CN215144050U - Thermoforming apparatus - Google Patents

Abstract

The utility model provides a thermoforming device, which comprises a thermoforming chamber, wherein a circulating fan is arranged in the thermoforming chamber; a fan motor is arranged outside the thermoforming chamber, a through hole is formed in the wall of the thermoforming chamber, and a rotating shaft of the circulating fan penetrates through the through hole to be connected with the fan motor; and a heat insulation sealing device is arranged between the hole and the rotating shaft. The utility model has the characteristics of low cost, efficient thermoforming equipment.

Description

Thermoforming apparatus

Technical Field

The utility model relates to a hot former, especially have the metal material hot forming processing equipment of hot forming chamber.

Background

In the existing metal material thermoforming equipment provided with the thermoforming chamber, heat is transferred to a part to be processed after heat is generated by heating equipment (for example, electric heating equipment arranged in a lower platform) arranged in the thermoforming chamber, so that the part to be processed is heated to a desired temperature value. The heat transfer media relied upon for the above heat transfer process primarily include metal components such as the lower platen that are in direct contact and the gaseous media within the thermoforming chamber. Due to the limited heat transfer rate of the heat transfer medium, the temperature of the part to be processed away from the heating device often increases at a different rate than the temperature of the part to be processed adjacent to the heating device, which has a series of adverse effects. Therefore, it is necessary to take measures to reduce the difference in the temperature increase rate between different regions of the member to be processed.

SUMMERY OF THE UTILITY MODEL

In order to reduce the temperature rise rate difference between different regions of the member to be processed. The utility model provides a hot forming equipment.

The technical scheme of the utility model as follows:

a thermoforming apparatus including a thermoforming chamber in which a circulation fan is disposed; a fan motor is arranged outside the thermoforming chamber, a through hole is formed in the wall of the thermoforming chamber, and a rotating shaft of the circulating fan penetrates through the through hole to be connected with the fan motor; and a heat insulation sealing device is arranged between the hole and the rotating shaft.

Optionally, the circulation fan comprises a centrifugal fan.

Optionally, the circulation fan is provided on a side wall of the thermoforming chamber.

Alternatively, the circulation fans are provided on the opposite side walls, respectively.

Optionally, the opposing circulation fans are positioned offset.

The technical effects of the utility model:

the utility model discloses a thermoforming equipment is provided with circulating fan at the indoor thermoforming. The circulation fan can drive the gas in the thermoforming chamber to circulate, so that the ambient temperature in the thermoforming chamber can be quickly consistent in a working state, and the temperature rise speed difference among different areas of the part to be processed is reduced. In addition, if the component to be processed needs to be cooled, the thermoforming chamber door can be opened to drive the circulating fan, so that the low-temperature air outside the thermoforming chamber is accelerated to cool the component to be processed, and the working efficiency is improved. In addition, the fan motor is arranged outside the thermoforming chamber, so that the adverse effect of high temperature in the thermoforming chamber on the fan motor can be avoided. In conclusion, the foregoing technical solutions achieve the purpose of the present invention.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

The designations in the figures illustrate the following:

101. a thermoforming chamber; 102. a circulation fan; 103. a rotating shaft; 104. a fan motor; 105. a fan motor; 106. a rotating shaft; 107. a circulation fan; 108. a part to be machined; 109. and (4) heating the equipment.

Detailed Description

The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1 shows a thermoforming apparatus of the invention. The thermoforming apparatus includes a thermoforming chamber 101, and a member to be processed 108 is heated at a high temperature in the thermoforming chamber 101. A heating device 109 is provided on the inner wall of the thermoforming chamber 101. In fig. 1, the heating devices 109 in the upper and lower directions transfer heat to the member to be processed 108 by contact with the member to be processed, and heat the gas in the inner space of the thermoforming chamber 101, and then transfer heat to the member to be processed 108 by the heated gas. In addition, in the present embodiment, a heating apparatus 109 is also provided on the side wall of the thermoforming chamber 101. The heating device 109 on the side wall mainly heats the gas in the inner space of the thermoforming chamber 101, and then the gas heated up is used to transfer heat to the part 108 to be processed. Because the heating devices 109 in the upper and lower directions transfer heat through contact with the part to be processed 108, the part of the part to be processed 108 close to the heating devices 109 in the upper and lower directions heats up by heat exchange in advance, while the heat exchange in the region of the middle part of the part to be processed 108 far from the heating devices 109 in the upper and lower directions lags behind, and the heating speed is slow. The heating device 109 on the side wall also causes the central region of the part 108 to be processed, which is remote from the heating device 109, to be heated more slowly by transferring heat to the gas in the thermoforming chamber 101 and then to the part 108 to be processed through the heated gas. This can lead to a series of undesirable effects in different areas of the part 108 to be machined due to uneven heating.

