One-step forming mold for vacuum cleaner floor brush

Abstract

The present invention relates to the field of mold technology, and discloses a one-time molding mold for a vacuum cleaner floor brush, comprising a mold base that is fixed and has a mold groove on the top, and a pressing plate that can move up and down and has a protrusion integrally formed on the bottom. When the pressing plate moves downward to drive its protrusion into a specific position in the mold groove, the mold is closed to form an injection mold cavity between the pressing plate and the mold groove. An upper cooling channel is opened in the pressing plate, and a lower cooling channel is opened in the mold base. In the closed mold state, the output port of the upper cooling channel is connected to the input port of the lower cooling channel, and the output port of the lower cooling channel is connected to the outside. The input port of the upper cooling channel is installed with a coolant input pipe. The present invention can not only cool the outside of the injection molded product, but also cool its inner side. The two-side cooling method is necessarily faster than the single-side cooling method, thereby saving the cooling time of the injection molded product and improving the cooling effect.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, and in particular to a one-step molding mold for a vacuum cleaner floor brush. Background Art

[0002] A vacuum cleaner is used to collect dust from the floor, and the floor brush is a key component of the vacuum cleaner. It is used to contact the floor, creating a negative pressure chamber within the brush. By placing the suction nozzle at the bottom or front of the brush and connecting it to the negative pressure chamber, dust collection is achieved. Floor brushes are typically made of plastic and are often molded in a single injection mold.

[0003] For example, the utility model patent with application number CN202221041026.7 and publication (announcement) number CN217434819U, entitled “A mold for processing a floor brush”, discloses “a workbench, a molding mechanism is installed at the upper end of the workbench, a cooling mechanism is also installed in the molding mechanism, a demoulding mechanism is also installed in the molding mechanism, and a material taking mechanism is also installed at the upper end of the workbench; the molding mechanism includes a mold base installed at the upper end of the workbench, a mold groove is opened at the upper end of the mold base, and a plurality of sets of molded telescopic rods are installed at the lower end of the mold frame, and a mold plate is fixed to the telescopic end of the molded telescopic rod. The mold plate is also equipped with a feed pipe, which passes through the mold plate and extends under the mold plate. A molded protrusion is integrally formed at the lower end of the mold plate. The cooling mechanism includes a cooling groove provided in the mold base. A plurality of cooling pipes are distributed and installed in the cooling groove. The mold plate is moved downward to insert the molded protrusion into the mold groove of the mold base to achieve mold closing and form an injection cavity. Injection molding can be achieved by pouring injection material into the injection cavity through the feed pipe. A cooling groove is provided in the mold base. Cooling liquid is introduced through the cooling groove to achieve rapid cooling to solidify the product. Finally, the product can be taken out through the material taking mechanism after demoulding.

[0004] Although the mold provided by the above patent can realize injection molding, cooling and demolding, its disadvantage is that when cooling the injection molded product in the mold, since the cooling groove is located in the mold base, and the mold base is located on the outside of the injection molded product, when the coolant is passed into the cooling groove, the injection molded product can only be cooled from the outside of the injection molded product, while the inside of the injection molded product cannot be cooled by the coolant evenly. The one-sided cooling method will inevitably lead to an increase in the cooling time of the injection molded product and low cooling efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a one-step forming die for a vacuum cleaner floor brush to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a one-step molding die for a vacuum cleaner floor brush, comprising a fixed mold base with a mold groove on the top and a pressing plate that can move up and down and has a protrusion integrally formed on the bottom. When the pressing plate moves downward and drives its protrusion to insert into a specific position in the mold groove, the mold is closed to form an injection mold cavity between the pressing plate and the mold groove.

[0007] An upper cooling channel is provided in the compression mold plate, and a lower cooling channel is provided in the mold base. In the mold closing state, the output port of the upper cooling channel is connected to the input port of the lower cooling channel, and the output port of the lower cooling channel is connected to the outside. A coolant input pipe is installed at the input port of the upper cooling channel. Coolant is input into the coolant input pipe so that the coolant passes through the upper cooling channel and the lower cooling channel in sequence and is then discharged.

[0008] The above-mentioned vacuum cleaner floor brush one-time forming mold, the upper cooling channel includes an upper input channel, a raised channel, and an upper output channel connected in sequence, the longitudinal sections of the upper input channel and the upper output channel are circular, the longitudinal section of the raised channel is rectangular, and the width of the raised channel in the front-to-back direction is greater than the diameter of the upper input channel and the upper output channel.

