A pin cutting equipment for producing nixie tubes

CN224926946UActive Publication Date: 2026-11-03YIXING YUDA ELECTRONIC CO LTD
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Patent Information

Application Number
CN202522498875.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-11-03
Estimated Expiration
2035-11-25

AI Technical Summary

Technical Problem

Existing digital tube pin cutting equipment suffers from problems such as positioning deviation, inconsistent cutting, uneven cuts, high impact force, pin bending or damage, and spillage of residual material, which affect production accuracy and environmental safety.

Method used

The cutting module uses a U-shaped blade and spring, combined with the precise design of the front and rear molds. It achieves flexible cutting and precise positioning through cylinder drive, and is equipped with an automatic feeding system to ensure cutting stability and waste material collection.

Benefits of technology

It achieves precise alignment and a smooth, burr-free finish in pin cutting, reduces impact damage to the pins, improves cutting accuracy and equipment lifespan, and enables automatic collection of waste material, thus improving the production environment.

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Abstract

The utility model is suitable for the technical field of digital tube, provides a pin cutting equipment for digital tube production, including support plate, the top of support plate is equipped with upper cover, be provided with cutting assembly between support plate and upper cover, cutting assembly includes cylinder, cylinder output end is connected with connecting plate, connecting plate one end is connected with cutting module, cutting module one end is provided with cutting mould, cutting mould bottom is connected with hopper, hopper is fixed on support plate top, cutting module sets up in cutting mould. The device solves the problem that the traditional digital tube pin cutting is easy to damage the pin due to strong impact force, and achieves the purpose of making the pin cutting surface more flat through spring buffering.
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Description

Technical Field

[0001] This utility model relates to the field of digital tube technology, and more specifically, it relates to a pin cutting device for digital tube production. Background Technology

[0002] A digital tube, also known as a glow discharge tube, is an electronic device that displays numbers and other information. As a common electronic display component, digital tubes are widely used in home appliance displays, instrument panels, advertising displays, and traffic signs. In the manufacturing process of digital tubes, lead cutting is a critical processing step, and its quality directly affects the assembly accuracy and electrical performance stability of the product.

[0003] Existing pin cutting equipment mostly uses manual positioning or semi-automatic driving methods. Because the pins of digital tubes are thin and have small spacing, traditional cutting methods are prone to positioning deviations during operation, resulting in inconsistent cutting dimensions or uneven cuts, affecting soldering quality. At the same time, conventional rigid cutters exert significant impact during cutting, easily causing pin bending, solder stripping, or damage, and resulting in poor pin surface flatness.

[0004] In addition, traditional equipment generally requires manual loading and unloading, and the cut-off lead scraps are often scattered on the workbench, which not only increases the amount of cleaning work, but also affects the cleanliness and safety of the production environment.

[0005] Therefore, based on the above problems, this application proposes a pin cutting device for digital tube production. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a pin cutting device for digital tube production.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A pin cutting device for digital tube production includes a support plate with a top cover. A cutting assembly is disposed between the support plate and the top cover. The cutting assembly includes a cylinder with a connecting plate connected to its output end. A cutting module is connected to one end of the connecting plate, and a cutting mold is disposed at one end of the cutting module. A feeding hopper is connected to the bottom of the cutting mold and is fixed to the top of the support plate. The cutting module extends into the cutting mold.

[0009] The present invention is further configured such that: the cutting module includes a U-shaped blade connected to one end of the connecting plate, the U-shaped blade is configured with a U-shaped structure, a spring is connected to the recess of the U-shaped blade, a retaining member is fixedly connected to one end of the spring, and the retaining member is slidably connected to the groove of the U-shaped blade.

[0010] The present invention is further configured such that: the two protruding ends of the U-shaped blade are formed with blade heads.

[0011] The present invention is further configured such that: the cutting mold includes a front mold and a rear mold, the front mold and the rear mold are fitted together, the cutting mold has mounting holes circumferentially formed, and a placement groove is formed between the front mold and the rear mold.

[0012] The present invention is further configured such that: two component channels are symmetrically opened at the bottom position of the rear mold, and a retaining post is formed between the two component channels; a scribing channel is opened at the corresponding component channel position of the front mold.

[0013] The present invention is further configured such that: a feeding chamber is provided at the center of the feeding hopper, and mounting holes are provided around the circumference of the feeding hopper, the mounting holes corresponding to the mounting holes.

