Base pasting system for hemp fiber carpet

Abstract

The present invention discloses a base-attaching system for hemp fiber carpets. The base frame is sequentially provided with a carpet unwinding roller, a glue spraying box, a base-attaching roller, a press roller, and a carpet take-up roller. The base frame is also provided with a carpet conveying device, which extends from the glue spraying box. The glue spraying box is provided with a glue spraying head and a heating hood, which are located above the carpet conveying device and in sequence along the direction of carpet conveyance. The top of the glue spraying box is provided with a negative pressure air duct A, which is connected to a glue collection box via a negative pressure fan A. As can be seen from the above structure, the base-attaching system for hemp fiber carpets of the present invention allows the glue spraying process before the carpet is attached to the base layer to be completed within the glue spraying box, preventing the sprayed glue from polluting the surrounding production environment and affecting human health. The heating hood increases the viscosity of the glue, thereby more effectively bonding it to the carpet surface and facilitating the fixation of the carpet to the base layer. It also increases the flexibility of the hemp fiber carpet itself, facilitating subsequent pressing and attaching to the base layer.

Description

Technical Field

[0001] The invention relates to the technical field of equipment for producing hemp fiber carpets, and in particular to a base layer pasting system for hemp fiber carpets. Background Art

[0002] Carpets' primary functions include sound insulation, improving air quality, enhancing safety (e.g., preventing slipping), and providing decorative effects. There are numerous types of carpets available, and with increasing consumer awareness of environmental protection, carpets made directly from natural fibers are becoming increasingly popular. Natural fiber carpets currently on the market primarily include sisal, jute, bamboo, wood, and straw fibers, with hemp being the most popular. Existing hemp carpets have a base layer fixed to one end. This base layer serves as the carpet's underside, contacting the floor and providing protection and preventing slipping. Currently, the base layer is typically secured to the hemp fiber by sewing or gluing. Sewing typically only secures the base layer to the carpet's edges, leaving the center portion of the base layer unattached to the hemp carpet. This poor adhesion between the base layer and the carpet compromises the anti-slip performance during use. While gluing can achieve a relatively perfect fit between the base and the carpet, the current process involves manual application of glue, which is not only inefficient and labor-intensive, but also cannot guarantee uniform application. Furthermore, manual application can negatively impact the health of workers. Some mechanized and automated gluing machines are exposed to the production environment, causing environmental contaminants to adhere to the adhesive layer and affect adhesion. Furthermore, toxic and hazardous substances in the glue can volatilize during the application process, polluting the environment and impacting the health of workers. Summary of the Invention

[0003] The object of the present invention is to overcome the shortcomings of the prior art and provide a base layer pasting system for a hemp fiber carpet. By utilizing the functions of a glue spraying box and a negative pressure air duct A, the glue spraying process before pasting and fixing the carpet base layer can be completed within the glue spraying box, thereby preventing the glue sprayed from escaping from the strip-shaped through holes of the glue spraying box and polluting the surrounding production environment, thereby affecting the health of the operators. In addition, the heating cover within the glue spraying box can not only increase the viscosity of the glue so that it can more effectively bond with the carpet surface and facilitate the pasting and fixation of the carpet to the base layer, but also increase the flexibility of the hemp fiber carpet itself, thereby facilitating the subsequent pressing and pasting and fixation with the base layer.

[0004] The technical solution adopted by the present invention is:

[0005] A base layer pasting system for a hemp fiber carpet comprises a base frame, on which a carpet unwinding roller, a glue spraying box, a base layer unwinding roller, a pressing roller, and a carpet winding roller are sequentially arranged from one end to the other end. The base frame is also provided with a carpet conveying device for conveying the carpet from the carpet unwinding roller to the carpet winding roller, and the two ends of the carpet conveying device are respectively extended from the lower parts of the two opposite side walls of the glue spraying box. A glue spraying head and a heating cover are sequentially arranged in the glue spraying box above the carpet conveying device and along the conveying direction of the carpet conveying device. A glue spraying nozzle is also fixed to the bottom of the glue spraying head, and the glue outlet of the glue spraying nozzle is a horizontal strip structure perpendicular to the conveying direction of the carpet conveying device. A negative pressure air duct A is provided on the top of the glue spraying box, and the negative pressure air duct A is connected to the glue collection box through a negative pressure fan A. The carpet wound by the carpet unwinding roller enters the glue spraying box through a carpet conveying device. The glue spraying head sprays glue on the top surface of the carpet and then conveys it to a heating cover for heating. The heated carpet is conveyed out of the glue spraying box and is pressed with the base layer wound by the base layer unwinding roller through a pressing roller and then wound on the carpet winding roller. The carpet winding roller is driven by a driving device A, and the carpet conveying device is driven by a driving device B. The conveying speed of the carpet conveying device is equal to the winding linear speed of the carpet winding roller, the linear speed of the carpet unwinding roller, and the unwinding linear speed of the base layer unwinding roller.

[0006] A further improvement of the present invention is that the carpet conveying device includes horizontal transmission chains symmetrically arranged on both sides, a plurality of horizontal cross bars are fixedly connected between the transmission chains, and the spacing between two adjacent horizontal cross bars is equal. The side walls of the spray glue box are respectively provided with strip-shaped through holes corresponding to the horizontal cross bars, and the horizontal cross bars and the transmission chains respectively enter or leave the spray glue box through the strip-shaped through holes.

[0007] A further improvement of the present invention is that the heating hood includes a trough body with a notch facing downward and facing the carpet conveying device, an inner wall of the trough body is fixedly provided with a heat insulation layer A, and a heating device is fixedly provided on the bottom surface of the heat insulation layer A on the top surface of the trough body. The end face of the trough body corresponding to the side where the transmission chain is located is fixedly connected to the corresponding side wall of the spray box, and the notch edge of the trough body is flush with the upper edge of the strip through hole located above.

[0008] A further improvement of the present invention is that the position of the glue spraying head is higher than the slot of the trough body, and the glue spraying head discharges glue obliquely downward along the conveying direction of the carpet conveying device. The bottom edge of the side wall of the trough body facing the glue spraying head is provided with a horizontal plate extending toward the glue spraying head, and the edge of the horizontal plate facing the glue spraying head is also fixedly connected with a ramp A, and the ramp A is inclined downward along the conveying direction of the carpet conveying device, and the highest edge of the ramp A extends to above the glue nozzle position of the glue spraying head, and the edges of the horizontal plate and the ramp A corresponding to the side where the transmission chain is located are fixedly connected to the corresponding side wall of the glue spraying box, and the top surfaces of the ramp A and the horizontal plate are fixedly provided with an insulation layer B.

