A heating device for handle box processing

By introducing a movable cover and heating box into the heating device, and using a fan to directly deliver heated air, the problem of severe heat loss in existing heating devices is solved, and efficient heating of the handle box is achieved.

CN224447068UActive Publication Date: 2026-07-03NINGBO LINHUA PLASTIC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO LINHUA PLASTIC
Filing Date
2025-06-30
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing heating devices used for processing handle boxes have low heat transfer efficiency, resulting in significant heat loss during the transfer process, which leads to prolonged heating time and low heat utilization.

Method used

A heating assembly was designed, comprising a cover plate that can move up and down and a heating box. The cover plate has a cavity inside, and heated air is directly sent into the cavity by a fan to heat the handle box, thereby shortening the heat transfer distance and improving the heat utilization rate.

Benefits of technology

It improves heating efficiency, shortens heating time, reduces heat loss, and increases heat utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a heating device for processing handle boxes, comprising: a conveyor for conveying handle boxes; a heating assembly disposed at the top of the conveyor for heating the handle boxes; and two guide assemblies disposed above the conveyor, respectively distributed on both sides of the top of the conveyor. The heating assembly includes a cover plate that can move vertically and cover the handle boxes, with a cavity for accommodating the handle boxes at the bottom of the cover plate. The heating assembly also includes a heating box disposed at the top of the cover plate, and the heating box is hollow inside. This utility model, by configuring a heating assembly with a vertically movable cover plate and a cavity for accommodating the handle boxes, reduces the problem of excessive heat loss.
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Description

Technical Field

[0001] This utility model relates to the technical field of handle box processing equipment, specifically a heating device for handle box processing. Background Technology

[0002] Handle boxes, as a common type of packaging container, are widely used in various fields such as food, daily chemicals, and pharmaceuticals. With the continuous growth of market demand and the increasing requirements of consumers for packaging quality and functionality, the types and specifications of handle boxes are constantly being enriched, which also places higher demands on their processing technology and equipment.

[0003] Existing heating devices using resistance wire heating employ a resistance wire as the heating element, heating it with an electric current to heat the handle material. While this method is simple in structure, it has several drawbacks, the most prominent being low heat transfer efficiency. The heat generated by the resistance wire is primarily transferred through conduction and radiation, but conduction is slow, and radiation has limited range and intensity, resulting in insufficient and inefficient heat transfer to the handle material. To improve heat transfer efficiency, some companies have attempted to incorporate fans into the resistance wire heating device, blowing the heat from the wire onto the handle to accelerate heat transfer. However, as the hot air travels from the resistance wire to the handle surface, heat loss is inevitable. Furthermore, the air exchanges heat with the surrounding environment, leading to heat absorption by the air. Utility Model Content

[0004] The purpose of this utility model application is to provide a heating device for processing handle boxes. By setting a heating component, the heating component has a cover plate that moves up and down, and the cover plate has a cavity for accommodating the handle box, thereby reducing the problem of excessive heat loss.

[0005] To address the problems of existing technologies, this utility model application provides a heating device for processing handle boxes, characterized by comprising: a conveyor for conveying handle boxes; a heating assembly disposed at the top of the conveyor for heating the handle boxes; and two guide assemblies disposed above the conveyor, respectively distributed on both sides of the top of the conveyor. The heating assembly includes a cover plate that can move up and down and cover the handle boxes, the bottom of which is provided with a cavity for accommodating the handle boxes. The heating assembly also includes a heating box disposed at the top of the cover plate, the heating box being hollow inside, and a heater for heating air inside the heating box. A fan is also provided at the top of the heating box to deliver air into the heating box.

[0006] Preferably, a channel is provided between the cover plate and the heating box to allow hot air to be introduced into the cavity.

[0007] Preferably, the heating assembly further includes a lifting assembly mounted on the conveyor and capable of moving the cover up and down and placing the cover over the handle box.

[0008] Preferably, the heating assembly further includes two connecting frames that are vertically arranged on both sides of the conveyor, and each connecting frame is vertically provided with a slide rail, and the cover plate is slidably connected to the slide rail.

[0009] Preferably, the heating assembly further includes a lead screw that rotates vertically on a connecting frame, the bottom of the connecting frame is provided with a rotary drive component that can drive the lead screw to rotate, and the lead screw is connected to the cover plate by a thread.

[0010] Preferably, the guide assembly includes a movable baffle that can constrain the handle box to the center position of the conveyor, and guide portions extending outward at both ends of the baffle.

[0011] Preferably, the baffle is further provided with a plurality of guide wheels for guiding the handle box, and a connecting rod is provided on the outside of the baffle. The guiding assembly also includes a support member installed on the conveyor, and the support member slides with the connecting rod. A bolt for fixing the connecting rod is also rotatably provided on the support member.

