An oil cup injection molding device

Abstract

The application discloses an oil cup injection molding equipment, which comprises a rack, an upper mold, a lower mold and an injection molding unit, further comprises a horizontal plate with a horizontal groove fixed in the rack, the top of the rack is provided with a sliding assembly and a hammering assembly, the lower mold is reversibly movably installed in the horizontal groove through a turnover moving assembly, the upper mold is installed at one end of the sliding assembly through a lifting cylinder, and the other end of the sliding assembly is provided with the injection molding unit. In daily use, the mold cavity of the lower mold is located in the end of the horizontal groove below the sliding assembly when the mold cavity faces upward, the injection molding unit is aligned with the lower mold at this time, the molten material is injected into the mold cavity of the lower mold, then the sliding assembly is actuated to move the upper mold above the lower mold and then the upper mold is lowered to be combined with the lower mold, after the material in the lower mold is cooled and formed, the upper mold is raised, the turnover moving assembly controls the lower mold to move to the other end of the horizontal groove while being turned over, the mold cavity faces downward and the bottom faces upward and is aligned with the hammering assembly, the hammering assembly is actuated to hammer the bottom of the lower mold, and the oil cup rough castings in the mold cavity of the lower mold are discharged.

Description

TECHNICAL FIELD

[0001] The application relates to the field of oil cup manufacturing, in particular to an oil cup injection molding equipment. BACKGROUND

[0002] The oil cup is a lubricating device for a hydraulic system, which is usually installed at both ends of an oil cylinder so that lubricating oil can enter the cylinder seat of the oil cylinder through the oil cup to lubricate the oil cylinder. In production, in order to integrally form the oil cup, an injection molding machine is usually used to heat raw materials to a molten state, and then the molten raw materials are injected into a forming mold to obtain the required shape through pressurization, for example:

[0003] The utility model discloses an oil cup injection molding machine, which comprises a base, a liftable upper mold, a liftable lower mold, a material injection bin, a rotating plate and the like. The servo motor one, the rotating plate, the double-head screw rod, the servo motor two, the sliding block, the push plate one and the hydraulic rod one are used to save the material injection time and shorten the driving part action time, so that the processing efficiency is improved. The ejector rod can eject the formed part, so that the worker can conveniently take away the formed part. However, the oil cup injection molding machine has the following defects:

[0004] The formed part needs to be manually taken away, and the full-automatic continuous injection molding operation cannot be realized, so that the working efficiency needs to be improved. SUMMARY

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

[0006] The oil cup injection molding equipment provided by the present application comprises a rack, an upper mold, a lower mold and an injection molding unit, further comprises a horizontal plate with a horizontal groove fixed in the rack, a sliding assembly and a hammering assembly are arranged on the top of the rack, the sliding assembly and the hammering assembly are respectively located above both ends of the horizontal groove, the lower mold is movably installed in the horizontal groove through a turnover moving assembly, the upper mold is installed at one end of the sliding assembly through a lifting cylinder, and the injection molding unit is arranged at the other end of the sliding assembly.

[0007] The sliding stroke of the sliding assembly is perpendicular to the extension direction of the horizontal groove.

[0008] The sliding assembly comprises a sliding groove arranged on the top of the rack, a sliding plate driven by a longitudinal moving cylinder is slidably installed in the sliding groove, the lifting cylinder is installed at one end of the sliding plate, and the injection molding unit is installed at the other end of the sliding plate.

[0009] The sliding assembly further comprises a pair of grooves arranged on the inner walls opposite to the sliding groove, and the opposite walls of the sliding plate are slidably matched with the corresponding grooves through sliding blocks.

[0010] The hammering assembly comprises a hammering box fixed on the top of the frame, a hammering rod arranged in the hammering box, the upper end of the hammering rod being elastically connected to the top of the hammering box through an elastic unit, and the lower end of the hammering rod penetrating into the frame, and a pushing unit arranged in the hammering box and used for pushing the hammering rod upward.

[0011] The elastic unit comprises a floating hole arranged on the top of the hammering box, a connecting rod slidingly arranged in the floating hole, a circular ring arranged on the peripheral wall of the upper end and the lower end of the connecting rod, and an energy storage spring sleeved on the peripheral wall, the upper end of the energy storage spring being abutted against the inner wall of the top of the hammering box, and the lower end of the energy storage spring being abutted 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 and the peripheral wall of the connecting rod are slidingly matched through a spline groove.

[0013] The pushing unit comprises a pushing disc rotatingly arranged in the hammering box through a motor, a pushing rod fixed on the eccentric position of the surface of the pushing disc facing the hammering rod, and a pushing edge arranged on the peripheral wall of the lower circular ring, and the outer end of the pushing edge is slidingly and frictionally arranged on the surface of the circular ring.

