Efficient cooling type plastic mold for household appliances

Abstract

The utility model relates to the technical field of plastic molds, in particular to an efficient cooling type plastic mold for household appliances. The mold comprises a main body frame and connecting frames fixedly connected with the two ends of the front face and the back face of the main body frame correspondingly, a lower mold is arranged in the main body frame, a discharging assembly is arranged on the inner wall of the lower mold and used for ejecting a product in the lower mold, and a cooling assembly is arranged on the front face of the lower mold and used for cooling the product in the lower mold. And the cooling assembly is used for cooling the product in the main body frame to form and cure the product. Heat in the lower die can be quickly absorbed to the surface through the cooling fins arranged on the surface of the lower die, cooling liquid circularly flowing in the annular pipe can continuously take away the heat on the surfaces of the cooling fins, accurate and efficient cooling is achieved, the cooling time of products in the die is greatly shortened, the production period is shortened, and the production efficiency is improved. The yield in unit time is increased, and the large market demand is met.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to a high-efficiency cooling plastic mold for household appliances. Background Art

[0002] With the advancement of science and technology and the improvement of people's living standards, the types and quantities of household appliances are increasing, and the requirements for their appearance and quality are becoming increasingly stringent. Plastic molds play a vital role in the manufacturing of household appliances.

[0003] Existing plastic molds for household appliances take a long time to cool down the product. The slow cooling speed will prolong the residence time of the plastic product in the mold, resulting in a longer production cycle and reduced output per unit time. This cannot meet the large market demand, resulting in low production efficiency, poor product quality, and increased costs. In view of this, we propose a high-efficiency cooling plastic mold for household appliances. Utility Model Content

[0004] The purpose of this utility model is to solve the above shortcomings and provide a household appliance high-efficiency cooling plastic mold;

[0005] To achieve the above-mentioned object, the present invention provides a household appliance high-efficiency cooling plastic mold, comprising a main frame, and connecting frames fixedly connected to the front and back ends of the main frame, respectively. A lower mold is provided inside the main frame, and a discharge assembly is provided on the inner wall of the lower mold. The discharge assembly is used to eject the product inside the lower mold. A cooling assembly is provided on the front of the lower mold. The cooling assembly is used to cool the product inside the main frame to form and solidify it, wherein:

[0006] The cooling assembly includes a plurality of cooling fins fixed on the front of the main frame. The cooling fins are divided into two groups and distributed at the front and back ends of the lower mold. An annular tube is fixedly connected to the surface of the cooling fin. A flowing coolant is provided inside the annular tube to continuously remove heat from the surface of the cooling fin.

[0007] As a further improvement of the present technical solution, the end of the annular tube is fixedly connected to a water pump, the end of the annular tube away from the water pump is fixedly connected to a cooling box, a pipe is fixedly connected between the cooling box and the water pump, and the water pump is fixedly connected to the inner cavity of the main frame.

[0008] As a further improvement of the present technical solution, the top of the lower mold contacts the upper mold, the top of the upper mold is provided with a feed port, and the lower surface of the upper mold slides in the inner cavity of the main frame.

[0009] As a further improvement of the present technical solution, two hydraulic devices are fixedly connected to the bottom of the upper mold, and the hydraulic devices are located in the inner cavity of the main frame.

[0010] As a further improvement of the present technical solution, the discharging assembly includes a top plate in contact with the inner wall of the main frame, the bottom of the top plate is fixedly connected to a push rod, the inner cavity of the push rod is slidably connected to a connecting rod, the surface of the connecting rod is threadedly connected to a connecting column, and the top of the connecting column is fixedly connected to the push rod.

[0011] As a further improvement of the present technical solution, two slides are fixedly connected to the surface of the connecting column, and the slides are adapted to slide in the empty grooves opened on the inner wall of the main frame.

[0012] As a further improvement of this technical solution, a transmission gear is fixedly connected to the bottom of the connecting rod, a gear is meshed on the outer edge of the transmission gear, a motor is fixedly connected to the bottom of the gear, the motor is fixedly connected to the inner cavity of the main frame, and the motor drives the motor shaft to drive the gear to rotate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this household appliance high-efficiency cooling plastic mold, the cooling fins arranged on the surface of the lower mold can quickly absorb the heat inside the lower mold to the surface, and the coolant circulating inside the annular tube can continuously take away the heat from the surface of the cooling fins, achieving precise and efficient cooling, greatly shortening the cooling time of the product in the mold, accelerating the production cycle, increasing the output per unit time, and meeting the large market demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the cooling fin of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the cooling assembly of the utility model;

[0018] Figure 4 This is a structural diagram of the discharge assembly of the utility model.