[0014] The present invention is further configured such that: a through hole is provided on the support plate, the through hole corresponds to the position of the hopper, a bottom shell is provided at the bottom of the support plate, and a feeding assembly is provided at the top of the bottom shell.

[0015] The present invention is further configured such that: the feeding component includes two symmetrical sets of slide rails, a slider is slidably connected on the slide rails, a feeding frame is fixedly connected to the top of the slider, and the feeding frame is configured with a rectangular shell structure.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] This invention ensures the stability and alignment accuracy of the cutting tool during the cutting process through a precise fit between the cutting module and the cutting mold. The U-shaped blade and the supporting component, aided by springs, enable flexible cutting, effectively preventing burrs or deformation at the lead cut. The combined structure of the front and rear molds in the cutting mold allows the scriber channel and the sub-channels to work together, resulting in an accurate and smooth cutting path. The limiting action of the supporting pillars and components absorbs the impact force during cutting, improving cutting stability and mold durability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the pin cutting equipment for digital tube production according to this utility model.

[0019] Figure 2 This is an exploded view of a pin cutting device for digital tube production according to this utility model.

[0020] Figure 3 This is an exploded view of the cutting component in this utility model.

[0021] Figure 4This is a schematic diagram of the cutting mold in this utility model.

[0022] Figure 5 This is a structural schematic diagram of the cutting component from another perspective in this utility model.

[0023] Figure 6 This is an exploded view of the feeding assembly in this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Support plate; 11. Through hole; 12. Bottom shell; 2. Top cover; 21. Oval hole; 3. Cutting assembly; 31. Cylinder; 32. Connecting plate; 33. Cutting module; 331. U-shaped blade; 332. Spring; 333. Supporting component; 334. Blade head; 34. Cutting mold; 341. Front mold; 3411. Scoring channel; 342. Rear mold; 3421. Dividing channel; 3422. Supporting column; 343. Mounting hole; 344. Storage slot; 35. Feed hopper; 351. Feeding cavity; 352. Mounting mating hole; 4. Feeding assembly; 41. Slide rail; 42. Slider; 43. Feeding frame; 5. Digital tube. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] Example 1, please refer to Figure 1-6 The present invention provides the following technical solution:

[0028] Specifically, it refers to a pin cutting device for digital tube production, including a support plate 1, which provides an installation environment for its top components. A top cover 2 is installed on the top of the support plate 1. A cutting component 3 is arranged between the support plate 1 and the top cover 2. The cutting component 3 is used to cut the pins of the digital tube 5. A feeding component 4 is arranged at the bottom of the cutting component 3. The feeding component 4 is used to collect the pin residue after cutting.

[0029] The support plate 1 has a through hole 11, the bottom of the support plate 1 has a bottom shell 12, and the top of the bottom shell 12 has a feeding component 4; the top cover 2 has an oval hole 21, which is opened through and used to place the digital tube 5 at the cutting point of the cutting component 3.

[0030] The cutting assembly 3 includes a cylinder 31, which is arranged horizontally. The output end of the cylinder 31 is connected to a connecting plate 32, and one end of the connecting plate 32 is connected to a cutting module 33. The horizontal movement of the cylinder 31 can drive the connecting plate 32 and the cutting module 33 to achieve horizontal displacement. One end of the cutting module 33 is provided with a cutting mold 34, and the bottom of the cutting mold 34 is connected to a feeding hopper 35. The feeding hopper 35 is fixed to the top of the support plate 1, and the position of the feeding hopper 35 corresponds to the position of the through hole 11, so that the cut material can pass through the hopper 35 and fall into the feeding assembly 4 through the through hole 11.

[0031] The cutting module 33 includes a U-shaped blade 331 connected to the front end of the connecting plate 32. The U-shaped blade 331 has an overall "U" shape, and a spring 332 is installed in its recess. One end of the spring 332 is fixedly connected to a retaining member 333, which can slide along the groove of the U-shaped blade 331. The two ends of the U-shaped blade 331 extend forward to form cutting heads 334, which are used to cut the pins of the digital tube.

[0032] The cutting mold 34 includes a front mold 341 and a rear mold 342, which are fitted together to form a mold cavity. The cutting mold 34 is composed of the front mold 341 and the rear mold 342, which are fitted together to form the mold cavity. Several mounting holes 343 are distributed around the cutting mold 34. A placement groove 344 is formed between the front mold 341 and the rear mold 342 for placing and stabilizing the pin positions of the digital tube 5 during the cutting process.

