Rubber paste coating mechanism

Abstract

The utility model relates to the technical field of rubber paste production, and discloses a rubber paste coating mechanism which comprises a rack, an extrusion device and a platform are arranged on the rack, an extrusion channel, a rubber paste extrusion inlet and a rubber paste extrusion outlet are arranged on the extrusion device, the rubber paste extrusion inlet and the rubber paste extrusion outlet are communicated with the extrusion channel, and the extrusion device is located above the platform. A base cloth moving channel is formed between the extruding device and the platform, the rubber paste extruding outlet is communicated with the base cloth moving channel so that extruded rubber paste can be laid on base cloth in the base cloth moving channel, and the base cloth moving channel can allow the base cloth and the rubber paste on the base cloth to pass through; the device further comprises a rubber paste feeding device, the rubber paste feeding device comprises a discharging part, a discharging opening is formed in the discharging part and right faces the rubber paste extrusion inlet, and the rubber paste feeding device can extrude rubber paste from the discharging opening and put the rubber paste into the extrusion channel. The device has the beneficial effects that the densities of all parts of the rubber paste are more uniform, the number and volume of air bubbles in the rubber paste are reduced, and the quality of finished rubber paste is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber plaster production, and particularly relates to a rubber plaster coating mechanism. Background Art

[0002] A rubber plaster refers to an external preparation in which a drug or an extract of medicinal materials is mixed with a matrix mainly composed of rubber and then coated on a backing material. Generally speaking, a rubber plaster includes a base cloth, a rubber plaster, and a film. When producing a rubber plaster, it is necessary to first coat the rubber plaster on the base cloth, and then cover the rubber plaster with a film so that the rubber plaster is located between the base cloth and the film.

[0003] The device for coating the rubber plaster on the base cloth is called a rubber plaster coating mechanism. For example, the Chinese utility model patent with the application number 201922346528.5 discloses a rubber plaster pressure coater. The rubber plaster pressure coater includes a rubber plaster hot-paving mechanism, and the rubber plaster hot-paving mechanism includes a pressing plate and a pressing roller. When in use, the heated rubber plaster is placed at the position between the pressing roller and the pressing plate. When the pressing roller rotates, along with the extrusion of the pressing plate, the rubber plaster is extruded into a pancake shape and then conveyed to the subsequent processing structure, and finally a rubber plaster is formed.

[0004] However, the above-mentioned rubber plaster pressure coater has at least the following deficiencies: Before the rubber plaster is processed by the rubber plaster coating mechanism, its volume is large and the thickness of each part may be different. If the rubber plaster is directly placed at the position between the pressing roller and the pressing plate and extruded, the finally produced rubber plaster may not be uniform enough, the density of each part of the rubber plaster may vary greatly, and there may even be air bubbles in the rubber plaster, resulting in poor quality of the finished product. Summary of the Utility Model

[0005] The main purpose of the utility model is to propose a rubber plaster coating mechanism, aiming to solve the technical problem that the rubber plaster is not uniform enough and the quality is not good after extrusion in the prior art.

[0006] To achieve the above purpose, the utility model proposes a rubber plaster coating mechanism, which includes a frame. An extrusion device and a platform are arranged on the frame. An extrusion channel, a rubber plaster extrusion inlet and a rubber plaster extrusion outlet communicating with the extrusion channel are arranged on the extrusion device. The extrusion device is located above the platform. A base cloth moving channel is formed between the extrusion device and the platform. The rubber plaster extrusion outlet communicates with the base cloth moving channel to lay the extruded rubber plaster on the base cloth in the base cloth moving channel. The base cloth moving channel allows the base cloth and the rubber plaster thereon to pass through. The rubber plaster coating mechanism further includes a rubber plaster feeding device. The rubber plaster feeding device includes a discharging part. A discharging port is arranged on the discharging part. The discharging port is directly opposite to the rubber plaster extrusion inlet. The rubber plaster feeding device can extrude the rubber plaster from the discharging port and put it into the extrusion channel.

[0007] The beneficial effects of the present utility model are as follows: Before the rubber plaster feeding device conveys the rubber plaster to the extrusion device for extrusion, a "pre-extrusion" process is first completed, extruding the rubber plaster from the discharge port and then feeding the rubber plaster into the extrusion device, which can make the density of each part of the rubber plaster more uniform, is conducive to reducing the number and volume of air bubbles inside the rubber plaster, and improves the quality of the finished rubber plaster product.

