Sheet material conveying device with self-adaptive adsorption function

Abstract

The invention discloses a flaky material conveying device with a self-adaptive adsorption function, and relates to the technical field of adsorption conveying, the flaky material conveying device with the self-adaptive adsorption function comprises a conveying belt, a hanger rail, a telescopic frame, a storage frame, a mounting frame, a negative pressure suction head, an auxiliary assembly, a switching assembly and a leveling assembly; when soft sheets are grabbed and conveyed, the auxiliary assembly can be started to descend, the bottom face of the auxiliary assembly and the bottom face of the negative pressure suction head are kept on the same horizontal plane, the contact area between the auxiliary assembly and the soft sheets can be increased, wrinkles formed on the surfaces of the soft sheets due to too large suction force are prevented, and the service life of the soft sheets is prolonged. When hard sheets are adsorbed and grabbed, the auxiliary assembly can be operated to ascend, the contact area between the auxiliary assembly and the hard sheets is reduced, scratches are prevented, and meanwhile after the soft sheets are transferred to the conveying belt, the leveling assembly continuously works in a reciprocating mode to level each set of sheets.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of adsorption conveying, and particularly relates to a sheet material conveying device with self-adaptive adsorption function. BACKGROUND

[0002] In the unmanned yard intelligent control system of sheet processing and manufacturing, the adsorption grabbing device can realize the stacking or sheet separating operation of the sheet. In the sheet processing and conveying process, the negative pressure suction head on the adsorption grabbing device continuously grabs the sheet material to the conveying belt production line, so that the next production processing work of the sheet is carried out, and the unmanned stacking or sheet separating operation of the sheet is realized.

[0003] The prior art such as patent No. CN107758227B sheet material turning conveying device sets the first conveying belt and the second conveying belt downstream of the first conveying belt, sets the conveying direction of the first conveying belt perpendicular to the conveying direction of the second conveying belt, sets the baffle on the side of the second conveying belt opposite to the first conveying belt, so that the sheet material is easily dropped on the second conveying belt when the sheet material is transferred to the second conveying belt, and the "head" direction of the sheet material is rotated by 90 degrees, avoiding the need for another turntable device in the prior art, saving the device, and facilitating the turning. In addition, the prior art CN107472832B sheet material conveying mechanism changes the circumferential guide rail of the fixed adsorption disc into a cam guide rail, and realizes the functions of enlarging and reducing the spacing between the adsorption discs at the two ends of the cam. By replacing the planar triangular linkage mechanism with a three-dimensional triangular linkage mechanism, the linkage mechanism on the adsorption disc can be more densely distributed on the rotating disc and the cam disc, so that more adsorption devices can be arranged on the circumference. The present application changes the peripheral adsorption disc fixed guide rail into a cam guide rail, so that the material adsorption assembly can rotate with a larger distance on the circumference.

[0004] However, the adsorption device in the prior art is not convenient for adapting to the grabbing and conveying of sheet materials of different materials. Most negative pressure suction heads can rely on strong suction force to grab and convey sheet materials of hard materials, while the strong suction force easily causes the negative pressure suction head to wrinkle and deform the plastic film, affecting the quality of subsequent processing. When the suction force is small, the film is easily detached during the grabbing process. At the same time, the soft material sheet is easily deformed under external force because of the low structural rigidity of the soft material sheet, and various forces in the whole transfer process easily damage the natural flat state, so the soft material sheet which is not flat enough still easily affects the quality of subsequent processing.

[0005] Therefore, the present application provides a sheet material conveying device with self-adaptive adsorption function. SUMMARY

[0006] The sheet material conveying device with adaptive adsorption function aims to solve the problems in the prior art.

[0007] To achieve the above object, the present application provides the following technical scheme: a sheet material conveying device with adaptive adsorption function, the conveying device comprising a conveying belt, a hanging rail, an extension frame, a storage rack, a mounting rack, a negative pressure suction head, an auxiliary assembly, a switching assembly, and a leveling assembly; the hanging rail is fastened to the left side of the conveying belt; the extension frame is in sliding connection with the hanging rail; the storage rack is arranged below the hanging rail; the mounting rack is fastened to the lower end of the extension frame; the negative pressure suction head is fastened to the mounting rack in the form of multiple groups of arrays; the auxiliary assembly is arranged on the periphery of the negative pressure suction head and is in communication with the negative pressure suction head; the auxiliary assembly is in sliding connection with the periphery of the negative pressure suction head; the switching assembly is arranged on the auxiliary assembly; when the auxiliary assembly moves upward, the switching assembly automatically cuts off the communication between the auxiliary assembly and the negative pressure suction head; the leveling assembly is arranged on the frames on both sides of the conveying belt and moves synchronously with the conveying belt to level the sheet material; when the soft sheet material is grabbed and conveyed, the auxiliary assembly can be started to descend, so that the bottom surface of the auxiliary assembly and the bottom surface of the negative pressure suction head are kept on the same horizontal plane, the contact area with the soft sheet material is increased, and the wrinkles on the surface of the soft sheet material caused by excessive suction force are prevented; when the hard sheet material is adsorbed and grabbed, the auxiliary assembly can be operated to rise, the contact area with the hard sheet material is reduced, and the scratches are prevented; during the rising process of the auxiliary assembly, the switching assembly automatically cuts off the communication between the auxiliary assembly and the negative pressure suction head, the suction force at the negative pressure suction head is increased, the adsorption force on the hard sheet material is improved, and the soft sheet material is transferred to the conveying belt, and the leveling assembly continuously reciprocatingly works to level each group of sheet material.

