Heat sealing machine for sealing feed bag

Abstract

The utility model belongs to the technical field of heat sealing machines, and discloses a feed bag sealing heat sealing machine which comprises a first moving platform, a first avoiding groove is formed in the middle of the first moving platform in the length direction of the first moving platform, first sliding grooves are formed in the two sides of the two ends of the first avoiding groove, and first sliding blocks are connected into the first sliding grooves in a sliding mode. A first connecting rod is fixed to the upper end of the first sliding block, first driving blocks are fixed to the upper end of the first connecting rod, the two first driving blocks on the same side of the first avoiding groove are in threaded connection to threads, in different rotating directions, of the first bidirectional lead screw, a first telescopic rod is fixed to the lower end of the first sliding block, and a first flattening block is fixed to the lower end of the first telescopic rod; the outer side of the first telescopic rod is sleeved with a first spring. The part, needing heat sealing, of the feed bag can be flattened, wrinkles at the sealing position are reduced, and the heat sealing effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat sealing machines, in particular to a heat sealing machine for sealing feed bags. Background Art

[0002] Feed is a general term for food for all animals raised by humans. In a narrower sense, feed refers primarily to food for animals raised in agriculture or animal husbandry. During the production process, feed is often packaged in feed bags. After filling the bags with feed, they need to be sealed, often using a heat sealer.

[0003] For example, Chinese patent publication number CN212829474U discloses a heat-sealing mechanism for ziplock bags, comprising a conveyor, a support plate, a transverse guide rail, a transverse pneumatic telescopic rod, a slider, a longitudinal pneumatic telescopic rod, a mounting plate, a plate frame, a support spring, a telescopic guide column, a cold air interface pipe, a side pressure roller, a fixed column, a nozzle, a heat-sealing wheel, and a heat-sealing strip. While this solution can reduce the temperature at the heat-sealing point of the ziplock bag to prevent adhesion, it lacks a means to flatten the bag, which can easily lead to loosening and wrinkling at the edges, affecting the effectiveness and quality of the heat-sealing process. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the utility model is to provide a heat sealing machine for sealing feed bags, which can flatten the part of the feed bag that needs to be heat sealed, reduce wrinkles at the sealing part, and improve the heat sealing effect.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A heat sealing machine for sealing feed bags, comprising:

[0007] The first movable platform, the middle of the first movable platform is provided with a first avoidance groove along its length, and first sliding grooves are provided on both sides of the two ends of the first avoidance groove, a first sliding block is slidably connected in the first sliding groove, the upper end of the first sliding block is fixedly connected to the first connecting rod, the upper end of the first connecting rod is fixedly connected to the first driving block, the two first driving blocks on the same side of the first avoidance groove are threadedly connected to threads of different rotation directions of the first bidirectional screw, the lower end of the first sliding block is fixedly connected to the first telescopic rod, the lower end of the first telescopic rod is fixedly connected to the first flattening block, and the outer side of the first telescopic rod is sleeved with a first spring;

[0008] The second movable platform, the second movable platform is located directly below the first movable platform, a second avoidance groove is opened in the middle of the second movable platform along its length, a second slide groove is opened on both sides of the two ends of the second avoidance groove, a second slider is slidably connected in the second slide groove, the lower end of the second slider is fixedly connected to the second connecting rod, the lower end of the second connecting rod is fixedly connected to the second driving block, the two second driving blocks on the same side of the second avoidance groove are threadedly connected to threads of different rotation directions of the second bidirectional screw, the upper end of the second slider is fixedly connected to the second telescopic rod, the upper end of the second telescopic rod is fixedly connected to the second flattening block, and the outer side of the second telescopic rod is sleeved with a second spring.

[0009] The above technical solution, its principle and technical effects:

