Oil cup injection molding equipment

Abstract

The invention discloses oil cup injection molding equipment which comprises a rack, an upper mold, a lower mold and an injection molding unit and further comprises a transverse plate fixedly arranged in the rack and provided with a transverse groove, a sliding assembly and a hammering assembly are arranged at the top of the rack, the lower mold is movably installed in the transverse groove in a turnover mode through a turnover moving assembly, and the upper mold is installed at one end of the sliding assembly through a lifting air cylinder. In daily use, by the adoption of the technical scheme, when the mold cavity of the lower mold faces upwards, the lower mold is located in the end of the transverse groove below the sliding assembly, at the moment, the injection molding unit is aligned with the lower mold, molten materials are injected into the mold cavity of the lower mold, and then the sliding assembly acts; the upper die moves to the position above the lower die, then the upper die descends to be combined with the lower die, after the lower die cools materials to be formed, the upper die ascends, the overturning moving assembly controls the lower die to move towards the other end of the transverse groove and overturn at the same time, the die cavity faces downwards, the bottom faces upwards and is aligned with the hammering assembly, the hammering assembly acts to hammer the bottom of the lower die, and an oil cup rough blank in the die cavity of the lower die is discharged.

Description

Technical Field

[0001] The present invention relates to the field of oil cup manufacturing, and particularly to an oil cup injection molding device. Background Art

[0002] An oil cup is a lubrication device used in a hydraulic system, usually installed at both ends of an oil cylinder, so that lubricating oil can enter the cylinder block of the oil cylinder through the oil cup, and then lubricate it. During production, in order to integrally form the oil cup, an injection molding machine is often used to heat the raw material to a molten state, and then inject it into a molding die to obtain the required shape by pressurization. For example:

[0003] A Chinese utility model patent for an oil cup injection molding machine with the publication number CN220864582U includes a base, a liftable upper mold, a liftable lower mold, a feeding bin, a turntable and other structures. It realizes the purpose of saving the feeding time and shortening the action time of the driving parts through a servo motor 1, a turntable, a double-headed screw, a servo motor 2, a slider, a push plate 1 and a hydraulic rod 1, so as to improve the processing efficiency. And the formed part can be ejected by an ejector rod, so that it is convenient for workers to take away the formed part. However, its existing defect is:

[0004] It is necessary to manually take away the formed part, and it cannot perform fully automatic continuous injection molding operations, and the working efficiency needs to be improved. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art.

[0006] The present application provides an oil cup injection molding device, which includes a frame, an upper mold, a lower mold and an injection molding unit. It also includes a cross plate with a transverse groove fixed inside the frame. A sliding component and a hammering component are provided above both ends of the transverse groove at the top of the frame. The sliding component and the hammering component are respectively located above both ends of the transverse groove. The lower mold is reversibly and movably installed in the transverse groove through a flipping and moving component. The upper mold is installed at one end of the sliding component through a lifting cylinder, and an injection molding unit is provided at the other end of the sliding component;

[0007] Wherein, the sliding stroke of the sliding component is perpendicular to the extending direction of the transverse groove.

[0008] The sliding component includes a chute provided at the top of the frame. A slide plate driven by a longitudinal movement cylinder is slidably installed in the chute. The lifting cylinder is installed at one end of the slide plate, and the injection molding unit is installed at the other end of the slide plate.

[0009] The sliding component further includes a pair of grooves provided on the inner walls of the opposite sides of the chute. The opposite side walls of the slide plate are slidably matched with the corresponding grooves through sliders.

[0010] The hammer assembly includes a hammer box fixed on the top of the frame, a hammer rod is arranged in the hammer box, the upper end of the hammer rod is elastically connected to the top of the hammer box through an elastic unit, and the lower end penetrates into the frame. The hammer box is also provided with a toggle unit for toggling the hammer rod upward.

[0011] The elastic unit includes a floating hole arranged at the top of the hammer box, a connecting rod slidably installed in the floating hole, circular rings are inherently provided on the peripheral walls of the upper and lower ends of the connecting rod, an energy storage spring is sleeved on the peripheral wall, the upper end of the energy storage spring abuts against the inner wall of the top of the hammer box, and the lower end abuts against the upper surface of the lower circular ring.

[0012] A spline is arranged on the inner wall of the floating hole, and the spline is slidably matched with the peripheral wall of the connecting rod through a spline groove.

