A sponge foaming equipment

Abstract

The present application relates to a sponge foaming equipment, including a workbench, a receiving film, a feeding device and a driving member, and also includes a top block and a current limiting device, wherein the top block is arranged on the workbench and is located below the receiving film, the top block is located in front of the crossbeam along the conveying direction of the receiving film, the length direction of the top block is parallel to the length direction of the receiving film, the top block is directly opposite to the center position of the receiving film in the width direction and is used to lift up the receiving film, so that the part of the receiving film in the length direction directly opposite to the top block is a straightening part, the cross section of the straightening part gradually decreases from the center position to both ends, and the current limiting device is used to prevent the foaming raw material from flowing out of the receiving film from both sides in the width direction of the receiving film. The foaming raw material in the middle position of the straightening part will flow to both sides, thereby balancing the amount of the foaming raw material at various places in the width direction of the receiving film, making the top surface of the sponge after foaming and forming smoother, facilitating the rectangular cutting of the foamed sponge, and reducing the waste left after cutting.

Description

Technical Field

[0001] The present application relates to the field of sponge manufacturing equipment, and in particular to a sponge foaming equipment. Background Art

[0002] Sponge is a porous material with good water absorption and can be used for cleaning objects. Commonly used sponges are made of wood cellulose fibers or foamed plastic polymers. Sponge foaming equipment is usually used in the production of sponges.

[0003] Sponge foaming equipment of related technology such as Figure 1 As shown, it includes a workbench, a receiving film, a feeding device and a driving member. A conveying device is provided on the workbench, and the conveying device is used to drive the receiving film to move on the workbench. The moving direction of the receiving film is horizontally set and parallel to the length direction of the receiving film. A crossbeam is provided on the workbench, and the crossbeam is located directly above the receiving film and the length direction of the crossbeam is parallel to the width direction of the receiving film. The feeding device is slidably connected to the crossbeam along the length direction of the crossbeam. The feeding device is used to inject the foaming raw material onto the receiving film. The driving member is used to drive the feeding device to slide back and forth on the crossbeam.

[0004] The receiving film continuously passes through the feeding device, which spreads the foaming raw material on the receiving film. Then, as the receiving film continues to be conveyed, the foaming raw material comes into contact with the air and begins to foam.

[0005] The above-mentioned related technical solutions have the following defects: since the feeding device slides back and forth on the crossbeam to spread the foaming raw material on the receiving film, the amount of foaming raw material at the center position in the width direction of the receiving film will be greater than the amount of foaming raw material at the two end positions in the width direction of the receiving film. At this time, the height position of the foamed sponge will gradually decrease from the middle to both sides, and the foamed sponge will be cut into a rectangular shape. The sponge of the above-mentioned shape is not only difficult to cut, but also causes a lot of waste after cutting. Summary of the invention

[0006] In order to improve the problem of leaving a lot of waste after cutting the produced sponge, the present application provides a sponge foaming equipment.

[0007] The present application provides a sponge foaming device that adopts the following technical solution:

[0008] A sponge foaming device comprises a workbench, a receiving film, a feeding device and a driving member, wherein the workbench is provided with a conveying device, the conveying device is used to drive the receiving film to move on the workbench along the length direction of the receiving film, the workbench is provided with a crossbeam, the feeding device is slidably connected to the crossbeam along the length direction of the crossbeam, the feeding device is located above the receiving film, the feeding device is used to inject foaming raw materials onto the receiving film, the driving member is used to drive the feeding device to slide back and forth on the crossbeam, and the sliding direction of the feeding device is horizontally arranged and parallel In the width direction of the receiving film, it also includes a top block and a flow limiting device, the top block is arranged on the workbench and is located below the receiving film, the top block is located in front of the crossbeam along the conveying direction of the receiving film, the length direction of the top block is parallel to the length direction of the receiving film, the top block is opposite to the center position of the receiving film in the width direction and is used to lift the receiving film, so that the part of the receiving film facing the top block in the length direction is the straightening part, the cross-section of the straightening part gradually decreases from the center position to both ends, and the flow limiting device is used to prevent the foaming raw material from flowing out of the receiving film from both sides in the width direction of the receiving film.

