Sponge foaming conveyor

Abstract

The invention relates to the technical field of sponge manufacturing equipment, in particular to a sponge foaming conveyor which comprises a rack, a sponge conveying channel and a thin film supply device, the thin film supply device is composed of a thin film unwinding mechanism, a thin film winding mechanism and a conveying line, the thin film unwinding mechanism comprises an unwinding module and a thin film winding body, and the unwinding module is connected with the thin film winding body. The thin film winding mechanism comprises a winding module and a thin film winding body, the conveying line can convey the thin film winding body to circularly move between the unwinding module and the winding module, and a thin film wound and recycled on the winding module is conveyed to the unwinding module for unwinding use; and meanwhile, a dust collection structure and a pressing mechanism are arranged on the thin film winding body, in the winding process, the dust collection structure can conduct dust collection treatment on the thin film, and the thin film is prevented from being damaged in the winding process.

Description

Technical Field

[0001] The present invention relates to the technical field of sponge manufacturing equipment, and particularly relates to a sponge foaming conveyor. Background Art

[0002] Sponge, a porous material with good water absorption, is generally made of foamed plastic polymers. Currently, common sponges can be classified into three types according to their structures: high-density sponge, medium-density sponge, and low-density sponge. Sponges with different structures are used in different scenarios and fields. For example, high-density sponges are commonly used in household products such as sofas.

[0003] Nowadays, the production of sponges is mainly through the foaming process. During production, the foaming liquid is sprayed onto the conveying device, and after being conveyed by the conveying device, it gradually foams and forms, and finally is cut and transported. For example, a sponge foaming device disclosed in the authorized announcement number CN110509482B records the conveying process of sponge foaming on the conveying device, and current sponge manufacturing enterprises also use this kind of conveying device for sponge foaming production.

[0004] Still taking the above-mentioned prior art as an example, during the process of sponge foaming and conveying, in order to ensure the stable foaming and conveying of the foaming liquid, cardboard is set at the bottom of the conveying device, and a film is set on the side of the conveying device to ensure the stable progress of sponge foaming and transportation (the film can prevent the leakage of the foaming liquid, and at the same time, during foaming, it can avoid the mechanical structure of the conveying device affecting the shape of the sponge). Since the film is a reusable material, after the sponge foaming is completed and the film can be separated from the sponge, the film needs to be recycled. However, during the process of recycling the film (winding up the film), impurities are easily left (or adsorbed) on the surface of the film due to factors such as the production environment. Therefore, the film is easily damaged during winding and cannot be used.

[0005] Secondly, after recycling the film in the prior art, the film needs to be moved back to the film unwinding position for repeated use. During this process, in order to prevent the film from unwinding from the winding roller, manual intervention is required to assist in the transfer of the winding roller. However, since the transfer process of the winding roller is usually carried out suspended in the air, when the winding roller drops, it is easy to cause harm to workers.

[0006] In summary, it is necessary to make necessary improvements to the existing sponge foaming conveyor. Summary of the Invention

[0007] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a sponge foaming conveyor, aiming to solve the problems presented in the above background art.

[0008] The technical solution of the present invention is realized as follows:

[0009] At present, the sponge foaming conveyor of the prior art includes a frame, a sponge conveying channel, and a film conveying device. The sponge conveying channel is composed of side conveyor belts arranged on both sides of the frame at intervals and a number of conveying rollers arranged in parallel and rotatably connected to the frame; cardboard is laid on the conveying rollers; the film conveying device is used to convey the film to the side conveyor belts, and the foaming liquid of the sponge is sprayed onto the cardboard by the nozzle of the foaming pipe, and the foaming and conveying of the sponge are completed during the movement of the cardboard and the film.

[0010] The film conveying device of the sponge foaming conveyor of the present invention is replaced by the film supply device of the present invention. The film supply device of the present invention includes:

[0011] A film unwinding mechanism, at least including an unwinding module that can be controlled to rotate and unwind by a driver and a first film winding body that can axially slide relative to the unwinding module and is detachably connected to the unwinding module;

[0012] A film winding mechanism, at least including a winding module that can be controlled to rotate and wind by a driver and a second film winding body that can axially slide relative to the winding module and is detachably connected to the winding module;

[0013] A conveying line, arranged between the unwinding module and the winding module, and used to convey the first film winding body from the unwinding module to the position of the winding module and / or used to convey the second film winding body from the winding module to the position of the unwinding module;

[0014] Wherein, the winding module and / or the unwinding module are constructed and formed with a dust suction cavity connected to a dust suction pump through a dust suction pipe, and the first film winding body and the second film winding body are provided with a dust suction structure and a pressing structure;

[0015] The dust suction structure is communicated with the dust suction cavity and has a dust suction port, and the dust suction structure and the pressing structure can slide relative to each other. When the first film winding body unwinds or the second film winding body winds, the dust suction structure is controlled by the pressing structure to adjust the distance between the dust suction port and the film.

