Injection molding device for bearing retainer

Abstract

The injection molding device comprises a base, a mold seat, a pressing plate and an upper mold, sliding rods are fixedly connected to the two sides of the top end of the base, a lower mold is fixedly connected to the middle position of the top end of the base, a containing groove is formed in the middle position of the top end of the lower mold, and the pressing plate is arranged in the containing groove. And positioning grooves are formed in the two sides of the top end of the lower mold, clamping blocks are connected to the two sides of the interior of the containing groove, and the containing groove is movably connected with the clamping blocks. The placing groove is formed in the top end of the lower die, when the die base is inserted into the placing groove, the clamping block in the placing groove is clamped into the clamping groove in the die base, connection and assembly of the lower die and the die base can be completed, and when the die base needs to be replaced, the pull rod on the lower die is pulled, so that the die base can be replaced conveniently. The pull rod can drive the clamping block to be pulled out of the clamping groove in the mold base through the clamping groove, and at the moment, the bearing retainer injection mold can be rapidly replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing retainer processing, in particular to an injection molding device for a bearing retainer. Background Art

[0002] The bearing cage refers to a bearing part that partially wraps all or part of the rolling elements and moves with them. During the processing of the bearing cage, the bearing cage mold needs to be closed and then the injection molding machine needs to perform injection molding to quickly perform the injection molding of the bearing cage.

[0003] A linear bearing retainer injection mold disclosed in the Chinese utility model patent application disclosure CN218557822U drives the mounting plate upward by a cylinder. At this time, the slide plate loses the extrusion of the protrusion, and the compression spring rebounds the slide plate, so that the limit plate drives the connecting rod and the pad plate to move downward, thereby extruding the linear bearing retainer, and drives the mounting plate upward by a cylinder. At this time, the slide plate loses the extrusion of the protrusion, and the compression spring rebounds the slide plate, so that the limit plate drives the connecting rod and the pad plate to move downward, thereby extruding the linear bearing retainer. However, the overall specifications of the injection molding device are fixed, and only a single specification of bearing retainer can be injected. For the injection molding requirements of bearing retainers of different specifications, the injection mold needs to be replaced as a whole, affecting the overall convenience of the bearing retainer injection molding device. Utility Model Content

[0004] The purpose of the utility model is to provide an injection molding device for a bearing retainer to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection molding device for a bearing retainer, comprising a base, a mold seat, a pressure plate and an upper mold, the two sides of the top of the base are fixedly connected with sliding rods, the middle position of the top of the base is fixedly connected with a lower mold, the middle position of the top of the lower mold is provided with a placement groove, the two sides of the top of the lower mold are provided with positioning grooves, the two sides of the placement groove are connected with clamping blocks, the placement groove and the clamping block are movably connected, one side of the clamping block is fixedly connected with a movable block, one side of the movable block is fixedly connected with a spring, the middle position of one side of the movable block is fixedly connected with a pull rod, and the inside of the placement groove is movably connected with the mold seat.

[0006] Preferably, a clamping groove is provided at the middle position of both sides of the mold base, a clamping block is movably connected inside the clamping groove, and an injection groove is provided inside the top end of the mold base.

[0007] Preferably, a servo motor is installed at a middle position of one side inside the base, and a threaded rod is installed at the output shaft end of the servo motor.

[0008] Preferably, a pressure plate is provided on the outside of the sliding rod, and the sliding rod and the pressure plate are in sliding connection.

[0009] Preferably, a threaded rod is threadedly connected to one side of the pressing plate, and an injection hole is provided at the middle position of the top end of the pressing plate.

[0010] Preferably, an upper mold is fixedly connected to the middle position of the bottom end of the pressing plate, and positioning rods are fixedly connected to both sides of the bottom end of the upper mold.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The injection molding device of the bearing retainer is provided with a placement groove inside the top of the lower mold. When the mold base is inserted into the placement groove, the clamping block in the placement groove is clamped into the clamping groove on the mold base, so that the connection and assembly of the lower mold and the mold base can be completed. When the mold base needs to be replaced, by pulling the pull rod on the lower mold, the pull rod can drive the clamping block to be pulled out of the clamping groove on the mold base through the clamping groove. At this time, the injection mold of the bearing retainer can be quickly replaced, thereby improving the overall applicability of the injection molding device;

[0013] 2. The injection molding device of this bearing retainer is provided with sliding rods on both sides of the top of the base. When the servo motor starts to drive the threaded rod to rotate, the pressure plate on the threaded rod can be freely raised and lowered on the threaded rod. At this time, the pressure plate can slide on the sliding rod, thereby playing a stable limit work on the pressure plate. At the same time, positioning rods are provided on both sides of the bottom end of the upper mold to match the positioning grooves on the lower mold, thereby increasing the stability of the overall mold closing of the lower mold and the upper mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a front view structural schematic diagram of the utility model;

[0016] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0017] Figure 4 It is a schematic diagram of the top view of the lower mold of the utility model.

