Adjustable conveying belt protection device for furniture production

Abstract

The invention relates to the technical field of protection devices, and particularly discloses an adjustable conveying belt protection device for furniture production, which comprises supporting legs, a cross rod is fixedly mounted at the upper ends of the supporting legs, a convex sliding rod is slidably mounted from the inside to the outer side of the cross rod, and a main connecting rod is fixedly mounted on the upper end surface of the convex sliding rod; an elastic rod in the protection assembly can buffer vibration during material conveying, a silica gel protection film layer on the outer side of a first protection arc-shaped plate makes direct contact with materials, and surface damage caused by rigid friction is avoided; an arc-shaped connecting plate is matched with an arc-shaped sliding groove, so that the protection assembly can adapt to slight deformation of the material, the protection effect on the damageable furniture plate is further improved, and the surface quality of a product is maintained; meanwhile, the telescopic protection wings are additionally arranged to fill gaps of the arc-shaped plates, the buffer extension sections can be adjusted to change the protection radius, the protection film can be spliced and extended to expand the coverage width, and the protection range is expanded from the three dimensions of gap filling, radius adjustment and width expansion.

Description

Technical Field

[0001] This invention relates to the field of protective device technology, and in particular to an adjustable conveyor belt protective device for furniture production. Background Technology

[0002] In the furniture manufacturing process, conveyor belts are the core equipment for the efficient transfer of materials such as boards and components, and their stable operation directly affects production efficiency and product quality.

[0003] However, existing conveyor belts used in furniture production generally lack targeted protective devices and have many problems. On the one hand, furniture materials vary greatly in size and thickness, and traditional conveyor belts do not have flexible adjustable lateral protection structures. During material transmission, deviation and collision are likely to occur, resulting in damage to the edges and corners of the materials and increasing the defect rate.

[0004] On the other hand, the surface of conveyor belts is mostly a rigid transmission surface. For furniture boards with easily scratched surfaces, friction can easily cause surface damage during transmission. At the same time, existing protective structures are mostly fixed designs, which cannot adjust the protective range and height according to production needs. They have poor adaptability and cannot meet the usage needs of diverse furniture production scenarios, thus restricting the improvement of production efficiency and the guarantee of product quality.

[0005] Secondly, in the existing structure, most of the spacing is adjusted by screws during use. However, due to the wear of the screw drive threads, the adjustment on both sides is not synchronized, resulting in unilateral offset. It cannot be locally adapted to furniture with irregular widths.

[0006] Therefore, an adjustable conveyor belt protection device for furniture production is proposed. Summary of the Invention

[0007] The purpose of this invention is to provide an adjustable conveyor belt protection device for furniture production, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an adjustable conveyor belt protection device for furniture production, comprising a support leg, a crossbar fixedly installed at the upper end of the support leg, a convex slide rod slidably installed from the inside to the outside of the crossbar, and a main connecting rod fixedly installed on the upper end face of the convex slide rod; Each of the main connecting rods is rotatably mounted with a first connecting rod at the opposite end. An mounting plate is fixedly mounted on the inner side of the first connecting rod, and first protective rollers are rotatably mounted at equal intervals on the inner side of the mounting plate. A conveyor belt is provided on the inner side of the two crossbars at the front and rear, and multiple protective components are rotatably installed at equal intervals on the upper end surface of the conveyor belt.

[0009] Preferably, the protective assembly includes a first rotating shaft, an elastic rod, a first protective arc-shaped plate, an arc-shaped groove, an arc-shaped connecting plate, and a silicone protective film layer, wherein the first rotating shaft is installed on the outside of the conveyor belt.

[0010] Preferably, elastic rods are fixedly installed in a ring array at the center of both ends of the outer circumference of the first rotating shaft, and first protective arc plates are evenly fixedly installed on the outer ring array of the elastic rods. There are three first protective arc plates, and there is a gap between adjacent first protective arc plates.

[0011] Preferably, each of the two adjacent first protective arc-shaped plates has an arc-shaped groove extending from its side to its interior, and an arc-shaped connecting plate is slidably installed on the inner side of the two adjacent arc-shaped grooves. A silicone protective film layer is fixedly installed on the outer circumferential surface of each of the first protective arc-shaped plates.