[0008] Preferably, the rubber plaster coating mechanism further includes a discharge moving device. The discharge moving device includes a moving driving device, and the discharge part is in transmission connection with the moving driving device. The moving driving device can drive the discharge part to move along the extension direction of the rubber plaster extrusion inlet, making full use of the effective extrusion part of the extrusion device to extrude the rubber plaster and improving the production efficiency.

[0009] Preferably, the moving driving device includes a moving driving motor. The discharge moving device further includes a transmission screw rod and a limiting rod arranged in parallel. Both the transmission screw rod and the limiting rod extend along the extension direction of the rubber plaster extrusion inlet. The transmission screw rod is coaxially and fixedly connected to the rotating shaft of the moving driving motor. The limiting rod is fixedly arranged on the frame. A transmission nut is arranged on the transmission screw rod, and the discharge part is arranged on the transmission nut. A sleeve is sleeved on the limiting rod, and the sleeve can move along the limiting rod. The sleeve and the transmission nut are fixedly connected.

[0010] Preferably, the discharge part includes a discharge funnel, which is conducive to improving the "pre-extrusion" effect of the rubber plaster and further improving the quality of the finished rubber plaster product.

[0011] Preferably, the rubber plaster feeding device further includes a feeding bin. A feeding hole is arranged at the bottom of the feeding bin, and the feeding hole is communicated with the discharge part. A screw conveying device is arranged on the feeding bin. The screw conveying device includes a screw conveying driving device arranged on the upper side of the feeding bin and a conveying screw arranged in the feeding bin. The screw conveying driving device and the conveying screw are in transmission connection. The conveying screw is used to convey the rubber plaster in the feeding bin to the feeding hole, which is conducive to making the density of each part of the rubber plaster more uniform and further improving the quality of the finished rubber plaster product.

[0012] Preferably, the side wall of the feeding bin includes a heating layer and a heat preservation layer arranged from the inside to the outside. A first cavity is arranged inside the heating layer for accommodating heating oil. A heating rod is arranged on the side wall of the feeding bin, and part of the heating rod is inserted into the first cavity. A second cavity is arranged inside the heat preservation layer for accommodating heat preservation cotton, which is conducive to improving the production efficiency and the quality of the finished product.

[0013] Preferably, a hose connecting frame is further arranged on the frame. A first interface and a second interface are respectively arranged on both sides of the hose connecting frame, and the first interface and the second interface are communicated. The feeding hole is communicated with the first interface through a first hose, and the second interface is communicated with the discharge part through a second hose, which can reduce the possibility that the hose affects the rubber plaster conveying efficiency due to multiple bends or excessive bends, and is conducive to improving the production efficiency.

[0014] Preferably, the extrusion device includes an extrusion driving motor, a driving extrusion roller and a driven extrusion roller. The driving extrusion roller is in transmission connection with the extrusion driving motor. Both the driving extrusion roller and the driven extrusion roller are rotatably connected to the frame. A driving gear is provided at one end of the driving extrusion roller, and a driven gear is provided at one end of the driven extrusion roller. The driving gear and the driven gear are meshed and connected; the driving extrusion roller and the driven extrusion roller are arranged side by side at intervals, and an extrusion channel is formed between the driving extrusion roller and the driven extrusion roller.

[0015] Preferably, the rubber plaster coating mechanism further includes a scraper. The scraper is provided on the frame and above the platform. A material passing gap is left between the scraper and the platform. The base cloth moving channel and the scraper are arranged in sequence along the moving direction of the base cloth. The scraper is used to scrape off the part of the rubber plaster higher than the material passing gap, so as to ensure that the thickness of each part of the rubber plaster agent is basically the same.

[0016] Preferably, a heating plate is provided on the scraper, so that the scraped rubber plaster is more likely to be separated from the un-scraped rubber plaster, which is beneficial to improving the product quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 use in the description of the embodiments or the prior art. Obviously, the following drawings 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 the structures shown in these drawings.