[0014] The overturning moving assembly comprises rotating shafts symmetrically fixed on the peripheral wall of the lower die, gears fixed on the rotating shafts, racks arranged on the top surface of the horizontal plate and located on both sides of the horizontal groove, the gears and the racks being engaged with each other, a U-shaped frame arranged on the top surface of the horizontal plate and driven by a horizontal moving cylinder, and the outer ends of the rotating shafts being rotatably connected to the two side plates of the U-shaped frame.

[0015] The lower die comprises a main body penetrating through the upper and lower portions, a fixed sleeve fixed on the bottom of the main body, and a blocking block floatingly arranged in the fixed sleeve, the top surface of the blocking block being slidingly matched with the lower end of the fixed sleeve through a ring groove, a reset spring being sleeved on the peripheral wall of the fixed sleeve, the top end of the reset spring being abutted against the bottom surface of the main body, the bottom end of the reset spring being abutted against the top surface of the blocking block, and a plurality of limiting members being arranged between the blocking block and the fixed sleeve.

[0016] The limiting members comprise vertical grooves arranged on the peripheral wall of the blocking block and communicating with the ring groove, screw holes arranged on the peripheral wall of the lower end of the fixed sleeve, and bolts penetrating through the vertical grooves and the screw holes and being threadedly connected.

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

[0018] When the cavity of the lower mold faces upward and is located in the end of the transverse groove below the sliding assembly, 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 actuated to move the upper mold above the lower mold, and then the upper mold is lowered to be combined with the lower mold. After the lower mold is cooled and the material is formed, the upper mold is raised, and the turnover moving assembly controls the lower mold to move to the other end of the transverse groove while being turned over, so that the cavity faces downward and the bottom faces upward and is aligned with the hammering assembly. The hammering assembly is actuated to hammer the bottom of the lower mold, so that the oil cup rough castings in the cavity of the lower mold are discharged. Then the parts are reset, and the above process is repeated to continuously perform injection-molding-discharging. The personnel only need to pay attention to whether the raw material exists in the injection unit and whether the injection unit operates normally, and the production efficiency of the oil cup can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view of the oil cup injection equipment in the embodiment of the application;

[0020] Figure 2 It is a top view of the oil cup injection equipment in the embodiment of the application;

[0021] Figure 3 It is a three-dimensional structural schematic view of the oil cup injection equipment in the embodiment of the application;

[0022] Figure 4 It is a structure schematic view of the toggle unit in the embodiment of the application;

[0023] Figure 5 It is a structure schematic view of the lower mold in the embodiment of the application.

[0024] REFERENCE NUMERALS

[0025] 1-frame, 2-upper mold, 3-lower mold, 31-main body, 32-fixed sleeve, 33-plug, 34-ring groove, 35-limiting part, 351-vertical groove, 352-screw hole, 353-screw, 36-reset spring, 4-injection unit, 5-transverse groove, 6-cross plate, 7-sliding assembly, 71-sliding groove, 72-longitudinal moving cylinder, 73-sliding plate, 74-groove, 75-sliding block, 8-hammering assembly, 81-hammering box, 82-hammering 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-toggle rod, 844-toggle edge, 9-turnover moving assembly, 91-rotation shaft, 92-gear, 93-rack, 94-transverse moving cylinder, 95-U-shaped frame, 951-side plate, 96-pressing beam. DETAILED DESCRIPTION

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly described. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art are within the scope of protection of the present application.

[0027] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way 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 generally a class and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in a "or" relationship.

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

[0029] Embodiment 1:

[0030] As shown in Figures 1 to 5 , the present application provides an oil cup injection molding equipment, which comprises a rack 1, an upper mold 2, a lower mold 3 and an injection unit 4, further comprising a horizontal plate 6 with a horizontal groove 5 fixed in the rack 1, the top of the rack 1 is provided with a sliding assembly 7 and a hammering assembly 8, the sliding assembly 7 and the hammering assembly 8 are respectively located above both ends of the horizontal groove 5, the lower mold 3 is reversibly installed in the horizontal groove 5 through a turnover moving assembly 9, the upper mold 2 is installed at one end of the sliding assembly 7 through a lifting cylinder, and the injection unit 4 is installed at the other end of the sliding assembly 7;

[0031] Among them, the sliding stroke of the sliding assembly 7 is perpendicular to the extension direction of the horizontal groove 5.

[0032] Further, the sliding assembly 7 comprises a sliding groove 71 arranged on the top of the rack 1, a sliding plate 73 driven by a longitudinal moving cylinder 72 is slidingly installed in the sliding groove 71, a lifting cylinder is installed at one end of the sliding plate 73, and the injection unit 4 is installed at the other end of the sliding plate 73.