[0009] A further improvement of the present invention is that a ramp B and a ramp C are fixedly connected in the glue spraying box at a position between the upper horizontal cross bar and the lower horizontal cross bar to which the transmission chain is fixedly connected. The ramp B is inclined upward along the conveying direction of the carpet conveying device, and the ramp C is inclined downward along the conveying direction of the carpet conveying device. The top edge of the ramp B is fixedly connected to the top edge of the ramp C, and the connection between the ramp B and the ramp C is located directly below the connection between the trough body and the horizontal plate. The edges of the ramp B and the ramp C corresponding to the side where the transmission chain is located are fixedly connected to the corresponding side walls of the glue spraying box. The bottom edge of the ramp B extends to below the position of the ramp A, and the bottom edge of the ramp C extends to extend out of the outside of the glue spraying box.

[0010] A further improvement of the present invention is that a glue collecting trough is placed at the bottom of the glue spray box, below the ramp A. The edge of the glue collecting trough corresponding to the side where the transmission chain is located is in contact with the corresponding side wall of the glue spray box. The notch of the glue collecting trough is lower than the lowest point of the horizontal cross bar. The lower edge of the strip-shaped through hole located below in the side wall of the glue spray box facing the carpet unwinding roller passes downward through the side wall.

[0011] A further improvement of the present invention is that the size of the glue collecting trough along the carpet conveying direction is greater than the distance between the ramp B and the side wall of the glue spraying box facing the carpet unwinding roller.

[0012] A further improvement of the present invention is that the lower edge of the strip-shaped through hole located above in the side wall of the glue spray box facing the carpet winding roller extends downward to fit with the bottom of the ramp C, and the ramp C is connected to the glue collecting groove fixedly provided on the outside of the glue spray box, and the bottom of the glue collecting groove is flush with the upper edge of the strip-shaped through hole located below, and the notch height of the glue collecting groove is lower than or equal to the height of the connection between the ramp B and the ramp C, and the glue collecting groove is fixedly connected to the base frame corresponding to the side wall on the side where the transmission chain is located.

[0013] A further improvement of the present invention is that a plurality of glue spraying heads are provided, and the glue spraying heads are distributed at equal intervals along the guide rod A fixedly connected horizontally in the glue spraying box.

[0014] A further improvement of the present invention is that a positioning vertical plate is further provided in the glue spraying box, which moves back and forth along the axial direction of the guide rod A. The top and both sides of the positioning vertical plate are in contact with the inner wall of the glue spraying box. The positioning vertical plate is provided with a matching rod hole A corresponding to the guide rod A. The bottom edge of the positioning vertical plate is located between the top and bottom surfaces of the carpet on the carpet conveying device, and a matching inclined hole, notch A and notch B are provided corresponding to the slope plate A, the horizontal plate and the trough body respectively. The inclined hole, notch A and notch B are connected to each other, and the glue spraying head and the negative pressure air duct A are both located on the same side of the positioning vertical plate. On one side, the same springs are respectively arranged on both sides of the guide rod A and the glue spraying head, and the ends of the springs are fixedly connected to the corresponding glue spraying head or the corresponding inner wall of the glue spraying box or the corresponding positioning vertical plate. The end face of the positioning vertical plate on the side facing away from the glue spraying head is connected to the end of the adjusting bolt through the provided connecting head. The adjusting bolt is axially fixed to the connecting head and is rotatably connected to the connecting head around the axis of the adjusting bolt. The adjusting bolt is threadedly connected to the side wall of the glue spraying box on the side of the positioning vertical plate facing away from the glue spraying head, and a hand pan is fixed on the end of the adjusting bolt extending out of the glue spraying box.

[0015] A further improvement of the present invention is that a plurality of axial strip grooves are evenly distributed on the side wall of the guide rod A, the glue spraying head is provided with matching positioning protrusions A corresponding to the strip grooves, and the through-rod hole A is provided with matching positioning protrusions B corresponding to the strip grooves.

[0016] A further improvement of the present invention is that a guide rod B arranged parallel to the guide rod A is fixedly connected inside the spray box and located above the slope plate A, the horizontal plate and the trough body, and the positioning vertical plate is provided with a matching rod hole B corresponding to the guide rod B.

[0017] A further improvement of the present invention is that there are multiple guide rods B, the rod holes B corresponding to the guide rods B are evenly distributed on the positioning vertical plate, and the connecting head is located at the center of the figure surrounded by the rod holes B.

[0018] A further improvement of the present invention is that a straightening roller A and a guide roller A are sequentially provided on the base frame above the carpet unwinding roller, the straightening roller A and the guide roller A being parallel to the carpet unwinding roller, the carpet on the carpet unwinding roller being sequentially wound in reverse from above around the top of the straightening roller A and then around the bottom of the guide roller A from below, the bottom surface of the carpet wound around the bottom of the guide roller A being flush with the top surface of the upper horizontal crossbar to which the transmission chain is fixedly connected.

[0019] A further improvement of the present invention is that a brush roller is further provided on the base frame above the straightening roller A. The brush roller is parallel to the straightening roller A, and a driving force is provided to the brush roller by a driving device C.

[0020] A further improvement of the present invention is that a dust hood is provided on the base frame corresponding to the brush roller, the brush roller and the straightening roller A are both located in the dust hood, and a negative pressure air duct B is connected to the top of the dust hood, and the negative pressure air duct B is connected to the dust removal device A through a negative pressure fan B.

[0021] A further improvement of the present invention is that after the brush roller contacts the carpet wound on the straightening roller A, the bristles facing the top of the straightening roller A rotate upward.

[0022] A further improvement of the present invention is that an operating platform is fixedly provided above the base frame, between the guide roller A and the glue spraying box, the operating platform spans above the base frame, and the top surface of the operating platform is fixedly connected to a railing at the edge facing the glue spraying box and the edge facing away from the glue spraying box.