[0010] The opening of the feed bag is placed between the first moving platform and the second moving platform, and the first moving platform and the second moving platform are driven to move toward each other, so that the first flattening block and the second flattening block move toward each other. Since the first flattening block and the second flattening block correspond to each other in design, the first flattening block and the second flattening block can squeeze the feed bag against each other. During the squeezing process, the first flattening block and the second flattening block have a force to squeeze each other through the cooperation of the first telescopic rod and the first spring, and the cooperation of the second telescopic rod and the second spring, while also avoiding excessive squeezing force, so that the feed bag cannot move between the first flattening block and the second flattening block. Then, the first bidirectional lead screw and the second bidirectional lead screw are driven by the driving source. The screw rotates, and the rotation of the first bidirectional screw causes the two first driving blocks to move in opposite directions, and the first driving block drives the first slider to move along the first slide groove, and the first slider drives the first flattening block to move along the direction of the first slide groove. At the same time, the rotation of the second bidirectional screw causes the two second driving blocks to move in opposite directions, and the second driving block drives the second slider to move along the second slide groove, and the second slider drives the second flattening block to move along the direction of the second slide groove, so that the first flattening blocks and the second flattening blocks that squeeze each other move together, and the four first flattening blocks and the four second flattening blocks move in four different directions together. Due to the friction between the first flattening block and the second flattening block, the part of the feed bag that needs to be heat-sealed is flattened.

[0011] Furthermore, the first chute is arranged to be inclined so that when the first sliding blocks at both ends of the first avoidance groove move in opposite directions, the distance between the two first sliding blocks at the same end of the first avoidance groove gradually increases;

[0012] The second sliding groove is arranged to be inclined, so that when the second sliding blocks at both ends of the second avoidance groove move in opposite directions, the distance between the two second sliding blocks at the same end of the second avoidance groove gradually increases.

[0013] Furthermore, a first cylinder is provided at the upper ends of both ends of the first mobile platform, and a telescopic end of the first cylinder is fixedly connected to the first mobile platform;

[0014] A second cylinder is provided at the lower ends of both ends of the second movable platform, and the telescopic end of the second cylinder is fixedly connected to the second movable platform.

[0015] Furthermore, the same end of the two first bidirectional lead screws is fixedly connected to a first synchronous pulley, a first synchronous belt is meshed between the two first synchronous pulleys, a second synchronous pulley is also meshed on the first synchronous belt, the second synchronous pulley is fixedly connected to the output end of the first motor, and the first motor is fixedly connected to the first mobile platform;

[0016] The same end of the two second bidirectional screws is fixedly connected to a third synchronous pulley, a second synchronous belt is engaged between the two third synchronous pulleys, a fourth synchronous pulley is also engaged on the second synchronous belt, the fourth synchronous pulley is fixedly connected to the output end of the second motor, and the second motor is fixedly connected to the second mobile platform.

[0017] Furthermore, a fifth synchronous pulley is engaged with the first synchronous belt, and a first adjusting block is rotatably connected to the side of the fifth synchronous pulley. A first limiting column is slidably connected to the first adjusting block, and a third spring is sleeved on the first limiting column at the lower end of the first adjusting block. The first limiting column is fixedly connected to the first rectangular frame, the first adjusting block is slidably connected to the first rectangular frame, and the first rectangular frame is fixedly connected to the first movable platform.

[0018] The second synchronous belt is also engaged with a sixth synchronous pulley, and the side of the sixth synchronous pulley is rotatably connected to a second adjusting block. The second adjusting block is penetrated by a second limiting column with a sliding connection, and the second limiting column located at the upper end of the second adjusting block is sleeved with a fourth spring. The second limiting column is fixedly connected in the second rectangular frame, the second adjusting block is slidably connected in the second rectangular frame, and the second rectangular frame is fixedly connected to the second movable platform.

[0019] Furthermore, a third sliding groove is provided on both sides of the first avoidance groove on the first movable platform, the third sliding groove is arranged perpendicular to the first avoidance groove, a third slider is slidably connected in the third sliding groove, the upper end of the third slider is fixedly connected to a third connecting rod, the upper end of the third connecting rod is fixedly connected to a first connecting sleeve, and the first connecting sleeve is rotatably connected to the first bidirectional screw;

[0020] A fourth sliding groove is provided on both sides of the second avoidance groove on the second movable platform. The fourth sliding groove is arranged perpendicular to the second avoidance groove. A fourth slider is slidably connected in the fourth sliding groove. The lower end of the fourth slider is fixedly connected to a fourth connecting rod. The lower end of the fourth connecting rod is fixedly connected to a second connecting sleeve. The second connecting sleeve is rotatably connected to the second bidirectional screw.