[0009] The above-mentioned vacuum cleaner floor brush one-time forming mold, the lower cooling channel includes a lower input channel, a paving channel, and a lower output channel that are connected in sequence, the longitudinal sections of the lower input channel, the paving channel, and the lower output channel are all rectangular, the lower input channel and the lower output channel are vertically arranged and are respectively located on the left and right sides of the mold groove, the paving channel is located below the mold groove, the top of the lower output channel is connected to the outside, and the upper output channel corresponds to the lower input channel.

[0010] The above-mentioned vacuum cleaner floor brush one-time forming mold has an ejector plate elastically slidingly arranged in the mold groove, and the ejector plate is linked with the pressing plate. The ejector plate is driven downward during the downward movement of the pressing plate. In the mold closing state, the bottom of the ejector plate is fitted with the bottom of the inner cavity of the mold groove, so that the injection molding cavity is surrounded by the pressing plate, the mold groove and the ejector plate.

[0011] In the above-mentioned vacuum cleaner floor brush one-step forming mold, in the initial state, the top of the ejector plate protrudes from the mold groove so that when the pressing plate moves up to the initial state, the ejector plate moves the formed vacuum cleaner floor brush out of the mold groove.

[0012] The above-mentioned vacuum cleaner floor brush one-time forming mold, the mold base is slidably plugged with a U-shaped plate, the U-shaped plate includes an integrally formed left plate, bottom plate and right side plate, the mold base is provided with two plug-in holes corresponding to the left and right sides of the U-shaped plate, the bottom plate of the U-shaped plate is fixedly connected to the ejection plate through a sliding rod, the sliding rod slides through the mold base, and a tension spring is fixedly connected between the mold base and the bottom plate of the U-shaped plate, and the tops of the left and right sides of the U-shaped plate extend to the top of the mold base and abut against the bottom of the pressing plate.

[0013] The above-mentioned vacuum cleaner floor brush one-time forming mold has a discharge channel connected to the lower cooling channel on the mold base, the outlet of the discharge channel passes through the mold base, the bottom height of the discharge channel is not higher than the bottom height of the lower cooling channel, and the left side plate of the U-shaped plate is provided with a connecting port corresponding to the discharge channel. When the connecting port coincides with the discharge channel, the discharge channel is connected so that the coolant accumulated in the lower cooling channel is discharged through the discharge channel.

[0014] The above-mentioned vacuum cleaner floor brush one-time forming mold also includes a collection tank located below the outlet of the discharge channel and below the output port of the lower cooling channel, so that the coolant flowing out of the outlet of the discharge channel and the coolant flowing out of the output port of the lower cooling channel flow into the collection tank.

[0015] In the above-mentioned vacuum cleaner floor brush one-step forming mold, a baffle is fixedly installed in the inner cavity of the collection tank to separate the inner cavity of the collection tank into a coolant collection cavity and an impurity collection cavity.

[0016] The above-mentioned vacuum cleaner floor brush one-time forming mold, the filter element covers the top opening of the coolant collection chamber so that the coolant enters the coolant collection chamber after being filtered by the filter element. In the process of the pressing mold squeezing the U-shaped plate downward, the filter element is driven to rotate elastically and collide with the inner wall of the collection tank so that the impurities filtered by the filter element are sent into the impurity collection chamber.

[0017] Beneficial effect: In the above technical solution, the present invention provides a one-time molding die for a vacuum cleaner floor brush. By opening an upper cooling channel in the die plate and a lower cooling channel on the mold base, and when the protrusion of the die plate is inserted into a specific position in the mold groove (i.e., in the mold closing state), the output port of the upper cooling channel is docked with the input port of the lower cooling channel, and the output port of the lower cooling channel is connected to the outside, so that after the vacuum cleaner floor brush is completed, when coolant is introduced into the coolant inlet pipe, the coolant will enter the upper cooling channel and the lower cooling channel in sequence, and finally be discharged through the output port of the lower cooling channel. Since the upper cooling channel is located above the injection mold cavity and the lower cooling channel is located below the injection mold cavity, the vacuum cleaner floor brush can be cooled by the coolant on both the outside and the inside after injection molding. Compared with the prior art, the present invention can not only cool the outside of the injection molded product, but also cool its inner side. The two-side cooling method is necessarily faster than the one-side cooling method, thereby saving the cooling time of the injection molded product and improving the cooling effect, which can effectively solve the shortcomings of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic cross-sectional view of a one-step forming mold for a vacuum cleaner floor brush in an initial state provided by an embodiment of the present invention;