[0023] A further improvement of the present invention is that an observation window is provided above the side wall of the glue spraying box facing the operating platform, and the observation window is sealed and fixedly connected to glass.

[0024] A further improvement of the present invention is that a horizontal dust suction pipe is fixedly connected to the side wall of the glue spray box facing the carpet unwinding roller, and a negative pressure air duct C is connected to the top of the horizontal dust suction pipe. The negative pressure air duct C is connected to the dust removal device B through the negative pressure fan C, and the dust suction pipe opening at the bottom of the horizontal dust suction pipe is a strip dust suction hole arranged parallel to the horizontal cross bar, and the lowest position of the bottom of the horizontal dust suction pipe is flush with the upper edge of the strip through hole located above.

[0025] A further improvement of the present invention is that the dust suction pipe opening of the horizontal dust suction pipe is tilted downward along the conveying direction of the carpet conveying device, and the lowest point of the dust suction pipe opening is flush with the upper edge of the strip-shaped through hole located above.

[0026] A further improvement of the present invention is that a guide roller B is provided on the base frame at a position on the side of the glue spray box facing the carpet winding roller, and the base layer of the base unwinding roller is wound around the guide roller B from below and passes through the gap between the pressing roller and the conveying device together with the carpet.

[0027] A further improvement of the present invention is that the surface of the nip roller is evenly distributed with pressing convex patterns.

[0028] A further improvement of the present invention is that a straightening roller B is provided on the base frame between the pressing roller and the carpet winding roller. The carpet with the base layer pressed and fixed by the pressing roller is reversely wound from above on the top of the straightening roller B and then wound on the carpet winding roller.

[0029] A further improvement of the present invention is that the top surface of the straightening roller B is flush with the top of the upper horizontal crossbar to which the transmission chain is fixedly connected.

[0030] A further improvement of the present invention is that both ends of the horizontal transmission chain are respectively driven by transmission wheels, and the transmission wheels provide driving force through a driving device B.

[0031] A further improvement of the present invention is that the negative pressure value in the glue spray box is smaller than the negative pressure value in the dust hood, and the negative pressure value in the dust hood is smaller than the negative pressure value in the horizontal dust suction pipe.

[0032] The beneficial effects of the present invention are:

[0033] First, the base layer pasting system for hemp fiber carpets of the present invention, through the functions of the glue spraying box and the negative pressure air duct A, allows the glue spraying process before the carpet base layer is pasted and fixed to be completed in the glue spraying box, thereby preventing the glue sprayed from escaping from the strip-shaped through holes of the glue spraying box and polluting the surrounding production environment, thereby affecting the health of the operators. In addition, the heating cover in the glue spraying box not only increases the viscosity of the glue so that it can more effectively bond with the carpet surface and facilitate the pasting and fixing of the carpet to the base layer, but also increases the flexibility of the hemp fiber carpet itself, thereby facilitating the subsequent pressing and pasting and fixing with the base layer.

[0034] Secondly, the base layer pasting system for hemp fiber carpets of the present invention can prevent the glue sprayed by the glue spray head from being dispersed in the glue spray box as much as possible through the action of the ramp A fixed in the glue spray box, and can block the glue that does not fall on the carpet after being sprayed by the glue spray head or the glue that splashes on the carpet and make it fall evenly on the carpet again.

[0035] Third, the base layer gluing system for the hemp fiber carpet of the present invention, through the action of a horizontal plate fixed in the glue spraying box, can prevent the glue diffused in the glue spraying box from falling onto the carpet located directly below the horizontal plate. As a result, the amount and distribution of glue on the carpet surface are uniform and stable when the carpet enters the heating hood. Moreover, when the carpet enters the heating hood, the diffused glue on the carpet surface will not adhere to the inner wall of the heating hood or to the carpet itself due to heat.

[0036] Fourth, the base layer pasting system of the hemp fiber carpet of the present invention is that the hemp fiber carpet is woven with warp and weft threads of hemp fiber. Since hemp fiber is relatively coarse and does not reach the weaving density of carpets such as cotton fiber, there will be certain gaps. A small portion of the glue sprayed by the glue spray head will pass through the gaps and fall downward. The function of the ramp B and the glue collection trough can collect the glue falling from the carpet, thereby facilitating the reuse of the glue, reducing production costs, and avoiding glue contamination.

[0037] Fifth, the base layer pasting system of the hemp fiber carpet of the present invention, through the functions of the ramp C and the glue collecting tank, can collect the heated glue in the heating tank and the heated glue falling downward from the carpet after passing through the heating tank, thereby facilitating the recycling of the glue, which can be reused after treatment, thereby reducing production costs and avoiding glue contamination.

[0038] Sixth, the base layer pasting system of the hemp fiber carpet of the present invention, through the structure of the positioning vertical plate and the glue spraying head and the guide rod A, can enable carpets of different sizes and specifications to be accurately positioned and glued after being sprayed with glue through the present application, and can ensure that the glue spraying head sprays glue evenly onto the carpet, and can also minimize the glue diffused in the glue spraying box, thereby avoiding glue waste as much as possible.

[0039] Seventh, the base layer pasting system of the ramie fiber carpet of the present invention facilitates the horizontal movement of the positioning plate through the action of the guide rods A and B, and provides sufficient supporting force for the positioning plate.

[0040] Eighth, the base layer pasting system of the hemp fiber carpet of the present invention ensures the stability and uniformity of the adjustment force exerted by the adjustment bolt on the positioning plate by locating the connecting head of the adjustment bolt at the center of the figure surrounded by the through-rod hole B, thereby preventing the positioning plate from being unable to remain vertical due to the force point not being at the center, thereby preventing the positioning plate from being stuck between the through-rod hole A and the knife rod A or between the through-rod hole B and the guide rod B, thereby affecting the adjustment movement of the positioning plate.

[0041] Ninth, the base layer pasting system of the hemp fiber carpet of the present invention can straighten the carpet unwound by the carpet unwinding roller through the action of the straightening roller A, thereby preventing the previously rolled-up carpet from being bent and unable to be straightened during the conveying process due to internal stress, thereby affecting the subsequent uniformity of glue spraying and the base layer pasting effect.