[0012] Preferably, the upper end face and the interior of the crossbar are provided with staggered convex grooves, the ends of the convex grooves that are far apart and located on the outer side of the crossbar are in a through state, and the interior of the crossbar is provided with staggered cavity grooves, and the adjacent ends of the cavity grooves are in a corresponding state with the adjacent convex grooves.

[0013] Preferably, a servo motor is fixedly installed at the middle of the lower end face of the crossbar, the output shaft of the servo motor extends into the interior of the crossbar, and a drive gear is fixedly installed on the output shaft. A rack is meshed on the circumferential surface of the drive gear, the rack is slidably installed inside the cavity groove, and one adjacent end of the rack is fixedly connected to a convex slide rod, the convex slide rod being slidably installed inside the convex slide groove.

[0014] Preferably, a first motor is fixedly installed inside the two main connecting rods at their far ends. The output shaft of the first motor extends to the outside of the main connecting rod, and a first gear is fixedly installed on the output shaft. A second gear is rotatably installed at the outside end of the main connecting rod. The second gear and the first gear mesh with each other. A rotating shaft is fixedly installed at the center of the inner surface of the second gear, and the rotating shaft is fixedly connected to the first connecting rod.

[0015] Preferably, a second motor is fixedly installed inside the end of the first connecting rod away from the main connecting rod, a third gear is fixedly installed on the output shaft of the second motor, and a fourth gear is rotatably installed on the outer end of the first connecting rod. The fourth gear and the third gear mesh with each other, and the fourth gear and the second connecting rod are fixedly connected.

[0016] Preferably, a drive slide rod is slidably installed on the upper end face of the second connecting rod, and a reinforcing rod is fixedly installed on the upper end of the drive slide rod. Honeycomb protective rollers are rotatably installed at equal intervals on the inner side of the reinforcing rod. Telescopic cylinders are fixedly installed at both ends of the reinforcing rod, and the lower end of the telescopic cylinder is fixedly installed on the side of the second connecting rod.

[0017] Preferably, L-shaped support rods are fixedly installed at both the front and rear ends of the outer side of the crossbar, and adjusting rods are rotatably installed on the upper inner side of each L-shaped support rod. Protective components are rotatably installed at both ends of the inner side of the two adjusting rods. Mounting rods are fixedly installed at both the front and rear ends of the inner side of the crossbar, and a second rotating shaft is rotatably installed on the upper inner side of the mounting rods. Conveyor belts are rotatably installed on the circumferential surfaces of the two ends of the left and right second rotating shafts.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention addresses the problem of furniture boards easily scratched by the rigid surface of conveyor belts by providing flexible protection through a protective component on the conveyor belt. The elastic rod in the protective component buffers vibrations during material transport, and the silicone protective film layer on the outer side of the first protective arc-shaped plate directly contacts the material, preventing surface damage caused by rigid friction. Furthermore, the cooperation between the arc-shaped connecting plate and the arc-shaped groove allows the protective component to adapt to slight deformations of the material, further enhancing the protection effect on easily damaged furniture boards and maintaining product surface quality. Simultaneously, by adding retractable protective wings to fill gaps in the arc-shaped plate, adjusting the buffer extension section to change the protective radius, and splicing and extending the protective film to expand the coverage width, the protection range is expanded from three dimensions: gap filling, radius adjustment, and width expansion. This avoids localized damage caused by incomplete protective coverage and further ensures the integrity of the product surface.

[0019] 2. This invention addresses the problems of inadequate lateral protection and easy material deviation and collision in traditional conveyor belts. The device, through the cooperation of a crossbar, a convex sliding rod, and a main connecting rod, allows for flexible adjustment of the position of the first connecting rod and the first protective roller on the mounting plate, achieving precise adjustment of the lateral protection range to accommodate furniture materials of different sizes. Simultaneously, the rotational characteristics of the first protective roller convert the sliding friction between the material and the protective structure into rolling friction, preventing damage to the edges and corners of the material due to friction, effectively reducing the defect rate and ensuring the integrity of material transmission.

