Cooling water supply device of injection molding machine

Abstract

The utility model discloses a cooling water supply device for an injection molding machine, which comprises a case, a cooling cavity and an equipment bin are respectively arranged inside two sides of the case, and a liquid storage cavity is arranged inside the case and above the cooling cavity and the equipment bin. A cooling assembly used for cooling the cooling water of the injection molding machine is arranged at the position, corresponding to the cooling cavity, of the surface of the machine box, a flow guide shell is arranged on the surface of one side of the machine box, an inner cavity of the flow guide shell communicates with an inner cavity of the cooling cavity, and a filtering assembly used for filtering the cooling water of the injection molding machine is arranged on one side of the flow guide shell; through the arrangement of the filtering assembly, the impeller at the top of the connecting shaft rotates under the impact of inclined water flow of the liquid inlet pipe to drive the scraping plates on the two sides of the connecting shaft to rotate together, and the scraping plates continuously scrape impurities adsorbed on the inner wall of the filtering barrel in the rotating process, so that the impurities are prevented from being accumulated and blocking the filtering barrel, and the durability of the filtering effect is ensured; the filtering barrel does not need to be frequently replaced or cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling water supply devices for injection molding machines, in particular to a cooling water supply device for injection molding machines. Background Art

[0002] Usually, injection molding machines manufacture and produce workpieces through molds. In addition, the cooling system is the core part of the injection molding device, which has an extremely important impact on the life of the mold, the production efficiency and quality of the injection molded products. Therefore, cooling water circuits are often needed to cool the injection molding machine.

[0003] At present, the Chinese patent with the announcement number CN219686479U discloses a circulating cooling water device for an injection molding machine, including a water tank, a water pump, a chiller, a first water pipe, a second water pipe and a third water pipe. Two vertical partitions are provided in the water tank to divide the interior of the water tank into a left chamber, a middle chamber and a right chamber. A plurality of water permeable holes are provided on the vertical partitions. Two dispersion boxes are respectively provided in the left chamber and the middle chamber, and a water hole is provided on the bottom wall of the dispersion box; the first water pipe is connected to the drainage end of the chiller, and the first water pipe is connected to the two dispersion boxes through the second water pipe and the third water pipe respectively; the water pump pumps water in the right chamber into the injection molding machine, and then returns to the left chamber from the injection molding machine. The chiller pumps water in the left chamber to the inside of the chiller for cooling and then transports it to the dispersion box; the utility model cools the circulating water through the chiller, does not require the installation of a cooling tower, and does not require excavation of the ground or construction of pipe supports for laying water pipes, so the construction cost is low and the construction period is short.

[0004] The above-mentioned circulating cooling water device for injection molding machines has some problems in use. During long-term use, the filter component may be clogged due to accumulation of impurities, requiring frequent replacement or cleaning of the filter, which increases the maintenance workload and cost. Utility Model Content

[0005] The purpose of the present utility model is to provide a cooling water supply device for an injection molding machine, so as to solve the problem raised in the above background technology that during long-term use, the filter component may be clogged due to accumulation of impurities, requiring frequent replacement or cleaning of the filter screen, which increases the maintenance workload and cost.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A cooling water supply device for an injection molding machine, comprising a chassis, wherein a cooling chamber and an equipment compartment are respectively provided inside the chassis on both sides, a liquid storage chamber is provided inside the chassis and above the cooling chamber and the equipment compartment, a cooling assembly for cooling cooling water for the injection molding machine is provided on the surface of the chassis at a position corresponding to the cooling chamber, a flow guide shell is provided on one side surface of the chassis, the inner cavity of the flow guide shell is communicated with the inner cavity of the cooling chamber, a filter assembly for filtering cooling water for the injection molding machine is provided on one side of the flow guide shell, the inner cavity of the equipment compartment is provided with a pumping assembly for transporting cooling water in the cooling chamber to the liquid storage chamber, and a discharge pipe is plugged into the other side surface of the chassis at a position corresponding to the liquid storage chamber;

[0008] The filter assembly includes a filter bin connected to the other side of the guide shell, a filter barrel is plugged into the interior of the filter bin, a bearing is inlaid on the bottom inner wall of the filter barrel, a connecting shaft is plugged into the inner cavity of the bearing, a connecting ring is fixedly sleeved on the surface of the connecting shaft, connecting plates are fixedly connected on both sides of the connecting ring, the facing ends of the two groups of connecting plates are connected to scrapers through connecting pieces, the facing ends of the two groups of scrapers respectively contact the inner wall of the filter barrel, the top of the connecting shaft is connected to an impeller through a fixing piece, and a liquid inlet pipe is plugged into the mouth of the filter barrel, and one end of the liquid inlet pipe is inclined and points to the edge of the impeller.