[0019] The meaning of each number in the figure is:

[0020] 1. Main frame; 11. Connecting frame; 12. Lower mold; 13. Upper mold; 130. Feed port; 14. Hydraulic device;

[0021] 2. Discharging assembly; 21. Motor; 22. Gear; 23. Transmission gear; 24. Connecting rod; 25. Push rod; 26. Top plate; 27. Connecting column; 270. Slide plate;

[0022] 3. Cooling assembly; 31. Cooling fins; 32. Ring pipe; 33. Water pump; 34. Cooling box. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example

[0025] See also Figure 1-Figure 4 As shown, this embodiment provides a household appliance high-efficiency cooling plastic mold, including a main frame 1, and a connecting frame 11 fixedly connected to the front and back ends of the main frame 1 respectively. The existing household appliance plastic mold takes a long time to cool the product. The slow cooling speed will prolong the residence time of the plastic product in the mold, resulting in an extension of the production cycle, a reduction in the output per unit time, and an inability to meet the large market demand. The problems of low production efficiency, poor product quality, and increased costs are solved. In view of this, we propose a household appliance high-efficiency cooling plastic mold. Therefore, a lower mold 12 is provided inside the main frame 1, and a discharge assembly 2 is provided on the inner wall of the lower mold 12. The discharge assembly 2 is used to eject the product inside the lower mold 12. A cooling assembly 3 is provided on the front of the lower mold 12. The cooling assembly 3 is used to cool the product inside the main frame 1 to make it molded and solidified. The product inside the lower mold 12 can be cooled by the cooling assembly 3, and the product can be ejected from the lower mold 12 by the discharge assembly 2 inside the lower mold 12. At this time, the product can be taken away.

[0026] The cooling assembly 3 includes a plurality of cooling fins 31 fixed on the front of the main frame 1. The cooling fins 31 are divided into two groups and distributed at the front and back ends of the lower mold 12. An annular tube 32 is fixedly connected to the surface of the cooling fin 31. A flowing coolant is provided inside the annular tube 32 to continuously take away the heat from the surface of the cooling fin 31. By setting the cooling fins 31, the temperature inside the lower mold 12 can be adsorbed. The annular tube 32 on the surface of the cooling fin 31 can take away the adsorbed heat through the coolant flowing inside the annular tube 32, thereby reducing the internal temperature of the lower mold 12 and cooling and solidifying the product.

[0027] The improvement of this embodiment is that:

[0028] Considering that existing household appliance plastic molds take a long time to cool the product, the slow cooling speed will prolong the residence time of the plastic product in the mold, resulting in an extension of the production cycle, a reduction in output per unit time, an inability to meet the large market demand, low production efficiency, poor product quality, increased costs and other problems. In view of this, we propose a household appliance high-efficiency cooling plastic mold, so that the cooling fins 31 set on the surface of the lower mold 12 can quickly absorb the heat inside the lower mold 12 to the surface, and the coolant circulating inside the annular tube 32 can continuously take away the heat from the surface of the cooling fins 31, achieving precise and efficient cooling, greatly shortening the cooling time of the product in the mold, speeding up the production cycle, increasing the output per unit time, and meeting the large market demand.

[0029] In order to allow the coolant inside the annular tube 32 to circulate, a water pump 33 is fixedly connected to the end of the annular tube 32, and a cooling box 34 is fixedly connected to the end of the annular tube 32 away from the water pump 33. A pipe is fixedly connected between the cooling box 34 and the water pump 33. The water pump 33 is fixedly connected to the inner cavity of the main frame 1. When the water pump 33 works, the annular tube 32 connected thereto transfers the coolant inside the cooling box 34 into the pipe connected to the cooling box 34 through the water pump 33, and then enters the cooling box 34, thereby realizing the circulation of the coolant inside the annular tube 32.

[0030] In order to allow the molten plastic to enter the lower mold 12, the top of the lower mold 12 is in contact with the upper mold 13. A feed port 130 is provided at the top of the upper mold 13. The lower surface of the upper mold 13 slides in the inner cavity of the main frame 1. The molten plastic can enter the upper mold 13 through the feed port 130 at the top of the upper mold 13 and thus reach the interior of the lower mold 12.

[0031] In order to enable the upper mold 13 to slide in the inner cavity of the main frame 1, two hydraulic devices 14 are fixedly connected to the bottom of the upper mold 13. The hydraulic devices 14 are located in the inner cavity of the main frame 1. The operation of the hydraulic devices 14 can drive the upper mold 13 to move upward.

[0032] In order to enable the discharge component 2 to demold the product inside the lower mold 12, the discharge component 2 includes a top plate 26 that contacts the inner wall of the main frame 1, and the bottom of the top plate 26 is fixedly connected to the push rod 25, and the inner cavity of the push rod 25 is slidably connected to the connecting rod 24, and the surface of the connecting rod 24 is threadedly connected to the connecting column 27, and the top of the connecting column 27 is fixedly connected to the push rod 25. The connecting column 27 can be moved upward by rotating the connecting rod 24, and the upward movement of the connecting column 27 can drive the push rod 25 to move upward. The upward movement of the push rod 25 can make the top plate 26 move upward to eject the product inside the lower mold 12.

[0033] In order to prevent the connecting column 27 from driving the top plate 26 to rotate when it is threadedly connected to the connecting rod 24 and rotates, two slides 270 are fixedly connected to the surface of the connecting column 27. The slides 270 are adapted to slide in the empty grooves opened on the inner wall of the main frame 1. The rotation of the connecting rod 24 can drive the connecting column 27 to rotate. Since the slides 270 on the surface of the connecting column 27 slide on the inner wall of the main frame 1 and cannot rotate, they will drive the connecting column 27 to move upward when the connecting rod 24 rotates.

