Hydraulic system for two-plate injection molding machine

Abstract

The invention discloses a hydraulic system for a two-plate injection molding machine, and relates to the technical field of hydraulic systems, the hydraulic system comprises a cooling mechanism, and the cooling mechanism comprises a first cooling structure and a second cooling structure; wherein the hydraulic mechanism comprises an external oil cylinder structure and a circulating oil tank; a base is arranged at the lower end of the injection molding machine body; the cooling device and the first cooling pipe are matched to cool hydraulic oil in the first oil supply pipe and the second oil supply pipe, the first driving structure and the cooling fan are matched to cool the first oil supply pipe, the second oil supply pipe and the first cooling pipe, and the air suction device and the dustproof ventilation opening are matched to discharge high-temperature air in the cooling box. And the cooling equipment directly cools the hydraulic oil in the circulating oil tank through a liquid guide pipe and a second cooling pipe, so that the cooling effect of the cooling mechanism is improved, the injection molding machine main body does not need to be shut down to disassemble and maintain the cooling mechanism, and the use effect of the cooling mechanism is improved.

Description

Technical Field

[0001] The invention belongs to the field of hydraulic systems, in particular to a hydraulic system for a two-platen injection molding machine. Background Art

[0002] Injection molding machine is also known as injection molding machine or injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it eject and fill the mold cavity. The two-plate injection molding machine is a common type of injection molding machine, mainly used for the production of plastic products. The hydraulic system of the two-plate injection molding machine is one of its core parts, mainly used to drive the opening and closing of the mold, the movement of the screw, and the injection and pressure holding actions. The hydraulic system is usually composed of a hydraulic pump, a hydraulic cylinder, a control valve and a fuel tank.

[0003] The existing hydraulic system for two-platen injection molding machines has certain disadvantages when in use. When the existing hydraulic system for two-platen injection molding machines is in use, the hydraulic oil generates heat due to friction, resistance and flow loss over a long period of time, thereby causing the temperature of the hydraulic oil to rise, reducing its viscosity, density and lubrication performance. The existing two-platen injection molding machines usually maintain the appropriate temperature of the hydraulic oil through an internal cooling system, but the cooling system needs to be disassembled and maintained regularly. The cooling system is arranged inside the two-platen injection molding machine, and it is relatively troublesome to disassemble, maintain or assemble it, and the two-platen injection molding machine needs to be shut down, which reduces the use effect of the hydraulic system and cannot meet people's needs. Summary of the invention

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes a hydraulic system for a two-platen injection molding machine.

[0005] A hydraulic system for a two-plate injection molding machine, applied to an injection molding machine body and a hydraulic mechanism arranged on the injection molding machine body, comprising: a cooling mechanism, comprising a first cooling structure detachably mounted on the injection molding machine body and connected to the hydraulic mechanism, and a second cooling structure used in conjunction with the first cooling structure; wherein the hydraulic mechanism comprises an external oil cylinder structure detachably mounted on the injection molding machine body and a circulating oil tank arranged inside the injection molding machine body and connected to the external oil cylinder structure; the first cooling structure is arranged outside the injection molding machine body, the second cooling structure is arranged inside the circulating oil tank and cooperates with the first cooling structure to cool the hydraulic oil in the circulating oil tank; the hydraulic mechanism also comprises a first oil pump arranged inside the machine base and connected to the circulating oil tank, an oil storage tank arranged on the side of the first oil pump away from the circulating oil tank and assisting the external oil cylinder structure, and a hydraulic oil pipe connecting the circulating oil tank with the oil storage tank, the circulating oil tank can draw away the high-temperature hydraulic oil in the oil storage tank and cool it, the upper end of the machine base is provided with a box cover matching the circulating oil tank, and the lower end of the injection molding machine body is provided with a machine base.

[0006] As a further solution of the present invention: the cooling mechanism also includes a cooling box that is detachably arranged on the outside of the injection molding machine body and a cooling device that is arranged on the outside of the cooling box and provides circulating coolant to the first cooling structure and the second cooling structure respectively, and the cooling device can increase the circulating coolant; the cooling mechanism also includes two groups of first oil supply pipes that are connected to the circulating oil tank and one end of which extends into the interior of the cooling box and a second oil supply pipe that is arranged below the first oil supply pipe, the first oil supply pipe and the second oil supply pipe are both detachable, a part of the first oil supply pipe and the second oil supply pipe are arranged inside the machine base and connected to the circulating oil tank, and a one-way valve for controlling the flow direction of the hydraulic oil is provided, and the remaining first oil supply pipe and the second oil supply pipe are arranged on the outer wall of the machine base and connected to the cooling box.

[0007] As a further solution of the present invention: the first cooling structure includes a cooling box arranged in a cooling box and connected to the first oil supply pipe and the second oil supply pipe respectively, and a first cooling pipe respectively wound on the first oil supply pipe and the second oil supply pipe and connected to a cooling device; the first cooling structure also includes a cooling fan arranged on the upper inner side of the cooling box and rotatably connected to the outer wall of the cooling box, and a first driving structure detachably mounted on the outer wall of the cooling box and controlling the cooling fan to rotate; wherein, a dust-proof vent is arranged on the upper end surface of the cooling box; an air suction device is arranged on the lower outer surface of the cooling box, one end of the first cooling pipe is connected to the cooling device, and the hydraulic oil inside the first oil supply pipe and the second oil supply pipe is cooled by coolant, and the cooperation of the cooling fan and the air suction device can accelerate the air flow inside the cooling box, thereby cooling the first oil supply pipe and the second oil supply pipe.