[0009] By adopting the above technical solution, under the action of the top block, the cross-section of the straightening part gradually decreases from the center position to both ends. At this time, the foaming raw material in the middle position of the straightening part will flow to both sides, thereby balancing the amount of foaming raw materials at various locations in the width direction of the receiving film, making the top surface of the sponge after foaming smoother and closer to the rectangular setting, thereby facilitating the rectangular cutting of the foamed sponge and reducing the waste left after cutting.

[0010] Preferably, it further comprises a second driving member, the top block is slidably connected to the workbench along a side close to the receiving film and a side away from the receiving film, and the second driving member drives the top block to slide on the workbench.

[0011] By adopting the above technical solution, the top block can slide on the workbench, so as to control the inclination angle from the middle position to the two end positions of the straightening part, and can adjust it to a best inclination angle according to different amounts of foaming raw materials on the receiving film, so as to better balance the amount of foaming raw materials at various parts of the receiving film, so that the top surface of the sponge after molding can be flat.

[0012] Preferably, the flow limiting device includes two baffles arranged on the workbench, the two groups of baffles are arranged opposite to each other and are respectively located on both sides of the width direction of the receiving film, the distance between the two groups of baffles is smaller than the width of the receiving film, and the two ends of the receiving film in the width direction are folded upward and abut against the corresponding baffles.

[0013] By adopting the above technical solution, the two ends of the receiving film in the width direction thereof abut against the baffle and are folded upwards to prevent the foaming raw material injected on the receiving film by the feeding device from flowing out of the receiving film. When the foaming raw material is foamed to form a sponge, the baffle can also limit the molding shape of the sponge during the molding process.

[0014] Preferably, it also includes two lifting devices, which are respectively located on both sides of the receiving film in the width direction. The lifting device includes a driving member three, a lifting film and two first rollers. The first rollers are rotatably connected to the workbench, and the two ends of the lifting film are respectively wound on the two first rollers. The driving member three drives one of the first rollers to rotate. The lifting film located between the two first rollers is opposite to the straightening part and is used to abut against the sponge on the surface of the foaming raw material after foaming. The moving direction of the lifting film and the moving direction of the receiving film are located on the same plane and are set at an acute angle. The two lifting films are respectively used to clamp the sponge on the surface of the foaming raw material on the straightening part after foaming and lift it toward the side away from the receiving film.

[0015] By adopting the above technical solution, with the receiving film as a reference, the two lifting films will clamp this part of the foamed sponge and move it toward the side away from the receiving film, so that a gap will appear between the foamed sponge and the unfoamed foaming raw material at both ends of the straightening part in the width direction, so that the excess foaming raw material in the middle position in the width direction of the straightening part flows to the two ends to fill the gap, thereby better balancing the amount of foaming raw material at various positions on the receiving film, so that the top surface of the formed sponge can be smoother.

[0016] Preferably, the conveying device includes a driving member four, a steering roller, a winding roller, a conveyor belt and two transmission rollers, the steering roller, the winding roller and the two transmission rollers are all connected to the workbench and rotated in a direction parallel to the width of the receiving film, the two transmission rollers are located at the same horizontal height, the conveyor belt is wound around the two transmission rollers, the steering roller is located on the side of one of the transmission rollers away from the other transmission roller and is located above the transmission roller, the winding roller is located below the steering roller, one end of the receiving film is wound around the winding roller, and the other end of the receiving film passes through the steering roller and is placed on the conveyor belt and moves with the conveyor belt, the straightening part is located between the steering roller and the two transmission rollers, the feeding device is located on the side of the steering roller close to the transmission roller and is arranged close to the steering roller, and the driving member four is used to drive one of the transmission rollers to rotate.

[0017] By adopting the above technical solution, the receiving film between the steering roller and the two driving rollers is arranged at an angle, so that the foaming raw material injected by the feeding device on the receiving film can flow down along this inclined angle, limiting the flow direction of the foaming raw material and better controlling the shape of the sponge after molding.

[0018] Preferably, the driving member three includes a first bevel gear and a second bevel gear, the first bevel gear is coaxially fixedly connected to one of the first rotating rollers, the second bevel gear is coaxially fixedly connected to one of the transmission rollers, and the first bevel gear is meshingly connected to the second bevel gear.

[0019] By adopting the above technical solution, when the conveyor belt transmits the receiving film, the transmission roller on the conveyor belt will rotate, and the meshing connection between the first bevel gear and the second bevel gear will drive the corresponding first roller to rotate. During the rotation, the first roller will continuously wind the lifting film, so that the lifting film between the two first rollers moves with the movement of the conveyor belt.

