Experimental device for butt joint process of plastic pipes at low temperature
By designing an experimental device that includes a freezer and a hot melt butt welding machine, the problem of temperature control and welding of plastic pipe connections under low temperature conditions was solved, and the low temperature welding process was optimized in a small area.
Patent Information
- Application Number
- CN202422430542.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-10-09
AI Technical Summary
Existing technologies for connecting plastic pipes at low temperatures suffer from problems such as excessively rapid temperature drop of the hot plate, poor welding temperature, and cracking of the pipe end face. Furthermore, building a dedicated freezer is costly and unsafe.
Design an experimental device that includes a freezer and a hot-melt butt welding machine. The freezer has an adjustable temperature freezing zone and a hot-melt butt welding operation zone. Different temperature zones are formed by the insertion of partitions. Experiments are conducted in conjunction with the hot-melt butt welding machine.
By simulating different temperature environments in a smaller area and at a lower cost, the cold brittleness and weld strength of plastic pipes were verified, and the low-temperature welding process was optimized, avoiding high costs and complex operations.
Smart Images
Figure CN223456500U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of plastic pipe connection, specifically relates to a plastic pipe butt joint process experimental device under low temperature. BACKGROUND
[0002] The plastic pipe hot melt butt joint process has been relatively mature, but under low temperature condition construction, still exist such as ironing board temperature drops too fast exceeds the allowed range, the pipe two end surfaces leave ironing board time too long and lead to the melting temperature is low and the effect is not good etc., especially some plastic pipes still exist low temperature brittleness problem, the end surface is broken when milling the two end surfaces with milling cutter before butt joint, and the pipe is damaged and cannot be welded, therefore the adaptability and optimization of low temperature hot melt butt joint process need an experimental device, and it is too high to build a freezer room for placing welding equipment, personnel also need to take good insulation measures, and the steps are complex and not safe, and currently no relevant patent solves the above problems. UTILITY MODEL CONTENTS
[0003] In view of the above problems existing in the prior art, the utility model aims at providing a plastic pipe butt joint process experimental device under low temperature, which can simulate different temperature environments and realize butt joint process research of plastic pipes under low cost and small area.
[0004] The utility model provides the following technical scheme: a plastic pipe butt joint process experimental device under low temperature, including freezing cabinet and hot melt butt joint welding machine arranged in the freezing cabinet, the freezing cabinet includes cabinet body, one side of the cabinet body is open structure, the cabinet body is inserted with baffle, the baffle is inserted in the middle part of the cabinet body so that the inside of the freezing cabinet forms freezing area and hot melt butt joint operation area or is inserted in the open side of the cabinet body so that the freezing cabinet forms a complete test area with adjustable temperature, and the hot melt butt joint welding machine is arranged in the hot melt butt joint operation area.
[0005] Further, the middle part and the open side of the cabinet body are respectively provided with middle insertion slot and outer insertion slot for facilitating the insertion of the baffle, and the middle insertion slot and the outer insertion slot are vertically arranged.
[0006] Further, the baffle is made of heat-insulating and transparent material.
[0007] Further, the top of the cabinet body is provided with top cover plate one and top cover plate two above the freezing area and the hot melt butt joint operation area, and the top cover plate one and the top cover plate two are rotatably arranged on the cabinet body.
[0008] Further, the top cover plate one, the baffle inserted in the middle part of the cabinet body and the cabinet body form the freezing area, and the freezing area is connected with the refrigeration equipment.
[0009] Further, the top cover plate two, the baffle inserted in the middle part of the cabinet body and the cabinet body form the hot melt butt joint operation area. Further, the top cover plate two, the baffle inserted in the middle part of the cabinet body and the cabinet body form the hot melt butt joint operation area.
[0010] Further, the top cover plate one, the top cover plate two, the partition plate connected to the opening side of the cabinet body and the cabinet body form a complete test area.
[0011] Further, the hot melt butt welding machine comprises a base, a set of sliding shafts and two pipe clamps, the set of sliding shafts are fixed on the base, the two pipe clamps are oppositely arranged on the set of sliding shafts, and a hot melting plate or a milling cutter is further arranged between the two pipe clamps on the set of sliding shafts.
