Large rotational molding barrel connecting pipe flange hot melting device

Abstract

The utility model provides a large rotational molding barrel connecting pipe flange hot melting device which comprises a support, a conical connecting pipe heating end and a conical connecting pipe hole heating end, and the conical connecting pipe heating end and the conical connecting pipe hole heating end are coaxially arranged at the two ends of the support. The heating end of the conical connecting pipe is a cylinder with one open end, a stepped hole is formed in the cylinder, the end, away from the support, of the stepped hole is a heating section, the inner wall of the heating section is matched with the outer wall of the conical connecting pipe, a heating coil is arranged on the outer wall of the heating section, and the end, close to the support, of the stepped hole is a containing section. The inner diameter of the accommodating section is greater than that of the adjacent heating section; the outer wall of the conical pipe connecting hole heating end is matched with the inner wall of the conical pipe connecting hole, and a heating coil is arranged on the inner wall of the conical pipe connecting hole heating end. The hot melting device can heat the conical connecting pipe hole of the rotational molding barrel and the conical connecting pipe of the connecting flange at the same time so as to be used for connecting the connecting pipe of the rotational molding barrel and the connecting flange.

Description

Technical Field

[0001] The utility model relates to a large-scale rotational molding barrel preparation technology, in particular to a large-scale rotational molding barrel pipe flange hot-melting device. Background Art

[0002] Large roto-molded barrels are the inevitable product of the rapid development of the vanadium liquid flow energy storage industry in recent years. Most of them have a capacity of 10m 3 The liquid stored in it needs to be constantly converted with external devices, so it is inseparable from the connecting flange for conveying liquid. This connecting flange is different from the commonly used standard flange. It is a one-piece flange specially designed to ensure that the connecting flange and the barrel are completely integrated. In order to ensure the quality of hot melt, it must be seamless and bubble-free. The entire surface must be fused. This requires that the material of the rotomolding barrel and the connecting flange must be consistent, usually polyethylene. When the cone part of the connecting flange fits the end joint surface with the connecting hole of the rotomolding barrel before hot melting, the former should be 2-2.5mm larger than the latter in diameter.

[0003] In order to connect the connecting flange to the pipe of the barrel body, the connecting flange and the pipe of the barrel body need to be heated, and a special hot-melt tool suitable for the hot-melt integrated flange of the rotational molding barrel is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to propose a large roto-molding barrel pipe flange hot melter to solve the problem of connecting the connecting flange to the roto-molding barrel pipe during large roto-molding preparation. The hot melter can heat the tapered pipe hole of the roto-molding barrel and the tapered pipe of the connecting flange at the same time to connect the roto-molding barrel pipe and the connecting flange.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a large-scale rotational molding barrel pipe flange hot melter, comprising a bracket, a tapered pipe heating end and a tapered pipe hole heating end, wherein the tapered pipe heating end and the tapered pipe hole heating end are coaxially arranged at both ends of the bracket;

[0006] The heating end of the tapered pipe is a cylinder with an open end, a stepped hole is arranged inside the cylinder, the end of the stepped hole away from the bracket is a heating section, the inner wall of the heating section matches the outer wall of the tapered pipe, the outer wall of the heating section is provided with a heating coil, the end of the stepped hole close to the bracket is a receiving section, and the inner diameter of the receiving section is larger than the inner diameter of the adjacent heating section;

[0007] The tapered pipe hole heating end, the outer wall of the tapered pipe hole heating end matches the inner wall of the tapered pipe hole, and the inner wall of the tapered pipe hole heating end is provided with a heating coil.

[0008] Furthermore, a handle is provided in the middle of the bracket.

[0009] Furthermore, the inner diameter of the accommodating section is 10-30 mm larger than the inner diameter of the adjacent heating section. The provision of the accommodating section can avoid the hot melt from being burned out with grooves, because the depth of the tapered pipe of the connecting flange inserted into the heating end of the tapered pipe is not absolute, and all the hot melt surfaces are soft after heating, and there is a possibility that the depth exceeds the expected depth. The provision of the accommodating section can accommodate the excess part; on the other hand, it can accommodate part of the melted material.

[0010] Furthermore, the tapered pipe heating end and the tapered pipe hole heating end are coaxially arranged at two ends of the bracket by screws.