[0008] As a further solution of the present invention: the second cooling structure includes a liquid guide pipe symmetrically arranged on both sides of the outer surface of the cooling device and extending into the interior of the injection molding machine body, and a second cooling pipe arranged in a wavy shape in the middle part inside the circulating oil tank, extending out of the circulating oil tank at both ends and connected to the liquid guide pipe; wherein, temperature sensors are provided in the cooling box and the circulating oil tank, and the cooling device can cool the hydraulic oil inside the circulating oil tank through the second cooling pipe.

[0009] As a further solution of the present invention: the circulating oil tank and the cooling box are respectively equipped with a first filter component and a second filter component for circulating and filtering the hydraulic oil; wherein the first filter component is respectively matched with the first oil supply pipe and the second oil supply pipe; and the second filter component is matched with the second oil supply pipe.

[0010] As a further solution of the present invention: the first filter assembly includes a filter belt movably arranged in the circulating oil tank and performing filtering, an active part arranged on the upper inner side of the circulating oil tank and controlling the movement of the filter belt, and several groups of driven parts symmetrically arranged on the inner wall of the circulating oil tank and assisting the movement of the filter belt; wherein the outer wall of the circulating oil tank is installed with a second driving structure for controlling the active part to rotate; the pipe openings of the first oil supply pipe and the second oil supply pipe are both arranged on the inner side of the filter belt; a first cleaning assembly for cleaning impurities adhered to the filter belt is arranged inside the circulating oil tank; a filter mesh is arranged on the filter belt, the first oil supply pipe is arranged as an oil return pipe, the second oil supply pipe is arranged as an oil inlet pipe, and the filter belt filters impurities in the hydraulic oil; the several groups of driven parts are arranged in a rectangular shape, and the active part and the two uppermost groups of driven parts are arranged in a triangular shape.

[0011] As a further solution of the present invention: the second filter assembly includes a filter cylinder rotatably arranged on the inner wall of the cooling box and coaxially arranged with the other end of the second oil supply pipe, a rotating cylinder arranged on the upper part of the filter cylinder and rotatably connected to the inner wall of the cooling box, and an auxiliary transmission belt that transmission-connects the rotating cylinder with the filter cylinder; wherein, a connecting rod coaxially connected to the cooling fan is arranged at one end of the rotating cylinder; a second cleaning assembly for cleaning the filter cylinder of adhered impurities is arranged inside the cooling box; the rotating cylinder can adhere to impurities processed from the filter cylinder, the rotating cylinder is arranged above the hydraulic oil, and the filter cylinder is arranged in the hydraulic oil.

[0012] As a further solution of the present invention: the first cleaning assembly includes a first cleaning box arranged at the upper inner side of the circulating oil tank and respectively matched with the filter drive belt, and a second cleaning box arranged at one side of the first cleaning box; the first cleaning assembly also includes a cleaning and conveying structure rotatably mounted on the inner wall of the circulating oil tank and in contact with the outer wall of the filter drive belt, and a stopper symmetrically mounted on the inner wall of the first cleaning box and detachably connected to the cleaning and conveying structure;

[0013] As a further solution of the present invention: the first cleaning assembly further comprises an arc-shaped scraper which is detachably mounted inside the second cleaning box and scrapes away impurities adhered to the outer wall of the filter belt, and a connecting structure which elastically mounts the arc-shaped scraper inside the second cleaning box;

[0014] As a further solution of the present invention: the first cleaning box and the second cleaning box are both provided with cleaning openings, the outer surfaces of the first cleaning box and the second cleaning box are both provided with connecting plugs fixed to the circulating oil tank, the interior of the circulating oil tank is symmetrically provided with a plurality of groups of supporting sockets connected to the connecting plugs, the cleaning and conveying structure comprises a conveyor belt device and a second cleaning belt arranged on the outer wall of the conveyor belt device, the second cleaning belt is attached to the outer wall of the filter transmission belt and performs preliminary cleaning of impurities adhered to the filter transmission belt; the conveyor belt device is provided with a limiting rod matching the limiting member, and the limiting member is provided with a limiting rod. A limiting groove corresponding to the limiting rod is provided, and the conveyor belt device can be rotated on the inner wall of the circulating oil tank to insert the limiting rod into the limiting piece. The connecting structure includes a connecting seat detachably mounted inside the second cleaning box and several groups of connecting pieces mounted on the lower end surface of the arc-shaped scraper and movably connected to the connecting seat. The connecting seat is provided with several groups of connecting grooves connected to the connecting piece. Connecting blocks are symmetrically provided on both sides of the outer surface of the connecting piece. The upper end surface of the connecting block is provided with a limiting spring connected to the connecting seat. The arc-shaped scraper is fitted with the outer wall of the filter transmission belt through the cooperation of the limiting spring, the connecting block and the connecting piece.

[0015] As a further solution of the present invention: the second cleaning component includes a first cleaning belt which is arranged on the inner wall of the auxiliary transmission belt and cleans impurities adhered to the outside of the filter cylinder, a scraper bar which is detachably arranged on the inner wall of the cooling box and cleans impurities adhered to the outside of the rotating cylinder, and a collection box which is detachably installed under the scraper bar and collects and cleans the impurities, the scraper bar and the collection box are both arranged above the hydraulic oil, and the upper end surface of the scraper bar is in contact with the outer wall of the rotating cylinder; the second cleaning component also includes a guide member symmetrically arranged on the outer wall of the collection box and a guide rod symmetrically arranged on the inner wall of the cooling box and slidably connected to the guide member, and a guide hole connected to the guide rod is opened on the guide member; wherein, the outer wall of the cooling box is provided with a moving member for controlling the movement of the collection box.