[0033] Further, the sliding assembly 7 further comprises a pair of grooves 74 arranged on the inner walls opposite to the sliding groove 71, and the opposite walls of the sliding plate 73 are slidingly matched with the corresponding grooves 74 through sliding blocks 75.

[0034] In this embodiment of the application, due to the above-described structure, when the cavity of the lower mold 3 faces upward, it is located at 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 injects molten material into the cavity of the lower mold 3. Then, the piston end of the longitudinal transfer cylinder 72 extends and pushes the slide plate 73 to slide in the slide groove 71, so that the upper mold 2 moves above the lower mold 3. Then the longitudinal transfer cylinder 72 stops, the lifting cylinder moves, and the piston end extends to control the upper mold 2 to descend and close with the lower mold 3. After the lower mold 3 cools and the material is formed, the upper mold 2 rises, and the flipping and moving assembly 9 controls the lower mold 3 to move to the other end of the transverse groove 5 and flips, so that the cavity faces downward and the bottom... The hammer unit is aligned with the hammering component 8, which strikes the bottom of the lower mold 3, causing the oil cup blank in the mold cavity of the lower mold 3 to be discharged. Then the hammering unit is reset, and the flipping and moving component 9 controls the lower mold 3 to move downwards to the sliding component 7 while flipping. When the lower mold 3 moves below the sliding component 7, the mold cavity is facing upwards. Then the piston end of the longitudinal cylinder 72 retracts and pushes the slide plate 73 to slide in the slide groove 71, so that the injection unit 4 moves above the lower mold 3, completing one injection-molding-discharging process. By controlling the repeat of this process through the control system, automatic continuous production can be achieved. The worker only needs to pay attention to whether there is enough raw material in the injection unit 4.

[0035] Example 2:

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

[0037] Furthermore, the elastic unit 83 includes a floating hole 831 disposed on the top of the hammer box 81, a connecting rod 832 slidably installed in the floating hole 831, and a circular ring 833 fixed on the peripheral wall 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 and the peripheral wall of the connecting rod 832 are slidably engaged through a spline groove 836.

[0039] Furthermore, the actuation unit 84 includes a dial 842 rotatably mounted in the hammer box 81 via a motor 841. A lever 843 is fixedly mounted on the dial 842 at an eccentric position on the surface of the hammer rod 82. A pawl 844 is provided on the peripheral wall of the lower ring 833. The outer end of the pawl 844 slides and rubs against the surface of the ring 833.

[0040] In this embodiment of the application, due to the aforementioned structure, the motor 841 drives the dial 842 to rotate, causing the lever 843 to rotate clockwise. The lever 843 first enters below the dial edge 844, and then rises as the dial 842 rotates. This, in conjunction with the dial edge 844, pushes the lower ring 833, connecting rod 832, and hammer rod 82 upwards. The energy storage spring 834 is gradually compressed until the lever 843 reaches its highest point. At this point, the lever 843 is located at one edge of the dial edge 844, in a state of waiting to disengage from the dial edge 844. The motor 841 stops operating, and the internal components are then ready to disengage. When the lower mold 3 of the oil cup flips so that the opening faces downward and the bottom is aligned with the hammer rod 82, the motor 841 rotates, causing the lever 843 to disengage from the pawl 844. The energy storage spring 834 releases its elastic potential energy, pushing the connecting rod 832 and the hammer rod 82 to descend rapidly and hammer the bottom of the lower mold 3, causing the oil cup in its cavity to loosen and fall out. 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 hold the fallen oil cup. Then the motor 841 continues to rotate, causing the lever 843 to move the pawl 844, causing the connecting rod 832 and the hammer rod 82 to rise and reset. The energy storage spring 834 is compressed and stores elastic potential energy.

[0041] Example 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, with gears 92 fixed on each rotating shaft 91. Racks 93 are respectively located on the top surface of the horizontal plate 6 and on both sides of the horizontal groove 5. Each gear 92 meshes with each rack 93. A U-shaped frame 95 driven by a transverse moving cylinder 94 is installed on the top surface of the horizontal plate 6. 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 fixed in the frame 1, each pressure beam 96 being parallel to the transverse groove 5 and having its bottom surface slidingly rubbing against the top surface of the two side plates 951 of the U-shaped frame 95.

[0044] In this embodiment of the application, due to the above-described structure, when the lower mold 3 needs to move to the other end of the transverse groove 5, 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. The moving U-shaped frame 95 drives a pair of rotating shafts 91 to move along the extension direction of the transverse groove 5 together with the lower mold 3. At the same time, each gear 92 meshes with the rack 93 to drive the lower mold 3 to flip during the movement. Each rotating shaft 91 is rotatably engaged with the side plate 951 of the U-shaped frame 95. Each side plate 951 of the U-shaped frame 95 is provided with a hole that mates with the rotating shaft 91. Bearings can also be provided between the hole and the rotating shaft 91 to reduce friction loss and noise.

