Automatic sealing device of packaging machine

Abstract

The invention relates to the technical field of mechanical automatic packaging, in particular to an automatic sealing device of a packaging machine, which comprises a bearing frame, a conveying assembly, a feeding auxiliary assembly and two automatic sealing devices. The bearing frame comprises two limiting plates, the conveying assembly comprises a conveying belt, and discharging notches are formed in the first ends of the limiting plates. The feeding auxiliary assembly comprises an assembling assembly and two pushing assemblies, the two pushing assemblies are both arranged in the middle of the assembling assembly and are in mirror symmetry in structure, and gaps exist between the pushing assemblies and the limiting plates. The second end of the limiting plate is provided with assembling notches, and the two automatic sealing devices correspond to the two assembling notches in position respectively. When the automatic sealing device is used, cargoes can be placed on the two sides of the top of the conveying belt, the feeding auxiliary assembly can push the two cargoes to be sealed to be away from each other, then the two cargoes are sealed at the same time through the two automatic sealing devices, and the automatic sealing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical automated packaging, and in particular to an automatic sealing device for a packaging machine. Background Art

[0002] A packaging machine is a mechanical device used to package items. It can automatically or semi-automatically package items to protect the items, improve the hygiene standards of the items, and facilitate the transportation and sales of the items. The sealing device on the packaging machine can directly fit the place where the goods need to be sealed to complete the automatic sealing. Due to human errors or machine vibrations, the goods are prone to deviation during sealing, resulting in sealing errors. Therefore, the sealing device of the packaging machine can usually fix the goods so that they will not move when sealing, avoid deviation, and ensure the accuracy of the sealing.

[0003] The Chinese patent document with publication number CN221938668U discloses a sealing device for a packaging machine, in which a motor 1 is fixedly installed on one side of two support plates, and the output ends of the two motors 1 are respectively connected to arc blocks. When the goods to be sealed are transported to the bottom of the hot melt plate by the conveyor belt, the arc block is pushed to move by the output end of motor 1, and then the clamping block is pushed close to the goods to be sealed by the output end of motor 2 until it is tightly attached to the outside of the goods to be sealed, thereby achieving the function of clamping and fixing the position to prevent the goods from tipping over and shaking.

[0004] The disadvantage of this device is that the arc blocks on both sides of the device must move close to each other to clamp the goods, so in the moving direction of the arc blocks, there can only be one goods waiting to be sealed on the top of the conveyor belt at a time. In other words, the device can only seal one goods at a time, and the automatic sealing efficiency of the device is low when it is working. Summary of the invention

[0005] The object of the present invention is to provide an automatic sealing device for a packaging machine, wherein goods can be placed on both sides of the top of the conveyor belt, and the feeding auxiliary component can push two goods to be sealed away from each other, and then two automatic sealers are used to complete the sealing work on the two goods at the same time, thereby improving the efficiency of automatic sealing.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic sealing device for a packaging machine, comprising: a supporting frame, the supporting frame comprising two limit plates; a conveying assembly, the conveying assembly comprising a conveyor belt, the two limit plates are respectively arranged on both sides of the width extension direction of the conveyor belt, and the first end of the limit plate is provided with a material discharge notch; a feeding auxiliary assembly, arranged above the conveyor belt and located between the two limit plates, the feeding auxiliary assembly comprising an assembly assembly and two pushing assemblies, the assembly assembly is fixedly connected to the supporting frame, the two pushing assemblies are both arranged in the middle of the assembly assembly, and the structures are mirror-symmetrical, and there is a gap between the pushing assembly and the limit plates; two automatic sealers, both arranged above the conveyor belt, the second end of the limit plate is provided with an assembly notch, and the two automatic sealers respectively correspond to the positions of the two assembly notches.