[0016] As a further solution of the present invention: one end of the injection molding machine body is provided with a mounting seat for mounting the cooling box and the cooling device, and a fixing component arranged on the mounting seat and fixing the cooling box and the cooling device respectively; wherein the fixing component includes a third driving structure detachably mounted on the outer wall of the mounting seat, a fixing structure movably arranged inside the mounting seat and detachably connected to the third driving structure respectively, and a plurality of mounting blocks respectively arranged on the lower end surfaces of the cooling box and the cooling device and movably connected to the mounting seat, wherein the mounting seat is an "L"-shaped structure, and the mounting seat is detachably fixed to the outer surface of the machine base; wherein the third driving structure is connected or separated from the mounting block by rotating the fixing structure so as to rotatably move the cooling box and the cooling device. The cooling equipment is fixed or disassembled; the lower end surface of the cooling box is provided with an auxiliary slider movably connected to the mounting seat, the driving structure can be set to a driving motor, and the mounting seat is symmetrically provided with grooves matching the mounting block and the auxiliary slider; the fixing structure includes a rotating block with an elliptical structure, reinforcing rods symmetrically rotatably arranged on both sides of the outer surface of the rotating block, and a fixed block rotatably connected to the reinforcing rods and movably arranged inside the mounting seat, one end of the fixed block is provided with a fixing rod plugged into the mounting block, and the third driving structure is provided with a transmission rod coaxially connected to the rotating block, and the third driving structure controls the rotation of the two groups of rotating blocks respectively through the transmission rod, thereby fixing or disassembling the cooling box and the cooling equipment.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The present invention sets a cooling mechanism, wherein the cooling device and the first cooling pipe cooperate to cool the hydraulic oil in the first oil supply pipe and the second oil supply pipe, the first driving structure and the cooling fan cooperate to dissipate heat and cool the first oil supply pipe, the second oil supply pipe and the first cooling pipe, the air intake device and the dust-proof vent cooperate to discharge the high-temperature air in the cooling box, thereby improving the heat dissipation and cooling effect, the cooling device directly cools the hydraulic oil in the circulating oil tank through the liquid guide pipe and the second cooling pipe, thereby improving the cooling effect of the cooling mechanism, and there is no need to shut down the main body of the injection molding machine to disassemble and maintain the cooling mechanism, thereby improving the use effect of the cooling mechanism.

[0019] (2) The present invention can filter the hydraulic oil in the circulating oil tank by setting up the first filter component and the second filter component, the second drive structure, the active part, the driven part and the filter drive belt, and the first drive structure, the connecting rod, the rotating cylinder, the auxiliary drive belt and the filter cylinder filter the impurities in the hydraulic oil in the cooling box, thereby improving the filtering effect and filtering efficiency of the hydraulic oil, thereby reducing the number of times the cooling mechanism is disassembled and maintained.

[0020] (3) The present invention provides a first cleaning component and a second cleaning component. The first cleaning box, the conveyor belt device, the second cleaning belt and the scraper cooperate to perform preliminary cleaning of impurities on the filter transmission belt. The second cleaning box, the connecting member, the connecting block, the limit spring and the arc scraper cooperate to clean the impurities on the filter transmission belt again, thereby improving the cleaning effect of the filter transmission belt. The first cleaning box and the second cleaning box can be disassembled and cleaned by the limit rod, the limit member, the connecting plug and the supporting socket. The first driving structure, the connecting rod, the rotating drum, the auxiliary transmission belt and the first cleaning belt cooperate to clean impurities adhered to the filter drum. The scraper strip, the collecting box, the guide member and the guide rod cooperate to clean impurities adhered to the rotating drum, thereby extending the service life of the first filter component and the second filter component.

[0021] (4) The present invention sets a fixing assembly, and the third driving structure, the transmission rod, the rotating block, the reinforcing rod and the fixing block cooperate to control the fixing or disassembly of the fixing rod and the mounting block, thereby installing or disassembling the cooling box and the cooling equipment, thereby improving the installation and disassembly efficiency of the staff. By setting an auxiliary slider, the stability of the connection between the cooling box and the mounting seat can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a partial structural diagram of the injection molding machine body and the cooling mechanism in the present invention.

[0024] Figure 3 It is a partial structural diagram of the first cooling structure in the present invention.

[0025] Figure 4 It is a partial structural diagram of the second cooling structure in the present invention.

[0026] Figure 5 It is a partial structural diagram of the first filtering component and the first cleaning component in the present invention.

[0027] Figure 6 It is a partial structural diagram of the arc-shaped scraper and the connecting structure in the present invention.

[0028] Figure 7 It is a partial structural diagram of the cleaning and conveying structure in the present invention.

[0029] Figure 8 It is a partial structural diagram of the second filtering component and the second cleaning component in the present invention.

[0030] Fig. 9 It is a partial structural diagram of the scraper strip and the collecting box in the present invention.

[0031] Fig.10It is a partial structural diagram of the fixing component in the present invention.

[0032] Fig.11 It is a partial structural diagram of the cooling box and the fixing structure in the present invention.