[0018] Figure 1 It is a schematic structural diagram of the rubber plaster coating mechanism in the embodiment of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the frame, extrusion device, discharging part, discharging moving device and cutter in the embodiment of the present invention;

[0020] Figure 3 It is a schematic structural diagram of the frame, extrusion device, discharging part, discharging moving device and cutter from another angle in the embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the positional relationship among the discharging funnel, extrusion device, platform and scraper in the embodiment of the present invention;

[0022] Figure 5 It is a schematic diagram of the positional relationship among the discharging funnel, extrusion device, platform and scraper when the extrusion device extrudes the rubber plaster and the scraper scrapes off the rubber plaster in the embodiment of the present invention. The direction indicated by the arrow in the figure is the moving direction of the base cloth;

[0023] Figure 6 This is a schematic structural diagram of the feeding bin and the first interface connected by a first hose in the embodiment of the present utility model;

[0024] Figure 7 This is a schematic structural diagram of the feeding bin.

[0025] In the drawings: 1 - frame, 2 - extrusion device, 21 - extrusion drive motor, 22 - active extrusion roller, 221 - active gear, 23 - driven extrusion roller, 231 - driven gear, 24 - extrusion channel, 241 - rubber paste extrusion inlet, 242 - rubber paste extrusion outlet, 3 - platform, 4 - rubber paste feeding device, 41 - feeding bin, 411 - material conveying hole, 42 - discharging part, 421 - discharging funnel, 4211 - discharging port, 43 - screw conveying device, 431 - screw conveying drive device, 4311 - support structure, 432 - conveying screw, 44 - heating layer, 441 - first cavity, 442 - heating rod, 45 - heat preservation layer, 451 - second cavity, 5 - discharging moving device, 51 - moving drive device, 511 - moving drive motor, 52 - transmission lead screw, 521 - transmission nut, 53 - limiting rod, 531 - sleeve, 54 - mounting plate, 6 - hose connection frame, 61 - cross plate, 611 - first interface, 6111 - first hose, 612 - second interface, 6121 - second hose, 7 - scraper, 71 - heating plate, 72 - material passing gap, 8 - base cloth moving channel, 10 - base cloth, 20 - rubber paste.

[0026] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific Embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0028] It should be noted that if there are directional indications in the embodiments of the present utility model, such as up, down, left, right, front, back, etc., the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, such descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0030] As Figures 1 to 7 shown, a rubber plaster coating mechanism includes a frame 1. An extrusion device 2 and a platform 3 are provided on the frame 1. An extrusion channel 24, a rubber plaster extrusion inlet 241 and a rubber plaster extrusion outlet 242 communicating with the extrusion channel 24 are provided on the extrusion device 2. The extrusion device 2 is located above the platform 3. A base cloth moving channel 8 is formed between the extrusion device 2 and the platform 3. The rubber plaster extrusion outlet 242 communicates with the base cloth moving channel 8 to lay the extruded rubber plaster 20 on the base cloth 10 in the base cloth moving channel 8. The base cloth moving channel 8 allows the base cloth 10 and the rubber plaster 20 thereon to pass through. It further includes a rubber plaster feeding device 4. The rubber plaster feeding device 4 includes a discharging part 42. A discharging port 4211 is provided on the discharging part 42. The discharging port 4211 faces the rubber plaster extrusion inlet 241. The rubber plaster feeding device 4 can extrude the rubber plaster 20 from the discharging port 4211 and put it into the extrusion channel 24.

[0031] Before the rubber plaster feeding device 4 transports the rubber plaster 20 to the extrusion device 2 for extrusion, a "pre-extrusion" process is first completed. The rubber plaster 20 is extruded from the discharging port 4211 and then sent into the extrusion device 2, which can make the density of each part of the rubber plaster 20 more uniform, is beneficial to reducing the number and volume of air bubbles inside the rubber plaster 20, and improves the quality of the finished rubber plaster product.

[0032] In addition, in this embodiment, by the rubber plaster feeding device 4, the rubber plaster 20 is extruded from the discharging port 4211 and put into the extrusion channel 24. The rubber plaster mass with a relatively large original volume and cross-sectional area can be extruded into a long strip with a relatively small cross-sectional area and then put into the extrusion channel 24, which can reduce the working burden of the extrusion device 2 and is beneficial to improving the service life of the extrusion device 2 and the rubber plaster coating mechanism.

