A cleaning device for the interior of an injection mold

Abstract

The utility model discloses a kind of cleaning devices for injection mold inner cavity, including box, clamping assembly is arranged in the box, fixed plate is fixedly installed in the box, the top side of fixed plate is equipped with sliding slot, multiple sliding plates are slidably installed in sliding slot, the top side of multiple sliding plates is fixedly connected with same gear ring, by two electric push rods drive clamping plate to move towards each other, cooperate with the antiskid structure of protective pad, different specifications of mold body can be formed stable clamping, avoid shaking influence effect in cleaning process, cylinder drives mold body to descend vertically, make cleaning cylinder extend into inner cavity, the meshing transmission of transmission gear and gear ring ensures that cleaning cylinder high -speed rotates, outside brush can remove adherent stain by scrubbing, cooperate with the combination of water pump in water pumping component, suction pipe, delivery pipe and spray head, water flows through the through-hole of cleaning cylinder and is directly shot into inner cavity, form the synergistic effect of scrubbing and flushing, compared with traditional single flushing mode, cleaning speed and efficiency can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of mold cleaning technology, and in particular to a cleaning device for the inner cavity of injection molds. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. Injection molding involves injecting fully molten plastic material, stirred by a screw, into the cavity of an injection mold under high pressure. After cooling and solidification, the molded product is obtained. The advantages of this method are fast production speed, high efficiency, automated operation, a wide variety of colors and shapes, shapes ranging from simple to complex, sizes ranging from large to small, precise product dimensions, easy product updates and replacements, and the ability to produce complex-shaped parts. Injection molding is suitable for mass production and molding processing fields such as complex-shaped products.

[0003] After the product is injected into the mold, the inner wall is prone to residual plastic slag, mold release agent residue, oil stains and other impurities. If not cleaned in time, it will directly affect the quality of subsequent products and the precision of the mold. In the existing technology, most cleaning methods rely on a single nozzle to rinse. However, using only nozzle rinsing is not ideal. On the one hand, the water flow impact force alone is not enough to completely remove the highly adhesive residue. On the other hand, the existing rinsing mechanism does not have a wastewater recycling and treatment system. A large amount of wastewater carrying residue is directly discharged, which not only wastes water resources but also increases the cost of industrial wastewater treatment. Therefore, a cleaning device for the inner cavity of injection mold is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cleaning device for the inner cavity of injection molds, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cleaning device for the inner cavity of an injection mold includes a housing, a clamping assembly inside the housing, a fixed plate fixedly installed inside the housing, a groove on the top side of the fixed plate, multiple sliding plates slidably installed in the groove, a common toothed ring fixedly connected to the top side of the multiple sliding plates, a cleaning cylinder fixedly installed on the top side of the toothed ring, two through holes on the outer side of the cleaning cylinder, multiple brushes fixedly connected to the outer side of the cleaning cylinder, a driving assembly and a water pumping assembly respectively provided on the top and bottom sides of the fixed plate, multiple springs fixedly installed on the bottom side of the housing, a common filter plate fixedly connected to the other end of the multiple springs, and an anti-clogging assembly provided below the filter plate.

[0007] Preferably, the clamping assembly includes a cylinder fixedly installed on the top side of the housing, the output end of the cylinder passing through the housing and fixedly connected to a connecting plate, the connecting plate being U-shaped, electric push rods fixedly installed on both sides of the connecting plate, the output ends of the two electric push rods passing through the connecting plate and fixedly connected to clamping plates, protective pads fixedly connected to the opposite surfaces of the two clamping plates, the opposite surfaces of the two protective pads clamping the same mold body, and a portion of the cleaning cylinder being located within the mold body.

[0008] Preferably, the drive assembly includes a fixed frame fixedly mounted on the bottom side of a fixed plate. The fixed frame is U-shaped, and a motor is fixedly mounted on the bottom side of the fixed frame. The output end of the motor rotates through the fixed frame and the fixed plate and is fixedly sleeved with a transmission gear. The transmission gear meshes with a gear ring.