[0033] In the figure: 1, injection molding machine body; 2, first cooling structure; 3, second cooling structure; 4, external oil cylinder structure; 5, circulating oil tank; 6, cooling box; 7, cooling equipment; 8, first oil supply pipe; 9, second oil supply pipe; 10, cooling box; 11, first cooling pipe; 12, cooling fan; 13, first driving structure; 14, dustproof vent; 15, suction equipment; 16, liquid guide pipe; 17, second cooling pipe; 18, temperature sensor; 19, filter belt; 20, active part; 21, driven part; 22, second driving structure; 23, connecting rod; 24, first cleaning box; 25, second cleaning box; 26, cleaning transmission structure; 27, limiter; 28, arc scraper; 29, connecting structure structure; 30, the first cleaning belt; 31, the scraper; 32, the collecting box; 33, the guide member; 34, the moving member; 35, the mounting seat; 36, the third driving structure; 37, the fixed structure; 38, the mounting block; 39, the filter cartridge; 40, the rotating cylinder; 41, the auxiliary transmission belt; 42, the guide rod; 43, the machine base; 44, the first oil pump; 45, the oil storage tank; 46, the one-way valve; 47, the connecting plug-in; 48, the conveyor belt device; 49, the second cleaning belt; 50, the limiting rod; 51, the connecting seat; 52, the connecting member; 53, the connecting block; 54, the limiting spring; 55, the auxiliary slider; 56, the rotating block; 57, the reinforcing rod; 58, the fixed block; 59, the fixed rod; 60, the transmission rod; 61, the scraper. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] See also Figure 1 - Figure 4The present application provides a hydraulic system for a two-platen injection molding machine, which is applied to an injection molding machine body 1 and a hydraulic mechanism arranged on the injection molding machine body 1, including: a cooling mechanism, including a first cooling structure 2 which is detachably mounted on the injection molding machine body 1 and communicated with the hydraulic mechanism, and a second cooling structure 3 which is used in conjunction with the first cooling structure 2; wherein the hydraulic mechanism includes an external oil cylinder structure 4 which is detachably mounted on the injection molding machine body 1 and a circulating oil tank 5 which is arranged inside the injection molding machine body 1 and communicated with the external oil cylinder structure 4; the first cooling structure 2 is arranged outside the injection molding machine body 1, and the second cooling structure 3 is arranged The hydraulic oil in the circulating oil tank 5 is cooled inside the circulating oil tank 5 and cooperates with the first cooling structure 2; a base 43 is arranged at the lower end of the injection molding machine body 1; the hydraulic mechanism also includes a first oil pump 44 arranged inside the base 43 and connected to the circulating oil tank 5, an oil storage tank 45 arranged on the side of the first oil pump 44 away from the circulating oil tank 5 and assisting the external cylinder structure 4, and a hydraulic oil pipe connecting the circulating oil tank 5 with the oil storage tank 45. The circulating oil tank 5 can draw away the high-temperature hydraulic oil in the oil storage tank 45 and cool it. A tank cover matching the circulating oil tank 5 is arranged at the upper end of the base 43.

[0037] The cooling mechanism in the present invention also includes a cooling box 6 that is detachably arranged outside the injection molding machine body 1 and a cooling device 7 that is arranged outside the cooling box 6 and provides circulating coolant to the first cooling structure 2 and the second cooling structure 3 respectively, and the cooling device 7 can increase the circulating coolant; the cooling mechanism also includes two groups of first oil supply pipes 8 that are connected to the circulating oil tank 5 and one end of which extends into the interior of the cooling box 6 and a second oil supply pipe 9 that is arranged below the first oil supply pipe 8, the first oil supply pipe 8 and the second oil supply pipe 9 are both arranged to be detachable, a part of the first oil supply pipe 8 and the second oil supply pipe 9 are arranged inside the machine base 43 and connected to the circulating oil tank 5, and a one-way valve 46 for controlling the flow direction of the hydraulic oil is provided, and the remaining first oil supply pipes 8 and the second oil supply pipes 9 are arranged on the outer wall of the machine base 43 and connected to the cooling box 6.

[0038] The first cooling structure 2 of the present invention includes a cooling box 10 arranged in the cooling box 6 and connected to the first oil supply pipe 8 and the second oil supply pipe 9 respectively, and a first cooling pipe 11 respectively wound on the first oil supply pipe 8 and the second oil supply pipe 9 and connected to the cooling device 7, and a second oil pump for circulating the hydraulic oil in the circulating oil tank 5 and the cooling box 10 is arranged in the cooling box 10; the first cooling structure 2 also includes a cooling fan 12 arranged on the upper inner side of the cooling box 6 and rotatably connected to the outer wall of the cooling box 10, and a cooling fan 12 detachably mounted on the outer wall of the cooling box 6 and controlling the cooling fan 12 is a first driving structure 13 for rotating, and the cooling fan 12 includes a rotating rod and a plurality of groups of fan blades installed on the rotating rod; wherein, the upper end surface of the cooling box 6 is provided with a dust-proof vent 14; the lower part of the outer surface of the cooling box 6 is provided with an air suction device 15, one end of the first cooling pipe 11 is connected to the cooling device 7, and the hydraulic oil inside the first oil supply pipe 8 and the second oil supply pipe 9 is cooled by the coolant, and the cooling fan 12 and the air suction device 15 cooperate to accelerate the air flow inside the cooling box 6, thereby cooling the first oil supply pipe 8 and the second oil supply pipe 9.

[0039] The second cooling structure 3 in the present invention includes a liquid guide tube 16 symmetrically arranged on both sides of the outer surface of the cooling device 7 and extending into the interior of the injection molding machine body 1, and a second cooling tube 17 wavy in the middle, extending from the circulating oil tank 5 at both ends and connected to the liquid guide tube 16; wherein, a temperature sensor 18 is provided in the cooling box 10 and the circulating oil tank 5, and the cooling device 7 can cool the hydraulic oil inside the circulating oil tank 5 through the second cooling tube 17.

[0040] In summary, when the injection molding machine body 1 is started to work, when the temperature of the hydraulic oil in the external cylinder structure 4 reaches the set value, the first oil pump 44 is started to introduce the high-temperature hydraulic oil in the oil storage tank 45 into the circulating oil tank 5 for cooling, and the hydraulic oil in the circulating oil tank 5 is introduced into the oil storage tank 45 to make the external cylinder structure 4 work, and the second oil pump is started to pump the hydraulic oil in the circulating oil tank 5 into the cooling box 10 for cooling, and the cooling device 7 is started to make the first cooling pipe 11 cool the hydraulic oil in the first oil supply pipe 8 and the second oil supply pipe 9, and the first driving structure 13 is started to drive the cooling fan 12 to dissipate heat and cool the first oil supply pipe 8, the second oil supply pipe 9 and the first cooling pipe 11, and the suction device 15 is started to discharge the high-temperature air in the cooling box 6 to improve the heat dissipation and cooling effect. When it is necessary to speed up the cooling, the cooling device 7 directly cools the hydraulic oil in the circulating oil tank 5 through the liquid guide pipe 16 and the second cooling pipe 17.

