Needle cage forming die

Abstract

The utility model discloses a kind of needle cage forming die. Needle cage forming die, comprising: bottom plate, lower mould and mounting bracket are installed on the bottom plate, upper mould is set in the lower of mounting bracket, electric push rod is installed on the mounting bracket, the electric push rod is fixedly connected with the upper mould, air cooling mechanism and water cooling mechanism are set in the top of bottom plate;The air cooling mechanism includes the radiating fan fixed in the both sides of mounting bracket;The water cooling mechanism includes the liquid inlet pipe, liquid outlet pipe and cooling pipe connected in sequence, the cooling pipe passes through the lower mould.The needle cage forming die provided by the utility model is set by air cooling mechanism and water cooling mechanism, air flow rate of mould surface is improved using radiating fan, mould surface is cooled and radiated, low-temperature coolant is used to pass through mould at the same time, mould inside is cooled and radiated, and the both are used in cooperation, and product forming efficiency can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a die for forming a needle roller retainer. Background Technology

[0002] Rolling bearings generally consist of an inner ring, an outer ring, multiple rolling elements, and a cage. The main function of the cage is to separate the rolling elements at equal intervals. The cage evenly separates the rolling elements in the bearing, allowing each rolling element to roll normally between the inner and outer rings. In addition, the cage guides the movement of the rolling elements, improves the internal lubrication conditions of the bearing, and prevents the rolling elements from falling off. In the production process of needle roller cages, plastic cages are generally injection molded using molds.

[0003] A document with publication number CN221292183U discloses a die for forming needle roller cages, including a base. Support frames are fixedly connected to both outer surfaces of the base. A fixing plate is fixedly connected to the upper outer surface of the support frames. A cylinder is fixedly connected to the upper outer surface of the fixing plate. An upper template is fixedly connected to the lower outer surface of the cylinder, which passes through the lower outer surface of the fixing plate. An injection hole is provided on the upper outer surface of the upper template. A cooling assembly is provided on one outer surface of the support frames. A lower die is detachably connected to the upper outer surface of the base. A mounting and fixing assembly is provided between the lower die and the base. This die for forming needle roller cages, through its cooling assembly, can improve the cooling speed of the die and increase the efficiency of the needle roller cage cooling and forming. The mounting and fixing assembly facilitates the disassembly of the die for maintenance or cleaning.

[0004] However, the mold uses air cooling to cool it down, which is not very efficient.

[0005] Therefore, it is necessary to provide a die for forming a needle roller cage to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to overcome the defects of the prior art, this utility model provides a roller retainer forming mold that can dissipate heat both inside and outside, thereby improving product forming efficiency.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A needle roller retainer forming mold includes: a base plate, a lower mold and a mounting frame mounted on the base plate, an upper mold below the mounting frame, an electric push rod mounted on the mounting frame, the electric push rod being fixedly connected to the upper mold, and an air cooling mechanism and a water cooling mechanism above the base plate. The air cooling mechanism includes cooling fans symmetrically fixed on both sides of the mounting frame; the water cooling mechanism includes an inlet pipe, an outlet pipe and a cooling pipe connected in sequence, with the cooling pipe passing through the lower mold.

[0008] Preferably, a cavity is formed on the lower mold.

[0009] Preferably, a guide post is fixedly installed on the top of the upper mold, and the guide post is slidably connected to the mounting frame.

[0010] Preferably, the lower mold includes a bottom mold fixed on the base plate and a moving mold slidably connected to the bottom mold. The moving mold is connected to a cylinder fixedly mounted on the mounting frame. The bottom mold and the moving mold can be combined to form a cavity.

[0011] Preferably, two guide rods are fixedly installed on one side of the bottom mold, and the guide rods are slidably connected to the moving mold.

[0012] Preferably, a limiting block is installed at the end of the guide rod.