[0020] Figure 2 A schematic cross-sectional view of a compression mold plate provided in an embodiment of the present invention;

[0021] Figure 3 A top view of an upper cooling channel provided in an embodiment of the present invention;

[0022] Figure 4 A schematic cross-sectional view of a mold base provided in an embodiment of the present invention;

[0023] Figure 5 A schematic cross-sectional view of a U-shaped plate provided in an embodiment of the present invention;

[0024] Figure 6 A schematic cross-sectional view of the ejector plate, the U-shaped plate, and the mold base in the initial state provided by an embodiment of the present invention;

[0025] Figure 7 A schematic cross-sectional view of a collection tank in an initial state provided by an embodiment of the present invention;

[0026] Figure 8A schematic cross-sectional view of a one-shot molding die for a vacuum cleaner floor brush in a mold-clamped state provided by an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 1. Bracket; 2. Press plate; 201. Upper cooling channel; 2011. Upper input channel; 2012. Raised channel; 2013. Upper output channel; 202. Connecting pipe; 203. Coolant input pipe; 3. Die base; 301. Lower cooling channel; 3011. Lower output channel; 3012. Flattening channel; 3013. Lower input channel; 302. Discharge channel; 303. Connecting hole; 304. Coolant discharge pipe; 305. Die groove; 4. Ejector plate; 5. U-shaped plate; 501. Connecting port; 502. Inner groove; 6. Slide rod; 7. Collecting tank; 701. Avoidance port; 702. Extension plate; 703. Baffle; 704. Coolant collection chamber; 705. Impurity collection chamber; 8. Filter screen; 801. Rotating shaft; 802. Impact plate; 9. Tension spring; 10. First compression spring; 11. Second compression spring; 12. Guide plate; 13. Guide rod; 14. Injection mold tube; 15. Injection mold cavity. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] like Figure 1-8 As shown, an embodiment of the present invention provides a one-step molding die for a vacuum cleaner floor brush, comprising a fixed die base 3 with a die groove 305 on the top, and a pressing die plate 2 that can move up and down and has a protrusion integrally formed on the bottom. When the pressing die plate 2 moves downward to drive the protrusion into a specific position in the die groove 305, the mold is closed to form an injection mold cavity 15 between the pressing die plate 2 and the die groove 305.

[0031] An upper cooling channel 201 is provided in the die plate 2, and a lower cooling channel 301 is provided in the die base 3. In the mold closing state, the output port of the upper cooling channel 201 is connected to the input port of the lower cooling channel 301, and the output port of the lower cooling channel 301 is connected to the outside. A coolant input pipe 203 is installed at the input port of the upper cooling channel 201. Coolant is input into the coolant input pipe 203 so that the coolant passes through the upper cooling channel 201 and the lower cooling channel 301 in sequence and is then discharged.

