Preheating mechanism of bus tube heat shrinkage furnace

By using a preheating mechanism in the busbar heat shrinking oven, and utilizing a combination design of a medium-wave infrared heating plate and adjustment components, efficient preheating of the heat shrink sleeve is achieved, solving the problem of low heat shrinking efficiency, reducing energy consumption, and improving production quality.

CN224343389UActive Publication Date: 2026-06-09KAICHEN ENERGY TECH (TIANJIN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KAICHEN ENERGY TECH (TIANJIN) CO LTD
Filing Date
2025-07-01
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing busbar heat shrink sleeves have low heat shrinking efficiency in the heat shrinking furnace, resulting in increased energy consumption.

Method used

A preheating mechanism for a busbar heat shrinking oven is designed. The heat shrinking sleeve is preheated by far-infrared rays generated by a mid-wave infrared heating plate. The heating heat is increased in a stepwise manner through multiple sets of preheating components. The preheating area is increased or decreased by adjusting the ring shell spacing of the components to ensure the softening quality of the heat shrinking sleeve.

Benefits of technology

This improved the softening efficiency of the heat shrink sleeve, reduced the energy consumption of the heat shrink furnace, and ensured production quality and the practicality of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a preheating mechanism for a busbar heat shrink furnace, relating to the field of busbar processing technology. It aims to solve the technical problem of slow heating and increased energy consumption in current heat shrinking processes where the heat shrink sleeve is directly processed in the furnace. The mechanism includes a preheating component and an adjusting component. The preheating component consists of a ring shell and an inner ring, with the inner ring fixed within a recess in the ring shell. A mid-wave infrared heating plate is arranged in a ring array on the inner ring. The adjusting component is mounted on the upper surface of a base plate via an insert plate. The adjusting component consists of a positioning ring and a combination rod, with the insert plate mounted below the positioning ring. The positioning ring has rod holes on both its upper and lower sides, and connection ports on both sides. This utility model has the advantage of reducing energy consumption in the heat shrink furnace through preheating, further improving production efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of busbar processing technology, and more specifically, to a preheating mechanism for a busbar heat shrink furnace. Background Technology

[0002] A busbar conduit is a tubular component with protective and insulating functions. It is primarily used to house and protect busbars (generally referring to conductors that collect, distribute, and transmit electrical energy in a power system, such as copper or aluminum busbars), ensuring the safe and stable transmission of current. In building distribution rooms and distribution boxes, busbar conduits protect the busbars, safely and efficiently distributing electrical energy to various power consumption areas, meeting the power supply needs of lighting, sockets, and other electrical equipment, while simultaneously preventing electrical safety hazards to people inside the building.

[0003] Current processing involves attaching heat-shrink sleeves to the outside of busbar conduits, using a heat-shrinking process to ensure a tight fit and protective layer. Existing equipment typically performs heat shrinking directly in a heat shrink oven. However, heat-shrink sleeves generally heat up slowly, and the oven's reliance on heat conduction results in slow shrinking efficiency, significantly increasing energy consumption and increasing the size of the finished product. Therefore, we propose a preheating mechanism for a busbar conduit heat shrink oven. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a preheating mechanism for a busbar heat shrink furnace, so as to solve the technical problem that the heat shrinking process is completed directly through the heat shrink furnace in the current equipment, and the heat shrink sleeve is heated slowly, resulting in increased energy consumption.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a preheating mechanism for a busbar heat shrinking furnace, comprising a preheating component and an adjusting component. The preheating component consists of a ring shell and an inner ring component, with the inner ring component fixed inside a recess in the ring shell. A mid-wave infrared heating plate is distributed in a ring array on the inner ring component. The adjusting component is mounted on the upper surface of a base plate via a insert plate. The adjusting component consists of a positioning ring and a combination rod, with the insert plate mounted on the lower side of the positioning ring. Rod holes are provided on both the upper and lower sides of the positioning ring, and connection ports are provided on both sides of the positioning ring.