[0020] 3. This invention addresses the problems of poor synchronization and low adaptability in the adjustment of existing protective structures. The device employs a servo motor driving a gear and rack to move a convex sliding rod stably within a convex groove, ensuring synchronized adjustment of the protective structures on both sides and preventing unilateral deviation. Simultaneously, the first and second motors, through gear transmission, can adjust the angles of the first and second connecting rods, while the telescopic cylinder can adjust the height of the honeycomb protective roller. This multi-dimensional adjustment capability allows the device to adapt to furniture materials of irregular width and varying thicknesses, meeting the needs of diverse production scenarios. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a structural diagram of the first protective roller and the honeycomb protective roller of the present invention; Figure 3 This is a schematic diagram of the crossbar, graphic slide bar, and graphic slide groove of the present invention; Figure 4 This is a structural diagram of the first protective roller and the honeycomb protective roller of the present invention; Figure 5 This is a structural diagram of the honeycomb protective roller of the present invention; Figure 6 This is a structural diagram of the adjusting rod and protective assembly of the present invention; Figure 7 This is a structural diagram of the protective component of the present invention; Figure 8 This is a schematic diagram of the protective component of the present invention.

[0023] Explanation of reference numerals in the attached figures: 1. Support leg; 101. Crossbar; 102. Convex groove; 103. Hollow groove; 104. Convex slide bar; 105. Rack; 106. Servo motor; 107. Drive gear; 108. Main connecting rod; 2. First motor; 201. First gear; 202. Second gear; 203. First connecting rod; 204. Second motor; 205. Third gear; 206. Fourth gear; 207. Mounting plate; 208. First protective roller; 209. Second connecting rod; 210. Drive slide bar; 211. Telescopic cylinder; 212. Reinforcing rod; 213. Honeycomb protective roller; 3. L-shaped support rod; 301. Adjusting rod; 4. Protective components; 401. First rotating shaft; 402. Elastic rod; 403. First protective arc plate; 404. Arc-shaped slide groove; 405. Arc-shaped connecting plate; 406. Silicone protective film layer; 5. Mounting rod; 501. Second rotating shaft; 502. Conveyor belt. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1 to 8 The present invention provides a technical solution: An adjustable conveyor belt protection device for furniture production includes two support legs 1. A crossbar 101 is fixedly mounted on the top of each support leg 1. The upper surface and interior of each crossbar 101 are provided with staggered and parallel convex grooves 102. It should be noted that the ends of the convex grooves 102 that are furthest apart, i.e., located on the outer side of the crossbar 101, are through-holes. The upper surface and interior of the middle section of the crossbar 101 are recessed. Figure 3 As shown.

[0026] Then, inside the crossbar 101, two misaligned cavity grooves 103 are formed. The misalignment of the two cavity grooves 103 is opposite to the misalignment of the convex groove 102. Therefore, the adjacent positions of the two cavity grooves 103 that are recessed in the crossbar 101 are in a through-hole state. Figure 3 As shown.

[0027] like Figure 3 As shown, the interior of the convex groove 102 is used for slidingly mounting the convex slide rod 104, while the interior of the cavity groove 103 is used for slidingly mounting the rack 105. One end of the rack 105 is fixedly connected to one end of the inner side of the adjacent convex slide rod 104. Then, a servo motor 106 is fixedly mounted in the middle of the lower end face of the crossbar 101. The output shaft of the servo motor 106 extends into the interior of the crossbar 101, and a drive gear 107 is fixedly mounted on the output shaft. The drive gear 107 and the two racks 105 are in a meshing state. Finally, a main connecting rod 108 is fixedly mounted on the upper end face of each convex slide rod 104. The lower end face of the main connecting rod 108 is in a contact state with the upper end face of the crossbar 101. Figure 2 As shown.

[0028] Therefore, with the above structure, during operation, when the servo motor 106 starts, its output shaft drives the drive gear 107 to rotate. Since the drive gear 107 meshes with the two racks 105, the racks 105 slide inside the cavity groove 103. Because one end of the rack 105 is fixedly connected to one end of the adjacent convex slide rod 104, the sliding of the rack 105 will drive the convex slide rod 104 to slide inside the convex slide groove 102, thereby driving the main connecting rod 108 to move. The lower end face of the main connecting rod 108 always remains in contact with the upper end face of the crossbar 101, ensuring the stability of the device operation. By rotating the servo motor 106 forward and reverse, the reciprocating motion of the main connecting rod 108 can be realized, thereby meeting the needs for adjusting the position of the conveyor belt protection device in the furniture production process, and thus adjusting the subsequent width.