[0009] Preferably, the water pumping assembly includes a water pump fixedly installed on the bottom side of a fixed plate, an extraction pipe fixedly installed on one side of the water pump, the other end of the extraction pipe extending to the bottom of the filter plate, a delivery pipe fixedly installed on the other side of the water pump, the other end of the delivery pipe extending into the cleaning cylinder, and nozzles fixedly connected to both sides of the delivery pipe, with the two nozzles facing the through holes opened in the cleaning cylinder.

[0010] Preferably, the anti-clogging component includes a circular hole on one side of the housing, a rotating rod inside the circular hole, one end of the rotating rod being rotatably connected to the inner wall of one side of the housing, the other end of the rotating rod being fixedly connected to a second bevel gear, and a cam being fixedly sleeved on the outer side of the rotating rod, the cam being located below the filter plate.

[0011] Preferably, a connecting frame is fixedly installed on one side of the housing. The connecting frame is U-shaped and has round holes on both sides. The same transmission rod is installed in the two round holes. The top and bottom ends of the transmission rod are respectively fixedly connected to a second synchronous wheel and a first bevel gear. The first bevel gear meshes with the second bevel gear.

[0012] Preferably, a square hole is provided on one side of the housing, and a first synchronous pulley is fixedly sleeved on the outside of the output end of the motor. The first synchronous pulley and the second synchronous pulley share the same synchronous belt, and a part of the synchronous belt is located in the square hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Two electric push rods drive the clamping plates to move in opposite directions. Combined with the anti-slip structure of the protective pad, it can stably clamp the mold body of different sizes, avoiding shaking during the cleaning process and affecting the effect. The cylinder drives the mold body to move vertically downward, so that the cleaning cylinder extends into the inner cavity. The meshing transmission of the transmission gear and the gear ring ensures that the cleaning cylinder rotates at high speed. The outer brush can remove adhesive stains by brushing. In conjunction with the water pump in the water pumping assembly, water is injected into the inner cavity through the combination of the extraction pipe, delivery pipe and nozzle, forming a synergistic effect of brushing and rinsing. Compared with the traditional single rinsing method, it can greatly improve the cleaning speed and efficiency.

[0015] 2. The filter plate, with its precision mesh, intercepts plastic slag and oil particles in the wastewater. The motor, through a transmission chain consisting of a first synchronous pulley, a synchronous belt, and a second synchronous pulley, drives the first and second bevel gears at the bottom of the transmission rod to mesh. This causes the cam on the outside of the rotating rod to continuously beat the filter plate. This continuous beating prevents the filter plate from clogging, ensuring stable water filtration efficiency. The filter plate also prevents impurities from entering the water pump and causing impeller wear, thus extending the equipment's lifespan. Furthermore, the filtered clean water is pumped back to the cleaning process, achieving water recycling. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of some parts of the cleaning cylinder structure of this utility model;

[0019] Figure 4 This is a schematic diagram of some parts of the water pump structure of this utility model.

