A flexible conveying line for sanitary paper

Abstract

This invention relates to the field of toilet paper production equipment technology, specifically a flexible toilet paper conveyor line, including an inlet conveyor belt, an inlet oscillating conveyor belt, a double-layer conveyor belt, an outlet oscillating conveyor belt, and an outlet conveyor belt. The inlet and inlet oscillating conveyor belts are conveying structures that can switch between three and four channels, while the outlet oscillating conveyor belts and outlet conveyor belts are four-channel conveying structures. The upper layer of the double-layer conveyor belt is a three-channel to four-channel conveying layer, and the lower layer is a four-channel conveying layer. The output end of the inlet oscillating conveyor belt can swing up and down to selectively connect to either the upper or lower input end of the double-layer conveyor belt, and the input end of the outlet oscillating conveyor belt can swing up and down to selectively connect to either the upper or lower output end of the double-layer conveyor belt. This flexible toilet paper conveyor line achieves switching between three and four channels without disassembling, handling, or reinstalling the conveyor belt, significantly shortening the switching time and reducing labor intensity.

Description

Technical Field

[0001] This invention relates to the field of toilet paper production equipment technology, specifically to a flexible toilet paper conveyor line. Background Technology

[0002] Toilet paper, as one of the most consumed paper products in daily life, involves multiple conveying processes during its production and packaging. In actual production, due to differences in packaging specifications and material receiving methods among different tissue manufacturers, the material conveying system typically presents various channel layouts, such as three-channel or four-channel conveying. However, the feeding methods of existing toilet paper processing equipment are usually fixed and cannot be directly adapted to materials with different numbers of channels.

[0003] Currently, the switching between different material inlet channels is generally achieved using a moving conveyor belt. Normally, when the material inlet is four channels, the material enters the equipment via the four-channel conveyor belt. When the material inlet is three channels, the four-channel conveyor belt needs to be removed and replaced with a conveyor belt that can switch from three to four channels to meet the equipment's four-channel feeding requirements. Each time, manual handling, disassembly, and reinstallation of the conveyor belt is required, which is time-consuming and labor-intensive, not only physically demanding but also time-consuming, severely impacting the company's continuous production efficiency and making it difficult to adapt to the flexible production needs of various types and specifications of tissue paper.

[0004] Therefore, there is an urgent need for a flexible toilet paper conveyor line that can quickly and automatically switch between three and four channels to solve the problems of cumbersome and inefficient material switching in the existing technology. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a flexible toilet paper conveyor line. This flexible conveyor line achieves switching between three-channel and four-channel operation without disassembling, handling, or reinstalling the conveyor belts by installing baffles that slide along the length of the gantry on the incoming and outgoing oscillating conveyor belts, and by using oscillating drive elements on both the incoming and outgoing oscillating conveyor belts to drive the conveyor belts to oscillate up and down. The switching operation is automatically completed by the drive elements, significantly shortening the switching time and reducing labor intensity compared to the traditional method of manually disassembling and assembling the conveyor belts.

[0006] The technical solution of the present invention is as follows:

[0007] A flexible toilet paper conveyor line includes an incoming conveyor belt, an incoming oscillating conveyor belt, a double-layer conveyor belt, an outgoing oscillating conveyor belt, and an outgoing conveyor belt connected in sequence. The incoming conveyor belt and the incoming oscillating conveyor belt are conveying structures that can switch between three and four channels, while the outgoing oscillating conveyor belt and the outgoing conveyor belt are four-channel conveying structures. The double-layer conveyor belt has two conveying layers, with the upper layer being a three-channel to four-channel conveying layer and the lower layer being a four-channel conveying layer. The output end of the incoming oscillating conveyor belt can swing up and down to selectively connect to either the upper or lower input end of the double-layer conveyor belt, and the input end of the outgoing oscillating conveyor belt can swing up and down to selectively connect to either the upper or lower output end of the double-layer conveyor belt. The output end of the outgoing oscillating conveyor belt is connected to the input end of the outgoing conveyor belt.

[0008] The incoming material conveyor belt includes an incoming material conveyor belt body, an incoming material conveyor belt gantry, incoming material conveyor belt baffles, and an incoming material conveyor belt support. The incoming material conveyor belt body is fixed to the incoming material conveyor belt support. Multiple sets of incoming material conveyor belt gantry are arranged at intervals along the conveying direction of the incoming material conveyor belt body. Each incoming material conveyor belt gantry has an elongated oval mounting hole at its top. The incoming material conveyor belt baffles are slidably and adjustablely fixedly installed through the elongated oval mounting holes along the length direction of the incoming material conveyor belt gantry. By adjusting the lateral position of the incoming material conveyor belt baffles, a three-channel conveying layout or a four-channel conveying layout is formed on the incoming material conveyor belt body.