[0042] Tenth, the base layer pasting system of the hemp fiber carpet of the present invention, through the action of the straightening roller B, can reduce the pressure on the carpet when the base layer is pressed and pasted to the carpet, which causes the hemp fibers of the carpet with relatively high flexibility to generate internal stress and cause the carpet to bend, thereby avoiding affecting future sales and use.

[0043] Eleventh, the base layer pasting system of the hemp fiber carpet of the present invention can remove dust and impurities as well as burrs and other debris on the carpet surface by means of a brush roller, thereby ensuring the cleanliness of the carpet surface as much as possible and preventing dirt on the carpet surface from affecting the bonding between the glue and the carpet, thereby affecting the pasting effect between the base layer and the carpet.

[0044] Twelfth, in the base layer pasting system of the hemp fiber carpet of the present invention, the brush roller is arranged on the upper part of the straightening roller A, so that during straightening, the surface of the carpet to be pasted with the base layer can be scraped by the brush roller while it is in an extended state under the action of the straightening roller A, thereby ensuring the scraping effect of the brush roller.

[0045] Thirteenth, the base layer pasting system of the hemp fiber carpet of the present invention can directly absorb the impurities just scraped off the carpet by the brush roller through the function of the dust suction hood and the steering setting of the brush roller, thereby avoiding environmental pollution.

[0046] Fourteenth, the base layer pasting system of the hemp fiber carpet of the present invention, through the function of the guide roller A, horizontally conveys the carpet to the carpet conveying device, thereby ensuring the glue spraying effect of the carpet and the base layer pasting and fixing effect.

[0047] Fifteenth, the base layer pasting system of the hemp fiber carpet of the present invention, through the function of the operating platform, not only can the operator observe the effect of the carpet scraping and brushing, but also can manually spray glue before the application is run and before the carpet is wound onto the carpet winding roller, and can also observe the inside of the glue spraying box through the observation window during the operation of the application.

[0048] Sixteenth, the base layer pasting system of the hemp fiber carpet of the present invention can once again remove impurities from the carpet surface when the carpet enters the glue spraying box through the action of the horizontal suction pipe, thereby ensuring that there are no impurities on the carpet surface that affect the glue spraying effect and the base layer pasting and fixing effect when the carpet enters the glue spraying box.

[0049] Seventeenth, the base layer pasting system of the hemp fiber carpet of the present invention can more effectively paste and fix the base layer to the carpet surface through the pressing ridges provided on the surface of the nip roller, because the carpet itself has a certain flexibility.

[0050] 18. The base layer pasting system of the hemp fiber carpet of the present invention can spray glue evenly onto the carpet through the structure of the glue spraying nozzle, thereby ensuring the uniformity of glue on the carpet surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a schematic front cross-sectional view of the present invention.

[0052] Figure 2 This is an enlarged schematic diagram of the main view of the positioning vertical plate.

[0053] Figure 3 It is a schematic cross-sectional view of the upper part of the spray box, with the heating cover, ramp A, horizontal plate and guide rod B hidden. DETAILED DESCRIPTION

[0054] Combine Figures 1 to 3It can be seen that the base pasting system of the hemp fiber carpet includes a base frame 1, on which a carpet unwinding roller 3, a glue spraying box 2, a base unwinding roller 7, a pressing roller 8 and a carpet winding roller 9 are sequentially provided along the direction from one end to the other end. The base frame 1 is also provided with a carpet conveying device for conveying the carpet from the carpet unwinding roller 3 to the carpet winding roller 9. The two ends of the carpet conveying device are respectively extended from the lower part of the two opposite side walls of the glue spraying box 2. The glue spraying box 2 is located above the carpet conveying device and is sequentially provided with a glue spraying head 5 and a heating cover 6 along the conveying direction of the carpet conveying device. A glue spraying nozzle 16 is also fixed to the bottom of the glue spraying head 5. The glue outlet of the glue spraying nozzle 16 is a horizontal strip structure perpendicular to the conveying direction of the carpet conveying device. A negative pressure air duct A10 is provided on the top of the glue spraying box 2, and the negative pressure air duct A10 is connected to the glue collection box through the negative pressure fan A. The carpet 51 wound by the carpet unwinding roller 3 enters the glue spraying box 2 through the carpet conveying device. The glue spraying head 5 sprays glue on the top surface of the carpet 51 and then conveys it to the heating cover 6 for heating. The heated carpet 51 is conveyed out of the glue spraying box 2 and is pressed with the base layer 52 wound by the base layer unwinding roller 7 through the pressing roller 8 and then wound on the carpet winding roller 9. The carpet winding roller 9 is provided with driving force by the driving device A, and the carpet conveying device is provided with driving force by the driving device B. The conveying speed of the carpet conveying device is equal to the winding linear speed of the carpet winding roller 9, the linear speed of the carpet unwinding roller 3 and the unwinding linear speed of the base layer unwinding roller 7.

[0055] The carpet conveying device includes horizontal transmission chains 33 symmetrically arranged on both sides, and multiple horizontal cross bars 4 are fixedly connected between the transmission chains 33. The spacing between two adjacent horizontal cross bars 4 is equal. The side walls of the spray glue box 2 are respectively provided with strip-shaped through holes 27 corresponding to the horizontal cross bars 4. The horizontal cross bars 4 and the transmission chains 33 respectively enter or leave the spray glue box 2 through the strip-shaped through holes 27.

[0056] The heating cover 6 includes a trough body 17 with the notch facing downward and facing the carpet conveying device. The inner wall of the trough body 17 is fixedly provided with a heat insulation layer A18. The bottom surface of the heat insulation layer A18 on the top surface of the trough body 17 is fixedly provided with a heating device 19. The end surface of the trough body 17 corresponding to the side where the transmission chain 33 is located is fixedly connected to the corresponding side wall of the spray box 2, and the notch edge of the trough body 17 is flush with the upper edge of the strip through hole 27 located above.