[0032] The one-time molding die for the vacuum cleaner floor brush provided in this embodiment is used for injection molding the vacuum cleaner floor brush. The words related to direction and position in this embodiment are relative to the accompanying drawings. Specifically, it includes a bracket 1, a mold base 3 fixedly mounted on the bracket 1, two sets of guide rods 13 fixedly mounted on the bracket 1, and the two sets of guide rods 13 are respectively located on the left and right sides of the top of the bracket 1. Two guide plates 12 are fixedly mounted on the pressing plate 2, which are slidably connected with the two sets of guide rods 13 in a one-to-one correspondence. The sliding connection between the guide rods 13 and the guide plates 12 enables the pressing plate 2 to move up and down in a directional manner. A connecting pipe 202 is fixedly mounted on the pressing plate 2, and the connecting pipe 202 is connected to the output end of the driving mechanism (not shown in the figure). The driving mechanism is used to drive the pressing plate 2 to move up and down. This is a prior art and will not be described in detail. A mold groove 305 is provided on the top of the mold base 3, and a protrusion corresponding to the mold groove 305 is integrally formed on the bottom of the pressing plate 2. During the downward movement of the pressing plate 2, the protrusion at its bottom is gradually inserted into the mold groove 305. When the protrusion at the bottom of the pressing plate 2 is inserted into a specific position in the mold groove 305, the mold is closed. At this time, an injection molding cavity 15 is formed between the pressing plate 2 and the mold groove 305. An injection molding tube 14 is fixedly installed on the pressing plate 2. In the closed mold state, the injection molding tube 14 is connected to the injection molding cavity 15. After injecting molten material into the injection molding tube 14, the molten material passes through the injection molding tube 14 into the injection molding cavity 15 to realize injection molding, which will not be repeated.After the injection molding is completed, the injection molded product needs to be cooled. Specifically, an upper cooling channel 201 for passing the coolant is opened in the compression mold plate 2, and a lower cooling channel 301 for passing the coolant is opened in the mold base 3. The upper cooling channel 201 is located above the injection molding cavity 15, and the lower cooling channel 301 is located below the injection molding cavity 15. The upper cooling channel 201 has an input port and an output port connected to the outside, and the lower cooling channel 301 also has an input port and an output port connected to the outside. The input port of the upper cooling channel 201 is sealed with a coolant input pipe 203, and the coolant input pipe 203 is connected to a coolant input mechanism (not shown in the figure). The coolant input mechanism includes a coolant storage tank and a pump body. The input end of the pump body is connected to the coolant storage tank, and the output end of the pump body is connected to the coolant input pipe 203. Start the pump. The body can pass the coolant in the coolant storage tank into the coolant inlet pipe 203. In the mold closing state, the output port of the upper cooling channel 201 is connected with the input port of the lower cooling channel 301 to achieve communication. At this time, the upper cooling channel 201 and the lower cooling channel 301 form a connected channel, so that the coolant passed into the coolant inlet pipe 203 will enter the upper cooling channel 201 and the lower cooling channel 301 in turn, and finally be discharged from the output port of the lower cooling channel 301 to the designated position. The coolant in the upper cooling channel 201 can cool the inner side of the injection molded product (i.e., the vacuum cleaner floor brush), and the coolant in the lower cooling channel 301 can cool the outer side of the injection molded product, so that both the inner and outer sides of the injection molded product can be cooled by the coolant, thereby effectively reducing the cooling time of the injection molded product. In the prior art, when cooling the injection molded product in the mold, since the cooling groove (equivalent to the cooling channel) is located in the mold base, and the mold base is located on the outside of the injection molded product, when coolant is passed into the cooling groove, the product can only be cooled from the outside of the product, while the inside of the product cannot be cooled by the coolant evenly. The one-sided cooling method will inevitably lead to an increase in the cooling time of the product and a low cooling efficiency.

[0033] In this embodiment, by providing an upper cooling channel 201 in the die plate 2 and a lower cooling channel 301 on the die base 3, and when the protrusion of the die plate 2 is inserted into a specific position in the mold groove 305 (i.e., in the mold closing state), the output port of the upper cooling channel 201 is docked with the input port of the lower cooling channel 301, and the output port of the lower cooling channel 301 is connected to the outside, so that after the vacuum cleaner floor brush is injection molded, when coolant is introduced into the coolant inlet pipe 203, the coolant will sequentially enter the upper cooling channel 201 and the lower cooling channel 301, and finally be discharged through the output port of the lower cooling channel 301. Since the upper cooling channel 201 is located above the injection molding cavity 15 and the lower cooling channel 301 is located below the injection molding cavity 15, the vacuum cleaner floor brush can be cooled by the coolant on both the outside and the inside after injection molding. Compared with the prior art, the present invention can not only cool the outside of the injection-molded product, but also cool the inside thereof. The two-side cooling method is necessarily faster than the single-side cooling method, thereby saving the cooling time of the injection-molded product and improving the cooling effect, which can effectively solve the shortcomings of the prior art.

[0034] Among them, the upper cooling channel 201 includes an upper input channel 2011, a raised channel 2012, and an upper output channel 2013 that are connected in sequence. The longitudinal sections of the upper input channel 2011 and the upper output channel 2013 are circular. The raised channel 2012 is located in the bulge of the die plate 2. The longitudinal section of the raised channel 2012 is rectangular. The height of the raised channel 2012 is lower than that of the upper input channel 2011 and the upper output channel 2013. The front-to-back direction of the raised channel 2012 (the front-to-back direction relative to the attached Figure 2 The width of the raised channel 2012 is greater than the diameter of the upper input channel 2011 and the upper output channel 2013 to increase the conduction area between the inner side of the injection molded product and the coolant in the raised channel 2012, thereby improving the cooling effect on the inner side of the injection molded product. Because the raised channel 2012 is lower than the upper input channel 2011 and the upper output channel 2013, when coolant is introduced, the coolant will not flow out through the upper output channel 2013 until it fills the raised channel 2012. As a result, the raised channel 2012 is always filled with coolant, and as coolant is continuously added, the coolant in the raised channel 2012 can be continuously refreshed to maintain a good cooling effect.

