Power supply box manufacturing mold

Abstract

The utility model discloses a power box manufacturing die which comprises a supporting frame, a fixed die is fixed on one side of the supporting frame, a movable die is arranged opposite to the fixed die, the top end of the movable die is connected with a sliding rod, the sliding rod slides along the top of the supporting frame, and the fixed die comprises a fixed die core and a fixed die shell wrapping the fixed die core. The movable mold comprises a movable mold core and a movable mold shell wrapping the movable mold core, a cold air inlet and a cold air outlet are formed in the fixed mold shell and the movable mold shell respectively, a conveying belt used for conveying finished power supply boxes is arranged below the mold closing position of the fixed mold and the movable mold, and a sprue bush connected with an injection machine is arranged on the fixed mold. According to the power box manufacturing die, products formed through low-temperature cold air cooling are high in cooling speed, automatic die opening and closing are achieved, finished products are directly conveyed, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of power box production, and specifically relates to a power box manufacturing mold. Background Art

[0002] The power box is an electrical accessory used to install, protect and organize wire connections. The power box is not only the center of power distribution, but also a key equipment to ensure the safe and stable operation of the power system. The power box is usually a plastic part, which is formed using a mold. The mold for manufacturing the power box is generally an injection mold, which uses the injection molding process, also known as injection molding, which is a conventional technology for plastic molding. The injection molding process begins with heating solid plastic particles to melt into a liquid state according to a specific melting point, and then the molten plastic is quickly injected into the mold cavity under high pressure through the screw of the injection machine. The mold consists of two parts so that the finished product can be taken out separately. The molten plastic fills the mold cavity and is cooled through the water channel in the mold to solidify the plastic, thereby obtaining a product with the same shape as the mold cavity. The existing power box mold uses water cooling, which is slow, and the mold cannot open and close automatically, requiring manual assistance, which increases labor costs. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a power box manufacturing mold, which can cool and mold the product by low-temperature cold air, has a fast cooling speed, automatically opens and closes the mold, and directly transports the finished product, thereby improving production efficiency.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A power box manufacturing mold, which includes a supporting frame, a fixed mold is fixed on one side of the supporting frame, a movable mold is arranged opposite to the fixed mold, the top of the movable mold is connected to the sliding rod, the sliding rod slides along the top of the supporting frame, the fixed mold includes a fixed mold core and a fixed mold shell wrapping the fixed mold core, the movable mold includes a movable mold core and a movable mold shell wrapping the movable mold core, the fixed mold shell and the movable mold shell are respectively provided with a cold air inlet and a cold air outlet, a conveyor belt for conveying the finished power box is arranged below the position where the fixed mold and the movable mold are closed, and a gate sleeve connected to an injection machine is opened on the fixed mold.

[0006] Furthermore, the support frame includes two parallel columns and a top beam connecting the two columns. The fixed mold is fixed on one of the columns. The top beam is provided with a T-shaped limit groove. The limit groove is arranged along the length direction of the top beam. The limit groove includes a horizontal groove and a vertical groove connected to the horizontal groove. The vertical groove constitutes a channel for the sliding rod to move.

[0007] Furthermore, a sliding block perpendicular to the sliding rod is connected to the top end of the sliding rod, and the sliding block slides along the horizontal groove.

[0008] Furthermore, a motor is fixed on the column opposite to the fixed mold, the output shaft of the motor is connected to the threaded rod, and the free end of the threaded rod passes through the sliding rod.

[0009] Furthermore, a threaded through hole for the threaded rod to extend out is opened on the sliding rod between the sliding block and the movable mold, and the thread of the through hole matches the thread of the threaded rod. When the motor is started, the threaded rod rotates, and the threaded rod is connected to the sliding rod through a thread, thereby bringing the movable mold closer to or away from the fixed mold to realize the mold opening and closing operation. The threaded connection ensures the accuracy of the mold closing.

[0010] Furthermore, a cold air inlet is arranged at the top of the fixed mold shell and the movable mold shell and is connected to the cold air input duct, a cold air outlet is arranged at the lower side of the fixed mold shell and the movable mold shell and is connected to the cold air output duct, the cold air input duct near the cold air inlet of the movable mold shell and the cold air output duct near the cold air outlet of the movable mold shell are respectively arranged in a spiral shape, and when the sliding rod moves along the top beam, the cold air input duct and the cold air output duct can freely extend and retract.

[0011] Furthermore, the space between the fixed mold core and the fixed mold shell, and the space between the movable mold core and the movable mold shell are respectively provided with a plurality of partitions arranged at intervals and in an alternating manner. The plurality of partitions form an S-shaped channel, which prolongs the residence time of the cold air in the fixed mold shell and the movable mold shell, improves the heat exchange efficiency, and quickly cools the power box.