[0041] Embodiment 2

[0042] Reference Figure 2 - Figure 8, which is the second embodiment of the present invention, wherein the circulating oil tank 5 and the cooling box 10 of the present invention are respectively installed with a first filter component and a second filter component for circulating and filtering the hydraulic oil, and the cooling mechanism, the first filter component and the second filter component cooperate to enable the hydraulic system in the present application to filter the hydraulic oil while cooling it; wherein the first filter component is respectively matched with the first oil supply pipe 8 and the second oil supply pipe 9; the second filter component is matched with the second oil supply pipe 9.

[0043] The first filter assembly in the present invention includes a filter belt 19 movably arranged in the circulating oil tank 5 and performing filtering, an active member 20 arranged on the upper inner side of the circulating oil tank 5 and controlling the movement of the filter belt 19, and several groups of driven members 21 symmetrically arranged on the inner wall of the circulating oil tank 5 and assisting the movement of the filter belt 19; wherein, a second driving structure 22 for controlling the active member 20 to rotate is installed on the outer wall of the circulating oil tank 5; the pipe openings of the first oil supply pipe 8 and the second oil supply pipe 9 are both arranged on the inner side of the filter belt 19; a first cleaning assembly for cleaning impurities adhered to the filter belt 19 is arranged inside the circulating oil tank 5; a filter mesh is arranged on the filter belt 19, the first oil supply pipe 8 is arranged as an oil return pipe, the second oil supply pipe 9 is arranged as an oil inlet pipe, and the filter belt 19 filters impurities in the hydraulic oil; several groups of driven members 21 are arranged in a rectangular shape, and the active member 20 and the two uppermost groups of driven members 21 are arranged in a triangular shape.

[0044] The second filter assembly in the present invention includes a filter cartridge 39 rotatably arranged on the inner wall of the cooling box 10 and coaxially arranged with the other end of the second oil supply pipe 9, a rotating cylinder 40 arranged on the upper part of the filter cartridge 39 and rotatably connected to the inner wall of the cooling box 10, and an auxiliary transmission belt 41 that transmission-connects the rotating cylinder 40 with the filter cartridge 39; wherein, a connecting rod 23 coaxially connected to the cooling fan 12 is arranged at one end of the rotating cylinder 40; a second cleaning assembly for cleaning adhered impurities from the filter cartridge 39 is arranged inside the cooling box 10; the rotating cylinder 40 can adhere to impurities processed from the filter cartridge 39, the rotating cylinder 40 is arranged above the hydraulic oil, and the filter cartridge 39 is arranged in the hydraulic oil.

[0045] In summary, when the hydraulic system is working, the hydraulic oil in the oil storage tank 45 is introduced into the circulating oil tank 5 and the cooling box 10, so that the filter belt 19 and the filter cylinder 39 filter the impurities in the hydraulic oil, reducing the number of times the hydraulic oil is replaced, and the second driving structure 22 is started to drive the active member 20 to rotate, and the active member 20 drives the filter belt 19 to rotate, so that the filter belt 19 drives the driven member 21 to rotate in the circulating oil tank 5, thereby moving the filter belt 19 with impurities adhering to the bottom to the top, thereby increasing the service life of the filter belt 19, and the first driving structure 13 drives the rotating drum 40 to rotate through the cooling fan 12 and the connecting rod 23, and the rotating drum 40 drives the auxiliary transmission belt 41 to move, and the auxiliary transmission belt 41 drives the filter cylinder 39 to rotate, and filters the hydraulic oil passing through the filter cylinder 39.

[0046] Embodiment 3

[0047] Reference Figure 1 - Fig. 9 , which is the third embodiment of the present invention, wherein the first cleaning assembly includes a first cleaning box 24 arranged at the upper inner side of the circulating oil tank 5 and respectively matched with the filter drive belt 19 and a second cleaning box 25 arranged at one side of the first cleaning box 24; the first cleaning assembly also includes a cleaning conveying structure 26 rotatably mounted on the inner wall of the circulating oil tank 5 and affixed to the outer wall of the filter drive belt 19, and a stopper 27 symmetrically mounted on the inner wall of the first cleaning box 24 and detachably connected to the cleaning conveying structure 26;

[0048] The first cleaning assembly of the present invention further comprises an arc-shaped scraper 28 detachably mounted inside the second cleaning box 25 and scraping off impurities adhered to the outer wall of the filter drive belt 19, and a connecting structure 29 for elastically mounting the arc-shaped scraper 28 inside the second cleaning box 25;