[0021] Furthermore, a first heating plate is provided in the first avoidance groove, and a third cylinder is provided at the upper ends of both ends of the first heating plate, the telescopic end of the third cylinder is fixedly connected to the first heating plate, the cylinder body of the third cylinder is fixedly connected to a first bracket, and the first bracket is fixedly connected to the first movable platform;

[0022] A second heating plate is provided in the second avoidance groove, and the second heating plate is located directly below the first heating plate. Fourth cylinders are provided at the lower ends of both ends of the second heating plate, and the telescopic end of the fourth cylinder is fixedly connected to the second heating plate. The cylinder body of the fourth cylinder is fixedly connected to the second bracket, and the second bracket is fixedly connected to the second mobile platform.

[0023] Furthermore, both ends of the first flattening block and the second flattening block are arc-shaped structures.

[0024] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0025] A fixed connection is a connection in which parts or components are fixed without any relative movement. There are two types of connections: detachable and non-detachable.

[0026] (1) A removable connection is a method of fastening components together using screws, splines, wedge pins, etc. This type of connection allows for disassembly during maintenance without damaging the components. However, the connectors used must be of the correct specifications (e.g., length of bolts, keys, wedge pins) and properly tightened.

[0027] (2) Non-detachable connections mainly refer to welding, riveting, and tenoning. Since they require forging, sawing, or oxygen cutting to disassemble during repair or replacement, spare parts generally cannot be reused. At the same time, when making connections, attention should be paid to workmanship quality, technical inspection, and remedial measures (such as calibration, polishing, etc.).

[0028] A threaded connection refers to a detachable connection in which the connected parts are connected together using a threaded part (or the threaded part of the connected parts).

[0029] A sliding connection is when two objects are in contact but not fixed and can slide relative to each other.

[0030] A rotational connection is a connection between parts that allows the parts to rotate relative to each other.

[0031] Beneficial effects of the utility model:

[0032] It can flatten the part of the feed bag that needs to be heat-sealed, reduce wrinkles at the seal, and improve the heat-sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0034] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0035] Figure 2 This is a top view of the first mobile platform structure of an embodiment of the utility model;

[0036] Figure 3 This is a bottom view of the first mobile platform structure of an embodiment of the utility model;

[0037] Figure 4 This is a top view of the second mobile platform structure of an embodiment of the utility model;

[0038] Figure 5 This is a bottom view of the second mobile platform structure of an embodiment of the utility model;

[0039] Figure 6 This is a partial structural diagram of the first motor of an embodiment of the present utility model;

[0040] Figure 7 It is a partial structural diagram of the second motor of an embodiment of the present utility model. DETAILED DESCRIPTION

[0041] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0043] According to the concept of this application, Figures 1 to 7The following describes an embodiment of a heat sealing machine for sealing feed bags. Specifically, the heat sealing machine for sealing feed bags is constructed as a split structure, which has a first movable platform 100, a second movable platform 200 and other components that cooperate with each other. The bag mouth of the feed bag is placed between the first movable platform 100 and the second movable platform 200, and the first movable platform 100 and the second movable platform 200 are driven to move toward each other, so that the first flattening block 108 and the second flattening block 208 move toward each other. Since the first flattening block 108 and the second flattening block 208 are designed to correspond one to one, the first flattening block 108 and the second flattening block 208 can squeeze the feed bag against each other. During the squeezing process, the first flattening block 108 and the second flattening block 208 have a mutual squeezing force through the cooperation between the first telescopic rod 107 and the first spring 109, and through the cooperation between the second telescopic rod 207 and the second spring 209. At the same time, the squeezing force is prevented from being too strong, so that the feed bag cannot move between the first flattening block 108 and the second flattening block 208. The first bidirectional lead screw 106 and the second bidirectional lead screw 206 are then driven to rotate by the driving source. The rotation of the first bidirectional lead screw 106 causes the two first driving blocks 105 to move in opposite directions. The first driving block 105 drives the first slider 103 to move along the first slide groove 102, and the first slider 103 drives the first flattening block 108 to move along the direction of the first slide groove 102. At the same time, the rotation of the second bidirectional lead screw 206 causes the two second driving blocks 205 to move in opposite directions. The second driving block 205 drives the second slider 203 to move along the second slide groove 202, and the second slider 203 drives the second flattening block 208 to move along the direction of the second slide groove 202, so that the first flattening block 108 and the second flattening block 208 that squeeze each other move together, and the four first flattening blocks 108 and the four second flattening blocks 208 move together in four different directions. Due to the friction between the first flattening block 108 and the second flattening block 208, the part of the feed bag that needs to be heat-sealed is flattened.