[0007] Preferably, the supporting frame also includes a base and two material spacer components, the limiting plate and the conveyor belt are both arranged above the base, the two material spacer components are respectively arranged on the side walls of the two limiting plates close to each other, and the structure is mirror-symmetrical, the assembly component includes a first assembly frame, the first assembly frame is arranged on the side close to the assembly notch, and the first assembly frame is connected to the base; the first assembly frame includes: two first connecting plates, there is a gap between the two first connecting plates; a second connecting plate, arranged between the two first connecting plates, and corresponding to the position of the assembly notch, the second connecting plate is fixedly connected to the two first connecting plates; a third connecting plate, arranged on the side of the second connecting plate away from the discharge notch, the top of the third connecting plate is fixedly connected to the two first connecting plates, and the bottom of the third connecting plate is fixedly connected to the base.

[0008] Preferably, the material separator assembly includes: a material separator box, which is arranged at the end of the limiting plate away from the material discharge notch and has a length less than the length of the limiting plate, and the material separator box is fixedly connected to the limiting plate; a plurality of material separator plates, a plurality of assembly holes are provided on the side wall of the material separator box away from the limiting plate, and a plurality of the material separator plates are respectively arranged in the plurality of assembly holes, the middle portion of the material separator plate is rotatably connected to the inner side wall of the assembly hole, the shape of the assembly hole matches the shape of the material separator plate, the top of the material separator plate is arc-shaped, and an avoidance groove is provided on the side wall of the limiting plate, the interior of the material separator box is connected to the interior of the avoidance groove, and the avoidance groove corresponds to the bottom position of the material separator plate; a first driving assembly, which is arranged on the inner side of the material separator box, and a plurality of the material separator plates are connected to the output end of the first driving assembly, and the first driving assembly is used to drive a plurality of the material separator plates to rotate.

[0009] Preferably, the first driving assembly includes: a plurality of first gears, respectively fixedly arranged on the side walls of a plurality of the partition plates close to the limiting plate, the first gears being incomplete gears; a plurality of second gears, all arranged on the inner side of the partition box, and corresponding one-to-one to the positions of the plurality of the first gears, the second gears meshing with the first gears for transmission; a transmission shaft, arranged on the inner side of the partition box, a plurality of the second gears are all sleeved on the transmission shaft, and fixedly connected to the transmission shaft, the first end of the transmission shaft being rotatably connected to the inner side wall of the partition box; a motor, the output end of the motor being fixedly connected to the second end of the transmission shaft, and the motor being fixedly connected to the inner side wall of the partition box.

[0010] Preferably, the assembly component also includes a second assembly frame, which is arranged on a side close to the material discharge notch, and a first end of the second assembly frame is provided with a material discharge positioning component, which is connected to the limiting plate, and the second end of the second assembly frame is connected to the first assembly frame; the second assembly frame includes: a first connecting frame, the two limiting plates are fixedly connected to the end of the first connecting frame away from the material discharge notch; a second connecting frame, the second connecting frame is an H-shaped structure, the second connecting frame is arranged between the two first connecting plates, the two first connecting plates are fixedly connected to the second connecting frame, and the second connecting frame is fixedly connected to the first connecting frame.

[0011] Preferably, the second assembly frame also includes a guide rod, which is arranged in the middle of the first connecting frame, and both ends are fixedly connected to the first connecting frame, and the length extension direction of the guide rod is the same as the width extension direction of the conveyor belt; the pushing assembly includes: a pushing plate, which has a U-shaped structure, and the open end of the pushing plate faces the limit plate, and the open end of the pushing plate is trumpet-shaped and has an arc-shaped guide surface; a second driving assembly is arranged on the top of the first connecting frame, and the second driving assembly includes an electric telescopic rod, which is fixedly connected to the first connecting frame, and the output end of the electric telescopic rod is fixedly connected to the first end of the transmission rod, and the second end of the transmission rod is fixedly connected to the middle part of the pushing plate, and the transmission rod has an L-shaped structure, and the middle part of the transmission rod is sleeved on the guide rod and can slide along the outer surface of the guide rod.