[0020] Preferably, the driving member 1 includes a first motor, a synchronous belt, a clamping member, two synchronous wheels and two clamping blocks. The two synchronous wheels are connected to the beam by rotating in a direction perpendicular to the length of the beam. The synchronous belt is wound around the two synchronous wheels. The two clamping blocks are respectively located on the inner and outer sides of the area surrounded by the synchronous belt. The two clamping blocks are arranged opposite to each other. The clamping block located on the inner side of the synchronous belt is provided with a first tooth surface matching the tooth surface on the synchronous belt, and the clamping block located on the outer side of the synchronous belt is provided with a second tooth surface matching the first tooth surface. The clamping member drives the two clamping blocks to clamp the synchronous belt. When the two clamping blocks clamp the synchronous belt, the first tooth surface is meshed and connected to the tooth surface of the synchronous belt, and the first tooth surface and the second tooth surface are meshed with each other. The feeding device is detachably connected to the clamping block.

[0021] By adopting the above technical solution, the synchronous belt is clamped by two clamping blocks, and the first tooth surface is first meshed with the tooth surface of the synchronous belt to improve the connection strength between the corresponding clamping block and the synchronous belt, and then the connection strength between the two clamping blocks is enhanced by the mutual cooperation between the first tooth surface and the second tooth surface.

[0022] Preferably, the feeding device includes a pump body, a liquid inlet pipe, a liquid outlet pipe and a nozzle, the nozzle is detachably connected to the clamping block, the pump body is fixed on the workbench, the two ends of the liquid outlet pipe are respectively connected to the outlet of the pump body and the nozzle, one end of the liquid inlet pipe is connected to the inlet of the pump body, and the other end of the liquid inlet pipe is used to connect the foaming raw material.

[0023] By adopting the above technical solution, the pump body is started, the liquid inlet pipe absorbs the foaming raw material and then sends it out from the liquid outlet pipe, and the foaming raw material in the liquid outlet pipe flows onto the receiving membrane through the nozzle.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] By setting the top block, under the action of the top block, the cross section of the straightening part gradually decreases from the center to both ends. At this time, the foaming material in the middle of the straightening part will flow to both sides, thereby balancing the amount of foaming material at various locations in the width direction of the receiving film, making the top surface of the foamed sponge smoother and closer to the rectangular setting, thereby facilitating the rectangular cutting of the foamed sponge and reducing the waste left after cutting;

[0026] By setting up a lifting device and taking the receiving film as a reference, two lifting films will clamp this part of the foamed sponge and move it toward the side away from the receiving film, so that a gap will appear between the foamed sponge and the unfoamed foaming raw material at both ends of the straightening part in the width direction, so that the excess foaming raw material in the middle position in the width direction of the straightening part flows to both ends to fill the gap, so that the top surface of the sponge after molding can be smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the related technology.

[0028] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the structure of the lifting device of an embodiment of the present application.

[0030] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0031] Figure 5 It is a schematic diagram of the structure of the top block and the second driving member in the embodiment of the present application.

[0032] Description of the accompanying drawings: 1. workbench; 11. crossbeam; 12. driving member 1; 121. first motor; 122. synchronous belt; 123. clamping member; 1231. bolt; 124. synchronous wheel; 125. clamping block; 1251. first tooth surface; 1252. second tooth surface; 126. mounting block; 2. conveying device; 21. driving member 4; 211. second motor; 22. steering roller; 23. winding roller; 24. conveyor belt; 25. transmission roller; 3. feeding device; 31. Pump body; 32, liquid outlet pipe; 33, nozzle; 331, main pipe; 332, branch pipe; 34, fixing rod; 4, receiving membrane; 41, straightening part; 5, current limiting device; 51, baffle; 61, support frame; 62, top block; 621, inclined surface; 63, second driving member; 631, third motor; 632, lead screw; 7, lifting device; 71, third driving member; 711, first bevel gear; 712, second bevel gear; 72, lifting membrane; 73, first roller; 74, fourth motor. DETAILED DESCRIPTION

[0033] The following is combined with Figure 2-5 This application is described in further detail.

[0034] The embodiment of the present application discloses a sponge foaming device.

[0035] Reference Figure 2 , Figure 3A sponge foaming device of this embodiment includes a workbench 1, a receiving film 4, a feeding device 3 and a driving member 12. The length direction of the workbench 1 is horizontally arranged. A conveying device 2 is provided on the workbench 1. The conveying device 2 is used to drive the receiving film 4 to move.

