A lamp cord cutting device
By using a combination of upper and lower cutting heads, the problem of unstable exposed copper wire length caused by plastic springback is solved, achieving stable control of copper wire spacing and improving welding quality, thus enhancing the aesthetics of the cord lamp.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN YIDING INTELLIGENT TECH CO LTD
- Filing Date
- 2025-07-12
- Publication Date
- 2026-06-26
AI Technical Summary
Existing cord lamp production equipment suffers from plastic springback during the cutting of plastic parts, resulting in inconsistent exposed copper wire lengths. This affects welding quality and aesthetics, especially when the lamp spacing is 2.5 cm or less.
The upper and lower cutter heads move in opposite directions, and the combination of transverse and axial blades ensures that the plastic part is completely cut without springing back, exposing the copper wire. Furthermore, the design of the axial blade groove and the blade itself enables stable control of the copper wire spacing.
It achieves stability and uniformity in the exposed length of copper wire, improving welding quality and the aesthetics of LED beads, with particularly significant effects in close-spaced applications.
Smart Images
Figure CN224407849U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cord lamp production equipment, and specifically to a cord lamp cutting device. Background Technology
[0002] Existing cord lamp manufacturing equipment requires separating the plastic portion of the cord from the copper wire during processing to expose the copper wire for soldering and lamp bead bonding. The applicant has designed various wire-cutting devices and applied for Chinese utility model patents. For example, a cutter horizontally cuts the plastic portion of the cord, and then the relative displacement between the cutter and the cord shortens the cut plastic portion, exposing the copper wire. However, this solution has the problem that the displaced plastic portion may spring back to its original position, resulting in inconsistent lengths of exposed copper wire, sometimes too large or too small. This leads to inaccurate lamp bead placement or poor soldering. Furthermore, the product requires a small spacing between adjacent lamp beads, especially when the lamp spacing is 2.5 cm or less. In such cases, insufficient exposed copper wire length makes soldering difficult, resulting in large wrinkles in the cord, unstable lamp bead spacing, and an unsightly appearance. The applicant continues its research and development efforts and hereby submits this patent application. Utility Model Content
[0003] The purpose of this utility model is to provide a wire cutting device for a cord lamp, which addresses the shortcomings of existing cord lamp production equipment, such as the compression of the plastic part next to the copper wire, resulting in poor aesthetics.
[0004] To achieve the above objectives, this utility model is implemented through the following technical solution.
[0005] A cord cutting device for a cord lamp includes a main support, a lifting cylinder mounted on the upper end of the main support, the lifting cylinder driving downwards to connect to a lifting seat, an upper cutter head mounted on the lifting seat, a worktable mounted on the main support, a lower cutter head mounted on the worktable, the upper cutter head and the lower cutter head corresponding to each other, the upper cutter head being movably located above the worktable, the upper cutter head and the lower cutter head each having a horizontally arranged blade, the upper cutter head having an axially arranged blade.
[0006] Furthermore, the upper cutter head includes a rear upper blade, a front upper blade, an axial blade, and an axial blade seat. The rear upper blade and the front upper blade are located at both ends of the axial blade seat. The axial blade seat has an axial blade groove, and the axial blade is fixed in the axial blade groove. The rear upper blade and the front upper blade are used to cut the plastic part of the wire laterally, and the axial blade is used to cut the plastic part axially to expose the copper wire.
[0007] Furthermore, the lower cutter head includes a wire cutter seat, a rear lower blade, and a front lower blade. The rear lower blade and the front lower blade are located at both ends of the wire cutter seat. The upper end of the wire cutter seat has side stops on both sides and a wire groove in the middle. The wire groove of the wire cutter seat is used to position the wire. The rear lower blade and the front lower blade are used to cut the plastic part of the wire laterally.
[0008] Furthermore, there are three axial blade slots, and three axial blades are fixed in the axial blade slots, each corresponding to one of the three copper wires of the leather cable.
[0009] Furthermore, the rear upper blade and the front upper blade are perpendicular to the axial blade, enabling the transverse cutting of the plastic portion of the leather wire.
[0010] Furthermore, the lower rear blade and the lower front blade are parallel to the upper rear blade and the upper front blade, enabling the plastic portion of the cable to be cut from above and below the cable.
[0011] Furthermore, the bottom of the main support is equipped with a slide, which can be adjusted to its position on the cord production equipment.
[0012] Furthermore, a vertical guide rail is fixed on the main support, and the lifting seat is fixed on the vertical slider. The vertical slider slides on the vertical guide rail, which can ensure the stable movement of the upper cutter head.
[0013] Furthermore, there is one or two upper and lower cutting heads, which can process one or two leather threads.