[0008] Preferably, the auxiliary assembly comprises a clamping groove, a sliding ring frame, an adsorption ring, an adsorption port, a ring-shaped pipe, a plastic air pipe, and a driving piece; the clamping groove is arranged on the periphery of the negative pressure suction head; the sliding ring frame is in sliding connection with the clamping groove; the adsorption ring is fastened below the sliding ring frame; the adsorption port is arranged on the bottom of the adsorption ring in the form of equidistant annular arrays; the ring-shaped pipe is fastened to the periphery of the negative pressure suction head; the ring-shaped pipe is made of metal and is in communication with the negative pressure suction head; the plastic air pipe is connected between the ring-shaped pipe and the adsorption ring; and the driving piece is arranged between the mounting rack and the sliding ring frame; when the soft sheet material is adsorbed and grabbed, the bottom surface of the adsorption ring and the bottom surface of the negative pressure suction head are kept on the same horizontal plane, the adsorption port on the bottom of the adsorption ring and the bottom of the negative pressure suction head generate suction force at the same time, the contact area between the adsorption ring and the sheet material is increased when the soft sheet material is adsorbed and grabbed, the suction force of the negative pressure suction head is prevented from being too large, the contact area between the negative pressure suction head and the soft sheet material is prevented from being small, and the wrinkles on the sheet material caused during the adsorption and grabbing process are prevented.

[0009] Preferably, the number of plastic air tubes is consistent with the number of suction ports, and the plastic air tubes are arranged in a ring-shaped equidistant array on the ring-shaped tube and the suction ring, and the connection of the plastic air tube suction ring is directly above the suction port; the distribution of the plastic air tube can ensure that the suction force of each suction port remains consistent, which can effectively prevent the object from falling due to the dispersion of the suction force of the suction ring.

[0010] Preferably, the driving member includes a connecting rod and a pneumatic push rod; the connecting rod is fastened to the sliding ring frame, and the connecting rod passes through the mounting bracket and is in sliding connection with the mounting bracket, and the pneumatic push rod is fastened to the mounting bracket, and the output end of the pneumatic push rod is fastened below the turning point at the end of the connecting rod; when the output end of the pneumatic push rod rises, it will drive the connecting rod to rise, and then drive the suction ring to rise through the sliding ring frame, and when the output end of the pneumatic push rod retracts and descends, it will drive the connecting rod to descend, and then drive the suction ring to descend through the sliding ring frame.

[0011] Preferably, the switching assembly includes an extension pipe, a vent, a rotating pipe, a telescopic sleeve, a sealing ball, an elastic member, a tooth, and a tooth plate; the extension pipe is fastened to the ring-shaped tube, the vent is eccentrically formed in the extension pipe, the extension pipe is in communication with the ring-shaped tube through the vent, the rotating pipe is in sealing rotary connection with the extension pipe, the telescopic sleeve is fastened in the rotating pipe, the telescopic sleeve is eccentrically connected with the rotating pipe, the sealing ball is in sliding connection with the telescopic sleeve, the elastic member is located between the telescopic sleeve and the sealing ball, one end of the elastic member is fastened to the sealing ball, and the other end is fastened to the telescopic sleeve, the teeth are arranged in a ring-shaped array on the periphery of the rotating pipe, the tooth plate is fastened to the sliding ring frame, the tooth plate is in engagement with the teeth, and the plastic air tube is in communication with the rotating pipe; when the pneumatic push rod drives the sliding ring frame to rise to the maximum height, the sealing ball will be pushed by the elastic member and abut against the vent, at this time the gas in the rotating pipe cannot enter the extension pipe, and at this time the suction force at the negative pressure suction head will be concentrated and enhanced, and in this state the suction and grabbing operation of the relatively hard sheet material can be adapted; when the pneumatic push rod drives the sliding ring frame to descend to the same plane as the bottom surface of the negative pressure suction head, at this time the sealing ball will release the sealing of the vent, and the gas will enter the extension pipe from the rotating pipe, at this time the suction ring and the negative pressure suction head will generate suction force at the same time, and in this state the suction and grabbing operation of the soft sheet material can be adapted.

[0012] Preferably, the maximum distance that the sliding ring frame can rise in the clamping groove section is one-fourth of the circumference of the rotating pipe; and when the pneumatic push rod drives the sliding ring frame to rise from the bottom to the top in the clamping groove section, the tooth plate can just drive the rotating pipe to rotate ninety degrees, so that the sealing ball abuts against the vent.