[0013] Preferably, multiple positioning columns are fixedly installed at the bottom of the bottom mold, and positioning grooves are opened on the bottom plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) By setting up a wind-cooling mechanism and a water-cooling mechanism, the present invention uses a cooling fan to increase the air flow rate on the surface of the mold to cool and dissipate heat on the surface of the mold, and at the same time uses a low-temperature coolant to pass through the mold to cool and dissipate heat inside the mold. The two work together to effectively improve the product molding efficiency. (2) By fixing and installing guide columns on the top of the upper mold, this utility model can help improve the lifting stability of the upper mold; (3) By installing two guide rods on one side of the bottom mold, this utility model can effectively improve the movement stability of the moving mold; (4) By setting a lower mold including a bottom mold and a moving mold, this utility model can easily remove the product from the mold; (5) This utility model can improve the installation accuracy of the lower mold and facilitate the installation of the lower mold by fixing multiple positioning columns at the bottom of the bottom mold and opening positioning grooves on the bottom plate. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of the needle roller retainer forming mold provided by this utility model; Figure 2 for Figure 1 The diagram shows a front view of the die for forming a needle roller cage. Figure 3 for Figure 1 The diagram shows the structure of the water cooling mechanism in the needle roller cage forming mold. Figure 4 for Figure 1 The diagram shows the structure of the lower die in the needle roller retainer forming mold.

[0016] The corresponding names of the attached figures are: 1-base plate, 2-lower mold, 3-mounting bracket, 4-upper mold, 5-electric push rod, 6-cooling fan, 7-inlet pipe, 8-outlet pipe, 9-cooling pipe, 10-cavity, 11-guide post, 12-bottom mold, 13-moving mold, 14-guide rod, 15-limiting block, 16-positioning post, 17-cylinder. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments. Example

[0018] like Figure 1-4 As shown, the roller retainer molding die provided by this utility model includes: a base plate 1, a lower mold 2 and a mounting frame 3 installed on the base plate 1, an upper mold 4 arranged below the mounting frame 3, an electric push rod 5 installed on the mounting frame 3, the bottom end (output end) of the electric push rod 5 being fixedly connected to the upper mold 4, the upper mold 4 being driven to descend and close with the lower mold 2 by the electric push rod 5, an injection hole being opened on the upper mold 4, and an avoidance hole being opened on the mounting frame 3, the avoidance hole being arranged above the injection hole for connecting the injection pipeline. To cool the mold, an air-cooling mechanism and a water-cooling mechanism are installed above the base plate 1. The air-cooling mechanism includes two cooling fans 6 symmetrically fixed on both sides of the mounting bracket 3. The two cooling fans 6 blow air towards the mold (lower mold 2 and upper mold 4) to dissipate heat. The water-cooling mechanism includes an inlet pipe 7, an outlet pipe 8, and a cooling pipe 9 (the inlet pipe 7 should be connected to a cooling pump, which is connected to a low-temperature coolant storage tank or other equipment). The cooling pipe 9 passes through the lower mold 2. Low-temperature coolant is pumped in through the inlet pipe 7, passes through the cooling pipe 9, and is discharged from the outlet pipe 8, which lowers the temperature of the cooling pipe 9. The cooling pipe 9 exchanges heat with the lower mold 2, cooling the lower mold 2. This allows the injection-molded needle roller retainer in the lower mold 2 to cool down more quickly, improving the product molding speed / efficiency.

[0019] By setting up air-cooling and water-cooling mechanisms, the cooling fan 6 increases the airflow rate on the mold surface to cool and dissipate heat, while the low-temperature coolant passes through the mold to cool and dissipate heat inside the mold. The two work together to effectively improve product molding efficiency. Example

[0020] like Figure 3 As shown, a cavity 10 is opened on the lower mold 2, and a protrusion adapted to the cavity 10 is provided at the bottom of the upper mold 4. The protrusion is inserted into the cavity 10 to form an injection cavity. Molding is injected into the injection cavity, and after cooling, a product (needle roller retainer) is formed.

[0021] By opening a cavity 10 on the lower mold 2, the injection molding of the product can be facilitated. Example

[0022] like Figure 2 As shown, a guide column 11 is fixedly installed on the top of the upper mold 4. The guide column 11 passes through the mounting frame 3 and is slidably connected to the mounting frame 3. When the upper mold 4 is raised or lowered, the guide column 11 is raised or lowered accordingly, thereby improving the raising and lowering stability of the upper mold 4.

[0023] By fixing and installing guide posts 11 on the top of the upper mold 4, the lifting stability of the upper mold 4 can be improved. Example

[0024] like Figure 2-4 As shown, in this embodiment, the lower mold 2 adopts a split design. The lower mold 2 includes a bottom mold 12 fixed on the base plate 1 and a moving mold 13 slidably connected to the bottom mold 12. The moving mold 13 is connected to a cylinder 17 fixedly mounted on the mounting bracket 3. The bottom mold 12 and the moving mold 13 can be combined to form a cavity 10, or they can be separated by the cylinder 17. After the product is formed, it is convenient to remove the product (needle roller retainer) from the cavity 10. It is worth noting that the cooling pipe 9 is fixedly connected to the bottom mold 12 and slidably connected to the moving mold 13. The cooling pipe 9 can guide the moving mold 13 and also cool the bottom mold 12 and the moving mold 13.