[0016] Preferably: both the first film winding body and the second film winding body include:

[0017] A winding cylinder, with both ends open;

[0018] An end cap, rotatably arranged at any end of the winding cylinder;

[0019] A pressing rod, slidably arranged on the end cap through a first sliding rod;

[0020] A dust suction pipe, slidably arranged on the end cap through a second sliding rod, having a dust suction port, and communicated with the dust suction cavity;

[0021] The pressing spring is connected between the end cover and the pressing rod;

[0022] Wherein, a transmission gear is rotatably connected to the end cover, and transmission racks meshing with the transmission gear are respectively installed on the first sliding rod and the second sliding rod.

[0023] Preferably: The conveyor line includes:

[0024] The first bracket;

[0025] The first sprocket and the second sprocket, which are arranged at intervals and rotatably connected to the first bracket, and the first sprocket and / or the second sprocket can be controlled to rotate by the first motor;

[0026] The chain, which is drivingly connected between the first sprocket and the second sprocket;

[0027] At least two conveying plates, which are installed on the chain;

[0028] At least two lifting hydraulic cylinders, which are respectively installed on each conveying plate;

[0029] Wherein, the output end of the lifting hydraulic cylinder is fixedly connected with a fixing block connected to the end cover.

[0030] Preferably: Both the winding module and the unwinding module include:

[0031] The second bracket;

[0032] The rotating table, which is arranged on the second bracket in a rotatable manner and can be controlled to rotate by the second motor;

[0033] The dust exhaust port, which is formed on the rotating table;

[0034] The dust extraction pipe, one end of which is connected to the dust exhaust port and the other end of which is connected with a dust suction pump;

[0035] When the winding drum is placed on the rotating table, a dust suction cavity communicating with the dust extraction pipe is formed between the winding drum and the rotating table.

[0036] Preferably: A filter screen is provided on the end cover coaxially;

[0037] It further includes a flow splitting structure installed at the position of the dust exhaust port, and the flow splitting structure includes:

[0038] The flow splitting cylinder, in which a flow splitting cavity communicating with the dust exhaust port is formed;

[0039] The supporting part, which is installed in the flow splitting cavity;

[0040] A plurality of air extraction ports, which are formed on the flow splitting cylinder and communicate with the flow splitting cavity;

[0041] A plurality of dust extraction ports are formed on the flow dividing cylinder, communicate with the flow dividing cavity, and are located at the position of the flow dividing cylinder close to the rotating table;

[0042] A closed structure is installed on the supporting part through a return spring and axially moves in the flow dividing cavity;

[0043] Among them, the closed structure has a pressing end that longitudinally penetrates the flow dividing cylinder. When the pressing end descends, the closed structure opens the air extraction port and closes the dust extraction port. When the pressing end ascends, the closed structure opens the dust extraction port and closes the air extraction port;

[0044] A stepped surface is formed on the top of the rotating table of the winding module. When the winding drum is placed on the rotating table of the winding module, the filter screen divides the dust suction cavity into a coaxial inner cavity and an outer cavity.

[0045] Preferably: The closed structure includes:

[0046] A movable shaft is coaxially arranged in the flow dividing cavity, and one end penetrates through the top of the flow dividing cylinder;

[0047] A limiting part is formed on the movable shaft, and the return spring is connected between the limiting part and the supporting part;

[0048] At least two closed bodies are fixedly connected to the movable shaft at intervals;

[0049] Among them, each closed body is respectively matched with the air extraction port and the dust extraction port, and an axially penetrating opening is provided on the closed body; a pressing plate is rotatably connected to the end cover.

[0050] Preferably: It further includes a cleaning structure installed on the end cover, and the cleaning structure includes:

[0051] At least one cleaning part is slidably arranged on the end cover and can move around the filter screen when moving;

[0052] A main gear is rotatably arranged on the end cover and can drive the cleaning part to move;

[0053] A first driving gear is rotatably arranged on the end cover and meshes with the main gear;

[0054] A second driving gear is rotatably arranged on the end cover and meshes with the transmission rack;

[0055] A one-way transmission structure is connected between the first driving gear and the second driving gear.