[0035] In this embodiment, the lower cooling channel 301 includes a lower input channel 3013, a flattening channel 3012, and a lower output channel 3011 that are connected in sequence. The longitudinal sections of the lower input channel 3013, the flattening channel 3012, and the lower output channel 3011 are all rectangular. The lower input channel 3013 and the lower output channel 3011 are vertically arranged and are respectively located on the left and right sides of the mold groove 305. The flattening channel 3012 is located below the mold groove 305, so as to increase the outer side of the injection molded product and the lower cooling channel. The conduction area of ​​the coolant in channel 301 is increased to improve the cooling effect on the outside of the injection molded product. The top of the lower output channel 3011 is connected to the outside, and the upper output channel 2013 corresponds to the lower input channel 3013. In the mold closed state, the bottom opening of the upper output channel 2013 is connected to the top opening of the lower input channel 3013, and the bottom surface of the die plate 2 is in sealed contact with the top surface of the mold base 3 to prevent the coolant from flowing out from between the upper output channel 2013 and the lower input channel 3013. After flowing into the upper output channel 2013, the coolant can enter the lower input channel 3013, the flattening channel 3012, and the lower input channel 3013 in sequence, and finally be discharged from the top of the lower output channel 3011 to a specific location for recovery.

[0036] In this embodiment, an ejector plate 4 is elastically slidably disposed within the mold cavity 305. The side surfaces of the ejector plate 4 slide in contact with the inner walls of the mold cavity 305, preventing molten material from flowing out between the ejector plate 4 and the mold cavity 305 upon entering the injection molding cavity 15. The ejector plate 4 is linked to the die plate 2, and as the die plate 2 moves downward, it drives the ejector plate 4 downward until the bottom surface of the die plate 2 abuts and contacts the top surface of the mold base 3, achieving mold closing. In the closed state, the bottom of the ejector plate 4 contacts the bottom of the mold cavity 305, creating a space between the top surface of the ejector plate 4 and the raised bottom surface of the die plate 2. This allows the injection molding cavity 15 to be enclosed by the die plate 2, the mold cavity 305, and the ejector plate 4. In the closed state, the top surface of the ejector plate 4 serves as the bottom surface of the mold cavity 305. The ejector plate 4 functions to remove the cooled injection molded product from the mold cavity 305 for unloading. When the molded product is cooled, the die plate 2 moves upward. During the upward movement of the die plate 2, the ejector plate 4 is driven upward by elastic force, thereby pushing the molded product out of the mold cavity 305 to achieve unloading.

[0037] Further, in the initial state (when the finger pressure template 2 is at the highest position, as shown in FIG. Figure 1 As shown in the figure, the top of the ejector plate 4 protrudes from the mold groove 305 so that when the pressing plate 2 moves up to the initial state, the ejector plate 4 moves the formed vacuum cleaner floor brush (i.e., the injection molded product) out of the mold groove 305. Since the top of the ejector plate 4 protrudes from the mold groove 305 in the initial state, the injection molded product can be completely removed from the mold groove 305.

[0038] Among them, a U-shaped plate 5 is slidably inserted on the mold base 3, and the U-shaped plate 5 includes an integrally formed left plate, a bottom plate and a right plate. The bottom plate is located between the left plate and the right plate. Two plug holes 303 corresponding to the left and right plates of the U-shaped plate 5 are opened on the mold base 3. The left and right plates of the U-shaped plate 5 slide through the two plug holes 303 in a one-to-one manner. The bottom plate of the U-shaped plate 5 is fixedly connected to the ejection plate 4 through a sliding rod 6. The top of the sliding rod 6 is fixedly connected to the top of the ejection plate 4. The bottom of the sliding rod 6 is fixedly connected to the top of the U-shaped plate 5. The sliding rod 6 slides through the mold base 3. The number of sliding rods 6 is at least two and they are evenly distributed to balance the force on the ejection plate 4. When the U-shaped plate 5 moves up and down, it can drive the ejection plate 4 Synchronous movement, a tension spring 9 is fixedly connected between the mold base 3 and the bottom plate of the U-shaped plate 5. There are multiple tension springs 9 and they are evenly divided into two groups. The two groups of tension springs 9 are symmetrically located on the left and right sides of the bottom plate of the U-shaped plate 5 to improve the force balance of the bottom plate of the U-shaped plate 5. Under the elastic force of the tension spring 9, the elastic sliding of the ejection plate 4 is achieved. A limit plate (not shown in the figure) is fixedly installed on the U-shaped plate 5 and abuts against the bottom of the mold base 3. In the initial state, under the elastic force of the tension spring 9, the limit plate abuts against the bottom of the mold base 3 so that the top height of the left plate and the top height of the right plate of the U-shaped plate 5 are limited to a specific height, and the tops of the left and right plates of the U-shaped plate 5 extend to the top of the mold base 3 and abut against the bottom of the pressing plate 2. Specifically, as the die plate 2 moves downward, the bottom of the die plate 2 gradually abuts against the tops of the left and right sides of the U-shaped plate 5 and squeezes downward, causing the U-shaped plate 5 to slide downward continuously. The downward movement of the U-shaped plate 5 further stretches the tension spring 9, while simultaneously driving the slide bar 6 and the ejector plate 4 downward. When the top surfaces of the left and right sides of the U-shaped plate 5 and the top surface of the mold base 3 are in the same plane, the top of the ejector plate 4 abuts against the bottom of the mold cavity 305, and the mold is closed. Similarly, after the injection molding is completed and cooling is achieved, the die plate 2 moves upward to reset. During the upward movement of the die plate 2, the elastic force of the tension spring 9 pulls the U-shaped plate 5 upward continuously, driving the slide bar 6 and the ejector plate 4 to move upward synchronously until they are reset. During the upward movement of the ejector plate 4, the molded product is removed from the mold cavity 305. It can be seen that the provision of the U-shaped plate 5 realizes the automatic formation of the injection mold cavity 15 and the automatic ejection of the molded product.