[0013] The toggle unit includes a dial installed in the hammer box through a motor rotation, a toggle rod is fixedly arranged at an eccentric position of the dial surface facing the hammer rod, and a toggle edge is arranged on the peripheral wall of the lower ring, and the outer end of the toggle edge slides and rubs with the surface of the ring.

[0014] The flipping and moving assembly includes rotating shafts symmetrically fixed on the peripheral wall of the lower mold, gears are fixed on each rotating shaft, racks are provided on the top surface of the horizontal plate and on both sides of the horizontal groove, each gear is meshed with each rack, a U-shaped frame driven by a transverse cylinder is installed on the top surface of the horizontal plate, and the outer ends of each rotating shaft are rotatably connected to the two side plates of the U-shaped frame.

[0015] The lower mold includes a main body that passes through from top to bottom, a fixed sleeve fixed at the bottom of the main body, and a blocking block floatingly installed in the fixed sleeve. The top surface of the blocking block is slidably matched with the lower end of the fixed sleeve through an annular groove. A reset spring is sleeved on the outer peripheral wall of the fixed sleeve. The top end of the reset spring abuts against the bottom surface of the main body, and the bottom end abuts against the top surface of the blocking block. A number of limiting parts are provided between the blocking block and the fixed sleeve.

[0016] The limiting member comprises a vertical groove arranged on the outer peripheral wall of the blocking block and connected to the annular groove, a screw hole arranged on the peripheral wall of the lower end of the fixing sleeve, and a bolt passing through the vertical groove and connected to the screw hole by thread.

[0017] The beneficial effects of the present invention are as follows:

[0018] When the cavity of the lower mold is facing upward, it is located in the end of the transverse groove below the sliding assembly. At this time, the injection unit is aligned with the lower mold and the molten material is injected into the cavity of the lower mold. Then the sliding assembly is activated to move the upper mold to the top of the lower mold and then the upper mold descends and closes with the lower mold. After the lower mold cools and the material is formed, the upper mold rises, and the flip moving assembly controls the lower mold to move to the other end of the transverse groove and flips it at the same time, so that the cavity is facing downward and the bottom is facing upward and aligned with the hammer assembly. The hammer assembly is activated to hammer the bottom of the lower mold to unload the rough oil cup in the cavity of the lower mold, and then the components are reset. Repeating the above process can perform continuous injection-molding-unloading. The personnel only need to pay attention to whether there is raw material inside the injection unit and whether it is operating normally, which can effectively improve the production efficiency of the oil cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the oil cup injection molding device in the embodiment of the present application;

[0020] Figure 2 This is a top view of the oil cup injection molding device in the embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the oil cup injection molding equipment in the embodiment of the present application;

[0022] Figure 4 This is a schematic diagram of the structure of the toggle unit in the embodiment of the present application;

[0023] Figure 5 This is a schematic diagram of the lower mold structure in the embodiment of the present application.

[0024] Reference numerals

[0025] 1-frame, 2-upper die, 3-lower die, 31-main body, 32-fixed sleeve, 33-block, 34-ring groove, 35-limiting piece, 351-vertical groove, 352-screw hole, 353-bolt, 36-reset spring, 4-injection unit, 5-horizontal groove, 6-horizontal plate, 7-sliding assembly, 71-sliding groove, 72-longitudinal cylinder, 73-slide plate, 74-groove, 75-sliding block, 8-hammering assembly, 81-hammering box, 82- Hammer rod, 83-elastic unit, 831-floating hole, 832-connecting rod, 833-ring, 834-energy storage spring, 835-spline, 836-spline groove, 84-toggle unit, 841-motor, 842-dial, 843-dial rod, 844-dial edge, 9-flip moving assembly, 91-rotating shaft, 92-gear, 93-rack, 94-transverse cylinder, 95-U-frame, 951-side plate, 96-pressure beam. DETAILED DESCRIPTION

[0026] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0027] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means that the associated objects before and after are in an "or" relationship.

[0028] Next, in conjunction with the accompanying drawings, the oil cup injection molding equipment provided by the embodiments of the present application will be described in detail through specific embodiments and their application scenarios.