[0009] Preferably, the pumping assembly includes a water pump fixedly installed in the inner cavity of the equipment compartment, the input end of the water pump is connected to a spiral tube, the other end of the spiral tube is connected to the inner cavity of the cooling chamber, a fan is fixedly connected to the inner wall of one side of the equipment compartment and at a position corresponding to the spiral tube, the air outlet end of the fan is aligned with the middle of the spiral tube, the output end of the water pump is connected to a delivery pipe, the other end of the delivery pipe winds upward and extends to the liquid storage chamber, and the other end of the delivery pipe is connected to a check valve.

[0010] Preferably, the cooling assembly includes a plurality of semiconductor cooling fins embedded in the inner walls of both sides of the cooling cavity, and the heating ends of the semiconductor cooling fins on both sides respectively penetrate the surface of the corresponding side chassis and extend to the outside of the chassis.

[0011] Preferably, the connecting member includes two groups of connecting plates with connecting plates on both sides of the opposite ends, and the two groups of connecting plates on the same side are respectively fixedly installed on the surface of the corresponding side scraper, and the two groups of connecting plates on the same side are respectively fixedly connected to one end of the corresponding side connecting plate by bolts.

[0012] Preferably, the fixing member includes a limit plate fixedly sleeved on the surface of the connecting shaft and corresponding to the bottom of the impeller, one end surface of the connecting shaft is provided with an external thread, one end of the connecting shaft passes through the impeller and is threadedly connected to a nut via the external thread.

[0013] Preferably, a limiting ring is fixedly connected to the inner cavity of the upper opening of the filter bin, a fixing ring is in contact with the upper side of the limiting ring, the fixing ring is solidly sleeved on the opening of the filter barrel, and a handle is fixedly connected to the top surface of the fixing ring.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model is provided with a filter assembly. The impeller on the top of the connecting shaft rotates under the impact of the inclined water flow in the liquid inlet pipe, driving the scrapers on both sides of the connecting shaft to rotate together. The scrapers continuously scrape off impurities adsorbed on the inner wall of the filter barrel during rotation, preventing impurities from accumulating and clogging the filter barrel, thereby ensuring the durability of the filtering effect. There is no need to frequently replace or clean the filter barrel, reducing the workload and maintenance costs of the staff. In addition, this self-cleaning function does not require an additional power source, and uses the flow energy of cooling water to achieve automatic cleaning, which is energy-saving and environmentally friendly.

[0016] 2. Through the setting of the pumping component, the water pump of the utility model can stably transport the cooling water in the cooling chamber to the liquid storage chamber, ensuring the circulation of the cooling water. At the same time, the fan cools the spiral tube with air, and the spiral tube increases the contact area with the wind, thereby improving the cooling effect. The setting of the check valve effectively prevents the cooling water from flowing back, thereby ensuring the stability and reliability of the pumping process.

[0017] 3. The utility model provides a fixing part, in which the limit plate and nut can firmly fix the impeller on the connecting shaft to prevent the impeller from loosening or falling off during rotation. When the impeller needs to be repaired or replaced, the nut can be easily removed and the impeller can be removed from the connecting shaft.

[0018] 4. The utility model provides a connecting piece, which fixes the connecting piece and the connecting plate with bolts, so that the connection between the scraper and the connecting plate is firm and reliable, and easy to disassemble and install, making it convenient to replace or repair the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the cooling water supply device for an injection molding machine according to the present invention;

[0020] Figure 2 This is a schematic cross-sectional view of the chassis of the present invention;

[0021] Figure 3 This is a schematic cross-sectional view of the filter chamber of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the filter barrel of the utility model;

[0023] Figure 5It is a structural diagram of the external thread of the utility model.