[0013] Preferably, the flattening assembly comprises a rectangular frame, a partition, a bent plate, a lower slide, an upper slide, an inclined plate, a swing plate, a limiting block, a falling opening, a sliding rod, a pressing block, a connecting frame, a telescopic cylinder, a supporting frame, and a rolling piece; the rectangular frame is fastened to the frames on both sides of the conveying belt, the partition is fastened to the rectangular frame through the bent plate, the partition divides the rectangular frame into two slides with equal distance between the upper and lower slides, the upper slide is above the partition, the lower slide is below the partition, the inclined plate is fastened to the right side of the rectangular frame, the swing plate is rotatably connected to the right side of the partition, the limiting block is fastened to the right end of the partition, and the limiting block is below the shaft joint between the swing plate and the partition, the falling opening is at the left end of the partition, the sliding rod is slidably connected to the upper and lower slides, the pressing block is arranged below the sliding rod, the connecting frame is rotatably connected to the sliding rod, the output end of the telescopic cylinder is fastened to the connecting frame, the supporting frame is fastened to the frames on both sides of the conveying belt, the right end of the telescopic cylinder is rotatably connected to the supporting frame, and the rolling piece is arranged on the left side of the rectangular frame; when the soft material is transferred to the conveying belt by the negative pressure suction head, the rolling piece is first lifted, and the soft material passes below the rolling piece; when the soft material is conveyed by the conveying belt and reaches below the pressing block, the telescopic cylinder is started to push the sliding rod to fall from the falling opening and press above the soft material; then the telescopic cylinder drives the sliding rod to move to the right, and the moving speed is consistent with the conveying speed of the conveying belt; then the pressing roller is lowered, and the pressing roller rotates along the rotating sleeve driven by the conveying belt to roll and flatten the soft material; at this time, the pressing block can press the soft material to ensure that the soft material moves synchronously with the conveying belt without stagnation during the rolling and flattening process.

[0014] Preferably, the pressing block is telescopically connected below the sliding rod, and an elastic member two is arranged between the pressing block and the lower side of the sliding rod; when the pressing block presses the soft material, the elastic member two can push the pressing block to maintain the pressure on the soft material to prevent displacement of the material caused by insufficient pressure.

[0015] Preferably, the rolling piece comprises a sliding groove, a rotating sleeve, a pressing roller, and an electric push rod; the sliding groove is arranged on the left side of the rectangular frame, the rotating sleeve is slidably connected to the sliding groove, the pressing roller is rotatably connected to the two groups of rotating sleeves at both ends, the electric push rod is fastened to the rectangular frame, and the output end of the electric push rod is fastened to the rotating sleeve; when the electric push rod pushes the pressing roller to move downward, the pressing roller rotates along the rotating sleeve; at this time, the soft material can be rolled and flattened.

[0016] Compared with the prior art, the present application has the following advantages: 1. The application can start the pneumatic push rod to push the sliding ring frame down when the soft sheet is adsorbed and grabbed, so that the bottom surface of the adsorption ring and the bottom surface of the negative pressure suction head are at the same level, and then the negative pressure suction head is started. Since the adsorption ring is connected with the negative pressure suction head air source through the plastic air pipe and the annular pipe at this time, the adsorption port at the bottom of the adsorption ring and the bottom of the negative pressure suction head can generate suction at the same time. When the soft sheet is adsorbed and grabbed, the adsorption ring can increase the contact area with the sheet, prevent the suction force of the negative pressure suction head from being too large, and prevent the contact area between the sheet and the soft sheet from being too small, which can cause wrinkles in the sheet during the adsorption and grabbing process, and affect the quality of the finished product.

[0017] 2. When the hard sheet is adsorbed and grabbed, the pneumatic push rod can be started to push the sliding ring frame to rise to the maximum height, the tooth plate can be driven to rotate the pipe by ninety degrees, and the pipe can drive the telescopic sleeve and the sealing ball to rotate by ninety degrees around the center of the pipe. The sealing ball after rotation will be pushed by the elastic member I and abutted with the air inlet, so that the gas in the rotating pipe cannot enter the extension pipe, and the suction force at the negative pressure suction head will be concentrated and enhanced at this time. The strong suction force of the negative pressure suction head can ensure that the hard sheet will not fall off, and the adsorption ring will not contact the hard sheet to prevent the sheet from being worn.

[0018] 3. The cooperation of the compression roller and the compression block realizes the continuous rolling and flattening operation of the soft sheet during the conveying process, prevents the soft sheet from being not flat enough after being transferred to the conveying belt, and affects the subsequent processing quality, and under the cooperation of the compression block and the compression roller, the sheet can be effectively prevented from stopping during the flattening operation, and the flattening quality and efficiency are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall appearance of the application; Figure 2 It is an enlarged schematic diagram of the mounting frame of the application; Figure 3 It is a structure schematic diagram of the negative pressure suction head of the application; Figure 4 It is a schematic diagram of the auxiliary assembly of the application; Figure 5 It is a sectional view of the adsorption ring of the application; Figure 6 It is a structure schematic diagram of the switching assembly of the application; Figure 7 It is a sectional view of the rotating pipe of the application; Figure 8 It is a structure schematic diagram of the flattening assembly of the application; Figure 9 It is a side view of the rectangular frame of the application; Figure 10A sectional view of the briquetting device.