[0012] Furthermore, the conveying direction of the conveyor belt is perpendicular to the top beam. The conveyor belt is used to receive the finished products after cooling. After the mold is opened, the finished products remain on the conveyor belt, and the conveyor belt is transported to the packaging workshop.

[0013] Furthermore, a distance sensor for measuring the displacement of the sliding rod is provided on the pillar above the fixed mold. The distance sensor is interlocked with the motor. The distance sensor can be, for example, a laser distance sensor. When the distance sensor detects the moving distance of the movable mold to achieve mold closing, the motor is interlocked and shut down.

[0014] Furthermore, the cold air output pipes of the fixed mold and the movable mold are merged and connected to the high-temperature gas inlet of the cooling box. The low-temperature gas output pipe of the cooling box is divided into two branches, one branch is connected to the cold air input pipe of the fixed mold, and the other branch is connected to the cold air input pipe of the movable mold. A fan is provided on the low-temperature gas output pipe.

[0015] Furthermore, an evaporator is provided in the cooling box, and the refrigerant medium outlet of the evaporator is connected to the refrigerant medium delivery pipeline. A compressor and a condenser are sequentially provided on the refrigerant medium delivery pipeline along the refrigerant medium delivery direction. The refrigerant medium output pipeline of the condenser is connected to the evaporator after passing through an expansion valve.

[0016] Beneficial effects of the utility model:

[0017] The utility model discloses a power box manufacturing mold, which is threadedly connected to a sliding rod by a threaded rod, and is used in conjunction with a distance measuring sensor to realize automatic opening and closing of a fixed mold and a movable mold. The threaded connection ensures the opening and closing accuracy of the mold, simplifies the mold structure, and reduces production costs. A plurality of partitions arranged in an interlaced manner at intervals are arranged inside the fixed mold shell and the movable mold shell, and the plurality of partitions form an S-shaped channel, which prolongs the residence time of cold air in the fixed mold shell and the movable mold shell, improves heat exchange efficiency, quickly cools the mold, prevents product overheating, and ensures product quality. A conveyor belt outputs the finished power box in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a front view of a power box manufacturing mold.

[0019] Figure 2 for Figure 1 Middle AA section view.

[0020] Figure 3 It is a longitudinal section view of the movable mold and the fixed mold.

[0021] Figure 4 A schematic diagram of the refrigeration system.

[0022] Reference numerals:

[0023] 1-support frame, 101-column, 102-top beam, 2-fixed mold, 201-fixed mold core, 202-fixed mold shell, 3-movable mold, 301-movable mold core, 302-movable mold shell, 4-sliding rod, 5-conveyor belt, 6-gate sleeve, 7-sliding block, 8-motor, 9-threaded rod, 10-through hole, 11-fan, 12-partition, 13-distance sensor, 14-cooling box, 15-evaporator, 16-compressor, 17-condenser, 18-expansion valve, 19-mold cavity, 20-cold air inlet, 21-cold air outlet,

[0024] L1-cold air input pipeline, L2-cold air output pipeline, L3-low-temperature gas output pipeline, L4-refrigeration medium delivery pipeline. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] like Figure 1-4As shown, a power box manufacturing mold includes a support frame 1, a fixed mold 2 is fixed on one side of the support frame 1, a movable mold 3 is arranged opposite to the fixed mold 2, the top of the movable mold 3 is connected to the sliding rod 4, the sliding rod 4 slides along the top of the support frame 1, the fixed mold 2 includes a fixed mold core 201 and a fixed mold shell 202 wrapping the fixed mold core 201, the movable mold 3 includes a movable mold core 301 and a movable mold shell 302 wrapping the movable mold core 301, the fixed mold shell 202 and the movable mold shell 302 are respectively provided with a cold air inlet 20 and a cold air outlet 21, a conveyor belt 5 for conveying the finished power box is arranged below the position where the fixed mold 2 and the movable mold 3 are closed, and a gate sleeve 6 connected to the injection machine is opened on the fixed mold 2.

[0027] The support frame 1 includes two parallel columns 101 and a top beam 102 connecting the two columns 101. The fixed mold 2 is fixed on one of the columns 101. The top beam 102 is provided with a T-shaped limit groove. The limit groove is arranged along the length direction of the top beam 102. The limit groove includes a horizontal groove and a vertical groove connected to the horizontal groove. The vertical groove constitutes a channel for the sliding rod 4 to move.

[0028] The top end of the sliding rod 4 is connected with a sliding block 7 which is perpendicular to the sliding rod 4 , and the sliding block 7 slides along the horizontal groove.