[0011] Furthermore, the tapered pipe heating end and the tapered pipe hole heating end are both made of metal copper or metal aluminum to improve heat conduction efficiency.

[0012] Furthermore, the heating end of the conical pipe is provided with an external heat-insulating protective cover, which can not only provide protection against electric shock, but also prevent heat loss, thereby improving heating efficiency.

[0013] Furthermore, the heating coil power of the tapered pipe heating end is smaller than the heating coil power of the tapered pipe hole heating end 3 .

[0014] The working principle of the utility model of the hot melter for the pipe flange of a large roto-molding barrel is as follows: when in use, the heating end of the tapered pipe hole is inserted into the tapered pipe hole (polyethylene material) of the roto-molding barrel, and the tapered pipe (polyethylene material) of the connecting flange is inserted into the heating end of the tapered pipe; turn on the power, the hot melter heats the tapered pipe hole of the roto-molding barrel and the tapered pipe of the connecting flange (integrated flange) at the same time, when the surface of the heated body (the tapered pipe hole of the roto-molding barrel and the tapered pipe of the connecting flange) melts or softens to a depth of 3-5mm, the hot melter is separated from the heated body, and the tapered pipe of the connecting flange is immediately inserted into the tapered pipe hole of the roto-molding barrel, and it is ensured that the tapered pipe of the connecting flange is inserted into the tapered pipe hole of the roto-molding barrel, and at least 0.5-1mm of radial interference is ensured, and the flange hot melt pressing device is used to continuously press for 15 minutes, and finally the flange hot melt pressing device is removed to complete the hot melting work of a pipe flange of the large roto-molding barrel.

[0015] Compared with the prior art, the utility model of large-scale rotational molding barrel flange hot melter has the following advantages:

[0016] 1) To ensure the quality of hot melt, the conical pipe hole of the rotational molding barrel and the conical pipe of the connecting flange must be seamless and bubble-free, and the entire surface must be fused. First of all, the materials of the rotational molding barrel and the connecting flange must be consistent; at the same time, the melting state during hot melt heating must be consistent, that is, the heating temperatures of the two heating bodies must be controlled separately, and the heating power of the parts with large heat capacity should be larger. The heating power for the heating of the DN100 connecting flange is 2.6kw, and the heating power for the parts with small heat capacity is smaller. The heating power for the heating of the flange hole of the rotational molding barrel is 2kw. By using the large rotational molding barrel pipe flange hot melter of the utility model for simultaneous heating, the two heated bodies can reach the same hot melt state at the same time.

[0017] 2) The inner diameter of the containing section is 10-30 mm larger than the inner diameter of the adjacent heating section. The setting of the containing section can avoid the hot melt from being burned out, and can accommodate part of the melted material.

[0018] 3) The tapered pipe heating end and the tapered pipe hole heating end are both made of metal copper or metal aluminum to improve heat conduction efficiency.

[0019] 4) The heating end of the conical pipe is provided with an insulating protective cover, which can not only provide protection against electric shock, but also prevent heat loss and improve heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the front view of the flange heat-melting machine for the large roto-molded barrel;

[0021] Figure 2 This is a cross-sectional view of a large roto-molded barrel flange heat-melting machine;

[0022] Figure 3 It is a schematic diagram of the heating end of the tapered pipe;

[0023] Figure 4 for Figure 3 AA direction schematic diagram;

[0024] Figure 5 It is a schematic diagram of the heating end of the tapered pipe hole;

[0025] Figure 6 for Figure 5 AA direction schematic diagram. DETAILED DESCRIPTION

[0026] The present invention is further described below with reference to the embodiments:

[0027] Example 1

[0028] This embodiment discloses a large-scale rotational molding barrel flange heat-melting device, and its structure is as follows: Figure 1-6As shown, it includes a bracket 1, a conical pipe heating end 2 and a conical pipe hole heating end 3, and a handle 4 is arranged in the middle of the bracket. The conical pipe heating end 2 and the conical pipe hole heating end 3 are coaxially fixed to the two ends of the bracket by screws; the conical pipe heating end 2 and the conical pipe hole heating end 3 are both made of metal copper or metal aluminum to improve the heat conduction efficiency.