[0036] Reference Figure 2 , Figure 3 The conveying device 2 includes a driving member 21, a steering roller 22, a winding roller 23, a conveyor belt 24 and two transmission rollers 25. The steering roller 22, the winding roller 23 and the two transmission rollers 25 are all connected to the workbench 1 in a rotational manner parallel to the width direction of the workbench 1. The two transmission rollers 25 are located at the same horizontal height and are released on the workbench 1 along the length direction of the workbench 1. The conveyor belt 24 is wound on the two transmission rollers 25, and the conveying direction of the conveyor belt 24 is parallel to the length direction of the workbench 1. The steering roller 22 is located on the side of one of the transmission rollers 25 away from the other transmission roller 25 and is located above the two transmission rollers 25. The winding roller 23 is located directly below the steering roller 22. The driving member 21 is a second motor 211, which is fixed on the workbench 1, and the output shaft of the second motor 211 is coaxially fixedly connected to one of the transmission rollers 25. One end of the receiving film 4 is wound on the winding roller 23, and the other end of the receiving film 4 is placed on the top surface of the conveyor belt 24 through the steering roller 22 and moves with the conveyor belt 24. The portion of the receiving film 4 between the steering roller 22 and the two driving rollers 25 is inclined, and the portion of the receiving film 4 between the two driving rollers 25 is horizontally arranged, and the width direction of the receiving film 4 is parallel to the width direction of the workbench 1.

[0037] Reference Figure 2 , Figure 3 A crossbeam 11 is fixed on the workbench 1. The length direction of the crossbeam 11 is parallel to the width direction of the workbench 1. The crossbeam 11 is located on the side of the steering roller 22 close to the two transmission rollers 25 and above the steering roller 22. The crossbeam 11 is arranged close to the steering roller 22. The feeding device 3 is slidably connected to the crossbeam 11 along the length direction of the crossbeam 11. The feeding device 3 is located above the receiving film 4. The feeding device 3 is used to feed the foaming raw material onto the receiving film 4. The driving member 12 is used to drive the feeding device 3 to slide back and forth on the crossbeam 11.

[0038] Reference Figure 2 , Figure 4The driving member 12 comprises a first motor 121, a synchronous belt 122, a clamping member 123, two synchronous wheels 124 and two clamping blocks 125. The two synchronous wheels 124 are connected to the crossbeam 11 in a rotational manner parallel to the length direction of the workbench 1. The two synchronous wheels 124 are respectively located at both ends of the length direction of the crossbeam 11, and the synchronous belt 122 is wound around the two synchronous wheels 124. The first motor 121 is fixed to the crossbeam 11, and the output shaft of the first motor 121 is coaxially fixedly connected to one of the synchronous wheels 124. The two clamping blocks 125 are respectively located at the inner side and the outer side of the area surrounded by the synchronous belt 122. The two clamping blocks 125 are arranged opposite to each other. The clamping block 125 located at the inner side of the synchronous belt 122 is provided with a first tooth surface 1251 matching the inner tooth surface of the synchronous belt 122, and the clamping block 125 located at the outer side of the synchronous belt 122 is provided with a second tooth surface 1252 matching the first tooth surface 1251. The clamping member 123 drives the two clamping blocks 125 to clamp the synchronous belt 122. The clamping member 123 is a plurality of bolts 1231. One end of the bolt 1231 passes through one of the clamping blocks 125 and is threadedly connected to the other clamping block 125. When the two clamping blocks 125 clamp the synchronous belt 122, the first tooth surface 1251 is meshed and connected to the tooth surface of the synchronous belt 122, and the first tooth surface 1251 and the second tooth surface 1252 are meshed with each other. At the same time, the clamping block 125 located outside the synchronous belt 122 abuts against the top surface of the beam 11 and is slidably connected to the beam 11 along the length direction of the beam 11.

[0039] Reference Figure 2 , Figure 4 The synchronous belt 122 is clamped by two clamping blocks 125. The first tooth surface 1251 is first meshed with the tooth surface of the synchronous belt 122 to improve the connection strength between the corresponding clamping block 125 and the synchronous belt 122. Then, the connection strength between the two clamping blocks 125 is enhanced by the mutual cooperation between the first tooth surface 1251 and the second tooth surface 1252. When the two clamping blocks 125 are damaged or the equipment is not used, they can be removed from the synchronous belt 122 for easy replacement or use on other driving devices of the synchronous belt 122. The forward and reverse rotation of the first motor 121 is controlled to control the back and forth movement of the feeding device 3 on the beam 11.