[0033] In some specific embodiments, referring to Figures 1 to 3, the rubber paste coating mechanism further includes a discharging and moving device 5. The discharging and moving device 5 includes a moving driving device 51. The discharging part 42 is in transmission connection with the moving driving device 51, and the moving driving device 51 can drive the discharging part 42 to move along the extending direction of the rubber paste extrusion inlet 241.

[0034] By using the discharging and moving device 5, the rubber paste 20 extruded by the rubber paste feeding device 4 is conveyed to each corresponding position of the rubber paste extrusion inlet 241, and the effective extrusion part of the extrusion device 2 is fully utilized to extrude the rubber paste 20, thereby improving the production efficiency.

[0035] In some specific embodiments, refer to Figures 1 to 3 , the moving driving device 51 includes a moving driving motor 511. The discharging and moving device 5 further includes a transmission lead screw 52 and a limiting rod 53 arranged in parallel. Both the transmission lead screw 52 and the limiting rod 53 extend along the extending direction of the rubber paste extrusion inlet 241. The transmission lead screw 52 is coaxially and fixedly connected to the rotating shaft of the moving driving motor 511. The limiting rod 53 is fixedly arranged on the frame 1. A transmission nut 521 is arranged on the transmission lead screw 52. The discharging part 42 is arranged on the transmission nut 521. A sleeve 531 is sleeved on the limiting rod 53, and the sleeve 531 can move along the limiting rod 53. The sleeve 531 and the transmission nut 521 are fixedly connected.

[0036] Specifically, two mounting brackets are arranged on the frame 1. Mounting plates 54 are arranged on the mounting brackets, and the two mounting plates 54 are arranged side by side at intervals. A moving driving motor 511 is arranged on one side of one mounting plate 54 away from the other mounting plate 54. One end of the transmission lead screw 52 passes through the mounting plate 54 provided with the moving driving motor 511 and is coaxially and fixedly connected to the rotating shaft of the moving driving motor 511, and the other end is rotatably connected to the other mounting plate 54. Both ends of the limiting rod 53 are fixedly connected to the two mounting plates 54.

[0037] During operation, the moving driving motor 511 drives the transmission lead screw 52 to rotate. The transmission nut 521 on the transmission lead screw 52 moves along the transmission lead screw 52 under the pushing action of the thread of the transmission lead screw 52 and the limiting action of the sleeve 531, and at the same time drives the discharging part 42 arranged on the transmission nut 521 to move, so that the discharging port 4211 of the discharging part 42 can move along the rubber paste extrusion inlet 241.

[0038] In some specific embodiments, refer to Figure 2 , the discharging part 42 includes a discharging funnel 421.

[0039] The discharging funnel 421 is located directly above the extrusion channel 24, and its discharging port 4211 is directly opposite to the rubber paste extrusion inlet 241.

[0040] The rubber paste feeding device 4 conveys the rubber paste 20 to the discharge funnel 421. The shape and structure of the discharge funnel 421 determine that it has a good extrusion effect on the rubber paste 20. Through the extrusion of the discharge funnel 421, the rubber paste 20 is squeezed out from the discharge port 4211, which is beneficial to improve the "pre-extrusion" effect of the rubber paste 20 and further improve the quality of the rubber paste product.

[0041] In some other embodiments, the discharge portion 42 may adopt other structures. As long as the cross-sectional area of ​​the discharge port 4211 is smaller than the cross-sectional area of ​​the internal space of the discharge portion 42 , the discharge portion 42 can squeeze the rubber paste 20 .

[0042] In some specific embodiments, reference Figure 1 and Figure 7 The rubber paste feeding device 4 also includes a feeding bin 41, and a feeding hole 411 is provided at the bottom of the feeding bin 41, and the feeding hole 411 is connected to the discharge part 42; a screw conveying device 43 is provided on the feeding bin 41, and the screw conveying device 43 includes a screw conveying driving device 431 arranged on the upper side of the feeding bin 41 and a conveying screw 432 arranged in the feeding bin 41, and the screw conveying driving device 431 and the conveying screw 432 are transmission-connected, and the conveying screw 432 is used to convey the rubber paste 20 in the feeding bin 41 to the feeding hole 411.

