Die heating device

Abstract

The utility model relates to the technical field of mold heating, and discloses a mold heating device which comprises an outer shell, an electric-hydraulic push rod is connected to the middle of the upper end of the outer shell through a bolt, an inner shell is arranged in the outer shell, a heat insulation layer is arranged on the inner wall of the outer shell, and a heat preservation layer is arranged on the inner wall of the inner shell. Supporting blocks are arranged at the lower end and on the two sides of the inner shell, the supporting blocks are located between the inner wall of the heat insulation layer and the outer wall of the inner shell, a lower heating plate is arranged in the middle of the inner bottom end of the inner shell, an upper heating plate is arranged above the lower heating plate, and heating pipes are embedded in the lower heating plate and the upper heating plate. By arranging the electric-hydraulic push rod, the upper heating plate and the lower heating plate, the upper heating plate can be matched with the lower heating plate to clamp a mold, meanwhile, heating pipes in the upper heating plate and the lower heating plate work to generate high temperature, the upper heating plate and the lower heating plate can heat the mold at the same time, and the heating efficiency can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of mold heating technology, specifically a mold heating device. Background Technology

[0002] Molds are various shapes and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to create shaped objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly achieves the shaping of the object by changing the physical state of the material being molded. Some plastic or glass products require heating of their molds during processing.

[0003] Existing mold heating devices sometimes place the mold in a furnace equipped with heating tubes for heating. However, there is a gap between the heating tubes and the mold, resulting in low heating efficiency and difficulty in utilizing the excess heat generated. Therefore, a mold heating device is proposed here. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a mold heating device, which effectively solves the problems existing in the existing mold heating devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold heating device, comprising a shell, an electro-hydraulic actuator connected to the upper middle part of the shell by bolts, an inner shell disposed inside the shell, a heat insulation layer disposed on the inner wall of the shell, a heat preservation layer disposed on the inner wall of the inner shell, support blocks disposed at the lower end and on both sides of the inner shell, the support blocks being located between the inner wall of the heat insulation layer and the outer wall of the inner shell, a lower heating plate disposed at the middle of the bottom end of the inner shell, an upper heating plate disposed above the lower heating plate, heating tubes embedded inside both the lower heating plate and the upper heating plate, the output end of the electro-hydraulic actuator penetrating through the shell and the inner shell, a sliding sleeve disposed between the output end of the electro-hydraulic actuator and the shell, a water inlet pipe disposed at the upper end of the shell located on one side of the electro-hydraulic actuator, a water outlet pipe disposed at the lower part of one side wall of the shell, and a valve disposed at the upper end of the water outlet pipe.

[0006] Preferably, the front of the outer casing is provided with a door, one end of which is connected to the side wall of the outer casing by a hinge. After the door is opened, the mold to be heated can be placed into the device.

[0007] Preferably, the heat insulation layer is bonded to the inner wall of the outer shell, the heat preservation layer is bonded to the inner wall of the inner shell, the support block is welded to the outer wall of the inner shell, and the support block is bonded to the inner wall of the heat insulation layer. The heat preservation layer can improve the heat preservation performance inside the device, and the heat insulation layer can prevent heat inside the device from being conducted to the outer shell, preventing the outer shell from burning the staff, and can also reduce heat loss inside the device.

[0008] Preferably, the lower heating plate is bolted to the bottom of the inner shell, and the upper middle part of the upper heating plate is bolted to the output end of the electro-hydraulic actuator. When the electro-hydraulic actuator is working, it can drive the upper heating plate to rise and fall. The mold to be heated is placed on the lower heating plate, and the upper heating plate can cooperate with the lower heating plate to clamp the mold. At the same time, the heating tubes in the upper heating plate and the lower heating plate generate high temperatures, so that the upper heating plate and the lower heating plate heat the mold at the same time, which can improve the heating efficiency.

[0009] Preferably, the output end of the electro-hydraulic actuator is slidably connected to the inner wall of the sliding sleeve, the outer shell of the sliding sleeve is welded to the inner shell, the sliding sleeve is embedded in the outer shell and the inner shell, and the sliding sleeve is made of copper material, which has good wear resistance.