[0020] In the figure: 1, conveying belt; 2, suspension rail; 3, telescopic frame; 4, storage frame; 5, mounting frame; 6, negative pressure suction head; 7, auxiliary assembly; 71, clamping groove; 72, sliding ring frame; 73, adsorption ring; 74, adsorption port; 75, annular tube; 76, plastic air pipe; 77, driving member; 771, connecting rod; 772, pneumatic push rod; 8, switching assembly; 81, extension pipe; 82, air vent; 83, rotating pipe; 84, telescopic sleeve; 85, sealing ball; 86, elastic member I; 87, tooth; 88, toothed plate; 9, leveling assembly; 91, rectangular frame; 92, partition plate; 93, bent plate; 94, lower slide; 95, upper slide; 96, inclined plate; 97, swing plate; 98, limiting block; 99, falling port; 910, sliding rod; 911, briquetting device; 9111, elastic member II; 912, connecting frame; 913, telescopic cylinder; 914, support frame; 915, rolling member; 9151, sliding groove; 9152, rotating sleeve; 9153, pressure roller; 9154, electric push rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0022] Please refer to Figures 1 to 10 The present application provides a sheet material conveying device with self-adaptive adsorption function, and the technical solutions are as follows: With reference to Figures 1 to 4The utility model provides a sheet material conveying device with self-adaptive adsorption function, which comprises a conveying belt 1, a hanging rail 2, an extension frame 3, a storage frame 4, a mounting frame 5, a negative pressure suction head 6, an auxiliary assembly 7, a switching assembly 8, and a leveling assembly 9. The hanging rail 2 is fixedly connected to the left side of the conveying belt 1. The extension frame 3 is slidably connected to the hanging rail 2. The storage frame 4 is arranged below the hanging rail 2. The mounting frame 5 is fixedly connected to the lower end of the extension frame 3. The negative pressure suction head 6 is arranged in multiple groups of arrays on the mounting frame 5. The auxiliary assembly 7 is arranged around the negative pressure suction head 6 and is in communication with the negative pressure suction head 6. The auxiliary assembly 7 is slidably connected to the periphery of the negative pressure suction head 6. The switching assembly 8 is arranged on the auxiliary assembly 7. When the auxiliary assembly 7 moves upwards, the switching assembly 8 automatically cuts off the communication between the auxiliary assembly 7 and the negative pressure suction head 6. The leveling assembly 9 is arranged on the frames on both sides of the conveying belt 1 and moves synchronously with the conveying belt 1 to level the sheet material. During operation, the extension frame 3 slides along the hanging rail 2 to above the storage frame 4, and then the extension frame 3 descends. The negative pressure suction head 6 on the mounting frame 5 adsorbs and grabs the sheet material stored in the mounting frame 5, and then transfers the sheet material to the production line of the conveying belt 1 for further production and processing. When the soft sheet material is grabbed and conveyed, the auxiliary assembly 7 can be started to descend, so that the bottom surface of the auxiliary assembly 7 is kept at the same level as the bottom surface of the negative pressure suction head 6, thereby increasing the contact area with the soft sheet material and preventing wrinkles on the surface of the soft sheet material caused by excessive suction force. When the hard sheet material is adsorbed and grabbed, the auxiliary assembly 7 can be operated to rise, thereby reducing the contact area with the hard sheet material and preventing scratches. During the rising process of the auxiliary assembly 7, the switching assembly 8 automatically cuts off the communication between the auxiliary assembly 7 and the negative pressure suction head 6, so that the suction force of the negative pressure suction head 6 is increased, thereby improving the adsorption force of the hard sheet material. Meanwhile, after the soft sheet material is transferred to the conveying belt 1, the leveling assembly 9 continuously reciprocates to level each group of sheet materials.

[0023] Reference Figure 4 and Figure 5The auxiliary assembly 7 comprises a clamping groove 71, a sliding ring holder 72, an adsorption ring 73, adsorption ports 74, a ring-shaped pipe 75, a plastic air pipe 76, and a driving member 77. The clamping groove 71 is arranged on the periphery of the negative pressure suction head 6. The sliding ring holder 72 is in sliding connection with the clamping groove 71. The adsorption ring 73 is fixedly connected below the sliding ring holder 72. The adsorption ports 74 are arranged in an equidistant annular array on the bottom of the adsorption ring 73. The ring-shaped pipe 75 is fixedly connected with the periphery of the negative pressure suction head 6. The ring-shaped pipe 75 is made of metal and is in communication with the negative pressure suction head 6. The plastic air pipe 76 is connected between the ring-shaped pipe 75 and the adsorption ring 73. The driving member 77 is arranged between the mounting bracket 5 and the sliding ring holder 72. When the soft sheet is adsorbed and grabbed, the driving member 77 is started to make the sliding ring holder 72 descend, so that the bottom surface of the adsorption ring 73 is at the same level as the bottom surface of the negative pressure suction head 6. Then the negative pressure suction head 6 is started. Since the adsorption ring 73 is in communication with the air source of the negative pressure suction head 6 through the plastic air pipe 76 and the ring-shaped pipe 75 at this time, the adsorption ports 74 at the bottom of the adsorption ring 73 and the bottom of the negative pressure suction head 6 can generate suction force at the same time. When the soft sheet is adsorbed and grabbed, the adsorption ring 73 can increase the contact area with the sheet, prevent the suction force of the negative pressure suction head 6 from being too large and the contact area between the negative pressure suction head 6 and the soft sheet from being small, and prevent the soft sheet from being wrinkled during the adsorption and grabbing process, thereby affecting the quality of the finished product.