[0029] Then, a first motor 2 is fixedly installed inside the two main connecting rods 108 at their far ends. The output shaft of the first motor 2 extends to the outside of the main connecting rod 108, and a first gear 201 is fixedly installed on the output shaft. A first connecting rod 203 is rotatably installed at the outside end of the main connecting rod 108. At the rotatable connection point between the first connecting rod 203 and the main connecting rod 108, the first connecting rod 203 has a concave structure, while the main connecting rod 108 has a convex structure. Figure 3 As shown, the two can therefore be well combined. The rotatable connection uses a bearing rod, while the bearing rod and the first connecting rod 203 are in a fixed connection state. Furthermore, a second gear 202 is fixedly mounted on one end of the bearing rod, and the second gear 202 meshes with the first gear 201. Figure 3 As shown.

[0030] In addition, a mounting plate 207 is fixedly installed on the inner side of both the front and rear first connecting rods 203, and multiple first protective rollers 208 are rotatably mounted at equal intervals on the left side of the mounting plate 207, such as... Figure 4 As shown, the first protective roller 208 is made of wear-resistant material, which can effectively resist scratches and collisions that may occur during the transportation of furniture, thereby extending the service life of the first protective roller 208. At the same time, the surface of the first protective roller 208 is specially treated to present a smooth texture, which not only reduces the friction between it and the furniture, making the furniture more smoothly transported, but also avoids noise caused by friction, creating a quieter environment in the work area.

[0031] During use, when the first motor 2 is started, its output shaft drives the first gear 201 to rotate. Since the second gear 202 and the first gear 201 mesh with each other, the rotation of the first gear 201 will drive the second gear 202 to rotate, thereby causing the bearing rod fixedly connected to the second gear 202 to rotate. The rotation of the bearing rod will then drive the first connecting rod 203 to rotate around the position rotatably connected to the main connecting rod 108, thereby realizing the angle adjustment of the first connecting rod 203.

[0032] When the angle of the first connecting rod 203 changes, the mounting plate 207, which is fixedly installed on the inner side of the two first connecting rods 203, will also change position accordingly. During furniture transport, the furniture will come into contact with multiple first protective rollers 208 rotatably mounted on the mounting plate 207. The first protective rollers 208, with their wear-resistant materials and smooth surfaces, protect the furniture from damage and ensure smooth transport. Furthermore, according to the transport requirements of furniture of different sizes and shapes, the positions of the first connecting rods 203 and the mounting plate 207 can be flexibly adjusted by controlling the forward and reverse rotation and the rotation angle of the first motor 2, thereby adjusting the relative position between the first protective rollers 208 and the conveyor belt 502 to better accommodate furniture transport.

[0033] It should be noted that the above structure can be used to adjust the position of the first connecting rod 203, so that the two first connecting rods 203 on the left and right can move closer or further apart.

[0034] Then, a second motor 204 is fixedly installed inside the end of the first connecting rod 203 away from the main connecting rod 108. The output shaft of the second motor 204 extends to the outside of the first connecting rod 203, and a third gear 205 is fixedly installed on the output shaft. Next, a second connecting rod 209 is rotatably installed at the outside end of the first connecting rod 203. The position and structure of the rotatable connection between the second connecting rod 209 and the first connecting rod 203 are consistent with the aforementioned structure of the rotatable connection between the main connecting rod 108 and the first connecting rod 203. Therefore, the fourth gear 206 and the third gear 205 on the outside of the second connecting rod 209 mesh with each other. Figure 4 As shown.

[0035] Therefore, during use, when the second motor 204 starts, it will drive the third gear 205 to rotate. Since the third gear 205 meshes with the fourth gear 206 on the outside of the second connecting rod 209, the fourth gear 206 will rotate accordingly, thereby driving the second connecting rod 209 to rotate.