[0057] The position of the glue spraying head 5 is higher than the slot of the trough body 17, and the glue spraying head 5 discharges glue obliquely downward along the conveying direction of the carpet conveying device. The bottom edge of the side wall of the trough body 17 facing the glue spraying head 5 is provided with a horizontal plate 21 extending toward the glue spraying head 5. The edge of the horizontal plate 21 facing the glue spraying head 5 is also fixedly connected with a ramp plate A20. The ramp plate A20 is inclined downward along the conveying direction of the carpet conveying device, and the highest edge of the ramp plate A20 extends to above the position of the glue nozzle 16 of the glue spraying head 5. The edges of the horizontal plate 21 and the ramp plate A20 corresponding to the side where the transmission chain 33 is located are fixedly connected to the corresponding side wall of the glue spraying box 2, and the top surfaces of the ramp plate A20 and the horizontal plate 21 are fixedly provided with a heat insulation layer B22.

[0058] A ramp B23 and a ramp C24 are fixedly connected inside the glue spraying box 2 at a position between the upper horizontal cross bar 4 and the lower horizontal cross bar 4 to which the transmission chain 33 is fixedly connected. The ramp B23 is inclined upward along the conveying direction of the carpet conveying device, and the ramp C24 is inclined downward along the conveying direction of the carpet conveying device. The top edge of the ramp B23 is fixedly connected to the top edge of the ramp C24, and the connection between the ramp B23 and the ramp C24 is located directly below the connection between the trough body 17 and the horizontal plate 21. The edges of the ramp B23 and the ramp C24 corresponding to the side where the transmission chain 33 is located are fixedly connected to the corresponding side walls of the glue spraying box 2. The bottom edge of the ramp B23 extends to below the position of the ramp A20, and the bottom edge of the ramp C24 extends to extend out of the outside of the glue spraying box 2.

[0059] A glue collecting trough 25 is placed at the bottom of the glue spraying box 2, below the ramp A20. The edge of the glue collecting trough 25 corresponding to the side where the transmission chain 33 is located is in contact with the corresponding side wall of the glue spraying box 2. The notch of the glue collecting trough 25 is lower than the lowest point of the horizontal cross bar 4. The lower edge of the strip-shaped through hole 27 located below in the side wall of the glue spraying box 2 facing the carpet unwinding roller 3 passes through the side wall downward.

[0060] The size of the glue collecting trough 25 along the carpet conveying direction is greater than the distance between the ramp B23 and the side wall of the glue spraying box 2 facing the carpet unwinding roller 3.

[0061] The lower edge of the strip-shaped through hole 27 located above in the side wall of the glue spray box 2 facing the carpet winding roller 9 extends downward to fit with the bottom of the ramp C24. The ramp C24 is connected to the glue collecting groove 26 fixedly provided on the outside of the glue spray box 2. The bottom of the glue collecting groove 26 is flush with the upper edge of the strip-shaped through hole 27 located below. The notch height of the glue collecting groove 26 is lower than or equal to the height of the connection between the ramp B23 and the ramp C24. The glue collecting groove 26 is fixedly connected to the base frame 1 corresponding to the side wall on the side where the transmission chain 33 is located.

[0062] There are multiple glue spraying heads 5, and the glue spraying heads 5 are distributed at equal intervals along the guide rod A15 horizontally fixedly connected in the glue spraying box 2.

[0063] The glue spray box 2 is also provided with a positioning vertical plate 41 that moves back and forth along the axial direction of the guide rod A15. The top and both sides of the positioning vertical plate 41 are in contact with the inner wall of the glue spray box 2. The positioning vertical plate 41 is provided with a matching rod hole A42 corresponding to the guide rod A15. The bottom edge of the positioning vertical plate 41 is located between the top and bottom surfaces of the carpet 51 on the carpet conveying device, and corresponding to the ramp plate A20, the horizontal plate 21 and the trough body 17, there are respectively provided with matching inclined holes 43, notches A44 and notches B45. The inclined holes 43, notches A44 and notches B45 are interconnected. The glue spray head 5 and the negative pressure air duct A10 are both located on the same side of the positioning vertical plate 41. The same springs 39 are respectively mounted on the guide rod A15 on both sides of the glue spraying head 5. The ends of the springs 39 are fixedly connected to the corresponding glue spraying head 5 or the corresponding inner wall of the glue spraying box 2 or the corresponding positioning vertical plate 41. The end face of the positioning vertical plate 41 facing away from the glue spraying head 5 is connected to the end of the adjusting bolt 49 through the provided connecting head 48. The adjusting bolt 49 is axially fixed to the connecting head 48 and is rotatably connected to the connecting head 48 around the axis of the adjusting bolt 49. The adjusting bolt 49 is threadedly connected to the side wall of the glue spraying box 2 located on the side of the positioning vertical plate 41 facing away from the glue spraying head 5. A hand disk 50 is fixed on the end of the adjusting bolt 49 extending out of the glue spraying box 2.

[0064] The side wall of the guide rod A15 is evenly distributed with multiple axial strip grooves 38 , the glue spraying head 5 is provided with matching positioning protrusions A corresponding to the strip grooves, and the through-rod hole A42 is provided with matching positioning protrusions B46 corresponding to the strip grooves 38 .

[0065] A guide rod B40 parallel to the guide rod A15 is fixedly connected inside the glue spray box 2 and located above the slope plate A20, the horizontal plate 21 and the trough body 17. The positioning vertical plate 41 is provided with a matching rod hole B47 corresponding to the guide rod B40.

[0066] There are multiple guide rods B40, and the rod holes B47 corresponding to the guide rods B40 are evenly distributed on the positioning vertical plate 41. The connecting head 48 is located at the center of the figure surrounded by the rod holes B47.

[0067] On the base frame 1, above the carpet unwinding roller 3, a straightening roller A11 and a guide roller A12 are sequentially provided. The straightening roller A11 and the guide roller A12 are both parallel to the carpet unwinding roller 3. The carpet 51 of the carpet unwinding roller 3 is sequentially wound around the top of the straightening roller A11 in reverse from above, and then wound around the bottom of the guide roller A12 from below. The bottom surface of the carpet 51 wound around the bottom of the guide roller A12 is flush with the top surface of the upper horizontal crossbar 4 to which the transmission chain 33 is fixedly connected.

[0068] A brush roller 53 is further provided on the base frame 1 above the straightening roller A11. The brush roller 53 is parallel to the straightening roller A11, and the driving force of the brush roller 53 is provided by the driving device C.

[0069] A dust hood 54 is provided on the base frame 1 corresponding to the brush roller 53. The brush roller 53 and the straightening roller A11 are both located in the dust hood 54. A negative pressure air duct B34 is connected to the top of the dust hood 54. The negative pressure air duct B34 is connected to the dust removal device A through the negative pressure fan B.

