Bearing injection mold

Abstract

The utility model relates to the field of production and processing, and discloses a bearing injection mold which comprises a base, a cover plate is hinged to the left side of the top end of the base, an injection molding groove is formed in the middle of the top end of the base, an outer mold is arranged in the injection molding groove, a threaded groove is formed in the middle of the base, and the top end of the threaded groove is communicated with the injection molding groove. A threaded groove is formed in the top end of the cover plate, an inner mold is in threaded connection with the inner wall of the threaded groove, an injection molding hole is formed in the top end of the cover plate, a feeding mechanism is arranged at the top end of the cover plate and comprises a feeding shell, the bottom end of the feeding shell is fixedly connected with the top end of the cover plate, and a discharging hole is formed in the bottom end of the feeding shell. According to the injection molding machine, the feeding mechanism and the discharging mechanism are matched for use, so that after the injection molding amount is enough, molten plastic can smoothly pass through the injection molding hole and the discharging hole under the action of gravity and then enter the injection molding groove, and the effects that feeding is convenient, and overflowing is not prone to occurring in the feeding process are achieved.

Description

Technical Field

[0001] The utility model relates to the field of production and processing, in particular to a bearing injection mold. Background Art

[0002] Bearings are engineering equipment used to support rotating mechanical parts so that they can rotate on the shaft. Bearings play a vital role in various mechanical systems, but they are often not directly formed during the bearing processing process and often require subsequent processing, which affects the work efficiency of the staff.

[0003] After searching, Chinese patent announcement number: CN215472753U discloses an injection mold for bearing production, including a workbench, and a mold base is arranged on the upper side of the workbench. When the above application document is in use, the staff embeds several limit blocks on the first mold frame into the limit groove and fixes them with screws. At the same time, the fixing screw is screwed into the threaded groove, and then several mold cover fixing holes on the mold cover are aligned with the cover fixing rod on the first mold frame to fix it. The molten plastic is evenly injected through several injection holes and cooled to form a ring channel of the bearing accessory, which greatly facilitates the operation of the staff.

[0004] Although the above application documents can improve the effect of not being able to be directly molded, the following problems still exist in actual use: the injection hole is small, and it may be troublesome to directly inject molten plastic into the injection hole, and it is easy to overflow from the side. Therefore, a bearing injection mold is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a bearing injection mold, aiming to improve the problem of inconvenience in injecting molten plastic in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bearing injection mold, including a base, a cover plate hinged on the left side of the top end of the base, an injection groove is opened in the middle of the top end of the base, an outer mold is arranged inside the injection groove, a threaded groove is opened in the middle of the base, the top end of the threaded groove is connected with the injection groove, the inner wall of the threaded groove is threadedly connected with the inner mold, an injection hole is opened at the top end of the cover plate, a feeding mechanism is arranged at the top end of the cover plate, the feeding mechanism includes a feeding shell, the bottom end of the feeding shell is fixedly connected to the top end of the cover plate, the bottom end of the feeding shell is opened with a discharge hole, the inner wall of the cover plate at the right end of the feeding mechanism is provided with a discharge mechanism, and the discharge mechanism includes a rotating rod, and the rotating rod passes through and is rotatably connected to the inner wall of the cover plate.

[0007] As a further description of the above technical solution:

[0008] A mounting groove is provided at the bottom end of the feeding shell, a baffle is slidably connected to the inner wall of the mounting groove, a protection component is arranged inside the baffle, and the protection component includes a movable groove, the movable groove is provided on the upper surface of the baffle, and a through hole penetrating the inner wall of the baffle is provided on the upper surface of the baffle.

[0009] As a further description of the above technical solution:

[0010] The right end of the baffle is fixedly connected with a pull rod, and the right end of the baffle is elastically connected to the inner wall of the mounting groove through a spring.

[0011] As a further description of the above technical solution:

[0012] The inner wall of the movable groove is slidably connected with a push block, and the bottom end of the push block is elastically connected to the inner wall of the movable groove through a second spring.

[0013] As a further description of the above technical solution:

[0014] The top end of the rotating rod is fixedly connected with a shielding plate, the bottom end of the rotating rod is fixedly connected with a gear, and one end of the pull rod close to the gear is fixedly connected with a rack, and the rack is meshed with the gear.