[0018] In the figure: 1. base; 101. slide bar; 2. lower mold; 201. placement slot; 202. positioning slot; 3. clamping block; 301. movable block; 302. spring; 4. pull rod; 5. mold seat; 501. clamping slot; 6. injection slot; 7. servo motor; 701. threaded rod; 8. pressure plate; 801. injection hole; 9. upper mold; 901. positioning rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides an embodiment: an injection molding device for a bearing retainer, comprising a base 1, a mold base 5, a pressing plate 8 and an upper mold 9, the two sides of the top of the base 1 are fixedly connected with slide bars 101, the middle position of the top of the base 1 is fixedly connected with a lower mold 2, and the interior of the lower mold 2 can complete the placement of the mold base 5;

[0021] A placement groove 201 is provided in the middle position of the top of the lower mold 2, and positioning grooves 202 are provided on both sides of the top of the lower mold 2. Blocks 3 are connected to both sides of the placement groove 201. The placement groove 201 and the block 3 are movably connected. A movable block 301 is fixedly connected to one side of the block 3. A spring 302 is fixedly connected to one side of the movable block 301. A pull rod 4 is fixedly connected to the middle position of one side of the movable block 301. The block 3 is subjected to a force from top to bottom, and the spring 302 can be squeezed through the movable block 301. At the same time, the block 3 can be retracted into the lower mold 2. When the force is removed from the block 3, the movable block 301 can push the block 3 out of the lower mold 2 due to the reaction force of the spring 302 being squeezed.

[0022] The mold base 5 is movably connected inside the placement groove 201, and the middle positions of the two sides of the mold base 5 are provided with a clamping groove 501, and the clamping block 3 is movably connected inside the clamping groove 501. The top of the mold base 5 is provided with an injection groove 6. The injection groove 6 provided at the top of the mold base 5 can perform the injection molding of the bearing retainer. At the same time, when the mold base 5 is inserted into the placement groove 201 at the top of the lower mold 2, the clamping block 3 movably connected in the placement groove 201 is inserted into the clamping groove 501 on the mold base 5, so that the installation of the mold base 5 in the lower mold 2 can be completed;

[0023] A servo motor 7 is installed in the middle position of one side inside the base 1, and a threaded rod 701 is installed at the output shaft end of the servo motor 7. A pressing plate 8 is provided on the external connection of the slide bar 101. The slide bar 101 and the pressing plate 8 are in sliding connection. The threaded rod 701 is threadedly connected to one side inside the pressing plate 8. When the servo motor 7 is started, the threaded rod 701 can be driven to rotate. At this time, the pressing plate 8 can be freely lifted and lowered on the threaded rod 701. At the same time, when the pressing plate 8 is lifting and lowering, the pressing plate 8 can slide on the slide bar 101. At this time, the slide bar 101 can play a stable limit work for the pressing plate 8;

[0024] An injection hole 801 is set in the middle position of the top of the pressure plate 8, and the upper mold 9 is fixedly connected to the middle position of the bottom of the pressure plate 8. Positioning rods 901 are fixedly connected to the two sides of the bottom of the upper mold 9. The injection hole 801 can input the injection material into the injection groove 6 through the upper mold 9 and perform the injection molding of the bearing retainer. At the same time, the positioning rod 901 at the bottom end of the upper mold 9 is inserted into the positioning groove 202 on the lower mold 2, so that the stable mold closing work of the lower mold 2 and the upper mold 9 can be completed.

[0025] When the embodiment of the present application is in use: the mold base 5 is placed in the placement groove 201 at the top of the lower mold 2, and the block 3 in the placement groove 201 can be inserted into the groove 501 on the mold base 5, thereby completing the position fixation of the mold base 5 inside the lower mold 2. At this time, the servo motor 7 in the base 1 can be started to drive the threaded rod 701 to rotate, and the pressure plate 8 outside the threaded rod 701 can drive the upper mold 9 to move downward. At the same time, the positioning rod 901 at the bottom end of the upper mold 9 can first be inserted into the positioning groove 202 on the lower mold 2, and the upper mold 9 can be driven to move downward through the pressure plate 8, so that the upper mold 9 and the lower mold 2 can be molded together. At this time, the external injection molding machine can perform injection molding on the injection groove 6 inside the mold base 5 through the injection hole 801 on the pressure plate 8.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An injection molding device for a bearing retainer, characterized in that , comprising a base (1), a mold base (5), a pressing plate (8) and an upper mold (9), wherein two sides of the top of the base (1) are fixedly connected with sliding rods (101), the middle position of the top of the base (1) is fixedly connected with a lower mold (2), a placement groove (201) is provided at the middle position of the top of the lower mold (2), positioning grooves (202) are provided on two sides of the top of the lower mold (2), a clamping block (3) is connected to two sides of the placement groove (201), the placement groove (201) and the clamping block (3) are movably connected, one side of the clamping block (3) is fixedly connected with a movable block (301), one side of the movable block (301) is fixedly connected with a spring (302), the middle position of one side of the movable block (301) is fixedly connected with a pull rod (4), and the mold base (5) is movably connected inside the placement groove (201).

2. The injection molding device for a bearing retainer according to claim 1, characterized in that: A clamping groove (501) is provided in the middle of both sides of the mold base (5), a clamping block (3) is movably connected inside the clamping groove (501), and an injection groove (6) is provided inside the top of the mold base (5).

3. The injection molding device for a bearing retainer according to claim 1, characterized in that: A servo motor (7) is installed at a middle position on one side inside the base (1), and a threaded rod (701) is installed at the output shaft end of the servo motor (7).

4. The injection molding device for a bearing retainer according to claim 1, characterized in that: The sliding rod (101) is externally connected with a pressing plate (8), and the sliding rod (101) and the pressing plate (8) are in sliding connection.

5. The injection molding device for a bearing retainer according to claim 4, characterized in that: A threaded rod (701) is threadedly connected to one side of the interior of the pressing plate (8), and an injection hole (801) is provided at the middle position of the top end of the pressing plate (8).

6. The injection molding device for a bearing retainer according to claim 4, characterized in that: An upper mold (9) is fixedly connected to the middle position of the bottom end of the pressing plate (8), and positioning rods (901) are fixedly connected to both sides of the bottom end of the upper mold (9).

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