Automatic cooling device for injection molding machine

Abstract

This case involves an automatic cooling device for an injection molding machine, including a sol cylinder, a plurality of nano-infrared electric heating coils for cooling the sol cylinder are sleeved on the outside of the sol cylinder, a window that can be opened / closed relative to the nano-infrared electric heating coil is provided on the nano-infrared electric heating coil, a driving device that can drive the window to automatically open and close is provided on the nano-infrared electric heating coil, and an air pipe assembly for dissipating heat from the inside of the nano-infrared electric heating coil is provided on the nano-infrared electric heating coil. In this case, without changing the original structure of other components, only a driving device and a nano-infrared electric heating coil with a window need to be added to achieve rapid and automatic cooling of the nano-infrared electric heating coil and the melt cylinder. The air pipe assembly is extended into the interior of the nano-infrared electric heating coil to dissipate heat, so that the nano-infrared electric heating coil and the melt cylinder can achieve rapid and automatic cooling. This structure has good cooling effect, saves economic costs, has high cost performance, simple installation structure, and is easy to implement.

Description

Technical Field

[0001] The utility model relates to the field of injection molding machinery and equipment, in particular to an automatic cooling device for an injection molding machine. Background Art

[0002] The injection molding machine is a special plastic molding machine. Its working principle is to use the thermoplasticity of plastic. After heating and melting, it is subjected to high pressure to make it flow quickly into the mold cavity. After a period of pressure maintenance and cooling, it becomes a plastic product of various shapes. The injection molding machine is usually composed of an injection molding system, a mold clamping system, a hydraulic system, an electrical control system, a heating and cooling system, a lubrication system, a safety protection and detection system, etc. At present, when producing specific rubber materials, the temperature of the melt barrel of the injection molding machine is too slow to cool down, resulting in aging of the rubber materials. In particular, if the transparent PC material cannot be cooled quickly when the injection molding machine is stopped, the material will produce black spots and aging in the melt barrel. The temperature of the melt barrel is particularly high, and it is difficult to cool the melt barrel by general manual operation. Therefore, it is necessary to provide an automatic cooling device for the injection molding machine.

[0003] The Chinese utility model patent with the announcement number CN202742649U and the patent name of the automatic constant temperature and rapid cooling device for the material tube of the injection molding machine discloses an automatic constant temperature and rapid cooling device for the material tube of the injection molding machine, including the material tube of the injection molding machine (i.e., the melt tube) and an electric heater surrounding the tube wall. The outer wall of the material tube is also surrounded by a cooling ring, which is connected to a cooling water pipe. This solution uses the cooling water pipe to input water into the cooling ring, thereby taking away the excess heat on the material tube and achieving a cooling effect.

[0004] In the above-mentioned prior art, the cooling is achieved by installing a cooling ring on the material pipe and then inputting water into the cooling ring through a cooling water pipe. It is also necessary to connect to an external water source and input cooling water. Its structure is complicated and the installation is troublesome. In addition, when the equipment is running, the heating temperature of the melt cylinder is particularly high, which will quickly increase the temperature of the cooling water and quickly evaporate the input cooling water, resulting in poor cooling effect or gradual inability to cool down.

[0005] Therefore, it is necessary to provide an automatic cooling device which can automatically cool down the temperature and has a good cooling effect. Utility Model Content

[0006] The utility model overcomes the shortcomings of the above-mentioned technology and provides an automatic temperature reduction device for an injection molding machine.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An automatic cooling device for an injection molding machine comprises a sol cylinder, a plurality of nano-infrared electric heating rings for cooling the sol cylinder are sleeved on the outer side of the sol cylinder, a window that can be opened / closed relative to the nano-infrared electric heating ring is provided on the nano-infrared electric heating ring, a driving device that can drive the window to automatically open and close is provided on the nano-infrared electric heating ring, and an air pipe assembly for dissipating heat inside the nano-infrared electric heating ring is provided on the nano-infrared electric heating ring.

[0009] Furthermore, the window is rotatably connected to the nano infrared electric heating ring via a hinge.

