Automatic sealing equipment

Abstract

The present invention proposes an automatic sealing device with reasonable structural design, easy operation and automatic sealing, comprising a frame, on which a sealing device for sealing a packaging bag is arranged, and on which a material receiving device for receiving and transporting the packaging bag is arranged, the material receiving device comprising a material receiving trough, the material receiving trough being provided with a cavity for accommodating the packaging bag, a first driving mechanism for driving the material receiving trough to transport the packaging bag is arranged on the frame, and a feeding mechanism for clamping the packaging bag in the material receiving trough and transporting it to the sealing device is arranged between the material receiving trough and the sealing device.

Description

Technical Field

[0001] The invention relates to the technical field of sealing equipment, in particular to an automatic sealing equipment. Background Art

[0002] Most of the food on the market now comes in small independent packages. This small package is not only clean and hygienic, but also the quantity of the small package can be eaten at one time. This can solve the problem of food spoilage and food waste caused by excessive contact with air after opening. The existing packaging bags are sealed by hand holding the packaging bag to be sealed on the sealing machine. This manual sealing method has low sealing efficiency, and the sealing position of each bag is different, which affects the appearance of the sealed bag. In addition, the temperature of the heat sealing plate itself is very high. During the manual sealing process, the operator's hands are easily touched by the heat sealing plate. If the operator operates improperly or is not focused, the operator's hands are easily scalded, which increases the danger of manual sealing. Summary of the invention

[0003] Therefore, in view of the above problems, the present invention proposes an automatic sealing device which has reasonable structural design, is easy to operate and can automatically seal.

[0004] In order to solve the above technical problems, the solution adopted by the present invention is: automatic sealing equipment, including a frame, on which a sealing device for sealing packaging bags is provided, the frame is provided with a material receiving device for receiving and transporting packaging bags, the material receiving device includes a material receiving trough, the material receiving trough is provided with a cavity for accommodating packaging bags, the frame is provided with a first driving mechanism for driving the material receiving trough to transport packaging bags, and a feeding mechanism for clamping the packaging bags in the material receiving trough and transporting them to the sealing device is provided between the material receiving trough and the sealing device.

[0005] Further improvement is that: the first driving mechanism includes a plurality of first slide rails arranged on the frame, a plurality of first sliding blocks cooperating with the slide rails are arranged at the lower end of the material receiving trough, and first pulleys are respectively arranged at both ends of the first slide rails on the frame, a first driving belt for driving the material receiving trough to slide is wound around the first pulley, a first driving block is fixedly arranged on the first driving belt, the first driving block is fixedly connected to the material receiving trough, and a first driving device for driving the material receiving trough to move is arranged on the frame.

[0006] A further improvement is that the sealing device includes a conveyor belt for conveying packaging bags arranged on the frame, two groups of sealing belt groups for clamping and sealing the packaging bags, the sealing belt groups include more than two driving wheels rotatably arranged on the frame, and sealing belts wound around the driving wheels, the two sealing belts are clamped together, a heating block for heating the sealing belts and a cooling block for cooling the sealing belts are arranged on the frame, a second driving device for driving the driving wheel to rotate, and a third driving device for driving the conveyor belt to transport are arranged on the frame.

[0007] A further improvement is that the feeding mechanism includes a support block, a first clamping block and a second clamping block rotatably arranged on the support block, the support block can be slidably arranged on the frame, the first clamping block and the second clamping block are provided with a clamping device that keeps the first clamping block and the second clamping block clamped at all times, and the frame is provided with a first opening and closing device for clamping or separating the first clamping block and the second clamping block, a fourth driving mechanism for driving the support block to move toward the sealing device, and a second opening and closing device for clamping or separating the first clamping block and the second clamping block in sequence according to the conveying direction of the first clamping block and the second clamping block.

[0008] A further improvement is that: the first opening and closing device includes a top block that can slide up and down and is set on the frame, the upper end of the top block gradually increases from top to bottom along the opening and closing direction of the first clamping block and the second clamping block, an opening for the top block to extend into is provided between the first clamping block and the second clamping block, and a fifth driving device for driving the top block to slide up and down is provided on the frame.

[0009] A further improvement is that: the second opening and closing device includes a limit block arranged on the first clamping block and a limit rod arranged on the frame, the limit block is provided with an inclined surface that can slide relative to the limit rod to separate the first clamping block and the second clamping block from each other, and the frame is provided with a sixth driving mechanism for driving the first clamping block and the second clamping block to transport the packaging bag between the two sealing belts and for making the inclined surface of the limit block slide along the free end of the limit rod to separate the first clamping block and the second clamping block from each other to release the packaging bag.

[0010] A further improvement is that the sixth driving mechanism includes a mounting plate, on which one or more sixth slide rails are arranged parallel to the conveying direction of the sealing belt, on which one or more sixth sliding blocks cooperating with the sixth slide rails are arranged, and on which the support block are arranged sixth pulleys at both ends of the sixth slide rails, respectively, and on which the sixth pulley is wound a sixth driving belt for driving the support block to slide, and on which a sixth driving block is fixedly arranged, the sixth driving block is fixedly connected to the support block, and on which the mounting plate is arranged a sixth driving device for driving the sixth driving belt to move.

[0011] A further improvement is that: the fourth driving mechanism includes a plurality of fourth slide rails arranged on the frame, a plurality of fourth sliding blocks matching the fourth slide rails are arranged on the mounting plate, fourth pulleys are respectively arranged at both ends of the fourth slide rails on the frame, a fourth driving belt for driving the mounting plate to slide is wound around the fourth pulley, a fourth driving block is fixedly arranged on the fourth driving belt, the fourth driving block is fixedly connected to the mounting plate, and a fourth driving device for driving the fourth driving belt to move is arranged on the frame.

