodiment, the punch frame is height-adjustable by being bolted into the positioning groove of the stand, and the built-in circular groove forms a sliding pair with the punch, constraining the movement trajectory to the vertical direction.

[0008] In a preferred embodiment, the punch assembly includes a quick-change die holder and a detachable punch, which are fastened with bolts. The punch cutting edge is precisely machined according to the contour of the rubber plug, supporting quick replacement to adapt to different product specifications. The punch holder is coordinated with the guide post to ensure no lateral displacement during the punching process.

[0009] In a preferred embodiment, the die is fixed to the base by a clamp, and is coaxial with the punch by a locating pin. A blanking hole is opened at the bottom, which is coaxially connected with the blanking hole of the base.

[0010] In a preferred embodiment, when the end of the operating handle is pressed down, the pressure head drives the linkage mechanism to push the punch guide post downward, amplifying the downward pressure and converting it into a vertical punching force.

[0011] In a preferred embodiment, the reset mechanism uses a spring for reset. A compression spring is installed between the base and the upper die holder, and a tension spring is installed between the upper die holder crossbeam and the punch limiting pin to assist in lifting and limit the top dead center. After the punching action is completed and the handle is released, the spring force drives the mechanism to reset, causing the punch and operating handle to automatically return to their initial positions.

[0012] The beneficial effects of this invention are: This equipment utilizes a force-amplifying mechanism, allowing operators to complete the punching process with minimal force, significantly reducing labor intensity and improving work efficiency. Compared to large punch presses, this equipment is smaller, lighter, and lower in cost, making it easy to carry and use on-site. The quick-change die design facilitates rapid die replacement, adapting to the production needs of rubber stoppers of different shapes and sizes. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a side view of the present invention; In the diagram: Base 1, Standing foot 101, Stand 2, Punch frame 3, Punch 4, Punch guide post 401, Quick change die holder 402, Punch fixing plate 403, Punch punch 404, Punch limit pin 405, Die 5, Die clamp 501, Compression spring 601, Reset guide post 602, Tension spring 603, Operating handle 7, Pressure head 701, Connecting rod 702. Detailed Implementation

[0014] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] like Figure 1and Figure 2 As shown, this embodiment provides a manual rubber stopper punching device. Its core structure includes a base 1 serving as the supporting foundation for the device. A foot 101 is fixedly connected to the bottom of the base 1 with screws to support the overall height of the device. A stand 2 is vertically fixed to the base 1 with screws. A punch frame 3 is adjustablely connected to the stand 2 with bolts, facilitating height adjustment. After adjustment, it is secured to the stand 2 with screws. The punch guide post 401 of the punch assembly has its upper end hinged to the punch frame 3 via a pressure head 701 and a connecting rod 702. The precise fit between the punch guide post 401 and the punch frame 3 ensures that the punch assembly can only slide vertically under the constraint of the punch frame. A quick-change die holder 402 is integrally connected to the punch guide post 401. A punch fixing plate 403 is fixedly connected to the upper end of the quick-change die holder 402. The punch 404 is fixedly installed at the lower end of the quick-change die holder 402 with screws.

[0016] The die 5 is fixedly installed in the die holder 501 and is positioned in conjunction with the punch 404 via a pin to ensure precise coaxiality between the die 5 and the punch assembly (especially the punch 404). The die holder 501 is fixedly installed on the base 1 by screws and is provided with positioning pin holes.

[0017] The compression spring 601 is fitted onto the reset guide post 602 and is pre-compressed between the base 1 and the punch fixing plate 403. Its function is to provide an upward reset force to drive the punch assembly to return upward after the stamping action is completed. One end of the tension spring 603 is connected to the punch limiting pin 405, and the other end is connected to the crossbeam of the punch holder 3. Its function is to assist the return of the punch assembly and limit its highest position.