[0024] In the figure: 100, chassis; 101, semiconductor refrigeration plate; 102, guide shell; 103, filter chamber; 104, liquid inlet pipe; 105, cooling chamber; 107, equipment chamber; 108, discharge pipe; 109, liquid storage chamber; 200, water pump; 201, cooling fan; 202, spiral tube; 203, delivery pipe; 204, check valve; 300, filter barrel; 301, impeller; 302, fixing ring; 303, limiting ring; 304, handle; 400, scraper; 401, connecting plate; 402, connecting shaft; 403, bearing; 404, limiting plate; 405, external thread; 406, nut; 407, connecting plate; 408, bolt; 409, connecting ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-5 , this embodiment provides a cooling water supply device for an injection molding machine, comprising a chassis 100, wherein cooling cavities 105 and equipment compartments 107 are respectively provided on both sides of the chassis 100, a liquid storage cavity 109 is provided inside the chassis 100 and above the cooling cavity 105 and the equipment compartment 107, a cooling component for cooling the cooling water of the injection molding machine is provided on the surface of the chassis 100 and at a position corresponding to the cooling cavity 105, a flow guide shell 102 is provided on one side surface of the chassis 100, the inner cavity of the flow guide shell 102 is connected to the inner cavity of the cooling cavity 105, a filter component for filtering the cooling water of the injection molding machine is provided on one side of the flow guide shell 102, the inner cavity of the equipment compartment 107 is provided with a pumping component for transporting the cooling water in the cooling cavity 105 to the liquid storage cavity 109, and a discharge pipe 108 is plugged into the other side surface of the chassis 100 and at a position corresponding to the liquid storage cavity 109;

[0027] The filter assembly includes a filter bin 103 connected to the other side of the guide shell 102, a filter barrel 300 is plugged into the filter bin 103, a bearing 403 is embedded in the bottom inner wall of the filter barrel 300, a connecting shaft 402 is plugged into the inner cavity of the bearing 403, a connecting ring 409 is fixedly sleeved on the surface of the connecting shaft 402, and connecting plates 401 are fixedly connected on both sides of the connecting ring 409, and the facing ends of the two groups of connecting plates 401 are connected to scrapers 400 through connectors, and the facing ends of the two groups of scrapers 400 respectively contact the inner wall of the filter barrel 300, the top of the connecting shaft 402 is connected to the impeller 301 through a fixing member, and the mouth of the filter barrel 300 is plugged into the liquid inlet pipe 104, and the liquid inlet pipe 104 is plugged into the liquid inlet pipe 104. One end of the liquid pipe 104 is tilted and points to the edge of the impeller 301. Through the setting of the filter assembly, the impeller 301 on the top of the connecting shaft 402 rotates under the impact of the tilted water flow in the liquid inlet pipe 104, driving the scrapers 400 on both sides of the connecting shaft 402 to rotate together. During the rotation process, the scrapers 400 continuously scrape off the impurities adsorbed on the inner wall of the filter barrel 300 to prevent the accumulation of impurities and blockage of the filter barrel 300, thereby ensuring the durability of the filtering effect. There is no need to frequently replace or clean the filter barrel 300, reducing the workload and maintenance costs of the staff. In addition, this self-cleaning function does not require an additional power source, and uses the flow energy of cooling water to achieve automatic cleaning, which is energy-saving and environmentally friendly.

[0028] Furthermore, the pumping assembly includes a water pump 200 fixedly installed in the inner cavity of the equipment compartment 107, the input end of the water pump 200 is connected to a spiral tube 202, the other end of the spiral tube 202 is connected to the inner cavity of the cooling chamber 105, and a cooling fan 201 is fixedly connected to the inner wall of one side of the equipment compartment 107 and at a position corresponding to the spiral tube 202, the air outlet end of the cooling fan 201 is aligned with the middle of the spiral tube 202, and the output end of the water pump 200 is connected to a delivery pipe 203, the other end of the delivery pipe 203 is meandering upward and It extends to the liquid storage chamber 109, and the other end of the delivery pipe 203 is connected to a check valve 204. Through the setting of the pumping component, the water pump 200 can stably deliver the cooling water in the cooling chamber 105 to the liquid storage chamber 109, ensuring the circulation of the cooling water. At the same time, the cooling fan 201 performs air cooling and heat dissipation on the spiral tube 202. The spiral tube 202 increases the contact area with the wind and improves the cooling effect. The setting of the check valve 204 effectively prevents the cooling water from flowing back, ensuring the stability and reliability of the pumping process.

[0029] Furthermore, the cooling component includes several groups of semiconductor refrigeration plates 101 embedded in the inner walls on both sides of the cooling cavity 105. The heating ends of the semiconductor refrigeration plates 101 on both sides respectively penetrate the surface of the corresponding side chassis 100 and extend to the outside of the chassis 100. Through the setting of the cooling component, the semiconductor refrigeration plates 101 can efficiently cool the cooling water in the cooling cavity 105. The heating end thereof extends to the outside of the chassis 100, which can dissipate heat in time, thereby ensuring the stability and continuity of the cooling effect.