[0009] The material inlet swing conveyor belt includes a material inlet swing conveyor belt support, a material inlet swing conveyor belt body, a material inlet swing conveyor belt body swing drive element, a material inlet swing conveyor belt gantry, and a material inlet swing conveyor belt baffle. One end of the material inlet swing conveyor belt body is hinged to one side of the material inlet swing conveyor belt support to form a swing fulcrum. The other end of the material inlet swing conveyor belt body is connected to the other side of the material inlet swing conveyor belt support through the material inlet swing conveyor belt body swing drive element, which drives the other end of the material inlet swing conveyor belt body to swing up and down. Multiple sets of material inlet swing conveyor belt gantry are arranged at intervals along the conveying direction of the material inlet swing conveyor belt body. Each material inlet swing conveyor belt gantry has an elongated oval mounting hole at the top. The material inlet swing conveyor belt baffle is fixedly installed by sliding and adjusting along the length direction of the material inlet swing conveyor belt gantry through the elongated oval mounting hole. By adjusting the lateral position of the material inlet swing conveyor belt baffle, a three-channel conveying layout or a four-channel conveying layout is formed on the material inlet swing conveyor belt body.

[0010] The main swing drive element of the material inlet swing conveyor belt is any one of an electric telescopic cylinder, a pneumatic telescopic cylinder, or a hydraulic telescopic cylinder.

[0011] The double-layer conveyor belt consists of a double-layer conveyor belt support, a three-channel to four-channel conveyor layer, and a four-channel conveyor layer. The four-channel conveyor layer is fixedly installed on the double-layer conveyor belt support, and the three-channel to four-channel conveyor layer is fixedly installed on the four-channel conveyor layer through a connecting plate.

[0012] The four-channel conveyor layer includes a lower conveyor belt body, a lower conveyor belt gantry, and lower conveyor belt baffles. The lower conveyor belt body is fixedly installed on the double-layer conveyor belt support. Multiple sets of lower conveyor belt gantry are arranged at intervals along the conveying direction of the lower conveyor belt body. Each lower conveyor belt gantry has an elongated oval mounting hole at its top. The lower conveyor belt baffles are fixedly installed by sliding along the length of the lower conveyor belt gantry through the elongated oval mounting hole. By adjusting the lateral position of the lower conveyor belt baffles, a four-channel conveying layout is formed on the lower conveyor belt body.

[0013] The three-channel to four-channel conveyor layer includes an upper conveyor belt body, an upper conveyor belt gantry, upper conveyor belt baffles, upper conveyor belt single-channel baffle groups, and a horizontal swing drive element for the baffle groups. The upper conveyor belt body is fixedly connected to the lower conveyor belt body through a connecting plate. Multiple sets of upper conveyor belt gantry are arranged at intervals along the conveying direction of the upper conveyor belt body. The upper conveyor belt baffles, upper conveyor belt single-channel baffle groups, upper conveyor belt baffles, upper conveyor belt single-channel baffle groups, and upper conveyor belt baffles are sequentially installed on the upper conveyor belt gantry and form a three-channel conveying layout, a three-to-two conveying layout, a two-channel conveying layout, a two-to-four conveying layout, and a four-channel conveying layout along the body of the upper conveyor belt.

[0014] The top of the upper conveyor belt gantry for installing the upper conveyor belt baffle has an elongated oval mounting hole. The upper conveyor belt baffle is fixedly installed by sliding along the length of the upper conveyor belt gantry through the elongated oval mounting hole. By adjusting the lateral position of the upper conveyor belt baffle, three-channel conveying layout, two-channel conveying layout and four-channel conveying layout can be formed on the upper conveyor belt body by intervals.

[0015] The upper conveyor belt single-channel baffle assembly is a baffle combination with a single channel connected as a whole;

[0016] The three-to-two conveyor layout includes two upper conveyor belt single-channel baffle groups. One end of each upper conveyor belt single-channel baffle group is hinged to the upper conveyor belt gantry and corresponds to the entrance channel of the two-channel conveyor layout. The other end of each upper conveyor belt single-channel baffle group is mounted on the upper conveyor belt gantry through a baffle group horizontal swing drive element. The other end of the two upper conveyor belt single-channel baffle groups is driven to switch between the three channels of the three-channel conveyor layout through the baffle group horizontal swing drive element.

[0017] The two-to-four conveyor layout includes two upper conveyor belt single-channel baffle assemblies. One end of each upper conveyor belt single-channel baffle assembly is hinged to the upper conveyor belt gantry and corresponds to the outlet channel of the two-channel conveyor layout. The other end of each upper conveyor belt single-channel baffle assembly is mounted on the upper conveyor belt gantry via a baffle assembly horizontal swing drive element. The horizontal swing drive element drives the other end of the two upper conveyor belt single-channel baffle assemblies to switch between the four channels of the four-channel conveyor layout.

[0018] The horizontal swing drive element of the baffle assembly is any one of an electric telescopic cylinder, a pneumatic telescopic cylinder, or a hydraulic telescopic cylinder.

[0019] The discharge oscillating conveyor belt includes a discharge oscillating conveyor belt support, a discharge oscillating conveyor belt body, a discharge oscillating conveyor belt body oscillation drive element, a discharge oscillating conveyor belt gantry, and a discharge oscillating conveyor belt baffle. One end of the discharge oscillating conveyor belt body is hinged to one side of the discharge oscillating conveyor belt support to form an oscillation fulcrum. The other end of the discharge oscillating conveyor belt body is connected to the other side of the discharge oscillating conveyor belt support through the discharge oscillating conveyor belt body oscillation drive element, which drives the other end of the discharge oscillating conveyor belt body to oscillate up and down. Multiple sets of discharge oscillating conveyor belt gantry are arranged at intervals along the conveying direction of the discharge oscillating conveyor belt body. Each discharge oscillating conveyor belt gantry has an elongated oval mounting hole at its top. The discharge oscillating conveyor belt baffle is slidably and adjustablely fixedly installed through the elongated oval mounting hole along the length direction of the discharge oscillating conveyor belt gantry. By adjusting the lateral position of the discharge oscillating conveyor belt baffle, a four-channel conveying layout is formed on the discharge oscillating conveyor belt body.