[0024] With reference to Figure 5 The plastic air pipe 76 is arranged in an equidistant annular array on the ring-shaped pipe 75 and the adsorption ring 73, and the number of the plastic air pipes 76 is consistent with the number of the adsorption ports 74. The connection between the plastic air pipe 76 and the adsorption ring 73 is directly above the adsorption port 74. The distribution of the plastic air pipe 76 can ensure that the suction force of each adsorption port 74 remains consistent, thereby effectively preventing the object from falling due to the dispersion of the suction force of the adsorption ring 73.

[0025] With reference to Figure 4 The driving member 77 comprises a connecting rod 771 and a pneumatic push rod 772. The connecting rod 771 is fixedly connected to the sliding ring holder 72 and passes through the mounting bracket 5 and is in sliding connection with the mounting bracket 5. The pneumatic push rod 772 is fixedly connected to the mounting bracket 5, and the output end of the pneumatic push rod 772 is fixedly connected below the turning point at the end of the connecting rod 771. When the output end of the pneumatic push rod 772 rises, the connecting rod 771 will be lifted, and then the adsorption ring 73 will be lifted through the sliding ring holder 72. When the output end of the pneumatic push rod 772 is retracted and descends, the connecting rod 771 will be lowered, and then the adsorption ring 73 will be lowered through the sliding ring holder 72.

[0026] With reference to Figure 4 Figure 6 and Figure 7The switching assembly 8 comprises an extension pipe 81, a vent 82, a rotating pipe 83, a telescopic sleeve 84, a sealing ball 85, an elastic member 86, a tooth 87, and a tooth plate 88. The extension pipe 81 is fixedly connected with the annular pipe 75. The vent 82 is eccentrically arranged on the extension pipe 81. The extension pipe 81 is in communication with the annular pipe 75 through the vent 82. The rotating pipe 83 is sealingly connected with the extension pipe 81. The telescopic sleeve 84 is fixedly connected in the rotating pipe 83. The telescopic sleeve 84 is eccentrically connected with the rotating pipe 83. The sealing ball 85 is slidingly connected with the telescopic sleeve 84. The elastic member 86 is arranged between the telescopic sleeve 84 and the sealing ball 85. One end of the elastic member 86 is fixedly connected with the sealing ball 85, and the other end is fixedly connected with the telescopic sleeve 84. The teeth 87 are arranged in an annular array on the periphery of the rotating pipe 83. The tooth plate 88 is fixedly connected with the sliding ring frame 72. The tooth plate 88 is engaged with the teeth 87. The plastic air pipe 76 is in communication with the rotating pipe 83. When the pneumatic push rod 772 pushes the sliding ring frame 72 to rise to the maximum height, the tooth plate 88 will drive the rotating pipe 83 to rotate by 90 degrees through the teeth 87, and then the rotating pipe 83 will drive the telescopic sleeve 84 and the sealing ball 85 to rotate by 90 degrees around the center of the rotating pipe 83. The rotated sealing ball 85 will be abutted against the vent 82 by the pushing force of the elastic member 86. At this time, the gas in the rotating pipe 83 cannot enter the extension pipe 81. At this time, the suction force of the negative pressure suction head 6 will be concentrated and enhanced. In this state, the hard sheet material can be adsorbed and grabbed. The stronger suction force of the negative pressure suction head 6 can ensure that the hard sheet material will not fall off. At the same time, the adsorption ring 73 does not contact the hard sheet material, which can prevent the sheet material from being abraded. When the pneumatic push rod 772 pushes the sliding ring frame 72 to descend to the bottom surface of the adsorption ring 73 and the bottom surface of the negative pressure suction head 6 are in the same plane, the tooth plate 88 will drive the rotating pipe 83 to rotate by 90 degrees in the opposite direction. At this time, the sealing ball 85 will release the sealing of the vent 82. The gas can enter the extension pipe 81 from the rotating pipe 83. At this time, the adsorption ring 73 and the negative pressure suction head 6 will generate suction force at the same time. In this state, the soft sheet material can be adsorbed and grabbed. The contact area with the sheet material is increased. The suction force of the negative pressure suction head 6 is not too large. The contact area of the negative pressure suction head 6 with the soft sheet material is small. The sheet material is not wrinkled in the adsorption and grabbing process. The product quality is affected.

[0027] With reference to Figure 4 and Figure 7 The maximum distance by which the sliding ring frame 72 can rise in the clamping groove 71 is one fourth of the circumference of the rotating pipe 83. Then, when the pneumatic push rod 772 pushes the sliding ring frame 72 to rise from the bottom to the top in the clamping groove 71, the tooth plate 88 can just drive the rotating pipe 83 to rotate by 90 degrees, so that the sealing ball 85 is abutted against the vent 82.