[0040] Reference Figure 2 , Figure 4A mounting block 126 is fixed on the clamping block 125 located outside the synchronous belt 122, and the feeding device 3 is detachably connected to the mounting block 126. The feeding device 3 includes a pump body 31, a liquid inlet pipe, a liquid outlet pipe 32 and a nozzle 33. The nozzle 33 includes a main pipe 331 and two branch pipes 332. The two branch pipes 332 are respectively located at the two ends of the main pipe 331 in the length direction and are connected to the main pipe 331. A fixing rod 34 is fixed in the middle position of the main pipe 331 in the length direction. The fixing rod 34 is detachably connected to the mounting block 126. The fixing rod 34 can be clamped on the mounting block 126 by a clamp, or by fixing a clamping block on the mounting block 126, and a clamping slot is provided on the fixing rod 34. The fixing rod 34 is fixed to the mounting block 126 by using the clamping block to clamp the clamping block on the clamping slot. When the fixing rod 34 is fixed, the ends of the two branch pipes 332 away from the main pipe 331 are vertically arranged downward and facing the receiving film 4. The pump body 31 is fixed on the workbench 1, and the two ends of the liquid outlet pipe 32 are respectively connected to the outlet of the pump body 31 and the main pipe 331, one end of the liquid inlet pipe is connected to the inlet of the pump body 31, and the other end of the liquid inlet pipe is used to connect the foaming raw material. When the pump body 31 is started, the liquid inlet pipe absorbs the foaming raw material and then sends it out from the liquid outlet pipe 32, and the foaming raw material in the liquid outlet pipe 32 flows to the receiving film 4 through the nozzle 33.

[0041] Reference Figure 2 , Figure 3 The workbench 1 is provided with a flow limiting device 5, which is used to prevent the foaming raw material from flowing out of the receiving film 4 from both sides in the width direction of the receiving film 4. The flow limiting device 5 includes two baffles 51 fixed on the workbench 1, and the two baffles 51 are arranged opposite to each other and are respectively located on both sides in the width direction of the receiving film 4. The distance between the two sets of baffles 51 is smaller than the width of the receiving film 4, and the two ends of the receiving film 4 in the width direction are folded upward and abutted on the corresponding baffles 51. The height of the baffle 51 is higher than the height of the sponge after foaming.

[0042] Reference Figure 2 , Figure 3 The baffle 51 is not only used for the two ends of the receiving film 4 in the width direction to abut and fold upward to prevent the foaming material injected by the feeding device 3 on the receiving film 4 from flowing out of the receiving film 4, but also when the foaming material is foamed to form a sponge, the baffle 51 can also limit the molding shape of the sponge during the molding process.

[0043] Reference Figure 2 , Figure 3After the feeding device 3 feeds the foaming raw material, the foaming raw material comes into contact with the air and starts to react, gradually foaming into a sponge. As the conveyor belt 24 continuously conveys the receiving film 4, the height of the sponge will gradually increase. In the early stage, since the foundation of the sponge is unstable, the baffle 51 is needed to shape the sponge. In the later stage, since most of the sponge has been formed and the foundation is relatively stable, the baffle 51 is no longer needed for shaping. Therefore, the baffle 51 is facing the inclined part of the receiving film 4 and the horizontal part close to the inclined part.

[0044] Reference Figure 2 , Figure 5 A support frame 61 is fixed on the workbench 1, and a top block 62 is slidably connected to the support frame 61 in the vertical direction. A second driving member 63 is provided on the support frame 61, and the second driving member 63 drives the top block 62 to slide on the support frame 61. The second driving member 63 includes a third motor 631 and a lead screw 632. The third motor 631 is fixed on the support frame 61, and the output shaft of the third motor 631 is vertically arranged upward and coaxially fixed on the lead screw 632, and one end of the lead screw 632 is threadedly connected to the top block 62. The output shaft of the third motor 631 rotates to drive the lead screw 632 to rotate, and the rotation of the lead screw 632 drives the top block 62 slidably connected to the workbench 1 to move.