[0044] like Figures 1 to 7 As shown, a heat sealing machine for sealing feed bags comprises:

[0045] The first movable platform 100 has a first avoidance groove 101 formed in the middle of the first movable platform 100 along its length, and first sliding grooves 102 are formed on both sides of both ends of the first avoidance groove 101, a first slider 103 is slidably connected in the first sliding groove 102, the upper end of the first slider 103 is fixedly connected to a first connecting rod 104, the upper end of the first connecting rod 104 is fixedly connected to a first driving block 105, the two first driving blocks 105 on the same side of the first avoidance groove 101 are threadedly connected to threads of different rotation directions of the first bidirectional lead screw 106, the lower end of the first slider 103 is fixedly connected to a first telescopic rod 107, the lower end of the first telescopic rod 107 is fixedly connected to a first flattening block 108, and a first spring 109 is sleeved on the outer side of the first telescopic rod 107;

[0046] The second movable platform 200 is located directly below the first movable platform 100. A second avoidance groove 201 is provided in the middle of the second movable platform 200 along its length. Second slide grooves 202 are provided on both sides of the two ends of the second avoidance groove 201. A second slider 203 is slidably connected in the second slide groove 202. The lower end of the second slider 203 is fixedly connected to a second connecting rod 204. The lower end of the second connecting rod 204 is fixedly connected to a second driving block 205. The two second driving blocks 205 on the same side of the second avoidance groove 201 are threadedly connected to threads of different rotation directions of the second bidirectional lead screw 206. The upper end of the second slider 203 is fixedly connected to a second telescopic rod 207. The upper end of the second telescopic rod 207 is fixedly connected to a second flattening block 208. A second spring 209 is sleeved on the outer side of the second telescopic rod 207.

[0047] When in use, the bag mouth of the feed bag is placed between the first moving platform 100 and the second moving platform 200, and the first moving platform 100 and the second moving platform 200 are driven to move toward each other, so that the first flattening block 108 and the second flattening block 208 move toward each other. Since the first flattening block 108 and the second flattening block 208 are designed to correspond to each other, the first flattening block 108 and the second flattening block 208 can squeeze the feed bag against each other. During the squeezing process, the first telescopic rod 107 cooperates with the first spring 109, and the second telescopic rod 207 cooperates with the second spring 209, so that the first flattening block 108 and the second flattening block 208 have a force to squeeze each other, while also avoiding excessive squeezing force, so that the feed bag cannot move between the first flattening block 108 and the second flattening block 208, and then the driving source drives the first bidirectional lead screw 106 and the second bidirectional lead screw 20 6 rotates, the rotation of the first bidirectional lead screw 106 causes the two first driving blocks 105 to move in opposite directions, the first driving block 105 drives the first slider 103 to move along the first slide groove 102, and the first slider 103 drives the first flattening block 108 to move along the direction of the first slide groove 102. At the same time, the rotation of the second bidirectional lead screw 206 causes the two second driving blocks 205 to move in opposite directions, the second driving block 205 drives the second slider 203 to move along the second slide groove 202, and the second slider 203 drives the second flattening block 208 to move along the direction of the second slide groove 202, so that the first flattening blocks 108 and the second flattening blocks 208 that squeeze each other move together, and the four first flattening blocks 108 and the four second flattening blocks 208 move together in four different directions. Due to the friction between the first flattening blocks 108 and the second flattening blocks 208, the part of the feed bag that needs to be heat-sealed is flattened.

[0048] Specifically, during the movement of the first flattening block 108 between the two ends of the first avoidance trough 101, the distance therebetween is continuously increased due to the guidance of the first chute 102, flattening the feed bag toward the two ends of the first avoidance trough 101. Simultaneously, during the movement of the two first flattening blocks 108 at the same end of the first avoidance trough 101, the distance therebetween is also increased due to the guidance of the first chute 102, flattening the feed bag toward the two sides of the first avoidance trough 101. During the movement of the second flattening block 208 between the two ends of the second avoidance trough 201, the distance therebetween is continuously increased due to the guidance of the second chute 202, flattening the feed bag toward the two ends of the second avoidance trough 201. Simultaneously, during the movement of the two second flattening blocks 208 at the same two ends of the second avoidance trough 201, the distance therebetween is also increased due to the guidance of the second chute 202, flattening the feed bag toward the two ends of the second avoidance trough 201. By cooperating with the first flattening block 108 and the second flattening block 208 which are pressed against each other, the portion of the feed bag that needs to be heat-sealed is finally flattened.