[0043] Specifically, the bottom of the upper bin 41 is conical, and the feeding hole 411 is located at the lowest end of the conical bottom. A support structure 43111 is provided on the upper side of the upper bin 41 for supporting and installing a screw conveying drive device 431. The rotating shaft of the screw conveying drive device 431 faces the interior of the upper bin 41, and one end of the conveying screw 432 is coaxially fixedly connected to the rotating shaft of the screw conveying drive device 431, and the other end extends downward into the feeding hole 411.

[0044] During operation, the screw conveying driving device 431 is started to drive the conveying screw 432 to rotate, and the conveying screw 432 conveys the rubber paste 20 on its peripheral side to the feeding hole 411 and then to the discharge portion 42 .

[0045] In this embodiment, the conveying screw 432 has a stirring effect on the rubber paste 20 in the upper bin 41 when rotating, which can make the density of each part of the rubber paste 20 more uniform. The bottom of the upper bin 41 is conical, and the conveying screw 432 outputs the rubber paste 20 through the feeding hole 411, which has a certain squeezing effect on the rubber paste 20. After the rubber paste 20 is conveyed to the discharge part 42, the rubber paste 20 is squeezed out from the discharge port 4211, and the rubber paste 20 undergoes another squeezing process. Such a setting is conducive to making the density of each part of the rubber paste 20 more uniform, and further improving the quality of the finished rubber paste.

[0046] In some other embodiments, the rubber plaster feeding device 4 only includes a discharging part 42. The staff places the rubber plaster 20 in the discharging part 42 and then squeezes the rubber plaster 20 so that the rubber plaster 20 is extruded from the discharging port 4211.

[0047] In some specific embodiments, referring to Figure 7 , the side wall of the feeding bin 41 includes a heating layer 44 and a heat preservation layer 45 arranged from inside to outside. A first cavity 441 is provided inside the heating layer 44 for containing heating oil. A heating rod 442 is provided on the side wall of the feeding bin 41, and a part of the heating rod 442 is inserted into the first cavity 441; a second cavity 451 is provided inside the heat preservation layer 45 for containing heat preservation cotton.

[0048] During operation, the heating rod 442 is powered on to heat the heating oil in the first cavity 441, thereby heating the rubber plaster 20 in the feeding bin 41, which is beneficial to reducing the viscosity of the rubber plaster 20 and facilitating the stirring and conveying of the rubber plaster 20. The heat preservation layer 45 can reduce heat loss, improve the heating efficiency, and is beneficial to improving the production efficiency and the quality of the finished product.

[0049] Specifically, the heat preservation cotton includes aluminum silicate fiber, which has strong plasticity in shape and good heat preservation and heat resistance performance, further improving the heating efficiency and the production efficiency.

[0050] In some other embodiments, the heat preservation cotton includes one or more of perlite, rock wool, glass wool and foam, as long as it can play a heat preservation role.

[0051] In some specific embodiments, referring to Figure 1 , Figure 3 and Figure 6 , a hose connecting bracket 6 is further provided on the frame 1. A first interface 611 and a second interface 612 are respectively provided on both sides of the hose connecting bracket 6. The first interface 611 and the second interface 612 are communicated. The material conveying hole 411 is communicated with the first interface 611 through a first hose 6111, and the second interface 612 is communicated with the discharging part 42 through a second hose 61211.

[0052] Specifically, the hose connector 6 includes a horizontal plate 61 which is located above the discharging part 42. The first interface 611 and the second structure are both arranged on the horizontal plate 61. The first hose 6111 connects the material conveying hole 411 and the first interface 611. Under the conveying action of the conveying screw 432, the rubber paste 20 is pushed away from the material conveying hole 411 and conveyed along the first hose 6111 to the first interface 611 and the second interface 612. Since the horizontal plate 61 is located above the discharging part 42, the rubber paste 20 is conveyed from top to bottom during the process of being conveyed from the second interface 612 to the discharging part 42. Therefore, the process of the rubber paste 20 being conveyed from the second interface 612 to the discharging part 42 is relatively smooth.

[0053] Setting the hose connector 6 can reduce the possibility that the hose affects the conveying efficiency of the rubber paste 20 due to multiple bends or excessive bends, which is beneficial to improving the production efficiency.