[0049] In the present invention, the first cleaning box 24 and the second cleaning box 25 are both provided with cleaning openings, the outer surfaces of the first cleaning box 24 and the second cleaning box 25 are both provided with connecting plugs 47 fixed to the circulating oil tank 5, and the interior of the circulating oil tank 5 is symmetrically provided with a plurality of groups of supporting sockets connected to the connecting plugs 47, the cleaning conveying structure 26 includes a conveyor belt device 48 and a second cleaning belt 49 arranged on the outer wall of the conveyor belt device 48, the cleaning conveying structure 26, the first cleaning box 24 and the second cleaning box 25 are all arranged above the hydraulic oil, and the cleaning conveying structure 26 is provided with a driving device for controlling the conveyor belt device 48 to work, the interior of the first cleaning box 24 is provided with a scraper 61 for cleaning impurities adhered to the second cleaning belt 49, and the second cleaning belt 49 is attached to the outer wall of the filter transmission belt 19 and removes impurities adhered to the filter transmission belt 19. The material is preliminarily cleaned; a limiting rod 50 matching the limiting member 27 is provided on the conveyor belt device 48, and a limiting groove corresponding to the limiting rod 50 is opened on the limiting member 27. The conveyor belt device 48 rotates on the inner wall of the circulating oil tank 5 to insert the limiting rod 50 into the limiting member 27. The connecting structure 29 includes a connecting seat 51 detachably mounted inside the second cleaning box 25 and a plurality of groups of connecting members 52 mounted on the lower end surface of the arc-shaped scraper 28 and movably connected to the connecting seat 51. The connecting seat 51 is provided with a plurality of groups of connecting grooves connected to the connecting member 52. Connecting blocks 53 are symmetrically arranged on both sides of the outer surface of the connecting member 52. The upper end surface of the connecting block 53 is provided with a limiting spring 54 connected to the connecting seat 51. The arc-shaped scraper 28 is fitted with the outer wall of the filter transmission belt 19 through the limiting spring 54, the connecting block 53 and the connecting member 52.

[0050] The second cleaning component in the present invention includes a first cleaning belt 30 arranged on the inner wall of the auxiliary transmission belt 41 and cleaning impurities adhered to the outside of the filter cylinder 39, a scraper 31 detachably arranged on the inner wall of the cooling box 10 and cleaning impurities adhered to the outside of the rotating cylinder 40, and a collection box 32 detachably installed below the scraper 31 and collecting and cleaning impurities, the scraper 31 and the collection box 32 are both arranged above the hydraulic oil, and the upper end surface of the scraper 31 is in contact with the outer wall of the rotating cylinder 40; the second cleaning component also includes a guide member 33 symmetrically arranged on the outer wall of the collection box 32 and a guide rod 42 symmetrically installed on the inner wall of the cooling box 10 and slidably connected to the guide member 33, and a guide hole connected to the guide rod 42 is opened on the guide member 33; wherein, the outer wall of the cooling box 6 is provided with a moving member 34 for controlling the movement of the collection box 32, and the cooperation of the cooling mechanism, the first filter assembly, the second filter assembly, the first cleaning assembly and the second cleaning assembly can enable the hydraulic system in the present application to cool and filter the hydraulic oil and automatically clean it at the same time, thereby improving the service life of the first filter assembly and the second filter assembly.

[0051] In summary, when the filter belt 19 is working and adhering to impurities, the filter belt 19 moves so that the conveyor belt device 48 controls the second cleaning belt 49 to move, and cleans the impurities adhered to the filter belt 19, and the scraper 61 cleans the impurities adhered to the second cleaning belt 49 into the first cleaning box 24, and the connecting member 52 and the connecting block 53 make the arc scraper 28 fit with the outer wall of the filter belt 19 under the action of the limit spring 54, and the arc scraper 28 cleans the impurities adhered to the filter belt 19 into the second cleaning box 25, and the first driving structure 13 drives the rotating drum 40 to rotate through the cooling fan 12 and the connecting rod 23, and the rotating drum 40 drives the auxiliary transmission belt 41 to move, and the auxiliary transmission belt 41 drives the first cleaning belt 30 to clean the impurities adhered to the outside of the filter drum 39 while moving, and the cleaned impurities adhere to the outside of the rotating drum 40, so that the scraper strip 31 cleans the impurities adhered to the rotating drum 40 into the collection box 32;

[0052] When enough impurities are collected in the first cleaning box 24 and the second cleaning box 25, rotate the conveyor belt device 48, disassemble and separate the limit rod 50 and the limit member 27 on the conveyor belt device 48, disassemble and separate the connecting plug-in 47 from the supporting socket, disassemble and clean the first cleaning box 24 and the second cleaning box 25, and control the collection box 32 to move out of the cooling box 10 through the moving member 34, so that the guide member 33 moves on the guide rod 42, thereby disassembling and cleaning the collection box 32.

[0053] Embodiment 4

[0054] Reference Figure 1 - Figure 2 and Fig.10 and- Fig.11, which is the fourth embodiment of the present invention, wherein one end of the injection molding machine body 1 of the present invention is provided with a mounting seat 35 for mounting the cooling box 6 and the cooling device 7 and a fixing assembly arranged on the mounting seat 35 and fixing the cooling box 6 and the cooling device 7 respectively; wherein the fixing assembly includes a third driving structure 36 detachably mounted on the outer wall of the mounting seat 35, a fixing structure 37 movably arranged inside the mounting seat 35 and detachably connected to the third driving structure 36, and a plurality of groups of mounting blocks 38 movably connected to the lower end surfaces of the cooling box 6 and the cooling device 7 and movably connected to the mounting seat 35, the mounting seat 35 is an "L"-shaped structure, and the mounting seat 35 is detachably fixed to the outer surface of the machine base 43; wherein the third driving structure 36 is connected or separated with the mounting block 38 by rotation of the fixing structure 37 so as to fix or remove the cooling box 6 and the cooling device 7; the lower end surface of the cooling box 6 is provided with a fixing structure movably arranged inside the mounting seat 35 and detachably connected to the third driving structure 36 The connected auxiliary slider 55, the driving structure can be set as a driving motor, and the mounting seat 35 is symmetrically provided with grooves matching the mounting block 38 and the auxiliary slider 55; the fixed structure 37 includes a rotating block 56 with an elliptical structure, reinforcing rods 57 symmetrically rotatably arranged on both sides of the outer surface of the rotating block 56, and a fixed block 58 rotatably connected to the reinforcing rod 57 and movably arranged inside the mounting seat 35, one end of the fixed block 58 is provided with a fixing rod 59 plugged into the mounting block 38, both ends of the reinforcing rod 57 are provided with mounting rods connected to the rotating block 56, a rotating hole matching the mounting rod is opened on the reinforcing rod 57, and a fixing hole connected to the fixing rod 59 is provided on the mounting block 38, and a transmission rod 60 coaxially connected to the rotating block 56 is provided on the third driving structure 36, and the third driving structure 36 controls the rotation of the two groups of rotating blocks 56 through the transmission rod 60, thereby fixing or disassembling the cooling box 6 and the cooling device 7.