[0012] A further improvement is that a bag clamping device for making the bag opening of the packaging bag point vertically upward is provided on the material receiving trough, and the bag clamping device includes a support block fixedly arranged on the outer wall of the material receiving trough, and a pushing block slidably arranged on the support block; a through hole is provided on the material receiving trough and penetrates one side wall of the material receiving trough, and the pushing block can be slidably arranged in the through hole; a first reset member for resetting the pushing block is provided between the pushing block and the support block; a buffer plate for preventing damage to the packaging bag is provided on one end of the pushing block located in the material receiving trough, an elastic member is provided between the buffer plate and the pushing block, and a seventh driving device for driving the pushing block to slide is provided on the support block.

[0013] A further improvement is that: the frame is provided with a bag-supporting device for keeping the bag opening of the packaging bag flat, the bag-supporting device includes a support rod and two support blocks that can be extended into the packaging bag to support the bag opening flat, the support rod can slide up and down and is arranged on the frame, the upper ends of the two support blocks can be rotatably arranged on the support rod, and a second reset member for bringing the support blocks closer to each other is arranged between the lower ends of the support blocks, the frame is provided with a guide plate for moving the lower ends of the two support blocks away from each other, the upper ends of the guide plate are respectively provided with guide inclined surfaces along the rotation direction of the two support blocks, and the frame is provided with an eighth driving mechanism for driving the support blocks to slide along the guide inclined surfaces.

[0014] By adopting the above technical solution, the beneficial effects of the present invention are: the present invention has the following advantages:

[0015] 1. The present invention can automatically seal the packaging bag, which can greatly improve the sealing efficiency compared with the original manual sealing method. At the same time, because there is no need to manually hold the packaging bag for sealing, it can completely avoid the situation where the operator is burned by high temperature, greatly improving safety. At the same time, it can ensure that the sealing position of each packaging bag is consistent, so that the appearance of the independent small package after sealing is better, which attracts consumers' purchasing desire.

[0016] 2. The present invention can be used in combination with other loading devices, so that the loaded packaging bags can fall into the receiving trough, so as to achieve one-step completion from bagging to sealing, reduce the number of operation steps from the filling of the packaging bags to the sealing, shorten the working hours, avoid the items packaged in the packaging bags from being exposed to the air for too long, and improve the packaging production efficiency.

[0017] 3. The bag clamping device in the present invention can keep the mouth of the packaging bag to be sealed vertically upward after it falls freely into the receiving trough. After the packaging bag falls into the receiving trough, the pushing block and the inner wall of the cavity of the receiving trough are close to each other to clamp the packaging bag, ensuring that the bag mouth of the packaging falling into the cavity of the receiving trough can be vertically upward, so as to ensure that the upper ends of the bag bodies on both sides of the packaging bag are flush when the first clamping block and the second clamping block clamp the packaging bag. At the same time, the buffer plate on the pushing block can buffer the clamping force when the pushing block clamps the packaging bag, thereby ensuring the integrity of the packaging bag and the items in the packaging bag.

[0018] 4. The bag-stretching device in the present invention can flatten the bag opening of the packaging bag before the first clamping block and the second clamping block clamp the packaging bag, so that the bag bodies on both sides of the bag opening of the packaging bag remain parallel to each other. When the first clamping block and the second clamping block clamp the packaging bag, the bag opening of the packaging bag will not be wrinkled, thereby ensuring the flatness of the bag opening after the packaging bag is sealed, making the packaging neat and beautiful, and attracting consumers' desire to buy. At the same time, the support blocks in the bag-stretching device can adjust the size of the support block's support distance by adjusting the position of the guide plate to adapt to packaging bags of different sizes, thereby ensuring the versatility of the equipment.

[0019] 5. In the present invention, magnet blocks that attract each other are arranged between the clamping ends of the first clamping block and the second clamping block to ensure the clamping force at both ends of the first clamping block and the second clamping block. At the same time, the clamping surfaces of the first clamping block and the second clamping block are serrated and engage with each other to increase the clamping area, thereby ensuring that the first clamping block and the second clamping block firmly clamp the packaging bag and transport the packaging bag to ensure smooth sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of an automatic sealing device according to an embodiment of the present invention;

[0021] Figure 2 is a front view structural schematic diagram of an automatic sealing device according to an embodiment of the present invention;

[0022] Figure 3 is a schematic side view of the structure of the automatic sealing device according to an embodiment of the present invention;

[0023] Figure 4 2 is a schematic diagram of the rear structure of the automatic sealing device according to an embodiment of the present invention;

[0024] Figure 5 It is a schematic structural diagram of a bag-supporting device in an automatic sealing device according to an embodiment of the present invention;

[0025] Figure 6 yes Figure 2 A partial cross-sectional view along line AA of the automatic sealing device of an embodiment of the invention;

[0026] Figure 7 yes Figure 3 A cross-sectional view along line BB in the automatic sealing device of an embodiment of the invention;

[0027] Figure 8 yes Figure 2 A cross-sectional view along the CC line of the automatic sealing device of the embodiment of the invention;

[0028] Fig. 9 yes Figure 2 A cross-sectional view along line DD in the automatic sealing device of an embodiment of the invention;

[0029] Fig.10 yes Figure 1 An enlarged view of the local structure at A in the automatic sealing device of the embodiment of the invention;