[0036] This design allows the second connecting rod 209 to be adjusted in angle according to actual needs, so as to better facilitate the transportation of furniture.

[0037] Meanwhile, drive slide rods 210 are slidably installed on the upper part and inside of the two second connecting rods 209 on the left and right sides. A reinforcing rod 212 is fixedly installed on the upper end of two adjacent drive slide rods 210. Telescopic cylinders 211 are fixedly installed on the lower part of both ends of the reinforcing rods 212. The lower end of the telescopic cylinders 211 is fixedly installed on the outer side of the second connecting rods 209. Honeycomb protective rollers 213 are rotatably installed at equal intervals on the inner side of the drive slide rods 210. Figure 4 As shown.

[0038] Therefore, during use, when the telescopic cylinder 211 is activated, it will drive the reinforcing rod 212 to move up and down. Since the reinforcing rod 212 is fixedly connected to the drive slide rod 210, the drive slide rod 210 will also slide from the upper part of the second connecting rod 209 to the inside.

[0039] The honeycomb protective rollers 213, which are rotatably mounted at equal intervals on the inner side of the drive slide 210, effectively disperse pressure and reduce damage to the furniture surface when in contact with it through their unique honeycomb structure. Their rotational characteristics also ensure smoother furniture transport. This design not only improves the adjustability of the conveyor 502 with its protective device but also significantly enhances the protection of the furniture.

[0040] Furthermore, during use, by adjusting the angle of the second connecting rod 209, the subsequent honeycomb protective roller 213 can fix and limit the furniture during the transportation process, so that the furniture will not shift during transportation.

[0041] L-shaped support rods 3 are fixedly installed at both the front and rear edges of the outer side of the crossbar 101. Adjusting rods 301 are rotatably installed on the upper inner side of each L-shaped support rod 3. Protective components 4 are rotatably installed on the inner sides of both ends of the front and rear adjusting rods 301. Figure 6 As shown.

[0042] The protective component 4 protects the first rotating shaft 401, which is rotatably mounted on the inner sides of both ends of the adjusting rod 301. Elastic rods 402 are evenly fixedly mounted in a ring array on the circumferential surface of the first rotating shaft 401 at both ends and the middle circumferential surface. First protective arc-shaped plates 403 are evenly fixedly mounted in a ring array on the outer side of the elastic rods 402. There are gaps between the first protective arc-shaped plates 403. Arc-shaped grooves 404 are formed on both sides and inside of each first protective arc-shaped plate 403. Arc-shaped connecting plates 405 are slidably mounted at one end and inside of each adjacent arc-shaped groove 404. Figure 7 As shown, a silicone protective film layer 406 is fixedly installed on the outer side of the first protective arc plate 403.

[0043] Therefore, during use, when the furniture moves on the conveyor belt 502, the protective component 4 can play an excellent protective role. The first rotating shaft 401 rotates stably on the inner side of both ends of the adjusting rod 301, which drives the elastic rod 402 to rotate accordingly. With its good elasticity, the elastic rod 402 can deform to a certain extent when subjected to external impact, thereby buffering the impact force and avoiding direct and strong collisions with the furniture.

[0044] To further expand the protective coverage of the protective component 4 for materials of different sizes and thicknesses, an adjustable-length buffer extension section is provided between the elastic rod 402 and the first protective arc plate 403. The buffer extension section includes a hollow sleeve nested outside the elastic rod and a miniature buffer spring connecting the sleeve and the first protective arc plate 403. The length of the hollow sleeve can be adjusted according to the material size requirements. After adjustment, the position is locked by bolts. The two ends of the miniature buffer spring are fixed to the end of the sleeve and the inner side of the first protective arc plate, respectively.

[0045] By adjusting the sleeve length, the radial distance between the first protective arc plate 403 and the first rotating shaft can be changed, allowing the protection radius of the protective component to be adjusted within the range of 50-100mm. This adapts to different materials, from thin wood veneers with a thickness of 2-5mm to thick solid wood boards with a thickness of 30-50mm. At the same time, the micro-buffer spring maintains the buffering performance, ensuring that materials of different sizes can obtain stable flexible protection and avoiding protection failure caused by the material size exceeding the original protection range.

