Injection mold for bearing machining

Abstract

The utility model relates to the technical field of bearing processing, and discloses an injection mold for bearing processing, which comprises a lower mold, an upper mold is arranged above the lower mold, a lower mold cavity is arranged in the lower mold, an upper mold cavity is arranged in the upper mold, an injection molding pipe is fixedly arranged on the upper surface of the upper mold, and a lower mold cavity is arranged in the injection molding pipe. An injection molding pipe is fixedly installed on the upper surface of the upper mold and is in through connection with the upper mold cavity, a negative pressure fan is fixedly installed on the side, located on the injection molding pipe, of the upper surface of the upper mold and is in through connection with the upper mold cavity, and a folding mechanism is arranged above the upper mold. According to the injection mold for bearing machining, by arranging a negative pressure fan, when the mold is used for injection molding operation of bearing machining, a worker can extract gas in the upper mold cavity and the lower mold cavity which are folded by operating the negative pressure fan, so that the mold cavities for injection molding are in a negative pressure state; bubbles generated in the injection molding process are reduced, and the machining quality of the mold is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing processing technical field, concretely is a kind of injection mold for bearing processing. BACKGROUND

[0002] Bearing is important spare part in contemporary mechanical equipment, in the processing of bearing, preliminary forming is carried out to bearing using injection mold.

[0003] The prior art patent literature with the authorization announcement No.CN213500640U provides a mold for bearing processing convenient to demould, the utility model is set up by threaded rod and threaded block cooperation, threaded rod starts rotating to make lower mold cavity move upwards, improve demoulding efficiency, electric heating net can further heat hot material, prevent residual hot material to cool in discharging pipe, when injection is completed, cooling water is passed in cooling water pipe, can accelerate cooling.

[0004] But the existing injection mold for bearing processing is not convenient to discharge the gas in the forming mold cavity when using, the residual gas in the mold cavity directly affects the uniformity of material filling when injecting injection material, so that the finished product bearing is prone to bubble, and the production quality of bearing processing is reduced. UTILITY MODEL CONTENT

[0005] (I) technical problem solved

[0006] The utility model aims at providing an injection mold for bearing processing to solve the problem that the existing injection mold for bearing processing is not convenient to discharge the gas in the mold forming cavity when using.

[0007] (II) technical scheme

[0008] To achieve the above object, the utility model provides the following technical scheme: an injection mold for bearing processing, including lower mold, the upper side of lower mold is provided with upper mold, the inside of lower mold is provided with lower mold cavity, the inside of upper mold is provided with upper mold cavity, the upper surface of upper mold is fixedly installed with injection tube;

[0009] The injection tube is connected with upper mold cavity, negative pressure fan is fixedly installed on the one side of the upper surface of upper mold, the negative pressure fan is connected with upper mold cavity, the upper side of upper mold is provided with closing mechanism, one side of lower mold is provided with cooling mechanism.

[0010] Preferably, the closing mechanism includes a fixed frame, the fixed frame is fixedly installed on the upper surface of the lower mold, the upper surface of the fixed frame is fixedly installed with a hydraulic cylinder, the transmission end of the bottom end of the hydraulic cylinder is fixedly connected with an adjusting rod.

[0011] Preferably, the end of the adjusting rod away from the hydraulic cylinder is fixedly connected to the upper mold, the bottom end of the upper mold is fixedly connected to an insert rod, and the upper surface of the lower mold is fixedly provided with a slot, with the insert rod corresponding to the slot.

[0012] Preferably, the cooling mechanism includes a cooling water tank located on one side of the lower mold, a pump body fixedly installed on one side of the cooling water tank, and a water inlet pipe fixedly connected to the side of the pump body away from the cooling water tank.

[0013] Preferably, a heat exchange chamber is fixedly provided inside the lower mold, and the end of the water inlet pipe away from the pump body extends into the interior of the heat exchange chamber. A first metal heat-conducting plate is provided inside the lower mold and is located on the outside of the lower mold cavity. A water outlet pipe is fixedly installed on one side of the lower mold and is connected to the heat exchange chamber.