[0020] The main swing drive element of the discharge up-and-down swing conveyor belt is any one of an electric telescopic cylinder, a pneumatic telescopic cylinder, or a hydraulic telescopic cylinder.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. This invention discloses a flexible toilet paper conveyor line. This flexible toilet paper conveyor line achieves switching between three-channel and four-channel operation without disassembling, handling, or reinstalling the conveyor belts by installing baffles that can slide along the length of the gantry on the incoming and outgoing oscillating conveyor belts, and by installing oscillating drive elements on the incoming and outgoing oscillating conveyor belts to drive the conveyor belt body to oscillate up and down. The switching operation is automatically completed by the drive elements, significantly shortening the switching time and reducing labor intensity compared to the traditional method of manually disassembling and assembling the conveyor belts.

[0023] 2. The present invention discloses a flexible toilet paper conveyor line, which can adapt to multiple specifications of incoming materials on a single line to meet the needs of flexible production. Both the incoming material conveyor belt and the incoming material swing conveyor belt can be switched between a three-channel and a four-channel layout. With the upper three-channel to four-channel conveyor layer and the lower four-channel conveyor layer of the double-layer conveyor belt, as well as the function of selectively connecting the upper and lower swing conveyor belt output end and the upper and lower swing conveyor belt input end, the entire conveyor line can adapt to three-channel or four-channel incoming materials and uniformly convert them into four-channel output materials, meeting the equipment's fixed requirement for four-channel feeding and adapting to the production of multiple varieties and specifications of toilet paper. Attached Figure Description

[0024] The solutions and advantages of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention.

[0025] In the attached diagram:

[0026] Figure 1 This is a front view of the overall structure of a flexible toilet paper conveyor line according to an embodiment of the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram of the infeed conveyor belt of a flexible toilet paper conveyor line according to an embodiment of the present invention;

[0028] Figure 3 This is a front view of the material inlet swing conveyor belt of a flexible toilet paper conveyor line according to an embodiment of the present invention.

[0029] Figure 4 This is a three-dimensional structural diagram of an infeed flexible conveyor belt for toilet paper according to an embodiment of the present invention.

[0030] Figure 5 This is a front view of a double-layer conveyor belt in a flexible toilet paper conveying line according to an embodiment of the present invention;

[0031] Figure 6 This is a three-dimensional structural diagram of a double-layer conveyor belt in a flexible toilet paper conveying line according to an embodiment of the present invention;

[0032] Figure 7 This is a front view of the discharge oscillating conveyor belt of a flexible toilet paper conveyor line according to an embodiment of the present invention.

[0033] Figure 8 This is a three-dimensional structural diagram of the discharge oscillating conveyor belt of a flexible toilet paper conveyor line according to an embodiment of the present invention.

[0034] The components represented by the various reference numerals in the diagram are:

[0035] This invention comprises: 100, an incoming material conveyor belt; 110, the main body of the incoming material conveyor belt; 120, a gantry frame for the incoming material conveyor belt; 130, a baffle for the incoming material conveyor belt; 140, a support for the incoming material conveyor belt; 200, an incoming material oscillating conveyor belt; 210, a support for the incoming material oscillating conveyor belt; 220, the main body of the incoming material oscillating conveyor belt; 230, an oscillating drive element for the main body of the incoming material oscillating conveyor belt; 240, a gantry frame for the incoming material oscillating conveyor belt; 250, a baffle for the incoming material oscillating conveyor belt; 300, a double-layer conveyor belt; 310, a double-layer conveyor belt support; 320, the main body of the lower layer conveyor belt; 330, the lower layer conveyor belt... 340. Lower conveyor belt gantry; 350. Connecting plate; 360. Upper conveyor belt body; 370. Upper conveyor belt gantry; 380. Upper conveyor belt baffle; 390. Upper conveyor belt single-channel baffle group; 391. Baffle group horizontal swing drive element; 400. Discharge vertical swing conveyor belt; 410. Discharge vertical swing conveyor belt support; 420. Discharge vertical swing conveyor belt body; 430. Discharge vertical swing conveyor belt body swing drive element; 440. Discharge vertical swing conveyor belt gantry; 450. Discharge vertical swing conveyor belt baffle; 500. Discharge conveyor belt. Detailed Implementation

[0036] like Figure 1 As shown, the flexible toilet paper conveyor line is adapted to the automated conveying needs of three-channel and four-channel toilet paper production for two different material specifications. It can realize the seamless switching between the two material receiving modes and continuous and stable conveying, solving the industry pain points of traditional conveying equipment, such as the need for manual conveyor belt replacement, time-consuming and labor-intensive switching, and low production efficiency. The entire system is assembled sequentially along the material conveying direction, and the core includes five main structures: the material receiving conveyor belt 100, the material receiving vertical swing conveyor belt 200, the double-layer conveyor belt 300, the material discharging vertical swing conveyor belt 400, and the material discharging conveyor belt 500. All structures are coaxially connected and the conveying path is continuous, forming a complete toilet paper conveying chain.