[0030] It is worth noting that the connecting member includes two groups of connecting plates 401 with connecting pieces 407 on both sides of the opposite ends. The two groups of connecting pieces 407 on the same side are respectively fixedly installed on the surface of the corresponding side scraper 400, and the two groups of connecting pieces 407 on the same side are respectively fixedly connected to one end of the corresponding side connecting plate 401 through bolts 408. Through the setting of the connecting member, the connecting member fixes the connecting piece 407 to the connecting plate 401 through the bolt 408, so that the connection between the scraper 400 and the connecting plate 401 is firm and reliable, and easy to disassemble and install, so as to facilitate the replacement or repair of the scraper 400.

[0031] Preferably, the fixing member includes a limit plate 404 fixedly mounted on the surface of the connecting shaft 402 and corresponding to the bottom of the impeller 301. An external thread 405 is provided on the surface of one end of the connecting shaft 402. One end of the connecting shaft 402 passes through the impeller 301 and is threadedly connected to a nut 406 through the external thread 405. Through the setting of the fixing member, the limit plate 404 and the nut 406 in the fixing member can firmly fix the impeller 301 on the connecting shaft 402 to prevent the impeller 301 from loosening or falling off during rotation. When the impeller 301 needs to be repaired or replaced, the nut 406 can be easily removed and the impeller 301 can be removed from the connecting shaft 402.

[0032] Furthermore, a limiting ring 303 is fixedly connected to the inner cavity of the upper mouth of the filter bin 103, and a fixing ring 302 is in contact with the upper part of the limiting ring 303. The fixing ring 302 is solidly sleeved on the mouth of the filter barrel 300, and a handle 304 is fixedly connected to the top surface of the fixing ring 302. Through the setting of the limiting ring 303 and the fixing ring 302, the limiting ring 303 of the inner cavity of the upper mouth of the filter bin 103 and the fixing ring 302 at the mouth of the filter barrel 300 cooperate with each other, which facilitates the installation and disassembly of the filter barrel 300, and the handle 304 can easily take out the filter barrel 300 for cleaning and maintenance operations, thereby improving maintenance efficiency.

[0033] Working principle;

[0034] When the cooling water of the injection molding machine needs to be cooled and filtered, the cooling water first enters the filter assembly through the liquid inlet pipe 104. One end of the liquid inlet pipe 104 is tilted and points to the edge of the impeller 301. The cooling water impacts the impeller 301 to rotate it. The impeller 301 is connected to the connecting shaft 402 through a fixing member, driving the connecting shaft 402 to rotate, and then driving the scrapers 400 on both sides of the connecting shaft 402 to rotate. The two sets of scrapers 400 continuously contact the inner wall of the filter barrel 300 during the rotation process, scraping off impurities adsorbed on the inner wall of the filter barrel 300 to prevent impurities from clogging the filter barrel 300 and ensure the filtering effect.

[0035] The filtered cooling water flows into the guide housing 102 and then into the cooling chamber 105. The semiconductor refrigeration chips 101 embedded on the inner walls of both sides of the cooling chamber 105 are in operation. The cooling ends of the semiconductor refrigeration chips 101 cool the cooling water in the cooling chamber 105, thereby reducing the temperature of the cooling water.

[0036] The water pump 200 in the equipment compartment 107 is started, and cooling water is drawn from the cooling chamber 105 through the spiral tube 202. The cooling water enters the delivery pipe 203 through the output end of the water pump 200 and is pumped into the liquid storage chamber 109. At the same time, the check valve 204 connected to the other end of the delivery pipe 203 prevents the cooling water from flowing back. The cooling water in the liquid storage chamber 109 can be discharged through the discharge pipe 108 for subsequent use or returned to the injection molding machine for recycling;