[0070] After the brush roller 53 contacts the carpet 51 wound on the straightening roller A11, the bristles facing the top of the straightening roller A11 rotate upward.

[0071] An operating platform 36 is fixed above the base frame 1, between the guide roller A12 and the glue spraying box 2. The operating platform 36 spans above the base frame 1. The top surface of the operating platform 36 is located at the edge facing the glue spraying box 2 and the edge facing away from the glue spraying box 2, respectively, and is fixedly connected to a railing 37.

[0072] An observation window 35 is provided on the upper side wall of the glue spraying box 2 facing the operating platform 36 , and the observation window 35 is sealed and fixedly connected to glass.

[0073] A horizontal dust suction pipe 13 is fixedly connected to the side wall of the glue spray box 2 facing the carpet unwinding roller 3. The top of the horizontal dust suction pipe 13 is connected to a negative pressure air duct C14. The negative pressure air duct C14 is connected to the dust removal device B through the negative pressure fan C. The dust suction pipe opening at the bottom of the horizontal dust suction pipe 13 is a strip dust suction hole arranged parallel to the horizontal cross bar 4. The lowest position of the bottom of the horizontal dust suction pipe 13 is flush with the upper edge of the strip through hole 27 located above.

[0074] The dust suction pipe opening of the horizontal dust suction pipe 13 is tilted downward along the conveying direction of the carpet conveying device, and the lowest point of the dust suction pipe opening is flush with the upper edge of the strip-shaped through hole 27 located above.

[0075] A guide roller B28 is also provided on the base frame 1 at a position on the side of the glue spray box 2 facing the carpet winding roller 9. The base layer 52 of the base unwinding roller 7 is wound around the guide roller B28 from below and passes through the gap between the pressing roller 8 and the conveying device together with the carpet 51.

[0076] The surface of the nip roller 8 is evenly distributed with pressing ridges 29 .

[0077] A straightening roller B31 is further provided on the base frame 1 between the pressing roller 8 and the carpet winding roller 9. The carpet 51 with the base layer 52 pressed and fixed by the pressing roller 8 is reversely wound from above on the top of the straightening roller B31 and then wound on the carpet winding roller 9.

[0078] The top surface of the straightening roller B31 is flush with the top of the upper horizontal crossbar 4 to which the transmission chain 33 is fixedly connected.

[0079] Both ends of the horizontal transmission chain 33 are respectively driven by transmission wheels 32 , and the transmission wheels 32 are provided with driving force by the driving device B.

[0080] The negative pressure value in the glue spray box 2 is smaller than the negative pressure value in the dust hood 54 , and the negative pressure value in the dust hood 54 is smaller than the negative pressure value in the horizontal dust suction pipe 13 .

[0081] When this application is used, the carpet 51 wound on the carpet unwinding roller 3 is sequentially wound on the side of the straightening roller A11 corresponding to the brush roller 53 and the bottom of the guide roller A12, and then laid on the top surface of the horizontal cross bar 4 located above the carpet conveying device. Under the conveyance of the carpet conveying device, it passes under the operating platform 36 and the horizontal dust suction pipe 13 in sequence, and then enters the glue spraying box 2 and passes under the glue spraying head 5, under the ramp A20, under the horizontal plate 21 and under the heating cover 6 in sequence. Then, after leaving the glue spraying box 2, the base layer 52 of the base unwinding roller 7 is wound on the bottom of the guide roller B28 and laid on the top surface of the carpet 51. Then, they are pressed together through the bottom of the pressing roller 8 and finally wound on the carpet winding roller 9.

[0082] And according to the width of the carpet 51, the positioning plate 41 needs to be adjusted to make one side edge of the carpet 51 flush with the inner wall of the glue spray box 2 away from the positioning plate 41, and then the positioning plate 41 is adjusted by rotating the hand plate 50 to move horizontally along the guide rod A15 and the guide rod B40 until the positioning plate 41 is flush with the other side edge of the carpet 51; since the glue spray head 5 is axially slidingly connected to the guide rod A15, and the same spring 39 is connected to both sides of the glue spray head 5, when the positioning plate 41 is adjusted, all the springs 39 can be compressed or stretched equally at the same time, so that all the glue spray heads 5 can still be arranged at equal intervals along the guide rod A15.

[0083] Prior to the operation of this application, the above-mentioned operation required manual operation by an operator. The gluing of carpet 51 was performed by an operator on operating platform 36, who manually applied or sprayed the glue onto the top surface of carpet 51 corresponding to the location of horizontal suction pipe 13. At this point, heating device 19 was activated to heat the carpet 51, which was sprayed with glue. Manual gluing or spraying could be performed by directly brushing glue liquid or spraying glue powder. The negative pressure blower C was activated, transferring the air drawn in by horizontal suction pipe 13 through negative pressure duct C14 to dust removal device B for filtration.