[0014] Preferably, a second metal heat-conducting plate is connected to the inner side of the lower mold cavity, the end of the water outlet pipe away from the lower mold is fixedly connected to the cooling water tank, and a controller is fixedly installed on the outer surface of the cooling water tank.

[0015] Preferably, a liquid temperature sensor is fixedly installed at the bottom of the interior of the cooling water tank, and a semiconductor refrigeration chip is fixedly installed inside the cooling water tank, with the heating end of one end of the semiconductor refrigeration chip extending to the outside of the cooling water tank.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This injection mold for bearing processing, by setting a negative pressure fan, allows the operator to extract the gas inside the upper and lower mold cavities after they are joined by operating the negative pressure fan during the injection molding operation of bearing processing, so that the injection mold cavity is in a negative pressure state, thereby reducing the air bubbles generated during the injection process and improving the processing quality of the mold.

[0018] 2. This injection mold for bearing processing, through the setting of a cooling mechanism, allows the design of the No. 1 and No. 2 metal heat-conducting plates to simultaneously exchange heat on the inner and outer sides of the mold cavity during use, resulting in more uniform cooling of the injection material. The liquid temperature sensor design enables real-time monitoring of the internal temperature of the cooling water tank, and the design of the semiconductor refrigeration chip achieves cooling of the coolant, preventing the coolant temperature from rising and affecting the cooling efficiency of the mold, thus improving the practicality of the mold. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2This is a three-dimensional structural diagram of the fixing frame of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the lower mold of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the cooling water tank of this utility model.

[0023] In the diagram: 1. Lower mold; 2. Upper mold; 3. Lower mold cavity; 4. Upper mold cavity; 5. Injection tube; 6. Negative pressure fan; 7. Mating mechanism; 701. Fixing frame; 702. Hydraulic cylinder; 703. Adjusting rod; 704. Insert rod; 705. Slot; 8. Cooling mechanism; 801. Cooling water tank; 802. Pump body; 803. Water inlet pipe; 804. Heat exchange chamber; 805. Metal heat conduction plate No. 1; 806. Metal heat conduction plate No. 2; 807. Water outlet pipe; 808. Controller; 809. Liquid temperature sensor; 810. Semiconductor refrigeration chip. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 4 This utility model provides a technical solution: an injection mold for bearing processing, including a lower mold 1, an upper mold 2 above the lower mold 1, a lower mold cavity 3 inside the lower mold 1, an upper mold cavity 4 inside the upper mold 2, and an injection tube 5 fixedly installed on the upper surface of the upper mold 2.

[0026] The injection tube 5 is connected to the upper mold cavity 4. A negative pressure fan 6 is fixedly installed on the upper surface of the upper mold 2 on one side of the injection tube 5. The negative pressure fan 6 is connected to the upper mold cavity 4. A mating mechanism 7 is set above the upper mold 2. A cooling mechanism 8 is set on one side of the lower mold 1. The operator connects the material conveying pipe to the injection tube 5, and then starts the negative pressure fan 6 to extract the gas inside the upper mold cavity 4 and the lower mold cavity 3, so that the upper mold cavity 4 and the lower mold cavity 3 are in a negative pressure state. Under the negative pressure attraction, the material enters the upper mold cavity 4 and the lower mold cavity 3 through the injection tube 5. Since the gas inside the upper mold cavity 4 and the lower mold cavity 3 is extracted, the injected injection material is homogenized, ensuring the uniformity of material filling.