[0049] Furthermore, during the movement of the mutually squeezing first flattening block 108 and the second flattening block 208, there may be movement deviation, resulting in misalignment between the mutually squeezing first flattening block 108 and the second flattening block 208. As long as the corresponding first flattening block 108 and the second flattening block 208 can still squeeze the feed bag, the feed bag can be flattened by friction.

[0050] In one embodiment of the present invention, the first sliding groove 102 is arranged obliquely so that when the first sliding blocks 103 at both ends of the first avoidance groove 101 move in opposite directions, the distance between the two first sliding blocks 103 at the same end of the first avoidance groove 101 gradually increases;

[0051] The second sliding groove 202 is tilted so that when the second sliding blocks 203 at both ends of the second avoiding groove 201 move in opposite directions, the distance between the two second sliding blocks 203 at the same end of the second avoiding groove 201 gradually increases.

[0052] Specifically, during use, the first flattening block 108 between the two ends of the first avoidance trough 101 moves, and the distance therebetween increases due to the guidance of the first chute 102, thereby flattening the feed bag toward the two ends of the first avoidance trough 101. Simultaneously, the two first flattening blocks 108 at the same end of the first avoidance trough 101 move, and the distance therebetween also increases due to the guidance of the first chute 102, thereby flattening the feed bag toward the two sides of the first avoidance trough 101. During movement, the second flattening block 208 between the two ends of the second avoidance trough 201 moves, and the distance therebetween also increases due to the guidance of the second chute 202, thereby flattening the feed bag toward the two ends of the second avoidance trough 201. Simultaneously, the two second flattening blocks 208 at the same two ends of the second avoidance trough 201 move, and the distance therebetween also increases due to the guidance of the second chute 202, thereby flattening the feed bag toward the two sides of the second avoidance trough 201. By cooperating with the first flattening block 108 and the second flattening block 208 which are pressed against each other, the portion of the feed bag that needs to be heat-sealed is finally flattened.

[0053] In one embodiment of the present invention, a first cylinder 110 is provided at the upper ends of both ends of the first mobile platform 100, and the telescopic end of the first cylinder 110 is fixedly connected to the first mobile platform 100;

[0054] A second cylinder 210 is provided at the lower end of both ends of the second movable platform 200 , and the telescopic end of the second cylinder 210 is fixedly connected to the second movable platform 200 .

[0055] Specifically, during use, by driving the first cylinder 110 and the second cylinder 210 to extend, the first movable platform 100 and the second movable platform 200 can move toward each other, so that the first flattening block 108 and the second flattening block 208 squeeze the feed bag against each other.

[0056] In one embodiment of the present invention, the same end of the two first bidirectional lead screws 106 is fixedly connected to a first synchronous pulley 111, a first synchronous belt 112 is meshed between the two first synchronous pulleys 111, a second synchronous pulley 113 is also meshed on the first synchronous belt 112, the second synchronous pulley 113 is fixedly connected to the output end of the first motor 114, and the first motor 114 is fixedly connected to the first mobile platform 100;

[0057] The same end of the two second bidirectional screws 206 is fixedly connected to a third synchronous pulley 211, a second synchronous belt 212 is meshed between the two third synchronous pulleys 211, and a fourth synchronous pulley 213 is also meshed on the second synchronous belt 212. The fourth synchronous pulley 213 is fixedly connected to the output end of the second motor 214, and the second motor 214 is fixedly connected to the second mobile platform 200.

[0058] Specifically, during use, the first motor 114 drives the second synchronous pulley 113 to rotate, the second synchronous pulley 113 drives the first synchronous belt 112 to transmit, the first synchronous belt 112 drives the two first synchronous belts 112 to rotate, and the first synchronous belt 112 drives the first bidirectional lead screw 106 to rotate. The second motor 214 drives the fourth synchronous pulley 213 to rotate, the fourth synchronous pulley 213 drives the second synchronous belt 212 to transmit, the second synchronous belt 212 drives the two third synchronous pulleys 211 to rotate, and the third synchronous pulley 211 drives the second bidirectional lead screw 206 to rotate.