[0084] When the present application is in operation, the drive device A, the drive device B and the drive device C are all started, the negative pressure fans A, the negative pressure fans B and the negative pressure fans C are all started, and the heating device 19 is also started. At this time, the carpet 51 of the carpet unwinding roller 3 is first wound in reverse on the top surface of the straightening roller A11. Then, when the carpet 51 wound on the straightening roller A11 passes through the brush roller 53, the brush roller 53 scrapes the surface of the carpet 51 to remove the dirt remaining on the surface of the carpet 51. The dirt separated from the carpet 51 by the brush roller 53 directly enters the dust hood 54 under the action of centrifugal force, and is transmitted to the dust removal device A for filtration through the negative pressure pipe B34; the straightened and scraped carpet 51 is horizontally transmitted through the bottom of the guide roller A12 to the top surface of the horizontal crossbar 4 located above the carpet conveying device, and is transported forward with the carpet conveying device, and passes through the operating platform 36 and the horizontal dust suction pipe 13 in turn; when the carpet 51 is straightened and scraped, the carpet 51 is horizontally transmitted to the top surface of the horizontal crossbar 4 located above the carpet conveying device through the bottom of the guide roller A12, and is transported forward with the carpet conveying device, and passes through the operating platform 36 and the horizontal dust suction pipe 13 in turn; when the carpet When the carpet 51 passes through the horizontal dust suction pipe 13, the horizontal dust suction pipe 13 again sucks in the dust and impurities on the surface of the carpet 51 and transmits them to the dust removal device B for filtration through the negative pressure pipe C14; the carpet 51 after dust removal by the horizontal dust suction pipe 13 is conveyed to the glue spraying box 2 along the carpet conveying device; the glue spraying head 5 sprays the glue powder particles downward from the glue spraying nozzle 16 to the top surface of the carpet 51 below. Due to the structure of the glue spraying nozzle 16, the glue spraying area formed by the glue powder sprayed by the glue spraying nozzle 16 is located on a plane parallel to the axial direction of the horizontal cross bar 4. Therefore, when the glue powder sprayed by the glue spraying nozzle 16 reaches the top surface of the carpet 51, the structure formed is a straight line parallel to the axial direction of the horizontal cross bar 4; and it is blocked by the ramp A20, so The glue powder remaining in the air after being sprayed out of the glue nozzle 16 and the glue powder splashing into the air after being sprayed onto the carpet 51 are blocked to prevent the glue powder from spreading throughout the glue spray box 2 as much as possible; the glue powder blocked by the ramp A20 and most of the glue powder located between the ramp A20 and the carpet 51 will be evenly scattered on the surface of the carpet 51, and a very small amount of glue powder will fall downward from both sides of the carpet 51. Most of the glue powder that falls below the carpet 51 will fall directly into the glue collecting tank 25 under the action of gravity, and a small amount of glue powder will fall onto the ramp B23 and slide down along the ramp B23 into the glue collecting tank 25; under the negative pressure condition in the glue spray box 2, the glue powder will not flow out from the strip through holes 27 on the side wall of the glue spray box 2 The carpet 51 sprayed with the rubber powder is conveyed to the bottom of the horizontal plate 21 by the carpet conveying device. Since the bottom of the horizontal plate 21 is flush with the edge of the notch of the trough 17, and the edge of the notch of the trough 17 is flush with the upper edge of the strip-shaped through hole 27 located above, the carpet 51 at the position corresponding to the horizontal plate 21 will not have any rubber powder falling onto the top surface of the carpet 51. Moreover, since the carpet 51 is close to the heating cover 6, the heat in the heating cover 6 will be conducted and dissipated to the horizontal plate 21, thereby preheating the carpet 51 under the horizontal plate 21. When the carpet 51 is conveyed to the position of the heating cover 6, the heat generated by the heating device 19 in the heating cover 6 causes the rubber powder to melt into a glue liquid, and the flexibility of the carpet 51 made of hemp fiber itself is improved after being heated.If the surface of carpet 51 becomes overly powdered, resulting in a high level of adhesive, it will drip down from carpet 51 onto ramp C24 and flow down ramp C24 into the adhesive collection tank 26. After the carpet conveyor conveys the carpet out of the glue spraying box 2, the base layer 52 of the base unwinding roller 7 is wound around the bottom of the guide roller B28 and laid on the top surface of the carpet 51. Then, the two are pressed and glued together by the bottom of the nip roller 8. Finally, the carpet 51, with the base layer 52 glued and fixed, is wound around the straightening roller B31 and the carpet take-up roller 9. The outer surface of the carpet 51 wound on the carpet take-up roller 9 now forms the base layer 52, which protects the carpet 51 during transportation.

Claims

1. The base layer pasting system of hemp fiber carpet is characterized by: The base frame includes a carpet unwinding roller, a glue spraying box, a base unwinding roller, a pressing roller and a carpet winding roller, and the base frame is provided with a carpet conveying device for conveying the carpet from the carpet unwinding roller to the carpet winding roller. The two ends of the carpet conveying device are respectively extended from the lower parts of the two opposite side walls of the glue spraying box. A glue spraying head and a heating cover are provided in the glue spraying box above the carpet conveying device and in the conveying direction of the carpet conveying device. A glue spraying nozzle is also fixed to the bottom of the glue spraying head. The glue outlet of the glue spraying nozzle is a horizontal strip structure perpendicular to the conveying direction of the carpet conveying device. The top of the glue spraying box A negative pressure air duct A is provided, which is connected to the glue collection box through a negative pressure fan A. The carpet wound by the carpet unwinding roller enters the glue spraying box through a carpet conveyor device. The glue spraying head sprays glue on the top surface of the carpet and then conveys it to a heating cover for heating. The heated carpet is conveyed out of the glue spraying box and pressed with the base layer wound by the base unwinding roller by a pressing roller, and then wound on the carpet take-up roller. The carpet take-up roller is driven by a driving device A, and the carpet conveyor device is driven by a driving device B. The conveying speed of the carpet conveyor device is equal to the winding linear speed of the carpet take-up roller, the linear speed of the carpet unwinding roller, and the unwinding linear speed of the base unwinding roller. The carpet conveyor device includes horizontal transmission chains symmetrically arranged on both sides, with multiple horizontal crossbars fixedly connected between the transmission chains, and the spacing between adjacent horizontal crossbars is equal. The side walls of the glue spray box are respectively provided with strip-shaped through-holes corresponding to the horizontal crossbars, and the horizontal crossbars and transmission chains respectively enter or exit the glue spray box through the strip-shaped through-holes. The heating cover includes a trough body with a notch facing downward and facing the carpet conveyor device. The inner wall of the trough body is fixedly provided with a heat insulation layer A, and the bottom surface of the heat insulation layer A on the top surface of the trough body is fixedly provided with a heating device. The end surface of the trough body corresponding to the side where the transmission chain is located is fixedly connected to the corresponding side wall of the glue spray box, and the edge of the notch of the trough body is flush with the upper edge of the strip through-hole located above. The position of the glue spraying head is higher than the slot of the trough body, and the glue spraying head discharges glue obliquely downward along the conveying direction of the carpet conveying device. The bottom edge of the side wall of the trough body facing the glue spraying head is provided with a horizontal plate extending toward the glue spraying head. The edge of the horizontal plate facing the glue spraying head is also fixedly connected with a ramp A, which is inclined downward along the conveying direction of the carpet conveying device. The highest edge of the ramp A extends to above the glue nozzle position of the glue spraying head. The edges of the horizontal plate and the ramp A corresponding to the side where the transmission chain is located are fixedly connected to the corresponding side walls of the glue spraying box, and the top surfaces of the ramp A and the horizontal plate are fixedly provided with an insulation layer B.