[0028] With reference to Figure 9 and Figure 10The leveling assembly 9 comprises a rectangular frame 91, a partition plate 92, a bent plate 93, a lower slide 94, an upper slide 95, an inclined plate 96, a swing plate 97, a limiting block 98, a falling port 99, a sliding rod 910, a pressing block 911, a connecting frame 912, a telescopic cylinder 913, a supporting frame 914 and a rolling piece 915. The rectangular frame 91 is fixedly connected to the frames on both sides of the conveying belt 1. The partition plate 92 is fixedly connected to the rectangular frame 91 through the bent plate 93. The partition plate 92 divides the rectangular frame 91 into two slides with equal distances. The upper slide 95 is above the partition plate 92, and the lower slide 94 is below the partition plate 92. The inclined plate 96 is fixedly connected to the right side of the rectangular frame 91. The swing plate 97 is rotatably connected to the right side of the partition plate 92. The limiting block 98 is fixedly connected to the right end of the partition plate 92, and is below the shaft joint of the swing plate 97 and the partition plate 92. The falling port 99 is located at the left end of the partition plate 92. The sliding rod 910 is slidably connected to the upper slide 95 and the lower slide 94. The pressing block 911 is arranged below the sliding rod 910. The connecting frame 912 is rotatably connected to the sliding rod 910. The output end of the telescopic cylinder 913 is fixedly connected to the connecting frame 912. The supporting frame 914 is fixedly connected to the frames on both sides of the conveying belt 1. The right end of the telescopic cylinder 913 is rotatably connected to the supporting frame 914. The rolling piece 915 is arranged on the left side of the rectangular frame 91. The rolling piece 915 comprises a sliding groove 9151, a rotating sleeve 9152, a compression roller 9153 and an electric push rod 9154. The sliding groove 9151 is arranged on the left side of the rectangular frame 91. The rotating sleeve 9152 is slidably connected to the sliding groove 9151. The compression roller 9153 is rotatably connected to the two groups of rotating sleeves 9152. The electric push rod 9154 is fixedly connected to the rectangular frame 91. The output end of the electric push rod 9154 is fixedly connected to the rotating sleeve 9152.The limiting block 98 can prevent the swing plate 97 from rotating downward to the horizontal angle of the partition plate 92. When the negative pressure suction head 6 transfers the soft material to the conveying belt 1, the electric push rod 9154 can be started to push the compression roller 9153 to rise in the sliding groove 9151, so that the soft material passes under the rolling part 915. When the soft material is conveyed to the conveying belt 1 and reaches under the compression block 911, the telescopic cylinder 913 can be started to push the sliding rod 910 to fall from the falling opening 99 and press on the soft material, and then the telescopic cylinder 913 drives the sliding rod 910 to move to the right at a speed consistent with the speed of the conveying belt 1. Then the compression roller 9153 is lowered, and the compression roller 9153 is driven by the conveying belt 1 to rotate along the rotating sleeve 9152 to roll and flatten the soft material. At this time, the compression block 911 can press the soft material to ensure that the soft material moves synchronously with the conveying belt 1 during the rolling and flattening process without stopping. When the sliding rod 910 is moved to the inclined plate 96 by the telescopic cylinder 913, the left end of the soft material will be separated from the compression roller 9153. At this time, the sliding rod 910 will rise along the inclined plate 96 to release the pressing of the soft material. The sliding rod 910 will rise along the inclined plate 96 to open the swing plate 97, and the sliding rod 910 will rise to the top of the inclined plate 96. At this time, the swing plate 97 will automatically fall to the horizontal state under the action of gravity. Then the telescopic cylinder 913 can be started to push the sliding rod 910 to move quickly through the swing plate 97 and the partition plate 92 to the falling opening 99 to perform the pressing operation on the next soft material. The compression roller 9153 will also be quickly lifted and then lowered to roll and flatten the next group of soft materials, and the above operation can be repeated to realize the uninterrupted flattening operation of each group of soft materials.

[0029] Referring to Figure 10 The compression block 911 is connected to the sliding rod 910 in an extension manner, and an elastic element 9111 is arranged between the compression block 911 and the lower part of the sliding rod 910. When the compression block 911 performs the pressing operation on the soft material, the elastic element 9111 can push the compression block 911 to maintain the pressure on the soft material to prevent displacement of the material caused by insufficient pressure.