[0010] Furthermore, the driving device comprises a rotating cylinder fixedly connected to the outer side wall of the nano-infrared electric heating ring, and one end of the rotating cylinder is connected to the window to drive the window to open / close relative to the nano-infrared electric heating ring.

[0011] Furthermore, the rotary cylinder includes a rotating shaft, a first connecting member is fixedly connected to the rotating shaft, the other end of the first connecting member is connected to a connecting shaft, a second connecting member is fixedly arranged on the window body, and the second connecting member begins to have a waist-shaped hole for the connecting shaft to penetrate and move therein.

[0012] Furthermore, the nano infrared electric heating ring includes an internal hollow interlayer, an annular inner ring is provided in the interlayer, and the air pipe assembly is two symmetrically arranged on the nano infrared electric heating ring. The air pipe assembly includes an air duct extending into the interlayer and attached to the inner wall of the annular inner ring, and the other end of the air duct extends out of the outer wall of the nano infrared electric heating ring.

[0013] Furthermore, the air duct includes a U-shaped tube extending into the interlayer and tightly fitting on the inner wall of the annular inner ring, and an air receiving tube extending out of the outer wall of the nano infrared electric heating coil, and the U-shaped tube is provided with a plurality of air outlet holes.

[0014] Furthermore, the nano-infrared electric heating ring is formed by two semicircular nano-infrared electric heating rings being tightly enclosed, and the window is opened on any one of the semicircular nano-infrared electric heating rings.

[0015] Furthermore, the semicircular nano-infrared electric heating ring is provided with a third connecting piece, and there are at least two third connecting pieces. The third connecting piece is provided with a screw hole, and a bolt is installed in the screw hole.

[0016] Furthermore, the sol cylinder is provided with a plurality of through holes.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. In this case, a window that can be opened / closed relative to the nano-infrared electric heating ring is provided on the nano-infrared electric heating ring, and a driving device is set to drive the window to open and close automatically, so as to realize the automatic opening of the window to discharge the hot air in the nano-infrared electric heating ring. Without changing the original structure of other components, only the driving device and the nano-infrared electric heating ring with a window need to be added to realize the rapid automatic cooling of the nano-infrared electric heating ring and the melt tube. This structure has good cooling effect, saves economic cost, has high cost performance, simple installation structure and is easy to implement.

[0019] 2. By making simple improvements to the nano-infrared electric heating ring, an air pipe assembly is added to the structure, and the air pipe assembly is extended into the interior of the nano-infrared electric heating ring for heat dissipation, so that the nano-infrared electric heating ring and the melt tube can achieve rapid and automatic cooling. This structure is simple to install and easy to implement, and further improves the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the main view of the overall structure when the window is closed.

[0021] Figure 2 This case Figure 1 View from the center AA direction.

[0022] Figure 3 This is one of the overall structural diagrams when the form of this case is open.

[0023] Figure 4 This is the second schematic diagram of the overall structure when the form is open.

[0024] Figure 5 This case Figure 4 Section view along the BB direction.

[0025] Figure 6 This is a schematic diagram of the disassembled nano-infrared electric heating coil and driving device in this case.

[0026] Figure 7 This is a schematic diagram of the structural decomposition of the nano-infrared electric heating ring in this case.

[0027] Figure 8 It is a structural schematic diagram of the air duct in this case.

[0028] Fig. 9 It is a structural schematic diagram of the sol tube in this case. DETAILED DESCRIPTION

[0029] The following examples further illustrate the features of the present invention and other related features to facilitate understanding by those skilled in the art:

[0030] like Figures 1 to 9As shown, this case discloses an automatic cooling device for an injection molding machine, which includes a sol tube 1. Several nano-infrared electric heating coils 2 for cooling the sol tube 1 are sleeved on the outside of the sol tube 1. Using the nano-infrared electric heating coil 2 to sleeve on the outside of the sol tube 1 to heat the sol tube 1 is a conventional technology in the field, and no further description is given here. It should be noted that in this case, this case has been improved on the conventional nano-infrared electric heating coil 2, and a window 21 that can be opened / closed relative to the nano-infrared electric heating coil 2 is provided on the nano-infrared electric heating coil 2, and then a driving device that can drive the window 21 to open and close automatically is provided on the nano-infrared electric heating coil 2. By setting the driving device to drive the window 21 to open and close automatically, the window 21 is automatically opened to discharge the hot air in the nano-infrared electric heating coil 2. Without changing the original structure of other components, it is only necessary to add a driving device and a nano-infrared electric heating coil 2 with a window 21 to achieve rapid automatic cooling of the nano-infrared electric heating coil 2 and the melt tube 1. The structure has good cooling effect, saves economic cost, has high cost performance, has simple installation structure and is easy to implement.