[0059] In one embodiment of the present invention, the first synchronous belt 112 is further engaged with a fifth synchronous pulley 115, and the side of the fifth synchronous pulley 115 is rotatably connected to a first adjustment block 116. The first adjustment block 116 is penetrated by a first limiting column 117 in a sliding connection. The first limiting column 117 at the lower end of the first adjustment block 116 is sleeved with a third spring 118. The first limiting column 117 is fixedly connected to a first rectangular frame 119. The first adjustment block 116 is slidably connected to the first rectangular frame 119. The first rectangular frame 119 is fixedly connected to the first mobile platform 100.

[0060] The second synchronous belt 212 is also engaged with a sixth synchronous pulley 215, and the side of the sixth synchronous pulley 215 is rotatably connected to a second adjusting block 216. The second adjusting block 216 is penetrated by a second limiting column 217 with a sliding connection. The second limiting column 217 located at the upper end of the second adjusting block 216 is sleeved with a fourth spring 218. The second limiting column 217 is fixedly connected in the second rectangular frame 219, and the second adjusting block 216 is slidably connected in the second rectangular frame 219. The second rectangular frame 219 is fixedly connected to the second mobile platform 200.

[0061] Specifically, during use, the rotation of the first bidirectional screw 106 causes the two first drive blocks 105 to move in opposite directions, and the first drive block 105 drives the first slider 103 to move along the first slide groove 102. Since the first slide groove 102 is inclined, the distance between the two first bidirectional screws 106 continues to increase. At this time, the fifth synchronous pulley 115 drives the first adjustment block 116 to move downward along the first limit column 117 under the pulling force of the first synchronous belt 112, and the third spring 118 is forced to contract. The elastic force of the third spring 118 causes the fifth synchronous pulley 115 and the first adjustment block 116 to be subjected to a reverse force, so that the first synchronous belt 112 remains in a taut state. The rotation of the second bidirectional lead screw 206 causes the two second drive blocks 205 to move in opposite directions, and the second drive block 205 drives the second slider 203 to move along the second slide groove 202. Since the second slide groove 202 is inclined, the distance between the two second bidirectional lead screws 206 continues to increase. At this time, the sixth synchronous pulley 215 drives the second adjustment block 216 to move downward along the second limiting column 217 under the pulling force of the second synchronous belt 212, and the fourth spring 218 is forced to contract. The elastic force of the fourth spring 218 causes the sixth synchronous pulley 215 and the second adjustment block 216 to be subjected to a reverse force, so that the second synchronous belt 212 remains in a taut state.

[0062] In one embodiment of the present invention, a third sliding groove 120 is provided on both sides of the first avoidance groove 101 on the first mobile platform 100. The third sliding groove 120 is arranged perpendicular to the first avoidance groove 101. A third slider 121 is slidably connected in the third sliding groove 120. The upper end of the third slider 121 is fixedly connected to a third connecting rod 122. The upper end of the third connecting rod 122 is fixedly connected to a first connecting sleeve 123. The first connecting sleeve 123 is rotatably connected to the first bidirectional screw 106.

[0063] A fourth sliding groove 220 is provided on both sides of the second avoidance groove 201 on the second movable platform 200. The fourth sliding groove 220 is arranged perpendicular to the second avoidance groove 201. A fourth slider 221 is slidingly connected in the fourth sliding groove 220. The lower end of the fourth slider 221 is fixedly connected to a fourth connecting rod 222. The lower end of the fourth connecting rod 222 is fixedly connected to a second connecting sleeve 223. The second connecting sleeve 223 is rotatably connected to the second bidirectional screw 206.

[0064] Specifically, during use, when the two first bidirectional screws 106 move away from each other, the first bidirectional screw 106 drives the first connecting sleeve 123 to move, the first connecting sleeve 123 drives the third connecting rod 122 to move, and the third connecting rod 122 drives the third slider 121 to move along the third sliding groove 120, while supporting the first bidirectional screw 106 and moving along with the first bidirectional screw 106. When the two second bidirectional screws 206 move away from each other, the second bidirectional screw 206 drives the second connecting sleeve 223 to move, the second connecting sleeve 223 drives the fourth connecting rod 222 to move, and the fourth connecting rod 222 drives the fourth slider 221 to move along the fourth sliding groove 220, while supporting the second bidirectional screw 206 and moving along with the second bidirectional screw 206.