[0056] Preferably: The one-way transmission structure includes:

[0057] A first shaft is rotatably connected to the end cover and is connected to the first driving gear;

[0058] The second shaft is rotatably connected to the end cover and is connected to the second driving gear;

[0059] Wherein, a slotted groove is provided on the mating surface of the second shaft and the first shaft, and a limiting block is hinged in the slotted groove. A limiting spring is fixedly connected between the limiting block and the slotted groove. A limiting groove adapted to the limiting block is provided on the mating surface of the first shaft and the second shaft.

[0060] By adopting the above technical solutions, the present invention has at least the following beneficial effects:

[0061] 1. During the process of winding the film, the present invention can use the dust suction structure to suck the dust of the film, avoiding phenomena such as breakage of the film during the winding process, and achieving the purpose of protecting the film.

[0062] 2. During the process of winding the film, according to the degree of winding (as the winding progresses, the diameter of the film winding body will gradually increase), the distance between the dust suction structure and the outermost layer of the film is adjusted to ensure a good dust suction gap between the dust suction structure and the film.

[0063] 3. During the transfer process of the film winding body, the pressing mechanism can be used to clamp the film to prevent the film from scattering during the transfer process.

[0064] 4. After the film is sucked by the dust, the impurities are concentrated on the rotating table of the winding module. When the film winding body is transferred, the present invention can suck away the impurities on the rotating table, thus avoiding the accumulation of impurities on the rotating table; when the film is being wound, the impurities are sucked into the dust suction cavity and will not be directly sucked away by the dust suction pump, which can avoid the following phenomena:

[0065] Firstly, during the winding process, if a blockage occurs, the film winding body needs to be lifted, so that the winding work will stop, resulting in the suspension of production of the sponge.

[0066] Secondly, when the dust suction pump sucks away the impurities on the rotating table, the rotating table can be observed by the worker. Therefore, when a blockage occurs, auxiliary dredging can be carried out in time to avoid the aggravation of the blockage situation.

[0067] 5. The filter screen provided by the present invention can avoid the blockage of the air extraction port, so as to ensure the continuous dust suction during the winding process;

[0068] Secondly, when the film winding body moves to the unwinding position, during the unwinding process, the cleaning structure can be used to clean the filter screen to ensure the smoothness of the filter screen.

[0069] In addition, other advantages of the present invention will be shown in the embodiment part of the present invention, making the beneficial effects of the present invention more prominent and significant. Brief Description of the Drawings

[0070] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0071] Figure 1 Structural schematic diagram of Specific Embodiment 1 of the present invention;

[0072] Figure 2 Structural schematic diagram of the film supply device in Specific Embodiment 1 of the present invention;

[0073] Figure 3 Structural schematic diagram of the film winding mechanism or film unwinding mechanism in Specific Embodiment 1 of the present invention;

[0074] Figure 4 For Figure 3 A-A cross-sectional view in

[0075] Figure 5 For Figure 3 B-B cross-sectional view in

[0076] Figure 6 Internal structural schematic diagram of the clamping groove on the outer wall of the winding drum in Specific Embodiment 1 of the present invention;

[0077] Figure 7 Structural schematic diagram of the film winding mechanism in Specific Embodiment 2 of the present invention;

[0078] Figure 8 For Figure 7 Enlarged view of part A in

[0079] Figure 9 Structural schematic diagram of the film unwinding mechanism in Specific Embodiment 3 of the present invention;

[0080] Figure 10 For Figure 9 C-C cross-sectional view in

[0081] Figure 11 For Figure 9 D-D cross-sectional view in

[0082] Figure 12 For Figure 9 Enlarged view of part B in

[0083] Figure 13 Principle schematic diagram of the one-way transmission structure in Specific Embodiment 3 of the present invention. Specific embodiments

[0084] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0085] Embodiment 1

[0086] As Figure 1 shown, this embodiment discloses a sponge foaming conveyor, including a frame, a sponge conveying channel, and a film supply device 3.

[0087] To better clarify the technical key points of this embodiment, the prior art part will be briefly described first, as follows:

[0088] Prior art one: Refer to Figure 1 , the frame includes a plurality of support columns 10 and a first frame body 11 fixedly connected to the support columns 10.