[0025] By setting a lower mold 2 that includes a bottom mold 12 and a moving mold 13, the product can be easily removed from the mold. Example

[0026] like Figure 4 As shown, to improve the movement stability of the moving mold 13, two guide rods 14 are fixedly installed on one side of the bottom mold 12. The guide rods 14 pass through the moving mold 13 and are slidably connected to it. Limiting blocks 15 are installed at the ends of the guide rods 14 to prevent the moving mold 13 from falling off the guide rods 14. In use, the cylinder 17 drives the moving mold 13 to move along the axial direction of the guide rods 14, thereby improving the movement stability of the moving mold 13.

[0027] By installing two guide rods 14 on one side of the bottom mold 12, the movement stability of the moving mold 13 can be effectively improved. Example

[0028] like Figure 4 As shown, multiple positioning posts 16 are fixedly installed at the bottom of the bottom mold 12, and corresponding positioning grooves are opened on the base plate 1. The positioning posts 16 are inserted into the positioning grooves to position the installation position of the bottom mold 12. Then, screws are used to fix the bottom mold 12 to the base plate 1, thereby improving the installation accuracy of the lower mold 2 and facilitating the installation of the lower mold 2.

[0029] By fixing multiple positioning posts 16 at the bottom of the bottom mold 12 and opening positioning grooves on the base plate 1, the installation accuracy of the lower mold 2 can be improved and the installation of the lower mold 2 can be facilitated.

[0030] Working principle: During use, the electric push rod 5 drives the upper mold 4 to descend and close with the lower mold 2. Injection is performed into the mold after the mold is closed through the injection hole on the upper mold 4. After injection is completed, the upper mold 4 rises, the cooling fan 6 starts, and blows air to cool the roller holder on the lower mold 2. At the same time, low-temperature coolant is pumped in through the inlet pipe 7, passes through the cooling pipe 9, and is discharged from the outlet pipe 8, which lowers the temperature of the cooling pipe 9. The cooling pipe 9 exchanges heat with the lower mold 2, cooling the lower mold 2. This allows the roller holder inside the lower mold 2 to cool down more quickly, improving the product molding speed. By using air cooling and water cooling to cool and dissipate heat from the mold, the product molding efficiency can be effectively improved.

Claims

1. A die for forming a needle roller retainer, characterized in that, include: A base plate (1) is provided, on which a lower mold (2) and a mounting frame (3) are installed. An upper mold (4) is provided below the mounting frame (3). An electric push rod (5) is installed on the mounting frame (3). The electric push rod (5) is fixedly connected to the upper mold (4). An air-cooling mechanism and a water-cooling mechanism are provided above the base plate (1). The air-cooling mechanism includes cooling fans (6) fixed on both sides of the mounting bracket (3); The water cooling mechanism includes an inlet pipe (7), an outlet pipe (8), and a cooling pipe (9) connected in sequence, with the cooling pipe (9) passing through the lower mold (2).

2. The die for forming a needle roller retainer according to claim 1, characterized in that, A cavity (10) is formed on the lower mold (2).

3. The die for forming a needle roller retainer according to claim 1, characterized in that, The upper mold (4) is fixedly installed with a guide post (11) on the top, and the guide post (11) is slidably connected to the mounting frame (3).

4. The die for forming a needle roller retainer according to claim 1, characterized in that, The lower mold (2) includes a bottom mold (12) fixed on the base plate (1) and a moving mold (13) slidably connected to the bottom mold (12). The moving mold (13) is connected to a cylinder (17) fixedly installed on the mounting bracket (3).

5. The die for forming a needle roller retainer according to claim 4, characterized in that, Two guide rods (14) are fixedly installed on one side of the bottom mold (12), and the guide rods (14) are slidably connected to the moving mold (13).

6. The die for forming a needle roller retainer according to claim 5, characterized in that, A limiting block (15) is installed at the end of the guide rod (14).

7. The die for forming a needle roller retainer according to claim 4, characterized in that, Multiple positioning columns (16) are fixedly installed at the bottom of the bottom mold (12), and positioning grooves are opened on the bottom plate (1).

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