[0006] In use, this invention is powered by an external power source and activated by an external control device. The device is installed at the feeding point of the heat shrink oven. The busbar with the heat shrink sleeve passes through the inner side of the preheating assembly's annular shell. The heat shrink sleeve is preheated by far-infrared rays generated by the mid-wave infrared heating plate. Multiple preheating components ensure a stepped increase in heat, guaranteeing the softening quality of the heat shrink sleeve. By preheating the heat shrink sleeve in advance, the system prevents slow heating due to heat conduction within the oven, thus reducing efficiency and further lowering the oven's energy consumption, ensuring production quality. During preheating, the screw thread drives the sliding plate, which, through the support, synchronously moves the outermost end... The device controls the displacement of the ring shells, with adjacent ring shells linked by a telescopic rod. This allows the device to adjust the spacing between adjacent ring shells during the heating process. By repeatedly increasing and decreasing the spacing, the preheating components repeatedly move on the combined rod. Increasing the spacing increases the preheated area, while decreasing the spacing allows the preheated area to be preheated again, ensuring preheating quality. The piston-like displacement method described above allows for increasing the preheated area and repeated preheating, ensuring the quality of softening of the heat shrink sleeve. Combined with the step-like increase in heat from the preheating components, the softening quality is further guaranteed. The positioning ring and the combined rod are designed as a combination, which allows for easy adjustment of the number of preheating components according to processing requirements, further improving the practicality of the device.

[0007] Preferably, the ring shell and the inner ring are respectively provided with through holes and through holes in a circular array. The bottom of the ring shell is fixed with a connecting seat, and the connecting seats of adjacent ring shells are connected by telescopic rods, with the length between adjacent telescopic rods increasing in a stepped manner.

[0008] Preferably, the upper surface of the base plate has openings on both sides, and the spacing between adjacent openings increases incrementally. The lower end of the insertion plate is inserted into the corresponding opening. The upper surface of the base plate has a recessed sliding plate and a lead screw, and the lead screw thread passes through the sliding plate. A bracket is fixed on the upper side of the sliding plate, and the upper end of the bracket is engaged with the outermost ring shell.

[0009] Preferably, the two ends of the combined rod are respectively provided with a limiting end and a connecting end, the bending degree of the middle curved arm of the combined rod is adapted to the positioning ring, and the outer end of the connecting end is provided with a plug-in end.

[0010] Preferably, the plug-in end is plugged into the connector, and the portion passing through the connector is fixed by a threaded sleeve, and a limiting sleeve is installed on the outer thread of the limiting end.

[0011] Preferably, the limiting end passes through the corresponding through hole and the connecting hole, and the lengths of the limiting end and the insertion end of an adjacent set of combined rods increase in a stepwise manner.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model designs a preheating component. This device is installed at the feeding point of the heat shrink oven. The busbar with the heat shrink sleeve passes through the inner side of the preheating component's ring shell. The heat shrink sleeve is preheated by far-infrared rays generated by the mid-wave infrared heating plate. Multiple sets of preheating components make the heating heat increase in a stepwise manner, ensuring the softening quality of the heat shrink sleeve. By setting up a preheating mechanism to preheat the heat shrink sleeve in advance, it prevents the slow heating of the heat shrink sleeve due to heat conduction in the heat shrink oven, which would lead to reduced efficiency. This further reduces the energy consumption required by the heat shrink oven and ensures production quality.

[0014] 2. This utility model also incorporates an adjustment component. During preheating, the screw thread drives the sliding plate, which in turn moves the outermost ring shell synchronously via the bracket. Adjacent ring shells are linked by a telescopic rod, allowing the device to control the spacing between them during heating. By repeatedly increasing and decreasing the spacing, the preheating component moves repeatedly on the combined rod. Increasing the spacing increases the preheating area, while decreasing the spacing allows for repeated preheating of the preheated area, ensuring preheating quality. This piston-like displacement method allows for increased preheating area and repeated preheating, ensuring the quality of heat shrink sleeve softening. Combined with the step-like increase in heat from the preheating component, the softening quality is further guaranteed. The positioning ring and combined rod are designed as a combination, facilitating adjustment of the number of preheating components according to processing requirements, further improving the device's practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the contracted state of this utility model;

[0017] Figure 3 This is a schematic diagram of the adjustment component of this utility model;

[0018] Figure 4 This is a schematic diagram of the preheating component of this utility model;

[0019] Figure 5 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 6 This is a schematic diagram of the unfolded structure of this utility model.