[0030] Working principle: During the working process, the telescopic frame 3 slides to the upper part of the storage frame 4 along the hanging rail 2, and then the telescopic frame 3 is lowered. The negative pressure suction head 6 on the mounting frame 5 absorbs and grabs the material stored in the mounting frame 5, and then transfers the material to the conveying belt 1 production line for the next production and processing of the material. When the soft sheet is adsorbed and grabbed, the pneumatic push rod 772 can be started to push the sliding ring frame 72 to descend, so that the bottom surface of the adsorption ring 73 is at the same level as the bottom surface of the negative pressure suction head 6, and then the negative pressure suction head 6 is started. Since the adsorption ring 73 is connected to the negative pressure suction head 6 air source through the plastic air pipe 76 and the annular pipe 75 at this time, the adsorption port 74 at the bottom of the adsorption ring 73 can generate suction at the same time as the bottom of the negative pressure suction head 6. When the soft sheet is adsorbed and grabbed, the adsorption ring 73 can increase the contact area with the sheet, prevent the suction of the negative pressure suction head 6 from being too large, and prevent the contact area between the negative pressure suction head 6 and the soft sheet from being small. The adsorption and grabbing process causes wrinkles on the sheet, affecting the quality of the finished product; When the hard sheet is adsorbed and grabbed, the pneumatic push rod 772 can be started to push the sliding ring frame 72 to rise to the maximum height, and the toothed plate 88 will drive the rotating pipe 83 to rotate by ninety degrees through the teeth 87, and then the rotating pipe 83 will drive the telescopic sleeve 84 and the sealing ball 85 to rotate by ninety degrees with the center of the rotating pipe 83. The rotating sealing ball 85 will be pushed against the air inlet 82 by the elastic member one 86 at this time, and the gas in the rotating pipe 83 will not enter the extension pipe 81 at this time. The suction of the negative pressure suction head 6 will be concentrated and enhanced at this time, and the strong suction of the negative pressure suction head 6 can ensure that the hard sheet will not fall off, and the adsorption ring 73 will not contact the hard sheet to prevent the sheet from being worn; When the soft material is transferred to the conveying belt 1 by the negative pressure suction head 6, the electric push rod 9154 can be started to push the compression roller 9153 to rise in the sliding groove 9151, so that the soft material passes below the rolling part 915. When the soft material is conveyed to below the compression block 911 on the conveying belt 1, the telescopic cylinder 913 can be started to push the sliding rod 910 to fall from the falling opening 99 and press on the soft material, and then the telescopic cylinder 913 drives the sliding rod 910 to move rightwards in the lower sliding groove 94 at a speed consistent with the speed of the conveying belt 1. Then the compression roller 9153 is started to descend, and the compression roller 9153 is driven to rotate along the rotating sleeve 9152 under the driving action of the conveying belt 1, so as to roll and flatten the soft material. At this time, the compression block 911 can press the soft material to ensure that the soft material moves synchronously with the conveying belt 1 without stagnation during the rolling and flattening process. When the sliding rod 910 is moved to the inclined plate 96 by the telescopic cylinder 913, the left end of the soft material will be separated from the compression roller 9153. At this time, the sliding rod 910 will rise along the inclined plate 96 to release the pressing on the soft material. The sliding rod 910 will lift the swing plate 97 during the rising process along the inclined plate 96 until the sliding rod 910 rises to the top of the inclined plate 96. At this time, the swing plate 97 will automatically fall to keep horizontal under the action of gravity. Then the telescopic cylinder 913 can be started to drive the sliding rod 910 to slide along the upper sliding groove 95, quickly pass through the swing plate 97 and the partition plate 92, and move to the falling opening 99 to perform the pressing operation on the next piece of soft material. The compression roller 9153 will also quickly lift up and then descend to roll and flatten the next group of soft materials, and the above operation is repeated to realize the uninterrupted flattening operation on each group of soft materials. Meanwhile, in the unmanned stacking operation of the sheet material, the conveying belt 1 can also convey the sheet material in the reverse direction, and the negative pressure suction head 6 is used to stack the sheet material on the storage rack 4. During the stacking operation, the sliding rod 910 can be operated in the upper sliding groove 95, so that the compression block 911 is suspended. Then the compression roller 9153 is operated to rise and suspend, and the sheet material can be conveyed from the conveying belt 1 to the negative pressure suction head 6. Then the negative pressure suction head 6 is repeatedly worked to adsorb and grasp the sheet material to the storage rack 4 for stacking operation.

[0031] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A sheet material conveying device with adaptive adsorption function, characterized in that: The conveying device includes a conveyor belt (1), a hanging rail (2), a telescopic frame (3), a storage rack (4), a mounting frame (5), negative pressure suction heads (6), auxiliary components (7), a switching component (8), and a leveling component (9). The hanging rail (2) is fastened to the left side of the conveyor belt (1), the telescopic frame (3) is slidably connected to the hanging rail (2), the storage rack (4) is located below the hanging rail (2), the mounting frame (5) is fastened to the lower end of the telescopic frame (3), and the negative pressure suction heads (6) are arranged in multiple arrays and fastened to the mounting frame (9). On the mounting frame (5), the auxiliary component (7) is located around the negative pressure suction head (6) and connected to the negative pressure suction head (6). The auxiliary component (7) is slidably connected to the negative pressure suction head (6). The switching component (8) is located on the auxiliary component (7). When the auxiliary component (7) moves upward, the switching component (8) automatically cuts off the connection between the auxiliary component (7) and the negative pressure suction head (6). The leveling component (9) is located on the frame on both sides of the conveyor belt (1) and levels the sheet material by following the synchronous movement of the conveyor belt (1).