[0020] In the diagram: 1. Housing; 2. Cylinder; 3. Connecting plate; 4. Electric push rod; 5. Clamping plate; 6. Mold body; 7. Fixing plate; 8. Fixing frame; 9. Motor; 10. Transmission gear; 11. Slide groove; 12. Slide plate; 13. Gear ring; 14. Cleaning cylinder; 15. Brush; 16. Water pump; 17. Extraction pipe; 18. Delivery pipe; 19. Nozzle; 20. First synchronous pulley; 21. Connecting frame; 22. Transmission rod; 23. Second synchronous pulley; 24. Synchronous belt; 25. First bevel gear; 26. Rotating rod; 27. Second bevel gear; 28. Cam; 29. ​​Spring; 30. Filter plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figure 1-4 A cleaning device for the inner cavity of an injection mold includes a housing 1, a clamping assembly inside the housing 1, a fixing plate 7 fixedly installed inside the housing 1, a groove 11 on the top side of the fixing plate 7, multiple sliding plates 12 slidably installed in the groove 11, a toothed ring 13 fixedly connected to the top side of the multiple sliding plates 12, a cleaning cylinder 14 fixedly installed on the top side of the toothed ring 13, two through holes on the outer side of the cleaning cylinder 14, multiple brushes 15 fixedly connected to the outer side of the cleaning cylinder 14, a driving assembly and a water pumping assembly respectively provided on the top and bottom sides of the fixing plate 7, multiple springs 29 fixedly installed on the bottom side of the housing 1, the other ends of the multiple springs 29 fixedly connected to a filter plate 30, an anti-clogging assembly provided below the filter plate 30, and a driving assembly including a fixing frame 8 fixedly installed on the bottom side of the fixing plate 7, the fixing frame 8 being U-shaped, a motor 9 fixedly installed on the bottom side of the fixing frame 8, the output end of the motor 9 rotating through the fixing plate 7. A fixed frame 8 and a fixed plate 7 are fixedly fitted with a transmission gear 10, which meshes with a gear ring 13. Multiple brushes 15 are fixedly installed on the outside of a cleaning cylinder 14. When the inner cavity of the mold needs to be cleaned, the motor 9 is started to drive the transmission gear 10 to rotate. Because the transmission gear 10 meshes with the gear ring 13, the gear ring 13 will drive the cleaning cylinder 14 to rotate under the meshing transmission of the transmission gear 10. Since multiple brushes 15 are set on the outside of the cleaning cylinder 14, the multiple brushes 15 can clean the dirt attached to the inner cavity of the mold body 6 during the rotation. During the cleaning process, the multiple brushes 15, together with the set water pump component, can achieve brushing and cleaning at the same time. In addition, multiple sliding plates 12 are set to provide a stable guiding effect during the rotation of the gear ring 13, so that it can only rotate, thereby ensuring that the gear ring 13 always meshes with the transmission gear 10.

[0023] Specifically, the clamping assembly includes a cylinder 2 fixedly installed on the top side of the housing 1. The output end of the cylinder 2 passes through the housing 1 and is fixedly connected to a connecting plate 3. The connecting plate 3 is U-shaped, and electric push rods 4 are fixedly installed on both sides of the connecting plate 3. The output ends of the two electric push rods 4 pass through the connecting plate 3 and are fixedly connected to clamping plates 5. Protective pads are fixedly connected to the opposite surfaces of the two clamping plates 5. The opposite surfaces of the two protective pads clamp the same mold body 6. A part of the cleaning cylinder 14 is located inside the mold body 6. By setting two clamping plates 5, when it is necessary to clamp the mold to be cleaned, the mold body 6 to be cleaned is placed between the two clamping plates 5, and then the two electric push rods 4 are started simultaneously to bring the two clamping plates 5 closer to each other. Then the two clamping plates 5 can complete the tight clamping of the mold body 6. The opposite surfaces of the two clamping plates 5 are provided with protective pads, which can play a non-slip role, thereby ensuring that the mold body 6 is clamped more tightly and ensuring that the mold body 6 will not shake during the subsequent rinsing process.

[0024] Specifically, the pumping assembly includes a water pump 16 fixedly mounted on the bottom side of the fixing plate 7, an extraction pipe 17 fixedly mounted on one side of the water pump 16, the other end of the extraction pipe 17 extending to the bottom of the filter plate 30, and a delivery pipe 18 fixedly mounted on the other side of the water pump 16, the other end of the delivery pipe 18 extending into the cleaning cylinder 14. Spray nozzles 19 are fixedly connected to both sides of the delivery pipe 18, with each spray nozzle 19 facing a through hole in the cleaning cylinder 14. Through the water pump 16, the outer brush 15 is driven to clean the cleaning cylinder 14. During the process of cleaning the mold cavity, the water pump 16 is started simultaneously. The water pump 16 draws water from the bottom of the box 1 through the extraction pipe 17, and then delivers the water to the two nozzles 19 through the delivery pipe 18. Since the two nozzles 19 are respectively facing the two through holes opened in the cleaning cylinder 14, the water sprayed from the two nozzles 19 will be sprayed into the inner cavity through the two through holes. Combined with the cleaning of the brush 15, brushing and rinsing can be achieved at the same time. Compared with the method of relying solely on water for rinsing, brushing and rinsing at the same time is cleaner and more effective.