[0012] Preferably, there are two material discharge positioning assemblies, and the structures of the two material discharge positioning assemblies are mirror-symmetrical, and the material discharge positioning assemblies include: a material baffle plate, which has an L-shaped structure, and the first end of the material baffle plate is fixedly connected to the limit plate, and the material baffle plate includes a first positioning surface and a second positioning surface, the first positioning surface faces the material discharge notch, and the second positioning surface faces the first connecting plate, and there is a gap between the bottom surface of the material baffle plate and the conveyor belt; a first anti-collision plate is arranged on the first positioning surface and is detachably connected to the material baffle plate; a second anti-collision plate is arranged on the second positioning surface and is detachably connected to the material baffle plate; the second assembly frame also includes a third connecting frame, and the third connecting frame has an H-shaped structure, and the third connecting frame is arranged between the two material baffle plates, and the second ends of the two material baffle plates are fixedly connected to the third connecting frame, and the third connecting frame is fixedly connected to the first connecting frame.

[0013] Preferably, the conveyor belt is provided with a plurality of ring-shaped marks, which are divided into two groups and are respectively arranged at both ends of the width extension direction of the conveyor belt. The plurality of ring-shaped marks in the same group are arranged at equal intervals along the length extension direction of the conveyor belt. The ring-shaped mark is close to one end of the third connecting frame and is tangent to the side wall of the first anti-collision plate facing the discharge notch.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (i) When the present invention is in use, goods can be placed on both sides of the top of the conveyor belt, and the feeding auxiliary component can push the two goods to be sealed away from each other, and then the two automatic sealers complete the sealing work on the two goods at the same time, thereby improving the efficiency of automatic sealing.

[0015] (ii) The present invention also includes two material placement assemblies, which can assist workers in placing goods. The conveyor belt is provided with a plurality of circular marks, and when the goods are in the correct position, the bottom of the goods can completely cover the circular marks. Before the material separation assembly works, the worker can pre-calibrate the distance between two adjacent goods to avoid the situation where the material separation plate does not enter the gap between two adjacent goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axonometric view at one angle when the present invention is not in use; Figure 2 It is an axonometric view from another angle when the present invention is not in use; Figure 3 It is a top view when the present invention is not in use; Figure 4 is an axonometric view of the carrier frame of the present invention; Figure 5 It is an axonometric view of the limiting plate in the present invention; Figure 6 is an axonometric view of the spacer assembly of the present invention; Figure 7 for Figure 6 The enlarged view of point A in the middle; Figure 8 for Figure 6 The enlarged view of point B in the middle; Fig. 9 It is an axonometric view of the transmission assembly in the present invention; Fig.10 It is an axonometric view of the feeding auxiliary component in the present invention; Fig.11 is an axonometric view of the first assembly stand in the present invention; Fig.12 is an axonometric view of the second assembly stand in the present invention; Fig.13 It is an axonometric view of the pusher assembly in the present invention; Fig.14 It is an axonometric view of the automatic sealer of the present invention; Fig.15 It is an axonometric view of the material placement and positioning assembly in the present invention; Fig.16 Axonometric drawing when the present invention is used; Fig.17 A top view of the present invention after the pushing assembly pushes the goods toward the partition assembly; Fig.18 It is a top view of the present invention after the partition plate is rotated to a horizontal state.

[0017] Reference numerals include: 1-carrying frame, 11-limiting plate, 111-discharging gap, 112-assembly gap, 113-avoidance groove, 12-base, 13-spacer assembly, 131-spacer box, 1311-assembly hole, 132-spacer plate, 133-first drive assembly, 1331-first gear, 1332-second gear, 1333-drive shaft, 1334-motor, 2-transmission assembly, 21-conveyor belt, 22-circular mark, 3-feeding auxiliary assembly, 31-assembly assembly, 311-first assembly frame, 3111-first connecting plate, 3112-first Second connecting plate, 3113-third connecting plate, 312-second assembly frame, 3121-first connecting frame, 3122-second connecting frame, 3123-guide rod, 3124-third connecting frame, 32-pushing assembly, 321-pushing plate, 3211-arc guide surface, 322-second driving assembly, 3221-electric telescopic rod, 3222-transmission rod, 4-automatic sealer, 5-discharging positioning assembly, 51-blocking plate, 511-first positioning surface, 512-second positioning surface, 52-first anti-collision plate, 53-second anti-collision plate, 6-cargo. DETAILED DESCRIPTION