[0010] Preferably, both the inlet pipe and the outlet pipe are connected to the outer wall of the outer shell via flanges, and the valve is connected to the outlet pipe via threads. The inlet pipe can be connected to an external water supply line, so that the external water supply can send room temperature water into the cavity between the outer shell and the inner shell. When the valve is opened, the water in the device can be discharged through the outlet pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this mold heating device, by setting up an electro-hydraulic push rod, an upper heating plate, and a lower heating plate, the upper heating plate can cooperate with the lower heating plate to clamp the mold. At the same time, the heating tubes inside the upper and lower heating plates generate high temperatures, allowing the upper and lower heating plates to heat the mold simultaneously, which can improve heating efficiency. The structural design of the outer shell, inner shell, insulation layer, heat insulation layer, water inlet pipe, and water outlet pipe gives the device good heat preservation performance and also allows the device to utilize the excess heat generated during heating, making it very environmentally friendly and energy-saving. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a front sectional view of the outer shell of this utility model;

[0016] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0017] In the diagram: 1. Outer shell; 2. Electro-hydraulic actuator; 3. Inner shell; 4. Heat insulation layer; 5. Thermal insulation layer; 6. Support block; 7. Lower heating plate; 8. Upper heating plate; 9. Heating tube; 10. Sliding sleeve; 11. Water inlet pipe; 12. Water outlet pipe; 13. Valve; 14. Box door. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] In this embodiment, by Figure 1-3 The present invention includes an outer shell 1, an electro-hydraulic actuator 2 connected to the upper middle part of the outer shell 1 by bolts, an inner shell 3 inside the outer shell 1, a heat insulation layer 4 on the inner wall of the outer shell 1, a heat insulation layer 5 on the inner wall of the inner shell 3, support blocks 6 on the lower end and both sides of the inner shell 3, the support blocks 6 being located between the inner wall of the heat insulation layer 4 and the outer wall of the inner shell 3, a lower heating plate 7 in the middle of the bottom of the inner shell 3, an upper heating plate 8 above the lower heating plate 7, and heating tubes 9 embedded inside both the lower heating plate 7 and the upper heating plate 8, the output end of the electro-hydraulic actuator 2 penetrating the outer shell 1 and the inner shell 3, a sliding sleeve 10 between the output end of the electro-hydraulic actuator 2 and the outer shell 1, a water inlet pipe 11 on the upper end of the outer shell 1 located on one side of the electro-hydraulic actuator 2, a water outlet pipe 12 on the lower part of one side wall of the outer shell 1, and a valve 13 on the upper end of the water outlet pipe 12.

[0020] The outer shell 1 has a door 14 on its front side. One end of the door 14 is connected to the side wall of the outer shell 1 by a hinge. After the door 14 is opened, the mold to be heated can be placed into the device. The heat insulation layer 4 is bonded to the inner wall of the outer shell 1, the heat insulation layer 5 is bonded to the inner wall of the inner shell 3, the support block 6 is welded to the outer wall of the inner shell 3, and the support block 6 is bonded to the inner wall of the heat insulation layer 4. The heat insulation layer 5 can improve the heat insulation performance inside the device, and the heat insulation layer 4 can prevent the heat inside the device from being conducted to the outer shell 1, preventing the outer shell 1 from burning the staff, and also reducing the heat loss inside the device.

[0021] The lower heating plate 7 is bolted to the bottom of the inner shell 3, and the upper middle part of the upper heating plate 8 is bolted to the output end of the electro-hydraulic push rod 2. When working, the electro-hydraulic push rod 2 can drive the upper heating plate 8 to rise and fall. The mold to be heated is placed on the lower heating plate 7, and the upper heating plate 8 can cooperate with the lower heating plate 7 to clamp the mold. At the same time, the heating tubes 9 in the upper heating plate 8 and the lower heating plate 7 work to generate high temperature, so that the upper heating plate 8 and the lower heating plate 7 heat the mold at the same time, which can improve the heating efficiency.

[0022] The output end of the electro-hydraulic actuator 2 is slidably connected to the inner wall of the sliding sleeve 10. The outer shell 1 and the inner shell 3 of the outer shell 10 are welded together. The sliding sleeve 10 is embedded in the outer shell 1 and the inner shell 3. The sliding sleeve 10 is made of copper material and has good wear resistance.