[0030] Fig.11 yes Figure 7 An enlarged view of the local structure at B in the automatic sealing device of the embodiment of the invention;

[0031] Fig.12 It is a structural schematic diagram of a feeding mechanism in an automatic sealing device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0033] refer to Figures 1 to 12The embodiment of the present invention discloses an automatic sealing device, comprising a frame 1, wherein the frame 1 is provided with a sealing device for sealing a packaging bag, wherein the sealing device comprises a conveyor belt 11 for conveying packaging bags, and two sealing belt groups for clamping and sealing the packaging bags, wherein the sealing belt group comprises two transmission wheels 121 rotatably arranged on the frame 1, and a sealing belt 122 wound around the transmission wheel 121, wherein a first slide groove 123 is arranged on the frame 1, and a first mounting block 124 is slidably arranged in the first slide groove 123, wherein the transmission wheel 121 is rotatably arranged on the first mounting block 124, and the first mounting block 124 can be fixed at different positions in the first slide groove 123 by bolts to adjust the tightness of the sealing belt 122, and the two sealing belts 122 are clamped together, and a heating block 13 for heating the sealing belt and a cooling block 14 for cooling the sealing belt are arranged on the frame 1, wherein the heating The hot block 13 and the cooling block 14 are in direct contact with the sealing belt 122 for heat conduction. The transmission ends of the two sealing belts 122 are respectively provided with conveyor belts 125 for conveying the sealed packaging bags. The frame 1 is provided with a second transmission wheel 126. One end of the conveyor belt 125 is wound around the transmission wheel 121, and the other end is wound around the second transmission wheel 126. The frame 1 is provided with a second slide groove 127. A second mounting block 128 can be slidably arranged in the second slide groove 127. The second transmission wheel 126 can be rotatably arranged on the second mounting block 128. The second mounting block 128 can be fixed at different positions in the second slide groove 127 by bolts to adjust the tightness of the conveyor belt 125. The two conveyor belts 125 are clamped together to clamp the sealed packaging bags. The frame 1 is provided with a second driving device for driving the transmission wheel 121 to rotate and a third driving device for driving the conveyor belt 11 to transmit. The second driving device is a second motor (not shown in the figure), the housing of the second motor is fixedly arranged on the frame 1, and the rotating shaft of the second motor is fixedly connected to the transmission wheel shared by the sealing belt 122 and the conveyor belt 125. The third driving device is a third motor (not shown in the figure), the housing of the third motor is fixedly arranged on the frame 1, and the rotating shaft of the third motor is fixedly connected to the conveyor roller of the conveyor belt 11.

[0034] The frame 1 is provided with a receiving device for receiving and transporting packaging bags, the receiving device includes a receiving trough 15, the receiving trough 15 is provided with a cavity 151 for accommodating packaging bags, and the frame 1 is provided with a first driving mechanism for driving the receiving trough 15 to transport packaging bags. The first driving mechanism includes a first slide rail 152 provided on the frame 1, a first slider 153 cooperating with the slide rail is provided at the lower end of the receiving trough 15, and first pulleys 154 are provided at both ends of the first slide rail 152 on the frame 1, a first driving belt 155 for driving the receiving trough 15 to slide is wound around the first pulley 154, a first driving block 156 is fixedly provided on the first driving belt 155, and the first driving block 156 is fixedly connected to the receiving trough 15, and the frame 1 is provided with a first driving device for driving the receiving trough 15 to move. The first driving device is a first motor 157, the shell of the first motor 157 is fixedly arranged on the frame 1, the rotating shaft of the first motor 157 is fixedly connected to the first pulley 154, the first motor 157 rotates to drive the first pulley 154 to rotate, the rotation of the first pulley 154 drives the first driving belt 155 and the first driving block 156 to move, the movement of the first driving block 156 drives the receiving trough 15 to move along the first slide rail 152 to transport the sealed packaging bags. The frame 1 is provided with a first metal sensor 158 and a fifth metal sensor 159 at both ends of the first slide rail 152, respectively; the material receiving trough 15 is provided with a first sensing metal sheet 160 and a fifth sensing metal sheet 161 corresponding to the first metal sensor 158 and the fifth metal sensor, respectively; the first metal sensor 158 and the fifth metal sensor 159 are used to limit the maximum distance that the material receiving trough 15 moves on the first slide rail 152; the trough wall of the material receiving trough 15 is also provided with a photoelectric sensor 162 for detecting whether there is a packaging bag in the material receiving trough 15.