[0027] The closing mechanism 7 comprises a fixing frame 701 fixedly installed on the upper surface of the lower mold 1, the upper surface of the fixing frame 701 is fixedly installed with a hydraulic cylinder 702, the transmission end of the bottom end of the hydraulic cylinder 702 is fixedly connected with an adjusting rod 703, the end of the adjusting rod 703 away from the hydraulic cylinder 702 is fixedly connected with the upper mold 2, the bottom end of the upper mold 2 is fixedly connected with a plug rod 704, the upper surface of the lower mold 1 is fixedly provided with a plug slot 705, the plug rod 704 corresponds to the plug slot 705, the cooling mechanism 8 comprises a cooling water tank 801, the cooling water tank 801 is located on one side of the lower mold 1, one side of the cooling water tank 801 is fixedly installed with a pump body 802, the side of the pump body 802 away from the cooling water tank 801 is fixedly connected with a water inlet pipe 803, the inside of the lower mold 1 is fixedly provided with a heat exchange cavity 804, the end of the water inlet pipe 803 away from the pump body 802 extends to the inside of the heat exchange cavity 804, the inside of the lower mold 1 is provided with a No. 1 metal heat conduction plate 805, the No. 1 metal heat conduction plate 805 is located on the outside of the lower mold cavity 3, one side of the lower mold 1 is fixedly installed with a water outlet pipe 807, the water outlet pipe 807 is connected with the heat exchange cavity 804, the inside of the lower mold cavity 3 is connected with a No. 2 metal heat conduction plate 806, the end of the water outlet pipe 807 away from the lower mold 1 is fixedly connected with the cooling water tank 801, the outer surface of the cooling water tank 801 is fixedly installed with a controller 808, the bottom end of the inside of the cooling water tank 801 is fixedly installed with a liquid temperature sensor 809, the inside of the cooling water tank 801 is fixedly installed with a semiconductor refrigeration piece 810, the heating end of one end of the semiconductor refrigeration piece 810 extends to the outside of the cooling water tank 801, when the mold is used for bearing processing injection operation, the staff pushes the upper mold 2 by operating the hydraulic cylinder 702, so that the plug rod 704 at the bottom end of the upper mold 2 is inserted into the plug slot 705 in the inside of the lower mold 1, until the upper mold 2 and the lower mold 1 are in full contact, the precise closing of the mold structure is realized, the pump body 802 works to transport the cooling liquid in the inside of the cooling water tank 801 to the inside of the heat exchange cavity 804 through the water inlet pipe 803, the cooling liquid in the inside of the heat exchange cavity 804 exchanges heat with the No. 1 metal heat conduction plate 805, the material injected into the mold cavity is cooled from the outside, the cooling liquid in the inside of the heat exchange cavity 804 exchanges heat with the No. 2 metal heat conduction plate 806, the material injected into the mold cavity is cooled from the inside, the cooling forming efficiency of the injection material is improved, the cooling liquid after heat absorption flows back to the inside of the cooling water tank 801 through the water outlet pipe 807, the liquid temperature sensor 809 monitors the temperature of the cooling liquid in the inside of the cooling water tank 801 in real time, when the temperature of the cooling liquid in the inside of the cooling water tank 801 is too high, the controller 808 starts the semiconductor refrigeration piece 810 to work to refrigerate the cooling liquid, so as to ensure the stable processing of the bearing cooling operation.

[0028] Working principle: when the mold is used for bearing processing injection operation, the operator pushes the upper mold 2 by operating the hydraulic cylinder 702, so that the plug rod 704 at the bottom end of the upper mold 2 is inserted into the plug slot 705 inside the lower mold 1, until the upper mold 2 and the lower mold 1 are in full contact, the precise matching of the mold structure is realized, the operator connects the material conveying pipeline with the injection pipe 5, then starts the negative pressure fan 6, and the gas inside the upper mold cavity 4 and the lower mold cavity 3 is extracted, so that the upper mold cavity 4 and the lower mold cavity 3 are in negative pressure state, under the negative pressure suction, the material enters the inside of the upper mold cavity 4 and the lower mold cavity 3 through the injection pipe 5, because the gas inside the upper mold cavity 4 and the lower mold cavity 3 is extracted, so the injected injection material is homogenized, which guarantees the uniformity of material filling, the pump body 802 works to convey the cooling liquid inside the cooling water tank 801 to the heat exchange cavity 804 inside the cooling water tank 801 through the water inlet pipe 803, the cooling liquid inside the heat exchange cavity 804 exchanges heat with the first metal heat conducting plate 805, cools the injected material in the mold cavity from the outside, the cooling liquid inside the heat exchange cavity 804 exchanges heat with the second metal heat conducting plate 806, cools the injected material in the mold cavity from the inside, improves the cooling forming efficiency of the injection material, and the cooled cooling liquid flows back to the inside of the cooling water tank 801 through the water outlet pipe 807, the liquid temperature sensor 809 monitors the temperature of the cooling liquid inside the cooling water tank 801 in real time, when the temperature of the cooling liquid inside the cooling water tank 801 is too high, the controller 808 starts the semiconductor refrigeration piece 810 to work, and the cooling liquid is refrigerated to ensure the stable operation of the bearing cooling operation.