[0029] A motor 8 is fixed on the column 101 opposite to the fixed mold 2 , and the output shaft of the motor 8 is connected to the threaded rod 9 , and the free end of the threaded rod 9 passes through the sliding rod 4 .

[0030] A threaded through hole 10 is provided on the sliding rod 4 between the sliding block 7 and the movable mold 3 for the threaded rod 9 to extend out. The thread of the through hole 10 matches the thread of the threaded rod 9. When the motor 8 is started, the threaded rod 9 rotates. The threaded rod 9 is connected to the sliding rod 4 through a thread, and then the movable mold 3 is brought closer to or away from the fixed mold 2 to realize the mold opening and closing operation. The threaded connection ensures the accuracy of the mold closing.

[0031] The cold air inlet 20 is arranged at the top of the fixed mold shell 202 and the movable mold shell 302 and is connected to the cold air input duct L1. The cold air outlet 21 is arranged at the lower side of the fixed mold shell 202 and the movable mold shell 302 and is connected to the cold air output duct L2. The cold air input duct L1 of the cold air inlet 20 close to the movable mold shell 302 and the cold air output duct L2 of the cold air outlet 21 close to the movable mold shell 302 are respectively arranged in a spiral shape. When the sliding rod 4 moves along the top beam 102, the cold air input duct and the cold air output duct can be freely extended and retracted.

[0032] The space between the fixed mold core 201 and the fixed mold shell 202, and the space between the movable mold core 301 and the movable mold shell 302 are respectively provided with a plurality of partitions 12 arranged at intervals and in an alternating manner. The plurality of partitions 12 form an S-shaped channel, which prolongs the residence time of the cold air in the fixed mold shell 202 and the movable mold shell 302, improves the heat exchange efficiency, and quickly cools the power box.

[0033] The conveying direction of the conveyor belt 5 is perpendicular to the top beam 102. The conveyor belt 5 is used to receive the finished products after cooling. After the mold is opened, the finished products remain on the conveyor belt 5, and the conveyor belt 5 is transported to the packaging workshop.

[0034] A distance sensor 13 for measuring the displacement of the sliding rod 4 is provided on the pillar above the fixed mold 2. The distance sensor 13 is interlocked with the motor 8. The distance sensor 13 can be, for example, a laser distance sensor. When the distance sensor 13 detects the moving distance of the movable mold 3 to achieve mold closing, the motor 8 is interlocked and turned off.

[0035] The cold air output duct L2 of the fixed mold 2 and the movable mold 3 are merged and connected to the high-temperature gas inlet of the cooling box 14. The low-temperature gas output duct L3 of the cooling box 14 is divided into two branches, one branch is connected to the cold air input duct L1 of the fixed mold 2, and the other branch is connected to the cold air input duct L1 of the movable mold 3. A fan 11 is provided on the low-temperature gas output duct L3.

[0036] The cooling box 14 is provided with an evaporator 15, the refrigerant outlet of the evaporator 15 is connected to the refrigerant delivery pipeline L4, and the refrigerant delivery pipeline L4 is provided with a compressor 16 and a condenser 17 in sequence along the refrigerant delivery direction, and the refrigerant output pipeline of the condenser 17 is connected to the evaporator 15 after passing through an expansion valve 18. The evaporator 15 is preferably a finned evaporator 15, and the cold air in the fixed mold shell 202 and the movable mold shell 302 absorbs the heat of the molten plastic and turns into hot air, which is transported to the cooling box 14, and the refrigerant in the evaporator 15 evaporates and absorbs the heat of the hot air, and the hot air is cooled to cool The cold air enters the movable mold shell 302 and the fixed mold shell 202 through the low-temperature gas output pipe L3 and the cold air input pipe L1 of the cooling box 14 in turn, and continues to absorb the heat of the molten plastic to achieve circulating cooling; the liquid refrigerant medium in the evaporator 15 evaporates and absorbs heat to become a high-temperature and low-pressure gas, and then is transported to the compressor 16, and is compressed into a high-temperature and high-pressure gas by the compressor 16. The high-temperature and high-pressure gas releases heat through the condenser 17 and becomes a liquid at room temperature and high pressure, and then enters the evaporator 15 through the expansion valve. The liquid refrigerant medium evaporates in the evaporator 15 and absorbs the heat of the hot air to achieve the circulation of the refrigerant medium.

