A hot melt device for plastic processing

CN224726466UActive Publication Date: 2026-09-08常州市冠通新材料科技有限公司
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Patent Information

Application Number
CN202521796488.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-22
Publication Date
2026-09-08
Estimated Expiration
2035-08-22

AI Technical Summary

Technical Problem

[0002]塑料管道热熔连接工艺存在显著技术瓶颈:传统热熔设备无法有效隔绝热熔界面与空气接触,导致聚合物高温氧化劣化,降低接头密封强度;同时,开放式热熔操作热损失严重,能耗高且加热不均;常规解决方案在防氧化与操作便捷性间难以平衡——惰性气体保护成本高昂,密闭式装置又难以适配不同管径;这导致连接部位易脆化渗漏、使用寿命缩减,尤其户外施工时更面临环境干扰

Benefits of technology

本实用新型通过将套管组件中的底座套和上罩套套设在需要拼接的两根管道外侧,在上罩套的竖滑仓内设置热熔组件,将两根管套的一端分别贴合在热熔组件的两侧,由热熔组件对管套的端口进行加热熔化,再将热熔组件从竖滑仓中抽出,滑动两根管套,使两根管道的端口拼接并固定。

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Abstract

The utility model discloses a kind of hot melting devices for plastic processing, it is related to the technical field of plastic hot melting splicing.The utility model includes sleeve assembly, hot melting assembly and four groups of insulation components.Sleeve assembly is composed of horizontal semicircular tubular base sleeve and the upper cover sleeve that can be buckled on it;Upper cover sleeve middle section is fixedly arranged vertical sliding bin, base sleeve middle section is fixedly arranged vertical sliding sleeve, and the both are butted.Hot melting assembly is vertically slidably sleeved in vertical sliding bin.Base sleeve vertical sliding sleeve both sides and the pipe sleeve of upper cover sleeve vertical sliding bin both sides are respectively horizontally slidably sleeved with a group of insulation components.The utility model is by being sleeved with the upper cover sleeve of base sleeve on the outside of two pipelines to be spliced, so that the two pipeline ports are heated and melted by adhering to the two sides of hot melting assembly;Then, hot melting assembly is extracted, and two pipelines are slid to make molten port splicing fixed.Insulation component is slidably sleeved on the outside of pipeline, effectively insulates port and air contact, prevent oxygen from oxidizing pipeline during hot melting process, improve splicing quality.
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Description

Technical Field

[0001] This utility model belongs to the field of plastic hot melt splicing technology, and in particular relates to a hot melt device for plastic processing. Background Technology

[0002] The hot-melt connection process for plastic pipes faces significant technical bottlenecks: traditional hot-melt equipment cannot effectively isolate the hot-melt interface from air, leading to high-temperature oxidation and deterioration of the polymer, reducing the sealing strength of the joint; at the same time, open hot-melt operation results in severe heat loss, high energy consumption, and uneven heating; conventional solutions struggle to balance oxidation prevention and ease of operation—inert gas protection is costly, while closed devices are difficult to adapt to different pipe diameters; this leads to brittle and leaky joints, reduced service life, and environmental interference, especially during outdoor construction.

[0003] To address these issues, we provide a hot melt apparatus for plastic processing. Utility Model Content

[0004] The purpose of this utility model is to provide a hot-melt device for plastic processing. This device involves placing a base sleeve and an upper cover sleeve from a sleeve assembly on the outside of two pipes to be joined. A hot-melt assembly is installed inside the vertical sliding chamber of the upper cover sleeve. One end of each of the two sleeves is attached to both sides of the hot-melt assembly, which heats and melts the ends of the sleeves. The hot-melt assembly is then pulled out of the vertical sliding chamber, and the two sleeves are slid to join and fix the ends of the two pipes. An isolation component is installed inside the sleeves and fitted onto the outside of the two sleeves, isolating the ends of the two sleeves from the outside air and preventing oxygen in the air from oxidizing the pipes during hot-melt processing.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a hot-melt device for plastic processing, including a sleeve assembly, a hot-melt assembly, and four sets of isolation assemblies. The sleeve assembly includes a base sleeve and an upper cover sleeve. Both the base sleeve and the upper cover sleeve are horizontally placed semi-circular tubular structures. The upper cover sleeve is fastened to the upper end of the base sleeve. A vertical sliding chamber is fixed in the middle section of the upper cover sleeve, and a vertical sliding sleeve is fixed in the middle section of the base sleeve. The vertical sliding chamber and the vertical sliding sleeve are connected. The hot-melt assembly is vertically slidably sleeved in the vertical sliding chamber. An isolation assembly is horizontally slidably sleeved in the sleeves on both sides of the vertical sliding sleeve of the base sleeve. An isolation assembly is horizontally slidably sleeved in the sleeves on both sides of the vertical sliding chamber of the upper cover sleeve.