As described above, there is also a phenomenon in which the member to be processed 108 is indirectly heated by heating the gas in the thermoforming chamber 101, and if this heating process can be accelerated, the aforementioned problem of uneven heating of the member to be processed 108 can be effectively solved. A circulation fan 102 is provided on a side wall of the thermoforming chamber 101. When the temperature is raised and heated, the circulating fan 102 is started, so that the gas in the thermoforming chamber 101 can flow in a rapid circulating manner, the heating equipment 109 accelerates the heat exchange with the gas in the thermoforming chamber 101, and because the area of the middle part of the part to be processed 108, which is far away from the heating equipment 109 in the upper and lower directions, is in the gas, the process of heat exchange between the area of the part to be processed 108 and the gas is improved, and the temperature rise speed difference between different areas of the part to be processed 108 is reduced.

It can also be seen from fig. 1 that the rotating shaft 103 of the circulation fan 102 is connected to the fan motor 104 through a hole in the wall of the thermoforming chamber 101. A heat-insulating sealing device (not shown) is provided between the hole and the rotating shaft 103. The heat-insulating sealing means prevents on the one hand the heat inside the thermoforming chamber 101 from escaping through the gap between the hole and the rotating shaft 103 and on the other hand the hot air flow formed by the dissipated heat raises the temperature of the fan motor 104, making it unable to be in a good working condition.

Another circulation fan 107 is provided on the other side wall of the thermoforming chamber 101 opposite to the side wall on which the circulation fan 102 is located. As with the circulation fan 102, the circulation fan 107 is also provided with a corresponding rotary shaft 106 and a fan motor 105. The circulation fan 107 is disposed in the same manner as the circulation fan 102 except for the position where the circulation fan is disposed; the connection between the rotating shaft 106 and the fan motor 105 is the same as the connection between the circulating fan 102 and the rotating shaft 103 and the fan motor 104, and the description thereof is omitted.

The circulation fan 107 is further arranged on the basis of the already arranged circulation fan 102, so that the speed of gas circulation heat exchange in the thermoforming chamber 101 can be increased, and the working efficiency can be improved. In the present embodiment, centrifugal fans are used as the circulation fans 102 and 107, and the circulation efficiency of the gas in the thermoforming chamber 101 can be improved more effectively.

In addition, in order to further improve the circulation efficiency of the gas in the thermoforming chamber 101, the positions of the circulation fan 102 and the circulation fan 107 may be staggered, for example, the positions of the circulation fan 102 and the circulation fan 107 have a height difference in the gravity direction, so that the rotation shaft of the circulation fan 102 and the rotation shaft of the circulation fan 107 are prevented from being on the same line, the circulation fan 102 and the circulation fan 107 can form the effect of driving the gas to circulate in a relay manner, and the efficiency is improved. Of course, in other embodiments, the circulation fans may be disposed at other orientations within the thermoforming chamber 101, and the number and relative positions of the circulation fans may be different from the present embodiment.

In addition the utility model discloses a thermoforming equipment also can exert beneficial effect when needs carry out rapid cooling to the part of processing. When the machined part needs to be rapidly cooled, the thermoforming chamber door is opened, the circulating fan is started, the exchange of low-temperature air outside the thermoforming chamber and high-temperature gas in the thermoforming chamber is accelerated, the machined part is rapidly cooled, and the working efficiency is improved.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and the present invention can also be modified in materials and structures, or replaced by technical equivalents. Therefore, all structural equivalents which may be made by applying the present invention to the specification and drawings, or by applying them directly or indirectly to other related technical fields, are intended to be encompassed by the present invention.

Claims (5)

1. Thermoforming apparatus comprising a thermoforming chamber, characterized in that: a circulation fan is arranged in the thermoforming chamber; a fan motor is arranged outside the thermoforming chamber, a through hole is formed in the wall of the thermoforming chamber, and a rotating shaft of the circulating fan penetrates through the through hole to be connected with the fan motor; and a heat insulation sealing device is arranged between the hole and the rotating shaft.

2. The thermoforming apparatus of claim 1, wherein: the circulation fan includes a centrifugal fan.

3. The thermoforming apparatus of claim 1, wherein: the circulation fan is provided on a side wall of the thermoforming chamber.

4. The thermoforming apparatus of claim 3, wherein: the circulation fans are respectively disposed on the opposite side walls.

5. The thermoforming apparatus of claim 4, wherein: the opposite circulating fans are arranged in a staggered mode.

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