[0018] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0019] Embodiment 1

[0020] See also Figure 1-18 The present invention provides a technical solution: an automatic sealing device for a packaging machine, comprising a carrier 1, a transmission component 2, a feeding auxiliary component 3 and two automatic sealers 4. The carrier 1 comprises two limit plates 11, and the two ends of the limit plates 11 are respectively provided with a discharge notch 111 and an assembly notch 112, and the transmission component 2 comprises a conveyor belt 21, and the conveyor belt 21 is arranged between the two limit plates 11. The feeding auxiliary component 3 comprises an assembly component 31 and two pushing components 32, and the assembly component 31 is connected to the carrier 1 and provides support for the pushing component 32 and the automatic sealer 4, and the two automatic sealers 4 correspond to the positions of the two assembly notches 112 respectively.

[0021] When the present invention is in use, two workers can place the goods 6 to be sealed onto the conveyor belt 21 through the two discharge notches 111 respectively. When the goods 6 are transported by the conveyor belt 21 to a position away from the discharge notch 111 and between the pushing assembly 32 and the limit plate 11, the conveyor belt 21 stops working for the first time, and then the two pushing assemblies 32 work to push the two goods 6 away from each other, and the goods 6 approach the limit plate 11. Then the conveyor belt 21 continues to drive the goods 6 to move horizontally, and when the goods 6 move to just below the automatic sealer 4, the conveyor belt 21 stops working for the second time. At this time, the automatic sealer 4 works to automatically seal the top of the goods 6. When the sealing operation is completed, the conveyor belt 21 continues to work, driving the sealed goods 6 away from the automatic sealer 4, and then the sealed goods 6 can automatically leave the carrier 1 and be collected together. As the conveyor belt 21 continues to operate, whenever a cargo 6 moves between the pushing assembly 32 and the limiting plate 11, the worker immediately places the cargo 6 to be sealed onto the conveyor belt 21 again through the two discharge notches 111, thereby ensuring the continuity of the sealing work. Since the present invention can complete the sealing work for two cargoes 6 at the same time, the efficiency of automatic sealing is improved.

[0022] See also Figure 1-14 and Figure 16-18The carrier frame 1 also includes a base 12 and two spacer assemblies 13, and the two spacer assemblies 13 are respectively arranged on the side walls of the two limit plates 11 close to each other. The assembly assembly 31 includes a first assembly frame 311, and the first assembly frame 311 includes two first connecting plates 3111, a second connecting plate 3112 and a third connecting plate 3113. The second connecting plate 3112 can connect the two first connecting plates 3111 together, and the third connecting plate 3113 can connect the first connecting plate 3111 and the base 12 together. The second connecting plate 3112 and the limit plate 11 jointly provide support for the automatic sealer 4. When the pushing assembly 32 pushes the goods 6 to move, the goods 6 fits with the spacer assembly 13, and as the conveyor belt 21 continues to operate, the goods 6 will move to the position between the first connecting plate 3111 and the spacer assembly 13. At this time, the left and right sides of the goods 6 are respectively restricted by the first connecting plate 3111 and the material separation component 13, and the goods 6 cannot move left and right, ensuring that the goods 6 can move forward with the conveyor belt 21 to the bottom of the automatic sealer 4. When the goods 6 move to the bottom of the automatic sealer 4 and the conveyor belt 21 stops working for the second time, the material separation component 13 works to restrict the front and back sides of the goods 6, and the goods 6 are completely fixed, ensuring that the output end of the automatic sealer 4 can be aligned with the top of the goods 6, increasing the accuracy of the present invention in the sealing process.