[0054] In some specific embodiments, referring to Figures 1 to 3 , the extrusion device 2 includes an extrusion driving motor 21, a driving extrusion roller 22 and a driven extrusion roller 23. The driving extrusion roller 22 is in transmission connection with the extrusion driving motor 21. The driving extrusion roller 22 and the driven extrusion roller 23 are both rotatably connected to the frame 1. One end of the driving extrusion roller 22 is provided with a driving gear 221, and one end of the driven extrusion roller 23 is provided with a driven gear 231. The driving gear 221 and the driven gear 231 are meshed and connected; the driving extrusion roller 22 and the driven extrusion roller 23 are arranged side by side at intervals, and an extrusion channel 24 is formed between the driving extrusion roller 22 and the driven extrusion roller 23.

[0055] During operation, the extrusion driving motor 21 drives the driving extrusion roller 22 to rotate. The driving extrusion roller 22 drives the driven extrusion roller 23 to rotate through the driving gear 221 and the driven gear 231. The extrusion channel 24 is located between the driving extrusion roller 22 and the driven extrusion roller 23. The rubber paste extrusion inlet 241 is located above the extrusion channel 24, and the rubber paste extrusion outlet 242 is located below the extrusion channel 24.

[0056] In some other embodiments, the extrusion device 2 includes a combination form of an extrusion roller and an extrusion plate, and the extrusion channel 24 is located between the extrusion roller and the extrusion plate.

[0057] In some specific embodiments, referring to Figure 2 and Figure 3 , the rubber paste coating mechanism further includes a scraper 7. The scraper 7 is arranged on the frame 1 and above the platform 3. There is a material passing gap 72 between the scraper 7 and the platform 3. The base cloth moving channel 8 and the scraper 7 are arranged in sequence along the moving direction of the base cloth 10. The scraper 7 is used to scrape off the part of the rubber paste 20 that is higher than the material passing gap 72.

[0058] During operation, the base cloth 10 passes through the base cloth movement channel 8, and under the traction of the traction device, the base cloth 10 moves at a constant speed within the base cloth movement channel 8. After being extruded by the extrusion device 2, the rubber paste 20 is extruded from the rubber paste extrusion outlet 242 and falls on the base cloth 10 in a pancake shape. Since the base cloth 10 moves at a constant speed, the extruded rubber paste 20 is laid flat on the base cloth 10 and moves towards the cutter together with the base cloth 10. When the base cloth 10 passes through the material passing gap 72, the part of the rubber paste 20 on the base cloth 10 that is higher than the material passing gap 72 is scraped off by the scraper 7, so as to ensure that the thickness of each part of the rubber paste agent is basically the same. When the scraper 7 scrapes off the part of the rubber paste 20 that is higher than the material passing gap 72, it will also exert a downward pressure on the part of the rubber paste 20 that is not higher than the material passing gap 72, making the rubber paste 20 fit more closely to the base cloth 10.

[0059] In some specific embodiments, referring to Figure 2 , a heating plate 71 is provided on the scraper 7.

[0060] The heating plate 71 heats the scraper 7. When the scraper 7 scrapes the rubber paste 20, the heat can be transferred to the rubber paste 20, reducing the viscosity of the rubber paste 20, making the scraped rubber paste 20 easier to separate from the un-scraped rubber paste 20, which is beneficial to improving product quality and production efficiency.

[0061] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A rubber paste coating mechanism, characterized in that: The invention comprises a frame (1), wherein an extrusion device (2) and a platform (3) are provided on the frame (1), wherein an extrusion channel (24) and a rubber paste extrusion inlet (241) and a rubber paste extrusion outlet (242) connected to the extrusion channel (24) are provided on the extrusion device (2), wherein the extrusion device (2) is located above the platform (3), and a base fabric moving channel (8) is formed between the extrusion device (2) and the platform (3), wherein the rubber paste extrusion outlet (242) is connected to the base fabric moving channel (8) so as to lay the extruded rubber paste (20) on the base fabric (10) in the base fabric moving channel (8), and wherein the base fabric moving channel (8) allows the base fabric (10) and the rubber paste (20) thereon to pass through; The invention also comprises a rubber paste feeding device (4), wherein the rubber paste feeding device (4) comprises a discharge portion (42), wherein the discharge portion (42) is provided with a discharge port (4211), wherein the discharge port (4211) is directly opposite to the rubber paste extrusion inlet (241), and the rubber paste feeding device (4) can extrude the rubber paste (20) from the discharge port (4211) and discharge the rubber paste into the extrusion channel (24).