[0037] When the scraper 400 is worn out due to long-term use and needs to be replaced, first hold the handle 304 and pull it upward to separate the filter barrel 300 from the inner cavity of the filter bin 103, then remove the nut 406 on the top of the connecting shaft 402, release the restriction on the impeller 301, and take out the impeller 301, then remove the bolt 408 at one end of the connecting plate 401, release the restriction on the scraper 400, and take out the scraper 400, replace it with a new scraper 400, and use the bolt 408 to pass through one set of connecting pieces 407 and the connecting plate 401 and threadedly connect it to the surface of the other set of connecting pieces 407 to fix the scraper 400, then install the impeller 301 back, and place the filter barrel 300 in the inner cavity of the filter bin 103, so that the fixing ring 302 installed at the mouth of the filter barrel 300 contacts the top surface of the limit ring 303.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling water supply device for an injection molding machine, characterized in that: The invention comprises a chassis (100), wherein a cooling cavity (105) and an equipment compartment (107) are respectively provided inside the chassis (100) on both sides, a liquid storage cavity (109) is provided inside the chassis (100) and above the cooling cavity (105) and the equipment compartment (107), a cooling assembly for cooling the cooling water of the injection molding machine is provided on the surface of the chassis (100) and at a position corresponding to the cooling cavity (105), and a guide shell is provided on one side surface of the chassis (100) The inner cavity of the flow-guiding housing (102) is connected to the inner cavity of the cooling cavity (105); a filter assembly for filtering the cooling water of the injection molding machine is provided on one side of the flow-guiding housing (102); a pumping assembly for conveying the cooling water in the cooling cavity (105) to the liquid storage cavity (109) is provided in the inner cavity of the equipment compartment (107); and a discharge pipe (108) is plugged into the other side surface of the chassis (100) at a position corresponding to the liquid storage cavity (109); The filter assembly comprises a filter chamber (103) connected to the other side of the flow guide housing (102); a filter barrel (300) is inserted into the interior of the filter chamber (103); a bearing (403) is embedded in the bottom inner wall of the filter barrel (300); a connecting shaft (402) is inserted into the inner cavity of the bearing (403); a connecting ring (409) is fixedly sleeved on the surface of the connecting shaft (402); and connecting plates (409) are fixedly connected to both sides of the connecting ring (409). 01), the two groups of connecting plates (401) are connected to the scraper (400) at one end facing each other through a connecting piece, and the two groups of scraper (400) are respectively in contact with the inner wall of the filter barrel (300), and the top of the connecting shaft (402) is connected to the impeller (301) through a fixing piece, and the mouth of the filter barrel (300) is plugged with a liquid inlet pipe (104), and one end of the liquid inlet pipe (104) is inclined and points to the edge of the impeller (301).

2. The cooling water supply device for an injection molding machine according to claim 1, characterized in that; The pumping assembly comprises a water pump (200) fixedly mounted in the inner cavity of the equipment bin (107); the input end of the water pump (200) is connected to a spiral tube (202); the other end of the spiral tube (202) is connected to the inner cavity of the cooling chamber (105); a cooling fan (201) is fixedly connected to an inner wall of one side of the equipment bin (107) and at a position corresponding to the spiral tube (202); the air outlet end of the cooling fan (201) is aligned with the middle of the spiral tube (202); the output end of the water pump (200) is connected to a delivery pipe (203); the other end of the delivery pipe (203) meanders upward and extends to the liquid storage chamber (109); the other end of the delivery pipe (203) is connected to a check valve (204).

3. The cooling water supply device for an injection molding machine according to claim 1, characterized in that: The cooling assembly comprises a plurality of groups of semiconductor cooling fins (101) embedded in the inner walls of both sides of the cooling cavity (105), and the heating ends of the semiconductor cooling fins (101) on both sides respectively penetrate the surface of the corresponding side chassis (100) and extend to the outside of the chassis (100).

4. The cooling water supply device for an injection molding machine according to claim 1, characterized in that: The connecting member comprises two groups of connecting plates (401) with connecting pieces (407) provided on both sides of opposite ends, the two groups of connecting pieces (407) on the same side are respectively fixedly mounted on the surface of the corresponding side scraper (400), and the two groups of connecting pieces (407) on the same side are respectively fixedly connected to one end of the corresponding side connecting plate (401) by bolts (408).

5. The cooling water supply device for an injection molding machine according to claim 4, characterized in that: The fixing member comprises a limiting plate (404) fixedly sleeved on the surface of the connecting shaft (402) and corresponding to the bottom of the impeller (301); an external thread (405) is provided on one end surface of the connecting shaft (402); one end of the connecting shaft (402) passes through the impeller (301) and is threadedly connected to a nut (406) via the external thread (405).

6. A cooling water supply device for an injection molding machine according to any one of claims 1 to 5, characterized in that: The inner cavity of the upper opening of the filter bin (103) is fixedly connected to a limiting ring (303), the upper portion of the limiting ring (303) is in contact with a fixing ring (302), the fixing ring (302) is solidly sleeved on the opening of the filter barrel (300), and the top surface of the fixing ring (302) is fixedly connected to a handle (304).

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