[0006] A further feature of this invention is that an air outlet pipe is fixedly installed on the outer side of the two sides of the vertical sliding chamber, and an air inlet pipe is fixedly installed on the outer side of the two sides of the vertical sliding chamber, respectively.

[0007] A further feature of this invention is that a set of support feet is fixed to the lower outer wall of the base sleeve.

[0008] A further feature of this invention is that the isolation component includes a rubber sleeve and a sliding sleeve, both of which are semi-cylindrical structures. The rubber sleeve is fixedly fitted inside the sliding sleeve. The sliding sleeve of the two isolation components inside the base sleeve is slidably fitted onto the inner wall of the tube of the base sleeve, and the sliding sleeve of the two isolation components inside the upper cover sleeve is slidably fitted onto the inner wall of the tube of the upper cover sleeve.

[0009] A further feature of this invention is that the inner walls of both the base sleeve and the upper cover sleeve are fixedly provided with sliding grooves, the length direction of the sliding grooves in the base sleeve and the upper cover sleeve is parallel to the length direction of the base sleeve and the upper cover sleeve, and the outer wall of the sliding sleeve is fixedly provided with sliding keys, and the sliding keys on the outer wall of each sliding sleeve are respectively slidably sleeved in each sliding groove.

[0010] A further feature of this invention is that the hot melt assembly includes a plate sleeve and a heating wire. The plate sleeve is a plate-shaped structure with an open top and a hollow interior. The heating wire is fixedly installed inside the plate sleeve, and the plate sleeve is vertically slidably sleeved inside the vertical sliding chamber.

[0011] A further feature of this invention is that the open end of the plate sleeve is provided with a plate sleeve end cap, the two ends of the heating wire are fixedly connected to the plate surface of the plate sleeve end cap, and an upper pull handle is fixedly provided at the upper end of the plate sleeve end cap.

[0012] This utility model has the following beneficial effects: This invention involves placing the base sleeve and the upper cover sleeve of the sleeve assembly on the outside of the two pipes to be spliced. A heat fusion assembly is installed in the vertical sliding chamber of the upper cover sleeve. One end of each of the two sleeves is attached to both sides of the heat fusion assembly, which heats and melts the ends of the sleeves. The heat fusion assembly is then pulled out of the vertical sliding chamber, and the two sleeves are slid to splice and fix the ends of the two pipes.

[0013] This invention provides an isolation component inside the pipe sleeve, which is then fitted onto the outside of the two pipe sleeves to isolate the ports of the two pipe sleeves from the outside air, thus preventing oxygen in the air from oxidizing the pipes during heat fusion.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of a hot melt device for plastic processing.

[0017] Figure 2 This is a side view of the bushing assembly.

[0018] Figure 3 This is a front view of the bushing assembly and the isolation assembly.

[0019] Figure 4 This is a structural diagram of the base sleeve and the sliding sleeve.

[0020] Figure 5 This is an exploded view of the sleeve assembly and the hot melt assembly.

[0021] The attached diagram lists the components represented by each number as follows: 1-Sleeve assembly, 101-Base sleeve, 101a-Vertical sliding sleeve, 101b-Air inlet pipe, 101c-Support foot, 102-Upper cover sleeve, 102a-Vertical sliding chamber, 102b-Air outlet pipe, 2-Hot melt assembly, 201-Plate sleeve, 201a-Plate sleeve end cap, 201a-1-Upper pull handle, 202-Heating wire, 3-Isolation assembly, 301-Rubber sleeve, 302-Sliding sleeve, 302a-Sliding key. Detailed Implementation