[0021] The following are the labels in the diagram: 1. Base plate; 101. Sliding plate; 102. Insertion port; 103. Lead screw; 2. Insert plate; 3. Bracket; 4. Preheating component; 401. Ring shell; 402. Perforation; 403. Connecting seat; 404. Medium-wave infrared heating plate; 405. Inner ring; 406. Alignment hole; 5. Adjustment component; 501. Positioning ring; 502. Screw sleeve; 503. Combination rod; 504. Limiting sleeve; 505. Connection port; 506. Rod hole; 507. Limiting end; 508. Insertion end; 509. Connection end; 6. Telescopic rod. Detailed Implementation

[0022] like Figures 1 to 4 As shown, the present invention relates to a preheating mechanism for a busbar heat shrink oven, comprising a preheating component 4 and an adjusting component 5. The preheating component 4 consists of an annular shell 401 and an inner ring component 405, with the inner ring component 405 fixed inside a recess in the annular shell 401. A mid-wave infrared heating plate 404 is arranged in a ring array on the inner ring component 405. The adjusting component 5 is mounted on the upper surface of the base plate 1 via a insert plate 2. The annular shell 401 and the inner ring component 405 are respectively provided with a ring array of through holes 402 and through holes 406. A connecting seat 403 is fixed to the bottom of the annular shell 401, and the connecting seats 403 of adjacent annular shells 401 are connected by telescopic rods 6, with the length of adjacent telescopic rods 6 increasing in a stepped manner. Insertions 102 are provided on both sides of the upper surface of the base plate 1, with the spacing between adjacent insertions 102 increasing progressively. 2. The lower end is inserted into the corresponding socket 102. The upper end of the base plate 1 has a recessed sliding plate 101 and a lead screw 103. The lead screw 103 is threaded through the sliding plate 101. A bracket 3 is fixed on the upper side of the sliding plate 101. The upper end of the bracket 3 is snapped onto the outermost ring shell 401. This device is installed at the feeding point of the heat shrink oven. The busbar with the heat shrink sleeve passes through the inner side of the ring shell 401 of the preheating component 4. The heat shrink sleeve is preheated by the far-infrared rays generated by the mid-wave infrared heating plate 404. Multiple sets of preheating components 4 make the heat of heating increase in a stepwise manner to ensure the softening quality of the heat shrink sleeve. By setting a preheating mechanism to preheat the heat shrink sleeve in advance, the efficiency reduction caused by the slow heating of the heat shrink sleeve due to heat conduction in the heat shrink oven is prevented, further reducing the energy consumption required by the heat shrink oven and ensuring production quality.

[0023] like Figures 3 to 6As shown, the present invention relates to a preheating mechanism for a busbar heat shrink oven, comprising a preheating component 4 and an adjusting component 5. The adjusting component 5 consists of a positioning ring 501 and a combined rod 503, with a plate 2 installed on the lower side of the positioning ring 501. The positioning ring 501 has rod holes 506 on both its upper and lower sides, and connection ports 505 on both sides. The combined rod 503 has a limiting end 507 and a connecting end 509 at both ends, and the combined rod 503 has a curved section in the middle. The arm bend adapts to the positioning ring 501, limiting the sliding position of the ring shell 401 when it retracts through the curved arm. The curved arm also adapts to the busbar diameter. The outer end of the connecting end 509 has a plug-in end 508, which plugs into the connecting port 505. The portion passing through the connecting port 505 is threadedly fixed by a threaded sleeve 502. The outer end of the limiting end 507 is threaded with a limiting sleeve 504. The limiting end 507 passes through the corresponding through hole 402 and the mating hole 406. Adjacent combinations... The lengths of the limiting end 507 and the insertion end 508 of the rod 503 both increase in a stepped manner. During the preheating process, the starting screw 103 drives the sliding plate 101, which in turn drives the outermost ring shell 401 to move synchronously through the bracket 3. The adjacent ring shells 401 are linked by the telescopic rod 6, so that the device can control the adjustment of the distance between adjacent ring shells 401 during the heating process. By repeatedly increasing and decreasing the distance, the preheating component 4 is repeatedly moved on the combined rod 503. Increasing the distance increases the preheating area, and decreasing the distance allows the preheated part to be preheated again to ensure the preheating quality. The above-mentioned piston-like displacement method can increase the preheating area and repeat the preheating to ensure the quality of the heat shrink sleeve softening. Combined with the step-increasing heat of the preheating component 4, the softening quality is further guaranteed. The positioning ring 501 and the combined rod 503 of this device are combined, which makes it convenient to adjust the number of preheating components 4 according to processing requirements and further improves the practicality of the device.