[0031] On the basis of the above, this case further improves the conventional nano infrared electric heating ring 2, and sets an air pipe assembly on the nano infrared electric heating ring 2 for dissipating heat inside the nano infrared electric heating ring 2. By making simple improvements to the nano infrared electric heating ring, adding an air pipe assembly to the structure, and extending the air pipe assembly into the nano infrared electric heating ring for heat dissipation, the nano infrared electric heating ring and the melt tube can achieve rapid and automatic cooling. This structure is simple to install and easy to implement, and further improves the cooling effect.

[0032] like Figures 1 to 9 As shown, the window 21 is rotatably connected to the nano infrared electric heating ring 2 through a hinge 22. This connection structure has good stability, is easy to install and maintain, and is convenient for the driving device to drive the window 21 to open and close.

[0033] like Figures 1 to 7 As shown, the driving device includes a rotating cylinder 3 fixedly connected to the outer wall of the nano infrared electric heating ring 2, and one end of the rotating cylinder 3 is connected to the window 21 to drive the window 21 to open / close relative to the nano infrared electric heating ring 2. In specific implementation, the rotating cylinder is connected to an external air pump and controlled by an electric air valve. This is a conventional connection structure in the field and will not be described in detail here. In this case, by setting a rotating cylinder 3, the opening / closing of the window 21 is automatically driven, and the structure is simple to install and easy to implement.

[0034] Specifically, see Figure 2 , Figure 5 , Figure 6In this case, the conventional rotary cylinder 3 is improved in terms of structural adaptability so that it can be better applied in this case. The rotary cylinder 3 in this case includes a rotating shaft 31, which can rotate under the drive of the rotary cylinder 3. A first connecting member 32 is fixedly connected to the rotating shaft 31, so that the first connecting member 32 can rotate along with the rotation of the rotating shaft 31. The fixed connection is to enable the first connecting member 32 to stably rotate along with the rotation of the rotating shaft 31. A connecting shaft 33 is connected to the other end of the first connecting member 32, and the connecting shaft 33 is fixedly connected to the first connecting member 32, so that the connecting shaft 33 can stably rotate along with the rotation of the first connecting member 32. Under the premise of achieving this effect, the fixed connection between the rotating shaft 31 and the first connecting member 32, and the fixed connection between the connecting shaft 33 and the first connecting member 32 can be bolted, riveted, welded, or the like. A second connecting member 211 is fixedly arranged on the window 21. Preferably, in order to enable the window 21 to be stably opened / closed under the drive of the rotating cylinder 3, the second connecting member 211 is fixedly arranged on the window 21 by welding. The second connecting member 211 begins to have a waist-shaped hole 2111 for the connecting shaft 33 to penetrate and move therein. The length of the waist-shaped hole 2111 determines the maximum path for the connecting shaft 33 to move therein, thereby determining the opening angle of the window 21 relative to the nano-infrared electric heating ring 2. Preferably, the case uses a rotating cylinder 3 with a rotation angle of ninety degrees, that is, the opening angle of the window 21 relative to the nano-infrared electric heating ring 2 is ninety degrees. In specific implementation, the structure of the waist-shaped hole 2111 is adaptively designed according to the rotating cylinder 3 of ninety degrees. It should be noted that other rotating cylinders 3 with rotation angles can also be selected, such as a rotation angle of thirty degrees, sixty degrees, one hundred and twenty degrees, etc., as long as it is convenient for the window 21 to open / close relative to the nano-infrared electric heating ring 2 and facilitate faster heat dissipation.