[0065] In one embodiment of the present invention, a first heating plate 124 is provided in the first avoidance groove 101, and a third cylinder 125 is provided at the upper end of both ends of the first heating plate 124. The telescopic end of the third cylinder 125 is fixedly connected to the first heating plate 124, and the cylinder body of the third cylinder 125 is fixedly connected to the first bracket 126, which is fixedly connected to the first mobile platform 100;

[0066] A second heating plate 224 is provided in the second avoidance groove 201, and the second heating plate 224 is located directly below the first heating plate 124. A fourth cylinder 225 is provided at the lower ends of both ends of the second heating plate 224, and the telescopic end of the fourth cylinder 225 is fixedly connected to the second heating plate 224. The cylinder body of the fourth cylinder 225 is fixedly connected to the second bracket 226, and the second bracket 226 is fixedly connected to the second mobile platform 200.

[0067] Specifically, during use, when the feed bag is flattened, the third cylinder 125 drives the first heating plate 124 to move, and the fourth cylinder 225 drives the second heating plate 224 to move. The first heating plate 124 and the second heating plate 224 squeeze the feed bag against each other to heat-seal the feed bag.

[0068] In one embodiment of the present invention, both ends of the first flattening block 108 and the second flattening block 208 are arc-shaped structures. This design prevents the first flattening block 108 and the second flattening block 208 from having edges that damage the feed bag during movement.

[0069] Furthermore, with respect to the chute and slider involved in this application, the slider can only slide within the chute and cannot escape from the chute. Specifically, limit grooves can be provided on both sides of the chute, and limit blocks can be provided on both sides of the slider, so that the limit blocks slide within the limit grooves. Alternatively, a limit post can be provided on the slider for sliding connection, and the limit post can be fixedly connected to the chute.

[0070] Furthermore, the telescopic rod involved in the present application may specifically include a sleeve, in which the telescopic column is slidably connected, and the telescopic column cannot be separated from the sleeve. At the same time, the telescopic column cannot rotate in the sleeve.

[0071] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0072] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention.

Claims

1. A heat sealing machine for sealing feed bags, characterized in that: include: A first movable platform (100), a first avoidance groove (101) is provided in the middle of the first movable platform (100) along its length, first sliding grooves (102) are provided on both sides of the two ends of the first avoidance groove (101), a first slider (103) is slidably connected in the first sliding groove (102), the upper end of the first slider (103) is fixedly connected to a first connecting rod (104), the upper end of the first connecting rod (104) is fixedly connected to a first driving block (105), the two first driving blocks (105) on the same side of the first avoidance groove (101) are threadedly connected to threads of different rotation directions of the first bidirectional lead screw (106), the lower end of the first slider (103) is fixedly connected to a first telescopic rod (107), the lower end of the first telescopic rod (107) is fixedly connected to a first flattening block (108), and the outer side of the first telescopic rod (107) is sleeved with a first spring (109); The second movable platform (200) is located directly below the first movable platform (100), a second avoidance groove (201) is provided in the middle of the second movable platform (200) along its length, second sliding grooves (202) are provided on both sides of the two ends of the second avoidance groove (201), a second slider (203) is slidably connected in the second sliding groove (202), the lower end of the second slider (203) is fixedly connected to a second connecting rod (204), the lower end of the second connecting rod (204) is fixedly connected to a second driving block (205), the two second driving blocks (205) on the same side of the second avoidance groove (201) are threadedly connected to threads of different rotation directions of the second bidirectional lead screw (206), the upper end of the second slider (203) is fixedly connected to a second telescopic rod (207), the upper end of the second telescopic rod (207) is fixedly connected to a second flattening block (208), and the outer side of the second telescopic rod (207) is sleeved with a second spring (209).

2. A heat sealing machine for sealing feed bags according to claim 1, characterized in that: The first sliding groove (102) is tilted so that when the first sliding blocks (103) at both ends of the first avoidance groove (101) move in opposite directions, the distance between the two first sliding blocks (103) at the same end of the first avoidance groove (101) gradually increases; The second sliding groove (202) is arranged tilted so that when the second sliding blocks (203) at both ends of the second avoidance groove (201) move in opposite directions, the distance between the two second sliding blocks (203) at the same end of the second avoidance groove (201) gradually increases.

3. A heat sealing machine for sealing feed bags according to claim 1, characterized in that: A first cylinder (110) is provided at the upper ends of both ends of the first movable platform (100), and the telescopic end of the first cylinder (110) is fixedly connected to the first movable platform (100); A second cylinder (210) is provided at the lower ends of both ends of the second movable platform (200), and the telescopic end of the second cylinder (210) is fixedly connected to the second movable platform (200).