2. The base layer pasting system of the hemp fiber carpet according to claim 1, characterized in that: Ramp B and ramp C are fixedly connected in the glue spraying box at a position between the upper horizontal cross bar and the lower horizontal cross bar to which the transmission chain is fixedly connected. Ramp B is inclined upward along the conveying direction of the carpet conveying device, and ramp C is inclined downward along the conveying direction of the carpet conveying device. The top edge of ramp B is fixedly connected to the top edge of ramp C, and the connection between ramp B and ramp C is located directly below the connection between the trough body and the horizontal plate. The edges of ramp B and ramp C corresponding to the side where the transmission chain is located are fixedly connected to the corresponding side walls of the glue spraying box. The bottom edge of ramp B extends to below the position of ramp A, and the bottom edge of ramp C extends to extend out of the glue spraying box. A glue collecting trough is placed at the bottom of the glue spraying box, below ramp A. The glue collecting trough corresponds to The edge of the side where the transmission chain is located is fitted with the corresponding side wall of the glue spray box, the notch of the glue collecting trough is lower than the lowest point of the horizontal cross bar, and the lower edge of the strip through hole located below in the side wall of the glue spray box facing the carpet unwinding roller passes downward through the side wall; the size of the glue collecting trough along the carpet conveying direction is greater than the distance between the ramp B and the side wall of the glue spray box facing the carpet unwinding roller; the lower edge of the strip through hole located above in the side wall of the glue spray box facing the carpet winding roller extends downward to fit with the bottom of the ramp C, and the ramp C is connected to the glue collecting trough fixed on the outside of the glue spray box, and the bottom of the glue collecting trough is flush with the upper edge of the strip through hole located below. The notch height of the glue collecting trough is lower than or equal to the height of the connection between the ramp B and the ramp C, and the glue collecting trough is fixedly connected to the base frame corresponding to the side wall on the side where the transmission chain is located.

3. The base layer pasting system for hemp fiber carpet according to claim 1, characterized in that: There are multiple glue spraying heads, which are evenly spaced along the guide rod A fixedly connected horizontally in the glue spraying box; the glue spraying box is also provided with a positioning vertical plate which moves back and forth along the axial direction of the guide rod A, and the top and both sides of the positioning vertical plate are in contact with the inner wall of the glue spraying box, and the positioning vertical plate is provided with a matching rod hole A corresponding to the guide rod A, and the bottom edge of the positioning vertical plate is located between the top and bottom surfaces of the carpet on the carpet conveying device, and corresponding to the slope plate A, the horizontal plate and the trough body, respectively, there are matching inclined holes, notches A and notches B, which are connected to each other, and the glue spraying head and the negative pressure air duct A are both located on the same side of the positioning vertical plate, and are respectively sleeved on the guide rod A and on both sides of the glue spraying head. It has the same spring, the end of the spring is fixedly connected to the corresponding glue spray head or the corresponding inner wall of the glue spray box or the corresponding positioning vertical plate, the end face of the positioning vertical plate on the side facing away from the glue spray head is connected to the end of the adjusting bolt through the provided connecting head, the adjusting bolt is axially fixed to the connecting head and is rotatably connected to the connecting head around the axis of the adjusting bolt, the adjusting bolt is threadedly connected to the side wall of the glue spray box located on the side of the positioning vertical plate facing away from the glue spray head, and a hand plate is fixed on the end of the adjusting bolt extending out of the glue spray box; a plurality of axial strip grooves are evenly distributed on the side wall of the guide rod A, the glue spray head is provided with matching positioning protrusions A corresponding to the strip grooves, and the through-rod hole A is provided with matching positioning protrusions B corresponding to the strip grooves.

4. The base layer pasting system for hemp fiber carpet according to claim 1, characterized in that: On the base frame, above the carpet unwinding roller, a straightening roller A and a guide roller A are sequentially provided. Both the straightening roller A and the guide roller A are parallel to the carpet unwinding roller. The carpet on the carpet unwinding roller is sequentially wound around the top of the straightening roller A in reverse from above, and then wound around the bottom of the guide roller A from below. The bottom surface of the carpet wound around the bottom of the guide roller A is flush with the top surface of the upper horizontal crossbar to which the transmission chain is fixed.

5. The base layer pasting system for hemp fiber carpet according to claim 4, characterized in that: A brush roller is also provided on the base frame above the straightening roller A. The brush roller is parallel to the straightening roller A, and the brush roller is provided with driving force through the driving device C. A dust hood is provided on the base frame corresponding to the brush roller. The brush roller and the straightening roller A are both located in the dust hood. A negative pressure air duct B is connected to the top of the dust hood, and the negative pressure air duct B is connected to the dust removal device A through the negative pressure fan B.

6. The base layer pasting system for hemp fiber carpet according to claim 4, characterized in that: An operating platform is fixed above the base frame, between the guide roller A and the glue spray box. The operating platform spans the top of the base frame, and the top surface of the operating platform is located at the edge facing the glue spray box and the edge facing away from the glue spray box, respectively, and is fixedly connected to a railing; an observation window is provided above the side wall of the glue spray box facing the operating platform, and the observation window is sealed and fixedly connected with glass.

7. The base layer pasting system for hemp fiber carpet according to claim 1, characterized in that: A horizontal dust suction pipe is fixedly connected to the side wall of the glue spray box facing the carpet unwinding roller. The top of the horizontal dust suction pipe is connected to a negative pressure air duct C. The negative pressure air duct C is connected to the dust removal device B through the negative pressure fan C. The dust suction pipe opening at the bottom of the horizontal dust suction pipe is a strip dust suction hole arranged parallel to the horizontal cross bar. The lowest position of the bottom of the horizontal dust suction pipe is flush with the upper edge of the strip through hole located above.

8. The base layer pasting system for hemp fiber carpet according to claim 1, characterized in that: A straightening roller B is provided on the base frame between the pressing roller and the carpet winding roller. The carpet with the base layer pressed and fixed by the pressing roller is reversely wound from above on the top of the straightening roller B and then wound on the carpet winding roller.

Images