[0039] Furthermore, a discharge channel 302 is provided on the mold base 3 and is connected to the lower cooling channel 301. The outlet of the discharge channel 302 passes through the mold base 3. The bottom height of the discharge channel 302 is not higher than the bottom height of the lower cooling channel 301, so that the coolant in the lower cooling channel 301 can automatically flow into the discharge channel 302. The outlet of the discharge channel 302 is connected to the outside. A coolant discharge pipe 304 is fixedly installed on the mold base 3 and is sealed and connected to the outlet of the discharge channel 302. The left side of the U-shaped plate 5 The plate is provided with a connecting port 501 corresponding to the discharge channel 302. The left side and right side of the left side plate of the U-shaped plate 5 are respectively slidably fitted with the left side and right side of the plug-in hole 303, so that when the connecting port 501 is staggered with the discharge channel 302, the connecting port 501 can be blocked by the left side plate of the U-shaped plate 5 to prevent the discharge channel 302 from being conductive. When the connecting port 501 coincides with the discharge channel 302, the discharge channel 302 is conductive to allow the coolant accumulated in the lower cooling channel 301 to be discharged through the discharge channel 302. Specifically, in the mold closing state, the connecting port 501 is staggered with the discharge channel 302. At this time, the discharge channel 302 is not conductive, and the coolant flowing into the lower cooling channel 301 will not be discharged from the discharge channel 302, but will only be discharged through the top of the lower output channel 3011, so that the injection molded product can be cooled over a larger area; and after the injection molding and cooling are completed, during the upward movement of the pressing plate 2, the U-shaped plate 5 continues to slide upward under the action of the tension spring 9. When the U-shaped plate 5 is reset, the connecting port 501 coincides with the discharge channel 302 to make the discharge channel 302 conductive. At this time, the coolant accumulated in the lower cooling channel 301 is automatically discharged into the coolant discharge pipe 304 through the discharge channel 302, and is discharged to the designated position through the coolant discharge pipe 304. There is no need to perform a separate coolant discharge operation. It can be seen that the setting of the U-shaped plate 5 also has an unexpected technical effect.

[0040] In this embodiment, a collecting tank 7 is further included, which is located below the outlet of the discharge channel 302 and below the output port of the lower cooling channel 301. The coolant discharge pipe 304 is located above the collecting tank 7, so that the coolant flowing out of the outlet of the discharge channel 302 and the coolant flowing out of the output port of the lower cooling channel 301 flow into the collecting tank 7 for centralized collection.

[0041] Among them, a baffle 703 is fixedly installed in the inner cavity of the collection tank 7 to divide the inner cavity of the collection tank 7 into a coolant collection chamber 704 and an impurity collection chamber 705. The coolant collection chamber 704 and the impurity collection chamber 705 are not connected. The coolant flowing out from the outlet of the discharge channel 302 and the coolant flowing out from the output port of the lower cooling channel 301 flow into the coolant collection chamber 704. The impurity collection chamber 705 is used to collect impurities contained in the coolant.