4. A heat sealing machine for sealing feed bags according to claim 1, characterized in that: The same end of the two first bidirectional screws (106) is fixedly connected to a first synchronous pulley (111), a first synchronous belt (112) is meshed between the two first synchronous pulleys (111), a second synchronous pulley (113) is also meshed on the first synchronous belt (112), the second synchronous pulley (113) is fixedly connected to the output end of the first motor (114), and the first motor (114) is fixedly connected to the first mobile platform (100); The same end of the two second bidirectional screws (206) is fixedly connected to a third synchronous pulley (211), a second synchronous belt (212) is meshed between the two third synchronous pulleys (211), a fourth synchronous pulley (213) is also meshed on the second synchronous belt (212), the fourth synchronous pulley (213) is fixedly connected to the output end of the second motor (214), and the second motor (214) is fixedly connected to the second mobile platform (200).

5. A heat sealing machine for sealing feed bags according to claim 4, characterized in that: The first synchronous belt (112) is also meshed with a fifth synchronous pulley (115), and the side of the fifth synchronous pulley (115) is rotatably connected to a first adjusting block (116), and the first adjusting block (116) is penetrated by a first limiting column (117) that is slidably connected, and the first limiting column (117) located at the lower end of the first adjusting block (116) is sleeved with a third spring (118), and the first limiting column (117) is fixedly connected in a first rectangular frame (119), and the first adjusting block (116) is slidably connected in the first rectangular frame (119), and the first rectangular frame (119) is fixedly connected to the first movable platform (100); The second synchronous belt (212) is also meshed with a sixth synchronous pulley (215), and the side of the sixth synchronous pulley (215) is rotatably connected to a second adjustment block (216), and the second adjustment block (216) is penetrated by a second limiting column (217) that is slidably connected, and the second limiting column (217) located at the upper end of the second adjustment block (216) is sleeved with a fourth spring (218), the second limiting column (217) is fixedly connected in a second rectangular frame (219), the second adjustment block (216) is slidably connected in the second rectangular frame (219), and the second rectangular frame (219) is fixedly connected to the second mobile platform (200).

6. A heat sealing machine for sealing feed bags according to claim 5, characterized in that: A third sliding groove (120) is provided on both sides of the first avoidance groove (101) on the first mobile platform (100), the third sliding groove (120) is vertically arranged with the first avoidance groove (101), a third slider (121) is slidably connected in the third sliding groove (120), the upper end of the third slider (121) is fixedly connected to a third connecting rod (122), the upper end of the third connecting rod (122) is fixedly connected to a first connecting sleeve (123), and the first connecting sleeve (123) is rotatably connected to the first bidirectional screw (106); The second movable platform (200) is provided with a fourth sliding groove (220) on both sides of the second avoidance groove (201), and the fourth sliding groove (220) is vertically arranged to the second avoidance groove (201). A fourth slider (221) is slidably connected in the fourth sliding groove (220), and the lower end of the fourth slider (221) is fixedly connected to a fourth connecting rod (222), and the lower end of the fourth connecting rod (222) is fixedly connected to a second connecting sleeve (223), and the second connecting sleeve (223) is rotatably connected to the second bidirectional screw (206).

7. The heat sealing machine for sealing feed bags according to claim 1, characterized in that: A first heating plate (124) is provided in the first avoidance groove (101), and a third cylinder (125) is provided at the upper ends of both ends of the first heating plate (124), the telescopic end of the third cylinder (125) is fixedly connected to the first heating plate (124), the cylinder body of the third cylinder (125) is fixedly connected to a first bracket (126), and the first bracket (126) is fixedly connected to the first mobile platform (100); A second heating plate (224) is provided in the second avoidance groove (201), and the second heating plate (224) is located directly below the first heating plate (124). A fourth cylinder (225) is provided at the lower ends of both ends of the second heating plate (224), and the telescopic end of the fourth cylinder (225) is fixedly connected to the second heating plate (224). The cylinder body of the fourth cylinder (225) is fixedly connected to a second bracket (226), and the second bracket (226) is fixedly connected to the second mobile platform (200).

8. The heat sealing machine for sealing feed bags according to claim 1, characterized in that: Both ends of the first flattening block (108) and the second flattening block (208) are arc-shaped structures.

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