[0037] Among them, the incoming material conveyor belt 100 and the incoming material oscillating conveyor belt 200 are switchable channel structures, which can flexibly switch between three-channel and four-channel conveying layouts according to the specifications of the incoming material; the outgoing material oscillating conveyor belt 400 and the outgoing material conveyor belt 500 are fixed four-channel conveying structures, which can be uniformly connected to the back-end packaging equipment to ensure uniform outgoing material specifications; the double-layer conveyor belt 300 is the core lane-changing adaptation structure, with two independent conveying layers, the upper layer being a three-channel to four-channel conveying layer responsible for the lane-changing adaptation conveying of three-channel toilet paper, and the lower layer being a fixed four-channel conveying layer responsible for the direct conveying of four-channel toilet paper.

[0038] Meanwhile, the output end of the material inlet swing conveyor belt 200 can swing up and down, and the input end of the material outlet swing conveyor belt 400 can swing up and down. By switching the posture of the swing structures at both ends, one of the upper and lower conveying channels of the double-layer conveyor belt 300 can be connected. With the automatic lane changing function of the upper layer of the double-layer conveyor belt 300, the flexible adaptation of the two material specifications can be completed without manual disassembly and assembly of the equipment. Preferably, the entire process can be automated and precise controlled by a PLC control system in conjunction with photoelectric sensors.

[0039] like Figure 2 As shown, the incoming material conveyor belt 100 specifically includes an incoming material conveyor belt body 110, an incoming material conveyor belt gantry 120, an incoming material conveyor belt baffle 130, and an incoming material conveyor belt support 140. The incoming material conveyor belt body 110 is fixedly assembled on the top of the incoming material conveyor belt support 140, and the support provides overall support and fixation to ensure the stability of the conveying process. Multiple sets of incoming material conveyor belt gantry frames 120 are arranged at equal intervals along the material conveying direction of the incoming material conveyor belt body 110. The gantry frames span the width direction of the conveyor belt body, providing an installation carrier for baffle adjustment. Each set of incoming material conveyor belt gantry frames 120 has an elongated oval mounting hole on its top, and the incoming material conveyor belt baffle 130 passes through the elongated oval mounting hole and can be installed along the length direction of the incoming material conveyor belt gantry frame 120. Lateral sliding is achieved, and the sliding can be adjusted and fixed by bolt locking. By adjusting the lateral spacing and installation position of multiple sets of feed conveyor belt baffles 130, the operator can flexibly divide the feed conveyor belt body 110 into a three-channel or four-channel conveying layout to accommodate two sizes of toilet paper. Through the sliding adjustable baffle design, the conveying channel specifications can be quickly switched by simply adjusting the baffle position without disassembling the entire conveyor belt equipment. This achieves flexible adaptation of the front feed channel. The synchronous adjustment of multiple gantry frames ensures uniform spacing and regular conveying of the entire conveyor belt, avoiding toilet paper conveying deviation and jamming problems. At the same time, it greatly shortens the preparation time for changing the feed specifications, laying the foundation for subsequent automated conveying.

[0040] like Figure 3 and Figure 4As shown, the material inlet swing conveyor belt 200 includes a material inlet swing conveyor belt support 210, a material inlet swing conveyor belt body 220, a material inlet swing conveyor belt body swing drive element 230, a material inlet swing conveyor belt gantry 240, and a material inlet swing conveyor belt baffle 250. One end of the material inlet swing conveyor belt body 220 is hinged to one side of the material inlet swing conveyor belt support 210 to form a fixed swing fulcrum. The conveyor belt body can swing up and down around the fulcrum. The free end of the conveyor belt body 220 is connected to the other side of the support 210 through the material inlet swing conveyor belt body swing drive element 230. This drive element can be any one of an electric telescopic cylinder, a pneumatic telescopic cylinder, or a hydraulic telescopic cylinder. In this embodiment, an electric telescopic cylinder is preferred because it has higher control precision and faster response speed. The oscillating conveyor belt body 220 is equipped with multiple sets of material inlet oscillating conveyor belt gantry frames 240 arranged at intervals along the conveying direction. The top of the gantry frame also has an elongated oval mounting hole. The material inlet oscillating conveyor belt baffle 250 is laterally slidable and adjustable through the elongated oval mounting hole. By adjusting the position of the baffle 250, a three-channel or four-channel conveying layout can be formed on the conveyor belt body 220, which is consistent with the channel specifications of the front-end material inlet conveyor belt 100. This structure realizes the automatic up-and-down oscillation switching of the conveyor belt body through the hinged fulcrum and telescopic drive element, eliminating the need for manual handling and disassembly of the conveyor belt, completely solving the problem of time-consuming and labor-intensive switching modes of traditional equipment. At the same time, the switchable channel layout ensures precise matching with the front-end material specifications, realizes smooth material transfer, and eliminates material jamming and deviation, adapting to the switching needs of different material inlet conditions.