[0029] Embodiment 1:

[0030] As Figures 1 to 5 shown, the embodiment of the present application provides an oil cup injection molding equipment, including a frame 1, an upper mold 2, a lower mold 3 and an injection molding unit 4. It further includes a cross plate 6 with a cross groove 5 fixed in the frame 1. A sliding component 7 and a hammering component 8 are provided at the top of the frame 1. The sliding component 7 and the hammering component 8 are respectively located above both ends of the cross groove 5. The lower mold 3 is reversibly and movably installed in the cross groove 5 through a flipping and moving component 9. The upper mold 2 is installed at one end of the sliding component 7 through a lifting cylinder, and the injection molding unit 4 is provided at the other end of the sliding component 7;

[0031] Among them, the sliding stroke of the sliding component 7 is perpendicular to the extending direction of the cross groove 5.

[0032] Furthermore, the sliding component 7 includes a chute 71 provided at the top of the frame 1. A slide plate 73 driven by a longitudinal movement cylinder 72 is slidably installed in the chute 71. The lifting cylinder is installed at one end of the slide plate 73, and the injection molding unit 4 is installed at the other end of the slide plate 73.

[0033] Furthermore, the sliding component 7 further includes a pair of grooves 74 provided on the inner walls of the opposite sides of the chute 71. The opposite side walls of the slide plate 73 are slidably matched with the corresponding grooves 74 through sliders 75.

[0034] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when the mold cavity of the lower mold 3 faces upward, it is located in the end of the transverse groove 5 below the sliding assembly 7. At this time, the injection unit 4 is aligned with the lower mold 3 and the molten material is injected into the mold cavity of the lower mold 3. Then the piston end of the longitudinal cylinder 72 extends to push the slide plate 73 to slide in the slide groove 71, so that the upper mold 2 moves to above the lower mold 3. Then the longitudinal cylinder 72 stops, the lifting cylinder is actuated, and the piston end extends to control the upper mold 2 to descend and close the mold with the lower mold 3. After the lower mold 3 cools and the material is formed, the upper mold 2 rises, and the flip moving assembly 9 controls the lower mold 3 to move to the other end of the transverse groove 5 and flip it at the same time, so that the mold cavity faces downward and the bottom The hammer assembly 8 is aimed upward and hammered on the bottom of the lower mold 3 to discharge the rough oil cup in the cavity of the lower mold 3. Then the hammer unit is reset and the flip moving assembly 9 controls the lower mold 3 to move to the bottom of the sliding assembly 7 and flip it at the same time. When the lower mold 3 moves to the bottom of the sliding assembly 7, the cavity is facing upward. Then the piston end of the longitudinal cylinder 72 retracts and pushes the slide 73 to slide in the slide groove 71, so that the injection unit 4 moves to the top of the lower mold 3, completing a process of injection-molding-discharging. Automatic continuous production can be achieved by repeating the process through the control system. Workers only need to pay attention to whether there is enough raw material in the injection unit 4.

[0035] Embodiment 2:

[0036] like Figures 1 to 5 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the hammer assembly 8 includes a hammer box 81 fixed on the top of the frame 1, a hammer rod 82 is provided in the hammer box 81, the upper end of the hammer rod 82 is elastically connected to the top of the hammer box 81 through an elastic unit 83, and the lower end penetrates into the frame 1, and a toggle unit 84 is also provided in the hammer box 81 for toggle the hammer rod 82 upward.

[0037] Furthermore, the elastic unit 83 includes a floating hole 831 arranged at the top of the hammer box 81, a connecting rod 832 slidably installed in the floating hole 831, and circular rings 833 are inherently provided on the peripheral walls of the upper and lower ends of the connecting rod 832. An energy storage spring 834 is sleeved on the peripheral wall. The upper end of the energy storage spring 834 abuts against the inner wall of the top of the hammer box 81, and the lower end abuts against the upper surface of the lower circular ring 833.

[0038] Furthermore, a spline 835 is provided on the inner wall of the floating hole 831 , and the spline 835 is slidably matched with the peripheral wall of the connecting rod 832 via a spline groove 836 .

[0039] Furthermore, the toggle unit 84 includes a dial 842 installed in the hammer box 81 and rotatable by a motor 841. A toggle rod 843 is fixedly arranged at an eccentric position on the surface of the dial 842 facing the hammer rod 82. A toggle edge 844 is arranged on the peripheral wall of the circular ring 833 below. The outer end of the toggle edge 844 slides and rubs against the surface of the circular ring 833.