2. The sheet material conveying device with adaptive adsorption function according to claim 1, characterized in that: The auxiliary component (7) includes a slot (71), a sliding ring frame (72), an adsorption ring (73), an adsorption port (74), an annular tube (75), a plastic air tube (76), and a driving component (77). The slot (71) is located around the negative pressure suction head (6). The sliding ring frame (72) is slidably connected to the slot (71). The adsorption ring (73) is fastened to the bottom of the sliding ring frame (72). The adsorption ports (74) are arranged in an equidistant annular array at the bottom of the adsorption ring (73). The annular tube (75) is fastened to the periphery of the negative pressure suction head (6). The annular tube (75) is made of metal and is connected to the negative pressure suction head (6). The plastic air tube (76) is connected between the annular tube (75) and the adsorption ring (73). The driving component (77) is located between the mounting frame (5) and the sliding ring frame (72).

3. The sheet material conveying device with adaptive adsorption function according to claim 2, characterized in that: The number of plastic air tubes (76) is the same as the number of adsorption ports (74), and they are arranged in a ring-shaped equidistant array on the ring tube (75) and the adsorption ring (73), and the connection between the plastic air tube (76) and the adsorption ring (73) is located directly above the adsorption port (74).

4. The sheet material conveying device with adaptive adsorption function according to claim 3, characterized in that: The drive unit (77) includes a connecting rod (771) and a pneumatic push rod (772); the connecting rod (771) is fastened to the sliding ring frame (72), and the connecting rod (771) passes through the mounting frame (5) and is slidably connected thereto; the pneumatic push rod (772) is fastened to the mounting frame (5), and the output end of the pneumatic push rod (772) is fastened to the lower part of the bend at the end of the connecting rod (771).

5. A sheet material conveying device with adaptive adsorption function according to claim 4, characterized in that: The switching assembly (8) includes an extension tube (81), a vent (82), a rotating tube (83), a telescopic sleeve (84), a sealing ball (85), an elastic element (86), teeth (87), and a toothed plate (88); the extension tube (81) is fastened to the annular tube (75), the vent (82) is eccentrically opened on the extension tube (81), the extension tube (81) is connected to the annular tube (75) through the vent (82), the rotating tube (83) is sealed and rotatably connected to the extension tube (81), and the telescopic sleeve (84) is fastened inside the rotating tube (83). The telescopic sleeve (84) is eccentrically connected to the rotating tube (83), the sealing ball (85) is slidably connected to the telescopic sleeve (84), the elastic element (86) is located between the telescopic sleeve (84) and the sealing ball (85), and one end of the elastic element (86) is fastened to the sealing ball (85), and the other end is fastened to the telescopic sleeve (84). The teeth (87) are arranged in a ring around the rotating tube (83). The tooth plate (88) is fastened to the sliding ring frame (72), and the tooth plate (88) meshes with the teeth (87). The plastic air tube (76) is connected to the rotating tube (83).

6. A sheet material conveying device with adaptive adsorption function according to claim 5, characterized in that: The maximum distance that the sliding ring frame (72) can rise in the slot (71) section is one-quarter of the circumference of the rotating tube (83).

7. A sheet material conveying device with adaptive adsorption function according to claim 6, characterized in that: The leveling assembly (9) includes a rectangular frame (91), a partition (92), a bending plate (93), a lower slide (94), an upper slide (95), an inclined plate (96), a swing plate (97), a limiting block (98), a drop outlet (99), a sliding rod (910), a pressure block (911), a connecting frame (912), a telescopic cylinder (913), a support frame (914), and a rolling element (915). The rectangular frame (91) is fastened to the frames on both sides of the conveyor belt (1). The partition (92) is fastened to the rectangular frame (91) through the bending plate (93). The partition (92) divides the rectangular frame (91) into two slides with equal vertical distances. The upper slide (95) is above the partition (92), and the lower slide (94) is below the partition (92). The inclined plate (96) is fastened to the rectangular frame (91). 91) On the right side, the swing plate (97) is rotatably connected to the right side of the partition (92), the limiting block (98) is fastened to the right end of the partition (92), and the limiting block (98) is located below the axial connection between the swing plate (97) and the partition (92). The drop port (99) is located at the left end of the partition (92). The sliding rod (910) is slidably connected to the upper slide rail (95) and the lower slide rail (94). The pressure block (911) is located below the sliding rod (910). The connecting frame (912) is rotatably connected to the sliding rod (910). The output end of the telescopic cylinder (913) is fastened to the connecting frame (912). The support frame (914) is fastened to the two side frames of the conveyor belt (1). The right end of the telescopic cylinder (913) is rotatably connected to the support frame (914). The rolling element (915) is located on the left side of the rectangular frame (91).

8. A sheet material conveying device with adaptive adsorption function according to claim 7, characterized in that: The pressure block (911) is telescopically connected to the lower part of the sliding rod (910), and an elastic element (9111) is provided between the lower part of the pressure block (911) and the sliding rod (910).

9. A sheet material conveying device with adaptive adsorption function according to claim 8, characterized in that: The rolling element (915) includes a chute (9151), a rotating sleeve (9152), a pressure roller (9153), and an electric push rod (9154). The chute (9151) is located on the left side of the rectangular frame (91). The rotating sleeve (9152) is slidably connected to the chute (9151). The two ends of the pressure roller (9153) are rotatably connected to two sets of rotating sleeves (9152) respectively. The electric push rod (9154) is fastened to the rectangular frame (91), and the output end of the electric push rod (9154) is fastened to the rotating sleeve (9152).

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