2. The rubber paste coating mechanism according to claim 1, characterized in that: The invention also comprises a material discharging moving device (5), wherein the material discharging moving device (5) comprises a moving driving device (51), the material discharging portion (42) is transmission-connected to the moving driving device (51), and the moving driving device (51) can drive the material discharging portion (42) to move along the extension direction of the rubber paste extrusion inlet (241).

3. The rubber paste coating mechanism according to claim 2, characterized in that: The mobile drive device (51) comprises a mobile drive motor (511), and the material discharging mobile device (5) further comprises a transmission screw (52) and a limit rod (53) arranged in parallel, wherein the transmission screw (52) and the limit rod (53) both extend along the extension direction of the rubber paste extrusion inlet (241), the transmission screw (52) is coaxially fixedly connected to the rotating shaft of the mobile drive motor (511), the limit rod (53) is fixedly arranged on the frame (1), the transmission screw (52) is provided with a transmission nut (521), the material discharging portion (42) is arranged on the transmission nut (521), the limit rod (53) is sleeved with a sleeve (531), the sleeve (531) can move along the limit rod (53), and the sleeve (531) and the transmission nut (521) are fixedly connected.

4. The rubber paste coating mechanism according to claim 1, 2 or 3, characterized in that: The discharge portion (42) comprises a discharge funnel (421).

5. The rubber paste coating mechanism according to claim 1, characterized in that: The rubber paste feeding device (4) further comprises a feeding bin (41), the bottom of the feeding bin (41) is provided with a feeding hole (411), and the feeding hole (411) is communicated with the discharge portion (42); The upper bin (41) is provided with a screw conveying device (43), the screw conveying device (43) comprising a screw conveying driving device (431) arranged on the upper side of the upper bin (41) and a conveying screw (432) arranged in the upper bin (41), the screw conveying driving device (431) and the conveying screw (432) being transmission-connected, and the conveying screw (432) is used to convey the rubber paste (20) in the upper bin (41) to the feeding hole (411).

6. The rubber paste coating mechanism according to claim 5, characterized in that: The side wall of the upper material bin (41) comprises a heating layer (44) and a heat-insulating layer (45) arranged from the inside to the outside, a first cavity (441) is provided inside the heating layer (44), and the first cavity (441) is used to contain heating oil, and a heating rod (442) is provided on the side wall of the upper material bin (41), and the heating rod (442) is partially inserted into the first cavity (441); A second cavity (451) is provided inside the thermal insulation layer (45), and the second cavity (451) is used to accommodate thermal insulation cotton.

7. The rubber paste coating mechanism according to claim 5, characterized in that: The frame (1) is also provided with a hose connection frame (6), and the two sides of the hose connection frame (6) are respectively provided with a first interface (611) and a second interface (612), the first interface (611) and the second interface (612) are connected, the material delivery hole (411) is connected to the first interface (611) through a first hose (6111), and the second interface (612) is connected to the discharge portion (42) through a second hose (6121).

8. The rubber paste coating mechanism according to claim 1, characterized in that: The extrusion device (2) comprises an extrusion drive motor (21), an active extrusion roller (22) and a driven extrusion roller (23); the active extrusion roller (22) and the extrusion drive motor (21) are transmission-connected; the active extrusion roller (22) and the driven extrusion roller (23) are both rotationally connected to the frame (1); one end of the active extrusion roller (22) is provided with a driving gear (221); one end of the driven extrusion roller (23) is provided with a driven gear (231); the driving gear (221) and the driven gear (231) are meshingly connected; The active squeezing roller (22) and the driven squeezing roller (23) are arranged side by side with an interval, and the squeezing channel (24) is formed between the active squeezing roller (22) and the driven squeezing roller (23).

9. The rubber paste coating mechanism according to claim 1, characterized in that: It also includes a scraper (7), which is arranged on the frame (1) and located above the platform (3), with a feeding gap (72) left between the scraper (7) and the platform (3), and the base fabric moving channel (8) and the scraper (7) are arranged in sequence along the moving direction of the base fabric (10), and the scraper (7) is used to scrape off the portion of the rubber paste (20) that is higher than the feeding gap (72).

10. The rubber paste coating mechanism according to claim 9, characterized in that: The scraper (7) is provided with a heating plate (71).

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