[0045] Reference Figure 2 , Figure 5 , the top block 62 is located below the inclined part of the receiving film 4, the top block 62 is located in front of the feeding device 3 along the conveying direction of the receiving film 4, the length direction of the top block 62 is parallel to the length direction of the receiving film 4, the top block 62 is directly opposite to the center position of the width direction of the receiving film 4 and is used to lift up the receiving film 4. The plane where the top surface of the top block 62 is located is parallel to the plane where the inclined part of the receiving film 4 is located, and two inclined surfaces 621 are provided on the top surface of the top block 62, and the two inclined surfaces 621 are respectively located at both ends of the width direction of the top block 62, and the height position of the two inclined surfaces 621 gradually decreases from the end close to each other to the end away from each other. The part of the receiving film 4 facing the top block 62 in the length direction is called the straightening part 41, and the vertical section of the straightening part 41 gradually decreases from the center position to both ends.

[0046] Reference Figure 2 , Figure 5 Under the action of the top block 62, the cross-section of the straightening portion 41 gradually decreases from the center position to both ends. At this time, the foaming material in the middle position of the straightening portion 41 will flow to both sides, thereby balancing the amount of foaming material at various locations in the width direction of the receiving film 4, making the top surface of the foamed sponge smoother and closer to a rectangular setting, thereby facilitating the rectangular cutting of the foamed sponge and reducing the waste left after cutting.

[0047] Reference Figure 2 , Figure 3, two lifting devices 7 are provided on the workbench 1, and the two lifting devices 7 are respectively located on both sides of the width direction of the receiving film 4. The lifting device 7 includes a driving member 3 71, a lifting film 72 and two first rollers 73. The first roller 73 is connected to the workbench 1 in a vertical direction, and the two first rollers 73 are sequentially distributed on the workbench 1 along the length direction parallel to the workbench 1. The two first rollers 73 are located on the side of the baffle 51 away from the receiving film 4. One of the first rollers 73 is arranged opposite to the baffle 51, and the other first roller 73 is located on the side of the baffle 51 close to the crossbeam 11. The baffle 51 is provided with a vertical groove opposite to the first roller 73. One end of the lifting film 72 passes through the vertical groove and is wound on the first roller 73 opposite to the baffle 51, and the other end of the lifting film 72 is wound on the other first roller 73. The driving member 3 71 drives one of the first rollers 73 to rotate. The lifting film 72 located between the two first rotating rollers 73 faces the straightening part 41 and is used to abut against the foamed sponge on the surface of the foaming raw material. The moving direction of the lifting film 72 is set horizontally, and the moving direction of the lifting film 72 and the moving direction of the receiving film 4 are located on the same plane and are set at an acute angle. The two lifting films 72 are used to clamp the foamed sponge on the surface of the foaming raw material on the straightening part 41 and lift it toward the side away from the receiving film 4.

[0048] Reference Figure 2 , Figure 3 During the production process, the receiving film 4 and the lifting film 72 move at the same time, and the foaming material on the receiving film 4 begins to foam gradually. Since the surface of the foaming material contacts the air first, the height of the foamed sponge gradually rises and will be higher than the folded parts at both ends of the receiving film 4 in the width direction. Therefore, the two lifting films 72 can clamp the foamed sponge on the surface of the foaming material on the straightening part 41. At the same time, since the moving direction of the lifting film 72 is different from that of the receiving film 4, with the receiving film 4 as a reference, the two lifting films 72 will clamp this part of the foamed sponge and move toward the side away from the receiving film 4, so that there will be gaps between the foamed sponges at both ends of the straightening part 41 in the width direction and the unfoamed foaming raw materials, so that the excess foaming raw materials in the middle position of the straightening part 41 in the width direction flow to the two ends to fill the gap, so as to better balance the amount of foaming raw materials at various positions on the receiving film 4, so that the top surface of the sponge after molding can be smoother.

[0049] Reference Figure 2 , Figure 3 The driving member 3 71 includes a first bevel gear 711 and a second bevel gear 712. The first bevel gear 711 is coaxially fixedly connected to the first rotating roller 73 away from the beam 11, and the second bevel gear 712 is coaxially fixedly connected to the transmission roller 25 close to the beam 11. The first bevel gear 711 is located above the second bevel gear 712 and is meshedly connected to the second bevel gear 712.