[0042] Specifically, a filter element linked to the U-shaped plate 5 is provided in the inner cavity of the collection tank 7 via a rotating shaft 801. The filter element covers the top opening of the coolant collection chamber 704 so that the coolant passes through the filter element and enters the coolant collection chamber 704 after being filtered. The filtered impurities adhere to the filter element. In the process of the pressing plate 2 pressing the U-shaped plate 5 downward, the filter element is driven to rotate elastically and collide with the inner wall of the collection tank 7 so that the impurities filtered by the filter element are sent into the impurity collection chamber 705. Specifically, an extension plate 702 is fixedly installed on the left side of the top opening of the collection tank 7. The extension plate 702 is used to collide with the rotating filter element so that the filter element, under the action of the collision force, throws the filtered impurities into the impurity collection chamber 705. At the same time, the extension plate 702 is used to block the impurities thrown from the filter element and prevent the impurities from being thrown outside the collection tank 7. It can be seen that under the action of the downward movement of the U-shaped plate 5, the impurities filtered by the filter element can be automatically cleaned and collected.

[0043] Among them, the filter element includes a fixedly connected filter screen 8 and an impact plate 802, the impact plate 802 is fixedly installed on the right side of the filter screen 8, the rotating shaft 801 is fixedly installed on the left side of the filter screen 8, the rotation 801 is rotatably connected to the collection tank 7, and an avoidance port 701 is opened on the collection tank 7. The impact plate 802 passes through the avoidance port 701 and extends to the outside of the collection tank 7. The bottom of the U-shaped plate 5 is in abutment with the impact plate 802 located outside the collection tank 7. A first compression spring 10 is fixedly installed in the coolant collection chamber 704, and the top of the first compression spring 10 is in abutment with the bottom plate of the filter screen 8. During the downward movement of the U-shaped plate 5, the bottom of the U-shaped plate 5 presses the impact plate 802 downward to cause the filter screen 8 and the impact plate 802 to rotate downward around the rotating shaft 801. During the downward rotation of the filter screen 8, the first compression spring 10 is continuously compressed. When the impact plate 802 is staggered with the bottom of the U-shaped plate 5 (at this time, the bottom of the U-shaped plate 5 is located below the impact plate 802), the elastic force of the first compression spring 10 is released to eject the filter screen 8 and the impact plate 802 upward, causing the filter screen 8 and the impact plate 802 to rotate upward around the rotating shaft 801 until the impact plate 802 collides with the extension plate 702. Under the action of the collision force and the action of the impurities' own gravity, the impurities filtered out by the filter screen 8 enter the impurity collection chamber 705.

[0044] An inner groove 502 is provided on the left side of the left side plate of the U-shaped plate 5 so that the impact plate 802 will not contact the U-shaped plate 5 during the upward rotation around the rotating shaft 801, thereby not hindering the rotation of the filter screen 8 and the impact plate 802.

[0045] Furthermore, a second compression spring 11 is fixedly mounted on the extension plate 702, and the end of the second compression spring 11 abuts against the impact plate 802. During the process of the impact plate 802 rotating upward around the rotating shaft 801, the impact plate 802 collides with the end of the second compression spring 11 to compress the second compression spring 11. During the process of the impact plate 802 colliding with the end of the second compression spring 11, impurities on the filter screen 8 are thrown out, and thereafter, the elastic force of the second compression spring 11 is released to push the filter screen 8 and the impact plate 802 to rotate downward, so that the filter screen 8 and the impact plate 802 are reset.

[0046] When the U-shaped plate 5 is pulled upward by the tension spring 9, the inner groove 502 first pushes the impact plate 802 upward to make the filter 8 and the impact plate 802 rotate upward around the rotating shaft 801 until the impact plate 802 is offset from the U-shaped plate 5. At this time, the top of the U-shaped plate 5 is again located above the impact plate 802, and under the action of gravity, the filter 8 and the impact plate 802 can be reset, so that when the U-shaped plate 5 moves down again, the impurities on the filter 8 can be cleaned again.