[0035] A feeding mechanism for clamping the packaging bag in the receiving trough 15 and conveying it to the sealing device is provided between the receiving trough 15 and the sealing belt 122. The feeding mechanism includes a support block 17, a first clamping block 171 and a second clamping block 172 rotatably provided on the support block 17, the support block 17 can be slidably provided on the frame 1, a ninth motor 173 for driving the first clamping block 171 and the second clamping block 172 to rotate is provided on the support block 17, a housing of the ninth motor 173 is fixedly provided on the support block 17, a fixing block 174 is fixedly provided on the rotating shaft of the ninth motor 173, and the first clamping block 171 and the second clamping block 172 are respectively provided on the support block 17. On both sides of the fixed block 174, the support block 17 is provided with a seventh metal sensor 175 for monitoring the horizontal position of the first clamping block 171 and the second clamping block 172, and the fixed block 174 is provided with a seventh sensing metal sheet 176 that cooperates with the seventh metal sensor. The first clamping block 171 and the second clamping block 172 are provided with a clamping device that keeps the first clamping block 171 and the second clamping block 172 clamped at all times, and the clamping device includes two sliding rods 177. The first clamping block 171, the second clamping block 172 and the fixed block 174 are provided with a seventh sensing metal sheet 176 that cooperates with the seventh metal sensor. The blocks 174 are respectively provided with openings for the slide bar 177 to pass through, the slide bar 177 is inserted into the openings of the first clamp block 171, the second clamp block 172 and the fixed block 174, the slide bar 177 is sleeved with a first return spring 178, and the two ends of the slide bar 177 are respectively provided with limit blocks 190 for preventing the slide bar 177 from escaping from the first clamp block 171 and the second clamp block 172, one end of the first return spring 178 abuts against the first clamp block 171 or the second clamp block 172, and the other end abuts against the first clamp block 171 or the second clamp block 172. On the limit block 190, the clamping surfaces of the first clamp block 171 and the second clamp block 172 are serrated and engage with each other, so as to facilitate clamping the packaging bag to be sealed. The frame 1 is provided with a first opening and closing device for clamping or separating the first clamp block 171 and the second clamp block 172, a fourth driving mechanism for driving the support block 17 to move toward the sealing device, and a second opening and closing device for clamping or separating the first clamp block 171 and the second clamp block 172 in sequence according to the conveying direction of the first clamp block 171 and the second clamp block 172.

[0036] The first opening and closing device includes a top block 18 which can slide up and down and is arranged on the frame 1. A guide groove 181 is vertically arranged on the frame 1 for limiting the top block 18 to move up and down. The top block 18 can slide up and down in the guide groove 181. The upper end of the top block 18 gradually increases from top to bottom along the opening and closing direction of the first clamping block 171 and the second clamping block 172. An opening 180 for the upper end of the top block 18 to extend into is formed between the first clamping block 171, the second clamping block 172 and the fixed block 174. The clamping ends of the first clamping block 171 and the second clamping block 172 are provided with magnet blocks 182 that attract each other. The magnet block 182 can strengthen the clamping force of the clamping ends of the first clamping block 171 and the second clamping block 172. A fifth driving device for driving the top block 18 to slide up and down is provided on the frame 1. The fifth driving device includes a fifth motor 183, the shell of the fifth motor 183 is fixedly arranged on the frame 1, and a first push block 184 is fixedly connected to the rotating shaft of the fifth motor 183. The first push block 184 is eccentrically arranged on the rotating shaft of the fifth motor 183. The first push block 184 pushes the top block 18 upward by rotating, so that the first clamping block 171 and the second clamping block 172 are separated from each other. A second metal sensor 186 is arranged below the first push block 184 on the frame 1. The first push block 184 is located at the maximum distance from the lower end of the top block 18, and a second induction metal block (not shown in the figure) matched with the second metal sensor 186 is embedded in the radial direction of the first push block 184. The second metal sensor is used to detect the resetting status of the first push block 184 to ensure that the first clamping block 171 and the second clamping block 172 have clamped the packaging bag to be sealed.

[0037] The second opening and closing device includes a limit block 190 arranged on the first clamping block 171 and a limit rod 191 arranged on the frame 1. The limit rod 191 is arranged on the frame 1 at the starting end of the sealing belt 122. The limit block 190 is provided with an inclined surface 192 which can slide relative to the limit rod 191 to separate the first clamping block 171 and the second clamping block 172 from each other. The frame 1 is provided with a sixth driving mechanism for driving the first clamping block 171 and the second clamping block 172 to transport the packaging bag between the two sealing belts 122 and for making the inclined surface 192 of the limit block 190 slide along the free end of the limit rod 191 to separate the first clamping block 171 and the second clamping block 172 from each other to release the packaging bag. The sixth driving mechanism includes a mounting plate 193, on which a sixth slide rail 194 is arranged parallel to the conveying direction of the sealing belt 122, and on the support block 17, a sixth slider 195 is arranged to cooperate with the sixth slide rail 194, and on the mounting plate 193, sixth pulleys 196 are arranged at both ends of the sixth slide rail 194, respectively, and a sixth driving belt 197 for driving the support block 17 to slide is wound around the sixth pulley 196, and a sixth driving block 198 is fixedly arranged on the sixth driving belt 197, and the sixth driving block 198 is fixedly connected to the support block 17, and the mounting plate 193 is provided with a sixth driving device for driving the sixth driving belt 197 to move. The sixth driving device is a sixth motor 199, the shell of the sixth motor 199 is fixedly arranged on the mounting plate 193, the rotating shaft of the sixth motor 199 is fixedly connected to the sixth pulley 196, the support block 17 is provided with a sixth metal sensor 201 for limiting the maximum sliding distance of the sixth slider 195 on the sixth slide rail 194, and the mounting plate 193 is provided with a sixth sensing metal sheet 202 used in conjunction with the sixth metal sensor 201.