[0050] Reference Figure 2 , Figure 3 The output shaft of the second motor 211 rotates to drive the transmission roller 25 to rotate, thereby driving the conveyor belt 24 to transmit the receiving film 4, and then the meshing connection between the first bevel gear 711 and the second bevel gear 712 will drive the corresponding first roller 73 to rotate. During the rotation process, the first roller 73 will continuously wind the lifting film 72, so that the lifting film 72 between the two first rollers 73 moves with the movement of the conveyor belt 24.

[0051] Reference Figure 2 , Figure 3 In order to facilitate the secondary use of the lifting film 72, a fourth motor 74 is fixed on the workbench 1. The output shaft of the fourth motor 74 is coaxially fixedly connected to the first roller 73 close to the beam 11. The fourth motor 74 is a common motor. During the foam production process, the first roller 73 away from the beam 11 will gradually wind up more and more lifting film 72, and the lifting film 72 on the first roller 73 close to the beam 11 will gradually decrease. When the production is completed and the sponge is transported out of the conveyor belt 24, the output shafts of the fourth motor 74 and the second motor 211 are driven to rotate, and the conveyor belt 24 is driven in reverse. The first roller 73 close to the beam 11 will rewind the lifting film 72 for the next production use.

[0052] The implementation principle of a sponge foaming device in an embodiment of the present application is as follows: during sponge production, under the action of the top block 62, the cross-section of the straightening portion 41 gradually decreases from the center position to both ends. At this time, the foaming raw material in the middle position of the straightening portion 41 will flow to both sides, thereby balancing the amount of foaming raw materials at various locations in the width direction of the receiving film 4, so that the top surface of the sponge after foaming is smoother. At the same time, during the production process, the receiving film 4 and the lifting film 72 move at the same time, and the two lifting films 72 will clamp this part of the foamed sponge and move toward the side away from the receiving film 4, so that a gap appears between the foamed sponge and the unfoamed foaming raw material at both ends of the straightening portion 41 in the width direction, so that the excess foaming raw material in the middle position of the straightening portion 41 in the width direction flows to the two ends to fill the gap, so as to better balance the amount of foaming raw materials at various positions on the receiving film 4, so that the top surface of the formed sponge can be smoother, which is convenient for rectangular cutting of the foamed sponge and reduces waste left after cutting.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sponge foaming device, comprising a workbench (1), a receiving film (4), a feeding device (3) and a driving member (12), wherein the workbench (1) is provided with a conveying device (2), and the conveying device (2) is used to drive the receiving film (4) to move on the workbench (1) along the length direction of the receiving film (4), and the workbench (1) is provided with a crossbeam (11), and the feeding device (3) is slidably connected to the crossbeam (11) along the length direction of the crossbeam (11), and the feeding device (3) is located above the receiving film (4), and the feeding device (3) is used to inject the foaming raw material onto the receiving film (4), and the driving member (12) is used to drive the feeding device (3) to slide back and forth on the crossbeam (11), and the sliding direction of the feeding device (3) is horizontally arranged and parallel to the width direction of the receiving film (4), characterized in that: It also includes a top block (62) and a flow limiting device (5), wherein the top block (62) is arranged on the workbench (1) and is located below the receiving film (4), the top block (62) is located in front of the crossbeam (11) along the conveying direction of the receiving film (4), the length direction of the top block (62) is parallel to the length direction of the receiving film (4), the top block (62) is directly opposite to the center position of the receiving film (4) in the width direction and is used to lift the receiving film (4), so that the part of the receiving film (4) directly opposite to the top block (62) in the length direction is the straightening part (41), the cross section of the straightening part (41) gradually decreases from the center position to both ends, and the flow limiting device (5) is used to prevent the foaming raw material from flowing out of the receiving film (4) from both sides of the receiving film (4) in the width direction.

2. A sponge foaming device according to claim 1, characterized in that: It also comprises a second driving member (63), the top block (62) is slidably connected to the workbench (1) along a side close to the receiving film (4) and a side away from the receiving film (4), and the second driving member (63) drives the top block (62) to slide on the workbench (1).

3. A sponge foaming device according to claim 1, characterized in that: The current limiting device (5) comprises two baffles (51) arranged on the workbench (1); the two groups of baffles (51) are arranged opposite to each other and are respectively located on both sides of the receiving film (4) in the width direction; the distance between the two groups of baffles (51) is smaller than the width of the receiving film (4); and the two ends of the receiving film (4) in the width direction are folded upwards and abut against the corresponding baffles (51).