[0045] Example 4:

[0046] like Figures 1 to 5 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the lower mold 3 includes a main body 31 that runs vertically through the body, a fixed sleeve 32 fixed to the bottom of the main body 31, and a block 33 floatingly installed in the fixed sleeve 32. The top surface of the block 33 slides 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 block 33. Several limiting members 35 are provided between the block 33 and the fixed sleeve 32.

[0047] Furthermore, the limiting member 35 includes a vertical groove 351 disposed on the outer peripheral wall of the blocking block 33 and communicating with the annular groove 34, a screw hole 352 disposed on the lower peripheral wall of the fixing sleeve 32, and a bolt 353 passing through the vertical groove 351 and connected to the screw hole 352 by threads.

[0048] In this embodiment of the application, due to the above-described structure, when the bottom of the lower mold 3 faces upward, the blocking block 33 is located directly below the hammer rod 82. When the hammer rod 82 falls, it hammers the blocking block 33, causing the blocking block 33 to move into the fixed sleeve 32. This quickly pushes out the oil cup that has already been formed 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 the stored elastic potential energy to avoid excessive impact force damaging the lower mold 3. When the hammer rod 82 rises, the return spring 36 releases the elastic potential energy, causing the blocking block 33 to 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 blocking block 33 floats, the bolt 353 also slides in the corresponding vertical groove 351 to prevent the blocking block 33 from detaching from the fixed sleeve 32.

[0049] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0050] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An oil cup injection molding machine, comprising a frame, an upper mold, a lower mold, and an injection unit, characterized in that, It also includes a horizontal plate with a horizontal groove fixed in the frame, a sliding assembly and a hammering assembly at the top of the frame, the sliding assembly and the hammering assembly are located above the two ends of the horizontal groove respectively, the lower mold can be flipped and installed in the horizontal groove by a flipping and moving assembly, the upper mold is installed at one end of the sliding assembly by a lifting cylinder, and the other end of the sliding assembly is equipped with an injection unit. The sliding stroke of the sliding component is perpendicular to the extension direction of the transverse groove; The lower mold includes a main body that runs vertically through the upper and lower parts, a fixed sleeve fixed at the bottom of the main body, and a plug that floats in the fixed sleeve. The top surface of the plug slides with the lower end of the fixed sleeve through an annular groove. A return spring is sleeved on the outer peripheral wall of the fixed sleeve. The top end of the return spring abuts against the bottom surface of the main body, and the bottom end abuts against the top surface of the plug. Several limiting components are provided between the plug and the fixed sleeve. The limiting component includes a vertical groove on the outer peripheral wall of the block and connected to the annular groove, a screw hole on the lower peripheral wall of the fixed sleeve, and a bolt passing through the vertical groove and connected to the screw hole by threads.

2. The oil cup injection molding equipment according to claim 1, characterized in that, The sliding assembly includes a slide groove located on the top of the frame, in which a slide plate driven by a longitudinal movement cylinder is slidably installed. A lifting cylinder is installed at one end of the slide plate, and an injection molding 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 on the inner wall of the opposite side of the slide groove, and the opposite side walls of the slide plate are slidably engaged with the corresponding grooves by a slider.

4. The oil cup injection molding equipment according to claim 1, characterized in that, The hammering assembly includes a hammering box fixed to the top of the frame, a hammering rod inside the hammering box, the upper end of the hammering rod being elastically connected to the top of the hammering box via an elastic unit, and the lower end penetrating into the frame. The hammering box also includes a toggle unit for toggle the hammering rod upward.

5. The oil cup injection molding equipment according to claim 4, characterized in that, The elastic unit includes a floating hole set at the top of the hammer box, a connecting rod slidably installed in the floating hole, and a circular ring on the peripheral wall at both the upper and lower ends of the connecting rod. An energy storage spring is sleeved on the peripheral wall, with the upper end of the energy storage spring abutting against the inner wall at the top of the hammer box and the lower end abutting against the upper surface of the lower circular ring.

6. The oil cup injection molding equipment according to claim 5, characterized in that, The inner wall of the floating hole is provided with a spline, and the spline slides into 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 actuation unit includes a dial mounted inside the hammer box via a motor rotation. A lever is fixed to the dial at an eccentric position on the surface of the hammer rod. A ferrule is provided on the peripheral wall of the lower ring, and the outer end of the ferrule slides and rubs against 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, each rotating shaft having a gear fixed on it. There are racks on the top surface of the horizontal plate and on both sides of the horizontal groove. Each gear meshes with each rack. A U-shaped frame driven by a transverse movement cylinder is installed on the top surface of the horizontal plate. The outer ends of each rotating shaft are rotatably connected to the two side plates of the U-shaped frame.

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