[0014] The beneficial effects of this utility model are as follows: the upper and lower cutting heads move towards each other, and the plastic part of the wire is cut horizontally by the horizontally arranged blades. The plastic part of the wire is cut axially by the axially arranged blades of the upper cutting head, thereby achieving the effect of cutting the wire without compressing the plastic part of the wire, maintaining the overall aesthetics. At the same time, it can shorten the spacing of the cut lines, thereby expanding the variation effect of the LED beads welded to the wire, making the spacing of the LED beads shorter and increasing the aesthetics after lighting. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the first embodiment of the present invention.
[0016] Figure 2 for Figure 1 A schematic diagram of its decomposed structure.
[0017] Figure 3 for Figure 1 A magnified schematic diagram of a local structure.
[0018] Figure 4 This is a schematic diagram of the leather cable processing of this utility model.
[0019] Figure 5 This is a schematic diagram of the second embodiment of the present invention.
[0020] Labels and explanations:
[0021] 01. Cord Wire, 02. Axial Cut, 03. Rear Transverse Cut, 04. Front Transverse Cut, 05. Cutting Plastic Part, 06. Copper Wire, 07. Connecting Part, 1. Main Support, 2. Slide, 3. Workbench, 4. Vertical Guide Rail, 5. Vertical Slider, 6. Lifting Seat, 7. Lifting Cylinder, 8. Rear Upper Blade, 9. Front Upper Blade, 10. Axial Blade, 11. Axial Blade Seat, 12. Axial Blade Groove, 13. Cutting Seat, 14. Rear Lower Blade, 15. Front Lower Blade, 16. Side Stop, 17. Cord Wire Groove. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings.
[0023] See Figure 1 —— Figure 3 The first embodiment of the cord lamp cutting device of this utility model includes: a main support 1, a slide 2 installed at the bottom of the main support 1, the slide 2 being slidably mounted on the track of the cord lamp production equipment, and the cord lamp cutting device being driven to move along the track by an external drive cylinder, thereby adjusting the distance between the cord lamp cutting device and other devices.
[0024] In this embodiment, a vertical guide rail 4 is fixed on the main support 1. A lifting cylinder 7 is installed at the upper end of the main support 1. The lifting cylinder 7 drives the lifting seat 6 downward. The lifting seat 6 is fixed on the vertical slider 5, and the vertical slider 5 slides on the vertical guide rail 4. An upper cutter head is installed on the lifting seat 6, and there are two upper cutter heads.
[0025] In this embodiment, a worktable 3 is mounted on the main support 1, and two lower cutting heads are mounted on the worktable 3. An upper cutting head corresponds to the lower cutting head. The upper cutting head is movably located above the worktable 3.
[0026] The upper cutting head of this embodiment includes a rear upper blade 8, a front upper blade 9, an axial blade 10, and an axial blade holder 11. The rear upper blade 8 and the front upper blade 9 are located at opposite ends of the axial blade holder 11. The axial blade holder 11 has three axial blade slots 12, and three axial blades 10 are fixed in the axial blade slots 12. The rear upper blade 8 and the front upper blade 9 are perpendicular to the axial blade 10.
[0027] It should be added that, in this embodiment, there are three axial blade slots 12 and three axial blades 10, which can be used to cut a three-wire parallel line with three copper wires. If there are two axial blade slots 12 and two axial blades 10, it can be used to cut a two-wire parallel line with two copper wires. If there are four axial blade slots 12 and four axial blades 10, it can be used to cut a four-wire parallel line with four copper wires.
[0028] The lower cutter head of this embodiment includes a tangent seat 13, a rear lower blade 14, and a front lower blade 15. The rear lower blade 14 and the front lower blade 15 are located at both ends of the tangent seat 13. The upper end of the tangent seat 13 has side stops 16 on both sides and a wire groove 17 in the middle. The wire groove 17 can limit the wire and ensure the stability of the tangent. The rear lower blade 14 and the front lower blade 15 are parallel to the rear upper blade 8 and the front upper blade 9.
[0029] Combination Figure 4 When the wire 01 moves between the upper and lower cutting heads, the lifting cylinder 7 drives the lifting seat 6 and the vertical slider 5 to move downwards along the vertical guide rail 4 until the upper and lower cutting heads engage, cutting out the plastic part 05 on the wire 01. At this time, the plastic part 05 separates from the copper wire 06. If an external force is applied to the connecting part 07 of the plastic part 05, the plastic part 05 will detach from the copper wire 06 and fall off, completely exposing the copper wire 06. Therefore, the wire cutting device of this embodiment does not compress the plastic part of the wire 01, maintaining the aesthetics of the processed wire 01. Moreover, the spacing of the exposed copper wires 06 can be adjusted arbitrarily according to design requirements, enabling continuous wire cutting and peeling at shorter intervals with stable spacing. This results in a smaller lamp spacing, denser LED beads, and a higher aesthetic appearance after lighting.