[0046] The cleverly designed gaps between the first protective arc-shaped plates 403 ensure the flexibility of the overall structure without affecting its protective function. The cooperation between the arc-shaped groove 404 and the arc-shaped connecting plate 405 allows the first protective arc-shaped plates 403 to work together. When a certain part is subjected to external force, the arc-shaped connecting plate 405 slides in the arc-shaped groove 404, distributing the force to the other first protective arc-shaped plates 403, further enhancing the stability and uniformity of the protection.

[0047] Secondly, a retractable protective wing structure is provided in the gap between adjacent first protective arc-shaped plates 403. The retractable protective wing is a flexible rubber wing with a width of 15-20mm and a thickness of 3-5mm, and the curvature is consistent with that of the first protective arc-shaped plate 403. The two ends of the flexible rubber wing are connected to the outer edge of the first protective arc-shaped plate 403 through hinges. Furthermore, the flexible rubber wing covers the arc-shaped connecting plate 405. When material passes through, the flexible rubber wing unfolds under the pressure of the material, filling the gap between adjacent first protective arc-shaped plates, preventing small materials (such as wooden dovetails, screws, wood chips, etc.) from getting stuck in the gap, and forming a wrap-around protection for the edge of the material, covering the gap area not covered by the original protective structure. When there is no material, the tension spring pulls the protective wing back, without affecting the overall rotation of the protective component, realizing the dynamic expansion and flexible adaptation of the protection range.

[0048] The silicone protective film layer 406 comes into direct contact with the furniture surface. The soft and elastic silicone material effectively reduces friction and prevents scratches. Simultaneously, the silicone protective film layer 406 also provides some dust and water resistance, protecting the furniture from external environmental factors during transport. Through the synergistic effect of these structures, the protective component 4 provides comprehensive and reliable protection for the furniture during transport.

[0049] Secondly, to expand the protective coverage area of ​​the silicone protective film layer 406 and enhance its durability, an extendable protective film is provided on the outside of the silicone protective film layer 406. The extendable protective film is made of flexible silicone, the same material as the silicone protective film layer 406, and has a width of 20-30mm. One side has a raised splicing strip, and the other side has a splicing groove that matches the splicing strip. By cooperating with the splicing strip and the splicing groove, the number of extendable protective films can be increased according to the actual length of the first protective arc plate 403, so as to flexibly expand the protective width. At the same time, the inside of the extendable protective film is attached to the original silicone protective film layer with Velcro, which is convenient for disassembly and replacement. This ensures that while expanding the protection range, the integrity of the protective surface and the flexible contact characteristics are maintained, and the material is prevented from being scratched or damaged locally due to incomplete protective coverage during transportation.

[0050] Finally, mounting rods 5 are fixedly installed at the front and rear edges of the inner sides of the two crossbars 101. The upper inner sides of the two mounting rods 5 are rotatably mounted with a second rotating shaft 501. Conveyor belts 502 are rotatably mounted on the circumferential surfaces of the two second rotating shafts 501. Multiple protective components 4 are rotatably mounted at equal intervals on the outer sides of the two conveyor belts 502. Their effect is the same as the above. Therefore, the clamps can be protected during the conveying process.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable conveyor belt protection device for furniture production, characterized in that: Includes a support leg (1), a crossbar (101) is fixedly installed on the upper end of the support leg (1), a convex slide rod (104) is slidably installed from the inside to the outside of the crossbar (101), and a main connecting rod (108) is fixedly installed on the upper end face of the convex slide rod (104). Each of the main connecting rods (108) has a first connecting rod (203) rotatably mounted at one end away from the other. An mounting plate (207) is fixedly mounted on the inner side of the first connecting rod (203). First protective rollers (208) are rotatably mounted at equal intervals on the inner side of the mounting plate (207). A conveyor belt (502) is provided on the inner side of the two crossbars (101) at the front and rear, and multiple protective components (4) are rotatably installed at equal intervals on the upper end surface of the conveyor belt (502).

2. The adjustable conveyor belt protection device for furniture production according to claim 1, characterized in that: The protective component (4) includes a first rotating shaft (401), an elastic rod (402), a first protective arc plate (403), an arc-shaped groove (404), an arc-shaped connecting plate (405), and a silicone protective film layer (406). The first rotating shaft (401) is mounted on the outside of the conveyor belt (502).