[0012] Preferably, the baffle is also provided with a photoelectric sensor for detecting the position of the handle box.

[0013] The advantages of this utility model compared to the prior art are:

[0014] This application includes a heating assembly comprising a vertically movable cover plate with an internal cavity for accommodating the handle box. During operation, a rotary drive mechanism rotates a lead screw. This rotation is converted into linear vertical movement of the cover plate via a specific transmission mechanism, allowing the handle box to enter the cavity. This design significantly shortens the distance of hot air transfer, effectively reducing heat loss during the process and thus improving heat utilization. The heating assembly also includes a heating chamber containing a heater and a fan. The heater heats the air, while the fan circulates the air within the heating chamber. The heated air is then rapidly blown onto the surface of the handle box by the fan, transferring heat to the handle box material and heating it. This heating method improves heating efficiency and shortens heating time. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional structural schematic diagram of a heating device for processing a handle box according to this utility model application.

[0016] Figure 2 This is a second three-dimensional structural diagram of a heating device for processing a handle box, as per this utility model application.

[0017] Figure 3 This is a first three-dimensional structural schematic diagram of the heating component of a heating device for processing a handle box, as described in this utility model application.

[0018] Figure 4 This is a second three-dimensional structural diagram of the heating component of a heating device for processing a handle box, as described in this utility model application.

[0019] Figure 5 This is a third perspective structural diagram of the heating component of a heating device for processing a handle box, as described in this utility model application.

[0020] Figure 6 This is a three-dimensional structural diagram of the conveyor and guide assembly of a heating device for processing a handle box, as described in this utility model application.

[0021] The following components are labeled in the diagram: 1. Conveyor; 2. Heating assembly; 21. Cover plate; 211. Cavity; 22. Heating box; 221. Fan; 222. Heater; 23. Lifting assembly; 231. Connecting frame; 232. Slide rail; 233. Lead screw; 234. Rotary drive component; 3. Guide assembly; 31. Stop bar; 311. Guide wheel; 312. Connecting rod; 32. Support component; 33. Photoelectric sensor. Detailed Implementation

[0022] To further understand the features, technical means, and specific objectives and functions achieved by this utility model application, the following detailed description of this utility model application is provided in conjunction with the accompanying drawings and specific embodiments.

[0023] Reference Figures 1-6 As shown, this utility model application provides a heating device for processing handle boxes, including: a conveyor 1 for conveying handle boxes; a heating assembly 2, disposed at the top of the conveyor 1 for heating the handle boxes; and two guide assemblies 3, disposed above the conveyor 1 and distributed on both sides of the top of the conveyor 1. The heating assembly 2 includes a cover plate 21 that can move up and down and cover the handle boxes. The bottom of the cover plate 21 is provided with a cavity 211 for accommodating the handle boxes. The heating assembly 2 also includes a heating box 22 disposed at the top of the cover plate 21. The heating box 22 is hollow and has a heater 222 for heating air. The top of the heating box 22 is provided with a fan 221 for sending air into the heating box 22. A channel is provided between the cover plate 21 and the heating box 22 for sending hot air into the cavity 211.

[0024] When the handle box needs to be heated, it is first placed on conveyor 1, which then starts operating, moving the handle box forward. During this process, guide assembly 3 guides and positions the handle box, allowing it to move below heating assembly 2. The cover plate 21 in heating assembly 2 moves downwards, covering the handle box, which is then located in the cavity 211 inside the cover plate 21. Simultaneously, the fan 221 on top of heating chamber 22 starts operating, drawing outside air into the chamber. The heater 222 inside heating chamber 22 heats the air, raising its temperature to form hot air. This hot air enters the cavity 211 of cover plate 21 through the slot between cover plate 21 and heating chamber 22, heating the handle box within. After heating is complete, the cover plate 21 moves upward and leaves the handle box. The conveyor 1 continues to run, conveying the heated handle box out of the heating device, and at the same time conveying the next handle box to be heated to the bottom of the heating component 2. This cycle is repeated to achieve continuous heating of the handle box.

[0025] The heating assembly 2 also includes a lifting assembly 23 mounted on the conveyor 1, which enables the cover plate 21 to move up and down and cover the handle box with the cover plate 21. The heating assembly 2 also includes two connecting frames 231 respectively vertically arranged on both sides of the conveyor 1, and each connecting frame 231 is vertically provided with a slide rail 232, and the cover plate 21 is slidably connected to the slide rail 232. The heating assembly 2 also includes a lead screw 233 vertically rotating on the connecting frame 231, and the bottom of the connecting frame 231 is provided with a rotary drive member 234 for driving the lead screw 233 to rotate, and the lead screw 233 is threadedly connected to the cover plate 21.