[0034] In order to enable the connecting rod 24 to rotate and move the connecting column 27 upward, it is necessary to provide power to the connecting rod 24. Therefore, a transmission gear 23 is fixedly connected to the bottom of the connecting rod 24, and a gear 22 is meshed on the outer edge of the transmission gear 23. The bottom of the gear 22 is fixedly connected to a motor 21. The motor 21 is fixedly connected to the inner cavity of the main frame 1. The motor 21 drives the motor shaft to drive the gear 22 to rotate. The gear 22 is rotated by the operation of the motor 21. The mutual engagement of the gear 22 and the transmission gear 23 can drive the connecting rod 24 to rotate. The rotation of the connecting rod 24 can make the connecting column 27 move up and down on the surface of the connecting rod 24.

[0035] When the utility model is used, the melted plastic is poured into the feed port 130. The plastic passing through the feed port 130 enters the upper mold 13 and the lower mold 12. At this time, the water pump 33 is started so that the annular tube 32 can absorb the coolant inside the cooling box 34, and the coolant flows back from the water pump 33 to the cooling box 34 to realize circulation. The heat inside the lower mold 12 can be absorbed by the cooling fins 31, and the coolant circulating inside the annular tube 32 can take away its heat from the cooling fins 31. , the temperature inside the lower mold 12 is lowered, so that the plastic solidifies. The upper mold 13 is driven upward by the operation of the hydraulic device 14. At this time, the solidified product inside the lower mold 12 will separate from the upper mold 13. The motor 21 drives the gear 22 to rotate, and the gear 22 and the transmission gear 23 are engaged with each other to rotate the connecting rod 24. At this time, the connecting column 27 will move upward. The upward movement of the connecting column 27 can make the top plate 26 move upward, separating the product inside the lower mold 12 from the lower mold 12, and the product can be taken out.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A household appliance high-efficiency cooling plastic mold, comprising a main frame (1), and connecting frames (11) fixedly connected to both ends of the front and back sides of the main frame (1), characterized in that: A lower mold (12) is provided inside the main frame (1), and a discharge assembly (2) is provided on the inner wall of the lower mold (12), and the discharge assembly (2) is used to eject the product inside the lower mold (12). A cooling assembly (3) is provided on the front of the lower mold (12), and the cooling assembly (3) is used to cool the product inside the main frame (1) to shape and solidify it, wherein: The cooling assembly (3) includes a plurality of cooling fins (31) fixed on the front of the main frame (1), and the plurality of cooling fins (31) are distributed in two groups at the front and back ends of the lower mold (12). The surface of the cooling fins (31) is fixedly connected with an annular tube (32), and the inside of the annular tube (32) is provided with a flowing coolant for continuously removing heat from the surface of the cooling fins (31).

2. The household appliance high-efficiency cooling plastic mold according to claim 1, characterized in that: The end of the annular tube (32) is fixedly connected to a water pump (33), the end of the annular tube (32) away from the water pump (33) is fixedly connected to a cooling box (34), a pipeline is fixedly connected between the cooling box (34) and the water pump (33), and the water pump (33) is fixedly connected to the inner cavity of the main frame (1).

3. The household appliance high-efficiency cooling plastic mold according to claim 1, characterized in that: The top of the lower mold (12) contacts the upper mold (13), the top of the upper mold (13) is provided with a feed port (130), and the lower surface of the upper mold (13) slides in the inner cavity of the main frame (1).

4. The household appliance high-efficiency cooling plastic mold according to claim 3, characterized in that: Two hydraulic devices (14) are fixedly connected to the bottom of the upper mold (13), and the hydraulic devices (14) are located in the inner cavity of the main frame (1).

5. The household appliance high-efficiency cooling plastic mold according to claim 1, characterized in that: The discharging assembly (2) includes a top plate (26) in contact with the inner wall of the main frame (1), the bottom of the top plate (26) is fixedly connected to a push rod (25), the inner cavity of the push rod (25) is slidably connected to a connecting rod (24), the surface of the connecting rod (24) is threadedly connected to a connecting column (27), and the top of the connecting column (27) is fixedly connected to the push rod (25).

6. The household appliance high-efficiency cooling plastic mold according to claim 5, characterized in that: Two slide plates (270) are fixedly connected to the surface of the connecting column (27), and the slide plates (270) are adapted to slide in the empty grooves provided on the inner wall of the main frame (1).

7. The household appliance high-efficiency cooling plastic mold according to claim 5, characterized in that: The bottom of the connecting rod (24) is fixedly connected to a transmission gear (23), the outer edge of the transmission gear (23) is meshed with a gear (22), the bottom of the gear (22) is fixedly connected to a motor (21), the motor (21) is fixedly connected to the inner cavity of the main frame (1), and the motor (21) drives the motor shaft to drive the gear (22) to rotate.

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