[0022] The technical solutions of the present 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 the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figures 1 to 4 This utility model is a hot-melt device for plastic processing, including a sleeve assembly 1, a hot-melt assembly 2, and four sets of isolation assemblies 3. The sleeve assembly 1 includes a base sleeve 101 and an upper cover sleeve 102. By fitting the base sleeve 101 and the upper cover sleeve 102 in the sleeve assembly 1 onto the outside of two pipes that need to be spliced, the hot-melt assembly 2 is set in the vertical sliding chamber 102a of the upper cover sleeve 102. One end of the two sleeves is respectively attached to the two sides of the hot-melt assembly 2, and the hot-melt assembly 2 heats and melts the port of the sleeve. Then, the hot-melt assembly 2 is pulled out from the vertical sliding chamber 102a, and the two sleeves are slid to splice and fix the port of the two pipes. By setting the isolation assemblies 3 in the sleeves and fitting the isolation assemblies 3 onto the outside of the two sleeves, the port of the two sleeves is isolated from the outside air, preventing oxygen in the air from oxidizing the pipes during hot melting.

[0024] Specifically, both the base sleeve 101 and the upper cover sleeve 102 are horizontally placed semi-circular tubular structures. The upper cover sleeve 102 is fastened to the upper end of the base sleeve 101. A vertical sliding chamber 102a is fixed in the middle section of the upper cover sleeve 102. A vertical sliding sleeve 101a is fixed in the middle section of the base sleeve 101. The vertical sliding chamber 102a is connected to the vertical sliding sleeve 101a. The hot melt component 2 is vertically slidably fitted inside the vertical sliding chamber 102a. An isolation component 3 is horizontally slidably fitted inside the tubular sleeves on both sides of the vertical sliding sleeve 101a in the base sleeve 101. An isolation component 3 is horizontally slidably fitted inside the tubular sleeves on both sides of the vertical sliding chamber 102a in the upper cover sleeve 102.

[0025] Furthermore, the upper cover 102 is fixed with air outlet pipes 102b on the outer sides of the tube walls on both sides of the vertical sliding chamber 102a, and the base sleeve 101 is fixed with air inlet pipes 101b on the outer sides of the tube walls on both sides of the vertical sliding sleeve 101a. When the sleeve is heat-fused, nitrogen is injected into the air inlet pipes 101b so that the nitrogen fills the sleeve assembly 1 and the air in the sleeve assembly 1 is discharged from the air outlet pipes 102b.

[0026] Furthermore, a set of support feet 101c are fixed to the lower outer wall of the base sleeve 101.

[0027] Furthermore, the isolation component 3 includes a rubber sleeve 301 and a sliding sleeve 302. Both the rubber sleeve 301 and the sliding sleeve 302 are semi-cylindrical structures. The rubber sleeve 301 is fixedly fitted inside the sliding sleeve 302. The sliding sleeves 302 of the two isolation components 3 in the base sleeve 101 are slidably fitted onto the inner wall of the tube of the base sleeve 101. The sliding sleeves 302 of the two isolation components 3 in the upper cover sleeve 102 are slidably fitted onto the inner wall of the tube of the upper cover sleeve 102. The rubber sleeve 301 is attached to the outer wall of the tube sleeve to prevent external air from entering the sleeve assembly 1.

[0028] Furthermore, the inner walls of the base sleeve 101 and the upper cover sleeve 102 are both fixedly provided with sliding grooves. The length direction of the sliding grooves in the base sleeve 101 and the upper cover sleeve 102 is parallel to the length direction of the base sleeve 101 and the upper cover sleeve 102. The outer wall of the sliding sleeve 302 is fixedly provided with sliding keys 302a. The sliding keys 302a on the outer wall of each sliding sleeve 302 are respectively slidably sleeved in each sliding groove.

[0029] The operation process in this embodiment is as follows: Four sets of isolation components 3 are fixedly sleeved on the outside of the two pipes respectively. The isolation components 3 are sleeved inside the sleeve assembly 1. Nitrogen is injected into the air inlet pipe 101b to fill the sleeve assembly 1 with nitrogen. The air in the sleeve assembly 1 is discharged from the air outlet pipe 102b. Then the heat fusion component 2 is slid down so that the lower end of the heat fusion component 2 is inserted into the vertical sliding sleeve 101a. One end of the two pipe sleeves is attached to the two sides of the heat fusion component 2 respectively. The heat fusion component 2 heats and melts the port of the pipe sleeve. Then the heat fusion component 2 is pulled out from the vertical sliding chamber 102a. The two pipe sleeves are slid to splice and fix the port of the two pipes.

[0030] Example 2: Please refer to Figures 1 to 5 Based on Example 1, the hot melt assembly 2 includes a plate sleeve 201 and a heating wire 202. By energizing the heating wire 202, the heating wire 202 is heated and heats the plate sleeve 201, thereby heating the pipe ports on both sides of the plate sleeve 201.