[0047] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A one-step molding die for a vacuum cleaner floor brush, comprising a fixed mold base (3) with a mold groove (305) on the top and a pressing plate (2) that can move up and down and has a protrusion integrally formed on the bottom, wherein the pressing plate (2) is moved downward to drive the protrusion to be inserted into a specific position in the mold groove (305) to achieve mold closing so that an injection mold cavity (15) is formed between the pressing plate (2) and the mold groove (305), characterized in that: An upper cooling channel (201) is provided in the die plate (2), and a lower cooling channel (301) is provided in the die base (3). In a mold closing state, the output port of the upper cooling channel (201) is docked with the input port of the lower cooling channel (301), and the output port of the lower cooling channel (301) is connected to the outside. A coolant input pipe (203) is installed at the input port of the upper cooling channel (201), and coolant is input into the coolant input pipe (203) so that the coolant passes through the upper cooling channel (201) and the lower cooling channel (301) in sequence and is then discharged. An ejector plate (4) is elastically slidably provided in the mold groove (305), and the ejector plate (4) is linked to the die plate (2). When the die plate (2) moves downward, the ejector plate (4) is driven downward. In the mold closing state, the bottom of the ejector plate (4) fits with the bottom of the inner cavity of the mold groove (305), so that the injection molding cavity (15) is surrounded by the die plate (2), the mold groove (305) and the ejector plate (4); A U-shaped plate (5) is slidably plugged into the mold base (3), and the U-shaped plate (5) includes an integrally formed left side plate, a bottom plate and a right side plate. Two plug holes (303) corresponding to the left side plate and the right side plate of the U-shaped plate (5) are opened on the mold base (3). The bottom plate of the U-shaped plate (5) is fixedly connected to the ejection plate (4) through a sliding rod (6). The sliding rod (6) slides through the mold base (3). A tension spring (9) is fixedly connected between the mold base (3) and the bottom plate of the U-shaped plate (5). The tops of the left side plate and the right side plate of the U-shaped plate (5) extend above the mold base (3) and abut against the bottom of the pressing plate (2); The mold base (3) is provided with a discharge channel (302) connected to the lower cooling channel (301), the outlet of the discharge channel (302) passes through the mold base (3), the bottom height of the discharge channel (302) is not higher than the bottom height of the lower cooling channel (301), and the left side plate of the U-shaped plate (5) is provided with a communication port (501) corresponding to the discharge channel (302), and when the communication port (501) coincides with the discharge channel (302), the discharge channel (302) is connected so that the coolant accumulated in the lower cooling channel (301) is discharged through the discharge channel (302).

2. The one-step forming mold for a vacuum cleaner floor brush according to claim 1, characterized in that: The upper cooling channel (201) comprises an upper input channel (2011), a raised channel (2012), and an upper output channel (2013) which are connected in sequence; the longitudinal sections of the upper input channel (2011) and the upper output channel (2013) are circular, the longitudinal section of the raised channel (2012) is rectangular, and the width of the raised channel (2012) in the front-to-back direction is greater than the diameters of the upper input channel (2011) and the upper output channel (2013).

3. The one-step forming mold for a vacuum cleaner floor brush according to claim 2, characterized in that: The lower cooling channel (301) comprises a lower input channel (3013), a paving channel (3012), and a lower output channel (3011) which are connected in sequence. The longitudinal sections of the lower input channel (3013), the paving channel (3012), and the lower output channel (3011) are all rectangular. The lower input channel (3013) and the lower output channel (3011) are vertically arranged and respectively located on the left and right sides of the mold cavity (305). The paving channel (3012) is located below the mold cavity (305). The top of the lower output channel (3011) is connected to the outside. The upper output channel (2013) corresponds to the lower input channel (3013).

4. The one-step forming mold for a vacuum cleaner floor brush according to claim 1, characterized in that: In the initial state, the top of the ejector plate (4) protrudes from the die groove (305) so that when the pressing plate (2) moves upward to the initial state, the ejector plate (4) moves the formed vacuum cleaner floor brush out of the die groove (305).

5. The one-step forming mold for a vacuum cleaner floor brush according to claim 1, characterized in that: It also includes a collecting tank (7) located below the outlet of the discharge channel (302) and below the output port of the lower cooling channel (301), so that the coolant flowing out of the outlet of the discharge channel (302) and the coolant flowing out of the output port of the lower cooling channel (301) flow into the collecting tank (7).

6. The one-step forming mold for a vacuum cleaner floor brush according to claim 5, characterized in that: A baffle (703) is fixedly installed in the inner cavity of the collection tank (7) so that the inner cavity of the collection tank (7) is divided into a coolant collection cavity (704) and an impurity collection cavity (705).

7. The one-step forming mold for a vacuum cleaner floor brush according to claim 6, characterized in that: A filter element linked to the U-shaped plate (5) is rotatably provided in the inner cavity of the collection tank (7), and the filter element covers the top opening of the coolant collection cavity (704) so ​​that the coolant enters the coolant collection cavity (704) after being filtered by the filter element. In the process of the pressing plate (2) pressing the U-shaped plate (5) downward, the filter element is driven to rotate elastically and collide with the inner wall of the collection tank (7) so that impurities filtered by the filter element are sent to the impurity collection cavity (705).

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