[0023] See also Figure 1-14 and Figure 16-18 , the material separation assembly 13 includes a material separation box 131, a plurality of material separation plates 132 and a first driving assembly 133. The plurality of material separation plates 132 are respectively arranged in a plurality of assembly holes 1311. Driven by the pushing assembly 32, the goods 6 will fit with the material separation box 131. When the goods 6 at the front end of the conveyor belt 21 moves to just below the automatic sealer 4, the first driving assembly 133 drives the plurality of material separation plates 132 to rotate to a horizontal state at the same time, and the plurality of material separation plates 132 are respectively inserted between two adjacent goods 6 to ensure that all goods 6 maintain the same spacing. The front and rear sides of the goods 6 at the front end of the conveyor belt 21 are also respectively restricted by two material separation plates 132 to ensure that the goods 6 will not move. The top of the material separation plate 132 is arc-shaped, so the material separation plate 132 can smoothly enter the gap between two adjacent goods 6. The side wall of the limiting plate 11 is provided with an avoidance groove 113. When the material separator 132 rotates to a horizontal state, the bottom of the material separator 132 extends into the avoidance groove 113, and the limiting plate 11 does not restrict the rotation of the material separator 132. When the automatic sealer 4 completes the sealing work of the frontmost goods 6, the first driving assembly 133 drives a plurality of material separators 132 to rotate to a vertical state at the same time, and the material separators 132 no longer restrict the goods 6, and the remaining goods 6 can be moved to the bottom of the automatic sealer 4 in sequence.

[0024] See also Figure 1-14 and Figure 16-18, the first driving assembly 133 includes a plurality of first gears 1331, a plurality of second gears 1332, a transmission shaft 1333 and a motor 1334. The plurality of first gears 1331 are respectively connected to the plurality of material separators 132, the plurality of second gears 1332 are sleeved on the transmission shaft 1333, and the output end of the motor 1334 is connected to the transmission shaft 1333. When the first driving assembly 133 is working, if the motor 1334 rotates forward, it can drive the transmission shaft 1333 to rotate forward, and then drive the plurality of material separators 132 to rotate to a horizontal state through the engagement of the plurality of second gears 1332 and the plurality of first gears 1331. If the motor 1334 rotates in the reverse direction, it will eventually drive the plurality of material separators 132 to reset and rotate to a vertical state.

[0025] Embodiment 2

[0026] Based on Example 1, please refer to Figure 1-18 The assembly component 31 also includes a second assembly frame 312. The second assembly frame 312 is provided with a material placement assembly 5. The material placement assembly 5 can assist workers in placing goods 6. Before the spacer assembly 13 works, the worker can pre-correct the distance between two adjacent goods 6 to avoid the situation where the spacer plate 132 does not enter the gap between two adjacent goods 6. In this embodiment, the second assembly frame 312 includes a first connecting frame 3121 and a second connecting frame 3122. The second connecting frame 3122 is an H-shaped structure and is arranged between the two first connecting plates 3111. The second connecting frame 3122 and the limiting plate 11 are fixedly connected to the first connecting frame 3121, which increases the stability of the present invention. The second connecting frame 3122 can also prevent the two first connecting plates 3111 from deformation.