[0030] The wire 01 passes through the wire groove 17 at the upper end of the wire cutter 13 and is located between the two side stops 16 of the wire cutter 13. The upper rear blade 8 and the lower rear blade 14 cut out a rear transverse slit 03, and the upper front blade 9 and the lower front blade 15 cut out a front transverse slit 04. The axial blade 10 cuts downwards into an axial slit 02, exposing the copper wire 06, thus forming a cut plastic part 05 that can be separated from the copper wire 06. At this time, the wire 01 includes the cut plastic part 05 that can be separated from the copper wire 06 and a plastic part that is fixedly connected to the copper wire 06. The wire 01 continues to move, and by applying external force to the connecting part 07 of the cut plastic part 05, the cut plastic part 05 is detached from the copper wire 06 and falls off, fully exposing the copper wire 06 for subsequent production processes such as soldering and bonding of LED beads.
[0031] This embodiment can process two leather threads 01 simultaneously.
[0032] See Figure 5The second embodiment of the cord lamp cutting device of this utility model includes: a main support 1, a slide 2 installed at the bottom of the main support 1, the slide 2 being slidably mounted on the track of the cord lamp production equipment, and the cord lamp cutting device being driven to move along the track by an external drive cylinder, thereby adjusting the distance between the cord lamp cutting device and other devices.
[0033] In this embodiment, a vertical guide rail 4 is fixed on the main support 1. A lifting cylinder 7 is installed at the upper end of the main support 1. The lifting cylinder 7 drives the lifting seat 6 downward. The lifting seat 6 is fixed on the vertical slider 5, and the vertical slider 5 slides on the vertical guide rail 4. An upper cutter head is installed on the lifting seat 6. There is one upper cutter head.
[0034] In this embodiment, a worktable 3 is mounted on the main support 1, and a lower cutter head is mounted on the worktable 3. There is one lower cutter head, and an upper cutter head corresponds to the lower cutter head. The upper cutter head is movably located above the worktable 3.
[0035] The structure of the upper and lower cutting heads in this embodiment is the same as that in Embodiment 1, and will not be described again here.
[0036] This embodiment can process a single leather cable 01.
[0037] Of course, the above-described embodiments are merely preferred examples of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A lamp cord cutting device, characterized by: It includes a main support, a lifting cylinder is installed at the upper end of the main support, the lifting cylinder drives the lifting seat downward, an upper cutter head is installed on the lifting seat, a worktable is installed on the main support, a lower cutter head is installed on the worktable, the upper cutter head and the lower cutter head correspond to each other, the upper cutter head is movably located above the worktable, the upper cutter head and the lower cutter head each have horizontally arranged blades, the upper cutter head has an axially arranged blade.
2. The wire-cutting device for a drop lamp according to claim 1, characterized in that: The upper cutting head includes a rear upper blade, a front upper blade, an axial blade, and an axial blade holder. The rear upper blade and the front upper blade are located at both ends of the axial blade holder. The axial blade holder has an axial blade groove, and the axial blade is fixed in the axial blade groove.
3. The wire-cutting device for a drop lamp according to claim 2, characterized in that: The lower cutter head includes a tangent seat, a rear lower blade, and a front lower blade. The rear lower blade and the front lower blade are located at both ends of the tangent seat. The upper end of the tangent seat has side stops on both sides and a wire groove in the middle.
4. The wire-cutting device for a drop lamp according to claim 2, characterized in that: The axial blade groove has three slots, and there are three axial blades, each fixed in one of the slots.
5. A wire-cutting device for a drop lamp according to claim 2, characterized in that: The rear upper blade and the front upper blade are perpendicular to the axial blade.
6. The wire-cutting device for a drop lamp according to claim 3, characterized in that: The lower rear blade and the lower front blade are parallel to the upper rear blade and the upper front blade.
7. A wire-cutting device for a drop lamp according to any one of claims 1-6, characterized in that: A slide is installed at the bottom of the main support.
8. A wire-cutting device for a drop lamp according to any one of claims 1-6, characterized in that: The main support is fixed with a vertical guide rail, the lifting seat is fixed on the vertical slider, and the vertical slider slides on the vertical guide rail.
9. A wire-cutting device for a drop lamp according to claim 1, characterized in that: The upper and lower cutting heads may be one or two.