[0029] The conical pipe heating end 2 is a cylinder with an open end, and a stepped hole is arranged inside the cylinder. The end of the stepped hole away from the bracket is a heating section, and the inner wall of the heating section matches the outer wall of the conical pipe. The outer wall of the heating section is provided with a heating coil 5. The end of the stepped hole close to the bracket is a accommodating section, and the inner diameter of the accommodating section is larger than the inner diameter of the adjacent heating section; specifically, the inner diameter of the accommodating section is 20 mm larger than the inner diameter of the adjacent heating section. The setting of the accommodating section can avoid the hot melt from being burned out with grooves on the one hand, and can accommodate partially melted materials on the other hand. The conical pipe heating end 2 is provided with an external heat-insulating protective cover, which can not only provide protection against electric shock, but also prevent heat loss and improve heating efficiency.

[0030] The tapered pipe hole heating end 3, the outer wall of the tapered pipe hole heating end 3 matches the inner wall of the tapered pipe hole, and the inner wall of the tapered pipe hole heating end 3 is provided with a heating coil.

[0031] The heating coil power of the tapered pipe heating end 2 is smaller than the heating coil power of the tapered pipe hole heating end 3 .

[0032] The working principle of the hot melter for the pipe flange of a large roto-molding barrel in this embodiment is as follows: when in use, insert the tapered pipe hole heating end 3 into the tapered pipe hole of the roto-molding barrel, and insert the tapered pipe of the connecting flange deeply into the tapered pipe heating end 2; turn on the power, and the heating coil 5 of the hot melter heats the tapered pipe hole of the roto-molding barrel and the tapered pipe of the connecting flange (integrated flange) at the same time. When the surface of the heated body (the tapered pipe hole of the roto-molding barrel and the tapered pipe of the connecting flange) melts or softens to a depth of 3-5mm, the hot melter is separated from the heated body, and the tapered pipe of the connecting flange is immediately inserted into the tapered pipe hole of the roto-molding barrel, and it is ensured that the tapered pipe of the connecting flange is inserted into the tapered pipe hole of the roto-molding barrel, and at least 0.5-1mm of radial interference is ensured, and the flange hot melt pressing device is used to continuously press for 15 minutes, and finally the flange hot melt pressing device is removed to complete the hot melt work of a pipe flange of a large roto-molding barrel.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A large-scale rotational molding barrel flange hot melter, characterized in that: It comprises a bracket (1), a tapered pipe heating end (2) and a tapered pipe hole heating end (3), wherein the tapered pipe heating end (2) and the tapered pipe hole heating end (3) are coaxially arranged at both ends of the bracket (1); The conical pipe heating end (2) is a cylinder with an open end, a stepped hole is provided inside the cylinder, the end of the stepped hole away from the bracket is a heating section, the inner wall of the heating section matches the outer wall of the conical pipe, the outer wall of the heating section is provided with a heating coil (5), the end of the stepped hole close to the bracket is a receiving section, and the inner diameter of the receiving section is larger than the inner diameter of the adjacent heating section; The tapered pipe hole heating end (3) has an outer wall that matches the inner wall of the tapered pipe hole, and a heating coil is provided on the inner wall of the tapered pipe hole heating end (3).

2. According to the large-scale rotational molding barrel flange hot melter of claim 1, it is characterized in that: A handle (4) is provided in the middle of the bracket.

3. According to the large-scale rotational molding barrel flange hot melter of claim 1, it is characterized in that: The inner diameter of the accommodating section is 10-30 mm larger than the inner diameter of the adjacent heating section.

4. According to the large-scale rotational molding barrel flange hot melter of claim 1, it is characterized in that: The tapered pipe heating end (2) and the tapered pipe hole heating end (3) are coaxially arranged at two ends of the bracket (1) via screws.

5. According to the large-scale rotational molding barrel flange hot melter of claim 1, it is characterized in that: The tapered pipe heating end (2) and the tapered pipe hole heating end (3) are both made of metal copper or metal aluminum.

6. The large-scale rotational molding barrel flange hot melter according to claim 1 is characterized in that: The tapered pipe heating end (2) is externally provided with a heat-insulating protective cover.

7. The large-scale rotational molding barrel flange hot melter according to claim 1 is characterized in that: The power of the heating coil at the tapered pipe heating end (2) is smaller than the power of the heating coil at the tapered pipe hole heating end (3).

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