[0024] Working Principle: This embodiment provides a preheating mechanism for a busbar heat shrinking oven. In use, this device is installed at the inlet of the heat shrinking oven. The busbar with the heat shrink sleeve passes inside the annular shell 401 of the preheating component 4. The heat shrink sleeve is preheated by far-infrared rays generated by the mid-wave infrared heating plate 404. Multiple sets of preheating components 4 increase the heat in a stepped manner, ensuring the softening quality of the heat shrink sleeve. During preheating, the screw 103 drives the sliding plate 101, which in turn drives the support 3 to simultaneously move the most... The outer ring shell 401 is displaced, and the adjacent ring shells 401 are linked by the telescopic rod 6, so that the device can control the adjustment of the distance between the adjacent ring shells 401 during the heating process. By repeatedly increasing and decreasing the distance, the preheating component 4 is repeatedly displaced on the combined rod 503. When the distance is increased, the preheating area is increased, and when the distance is decreased, the preheated part is preheated again to ensure the preheating quality. The positioning ring 501 and the combined rod 503 of this device are combined to facilitate the adjustment of the number of preheating components 4 according to processing requirements.

[0025] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A preheating mechanism for a busbar heat shrink oven, comprising a preheating assembly (4) and an adjusting assembly (5), characterized in that: The preheating component (4) consists of a ring shell (401) and an inner ring (405), and the inner ring (405) is fixed in the recess inside the ring shell (401). The inner ring (405) has a ring array of medium-wave infrared heating plates (404). The adjustment component (5) is installed on the upper surface of the base plate (1) through the insert plate (2). The adjustment component (5) consists of a positioning ring (501) and a combination rod (503), and the insert plate (2) is installed on the lower side of the positioning ring (501). The positioning ring (501) has rod holes (506) on both the upper and lower sides, and connection ports (505) are opened on both sides of the positioning ring (501).

2. The preheating mechanism of the busbar heat shrink oven according to claim 1, characterized in that: The annular shell (401) and the inner ring (405) are respectively provided with through holes (402) and through holes (406) arranged in a ring array. The bottom of the annular shell (401) is fixed with a connecting seat (403), and the connecting seats (403) of adjacent annular shells (401) are connected by telescopic rods (6). The length of adjacent telescopic rods (6) increases in a step-like manner.

3. The preheating mechanism of the busbar heat shrink oven according to claim 2, characterized in that: The bottom plate (1) has two slots (102) on both sides of its upper surface, and the spacing between adjacent slots (102) increases incrementally. The lower end of the insert plate (2) is inserted into the corresponding slot (102). The bottom plate (1) has a sliding plate (101) and a lead screw (103) in the recess of its upper surface. The lead screw (103) is threaded through the sliding plate (101). A bracket (3) is fixed on the upper side of the sliding plate (101), and the upper end of the bracket (3) is engaged with the outermost ring shell (401).

4. The preheating mechanism of a busbar heat shrink oven according to claim 3, characterized in that: The combined rod (503) has a limiting end (507) and a connecting end (509) at both ends, and the bending degree of the middle curved arm of the combined rod (503) is adapted to the positioning ring (501). The outer end of the connecting end (509) is provided with a plug-in end (508).

5. The preheating mechanism of a busbar heat shrink oven according to claim 4, characterized in that: The plug end (508) is plugged into the connector (505), and the portion passing through the connector (505) is fixed by the threaded sleeve (502). The outer end of the limiting end (507) is threaded with a limiting sleeve (504).

6. The preheating mechanism of a busbar heat shrink oven according to claim 5, characterized in that: The limiting end (507) passes through the corresponding through hole (402) and the matching hole (406), and the lengths of the limiting end (507) and the insertion end (508) of an adjacent set of combined rods (503) increase in a stepwise manner.