[0015] As a further description of the above technical solution:

[0016] A discharge hole is opened at the right end of the feeding shell, the shielding plate is arranged inside the discharge hole, and a connecting pipe is fixedly connected to the right end of the feeding shell outside the discharge hole, and a threaded interface is arranged on the outer wall of the connecting pipe.

[0017] As a further description of the above technical solution:

[0018] The diameters of the injection hole, the discharge hole, the through hole and the movable groove are all consistent, and the horizontal distance between the movable groove and the adjacent through hole is consistent with the movable distance of the baffle.

[0019] As a further description of the above technical solution:

[0020] The left end of the push block is provided with an inclined cut angle, and the lowest point of the cut angle of the push block is always lower than the highest point of the installation slot.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by cooperating with the feeding mechanism and the discharging mechanism, after the injection amount is sufficient, the molten plastic can smoothly pass through the injection hole and the discharging hole under the action of gravity and enter the injection groove, and the remaining molten plastic can be smoothly discharged after the injection amount is sufficient, so as to achieve the effect of convenient feeding and not easy overflow during the feeding process.

[0023] 2. In the utility model, by using the feeding mechanism in conjunction with the protective component, after a sufficient amount of plastic is injected, during the discharge process, the protective component can ensure that the molten plastic is not easily retained in the injection hole, thereby ensuring that the injection hole is not easily blocked when used again. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the overall structure of the utility model;

[0026] Figure 3 For the utility model Figure 2 A magnified schematic diagram of the three-dimensional structure of part A;

[0027] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the overall structure of the utility model;

[0028] Figure 5 For the utility model Figure 4 Schematic diagram of the enlarged three-dimensional structure of part B.

[0029] Legend:

[0030] 1. Base; 2. Cover plate; 3. Injection groove; 4. Outer mold; 5. Thread groove; 6. Inner mold; 7. Injection hole; 8. Feeding mechanism; 9. Discharging mechanism; 10. Discharging hole; 11. Connecting pipe; 81. Feeding shell; 82. Discharging hole; 83. Mounting groove; 84. Baffle; 85. Through hole; 86. Pull rod; 87. Spring 1; 88. Protection component; 881. Moving groove; 882. Push block; 883. Spring 2; 91. Turn rod; 92. Shielding plate; 93. Gear; 94. Rack. DETAILED DESCRIPTION

[0031] 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.

[0032] Reference Figure 1 , Figure 2 and Figure 4The utility model provides an embodiment: a bearing injection mold, including a base 1, a cover plate 2 is hinged on the left side of the top of the base 1, and when the cover plate 2 is in a horizontal state, it contacts the top of the base 1, an injection groove 3 is opened in the middle of the top of the base 1, and an outer mold 4 is arranged inside the injection groove 3. The height of the outer mold 4 is consistent with the depth of the injection groove 3, and the outer diameter of the outer mold 4 is consistent with the inner diameter of the injection groove 3. A thread groove 5 is opened in the middle of the base 1, and the top of the thread groove 5 is connected to the injection groove 3. The inner wall of the thread groove 5 is threadedly connected with an inner mold 6, and the height of the inner mold 6 is consistent with the sum of the depth of the thread groove 5 plus the injection groove 3. An injection hole 7 is opened at the top of the cover plate 2.

[0033] Reference Figure 2 - Figure 4 A feeding mechanism 8 is provided at the top of the cover plate 2, and the feeding mechanism 8 includes a feeding shell 81. The bottom end of the feeding shell 81 is fixedly connected to the top of the cover plate 2, and a discharge hole 10 for discharging excess molten plastic is provided at the right end of the feeding shell 81. A connecting pipe 11 is fixedly connected to the right end of the feeding shell 81 in the outer area of ​​the discharge hole 10. A threaded interface is provided on the outer wall of the connecting pipe 11. Through the setting of the threaded interface, the connecting pipe 11 can be connected to the gas pipeline to facilitate the discharge of the molten plastic. A discharge hole 82 is provided at the bottom end of the feeding shell 81, and a mounting groove 83 is provided at the bottom end of the feeding shell 81. The top view shape of the mounting groove 83 is square, and the inner wall of the mounting groove 83 is slidably connected with a baffle 84.