[0089] Prior art two: Refer to Figure 1 , the sponge conveying channel is composed of a cardboard conveying part and a film conveying part. The cardboard conveying part includes several conveying rollers 20 rotatably connected to the first frame body 11. The adjacent conveying rollers 20 are driven by a first chain drive assembly 21, and the first chain drive assembly 21 is controlled by a cardboard conveying motor 22. Preferably, the diameter of the conveying roller 20 is larger than the diameter of the sprocket of the first chain drive assembly 21, and cardboard 23 is laid on the conveying roller;

[0090] The film conveying part includes two groups of second chain drive assemblies (respectively: group A 241 and group B 242). The group A second chain drive assembly and the group B second chain drive assembly are respectively installed on the first frame body and controlled by a film conveying motor 243. And a conveying plate 244 that can be conveyed by the second chain drive assembly is arranged between the two groups of second chain drive assemblies. Preferably, the film conveying part of this embodiment is arranged on both sides of the cardboard conveying part, and a film can be laid on the conveying plate. When the film conveying part and the cardboard conveying part are started simultaneously, the cardboard and the film move along the conveying direction.

[0091] Prior art three: The foaming liquid can be sprayed onto the cardboard 23, and the cardboard is conveyed and moved by the cardboard conveying part, and the foaming of the sponge is completed during the movement.

[0092] The difference between this embodiment and the prior art is that the film supply device of this embodiment can not only provide feeding and recycling of the film to the conveying plate in the film conveying part, but also stably transfer the film (transfer from the winding position to the unwinding position. Taking the cardboard conveying direction as the reference, the unwinding position is closer to the initial position of the cardboard, and the winding position is farther from the initial position of the cardboard relative to the unwinding position). More specifically:

[0093] Reference Figures 2 - 6 , the film supply device 3 of this embodiment includes:

[0094] A film unwinding mechanism 31, at least including an unwinding module that can be controlled by a driver to rotate and unwind the film, and a first film winding body that can axially slide relative to the unwinding module and is detachably connected to the unwinding module;

[0095] A film winding mechanism 32, at least including a winding module that can be controlled by a driver to rotate and wind the film, and a second film winding body that can axially slide relative to the winding module and is detachably connected to the winding module;

[0096] A conveying line 33, arranged between the unwinding module and the winding module, and used to convey the first film winding body from the unwinding module to the position of the winding module and / or used to convey the second film winding body from the winding module to the position of the unwinding module;

[0097] Among them, the winding module and / or the unwinding module constructs and forms a dust suction cavity connected to a dust suction pump (not shown in the figure) through a dust suction pipe 34, and the first film winding body and the second film winding body are provided with a dust suction structure and a pressing structure;

[0098] The dust suction structure is communicated with the dust suction cavity and has a dust suction port, and the dust suction structure and the pressing structure can slide relative to each other. When the first film winding body unwinds or the second film winding body winds, the dust suction structure is controlled by the pressing structure to adjust the distance between the dust suction port and the film.

[0099] In this embodiment: both the first film winding body and the second film winding body include:

[0100] A winding drum 40, with both ends open;

[0101] An end cover 41, rotatably arranged at any end of the winding drum 40. In this embodiment, an annular slide rail 410 is provided on the end cover 41, and one end of the winding drum 40 has an annular chute adapted to the annular slide rail 410. Through the cooperation of the annular chute and the annular slide rail 410, the winding drum 40 and the end cover 41 can rotate axially relative to each other;

[0102] A pressing rod 42, slidably arranged on the end cover 41 through a first slide rod 421;

[0103] The dust suction pipe 43 is slidably arranged on the end cover 41 through the second slide bar 432, has a dust suction port 433, and is communicated with the dust suction cavity;

[0104] The compression spring 44 is connected between the end cover 41 and the compression rod 42;

[0105] Wherein, a transmission gear 45 is rotatably connected to the end cover 41, and transmission racks 46 meshing with the transmission gear 45 are respectively installed on the first slide bar 421 and the second slide bar 432.

[0106] In this embodiment, a chamber 41a communicating with the inside of the winding drum 40 is formed in the end cover 41, and the dust suction pipe 43 is communicated with the chamber 41a through a corrugated expansion pipe 41b.

[0107] In this embodiment, a compression roller 42a is rotatably connected to the compression rod 42. The compression roller 42a does not affect the winding and unwinding of the film, and at the same time can also prevent the film from loosening.

[0108] In this embodiment: The conveyor line 33 includes:

[0109] The first bracket 330 is connected to the frame 11 and has a support frame 330a which is separated from the frame 11;

[0110] The first sprocket 331 and the second sprocket 332 are arranged at intervals and rotatably connected to the first bracket 330. Among them, the first sprocket 331 is supported by the first bracket 330, and the second sprocket 332 is arranged on the support frame 330a. The first sprocket 331 can be controlled to rotate by the first motor 333;

[0111] The chain 334 is drivingly connected between the first sprocket 331 and the second sprocket 332;

[0112] At least two conveyor plates 335 are installed on the chain 334;

[0113] At least two lifting hydraulic cylinders 336 are respectively installed on each conveyor plate 335;

[0114] Wherein, the output end of the lifting hydraulic cylinder 336 is fixedly connected with a fixing block 337 connected to the end cover 41, and a lifting bracket 48 is arranged on the end cover 41, and the lifting bracket 48 is fixedly connected with the fixing block 337.