[0038] The fourth driving mechanism includes two fourth slide rails 210 arranged on the frame 1, two fourth sliders 211 respectively matched with the two fourth slide rails 210 are arranged on the mounting plate 193, fourth pulleys 212 are respectively arranged at both ends of the fourth slide rails 210 on the frame 1, a fourth driving belt 213 for driving the mounting plate 193 to slide is wound around the fourth pulley 212, a fourth driving block 214 is fixedly arranged on the fourth driving belt 213, and the fourth driving block 214 is fixedly connected to the mounting plate 193, a fourth driving device for driving the fourth driving belt 213 is arranged on the frame 1, and the fourth The fourth driving device is a fourth motor 215, the shell of the fourth motor 215 is fixedly arranged on the frame 1, the rotating shaft of the fourth motor 215 is fixedly connected to the fourth pulley 212, and the frame 1 is provided with a conveying plate 216 for lifting the packaging bag when the first clamping block and the second clamping block are clamping the packaging bag and conveying it toward the sealing belt 122, so as to prevent the items inside the packaging bag from escaping from the clamping of the first clamping block 171 and the second clamping block 172 due to excessive weight. The feeding end of the conveying plate 216 is close to the first clamping block 171 and the second clamping block 172, and the discharging end of the conveying plate 216 is connected to and flush with the conveyor belt 11. After the first clamping block 171 and the second clamping block 172 clamp the packaging bag to be sealed, the rotating shaft of the ninth motor 173 drives the fixing block 174 and the first clamping block 171 and the second clamping block 172 to rotate 90 degrees toward the sealing belt 122, and then the fourth motor 215 drives the fourth driving belt 213 and the fourth driving block 214 to move, and the fourth driving block 214 drives the mounting plate 193 to move along the fourth slide rail 210 toward the sealing belt 122. When the limiting block 190 on the first clamping block 171 moves to the free end of the limiting rod 191, the sixth motor 199 drives the sixth driving belt 197 and the sixth driving block 198 to move. The sixth driving block 198 drives the supporting block 17 and the first clamping block 171 and the second clamping block 172 along the sixth slide rail 194 to the conveying direction of the conveyor belt 11, and transports the packaging bag between the two sealing belts 122. At the same time, the limiting block 190 moves with the movement of the first clamping block 171, and the inclined surface 192 on the limiting block 190 slides along the free end of the limiting rod 191. Under the action of the free end of the limiting rod 191, the limiting block 190 drives the first clamping block 171 to move away from the second clamping block 172, so that the first clamping block 171 is separated from the second clamping block 172, so as to release the packaging bag to be sealed and allow the sealing belt 122 to clamp and take it away for sealing.

[0039] The receiving trough 15 is provided with a bag clamping device for making the bag mouth of the packaging bag vertically upward, and the bag clamping device includes a support block 220 fixedly arranged on the outer wall of the receiving trough 15, and a pushing block 221 slidably arranged on the support block 220. A through hole is opened on the receiving trough 15 and penetrates through one side wall of the receiving trough 15. The pushing block 221 can be slidably arranged in the through hole. A first reset member for resetting the pushing block 221 is provided between the pushing block 221 and the support block 220. The reset member is a second reset spring 223. One end of the second reset spring 223 is fixedly arranged on the support block 220, and the other end is fixedly arranged on the support block 220. One end is arranged on the pushing block 221, and a buffer plate 224 for preventing damage to the packaging bag is arranged on one end of the pushing block 221 located in the receiving groove 15, and an elastic member is arranged between the buffer plate 224 and the pushing block 221, and the elastic member is a plurality of third springs 225, one end of the third spring 225 is fixedly arranged on the pushing block 221, and the other end is arranged on the buffer plate 224, and a seventh driving device for driving the pushing block 221 to slide is arranged on the support block 220, and the seventh driving device includes a seventh motor 226, and the housing of the seventh motor 226 is fixedly arranged on the On the support block 220, a second push block 227 for driving the push block 221 to slide is fixedly connected to the rotating shaft of the seventh motor 226, and the second push block 227 is eccentrically arranged on the rotating shaft of the seventh motor 226. A second rotating wheel 228 is arranged between the second push block 227 and the push block 221, and the second rotating wheel 228 can be rotatably arranged on the push block 221. The second push block 227 drives the second rotating wheel 228 and the push block 221 to slide along the through hole by rotating, and the arrangement of the second rotating wheel 228 can avoid the second push block 227 and the push block 221 from sliding. To reduce wear and increase the service life of parts, the frame 1 is provided with a third metal sensor 229, and a third sensing metal block (not shown in the figure) matched with the third metal sensor 229 is radially embedded along the second push block 227 at the maximum distance between the second push block 227 and the second rotating wheel 228. The third metal sensor 229 is used to detect the resetting status of the second push block 227 to ensure that the packaging bag to be sealed can fall into the bottom of the cavity 151 of the receiving trough 15 so that the pushing block 221 slides along the through hole to clamp the packaging bag between the pushing block 221 and the inner groove wall of the receiving trough 15.