[0041] like Figure 5 and Figure 6 As shown, the double-layer conveyor belt 300 is the core adaptable lane-changing structure of this conveyor line, consisting of a double-layer conveyor belt support 310, a three-channel to four-channel conveyor layer (upper layer), and a four-channel conveyor layer (lower layer). The four-channel conveyor layer is fixedly installed on the double-layer conveyor belt support 310 as the lower fixed conveyor channel. The three-channel to four-channel conveyor layer is fixedly erected above the four-channel conveyor layer through a connecting plate 350. The upper and lower layers operate independently and do not interfere with each other, saving equipment floor space and realizing synchronous standby conveying of the two layers.

[0042] The lower four-channel conveyor layer specifically includes a lower conveyor belt body 320, a lower conveyor belt gantry 330, and a lower conveyor belt baffle 340. The lower conveyor belt body 320 is fixed to the double-layer conveyor belt support 310. Multiple sets of lower conveyor belt gantry 330 are arranged at intervals along the conveying direction. The top of the gantry is provided with an elongated oval mounting hole. The lower conveyor belt baffle 340 can be adjusted and fixed laterally, precisely dividing the standard four-channel conveying layout for direct four-channel toilet paper conveying.

[0043] The upper three-channel to four-channel conveyor layer is an intelligent lane-changing structure, including an upper conveyor belt body 360, an upper conveyor belt gantry 370, an upper conveyor belt baffle 380, an upper conveyor belt single-channel baffle group 390, and a baffle group horizontal swing drive element 391. The upper conveyor belt body 360 is fixedly connected to the lower conveyor belt body 320 through a connecting plate 350 to achieve integrated assembly of the upper and lower layers. Multiple sets of upper conveyor belt gantry 370 are arranged sequentially along the conveying direction, and the upper conveyor belt baffle 380 and the upper conveyor belt single-channel baffle group 390 are alternately assembled to form a gradual channel structure on the upper conveyor belt body 360, which sequentially forms a three-channel conveying layout, a three-to-two conveying layout, a two-channel conveying layout, a two-to-four conveying layout, and a four-channel conveying layout.

[0044] The upper conveyor belt baffle 380 can be slidably adjusted through the elongated mounting holes of the gantry frame to achieve the switching of basic channel specifications; the upper conveyor belt single-channel baffle group 390 is an integral single-channel baffle assembly with independent material guiding function; both the three-to-two conveyor layout and the two-to-four conveyor layout are equipped with two sets of upper conveyor belt single-channel baffle groups 390. One end of the baffle group is hinged to the gantry frame 370, and the other end is connected and fixed through the baffle group horizontal swing drive element 391. This drive element can be an electric, pneumatic, or hydraulic telescopic cylinder. In this embodiment, an electric telescopic cylinder is preferred, which can accurately drive the baffle group to swing horizontally to achieve the channel... Adaptive switching; the double-layer independent conveyor structure enables zoned conveying of three-channel and four-channel incoming materials without interference or impact, significantly improving equipment adaptability and conveying stability. The lower four-channel straight-through structure ensures efficient conveying of conventional four-channel incoming materials without lane-changing losses; the upper gradual lane-changing structure can automatically complete the adaptive conversion from "three-channel → two-channel → four-channel", converting non-standard three-channel incoming materials into four-channel specifications compatible with the back-end packaging equipment without manual intervention. The overall structure has high integration and a small footprint, replacing traditional multiple separate switching conveyor belts and significantly reducing equipment investment and site costs.

[0045] like Figure 7 and Figure 8As shown, the discharge oscillating conveyor belt 400 includes a discharge oscillating conveyor belt support 410, a discharge oscillating conveyor belt body 420, a discharge oscillating conveyor belt body oscillating drive element 430, a discharge oscillating conveyor belt gantry 440, and a discharge oscillating conveyor belt baffle 450. One end of the discharge swing conveyor belt body 420 is hinged to the support 410 to form a swing fulcrum. The free end is connected to the support 410 through the swing drive element 430. The drive element can be an electric, pneumatic, or hydraulic telescopic cylinder, which can drive the conveyor belt body 420 to swing up and down, precisely docking with the upper or lower output end of the double-layer conveyor belt 300. Multiple sets of gantry frames 440 are arranged along the conveying direction of the conveyor belt body 420, with oblong mounting holes on the top. The discharge swing conveyor belt baffle 450 can slide, adjust, and fix, so that the conveyor belt body 420 always maintains a four-channel conveying layout, ensuring uniform discharge specifications. Through automated up-and-down swing switching, it can precisely dock with the discharge ports of the upper and lower layers of the double-layer conveyor belt, achieving seamless switching between the two conveying paths. The fixed four-channel conveying layout can unify the output specifications, perfectly adapting to the fixed feeding requirements of the downstream packaging equipment, avoiding problems such as equipment inability to feed and production failures due to differences in incoming material specifications, and ensuring continuous operation of the production line.

[0046] The discharge conveyor belt 500 is a fixed four-channel conveyor structure. Its input end is precisely connected to the output end of the discharge oscillating conveyor belt 400. The overall channel specifications are consistent with those of the discharge oscillating conveyor belt 400 and the lower conveyor layer of the double-layer conveyor belt 300. It is the final discharge conveyor structure of the production line and directly connects to the downstream toilet paper packaging equipment. As the end conveyor structure, it can stably receive the four-channel toilet paper material after switching and smoothly convey it to the packaging equipment, ensuring that the discharge of the entire production line is regular and the conveying speed is uniform, providing a stable material supply for the subsequent packaging process.