[0012] By adopting the above-mentioned technology, compared with the prior art, the beneficial effects of the utility model are as follows:
[0013] The experimental device can verify whether the cold brittleness of the plastic pipeline under different temperatures affects the end face milling flatness, find the allowable minimum butt joint construction temperature, adjust the hot plate temperature under different temperatures, verify whether the hot plate temperature can always remain within the permissible range during the heat absorption of the pipelines at two ends to the hot plate, test the conversion time of the butt joint of the pipelines at two ends after leaving the hot plate, verify whether the butt joint strength is sufficient, and find the shortest cooling time after welding under different environmental temperatures by measuring the cooling time-cooling temperature relationship after butt joint. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;
[0015] Figure 2 It is a top view structure schematic view of the utility model;
[0016] Figure 3 It is a front view structure schematic view of the utility model;
[0017] Figure 4 It is Figure 1 It is an enlarged structure schematic view of position A. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples of the specification. It should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the utility model.
[0019] On the contrary, the utility model covers any substitution, modification, equivalent method and scheme made on the essence and scope of the utility model defined by the claims. Further, in order to make the public have a better understanding of the utility model, some specific details are described in detail in the following detailed description of the utility model. The utility model can also be completely understood without the description of these details for those skilled in the art.
[0020] Please refer toFigures 1-4 A plastic pipe butt joint process experimental device at low temperature, comprising a freezer and a hot melt butt joint welding machine 4.
[0021] The hot melt butt joint welding machine 4 is of a conventional structure, comprising a base 401, a sliding shaft 402, a pipe outer clamp 403, a handheld ironing plate, a handheld milling machine, a cylinder or a lead screw shaft, etc.
[0022] The pipe outer clamp 403 is used for clamping and fixing the pipe, and the clamping of the corresponding pipe specification is realized by replacing the bearing shaft. The handheld ironing plate can be set to a temperature, heated to the set temperature by external power supply, and placed and fixed on the sliding shaft. The handheld milling cutter rotates the blade by external power supply, mills the end faces of the two pipes, and can be placed and fixed on the sliding shaft 402. The cylinder or the lead screw shaft moves the pipe outer clamp 403 by manual control, drives the pipe to move left and right along the sliding shaft 402, and approaches or leaves the ironing plate and the handheld milling cutter.
[0023] The freezer comprises a cabinet 1, a top cover plate one 5, a top cover plate two 6 and a partition plate 7.
[0024] One side of the cabinet 1 is of an open structure, and the middle part and the open side of the cabinet 1 are respectively provided with an intermediate slot 101 and an outer slot 102, which are matched in size with the partition plate 7. When the partition plate is installed in the intermediate slot 101, it locally forms a closed freezing area 2 together with the top cover plate one 5 and the cabinet 1, and the remaining area is a hot melt butt joint operation area 3, in which the hot melt butt joint welding machine 4 is fixed. When the partition plate 7 is installed in the outer slot 102, it forms a complete test area with temperature control together with the top cover plate one 5, the top cover plate two 6 and all parts of the cabinet 1. The freezing area 2 has a refrigeration function and is used for storing a plurality of test pipes and cooling the pipes to a set temperature. One side of the hot melt butt joint operation area 3 is open, which is convenient for welding process test and research. After the pipes are cooled to the set temperature for a period of time, the pipes are taken out from the freezing area 2, clamped on the pipe outer clamp 403, and the end faces are milled by the handheld milling cutter to check whether the end faces are cracked or damaged. Then the milling debris is cleaned, the handheld milling cutter is taken out, and the handheld ironing plate is heated outside the cabinet at this time to avoid increasing the power consumption of the freezer.
[0025] The top cover plate one 5 corresponds to the freezing area 2, and the top cover plate two 6 corresponds to the welding operation area 3. The two cover plates can be rotated to the opposite side as needed, which is convenient for taking out the sample pipes and welding operation. Both cover plates are made of heat insulation material to reduce energy consumption and temperature fluctuation.