[0055] In summary, when the cooling box 6 and the cooling device 7 are disassembled, one end of the liquid guide tube 16, the first oil supply pipe 8 and the second oil supply pipe 9 are disassembled, and the third driving structure 36 is started to drive the transmission rod 60 to rotate, and the transmission rod 60 drives the rotating block 56 to rotate. The rotating block 56 drives the fixed block 58 to move horizontally through the reinforcing rod 57, and the fixed rod 59 is removed from the mounting block 38. The cooling device 7 is moved, and the two groups of mounting blocks 38 are removed from the mounting seat 35. The cooling box 6 is moved to remove the mounting block 38 and the auxiliary slider 55 from the mounting seat 35.

[0056] Embodiment 5

[0057] Reference Figure 1 - Fig.11 , this embodiment is obtained by combining embodiment 1, embodiment 2, embodiment 3 and embodiment 4.

[0058] The cooling device 7 and the first cooling pipe 11 cooperate to cool the hydraulic oil in the first oil supply pipe 8 and the second oil supply pipe 9, the first driving structure 13 and the cooling fan 12 cooperate to dissipate heat and cool the first oil supply pipe 8, the second oil supply pipe 9 and the first cooling pipe 11, the air intake device 15 and the dust-proof vent 14 cooperate to discharge the high-temperature air in the cooling box 6, so as to improve the effect of heat dissipation and cooling, the cooling device 7 directly cools the hydraulic oil in the circulating oil tank 5 through the liquid guide pipe 16 and the second cooling pipe 17, so as to improve the cooling effect of the cooling mechanism;

[0059] The second drive structure 22, the active member 20, the active member 20 and the filter drive belt 19 cooperate to filter the hydraulic oil in the circulating oil tank 5, and the first drive structure 13, the connecting rod 23, the rotating cylinder 40, the auxiliary drive belt 41 and the filter cylinder 39 filter the impurities in the hydraulic oil in the cooling box 10, thereby improving the filtering effect and filtering efficiency of the hydraulic oil;

[0060] The first cleaning box 24, the conveyor belt device 48, the second cleaning belt 49 and the scraper 61 cooperate to perform preliminary cleaning of impurities on the filter transmission belt 19, and the second cleaning box 25, the connecting member 52, the connecting block 53, the limit spring 54 and the arc scraper 28 cooperate to clean the impurities on the filter transmission belt 19 again, thereby improving the cleaning effect of the filter transmission belt 19. The first cleaning box 24 and the second cleaning box 25 can be disassembled and cleaned by the provided limit rod 50, the limit member 27, the connecting plug-in 47 and the supporting socket. The first driving structure 13, the connecting rod 23, the rotating drum 40, the auxiliary transmission belt 41 and the first cleaning belt 30 cooperate to clean the impurities adhered to the filter drum 39, and the scraper strip 31, the collecting box 32, the guide member 33 and the guide rod 42 cooperate to clean the impurities adhered to the rotating drum 40;

[0061] The third driving structure 36, the transmission rod 60, the rotating block 56, the reinforcing rod 57 and the fixed block 58 cooperate to control the fixing rod 59 and the mounting block 38 to be fixed or disassembled, thereby installing or disassembling the cooling box 6 and the cooling equipment 7, thereby improving the installation and disassembly efficiency of the staff. By setting up the auxiliary slider 55, the stability of the connection between the cooling box 6 and the mounting seat 35 can be improved.

[0062] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A hydraulic system for a two-platen injection molding machine, applied to an injection molding machine body (1) and a hydraulic mechanism arranged on the injection molding machine body (1), wherein the hydraulic mechanism comprises an external cylinder structure (4) detachably mounted on the injection molding machine body (1), characterized in that: include: The cooling mechanism comprises a first cooling structure (2) which is detachably mounted on an injection molding machine body (1) and is connected to a hydraulic mechanism, and a second cooling structure (3) which cooperates with the first cooling structure (2); The hydraulic mechanism further comprises a circulating oil tank (5) which is arranged inside the injection molding machine body (1) and is connected to the external oil cylinder structure (4); The first cooling structure (2) is arranged outside the injection molding machine body (1), and the second cooling structure (3) is arranged inside the circulating oil tank (5) and cooperates with the first cooling structure (2) to cool the hydraulic oil in the circulating oil tank (5).

2. A hydraulic system for a two-platen injection molding machine according to claim 1, characterized in that: The cooling mechanism further comprises a cooling box (6) detachably arranged outside the injection molding machine body (1) and a cooling device (7) arranged outside the cooling box (6) and providing circulating cooling liquid to the first cooling structure (2) and the second cooling structure (3) respectively; The cooling mechanism also includes two groups of first oil supply pipes (8) which are connected to the circulating oil tank (5) and one end of which extends into the interior of the cooling tank (6), and a second oil supply pipe (9) which is arranged below the first oil supply pipe (8).