[0047] This flexible toilet paper conveyor line employs a control mode combining manual adjustment and automatic drive. The channel layout switching and position adjustment of each conveyor belt baffle are all manually fine-tuned. Automation is achieved only through the PLC control system and photoelectric sensors supporting various telescopic drive components. The photoelectric sensors detect the channel specifications of the incoming toilet paper in real time, transmitting the detection signal to the PLC. The PLC then controls the precise movement of each swing and horizontal drive component through a preset logic program, completing the conveyor path switching and channel change. The overall operation mode is clearly defined and stable, with two specific workflows: a four-channel inlet conveyor mode and a three-channel inlet conveyor mode.

[0048] (a) Four-channel material conveying mode

[0049] When the incoming material is standard four-channel toilet paper, the staff manually adjusts the lateral position of the incoming conveyor belt baffle 130 of the incoming conveyor belt 100 and the incoming vertical oscillating conveyor belt baffle 250 of the incoming vertical oscillating conveyor belt 200 according to the incoming material specifications. The two front-end conveyor belts are manually switched and adjusted to a four-channel conveying layout to ensure that the channel spacing is uniform and regular. After the adjustment is completed, the photoelectric sensor detects the incoming material specification signal and transmits it to the PLC control system. The PLC issues a control command to control the synchronous extension and retraction of the main body oscillating drive element 230 of the incoming vertical oscillating conveyor belt and the main body oscillating drive element 430 of the outgoing vertical oscillating conveyor belt. This drives the main body 220 of the incoming vertical oscillating conveyor belt and the main body 420 of the outgoing vertical oscillating conveyor belt to swing downward synchronously, so that the two oscillating conveyor belts accurately connect with the lower four-channel conveying layer of the double-layer conveyor belt 300, completing the automated docking and switching of the conveying path.

[0050] At this point, the conveying path is fully open, and the four-channel toilet paper material is conveyed along a fixed path: incoming conveyor belt 100 → incoming oscillating conveyor belt 200 → double-layer conveyor belt 300 (lower four-channel conveyor layer) → outgoing oscillating conveyor belt 400 → outgoing conveyor belt 500, finally being smoothly conveyed to the downstream packaging equipment. In this mode, the material is conveyed directly throughout the entire process without any channel changing, resulting in high conveying efficiency and strong stability.

[0051] (ii) Three-channel material conveying mode

[0052] When the incoming material is non-standard three-channel toilet paper, the staff manually adjusts the baffle positions of the incoming material conveyor belt 100 and the incoming material swing conveyor belt 200 in advance, and manually switches the front-end conveyor belt to the conveying layout adapted to the three-channel incoming material, completing the front-end channel debugging; then the photoelectric sensor detects the incoming material signal and feeds it back to the PLC. The PLC starts the three-channel adapted conveying program, and individually controls the two sets of swing drive elements to move in opposite directions, driving the main body of the incoming material swing conveyor belt 220 and the main body of the outgoing material swing conveyor belt 420 to swing upward synchronously, accurately connecting with the upper three-channel to four-channel conveying layer of the double-layer conveyor belt 300, realizing the automatic switching of the conveying path.

[0053] After the three-channel toilet paper material enters the upper conveyor belt body 360, it enters the three-to-two conveyor layout area through the three-channel conveyor layout area that has been manually adjusted in advance. At this time, the PLC precisely controls the horizontal swing drive element 391 of the corresponding baffle group to automatically extend and retract horizontally, driving the two sets of single-channel baffle groups 390 of the upper conveyor belt to swing precisely, merging the three independent material channels into a two-channel conveyor layout, automatically completing the "three-to-two" channel conversion without manual intervention of the baffle action.

[0054] The converted material from the second channel continues to be conveyed forward, passing through the second channel storage buffer area to the two-to-four conveyor layout area. Here, the PLC-controlled horizontal swing drive element 391 precisely actuates the baffle group, driving the corresponding baffle group to automatically swing and divert the material, accurately separating the second-channel material into standard four-channel material, automatically completing the "two-to-four" adaptive lane change. Finally, the converted four-channel toilet paper is stably conveyed to the rear packaging equipment via the discharge vertical swing conveyor belt 400 and the discharge conveyor belt 500, perfectly adapting to the equipment's fixed feed specifications. It should be noted that the layout specifications of the upper conveyor belt's basic channels are all manually adjusted and fixed by staff in advance; only the swinging motion of the baffle group for lane change adaptation is automatically achieved by the PLC-controlled drive element.