[0115] In this embodiment: Both the winding module and the unwinding module include:

[0116] The second bracket 50;

[0117] The rotating table 51 is rotatably arranged on the second bracket 50 and can be controlled to rotate by the second motor 52;

[0118] The dust exhaust port 53 is formed on the rotary table 51. In this embodiment, the rotary table 51 is rotatably connected to the second bracket 50 through a support shaft 51a. An axial cavity 51b is formed on the support shaft 51a. One end of the axial cavity 51b forms the dust exhaust port 53. A first pulley 51b is installed on the support shaft 51a. The output end of the second motor 52 is fixedly connected with a second pulley 51c. A belt is drivingly connected between the first pulley 51b and the second pulley 51c.

[0119] The dust extraction pipe 34 has one end connected to the dust exhaust port (connected to the axial cavity 51b), and the other end is connected with a dust suction pump.

[0120] When the winding drum 40 is placed on the rotary table 51, a dust suction cavity 55 communicating with the dust extraction pipe 34 is formed between the winding drum 40 and the rotary table 51.

[0121] In this embodiment, a clamping groove 40a is provided on the outer wall of the winding drum 40. A clamping plate 40b is provided in the clamping groove 40a. A clamping spring 40c is fixedly connected between the clamping plate 40b and the clamping groove 40a.

[0122] In this embodiment, a fastening bolt 510 is threadedly connected to the rotary table 51. After the fastening bolt 510 is screwed in, it can abut against the outer side wall of the winding drum, so as to ensure that the rotary table can drive the winding drum to rotate.

[0123] Reference Figures 2 - 6 The principle of this embodiment is as follows:

[0124] 1. The film is unwound at the film unwinding mechanism (unwinding position), and is wound at the film winding mechanism (winding position) after being conveyed by the film conveying part. The structures of the film winding mechanism and the film unwinding mechanism in this embodiment are the same. Taking winding as an example: during winding, one end of the film passes through the gap between the winding drum and the pressing roller and is pulled into the clamping groove, and the one end of the film is fixed by the clamping plate; the second motor controls the rotation of the rotary table through the pulley structure. When the rotary table rotates, the winding drum also rotates at any time (the top of the end cover is connected to the lifting hydraulic cylinder and thus does not rotate). When the winding drum rotates, the film is wound.

[0125] 2. During the winding process, the film is continuously wound by the winding drum, and the winding thickness of the film continuously increases. Therefore, the distance between the pressing roller and the winding drum expands, thereby driving the first sliding rod to move. The driving rack on the first sliding rod drives the driving gear to rotate and controls the movement of the second sliding rod, so that the dust suction pipe also moves away from the winding drum, so that the dust suction port on the dust suction pipe continuously maintains a relatively appropriate distance from the film, thereby ensuring the dust suction effect on the film.

[0126] During the winding process (although the rotating disk rotates during winding, in order to cooperate with the sponge foaming, the rotation speed of the rotating disk is relatively slow. Therefore, the centrifugal force generated by the rotation of the rotating disk will not disperse the impurities on the rotating disk to the surroundings, so it will not affect the dust suction), the impurities on the film are sucked into the dust suction cavity through the dust suction port and finally evacuated through the shaft cavity by the dust extraction pipe.

[0127] 3. After the winding is completed, the lifting hydraulic cylinder is lifted to raise the end cover, so that the winding drum is separated from the rotating table. Subsequently, it is moved to the unwinding position through the conveyor line, and the winding drum initially located at the unwinding position is synchronously moved to the winding position, so as to move the winding drum with the wound film to the unwinding position;

[0128] In this embodiment, when moving the winding drum, the film is pressed by the pressing roller through the compression spring, so that it can be prevented from loosening during the transfer process. Therefore, manual assistance is omitted in this process.

[0129] It is worth mentioning that: the compression spring in this embodiment can also be replaced by a linear actuator such as an electric push rod or a cylinder. In this way, the active control of the pressing rod can be realized. Taking the electric push rod as an example, when using the electric push rod to replace, the electric push rod is installed on the end cover, and the output end (piston end) of the electric push rod is connected to the pressing rod.