[0040] The frame 1 is provided with a bag-supporting device for keeping the bag opening of the packaging bag flat, and the bag-supporting device includes a support rod 230 and two support blocks 231 that can be inserted into the packaging bag to support the bag opening flat. The support rod 230 can slide up and down and is arranged on the frame 1. The support blocks 231 are arranged above the receiving chute 15. The support blocks 231 are close to each other. The upper ends of the two support blocks 231 can be rotatably arranged on the support rod 230 respectively. A second reset member for bringing the support blocks 231 closer to each other is arranged between the lower ends of the support blocks 231. The second reset member is a second reset spring 223 (in the figure). The two ends of the second return spring 223 are respectively fixedly arranged on the two support blocks 231, and the frame 1 is provided with a guide plate 232 for moving the lower ends of the two support blocks 231 away from each other. The installation position of the guide plate 232 and the frame 1 can be adjusted up and down. The guide plate 232 is provided with an installation slot (not shown in the figure), and the frame 1 is provided with a mounting hole. A fastening bolt is passed between the installation slot and the mounting hole. The installation position of the guide plate 232 is adjusted up and down by the corresponding position of the installation slot and the mounting hole to adjust the distance between the mounting plate 193 and the support block 231. The upper end of the guide plate 232 is provided with a guide slope 233 along the rotation direction of the two support blocks 231, and the lower end of the support block 231 can slide along the guide slope 233 and flip to the opposite sides, so that the distance between the lower ends of the support blocks 231 is increased, and the protrusion 234 at the lower end of the support block 231 extends into the packaging bag to tighten the bag opening of the packaging bag to both sides so that the bag opening of the packaging bag remains flat. The frame 1 is provided with an eighth driving mechanism for driving the support block 231 to slide along the guide slope 233, and the eighth driving mechanism includes an eighth slide rail 235 vertically arranged on the frame 1. An eighth slider 236 is provided on the eighth slide rail 235, the support rod 230 is fixedly provided on the eighth slider 236, an eighth driving device for driving the eighth slider 236 to slide up and down is provided on the frame 1, the eighth driving device is an eighth motor 237, the housing of the eighth motor 237 is fixedly provided on the frame 1, a disk 238 is fixedly provided on the rotating shaft of the eighth motor 237, a connecting rod 239 is provided between the disk 238 and the eighth slider 236, one end of the connecting rod 239 is hinged on the disk 238, and the other end is hinged on the eighth slider 236. A fourth metal sensor 240 for detecting that the eighth slider moves to the highest position is provided on the frame 1 at the upper end of the eighth slide rail 235, and a fourth induction metal sheet 241 cooperating with the fourth metal sensor 240 is provided on the eighth slider 236.The rotation of the eighth motor 237 drives the disc 238 to rotate, and the rotation of the disc 238 drives the connecting rod 239 to move up and down. The up and down movement of the connecting rod 239 drives the eighth slider 236 to slide up and down along the eighth slide rail 235. The up and down sliding of the eighth slider 236 drives the support rod 230 and the support block 231 to move up and down. When the support block 231 slides downward, the lower end of the support block 231 will slide along the guide slope 233 of the guide plate 232, and flip to both sides under the action of the guide slope 233. The greater the sliding distance of the lower end of the support block 231 along the guide slope 233, the greater the distance between the lower ends of the two support blocks 231. Adjusting the moving position between the support block 231 and the guide plate 232 can adjust the support distance of the support block 231 to be suitable for packaging bags of different calibers.

[0041] The frame 1 is provided with a controller 250 for controlling the movement of parts, and the first motor 157, the second motor, the third motor, the fourth motor 215, the fifth motor 183, the sixth motor 199, the seventh motor 226, the eighth motor 237, the ninth motor 173, the first metal sensor 158, the second metal sensor 186, the third metal sensor 229, the fourth metal sensor 240, the fifth metal sensor 159, the sixth metal sensor 201, the seventh metal sensor 175, the photoelectric sensor 162, the heating block 13, and the cooling block 14 are respectively connected to the controller 250 by signal.

[0042] The use of automatic sealing equipment is as follows:

[0043] The controller 250 is programmed, the equipment is started, and all parts are reset to zero through the controller 250. The controller 250 controls the second motor and the third motor to rotate. The second motor rotates to drive the sealing belt 122 to move. The third motor rotates to drive the transmission wheel 121 connected to the second motor shaft and the conveyor belt 11 to move. At the same time, the controller 250 controls the heating block 13 to heat and the cooling block 14 to dissipate heat. The packaging bag to be sealed is put into the cavity 151 of the material receiving trough 15. The photoelectric sensor 162 on the wall of the material receiving trough 15 senses that there is a packaging bag in the material receiving trough 15, and transmits a sensing signal to the controller 250. The controller 250 immediately controls the first motor 157 to rotate clockwise to drive the first driving belt 155 to move the material receiving trough 15 toward the first clamping block 171 and the second clamping block 172 of the clamping mechanism. At the same time, the controller 250 controls the seventh motor 226 to rotate, and the seventh motor 226 rotates to drive the second push block 227 to rotate. The second push block 227 rotates to push the push block 221 to move along the through hole toward the cavity 151 of the material receiving trough 15. The packaging bag in the material receiving trough 15 is clamped by the relative movement of the push block 221 and the inner wall of the material receiving trough 15, so that the packaging bag keeps the bag opening facing upward and stands upright in the cavity 151 of the material receiving trough 15.

[0044] In the process of the receiving chute 15 moving toward the first clamping block 171 and the second clamping block 172, the controller 250 controls the fifth motor 183 to rotate, and the rotation of the fifth motor 183 drives the first pushing block 184 to rotate, and the first pushing block 184 rotates to push the top block 18 upward. In the process of the top block 18 moving upward, the top of the top block 18 extends into the opening 180 formed between the first clamping block 171, the second clamping block 172 and the fixed block 174 and continues to move upward. The upper end of the top block 18 gradually increases from top to bottom along the opening and closing direction of the first clamping block 171 and the second clamping block 172, and the first clamping block 171 and the second clamping block 172 are opened and closed. The blocks 171 and the second clamping blocks 172 are separated from each other under the pressure of the top block 18 and move along the slide bar 177 in the direction away from the fixed block 174. When the top block 18 moves to the highest position, the controller 250 controls the fifth motor 183 to stop rotating. At the same time, the upper end of the packaging bag in the receiving chute 15 enters between the first clamping block 171 and the second clamping block 172. After the fifth induction metal sheet 161 on the receiving chute 15 triggers the fifth metal sensor 159, the fifth metal sensor transmits an induction signal to the controller 250, and the controller 250 controls the first motor 157 to stop rotating.