[0029] Finally, it should be explained that the above content is only used to explain the technical scheme of the present application, and is not a limitation on the protection scope of the present application. Simple modification or equivalent replacement of the technical scheme of the present application by ordinary skilled in the art does not deviate from the essence and scope of the technical scheme of the present application.

Claims

1. An injection mold for bearing processing, comprising a lower mold (1), characterized in that: An upper mold (2) is provided above the lower mold (1), a lower mold cavity (3) is provided inside the lower mold (1), an upper mold cavity (4) is provided inside the upper mold (2), and an injection tube (5) is fixedly installed on the upper surface of the upper mold (2). The injection tube (5) is connected to the upper mold cavity (4). A negative pressure fan (6) is fixedly installed on the upper surface of the upper mold (2) on one side of the injection tube (5). The negative pressure fan (6) is connected to the upper mold cavity (4). A mating mechanism (7) is provided above the upper mold (2). A cooling mechanism (8) is provided on one side of the lower mold (1).

2. The injection mold for bearing processing according to claim 1, characterized in that: The mating mechanism (7) includes a fixed frame (701), which is fixedly installed on the upper surface of the lower mold (1). A hydraulic cylinder (702) is fixedly installed on the upper surface of the fixed frame (701), and an adjusting rod (703) is fixedly connected to the transmission end at the bottom of the hydraulic cylinder (702).

3. The injection mold for bearing processing according to claim 2, characterized in that: The end of the adjusting rod (703) away from the hydraulic cylinder (702) is fixedly connected to the upper mold (2). The bottom end of the upper mold (2) is fixedly connected to the insert rod (704). The upper surface of the lower mold (1) is fixedly provided with a slot (705). The insert rod (704) corresponds to the slot (705).

4. The injection mold for bearing processing according to claim 3, characterized in that: The cooling mechanism (8) includes a cooling water tank (801), which is located on one side of the lower mold (1). A pump body (802) is fixedly installed on one side of the cooling water tank (801), and a water inlet pipe (803) is fixedly connected to the side of the pump body (802) away from the cooling water tank (801).

5. The injection mold for bearing processing according to claim 4, characterized in that: A heat exchange chamber (804) is fixedly provided inside the lower mold (1). The end of the water inlet pipe (803) away from the pump body (802) extends into the heat exchange chamber (804). A first metal heat-conducting plate (805) is provided inside the lower mold (1). The first metal heat-conducting plate (805) is located outside the lower mold cavity (3). A water outlet pipe (807) is fixedly installed on one side of the lower mold (1). The water outlet pipe (807) is connected to the heat exchange chamber (804).

6. The injection mold for bearing processing according to claim 5, characterized in that: The inner side of the lower mold cavity (3) is connected to a second metal heat-conducting plate (806), and the end of the water outlet pipe (807) away from the lower mold (1) is fixedly connected to the cooling water tank (801). A controller (808) is fixedly installed on the outer surface of the cooling water tank (801).

7. The injection mold for bearing processing according to claim 6, characterized in that: A liquid temperature sensor (809) is fixedly installed at the bottom of the interior of the cooling water tank (801). A semiconductor refrigeration chip (810) is fixedly installed inside the cooling water tank (801). The heating end of one end of the semiconductor refrigeration chip (810) extends to the outside of the cooling water tank (801).

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