[0034] Reference Figure 2 and Figure 3 A protection component 88 is provided inside the baffle 84, and the protection component 88 includes a moving groove 881. The top view shape of the moving groove 881 is consistent with the injection hole 7. The moving groove 881 is opened on the upper surface of the baffle 84, and the inner wall of the moving groove 881 is slidably connected with a push block 882. The left end of the push block 882 is provided with an inclined cut angle. Through the setting of the cut angle, it is ensured that when the push block 882 is forced to move to the left, the push block 882 can be moved downward through the cut angle, and the lowest point of the cut angle of the push block 882 is always lower than the highest point of the installation groove 83. The bottom end of the push block 882 is elastically connected to the inner wall of the moving groove 881 through a spring 883, one end of the spring 883 is fixedly connected to the bottom end of the push block 882, and the other end of the spring 883 is fixedly connected to the inner wall of the moving groove 881.

[0035] Reference Figure 2 - Figure 4The upper surface of the baffle 84 is provided with a through hole 85 that penetrates the inner wall of the baffle 84. The diameters of the injection hole 7, the discharge hole 82, the through hole 85 and the movable groove 881 are all consistent. The consistent diameter setting ensures that the molten plastic will not be blocked due to different diameters. The horizontal distance between the movable groove 881 and the adjacent through hole 85 is consistent with the movable distance of the baffle 84. The consistent distance ensures that the baffle 84 can only easily reach two states during use: the movable groove 881 and the injection hole 7 are in the same vertical plane and the through hole 85 and the injection hole 7 are in the same vertical plane. The right end of the baffle 84 is fixedly connected with a pull rod 86, and the pull rod 86 penetrates the inner wall of the feeding shell 81. The right end of the baffle 84 is elastically connected to the inner wall of the mounting groove 83 by a spring 87. One end of the spring 87 is fixedly connected to the right end of the baffle 84, and the other end of the spring 87 is fixedly connected to the inner wall of the mounting groove 83.

[0036] Reference Figure 4 - Figure 5 A discharging mechanism 9 is provided on the inner wall of the cover plate 2 at the right end of the feeding mechanism 8. The discharging mechanism 9 includes a rotating rod 91, which penetrates and is rotatably connected to the inner wall of the cover plate 2. A shielding plate 92 is fixedly connected to the top of the rotating rod 91. The shielding plate 92 is arranged inside the discharging hole 10. The shielding plate 92 is circular in shape, and the outer wall of the shielding plate 92 matches the shape of the inner wall of the discharging hole 10. A gear 93 is fixedly connected to the bottom end of the rotating rod 91, and a rack 94 is fixedly connected to the end of the pull rod 86 close to the gear 93. The rack 94 is meshed with the gear 93, and the rack 94 can drive the rack 94 to rotate a quarter of a turn at most within the movable range.

[0037] Working principle: When in use, the staff first places the outer mold 4 inside the injection groove 3, and then rotates the inner mold 6 through the thread groove 5 until the bottom of the inner mold 6 completely enters the thread groove 5. At this time, the staff closes the cover plate 2. Since the depth of the injection groove 3 is consistent with that of the outer mold 4 and is consistent with the depth of the inner mold 6 without the thread groove 5, the bottom of the cover plate 2 is in contact with the top of the inner mold 6 and the outer mold 4 at this time, so the inner mold 6 and the outer mold 4 are not easy to displace at this time.

[0038] After the fixation is completed, the staff pours molten plastic into the feeding shell 81. When a large amount of plastic accumulates, the plastic passes through the injection hole 7 and the through hole 85 under the action of gravity, enters the injection groove 3 from the feeding shell 81, and is transformed into the required bearing injection shape under the joint action of the annular setting of the inner mold 6 and the outer mold 4.

[0039] When the added molten plastic is sufficient for processing, the staff pulls the pull rod 86 to the right. When the pull rod 86 is pulled outward, the pull rod 86 drives the baffle 84 to move to the right, so that the through hole 85 and the injection hole 7 are not in the same vertical position. Therefore, the molten plastic cannot fall into the injection groove 3 at this time.