3. The adjustable conveyor belt protection device for furniture production according to claim 2, characterized in that: The first rotating shaft (401) has elastic rods (402) fixedly installed in a ring array at both ends of the outer circumference. The elastic rods (402) are uniformly fixedly installed in a ring array on the outer side. There are three first protective arc plates (403), and there is a gap between adjacent first protective arc plates (403).

4. The adjustable conveyor belt protection device for furniture production according to claim 3, characterized in that: An arc-shaped groove (404) is provided on the side and inside of each of the two adjacent first protective arc-shaped plates (403). An arc-shaped connecting plate (405) is slidably installed on the inner side of the two adjacent arc-shaped grooves (404). A silicone protective film layer (406) is fixedly installed on the outer circumferential surface of each of the first protective arc-shaped plates (403).

5. The adjustable conveyor belt protection device for furniture production according to claim 1, characterized in that: The upper end face of the crossbar (101) is provided with a staggered convex groove (102) to the inside. The end of the convex groove (102) that is far away from each other and located on the outer side of the crossbar (101) is in a through state. The inside of the crossbar (101) is provided with a staggered cavity groove (103), and the adjacent end of the cavity groove (103) is in a corresponding state with the adjacent convex groove (102).

6. The adjustable conveyor belt protection device for furniture production according to claim 1, characterized in that: A servo motor (106) is fixedly installed in the middle of the lower end face of the crossbar (101). The output shaft of the servo motor (106) extends into the interior of the crossbar (101), and a drive gear (107) is fixedly installed on the output shaft. A rack (105) is meshed on the circumferential surface of the drive gear (107). The rack (105) is slidably installed inside the cavity groove (103). One adjacent end of the rack (105) is fixedly connected to a convex slide rod (104). The convex slide rod (104) is slidably installed inside the convex slide groove (102).

7. The adjustable conveyor belt protection device for furniture production according to claim 1, characterized in that: A first motor (2) is fixedly installed inside the two main connecting rods (108) at their far ends. The output shaft of the first motor (2) extends to the outside of the main connecting rod (108), and a first gear (201) is fixedly installed on the output shaft. A second gear (202) is rotatably installed on the outside end of the main connecting rod (108). The second gear (202) and the first gear (201) mesh with each other. A rotating shaft is fixedly installed at the center of the inner side of the second gear (202), and the rotating shaft is fixedly connected to the first connecting rod (203).

8. The adjustable conveyor belt protection device for furniture production according to claim 7, characterized in that: A second motor (204) is fixedly installed inside the end of the first connecting rod (203) away from the main connecting rod (108). A third gear (205) is fixedly installed on the output shaft of the second motor (204). A fourth gear (206) is rotatably installed on the outer end of the first connecting rod (203). The fourth gear (206) and the third gear (205) mesh with each other, and the fourth gear (206) is fixedly connected to the second connecting rod (209).

9. An adjustable conveyor belt protection device for furniture production according to claim 8, characterized in that: A drive slide rod (210) is slidably installed on the upper end face of the second connecting rod (209) to the inside. A reinforcing rod (212) is fixedly installed on the upper end of the drive slide rod (210). A honeycomb protective roller (213) is rotatably installed at equal intervals on the inner side of the reinforcing rod (212). Telescopic cylinders (211) are fixedly installed at both ends of the reinforcing rod (212). The lower end of the telescopic cylinder (211) is fixedly installed on the side of the second connecting rod (209).

10. An adjustable conveyor belt protection device for furniture production according to claim 1, characterized in that: L-shaped support rods (3) are fixedly installed at both ends of the outer side of the crossbar (101). Adjusting rods (301) are rotatably installed on the upper inner side of the L-shaped support rods (3). Protective components (4) are rotatably installed on both ends of the inner side of the two adjusting rods (301). Mounting rods (5) are fixedly installed at both ends of the inner side of the crossbar (101). A second rotating shaft (501) is rotatably installed on the upper inner side of the mounting rods (5). Conveyor belts (502) are rotatably installed on the circumferential surfaces of the two ends of the left and right second rotating shafts (501).

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