[0045] The upper end of the packaging bag enters between the first clamping block 171 and the second clamping block 172, and at the same time, the controller 250 controls the eighth motor 237 to rotate, and the rotation of the eighth motor 237 drives the disk 238 to rotate, and the rotation of the disk 238 drives the connecting rod 239 and the eighth slider 236 to move downward, and the downward movement of the eighth slider 236 drives the support rod 230 and the two support blocks 231 to move downward, and when the two support blocks 231 move downward, the protrusion 234 at the lower end of the support block 231 extends into the bag opening of the packaging bag, and at the same time, the guide plate 232 The supporting block 231 is flipped to both sides along the guiding inclined surface 233 on the guiding plate 232, and the bag opening of the packaging bag is tightened to both sides so that the bag opening of the packaging bag remains flat. Then, the controller 250 controls the first pushing block 184 to rotate by controlling the fifth motor 183. After the second metal sensor 186 senses the second sensing metal block on the first pushing block 184, the second metal sensor transmits a sensing signal to the controller 250. The controller 250 controls the fifth motor 183 to stop rotating. After the upward thrust is removed, the top block 18 The first clamping block 171 and the second clamping block 172 move downward, and the first clamping block 171 and the second clamping block 172 are clamped together under the action of the first return spring 178. The packaging bag can be better clamped firmly under the action of the magnet block 182 at the clamping end of the first clamping block 171 and the second clamping block 172. At the same time, the controller 250 controls the eighth motor 237 and the disc 238 to rotate, and the eighth slider 236 drives the support block 231 to slide upward under the support of the connecting rod 239. After the lower ends of the two support blocks 231 are separated from the guide plate 232, they are moved upward under the action of the second return spring 223. They are folded close to each other, and after the fourth metal sensor senses the fourth sensing metal sheet 241 on the eighth slider 236, the fourth metal sensor transmits a sensing signal to the controller 250, and the controller 250 controls the eighth motor 237 to stop rotating. At the same time, the controller 250 controls the seventh motor 226 to rotate. The rotation of the seventh motor 226 drives the second push block 227 to rotate. The rotation of the second push block 227 pushes the pushing block 221 to move along the through hole toward the direction of the cavity 151 away from the receiving trough 15 to release the packaging bag.

[0046] After the pushing block 221 releases the packaging bag, the controller 250 controls the ninth motor 173 to rotate. The ninth motor 173 rotates clockwise to drive the fixing block 174 and the first clamping block 171 and the second clamping block 172 that clamp the packaging bag to rotate ninety degrees toward the sealing belt 122. The controller 250 controls the fourth motor 215 to rotate clockwise to drive the fourth driving belt 213 to move. The movement of the fourth driving belt 213 drives the mounting plate 193 and the first clamping block 171 and the second clamping block 172 to move toward the sealing belt 122. At the same time, the controller 250 controls the first motor 157 to rotate counterclockwise to drive the receiving trough 15 to reset. After the first metal sensor senses the first sensing metal sheet 160 on the receiving trough 15, the controller 250 controls the first motor 157 to stop rotating. After the limit block 190 on the first clamping block 171 hits the limit rod 191 set on the side of the sealing belt 122, the controller 250 controls the fourth motor 215 to stop rotating. The sixth motor 199 is controlled to rotate clockwise to drive the support block 17 and the first clamping block 171 and the second clamping block 172 with the packaging bag clamped therein to move in the sealing direction of the two sealing belts 122 to send the sealing end of the packaging bag between the two sealing belts 122 for sealing. The limit block 190 on the first clamping block 171 moves simultaneously with the first clamping block 171, and the inclined surface 192 on the limit block 190 slides along the free end of the limit rod 191 and is brought under the action of the limit rod 191. The first clamping block 171 is moved in a direction away from the second clamping block 172, so that the first clamping block 171 and the second clamping block 172 are separated from each other to release the packaging bag and the packaging bag is clamped and sealed by the sealing belt 122. The sealed end of the packaging bag is clamped by the sealing belt 122, and the lower end falls on the conveyor belt 11. The sealing is carried out under the joint drive of the transfer belt and the sealing belt 122. The sealed packaging bag is clamped and taken away by the conveyor belt 125 and continues to be transported by the transmission belt for subsequent processing.

[0047] During the process of releasing the packaging bag by the first clamp 171 and the second clamp 172 and the sliding of the sixth slider 195, after the sixth induction metal sheet 202 on the mounting plate 193 triggers the sixth metal sensor 201 on the support block 17, the controller 250 controls the sixth motor 199 to rotate counterclockwise to drive the first clamp 171 and the second clamp 172 to reset in the transmission direction away from the sealing belt 122, and then the controller 250 controls the fourth motor 215 to rotate counterclockwise to drive the first clamp 171 and the second clamp 172 to move and reset in the direction of the receiving trough 15, and at the same time, the controller 250 controls the ninth motor 173 to rotate counterclockwise by ninety degrees to make the first clamp 171 and the second clamp 172 horizontal, and after the first clamp 171 and the second clamp 172 move to above the top block 18, the controller 250 controls the fourth motor 215 to stop rotating.

[0048] The next packaging bag is continuously put into the receiving chute 15 , and the controller 250 controls the relevant components to repeat the above operation until all the packaging bags to be sealed are sealed, and then the equipment is closed.