[0040] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the motor 841 drives the dial 842 to rotate, causing the lever 843 to rotate clockwise. The lever 843 first enters under the dial edge 844, and then rises with the rotation of the dial 842, and then cooperates with the dial edge 844 to push the lower ring 833 and the connecting rod 832 and the hammer rod 82 to rise, and the energy storage spring 834 is gradually compressed and shortened until the lever 843 moves to the highest point. At this time, the lever 843 is located at one end edge of the dial edge 844 and is in a state of being separated from the dial edge 844. The motor 841 stops running and waits for the internally loaded When the lower mold 3 of the oil cup is flipped to the point where the opening faces downward and the bottom is aligned with the hammer rod 82, the motor 841 rotates to disengage the lever 843 from the lever edge 844, and the energy storage spring 834 releases its elastic potential energy to push the connecting rod 832 and the hammer rod 82 to quickly descend and hammer the bottom of the lower mold 3, so that the oil cup in the cavity is loosened and falls, and the oil cup falls from the transverse groove 5 to the bottom of the frame 1. A container can be set at the bottom of the frame 1 to accommodate the fallen oil cup, and then the motor 841 continues to rotate, so that the lever 843 moves the lever edge 844, so that the connecting rod 832 and the hammer rod 82 rise and reset, and the energy storage spring 834 is compressed to store elastic potential energy.

[0041] Embodiment 3:

[0042] like Figures 1 to 5 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the flipping and moving assembly 9 includes rotating shafts 91 symmetrically fixed on the peripheral wall of the lower mold 3, and gears 92 are fixed on each rotating shaft 91. Racks 93 are provided on the top surface of the transverse plate 6 and on both sides of the transverse groove 5, and each gear 92 is meshed with each rack 93. A U-shaped frame 95 driven by a transverse cylinder 94 is installed on the top surface of the transverse plate 6, and the outer ends of each rotating shaft 91 are rotatably connected to the two side plates 951 of the U-shaped frame 95.

[0043] Furthermore, the flipping and moving assembly 9 also includes a pair of pressure beams 96 fixedly arranged in the frame 1 , each pressure beam 96 is parallel to the transverse groove 5 and the bottom surface thereof slides and rubs against the top surface of the two side plates 951 of the U-shaped frame 95 .

[0044] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when the lower mold 3 moves to the other end of the transverse groove 5 when needed, the transverse cylinder 94 drives the U-shaped frame 95 to slide between the top surface of the transverse plate 6 and a pair of pressure beams 96, and the moving U-shaped frame 95 drives a pair of rotating shafts 91 together with the lower mold 3 to move along the extension direction of the transverse groove 5. At the same time, each gear 92 is engaged with the rack 93 to drive the lower mold 3 to flip during the movement. Each rotating shaft 91 is rotatably matched with the side plate 951 of the U-shaped frame 95, and each U-shaped frame 95 is provided with a hole on the side plate 951 that cooperates with the rotating shaft 91, and a bearing can also be arranged between the hole and the rotating shaft 91 to reduce friction loss and noise.

[0045] Embodiment 4:

[0046] As shown Figures 1 to 5 In this embodiment, in addition to including the structural features of the foregoing embodiment, the lower die 3 includes a main body 31 that penetrates up and down, a fixed sleeve 32 fixedly provided at the bottom of the main body 31, and a plug 33 floatingly installed in the fixed sleeve 32. The top surface of the plug 33 is slidably matched with the lower end of the fixed sleeve 32 through an annular groove 34. A return spring 36 is sleeved on the outer peripheral wall of the fixed sleeve 32. The top end of the return spring 36 abuts against the bottom surface of the main body 31, and the bottom end abuts against the top surface of the plug 33. A plurality of limiting members 35 are provided between the plug 33 and the fixed sleeve 32.

[0047] Furthermore, the limiting member 35 includes a vertical groove 351 provided on the outer peripheral wall of the plug 33 and communicating with the annular groove 34, a threaded hole 352 provided on the peripheral wall of the lower end of the fixed sleeve 32, and a bolt 353 passing through the vertical groove 351 and threadedly connected to the threaded hole 352.

[0048] In this embodiment of the present application, due to the above structure, when the bottom of the lower die 3 faces upward, the plug 33 is located directly below the hammering rod 82. When the hammering rod 82 falls, it hammers the plug 33, causing the plug 33 to move into the fixed sleeve 32, quickly pushing out the already formed oil cup in the cavity formed between the fixed sleeve 32 and the main body 31. At the same time, the return spring 36 absorbs part of the impact and shortens to store elastic potential energy, avoiding excessive impact force from damaging the lower die 3. When the hammering rod 82 rises, the return spring 36 releases the elastic potential energy to make the plug 33 slide out of the fixed sleeve 32. During this process, the bottom of the fixed sleeve 32 is always located in the annular groove 34. As the plug 33 floats, the bolt 353 also slides in the corresponding vertical groove 351 to prevent the plug 33 from detaching from the fixed sleeve 32.