[0055] This embodiment completely abandons the traditional manual disassembly and replacement of conveyor belts. Through a combination of double-layer conveyor belts for layered transport, vertically swinging conveyor belt path switching, and automated baffle rerouting, it achieves fully automated and flexible switching between three and four material channels. This significantly reduces labor costs, shortens equipment changeover waiting time, and substantially improves the overall production line efficiency. The equipment adopts a combined control mode of "manual adjustment + automatic drive." The basic layout of the conveyor belt channels and the baffle spacing specifications are precisely adjusted and fixed manually to ensure channel adaptation accuracy. Only the swinging and telescopic movements of various drive components are achieved using photoelectric sensors. With precise sensor detection and PLC logic control, channel switching and baffle reversal actions are accurately controlled, effectively avoiding problems such as material misalignment, misdirection, jamming, and deviation, while balancing equipment adjustment flexibility and production stability. The dual-layer independent conveying structure ensures that the two material conveying paths do not interfere with each other, resulting in a high degree of equipment integration. Compared with traditional split-type switching equipment, it effectively saves workshop production space and allows for a more organized equipment layout. All baffles adopt an oblong hole sliding adjustable structure to adapt to the slight dimensional differences of different sizes of toilet paper, making the equipment more versatile and adjustable, and meeting the production needs of multiple types of toilet paper packaging.

Claims

1. A flexible toilet paper conveying line, characterized in that, It includes a material inlet conveyor belt (100), a material inlet oscillating conveyor belt (200), a double-layer conveyor belt (300), a material outlet oscillating conveyor belt (400), and a material outlet conveyor belt (500) connected sequentially; the material inlet conveyor belt (100) and the material inlet oscillating conveyor belt (200) are conveying structures that can switch between three and four channels, while the material outlet oscillating conveyor belt (400) and the material outlet conveyor belt (500) are four-channel conveying structures; the double-layer conveyor belt (300) has The upper and lower conveyor layers are three-channel to four-channel conveyor layers and four-channel conveyor layers respectively. The output end of the material inlet swing conveyor belt (200) can swing up and down to connect to the upper or lower input end of the double-layer conveyor belt (300). The input end of the material outlet swing conveyor belt (400) can swing up and down to connect to the upper or lower output end of the double-layer conveyor belt (300). The output end of the material outlet swing conveyor belt (400) is connected to the input end of the material outlet conveyor belt (500).

2. The flexible toilet paper conveying line according to claim 1, characterized in that, The incoming material conveyor belt (100) includes an incoming material conveyor belt body (110), an incoming material conveyor belt gantry (120), an incoming material conveyor belt baffle (130), and an incoming material conveyor belt support (140); the incoming material conveyor belt body (110) is fixed to the incoming material conveyor belt support (140); multiple sets of incoming material conveyor belt gantry (120) are arranged at intervals along the conveying direction of the incoming material conveyor belt body (110); each incoming material conveyor belt gantry (120) has an elongated oval mounting hole at the top, and the incoming material conveyor belt baffle (130) is slidably and fixedly installed through the elongated oval mounting hole along the length direction of the incoming material conveyor belt gantry (120); by adjusting the lateral position of the incoming material conveyor belt baffle (130), a three-channel conveying layout or a four-channel conveying layout is formed on the incoming material conveyor belt body (110).

3. The flexible toilet paper conveying line according to claim 1, characterized in that, The material inlet swing conveyor belt (200) includes a material inlet swing conveyor belt support (210), a material inlet swing conveyor belt body (220), a material inlet swing conveyor belt body swing drive element (230), a material inlet swing conveyor belt gantry (240), and a material inlet swing conveyor belt baffle (250). One end of the material inlet swing conveyor belt body (220) is hinged to one side of the material inlet swing conveyor belt support (210) to form a swing fulcrum. The other end of the material inlet swing conveyor belt body (220) is connected to the other side of the material inlet swing conveyor belt support (210) through the material inlet swing conveyor belt body swing drive element (230), and is conveyed by the material inlet swing conveyor belt. The main body swing drive element (230) drives the other end of the material inlet swing conveyor belt body (220) to swing up and down; multiple sets of material inlet swing conveyor belt gantry frames (240) are arranged at intervals along the conveying direction of the material inlet swing conveyor belt body (220); each material inlet swing conveyor belt gantry frame (240) has an elongated oval mounting hole at the top, and the material inlet swing conveyor belt baffle (250) is fixedly installed by sliding along the length direction of the material inlet swing conveyor belt gantry frame (240) through the elongated oval mounting hole; by adjusting the lateral position of the material inlet swing conveyor belt baffle (250), a three-channel conveying layout or a four-channel conveying layout is formed on the material inlet swing conveyor belt body (220).

4. A flexible toilet paper conveying line according to claim 3, characterized in that, The oscillating drive element (230) of the material inlet oscillating conveyor belt body is any one of an electric telescopic cylinder, a pneumatic telescopic cylinder, or a hydraulic telescopic cylinder.

5. A flexible toilet paper conveying line according to claim 1, characterized in that, The double-layer conveyor belt (300) consists of a double-layer conveyor belt support (310), a three-channel to four-channel conveyor layer and a four-channel conveyor layer. The four-channel conveyor layer is fixedly installed on the double-layer conveyor belt support (310), and the three-channel to four-channel conveyor layer is fixedly installed on the four-channel conveyor layer through a connecting plate (350).