3. A hydraulic system for a two-platen injection molding machine according to claim 2, characterized in that: The first cooling structure (2) comprises a cooling box (10) arranged in a cooling box (6) and connected to a first oil supply pipe (8) and a second oil supply pipe (9) respectively, and a first cooling pipe (11) respectively wound around the first oil supply pipe (8) and the second oil supply pipe (9) and connected to the cooling device (7); The first cooling structure (2) further comprises a heat dissipation fan (12) arranged at the upper inner side of the cooling box (6) and rotatably connected to the outer wall of the cooling box (10), and a first driving structure (13) detachably mounted on the outer wall of the cooling box (6) and controlling the heat dissipation fan (12) to rotate; Wherein, the upper end surface of the cooling box (6) is provided with a dust-proof vent (14); The lower part of the outer surface of the cooling box (6) is provided with an air suction device (15).

4. A hydraulic system for a two-platen injection molding machine according to claim 2, characterized in that: The second cooling structure (3) comprises a liquid guide pipe (16) symmetrically arranged on both sides of the outer surface of the cooling device (7) and extending into the interior of the injection molding machine body (1), and a second cooling pipe (17) having a middle portion arranged in a wave shape inside the circulating oil tank (5), extending out of the circulating oil tank (5) at both ends and connected to the liquid guide pipe (16); Wherein, the cooling box (10) and the circulating oil tank (5) are both provided with a temperature sensor (18).

5. A hydraulic system for a two-platen injection molding machine according to claim 3, characterized in that: The circulating oil tank (5) and the cooling box (10) are respectively equipped with a first filter assembly and a second filter assembly for circulating and filtering the hydraulic oil; Wherein, the first filter assembly is matched with the first oil supply pipe (8) and the second oil supply pipe (9) respectively; The second filter assembly is matched with the second oil supply pipe (9).

6. A hydraulic system for a two-platen injection molding machine according to claim 5, characterized in that: The first filter assembly comprises a filter belt (19) movably arranged in the circulating oil tank (5) and performing filtering, an active member (20) arranged at the upper inner side of the circulating oil tank (5) and controlling the movement of the filter belt (19), and a plurality of groups of driven members (21) symmetrically arranged on the inner wall of the circulating oil tank (5) and assisting the movement of the filter belt (19); Wherein, a second driving structure (22) for controlling the active component (20) to rotate is installed on the outer wall of the circulating oil tank (5); The pipe openings of the first oil supply pipe (8) and the second oil supply pipe (9) are both arranged on the inner side of the filter transmission belt (19); A first cleaning component for cleaning impurities adhering to the filter drive belt (19) is arranged inside the circulating oil tank (5).

7. A hydraulic system for a two-platen injection molding machine according to claim 5, characterized in that: The second filter assembly comprises a filter cartridge (39) rotatably disposed on the inner wall of the cooling box (10) and coaxially disposed with the other end of the second oil supply pipe (9), a rotating cylinder (40) disposed on the upper part of the filter cartridge (39) and rotatably connected to the inner wall of the cooling box (10), and an auxiliary transmission belt (41) for transmission connection between the rotating cylinder (40) and the filter cartridge (39); Wherein, a connecting rod (23) coaxially connected to the cooling fan (12) is provided at one end of the rotating cylinder (40); A second cleaning component for cleaning adhered impurities from the filter cartridge (39) is arranged inside the cooling box (10).

8. A hydraulic system for a two-platen injection molding machine according to claim 6, characterized in that: The first cleaning assembly comprises a first cleaning box (24) arranged at the upper inner side of the circulating oil tank (5) and respectively matched with the filter drive belt (19), and a second cleaning box (25) arranged at one side of the first cleaning box (24); The first cleaning assembly also includes a cleaning conveying structure (26) rotatably mounted on the inner wall of the circulating oil tank (5) and in contact with the outer wall of the filter drive belt (19), and a limiting member (27) symmetrically mounted on the inner wall of the first cleaning box (24) and detachably connected to the cleaning conveying structure (26); The first cleaning assembly further comprises an arc-shaped scraper (28) which is detachably mounted inside the second cleaning box (25) and is used to scrape off impurities adhering to the outer wall of the filter drive belt (19), and a connecting structure (29) which elastically mounts the arc-shaped scraper (28) inside the second cleaning box (25).

9. A hydraulic system for a two-platen injection molding machine according to claim 7, characterized in that: The second cleaning assembly comprises a first cleaning belt (30) arranged on the inner wall of the auxiliary transmission belt (41) and used to clean impurities adhered to the outside of the filter cylinder (39), a scraper bar (31) detachably arranged on the inner wall of the cooling box (10) and used to clean impurities adhered to the outside of the rotating cylinder (40), and a collection box (32) detachably installed under the scraper bar (31) and used to collect and clean impurities; The second cleaning assembly further comprises a guide member (33) symmetrically arranged on the outer wall of the collection box (32) and a guide rod (42) symmetrically installed on the inner wall of the cooling box (10) and slidably connected to the guide member (33); Wherein, the outer wall of the cooling box (6) is provided with a moving part (34) for controlling the movement of the collecting box (32).

10. A hydraulic system for a two-platen injection molding machine according to claim 8, characterized in that: One end of the injection molding machine body (1) is provided with a mounting seat (35) for mounting the cooling box (6) and the cooling device (7), and a fixing component which is arranged on the mounting seat (35) and fixes the cooling box (6) and the cooling device (7) respectively; The fixing assembly comprises a third driving structure (36) detachably mounted on the outer wall of the mounting seat (35), a fixing structure (37) movably arranged inside the mounting seat (35) and detachably connected to the third driving structure (36), and a plurality of mounting blocks (38) respectively arranged on the lower end surfaces of the cooling box (6) and the cooling device (7) and movably connected to the mounting seat (35); The third driving structure (36) is connected to or separated from the mounting block (38) by rotating through the fixing structure (37), thereby fixing or disassembling the cooling box (6) and the cooling device (7).

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