[0035] like Figure 2 , Figure 5 , Figure 7 As shown, the nano infrared electric heating ring 2 includes an inner hollow interlayer 22, an annular inner ring 23 is arranged in the interlayer 22, and two air pipe components are symmetrically arranged on the nano infrared electric heating ring 2. The air pipe component includes an air duct 4 extending into the interlayer 22 and attached to the inner wall of the annular inner ring 23, and the other end of the air duct 4 extends out of the outer wall of the nano infrared electric heating ring 2. In specific implementation, the annular inner ring 23 is a sheet that matches the shape of the nano infrared electric heating ring 2. The air duct 4 is connected to an external air pump to input compressed air from the air duct 4 into the nano infrared electric heating ring 2, thereby further accelerating heat dissipation and cooling, so that the nano infrared electric heating ring and the melt tube can achieve rapid and automatic cooling. This structure is simple to install and easy to implement, and further improves the cooling effect.

[0036] As mentioned above, specifically, continue to refer to Figure 2 , Figure 5 , Figure 7 The air duct 4 includes a U-shaped tube 41 extending into the interlayer 22 and tightly fitting on the inner wall of the annular inner ring 23, and an air connection tube 42 extending out of the outer wall of the nano infrared electric heating ring 2. The air connection tube 42 extends out of the nano infrared electric heating ring 2 for connecting to an external air pump, thereby inputting compressed air into the air duct 4, and finally outputting it from a plurality of air outlets 411 opened on the U-shaped tube 41 to the inside of the nano infrared electric heating ring 2, so as to quickly dissipate heat and cool the nano infrared electric heating ring 2. The U-shaped tube 41 is tightly fitted on the inner wall of the annular inner ring 23, so as to facilitate its stable connection with the nano infrared electric heating ring 2 and the annular inner ring 23. It should be noted that the plurality of air outlet holes 411 provided on the U-shaped tube 41 can be provided at any position on the U-shaped tube 41. Since the U-shaped tube 41 is closely attached to the inner wall of the annular inner ring 23, the present invention preferably provides the plurality of air outlet holes 411 at the position where the U-shaped tube 41 is not attached to the annular inner ring 23, so as to facilitate better air discharge and facilitate rapid heat dissipation and temperature reduction of the nano infrared electric heating ring 2. In specific implementation, a through hole for the air pipe 42 to pass through is provided on the outer wall of the nano infrared electric heating ring 2 for connecting an external air pump.

[0037] like Figure 6 , Figure 7 As shown, the nano-infrared electric heating ring 2 is formed by two semicircular nano-infrared electric heating rings 20 tightly enclosed, and the window 21 is opened on any semicircular nano-infrared electric heating ring 20.

[0038] like Figure 2 , Figure 7 As shown, the semicircular nano-infrared electric heating ring 20 is provided with a third connecting member 24, and there are at least two third connecting members 24. The third connecting member 24 is provided with a screw hole 241, and a bolt 242 is installed in the screw hole 241. The two semicircular nano-infrared electric heating rings 20 are hinged at one end and fastened and connected at the other end through the third connecting member 24 and the bolt 242. This structure is simple to operate and easy to install. When operated manually, the nano-infrared electric heating ring 2 can be installed / disassembled on the sol tube 1 more quickly and easily.

[0039] like Fig. 9 As shown, a plurality of through holes 11 are provided on the sol tube 1, which are conducive to discharging the hot air in the sol tube 1 and further improving the overall cooling effect of the present invention.

[0040] The working principle of this case is as follows:

[0041] During the production process of the injection molding machine, the nano-infrared electric heating ring 2 mounted on the molten rubber cylinder 1 continuously heats the material in the molten rubber cylinder 1 to process the material. When the injection molding machine stops production, the nano-infrared electric heating ring 2 stops heating, and the central control system of the injection molding machine transmits the injection molding machine's production stop signal to the central control console. At this time, the external air pump works, the electric air valve starts ventilation, drives the rotary cylinder 3 to rotate, and the rotating shaft 31 of the rotary cylinder 3 rotates, driving the waist-shaped hole 2111 of the connecting shaft 33 on the second connecting piece 211 to move, thereby driving the window 21 to rotate, and the window 21 opens relative to the nano-infrared electric heating ring 2. At the same time, the air pump connected to the air duct 4 starts working, and the compressed air is input into the air duct 4 through the air connecting pipe 42. Finally, it is output from the several air outlets 411 opened on the U-shaped tube 41 to the inside of the nano-infrared electric heating ring 2, so as to quickly dissipate heat and cool the nano-infrared electric heating ring 2.