[0023] The inlet pipe 11 and the outlet pipe 12 are connected to the outer wall of the outer shell 1 by flanges. The valve 13 is connected to the outlet pipe 12 by threads. The inlet pipe 11 can be connected to an external water supply line. In this way, the external water supply can send room temperature water into the cavity between the outer shell 1 and the inner shell 3. After the valve 13 is opened, the water in the device can be discharged through the outlet pipe 12.

[0024] Working principle: The device uses an external power supply and is operated by an external control device. Heating tube 9 is a prior art technology, with a built-in temperature sensing module that allows the heating temperature to be controlled by the external control device. When using the device, first open the door 14, place the mold to be heated into the device, and then operate the electro-hydraulic actuator 2 to lower the upper heating plate 8, which, together with the lower heating plate 7, clamps the mold. Then close the door 14. The heating tube 9 inside the upper and lower heating plates 8 and 7 generates high temperatures, causing the upper and lower heating plates 8 and 7 to simultaneously heat the mold. The water inlet pipe 11 is connected to an external water supply line. The external water supply can deliver room temperature water into the cavity between the outer shell 1 and the inner shell 3. Excess heat generated by heating the mold inside the device will gradually diffuse into the cavity between the outer shell 1 and the inner shell 3, heating the water inside. After the valve 13 is opened, the water inside the device can be discharged through the outlet pipe 12 for production and daily use. After the device has finished heating the mold, the valve 13 can also be opened to allow the external water supply pipeline to continuously supply water to the device through the inlet pipe 11. This allows the device to cool down quickly. The water used for cooling and heat exchange is discharged through the outlet pipe 12 for production and daily use, which is very environmentally friendly.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mould heating device comprising a housing (1), characterised in that: The outer shell (1) upper end middle part is connected with electro-hydraulic push rod (2) through bolt, the outer shell (1) is provided with inner shell (3), the outer shell (1) inner wall is provided with heat insulation layer (4), the inner shell (3) inner wall is provided with heat preservation layer (5), the inner shell (3) lower end and both sides are provided with support block (6), the support block (6) is between the heat insulation layer (4) inner wall and the inner shell (3) outer wall, the inner shell (3) inner bottom middle part is provided with lower heating plate (7), the lower heating plate (7) is provided with upper heating plate (8) above, the lower heating plate (7) and the upper heating plate (8) are both embedded with heating tube (9), the output end of electro-hydraulic push rod (2) penetrates the outer shell (1) and the inner shell (3), the output end of electro-hydraulic push rod (2) and the outer shell (1) are provided with sliding sleeve (10), the outer shell (1) upper end on the side of electro-hydraulic push rod (2) is provided with water inlet pipe (11), the outer shell (1) side wall lower part is provided with water outlet pipe (12), the water outlet pipe (12) upper end is provided with valve (13).

2. A mold heating device according to claim 1, characterized in that: The front of the outer shell (1) is provided with a box door (14), one end of the box door (14) is connected with the side wall of the outer shell (1) through a hinge.

3. A mold heating device according to claim 1, wherein: The heat insulation layer (4) is glued with the inner wall of the outer shell (1), the heat preservation layer (5) is glued with the inner wall of the inner shell (3), the support block (6) is welded with the outer wall of the inner shell (3), and the support block (6) is glued with the inner wall of the heat insulation layer (4).

4. A mold heating device according to claim 1, characterized in that: The lower heating plate (7) is connected with the inner bottom end of the inner shell (3) through a bolt, and the upper end middle part of the upper heating plate (8) is connected with the output end of the electro-hydraulic push rod (2) through a bolt.

5. A mold heating apparatus as defined in claim 1, wherein: The output end of the electro-hydraulic push rod (2) is slidably connected with the inner wall of the sliding sleeve (10), the outer shell (1) and the inner shell (3) are welded around the sliding sleeve (10), and the sliding sleeve (10) is embedded in the outer shell (1) and the inner shell (3).

6. A mold heating apparatus as defined in claim 1, wherein: The water inlet pipe (11) and the water outlet pipe (12) are connected with the outer wall of the outer shell (1) through flanges, and the valve (13) is connected with the water outlet pipe (12) through threads.

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