[0027] See also Figure 1-18, the second assembly frame 312 also includes a guide rod 3123, and the guide rod 3123 is fixedly arranged in the middle of the first connecting frame 3121. The pushing assembly 32 includes a pushing plate 321 and a second driving assembly 322, and the open end of the pushing plate 321 faces the limiting plate 11. The second driving assembly 322 is arranged at the top of the first connecting frame 3121, and the second driving assembly 322 includes an electric telescopic rod 3221 and a transmission rod 3222. When the pushing assembly 32 is working, the electric telescopic rod 3221 is shortened, which can drive the transmission rod 3222 to slide along the outer surface of the guide rod 3123, and then drive the pushing plate 321 to move toward the side close to the limiting plate 11. The pushing plate 321 has a U-shaped structure, so the goods 6 can smoothly enter the inner side of the pushing plate 321, and under the drive of the pushing plate 321, fit with the partition assembly 13. The open end of the push plate 321 is horn-shaped and is provided with an arc-shaped guide surface 3211. Even if the goods 6 deviate while following the conveyor belt 21, once the goods 6 contact the arc-shaped guide surface 3211, they can smoothly enter the inner side of the push plate 321. When the goods 6 are in contact with the spacer assembly 13, the electric telescopic rod 3221 extends, and drives the push plate 321 away from the limit plate 11 through the transmission rod 3222 until the goods 6 are completely separated from the push plate 321. Then the conveyor belt 21 works to drive the goods 6 to continue to move forward.

[0028] See also Figure 1-18 There are two material discharging positioning components 5, and the structures of the two material discharging positioning components 5 are mirror-symmetrical. The material discharging positioning component 5 includes a material baffle plate 51, a first anti-collision plate 52 and a second anti-collision plate 53. The material baffle plate 51 is an L-shaped structure. The material baffle plate 51 includes a first positioning surface 511 and a second positioning surface 512. The first anti-collision plate 52 is arranged on the first positioning surface 511, and the second anti-collision plate 53 is arranged on the second positioning surface 512. When the conveyor belt 21 stops working, the worker first takes a cargo 6 and places it on the conveyor belt 21, then fits the cargo 6 with the first anti-collision plate 52, and then moves the cargo 6 along the first anti-collision plate 52, and fits the cargo 6 with the second anti-collision plate 53, and finally lets go. Through this operation, the worker can pre-correct the spacing between two adjacent cargoes 6, and the gaps between two adjacent cargoes 6 can be guaranteed to be the same, avoiding the situation where the partition plate 132 does not enter the gap between two adjacent cargoes 6. The first anti-collision plate 52 and the second anti-collision plate 53 are both detachably connected to the material blocking plate 51, and can be removed and replaced when the first anti-collision plate 52 and the second anti-collision plate 53 are worn. The second assembly frame 312 also includes a third connecting frame 3124, and the third connecting frame 3124 is an H-shaped structure. The two ends of the material blocking plate 51 are fixedly connected to the third connecting frame 3124 and the limit plate 11 respectively, and the third connecting frame 3124 is fixedly connected to the first connecting frame 3121, which not only enhances the stability of the present invention, but also prevents the material blocking plate 51 from being deformed.

[0029] See also Figure 1-18 , a plurality of circular marks 22 are arranged on the conveyor belt 21, and the plurality of circular marks 22 are divided into two groups, which are arranged at both ends of the width extension direction of the conveyor belt 21. The plurality of circular marks 22 of the same group are arranged at equal intervals along the length extension direction of the conveyor belt 21, and the end of the circular mark 22 close to the third connecting frame 3124 is tangent to the side wall of the first anti-collision plate 52 facing the discharge notch 111. As the conveyor belt 21 rotates, when the circular mark 22 is tangent to both the first anti-collision plate 52 and the second anti-collision plate 53, the conveyor belt 21 stops working. At this time, the worker places the goods 6 on the conveyor belt 21, and corrects the distance between two adjacent goods 6 through the discharge positioning assembly 5. When the goods 6 are in the correct position, the bottom of the goods 6 can completely cover the circular mark 22. When the present invention is used, the worker can place the goods 6 through tactile feedback, and can also use vision to assist in judging whether the position of the goods 6 is correct, which further increases the accuracy of the present invention.