[0130] Embodiment 2, the difference from Embodiment 1 is that:

[0131] As Figures 7 - 8 shown, in this embodiment: a filter screen 60 is provided on the end cover 41 coaxially;

[0132] It also includes a diversion structure installed at the position of the dust exhaust port 53. The diversion structure includes:

[0133] A diversion cylinder 61, with a diversion cavity 62 formed inside and communicating with the dust exhaust port 53;

[0134] A support portion 63, installed inside the diversion cavity 62;

[0135] A plurality of air extraction ports 641 are formed on the diversion cylinder 61 and communicate with the diversion cavity 62;

[0136] A plurality of dust extraction ports 642 are formed on the diversion cylinder 61 and communicate with the diversion cavity 62, and are located at the position where the diversion cylinder 61 is close to the rotating table 51 (or the dust exhaust port 53);

[0137] A closing structure, installed on the support portion 63 through a return spring 65 and axially movable inside the diversion cavity 62;

[0138] Among them, the closed structure has a pressing end that longitudinally penetrates the shunt cylinder 61. When the pressing end descends, the closed structure opens the air extraction port 641 and closes the dust extraction port 642. When the pressing end ascends, the closed structure opens the dust extraction port 642 and closes the air extraction port 641;

[0139] A stepped surface 66 is formed at the top of the rotating table of the winding module. When the winding cylinder 40 is placed on the rotating table 51 of the winding module, the filter screen 60 divides the dust suction cavity 55 into a coaxial inner cavity 67 and an outer cavity 68.

[0140] In this embodiment: The closed structure includes:

[0141] A movable shaft 70 is coaxially arranged in the shunt cavity 62, and one end penetrates through the top of the shunt cylinder 61;

[0142] A limiting portion 71 is formed on the movable shaft 70, and the return spring 72 is connected between the limiting portion 71 and the supporting portion 63;

[0143] At least two closing bodies 73 are fixedly connected to the movable shaft 70 at intervals;

[0144] Among them, each closing body 73 is respectively matched with the air extraction port 641 and the dust extraction port 642, and an axially penetrating opening 730 is provided on the closing body 73; A pressing plate 74 is rotatably connected to the end cover 41.

[0145] Reference Figures 7 - 8 , the principle of this embodiment is:

[0146] The shunt structure of this embodiment is provided with an air extraction port and a dust extraction port, which can avoid the risk of the sponge production stopping due to the blockage of the dust discharge port. More specifically:

[0147] Taking Embodiment 1 as an example, as Figure 4 shown, when it is extracting dust, the impurities in the dust suction cavity move towards the dust discharge port. If the dust discharge port is blocked, the dust suction effect will be greatly reduced. Therefore, a shunt structure is provided at the dust discharge port in this embodiment. When the winding cylinder is located on the rotating disk, the pressing plate on the end cover controls the movable shaft to descend, and the closing body closes the dust extraction port and opens the air extraction port. During winding, the impurities enter from the dust suction port, and after entering the dust suction cavity, they are blocked by the filter screen in the outer cavity, and the air flow passes through the filter screen and is discharged through the shunt cavity;

[0148] After the winding is completed and the winding cylinder is transferred, the filter screen leaves with the winding cylinder, and the movable shaft is also driven to rise by the return spring. The closing body closes the air extraction port and opens the dust extraction port, and the dust extraction port located at a lower position can extract the impurities on the rotating disk.

[0149] In the above process, since the air extraction port is set at a high position, the frequency of contact with impurities is not high, so it is not easily blocked. During the winding process, the air extraction port is opened as a path for air flow, and the air extraction port is always unobstructed, enabling continuous dust suction of the film during winding. When the dust extraction port is opened, the air extraction port is closed. At this time, the winding cylinder has left the rotating table. When the dust extraction port becomes blocked, the worker can handle it in time to avoid more serious blockage.

[0150] In summary, in this application, a diversion structure is provided, using the air extraction port and the dust extraction port to replace the dust discharge port. The air extraction port is used during winding to ensure continuous and stable dust suction during the winding process. The dust extraction port is used when transferring the winding cylinder. If the dust extraction port becomes blocked at this time, it can be dredged in time.