[0025] Specifically, the anti-clogging component includes a circular hole on one side of the housing 1, with a rotating rod 26 installed inside the hole. One end of the rotating rod 26 is rotatably connected to the inner wall of one side of the housing 1, and the other end of the rotating rod 26 is fixedly connected to a second bevel gear 27. A cam 28 is fixedly sleeved on the outer side of the rotating rod 26, and the cam 28 is located below the filter plate 30. A connecting frame 21 is fixedly installed on one side of the housing 1. The connecting frame 21 is U-shaped, with circular holes on both sides. A transmission rod 22 is installed in both circular holes. A second synchronous pulley 23 and a first bevel gear 25 are fixedly connected to the top and bottom ends of the transmission rod 22, respectively. The first bevel gear 25 meshes with the second bevel gear 27. A square hole is opened on one side of the housing 1, and a first synchronous pulley 20 is fixedly sleeved on the outer side of the output end of the motor 9. The first synchronous pulley 20 meshes with the second synchronous pulley 27. The pulleys 23 share the same synchronous belt 24. A portion of the synchronous belt 24 is located within a square hole. A first synchronous pulley 20 is fixedly sleeved on the outside of the output end of the motor 9. The first synchronous pulley 20 and the second synchronous pulley 23 share the same synchronous belt 24. Under the transmission of the synchronous belt 24, the second synchronous pulley 23 synchronously drives the transmission rod 22 connected to it to rotate. Since the bottom end of the transmission rod 22 is fixedly connected to the first bevel gear 25, and the first bevel gear 25 meshes with the second bevel gear 27, under the meshing transmission of the first bevel gear 25, the second bevel gear 27 synchronously drives the rotating rod 26 connected to it to rotate. This causes the cam 28 fixedly sleeved on the outside of the rotating rod 26 to reciprocate and beat the filter plate 30. Beating the filter plate 30 can prevent the filter plate 30 from becoming clogged.

[0026] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer for control.

[0027] In use: Place the mold body 6 to be cleaned between the two clamping plates 5, and simultaneously start the two electric push rods 4 to drive the clamping plates 5 to move towards each other. The protective pads on the opposite surfaces of the clamping plates 5 achieve anti-slip and tight clamping of the mold body 6. After clamping, start the cylinder 2 to drive the mold body 6 to move vertically downward, so that the cleaning cylinder 14 accurately enters the mold cavity. At this time, start the motor 9, and its output shaft drives the transmission gear 10 to rotate. Through the meshing transmission with the gear ring 13, the cleaning cylinder 14 is driven to rotate at high speed. Multiple brushes 15 evenly distributed on the outside then perform high-frequency brushing of the stains attached to the mold cavity. At the same time as mechanical brushing, the water pump 16 is started simultaneously to draw the cleaning water source from the water storage cavity at the bottom of the box 1 through the extraction pipe 17, and deliver it to the two nozzles 19 through the delivery pipe 18. The spray direction of the nozzles 19 is aligned with the two through holes opened in the cleaning cylinder 14, so that the water flows directly into the mold through the through holes. The inner cavity forms a combined cleaning operation of brushing and rinsing. During the rinsing process, the wastewater carrying impurities falls onto the filter plate 30. The filter plate 30 achieves solid-liquid separation through a precision mesh structure, effectively intercepting impurity particles and preventing them from entering the water body and causing wear on the impeller of the water pump 16. Furthermore, a first synchronous pulley 20 is fixedly sleeved on the outer side of the output end of the motor 9. The first synchronous pulley 20 drives the second synchronous pulley 23 to rotate through the synchronous belt 24, which in turn drives the transmission rod 22 to rotate. The first bevel gear 25 and the second bevel gear 27 at the bottom of the transmission rod 22 mesh, converting the rotational motion into the rotation of the vertical axis of the rotating rod 26. This causes the cam 28, which is fixedly sleeved on the outer side of the rotating rod 26, to perform reciprocating circular motion. The eccentric structure of the cam 28 continuously beats the filter plate 30, effectively preventing the filter holes from becoming clogged through mechanical vibration, thereby ensuring the continuous and stable operation of the filter plate 30.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.