[0026] After the milling is completed and the temperature of the ironing plate reaches the set temperature, the milling cutter is taken out and replaced with the ironing plate, and then the partition plate 7 is taken out from the intermediate slot 102 and installed on the outer slot 101, which cooperates with the two top cover plates to reduce the temperature of the original hot melt butt joint operation area 3 to the set temperature. After the temperature of the entire test area reaches the set temperature, the welding operation is started. The partition plate is preferably made of transparent heat insulation material, which is convenient for observing the change of welding parameters and effect during operation.
[0027] The utility model discloses a freezing cabinet body single -faced opening, top cover plate can rotate, the change regulation freezing area scope of baffle 7 installation position, both facilitate clamping, mill flat, observation, also avoided the problem of increasing energy consumption of freezing cabinet inside long -time one side refrigeration one side heating. Avoided the two -end pipeline's secondary clamping when because pipeline concentricity, straightness error, bring two wall thickness to the big amount of deviation, the problem of two end surfaces uneven after milling. Simultaneously under the condition of smaller investment and floor space, realized the control of welding low -temperature environment temperature, and the optimization of plastic pipe low -temperature welding process is convenient for research.
[0028] The above only is the preferred embodiment of the utility model and does not limit the utility model, and any modification, equivalent replacement and improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A device for testing a butt joining process of plastic pipes at low temperature, characterized in that, The application relates to a refrigeration cabinet and a hot-melt butt welding machine (4) arranged in the refrigeration cabinet, wherein the refrigeration cabinet comprises a cabinet body (1), one side of the cabinet body (1) is of an open structure, a partition plate (7) is inserted into the cabinet body (1), the partition plate (7) is inserted into the middle part of the cabinet body (1) so that a refrigeration area (2) and a hot-melt butt welding operation area (3) are formed in the refrigeration cabinet, or the partition plate (7) is inserted into the open side of the cabinet body (1) so that a complete test area with adjustable temperature is formed in the refrigeration cabinet; the hot-melt butt welding machine (4) is arranged in the hot-melt butt welding operation area (3).
2. The experimental device for butt joint of plastic pipes at low temperature according to claim 1, characterized in that, The middle part and the open side of the cabinet body (1) are respectively provided with an intermediate insertion slot (101) and an outer insertion slot (102) for facilitating the insertion of the partition plate (7), and the intermediate insertion slot (101) and the outer insertion slot (102) are vertically arranged.
3. The experimental device for butt joint of plastic pipes at low temperature according to claim 1, characterized in that, The partition plate (7) is made of heat-insulating and transparent material.
4. The plastic pipe butt joint process experimental device at low temperature according to claim 1, characterized in that, The top of the cabinet body (1) is provided with a top cover plate one (5) and a top cover plate two (6) above the refrigeration area (2) and the hot-melt butt welding operation area (3), and the top cover plate one (5) and the top cover plate two (6) are rotatably arranged on the cabinet body (1).
5. The experimental apparatus for butt joining of plastic pipes at low temperature according to claim 4, characterized in that, The top cover plate one (5), the partition plate (7) inserted into the middle part of the cabinet body (1) and the cabinet body (1) form the refrigeration area (2).
6. The plastic pipe butt joint process experimental device at low temperature according to claim 4, characterized in that, The top cover plate two (6), the partition plate (7) inserted into the middle part of the cabinet body (1) and the cabinet body (1) form the hot-melt butt welding operation area (3).
7. The experimental apparatus for butt joining of plastic pipes at low temperature according to claim 4, wherein The top cover plate one (5), the top cover plate two (6) and the partition plate (7) inserted into the open side of the cabinet body (1) and the cabinet body (1) form the complete test area.
8. The experimental apparatus for butt joining of plastic pipes at low temperature according to claim 1, wherein The hot-melt butt welding machine (4) comprises a base (401), a group of sliding shafts (402) and two pipe clamps (403), the group of sliding shafts (402) are fixed on the base (401), the two pipe clamps (403) are oppositely arranged on the group of sliding shafts (402), and a hot-melt ironing plate or a milling cutter is arranged between the two pipe clamps (403) on the group of sliding shafts (402).