[0042] As mentioned above, this case protects an automatic cooling device for an injection molding machine. All technical solutions that are the same or similar to this case should be deemed to fall within the scope of protection of this case.

Claims

1. An automatic cooling device for an injection molding machine, characterized in that: The invention comprises a sol tube (1), wherein a plurality of nano-infrared electric heating coils (2) for cooling the sol tube (1) are sleeved on the outer side of the sol tube (1), wherein a window (21) capable of opening / closing relative to the nano-infrared electric heating coil (2) is provided on the nano-infrared electric heating coil (2), wherein a driving device capable of driving the window (21) to automatically open and close is provided on the nano-infrared electric heating coil (2), and wherein an air pipe assembly for dissipating heat inside the nano-infrared electric heating coil (2) is provided on the nano-infrared electric heating coil (2).

2. The automatic cooling device for an injection molding machine according to claim 1, characterized in that: The window (21) is rotatably connected to the nano-infrared electric heating ring (2) via a hinge (211).

3. The automatic cooling device for an injection molding machine according to claim 1, characterized in that: The driving device comprises a rotary cylinder (3) fixedly connected to the outer wall of the nano-infrared electric heating ring (2), and one end of the rotary cylinder (3) is connected to the window (21) to drive the window (21) to open / close relative to the nano-infrared electric heating ring (2).

4. The automatic cooling device for an injection molding machine according to claim 3, characterized in that: The rotary cylinder (3) comprises a rotating shaft (31), a first connecting member (32) is fixedly connected to the rotating shaft (31), the other end of the first connecting member (32) is connected to a connecting shaft (33), a second connecting member (212) is fixedly arranged on the window body (21), and a waist-shaped hole (2121) is provided at the beginning of the second connecting member (212) for the connecting shaft (33) to penetrate and move therein.

5. The automatic cooling device for an injection molding machine according to claim 1, characterized in that: The nano infrared electric heating ring (2) comprises an internally hollow interlayer (22), an annular inner ring (23) is arranged in the interlayer (22), the air pipe assembly is two symmetrically arranged on the nano infrared electric heating ring (2), the air pipe assembly comprises an air duct (4) extending into the interlayer (22) and attached to the inner wall of the annular inner ring (23), and the other end of the air duct (4) extends out of the outer wall of the nano infrared electric heating ring (2).

6. The automatic cooling device for an injection molding machine according to claim 5, characterized in that: The air guide pipe (4) comprises a U-shaped pipe (41) extending into the interlayer (22) and tightly fitting on the inner wall of the annular inner ring (23), and an air connection pipe (42) extending out of the outer wall of the nano infrared electric heating coil (2), and a plurality of air outlet holes (411) are provided on the U-shaped pipe (41).

7. The automatic cooling device for an injection molding machine according to claim 1, characterized in that: The nano-infrared electric heating ring (2) is formed by two semi-circular nano-infrared electric heating rings (20) being tightly enclosed, and the window (21) is opened on any one of the semi-circular nano-infrared electric heating rings (20).

8. The automatic cooling device for an injection molding machine according to claim 7, characterized in that: The semicircular nano-infrared electric heating ring (20) is provided with a third connecting member (24), and there are at least two third connecting members (24). The third connecting member (24) is provided with a screw hole (241), and a bolt (242) is installed in the screw hole (241). One end of the two semicircular nano-infrared electric heating rings (20) is hinged, and the other end is fastened and connected by the third connecting member (24) and the bolt (242).

9. The automatic cooling device for an injection molding machine according to claim 1, characterized in that: The sol cylinder (1) is provided with a plurality of through holes (11).

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