6. A flexible toilet paper conveying line according to claim 5, characterized in that, The four-channel conveying layer includes a lower conveyor belt body (320), a lower conveyor belt gantry (330), and a lower conveyor belt baffle (340). The lower conveyor belt body (320) is fixedly installed on the double-layer conveyor belt support (310), and multiple sets of lower conveyor belt gantry (330) are arranged at intervals along the conveying direction of the lower conveyor belt body (320). Each lower conveyor belt gantry (330) has an elongated oval mounting hole at its top. The lower conveyor belt baffle (340) is fixedly installed by sliding along the length of the lower conveyor belt gantry (330) through the elongated oval mounting hole. By adjusting the lateral position of the lower conveyor belt baffle (340), a four-channel conveying layout is formed on the lower conveyor belt body (320).

7. A flexible toilet paper conveying line according to claim 6, characterized in that, The three-channel to four-channel conveyor layer includes an upper conveyor belt body (360), an upper conveyor belt gantry (370), upper conveyor belt baffles (380), an upper conveyor belt single-channel baffle group (390), and a baffle group horizontal swing drive element (391). The upper conveyor belt body (360) is fixedly connected to the lower conveyor belt body (320) through a connecting plate (350). Multiple sets of upper conveyor belt gantry are arranged at intervals along the conveying direction of the upper conveyor belt body (360). The upper conveyor belt baffle (370), the upper conveyor belt single-channel baffle group (390), the upper conveyor belt baffle (380), the upper conveyor belt single-channel baffle group (390) and the upper conveyor belt baffle (380) are installed sequentially on the upper conveyor belt gantry (370) along the main body of the upper conveyor belt (360) to form a three-channel conveying layout, a three-to-two conveying layout, a two-channel conveying layout, a two-to-four conveying layout and a four-channel conveying layout; The upper conveyor belt gantry (370) for installing the upper conveyor belt baffle (380) has an elongated oval mounting hole on its top. The upper conveyor belt baffle (380) is slidably and fixedly installed through the elongated oval mounting hole along the length of the upper conveyor belt gantry (370). By adjusting the lateral position of the upper conveyor belt baffle (380), three-channel conveying layout, two-channel conveying layout and four-channel conveying layout are formed on the upper conveyor belt body (360) by intervals. The upper conveyor belt single-channel baffle assembly (390) is a baffle assembly with a single channel connected as a whole; The three-to-two conveyor layout includes two upper conveyor belt single-channel baffle groups (390). One end of each of the two upper conveyor belt single-channel baffle groups (390) is hinged to the upper conveyor belt gantry (370) and corresponds to the entrance channel of the two-channel conveyor layout. The other end of each of the two upper conveyor belt single-channel baffle groups (390) is mounted on the upper conveyor belt gantry (370) through a baffle group horizontal swing drive element (391). The other end of each of the two upper conveyor belt single-channel baffle groups (390) is driven to switch between the three channels of the three-channel conveyor layout through the baffle group horizontal swing drive element (391). The two-to-four conveyor layout includes two upper conveyor belt single-channel baffle groups (390). One end of each of the two upper conveyor belt single-channel baffle groups (390) is hinged to the upper conveyor belt gantry (370) and corresponds to the outlet channel of the two-channel conveyor layout. The other end of each of the two upper conveyor belt single-channel baffle groups (390) is mounted on the upper conveyor belt gantry (370) through a baffle group horizontal swing drive element (391). The other end of each of the two upper conveyor belt single-channel baffle groups (390) is driven by the baffle group horizontal swing drive element (391) to switch between the four channels of the four-channel conveyor layout.

8. A flexible toilet paper conveying line according to claim 7, characterized in that, The horizontal swing drive element (391) of the baffle group is any one of an electric telescopic cylinder, a pneumatic telescopic cylinder, or a hydraulic telescopic cylinder.

9. A flexible toilet paper conveying line according to claim 1, characterized in that, The discharge oscillating conveyor belt (400) includes a discharge oscillating conveyor belt support (410), a discharge oscillating conveyor belt body (420), a discharge oscillating conveyor belt body oscillating drive element (430), a discharge oscillating conveyor belt gantry (440), and a discharge oscillating conveyor belt baffle (450). One end of the discharge oscillating conveyor belt body (420) is hinged to one side of the discharge oscillating conveyor belt support (410) to form an oscillating fulcrum. The other end of the discharge oscillating conveyor belt body (420) is connected to the other side of the discharge oscillating conveyor belt support (410) through the discharge oscillating conveyor belt body oscillating drive element (430). The swing drive element (430) of the swing conveyor belt body drives the other end of the discharge swing conveyor belt body (420) to swing up and down; multiple sets of discharge swing conveyor belt gantry frames (440) are arranged at intervals along the conveying direction of the discharge swing conveyor belt body (420); each discharge swing conveyor belt gantry frame (440) has an elongated oval mounting hole on the top of each discharge swing conveyor belt gantry frame (440), and the discharge swing conveyor belt baffle (450) is fixedly installed by sliding along the length direction of the discharge swing conveyor belt gantry frame (440) through the elongated oval mounting hole; by adjusting the lateral position of the discharge swing conveyor belt baffle (450), a four-channel conveying layout is formed on the discharge swing conveyor belt body (420).

10. A flexible toilet paper conveying line according to claim 9, characterized in that, The main swing drive element (430) of the discharge swing conveyor belt is any one of an electric telescopic cylinder, a pneumatic telescopic cylinder, or a hydraulic telescopic cylinder.

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