[0026] The rotary drive 234 is activated, driving the lead screw 233 to rotate. Since the lead screw 233 is threadedly connected to the cover plate 21, and the cover plate 21 is slidably connected to the slide rail 232, under the action of the rotating lead screw 233, the cover plate 21 moves downward along the slide rail 232 until it covers the handle box. At this time, the handle box is located in the cavity 211 inside the cover plate 21. After heating is complete, the rotary drive 234 rotates in the opposite direction, driving the lead screw 233 to rotate in the opposite direction, causing the cover plate 21 to move upward along the slide rail 232, leaving the handle box. The conveyor 1 continues to operate, conveying the heated handle box out of the heating device, while simultaneously conveying the next handle box to be heated to the area below the heating assembly 2. This cycle repeats, achieving continuous heating of the handle boxes.

[0027] The guide assembly 3 includes a movable baffle 31 that can constrain the handle box to the center position of the conveyor 1, and guide portions extending outward at both ends of the baffle 31. The guide portions first contact the handle box, guiding the handle box to move within the constrained range of the baffle 31, and then the baffle 31 constrains the handle box to the center position of the conveyor 1, ensuring that the handle box can move below the heating assembly 2.

[0028] The baffle 31 is also equipped with several guide wheels 311 for guiding the handle box. The guide wheels 311 can convert the sliding friction between the handle box and the baffle 31 into rolling friction, greatly reducing the friction force and allowing the handle box to move more smoothly along the baffle 31. This prevents the handle box from getting stuck or damaged due to excessive friction. The baffle 31 is also equipped with a connecting rod 312. The guide assembly 3 also includes a support member 32 mounted on the conveyor 1. The support member 32 is slidably engaged with the connecting rod 312, and a bolt for fixing the connecting rod 312 is rotatably mounted on the support member 32. The baffle 31 is also equipped with a photoelectric sensor 33 for detecting the position of the handle box.

[0029] The above embodiments only illustrate one or more implementation methods of this utility model application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model application, and these all fall within the protection scope of this utility model application. Therefore, the protection scope of this utility model application should be determined by the appended claims.

Claims

1. A heating device for processing a handle box, characterized by: include: Transmitter (1); Used to transport the carrying case; Heating component (2), located at the top of conveyor (1), is used to heat the handle box; The guide assembly (3) is located above the transmitter (1), and there are two of them, which are respectively distributed on both sides of the top of the transmitter (1); The heating assembly (2) includes a cover plate (21) that can move up and down and can cover the top of the handle box. The bottom of the cover plate (21) is also provided with a cavity (211) for accommodating the handle box. The heating assembly (2) also includes a heating box (22) provided on the top of the cover plate (21). The heating box (22) is hollow inside and has a heater (222) for heating air inside. The top of the heating box (22) is also provided with a fan (221) that can send air into the heating box (22).

2. The heating device for handle box processing according to claim 1, characterized in that: A channel is also provided between the cover plate (21) and the heating box (22) to allow hot air to be delivered into the cavity (211).

3. The heating device for handle box processing according to claim 1, characterized in that: The heating assembly (2) also includes a lifting assembly (23) mounted on the transmitter (1) and capable of moving the cover plate (21) up and down and covering the cover plate (21) over the handle box.

4. The heating device for handle box processing according to claim 3, characterized in that: The heating assembly (2) also includes two connecting frames (231) that are vertically arranged on both sides of the transmitter (1), and each connecting frame (231) is vertically arranged with a slide rail (232), and the cover plate (21) is slidably connected to the slide rail (232).

5. The heating device for handle box processing according to claim 4, characterized in that: The heating assembly (2) also includes a lead screw (233) that rotates vertically on a connecting frame (231). The bottom of the connecting frame (231) is provided with a rotary drive (234) that can drive the lead screw (233) to rotate, and the lead screw (233) is connected to the cover plate (21) by a thread.

6. The heating device for handle box processing according to claim 1, characterized in that: The guide assembly (3) includes a baffle (31) that is movable and can constrain the handle box to the center position of the transmitter (1), and the baffle (31) also has guide portions extending outward at both ends.

7. The heating device for handle box processing according to claim 6, characterized in that: The baffle (31) is also provided with a number of guide wheels (311) for guiding the handle box. The baffle (31) is also provided with a connecting rod (312) on the outside. The guide assembly (3) also includes a support (32) installed on the transmitter (1). The support (32) is slidably engaged with the connecting rod (312). The support (32) is also rotatably provided with bolts for fixing the connecting rod (312).

8. The heating device for handle box processing according to claim 7, characterized in that: The baffle (31) is also equipped with a photoelectric sensor (33) for detecting the position of the handle box.