[0040] In the process of pulling the pull rod 86, the pull rod 86 drives the rack 94 to move to the right. Since the rack 94 is meshed with the gear 93, the rack 94 drives the gear 93 to rotate during the movement, so the rotating rod 91 is driven to rotate through the gear 93, and the baffle plate 92 is driven to rotate through the rotating rod 91, so that the baffle plate 92 is rotated to a state that allows the molten plastic to leave through the discharge hole 10.

[0041] When the molten plastic is discharged, the staff can directly receive the discharged molten plastic through the connecting pipe 11, or connect other pipes through the threaded arrangement on the outer wall of the connecting pipe 11, making it more convenient to receive the materials.

[0042] After the baffle 84 moves to the rightmost end, the movable groove 881 just moves to the position in the same vertical direction as the injection hole 7. At this time, the push block 882 moves upward under the push of the spring 883. Therefore, the plastic inside the injection hole 7 above the baffle 84 can be pushed by the push block 882 to be inside the feeding shell 81, and it is not easy to enter the injection hole 7, ensuring that the discharge is more complete and it is not easy for the plastic to block the injection hole 7 after cooling.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bearing injection mold, comprising a base (1), characterized in that: A cover plate (2) is hingedly connected to the left side of the top of the base (1); an injection molding groove (3) is provided in the middle of the top of the base (1); an outer mold (4) is arranged inside the injection molding groove (3); a thread groove (5) is provided in the middle of the base (1); the top of the thread groove (5) is connected to the injection molding groove (3); the inner wall of the thread groove (5) is threadedly connected to the inner mold (6); an injection molding hole (7) is provided at the top of the cover plate (2); A feeding mechanism (8) is provided at the top end, the feeding mechanism (8) comprising a feeding shell (81), the bottom end of the feeding shell (81) being fixedly connected to the top end of the cover plate (2), the bottom end of the feeding shell (81) being provided with a discharge hole (82), and a discharge mechanism (9) is provided on the inner wall of the cover plate (2) at the right end of the feeding mechanism (8), the discharge mechanism (9) comprising a rotating rod (91), the rotating rod (91) penetrating through and being rotatably connected to the inner wall of the cover plate (2).

2. A bearing injection mold according to claim 1, characterized in that: A mounting groove (83) is provided at the bottom end of the feeding shell (81); a baffle (84) is slidably connected to the inner wall of the mounting groove (83); a protection component (88) is provided inside the baffle (84); the protection component (88) comprises a movable groove (881); the movable groove (881) is provided on the upper surface of the baffle (84); and a through hole (85) penetrating the inner wall of the baffle (84) is provided on the upper surface of the baffle (84).

3. A bearing injection mold according to claim 2, characterized in that: The right end of the baffle (84) is fixedly connected to a pull rod (86), and the right end of the baffle (84) is elastically connected to the inner wall of the mounting groove (83) via a spring 1 (87).

4. A bearing injection mold according to claim 2, characterized in that: The inner wall of the movable groove (881) is slidably connected to a push block (882), and the bottom end of the push block (882) is elastically connected to the inner wall of the movable groove (881) via a second spring (883).

5. The bearing injection mold according to claim 3, characterized in that: The top end of the rotating rod (91) is fixedly connected to a shielding plate (92), the bottom end of the rotating rod (91) is fixedly connected to a gear (93), and one end of the pull rod (86) close to the gear (93) is fixedly connected to a rack (94), and the rack (94) is meshed with the gear (93).

6. A bearing injection mold according to claim 5, characterized in that: A discharge hole (10) is provided at the right end of the feeding shell (81), the shielding plate (92) is arranged inside the discharge hole (10), and a connecting pipe (11) is fixedly connected to the right end of the feeding shell (81) outside the discharge hole (10), and a threaded interface is provided on the outer wall of the connecting pipe (11).

7. A bearing injection mold according to claim 4, characterized in that: The diameters of the injection hole (7), the discharge hole (82), the through hole (85) and the movable groove (881) are all consistent, and the horizontal distance between the movable groove (881) and the adjacent through hole (85) is consistent with the movable distance of the baffle (84).

8. The bearing injection mold according to claim 4, characterized in that: The left end of the push block (882) is provided with an inclined cut angle, and the lowest point of the cut angle of the push block (882) is always lower than the highest point of the mounting groove (83).

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