[0151] Embodiment 3, the difference from Embodiment 2 is as follows:

[0152] As Figures 9 - 13 shown, this embodiment further includes a cleaning structure installed on the end cover. The cleaning structure includes:

[0153] At least one cleaning part 80, slidably arranged on the end cover 41 and capable of moving around the filter screen 60 during movement;

[0154] The main gear 81 is rotatably arranged on the end cover 41 and can drive the cleaning part to move. An annular slide rail 410 for supporting the rotation of the main gear 81 is provided on the end cover 41. The cleaning part 80 is fixed to the main gear 81. The cleaning part of this embodiment is preferably a cleaning brush;

[0155] The first driving gear 82 is rotatably arranged on the end cover 41 and meshes with the main gear 81;

[0156] The second driving gear 83 is rotatably arranged on the end cover 41 and meshes with the transmission rack 46;

[0157] The one-way transmission structure 9 is connected between the first driving gear 82 and the second driving gear 83.

[0158] In this embodiment: The one-way transmission structure 9 includes:

[0159] The first shaft 91 is rotatably connected to the end cover 41 and is connected to the first driving gear 82;

[0160] The second shaft 92 is rotatably connected to the end cover 41 and is connected to the second driving gear 83;

[0161] Wherein, a chute 93 is provided on the mating surface of the second shaft 92 and the first shaft 91, a limiting block 94 is hinged in the chute 93, a limiting spring 95 is fixedly connected between the limiting block 94 and the chute 93, and a limiting groove 96 adapted to the limiting block 94 is provided on the mating surface of the first shaft 91 and the second shaft 92.

[0162] Reference Figures 9 - 13 , the advantages of this embodiment are:

[0163] In this embodiment, when the take-up reel moves to the unwinding position, the cleaning part can be used to clean the filter screen, so as to ensure the use of the filter screen when the take-up reel is in the take-up position. More specifically:

[0164] When in the take-up position, due to the winding of the film, the pressing rod continuously moves away from the take-up reel and stretches the pressing spring. During this process, the transmission rack moves, the second driving gear rotates counterclockwise, the second shaft rotates counterclockwise, and does not drive the first driving gear to rotate; when in the unwinding position, since the film is continuously unwound, the pressing rod is reset by the pressing spring and drives the second driving gear to rotate clockwise through the transmission rack. The second driving gear drives the first driving gear to rotate through the one-way transmission structure, and finally drives the main gear to rotate, and the main gear is used to control the cleaning part to move around the filter screen, so as to clean the filter screen. During the cleaning process, impurities are sucked out through the dust exhaust port to complete the cleaning.

[0165] In this embodiment, the one-way transmission structure can make the main gear always rotate in one direction when being driven to rotate, so that the cleaning part can move around the filter screen unidirectionally, so as to clean the filter screen comprehensively.

[0166] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sponge foaming conveyor, comprising: frame; The sponge conveying channel is composed of side conveying belts arranged at intervals on both sides of the frame and a plurality of conveying rollers arranged in parallel and rotatably connected to the frame; cardboard is laid on the conveying rollers; and the sponge conveying channel is characterized in that it also includes a film supply device (3), and the film supply device (3) includes: The film unwinding mechanism (31) comprises at least an unwinding module which can be controlled by a driver to rotate and unwind, and a first film winding body which can slide axially relative to the unwinding module and is detachably connected to the unwinding module; The film winding mechanism (32) comprises at least a winding module which can be controlled by a driver to rotate and wind up, and a second film winding body which can slide axially relative to the winding module and is detachably connected to the winding module; A conveying line (33) is provided between the unwinding module and the winding module and is used to convey the first film winding body from the unwinding module to the winding module position and / or to convey the second film winding body from the winding module to the unwinding module position; The winding module and / or unwinding module constructs and forms a dust suction chamber connected to a dust suction pump via a dust suction pipe (34), and the first film winding body and the second film winding body are provided with a dust suction structure and a pressing structure; The dust suction structure is connected to the dust suction cavity and has a dust suction port, and the dust suction structure and the pressing structure can slide relative to each other. When the first film winding body is unwinding or the second film winding body is winding, the dust suction structure is controlled by the pressing structure and adjusts the distance between the dust suction port and the film.

2. A sponge foaming conveyor according to claim 1, characterized in that: The first film winding body and the second film winding body both include: A winding drum (40) with both ends opened; An end cover (41) is rotatably disposed at any end of the winding drum (40); A pressing rod (42) is slidably disposed on the end cover (41) via a first sliding rod (421); A dust suction pipe (43) is slidably disposed on the end cover (41) via a second sliding rod (432), has a dust suction port (433), and is communicated with the dust suction chamber; A compression spring (44) connected between the end cover (41) and the compression rod (42); The end cover (41) is rotatably connected to a transmission gear (45), and a transmission rack (46) meshing with the transmission gear (45) is respectively installed on the first slide bar (421) and the second slide bar (432).