4. A sponge foaming device according to claim 3, characterized in that: It also includes two lifting devices (7), which are respectively located on both sides of the receiving film (4) in the width direction. The lifting device (7) includes a driving member (71), a lifting film (72) and two first rollers (73). The first rollers (73) are rotatably connected to the workbench (1). The two ends of the lifting film (72) are respectively wound on the two first rollers (73). The driving member (71) drives one of the first rollers (73) to rotate. The lifting film (72) located between the two first rollers (73) faces the straightening part (41) and is used to abut against the sponge on the surface of the foaming raw material after foaming. The moving direction of the lifting film (72) is located on the same plane as the moving direction of the receiving film (4) and is set at an acute angle. The two lifting films (72) are respectively used to clamp the sponge on the surface of the foaming raw material on the straightening part (41) after foaming and lift it toward the side away from the receiving film (4).

5. A sponge foaming device according to claim 4, characterized in that: The conveying device (2) comprises a driving member (21), a steering roller (22), a winding roller (23), a conveyor belt (24) and two transmission rollers (25); the steering roller (22), the winding roller (23) and the two transmission rollers (25) are all connected to the workbench (1) in a rotational manner parallel to the width direction of the receiving film (4); the two transmission rollers (25) are located at the same horizontal height; the conveyor belt (24) is wound around the two transmission rollers (25); the steering roller (22) is located on a side of one of the transmission rollers (25) away from the other transmission roller (25) and is located on the transmission roller (25). The winding roller (23) is located above the steering roller (22), the winding roller (23) is located below the steering roller (22), one end of the receiving film (4) is wound around the winding roller (23), the other end of the receiving film (4) passes through the steering roller (22) and is then placed on the conveyor belt (24) and moves with the conveyor belt (24), the straightening section (41) is located between the steering roller (22) and the two transmission rollers (25), the feeding device (3) is located on the side of the steering roller (22) close to the transmission roller (25) and is arranged close to the steering roller (22), and the driving member (21) is used to drive one of the transmission rollers (25) to rotate.

6. A sponge foaming device according to claim 5, characterized in that: The driving member three (71) comprises a first bevel gear (711) and a second bevel gear (712), wherein the first bevel gear (711) is coaxially fixedly connected to one of the first rotating rollers (73), the second bevel gear (712) is coaxially fixedly connected to one of the transmission rollers (25), and the first bevel gear (711) is meshingly connected to the second bevel gear (712).

7. The sponge foaming device according to claim 1, characterized in that: The driving member (12) comprises a first motor (121), a synchronous belt (122), a clamping member (123), two synchronous wheels (124) and two clamping blocks (125); the two synchronous wheels (124) are rotatably connected to the crossbeam (11) in a direction perpendicular to the length of the crossbeam (11); the synchronous belt (122) is wound around the two synchronous wheels (124); the first motor (121) is arranged on the crossbeam (11) and the output shaft of the first motor (121) is coaxially fixedly connected to one of the synchronous wheels (124); the two clamping blocks (125) are respectively located on the inner side and the outer side of the area surrounded by the synchronous belt (122); the two clamping blocks (125) are arranged opposite to each other and are located at the same A first tooth surface (1251) matching the tooth surface on the synchronous belt (122) is provided on the clamping block (125) on the inner side of the step belt (122), and a second tooth surface (1252) matching the first tooth surface (1251) is provided on the clamping block (125) on the outer side of the synchronous belt (122). The clamping member (123) drives the two clamping blocks (125) to clamp the synchronous belt (122). When the two clamping blocks (125) clamp the synchronous belt (122), the first tooth surface (1251) is meshed and connected to the tooth surface of the synchronous belt (122). The first tooth surface (1251) and the second tooth surface (1252) are meshed with each other. The feeding device (3) is detachably connected to the clamping block (125).

8. A sponge foaming device according to claim 7, characterized in that: The feeding device (3) comprises a pump body (31), a liquid inlet pipe, a liquid outlet pipe (32) and a nozzle (33); the nozzle (33) is detachably connected to the clamping block (125); the pump body (31) is fixed on the workbench (1); the two ends of the liquid outlet pipe (32) are respectively connected to the outlet of the pump body (31) and the nozzle (33); one end of the liquid inlet pipe is connected to the inlet of the pump body (31); and the other end of the liquid inlet pipe is used to connect with the foaming raw material.

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