[0029] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cleaning device for the inner cavity of an injection mold, comprising a housing (1), characterized in that, The box (1) is equipped with a clamping assembly. A fixing plate (7) is fixedly installed inside the box (1). A sliding groove (11) is opened on the top side of the fixing plate (7). Multiple sliding plates (12) are slidably installed in the sliding groove (11). The top side of the multiple sliding plates (12) is fixedly connected to the same toothed ring (13). A cleaning cylinder (14) is fixedly installed on the top side of the toothed ring (13). Two through holes are opened on the outside of the cleaning cylinder (14). Multiple brushes (15) are fixedly connected on the outside of the cleaning cylinder (14). A driving assembly and a water pumping assembly are respectively provided on the top and bottom sides of the fixing plate (7). Multiple springs (29) are fixedly installed on the bottom side of the box (1). The other end of the multiple springs (29) is fixedly connected to the same filter plate (30). An anti-clogging assembly is provided below the filter plate (30).

2. The cleaning device for the inner cavity of an injection mold according to claim 1, characterized in that, The clamping assembly includes a cylinder (2) fixedly installed on the top side of the housing (1). The output end of the cylinder (2) passes through the housing (1) and is fixedly connected to a connecting plate (3). The connecting plate (3) is U-shaped. Electric push rods (4) are fixedly installed on both sides of the connecting plate (3). The output ends of the two electric push rods (4) pass through the connecting plate (3) and are fixedly connected to clamping plates (5). Protective pads are fixedly connected to the opposite surfaces of the two clamping plates (5). The opposite surfaces of the two protective pads clamp the same mold body (6). A part of the cleaning cylinder (14) is located inside the mold body (6).

3. A cleaning device for the inner cavity of an injection mold according to claim 1, characterized in that, The drive assembly includes a fixed frame (8) fixedly installed on the bottom side of a fixed plate (7). The fixed frame (8) is U-shaped. A motor (9) is fixedly installed on the bottom side of the fixed frame (8). The output end of the motor (9) rotates through the fixed frame (8) and the fixed plate (7) and is fixedly sleeved with a transmission gear (10). The transmission gear (10) meshes with a gear ring (13).

4. A cleaning device for the inner cavity of an injection mold according to claim 1, characterized in that, The pumping assembly includes a water pump (16) fixedly installed on the bottom side of a fixed plate (7), an extraction pipe (17) fixedly installed on one side of the water pump (16), the other end of the extraction pipe (17) extending to the bottom of the filter plate (30), a delivery pipe (18) fixedly installed on the other side of the water pump (16), the other end of the delivery pipe (18) extending into the cleaning cylinder (14), and nozzles (19) fixedly connected on both sides of the delivery pipe (18), with the two nozzles (19) facing the through holes opened in the cleaning cylinder (14).

5. A cleaning device for the inner cavity of an injection mold according to claim 1, characterized in that, The anti-clogging component includes a round hole on one side of the housing (1), a rotating rod (26) is provided in the round hole, one end of the rotating rod (26) is rotatably connected to the inner wall of one side of the housing (1), the other end of the rotating rod (26) is fixedly connected to a second bevel gear (27), and a cam (28) is fixedly sleeved on the outside of the rotating rod (26), the cam (28) is located below the filter plate (30).

6. A cleaning device for the inner cavity of an injection mold according to claim 5, characterized in that, A connecting frame (21) is fixedly installed on one side of the housing (1). The connecting frame (21) is U-shaped and has round holes on both sides. The same transmission rod (22) is installed in the two round holes. The top and bottom ends of the transmission rod (22) are respectively fixedly connected to the second synchronous wheel (23) and the first bevel gear (25). The first bevel gear (25) meshes with the second bevel gear (27).

7. A cleaning device for the inner cavity of an injection mold according to claim 6, characterized in that, A square hole is provided on one side of the housing (1), and a first synchronous pulley (20) is fixedly sleeved on the outside of the output end of the motor (9). The first synchronous pulley (20) and the second synchronous pulley (23) share the same synchronous belt (24), and a part of the synchronous belt (24) is located in the square hole.

Images