3. A sponge foaming conveyor according to claim 2, characterized in that: The conveying line comprises: A first bracket (330); A first sprocket (331) and a second sprocket (332) are arranged at intervals and rotatably connected to the first bracket (330), and the first sprocket (331) and / or the second sprocket (332) can be controlled to rotate by a first motor (333); A chain (334) is transmission-connected between the first sprocket (331) and the second sprocket (332); At least two conveying plates (335) mounted on the chain (334); At least two lifting hydraulic cylinders (336) are respectively installed on each conveying plate (335); Wherein, the output end of the lifting hydraulic cylinder (336) is fixedly connected to a fixing block (337) connected to the end cover (41).

4. A sponge foaming conveyor according to claim 2 or 3, characterized in that: The rewinding module and the unwinding module both include: A second bracket (50); A rotating platform (51) is rotatably disposed on the second bracket (50) and can be controlled to rotate by a second motor (52); A dust exhaust port (53) is formed on the rotating platform (51); A dust extraction pipe (34), one end of which is connected to the dust exhaust port and the other end of which is connected to a dust suction pump; When the winding drum (40) is placed on the rotating platform (51), the winding drum (40) and the rotating platform (51) form a dust suction chamber (55) that is in communication with the dust suction pipe (34).

5. A sponge foaming conveyor according to claim 4, characterized in that: The end cover (41) is provided with a filter screen (60) arranged coaxially; It also includes a flow diversion structure installed at the dust discharge port (53), the flow diversion structure including: A flow dividing cylinder (61) is formed with a flow dividing chamber (62) in communication with the dust discharge port (53); A support portion (63) is installed in the diversion cavity (62); A plurality of air extraction ports (641) are formed on the flow dividing cylinder (61) and are in communication with the flow dividing cavity (62); A plurality of dust extraction ports (642) are formed on the diverter tube (61), are communicated with the diverter chamber (62), and are located at a position of the diverter tube (61) close to the rotating platform (51); A closed structure is mounted on the support portion (63) via a return spring (65) and is axially movable in the diversion cavity (62); The closed structure has a pressure-applying end that longitudinally passes through the diverter tube (61); when the pressure-applying end descends, the closed structure opens the air extraction port (641) and closes the dust extraction port (642); and when the pressure-applying end rises, the closed structure opens the dust extraction port (642) and closes the air extraction port (641); A step surface is formed on the top of the rotating platform of the winding module. When the winding drum (40) is placed on the rotating platform (51) of the winding module, the filter screen (60) divides the dust collection chamber (55) into an inner chamber (67) and an outer chamber (68) which are coaxially arranged.

6. A sponge foaming conveyor according to claim 5, characterized in that: The closed structure comprises: A movable shaft (70) is coaxially disposed in the diversion chamber (62), and one end of the movable shaft (70) passes through the top of the diversion cylinder (61); The limiting portion (71) is formed on the movable shaft (70) and is connected to the supporting portion (63) with the return spring (72); At least two closed bodies (73) are fixedly connected to the movable shaft (70) at intervals; Wherein, each closed body (73) is matched with the air suction port (641) and the dust suction port (642) respectively, and an axially penetrating opening (730) is provided on the closed body (73); and a pressure plate (74) is rotatably connected to the end cover (41).

7. A sponge foaming conveyor according to claim 5 or 6, characterized in that: Also included is a cleaning structure mounted on the end cover, the cleaning structure comprising: At least one cleaning portion (80) is slidably disposed on the end cover (41) and is capable of moving around the filter screen (60) when moving; A main gear (81) is rotatably disposed on the end cover (41) and is capable of driving the cleaning portion (80) to move; A first driving gear (82) is rotatably disposed on the end cover (41) and meshes with the main gear (81); A second driving gear (83) is rotatably disposed on the end cover (41) and meshes with the transmission rack (46); The one-way transmission structure (9) is connected between the first driving gear (82) and the second driving gear (83).

8. The sponge foaming conveyor according to claim 7, characterized in that: The one-way transmission structure (9) comprises: A first shaft (91) is rotatably connected to the end cover (41) and is connected to a first driving gear (82); A second shaft (92) is rotatably connected to the end cover (41) and is connected to a second driving gear (83); Wherein, an inclined groove (93) is provided on the matching surfaces of the second shaft (92) and the first shaft (91), and a limit block (94) is hinged in the inclined groove (93), a limit spring (95) is fixedly connected between the limit block (94) and the inclined groove (93), and a limit groove (96) adapted to the limit block (94) is provided on the matching surfaces of the first shaft (91) and the second shaft (92).

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