[0033] The bottom of the rear mold 342 has two sets of channels 3421 symmetrically formed. The two sets of channels 3421 are adapted to the shape of the cutter head 334, allowing the cutter head 334 to pass through. A retaining post 3422 is formed between the two sets of channels 3421. The size of the retaining post 3422 is smaller than the size of the groove in the middle of the U-shaped cutter 331, allowing the U-shaped cutter 331 to slide horizontally relative to the retaining post 3422. The retaining post 3422 is used to limit and support the retaining member 333 during the cutting action. The front mold 341 has a slicing channel 3411 at the position corresponding to the channel 3421, allowing the cutter head 334 of the U-shaped cutter 331 to slide back and forth, thereby realizing the transverse cutting action of the pin.

[0034] The feeding hopper 35 has a feeding chamber 351 at its center, which communicates with the through hole 11 to guide the cut-off lead residue into the feeding assembly 4. The feeding hopper 35 has several mounting holes 352 distributed around its perimeter. These mounting holes 352 correspond one-to-one with the mounting holes 343 of the cutting mold 34. Bolts or other columnar positioning components can pass through the mounting holes 352 and connect to the mounting holes 343 for positioning. Therefore, the mold can be changed according to the shape of the digital tube 5 to be cut.

[0035] The cutting module 33 extends entirely into the cutting mold 34, and the cutting module 33 can reciprocate horizontally relative to the cutting mold 34. Specifically, when cutting the pin 5 of the digital tube, the cylinder 31 is activated and outputs thrust, driving the connecting plate 32 to move the cutting module 33 forward in the horizontal direction. As the connecting plate 32 moves, the cutting module 33 gradually extends into the front mold 341 of the cutting mold 34.

[0036] During this process, the U-shaped blade 331 and the supporting member 333 move horizontally along the slicing channel 3411 provided in the front mold 341. When the front end of the supporting member 333 moves to abut against the supporting post 3422 in the rear mold 342, the supporting member 333 is blocked and stops moving forward, while the U-shaped blade 331 continues to move forward under the continuous thrust output by the cylinder 31. At this time, the U-shaped blade 331 generates relative displacement with respect to the supporting member 333, and the spring 332 in the groove of the U-shaped blade 331 is gradually compressed, storing elastic potential energy. As the U-shaped blade 331 continues to advance, the blade heads 334 extending forward on both sides slide into the two sets of channels 3421 provided at the bottom of the rear mold 342. The direction of movement of the blade heads 334 is perpendicular to the pin direction of the digital tube 5, forming a cutting force. When the compression of spring 332 reaches its design limit and the retaining member 333 can no longer be compressed, the cutting head 334 of the U-shaped blade 331 aligns with the root of the pin of the digital tube 5 and performs a cutting action, achieving precise cutting of the pin. After the pin is completely cut off, cylinder 31 retracts in the reverse direction, driving the connecting plate 32 and U-shaped blade 331 to retract as a whole. Under the action of the restoring force, spring 332 pushes the retaining member 333 back to its initial position, and cutting module 33 exits from cutting mold 34, completing one cutting cycle.

[0037] Therefore, the overall cooperation between the cutting module 33 and the cutting mold 34 ensures the stability of the tool movement and the precise alignment of the cutting position during the cutting process. This allows the U-shaped blade 331 to slide smoothly along the scribing channel 3411 during its forward movement, avoiding deviation or vibration, thus ensuring a smooth and burr-free cut surface for the digital tube 5 pins. Simultaneously, the mutual limiting cooperation between the supporting member 333 and the supporting post 3422, along with the buffering effect of the spring 332, effectively absorbs the impact force generated during cutting, preventing the pins from bending or breaking due to excessive force, further improving cutting accuracy and the service life of the equipment.

[0038] The feeding assembly 4 includes two symmetrically arranged slide rails 41, with sliders 42 slidably connected to the slide rails 41. The top of the sliders 42 is fixedly connected to the feeding frame 43. The feeding frame 43 is a hollow cuboid structure used to receive and temporarily store the lead residue falling from the feeding hopper 35. The sliders 42 can slide along the slide rails 41 to realize the extraction and cleaning operation of the feeding frame 43, which is convenient for maintenance and periodic cleaning.