[0018] The operating handle 7 is a component that is manually operated by the operator. The pressure head 701 and the connecting rod 702 form a linkage mechanism. The handle 7 is hinged to the pressure head 701, and the pressure head 701 is then connected to the guide post of the punch assembly through the connecting rod 702. When the operator presses the handle 7, the operating force is transmitted through this linkage mechanism and converted into a downward punching motion of the punch assembly.

[0019] The working process of this equipment is as follows: Step 1: The operator holds the end of the handle 7 and applies downward force. This downward force drives the pressure head 701, which is hinged to the handle 7, and the pressure head 701 in turn drives the connecting rod 702 to move. 702 transmits force and motion to the punch guide post 401, which is hinged to it, overcoming the preload of the compression spring 601 and the tension of the tension spring 603, and pushing the entire punch assembly 4 to move precisely vertically downward along the punch holder 3.

[0020] Step 2: When the punch 4 descends to its working position, the punch 404 contacts the rubber plug material placed in the die 5. The continuous downward pressure causes the punch 404 and the die 5 to work together to complete the punching process of the rubber plug. The punched rubber plug is discharged from the equipment under the action of gravity through the blanking hole below the die 5 and the blanking hole channel on the base 1 aligned with it.

[0021] Step 3: The operator releases the force on handle 7. At this time, the elastic potential energy stored in the compression spring 601, which is in a pre-compressed state, is released, generating an upward thrust that acts between the base 1 and the punch fixing plate 402. Simultaneously, the elastic potential energy stored in the tension spring 603 is also released, assisting in lifting the punch 4 through the tension connected to the punch limiting pin 405. The punch limiting pin 405 also restricts the punch 4 from returning to its highest position. Under the combined action of the compression spring 601 and the tension spring 603, the punch 4 makes a vertical upward reset stroke along the punch holder. The upward movement of the punch 4 drives the connecting rod 702 and the pressure head 701 to move, thereby pushing the handle 7 to rotate around its hinge point back to the initial ready position.

Claims

1. A manual rubber stopper punching and cutting device, characterized in that, include: The base (1) is connected to the bottom foot (101), and the platform is equipped with a die clamp (501) and a material discharge channel; The stand (2) is vertically fixed on the base (1) and has a cavity with a positioning groove; The punch holder (3) is adjustablely installed in the positioning groove of the stand (2) by bolts; The punch assembly includes a punch (4), a punch guide post (401), a quick-change die holder (402), a punch fixing plate (403), a punch head (404), and a punch limiting pin (405). The punch guide post (401) is slidably engaged with the punch holder (3). The die (5) is fixed to the base (1) by the die clamp (501) and is coaxial with the die (5) by the positioning pin; the reset mechanism includes a compression spring (601) pre-compressed between the base (1) and the punch fixing plate (403) and a tension spring (603) connecting the punch limit pin (405) and the punch holder (3).

2. The manual rubber stopper punching device according to claim 1, characterized in that: The quick-change die holder (402) fixes the punch (404) with bolts, and the shape of the punch cutting edge matches the contour of the rubber plug.

3. The manual rubber stopper punching device according to claim 1, characterized in that: The punch guide post (401) and the punch holder (3) form a high-precision sliding pair, which constrains the punch assembly to move only in the vertical direction.

4. The manual rubber stopper punching device according to claim 1, characterized in that: The die holder (501) is provided with a positioning pin hole, and the die (5) and the punch are dynamically coaxially aligned through the pin.

5. The manual rubber stopper punching device according to claim 1, characterized in that: The compression spring (601) is sleeved on the reset guide post (602), and the tension spring (603) restricts the top dead point position of the punch assembly.

6. The manual rubber stopper punching device according to claim 1, characterized in that: A drawer-type rubber stopper collection box is configured below the material discharge channel of the base (1).

7. The manual rubber stopper punching device according to claim 1, characterized in that: The operating handle (7) is hinged in sequence to the pressure head (701), the connecting rod (702) and the punch guide post (401).

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