[0031] Specifically, the plate sleeve 201 is a plate-shaped structure with an open top and a hollow interior. The heating wire 202 is fixedly installed inside the plate sleeve 201, and the plate sleeve 201 is vertically slidably sleeved inside the vertical slide chamber 102a.

[0032] Furthermore, the open end of the plate sleeve 201 is provided with a plate sleeve end cover 201a, and the two ends of the heating wire 202 are fixedly connected to the plate surface of the plate sleeve end cover 201a. The upper end of the plate sleeve end cover 201a is fixedly provided with an upper pull handle 201a-1.

[0033] The operation process in this embodiment is as follows: Insert the plate sleeve 201 into the vertical sliding sleeve 102a, energize the heating wire 202 to heat up the heating wire 202 and heat the plate sleeve 201, thereby heating the pipe ports on both sides of the plate sleeve 201, thereby melting the ports of the two pipe sleeves.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A hot melt device for plastic processing comprising a sleeve assembly (1), a hot melt assembly (2) and four sets of insulation assembly (3), characterized in that: The sleeve assembly (1) includes a base sleeve (101) and an upper cover sleeve (102). Both the base sleeve (101) and the upper cover sleeve (102) are horizontally placed semi-circular tubular structures. The upper cover sleeve (102) is fastened to the upper end of the base sleeve (101). A vertical sliding chamber (102a) is fixed in the middle section of the upper cover sleeve (102). A vertical sliding sleeve (101a) is fixed in the middle section of the base sleeve (101). The vertical sliding chamber (102a) is connected to the vertical sliding sleeve (101a). The hot melt assembly (2) is vertically slidably sleeved in the vertical sliding chamber (102a). An isolation assembly (3) is horizontally slidably sleeved in the sleeves on both sides of the vertical sliding sleeve (101a) of the base sleeve (101). An isolation assembly (3) is horizontally slidably sleeved in the sleeves on both sides of the vertical sliding chamber (102a) of the upper cover sleeve (102).

2. The hot melt device for plastic processing according to claim 1, characterized in that: The upper cover (102) has an air outlet pipe (102b) fixed on the outer side of the two sides of the vertical sliding chamber (102a), and the base sleeve (101) has an air inlet pipe (101b) fixed on the outer side of the two sides of the vertical sliding sleeve (101a).

3. The hot melt apparatus for plastic processing according to claim 2, wherein: A set of support feet (101c) is fixed on the lower outer wall of the base sleeve (101).

4. The hot melt device for plastic processing according to claim 3, characterized in that: The isolation component (3) includes a rubber sleeve (301) and a sliding sleeve (302). Both the rubber sleeve (301) and the sliding sleeve (302) are semi-cylindrical structures. The rubber sleeve (301) is fixedly fitted inside the sliding sleeve (302). The sliding sleeve (302) of the two isolation components (3) in the base sleeve (101) is slidably fitted on the inner wall of the tube of the base sleeve (101). The sliding sleeve (302) of the two isolation components (3) in the upper cover sleeve (102) is slidably fitted on the inner wall of the tube of the upper cover sleeve (102).

5. The hot melt apparatus for plastic processing according to claim 4, wherein: The inner walls of the base sleeve (101) and the upper cover sleeve (102) are both provided with sliding grooves. The length direction of the sliding grooves in the base sleeve (101) and the upper cover sleeve (102) is parallel to the length direction of the base sleeve (101) and the upper cover sleeve (102). The outer wall of the sliding sleeve (302) is provided with a sliding key (302a). The sliding key (302a) on the outer wall of each sliding sleeve (302) is slidably sleeved in each sliding groove.

6. The hot melt apparatus for plastic processing according to claim 1, wherein: The hot melt assembly (2) includes a plate sleeve (201) and a heating wire (202). The plate sleeve (201) is a plate-shaped structure with an open top and a hollow interior. The heating wire (202) is fixedly installed inside the plate sleeve (201). The plate sleeve (201) is vertically slidably sleeved in the vertical sliding chamber (102a).

7. The hot melt apparatus for plastic processing according to claim 6, wherein: The plate sleeve (201) has an end cap (201a) at its open end. The two ends of the heating wire (202) are fixedly connected to the plate surface of the end cap (201a). The upper end of the end cap (201a) is fixedly provided with an upper pull handle (201a-1).