[0039] The working principle of the pin cutting device for digital tube production provided by this utility model is as follows:

[0040] See Figure 1-6 When using the pin cutting equipment for digital tube production of this utility model, the digital tube 5 to be cut is first placed in the elliptical hole 21 of the upper cover 2, so that its pin portion is directly facing the cutting position of the cutting component 3. After the equipment is started, the cylinder 31 outputs thrust in the horizontal direction, driving the connecting plate 32 and the cutting module 33 to move forward synchronously.

[0041] When the cutting module 33 moves forward to the cutting mold 34, the U-shaped blade 331 and the supporting member 333 together enter the scribing channel 3411 of the front mold 341. After the front end of the supporting member 333 contacts the supporting post 3422 in the rear mold 342, it forms a positioning limit. Under the continuous push of the cylinder 31, the U-shaped blade 331 continues to move forward, gradually compressing the spring 332 between it and the supporting member 333.

[0042] After the spring 332 is compressed to the set stroke, the cutting heads 334 at both ends of the U-shaped cutter 331 slide into the two sets of channels 3421 at the bottom of the rear mold 342. The cutting heads 334 cut the roots of the digital tube 5 in a horizontal direction, thereby completing the cutting action of the pins. During the cutting process, the supporting member 333 and the supporting post 3422 form a stable support to ensure accurate cutting direction and uniform force; the buffering effect of the spring 332 can effectively absorb the impact force and prevent the pins from bending or the cutter from being damaged.

[0043] When cylinder 31 reverses its direction, connecting plate 32 and cutting module 33 retract as a whole. U-shaped blade 331 and supporting member 333 return to their initial positions under the restoring force of spring 332, completing one cutting cycle. The cut-off lead scrap automatically falls into the feeding frame 43 of feeding assembly 4 through the feeding chamber 351 of feeding hopper 35 and the through hole 11 on support plate 1, realizing automatic collection and discharge of scrap.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] It should be understood that the terms "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pin cutting device for digital tube production, characterized in that: The system includes a support plate (1), a top cover (2) is installed on the top of the support plate (1), a cutting assembly (3) is provided between the support plate (1) and the top cover (2), the cutting assembly (3) includes a cylinder (31), the output end of the cylinder (31) is connected to a connecting plate (32), one end of the connecting plate (32) is connected to a cutting module (33), one end of the cutting module (33) is provided with a cutting mold (34), the bottom of the cutting mold (34) is connected to a feeding hopper (35), the feeding hopper (35) is fixed to the top of the support plate (1), and the cutting module (33) extends into the cutting mold (34).

2. The pin cutting equipment for digital tube production according to claim 1, characterized in that: The cutting module (33) includes a U-shaped blade (331) connected to one end of the connecting plate (32). The U-shaped blade (331) is configured as a U-shaped structure. A spring (332) is connected to the recess of the U-shaped blade (331). A retaining member (333) is fixedly connected to one end of the spring (332). The retaining member (333) is slidably connected to the groove of the U-shaped blade (331).

3. The pin cutting equipment for digital tube production according to claim 2, characterized in that: The U-shaped blade (331) has blade heads (334) extending from both ends.

4. The pin cutting equipment for digital tube production according to claim 1, characterized in that: The cutting mold (34) includes a front mold (341) and a rear mold (342). The front mold (341) and the rear mold (342) are fitted together. The cutting mold (34) has mounting holes (343) around it. A storage groove (344) is provided between the front mold (341) and the rear mold (342).

5. The pin cutting equipment for digital tube production according to claim 4, characterized in that: The rear mold (342) has two sets of channels (3421) symmetrically opened at the bottom position, and a retaining post (3422) is formed between the two sets of channels (3421); the front mold (341) has a scribing channel (3411) corresponding to the sub-channels (3421).

6. The pin cutting equipment for digital tube production according to claim 4, characterized in that: The hopper (35) has a feeding chamber (351) at its center and a mounting hole (352) around its circumference. The mounting hole (352) corresponds to the mounting hole (343).

7. The pin cutting equipment for digital tube production according to claim 1, characterized in that: The support plate (1) has a through hole (11) and the through hole (11) corresponds to the position of the hopper (35). The bottom of the support plate (1) is provided with a bottom shell (12) and the top of the bottom shell (12) is provided with a feeding assembly (4).

8. The pin cutting equipment for digital tube production according to claim 7, characterized in that: The feeding assembly (4) includes two symmetrical sets of slide rails (41), a slider (42) is slidably connected on the slide rail (41), and a feeding frame (43) is fixedly connected to the top of the slider (42). The feeding frame (43) is configured with a rectangular shell structure.