[0049] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. Automatic sealing equipment, comprising a frame, on which a sealing device for sealing a packaging bag is arranged, characterized in that: The frame is provided with a receiving device for receiving and transporting packaging bags, the receiving device includes a receiving trough, the receiving trough is provided with a cavity for accommodating packaging bags, the frame is provided with a first driving mechanism for driving the receiving trough to transport packaging bags, a feeding mechanism for clamping the packaging bags in the receiving trough and transporting them to the sealing device is provided between the receiving trough and the sealing device, and the frame is provided with a bag-supporting device for keeping the bag opening of the packaging bag flat; The material receiving trough is provided with a bag clamping device for making the bag opening of the packaging bag point vertically upward, the bag clamping device includes a support block fixedly arranged on the outer wall of the material receiving trough, and a pushing block slidably arranged on the support block; a through hole is opened on the material receiving trough and penetrates one side wall of the material receiving trough, the pushing block can be slidably arranged in the through hole, a first reset member for resetting the pushing block is arranged between the pushing block and the support block, a buffer plate for preventing damage to the packaging bag is arranged on one end of the pushing block located in the material receiving trough, an elastic member is arranged between the buffer plate and the pushing block, and a seventh driving device for driving the pushing block to slide is arranged on the support block.

2. The automatic sealing device according to claim 1, characterized in that: The first driving mechanism includes a plurality of first slide rails arranged on the frame, a plurality of first sliding blocks cooperating with the slide rails are arranged at the lower end of the material receiving trough, first pulleys are respectively arranged at both ends of the first slide rails on the frame, a first driving belt for driving the material receiving trough to slide is wound around the first pulley, a first driving block is fixedly arranged on the first driving belt, the first driving block is fixedly connected to the material receiving trough, and a first driving device for driving the material receiving trough to move is arranged on the frame.

3. The automatic sealing device according to claim 1, characterized in that: The sealing device includes a conveyor belt for conveying packaging bags arranged on the frame, two groups of sealing belt groups for clamping and sealing the packaging bags, the sealing belt groups include more than two driving wheels rotatably arranged on the frame, and sealing belts wound around the driving wheels, the two sealing belts are clamped together, a heating block for heating the sealing belts and a cooling block for cooling the sealing belts are arranged on the frame, a second driving device for driving the driving wheel to rotate, and a third driving device for driving the conveyor belt to transport are arranged on the frame.

4. The automatic sealing device according to claim 3, characterized in that: The feeding mechanism includes a support block, a first clamping block and a second clamping block rotatably arranged on the support block, the support block can be slidably arranged on the frame, the first clamping block and the second clamping block are provided with clamping devices for keeping the first clamping block and the second clamping block clamped at all times, and the frame is provided with a first opening and closing device for clamping or separating the first clamping block and the second clamping block, a fourth driving mechanism for driving the support block to move toward the sealing device, and a second opening and closing device for clamping or separating the first clamping block and the second clamping block in sequence according to the conveying direction of the first clamping block and the second clamping block.

5. The automatic sealing device according to claim 4, characterized in that: The first opening and closing device includes a top block that can slide up and down on the frame, the upper end of the top block gradually increases from top to bottom along the opening and closing direction of the first clamping block and the second clamping block, an opening for the top block to extend into is provided between the first clamping block and the second clamping block, and a fifth driving device for driving the top block to slide up and down is provided on the frame.

6. The automatic sealing device according to claim 4, characterized in that: The second opening and closing device includes a limit block arranged on the first clamping block and a limit rod arranged on the frame, the limit block is provided with an inclined surface that can slide relative to the limit rod to separate the first clamping block and the second clamping block from each other, and the frame is provided with a sixth driving mechanism for driving the first clamping block and the second clamping block to transport the packaging bag between the two sealing belts and for making the inclined surface of the limit block slide along the free end of the limit rod to separate the first clamping block and the second clamping block from each other to release the packaging bag.

7. The automatic sealing device according to claim 6, characterized in that: The sixth driving mechanism includes a mounting plate, on which one or more sixth slide rails are arranged parallel to the conveying direction of the sealing belt, on which one or more sixth sliding blocks matching with the sixth slide rails are arranged, on which the support block is arranged, sixth pulleys are respectively arranged at both ends of the sixth slide rails, on which the sixth pulley is respectively arranged, a sixth driving belt for driving the support block to slide is wound, on which the sixth driving belt is fixedly provided a sixth driving block, which is fixedly connected to the support block, and on which the mounting plate is provided a sixth driving device for driving the sixth driving belt to move.

8. The automatic sealing device according to claim 7, characterized in that: The fourth driving mechanism includes a plurality of fourth slide rails arranged on the frame, a plurality of fourth sliding blocks matched with the fourth slide rails are arranged on the mounting plate, fourth pulleys are respectively arranged on the frame at both ends of the fourth slide rails, a fourth driving belt for driving the mounting plate to slide is wound around the fourth pulley, a fourth driving block is fixedly arranged on the fourth driving belt, the fourth driving block is fixedly connected to the mounting plate, and a fourth driving device for driving the fourth driving belt to move is arranged on the frame.

9. The automatic sealing device according to claim 1, characterized in that: The bag-supporting device includes a support rod and two support blocks that can be extended into the packaging bag to flatten the bag opening. The support rod can slide up and down and is arranged on the frame. The upper ends of the two support blocks can be rotatably arranged on the support rod. A second reset member for bringing the support blocks closer to each other is arranged between the lower ends of the support blocks. A guide plate for moving the lower ends of the two support blocks away from each other is arranged on the frame. The upper ends of the guide plates are respectively provided with guide inclined surfaces along the rotation direction of the two support blocks. The frame is provided with an eighth driving mechanism for driving the support blocks to slide along the guide inclined surfaces.

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