[0037] Working principle of a power box manufacturing mold:

[0038] The motor 8 rotates forward, and the threaded rod 9 drives the sliding rod 4 and the movable mold 3 to move toward the fixed mold 2. When the distance measuring sensor 13 detects the moving distance of the movable mold 3 to achieve mold closing, the motor 8 is interlocked and closed, and injection molding is performed into the mold cavity 19 through the gate sleeve 6. After the injection molding is completed, the pressure is maintained. When the pressure maintenance ends, the fan 11 is turned on to pass cold air into the fixed mold shell 202 and the movable mold shell 302. The cold air absorbs the heat of the molten plastic, and the molten plastic solidifies to form a power box. The motor 8 is started and rotated in the reverse direction. The movable mold 3 and the fixed mold 2 are separated, and the finished power box remains on the conveyor belt 5. The conveyor belt 5 transports the power box to the packaging workshop.

[0039] The above describes the preferred embodiments of the present invention, however, the above description is not intended to be limiting. A person skilled in the art may make many changes or modifications to the present invention without departing from the spirit and scope of the present invention. The changes or modifications should be included in the scope of the appended claims.

Claims

1. A power box manufacturing mold, characterized in that: The invention comprises a support frame (1), a fixed mold (2) is fixed on one side of the support frame (1), a movable mold (3) is arranged opposite to the fixed mold (2), the top end of the movable mold (3) is connected to a sliding rod (4), the sliding rod (4) slides along the top of the support frame (1), the fixed mold (2) comprises a fixed mold core (201) and a fixed mold shell (202) wrapping the fixed mold core (201), the movable mold (3) comprises a movable mold core (301) and a movable mold shell (302) wrapping the movable mold core (301), the fixed mold shell (202) and the movable mold shell (302) are respectively provided with a cold air inlet and a cold air outlet, a conveyor belt (5) for conveying a finished power supply box is arranged below the position where the fixed mold (2) and the movable mold (3) are closed, and a sprue sleeve (6) connected to an injection molding machine is provided on the fixed mold (2).

2. The power box manufacturing mold according to claim 1, characterized in that: The support frame (1) comprises two parallel columns (101) and a top beam (102) connecting the two columns (101); the fixed mold (2) is fixed on one of the columns (101); the top beam (102) is provided with a T-shaped limit groove, the limit groove is arranged along the length direction of the top beam (102); the limit groove comprises a horizontal groove and a vertical groove connected to the horizontal groove; the vertical groove constitutes a channel for the sliding rod (4) to move.

3. The power box manufacturing mold according to claim 2, characterized in that: The top end of the sliding rod (4) is connected with a sliding block (7) which is perpendicular to the sliding rod (4), and the sliding block (7) slides along the horizontal groove.

4. The power supply box manufacturing mold according to claim 3, characterized in that: A motor (8) is fixed on a column (101) opposite to the fixed mold (2), an output shaft of the motor (8) is connected to a threaded rod (9), and a free end of the threaded rod (9) passes through the sliding rod (4).

5. The power supply box manufacturing mold according to claim 4, characterized in that: A threaded through hole (10) for the threaded rod (9) to extend out is formed on the sliding rod (4) between the sliding block (7) and the movable mold (3), and the thread of the through hole (10) matches the thread of the threaded rod (9).

6. The power box manufacturing mold according to claim 1, characterized in that: The cold air inlet is arranged at the top of the fixed mold shell (202) and the movable mold shell (302) and is connected to the cold air input duct (L1); the cold air outlet is arranged at the lower side of the fixed mold shell (202) and the movable mold shell (302) and is connected to the cold air output duct (L2); the cold air input duct (L1) close to the cold air inlet of the movable mold shell (302) and the cold air output duct (L2) close to the cold air outlet of the movable mold shell (302) are respectively arranged in a spiral shape.

7. The power supply box manufacturing mold according to claim 1, characterized in that: The space between the fixed mold core (201) and the fixed mold shell (202), and the space between the movable mold core (301) and the movable mold shell (302) are respectively provided with a plurality of partitions (12) arranged in an interlaced manner, and the plurality of partitions (12) form an S-shaped channel.

8. The power supply box manufacturing mold according to claim 1, characterized in that: The conveying direction of the conveyor belt (5) is perpendicular to the top beam (102).

9. The power supply box manufacturing mold according to claim 2, characterized in that: A distance sensor (13) for measuring the displacement of the sliding rod (4) is arranged on the support column above the fixed mold (2), and the distance sensor (13) is interlocked with the motor (8).

10. The power supply box manufacturing mold according to claim 6, characterized in that: The cold air output pipe (L2) is connected to the high-temperature gas inlet of the cooling box (14) after merging. The low-temperature gas output pipe (L3) of the cooling box (14) is divided into two branches, one branch is connected to the cold air input pipe (L1) of the fixed mold (2), and the other branch is connected to the cold air input pipe (L1) of the movable mold (3). A fan (11) is provided on the low-temperature gas output pipe (L3).

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