[0049] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0050] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. An oil cup injection molding device, comprising a frame, an upper mold, a lower mold and an injection molding unit, characterized in that: It also includes a horizontal plate with a horizontal groove fixed in the frame, a sliding assembly and a hammer assembly are provided on the top of the frame, the sliding assembly and the hammer assembly are respectively located above the two ends of the horizontal groove, the lower mold is flippably installed in the horizontal groove through a flip moving assembly, the upper mold is installed at one end of the sliding assembly through a lifting cylinder, and an injection unit is provided at the other end of the sliding assembly; Wherein, the sliding stroke of the sliding assembly is perpendicular to the extending direction of the transverse groove.

2. The oil cup injection molding equipment according to claim 1, characterized in that: The sliding assembly comprises a slide groove arranged on the top of the frame, a slide plate driven by a longitudinal cylinder is slidably installed in the slide groove, the lifting cylinder is installed at one end of the slide plate, and the injection unit is installed at the other end of the slide plate.

3. The oil cup injection molding equipment according to claim 2, characterized in that: The sliding assembly also includes a pair of grooves arranged on the inner walls on the opposite sides of the sliding groove, and the opposite side walls of the sliding plate are slidably matched with the corresponding grooves through the sliding blocks.

4. The oil cup injection molding equipment according to claim 1, characterized in that: The hammer assembly includes a hammer box fixed on the top of the frame, a hammer rod is arranged in the hammer box, the upper end of the hammer rod is elastically connected to the top of the hammer box through an elastic unit, and the lower end penetrates into the frame. The hammer box is also provided with a toggle unit for toggling the hammer rod upward.

5. The oil cup injection molding equipment according to claim 4, characterized in that: The elastic unit includes a floating hole arranged at the top of the hammer box, a connecting rod slidably installed in the floating hole, circular rings are inherently provided on the peripheral walls of the upper and lower ends of the connecting rod, an energy storage spring is sleeved on the peripheral wall, the upper end of the energy storage spring abuts against the inner wall of the top of the hammer box, and the lower end abuts against the upper surface of the lower circular ring.

6. The oil cup injection molding equipment according to claim 5, characterized in that: A spline is arranged on the inner wall of the floating hole, and the spline is slidably matched with the peripheral wall of the connecting rod through a spline groove.

7. The oil cup injection molding equipment according to claim 5, characterized in that: The toggle unit includes a dial installed in the hammer box through a motor rotation, a toggle rod is fixedly arranged at an eccentric position of the dial surface facing the hammer rod, and a toggle edge is arranged on the peripheral wall of the lower ring, and the outer end of the toggle edge slides and rubs with the surface of the ring.

8. The oil cup injection molding equipment according to claim 1, characterized in that: The flipping and moving assembly includes rotating shafts symmetrically fixed on the peripheral wall of the lower mold, gears are fixed on each rotating shaft, racks are provided on the top surface of the horizontal plate and on both sides of the horizontal groove, each gear is meshed with each rack, a U-shaped frame driven by a transverse cylinder is installed on the top surface of the horizontal plate, and the outer ends of each rotating shaft are rotatably connected to the two side plates of the U-shaped frame.

9. The oil cup injection molding equipment according to claim 1, characterized in that: The lower mold includes a main body that passes through from top to bottom, a fixed sleeve fixed at the bottom of the main body, and a blocking block floatingly installed in the fixed sleeve. The top surface of the blocking block is slidably matched with the lower end of the fixed sleeve through an annular groove. A reset spring is sleeved on the outer peripheral wall of the fixed sleeve. The top end of the reset spring abuts against the bottom surface of the main body, and the bottom end abuts against the top surface of the blocking block. A number of limiting parts are provided between the blocking block and the fixed sleeve.

10. The oil cup injection molding equipment according to claim 9, characterized in that: The limiting member comprises a vertical groove arranged on the outer peripheral wall of the blocking block and connected to the annular groove, a screw hole arranged on the peripheral wall of the lower end of the fixing sleeve, and a bolt passing through the vertical groove and connected to the screw hole by thread.

Images