[0030] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic sealing device for a packaging machine, characterized in that: include: A bearing frame, the bearing frame comprising two limiting plates; A conveying assembly, wherein the conveying assembly comprises a conveying belt, the two limiting plates are respectively arranged on both sides of the width extension direction of the conveying belt, and a material discharge notch is arranged at the first end of the limiting plate; A feeding auxiliary component is arranged above the conveyor belt and between the two limit plates. The feeding auxiliary component includes an assembly component and two pusher components. The assembly component is fixedly connected to the carrier frame. The two pusher components are arranged in the middle of the assembly component and have mirror-symmetrical structures. There is a gap between the pusher component and the limit plates. Two automatic sealers are both arranged above the conveying belt, and the second end of the limiting plate is provided with an assembly notch, and the two automatic sealers correspond to the positions of the two assembly notches respectively.

2. The automatic sealing device for packaging machine according to claim 1, characterized in that: The carrier frame also includes a base and two material spacer components, the limit plate and the conveyor belt are both arranged above the base, the two material spacer components are respectively arranged on the side walls of the two limit plates close to each other, and the structures are mirror-symmetrical, the assembly component includes a first assembly frame, the first assembly frame is arranged on the side close to the assembly notch, and the first assembly frame is connected to the base; The first assembly frame comprises: Two first connecting plates, with a gap between the two first connecting plates; a second connecting plate, disposed between the two first connecting plates and corresponding to the position of the assembly notch, the second connecting plate being fixedly connected to the two first connecting plates; The third connecting plate is arranged on a side of the second connecting plate away from the material discharge notch, the top of the third connecting plate is fixedly connected to the two first connecting plates, and the bottom of the third connecting plate is fixedly connected to the base.

3. The automatic sealing device for packaging machine according to claim 2, characterized in that: The spacer assembly comprises: A material spacer box, which is arranged at one end of the limiting plate away from the material discharge notch and has a length less than that of the limiting plate, and is fixedly connected to the limiting plate; A plurality of material separators, a plurality of assembly holes are provided on the side wall of the material separator box away from the limiting plate, the plurality of material separators are respectively arranged in the plurality of assembly holes, the middle portion of the material separator plate is rotatably connected to the inner side wall of the assembly hole, the shape of the assembly hole matches the shape of the material separator plate, the top of the material separator plate is arc-shaped, an avoidance groove is provided on the side wall of the limiting plate, the interior of the material separator box is connected to the interior of the avoidance groove, and the avoidance groove corresponds to the bottom position of the material separator plate; The first driving component is arranged on the inner side of the material separation box, and the plurality of material separation plates are connected to the output end of the first driving component. The first driving component is used to drive the plurality of material separation plates to rotate.

4. The automatic sealing device for packaging machine according to claim 3, characterized in that: The first driving assembly comprises: A plurality of first gears are respectively fixedly arranged on the side walls of a plurality of the material separators close to the limiting plate, and the first gears are incomplete gears; A plurality of second gears are arranged on the inner side of the material separation box and correspond to the positions of the plurality of first gears one by one, and the second gears are meshed with the first gears for transmission; A transmission shaft is arranged on the inner side of the material separation box, a plurality of the second gears are sleeved on the transmission shaft and fixedly connected to the transmission shaft, and a first end of the transmission shaft is rotatably connected to the inner side wall of the material separation box; A motor, wherein the output end of the motor is fixedly connected to the second end of the transmission shaft, and the motor is fixedly connected to the inner side wall of the partition box.

5. The automatic sealing device for packaging machine according to claim 2, characterized in that: The assembly assembly also includes a second assembly frame, which is arranged on a side close to the material discharge notch, a material discharge positioning assembly is arranged at the first end of the second assembly frame, the material discharge positioning assembly is connected to the limit plate, and a second end of the second assembly frame is connected to the first assembly frame; The second assembly frame comprises: A first connecting frame, wherein the two limit plates are fixedly connected to one end of the first connecting frame away from the discharge notch; The second connecting frame is in an H-shaped structure, the second connecting frame is arranged between the two first connecting plates, the two first connecting plates are fixedly connected to the second connecting frame, and the second connecting frame is fixedly connected to the first connecting frame.

6. The automatic sealing device for packaging machine according to claim 5, characterized in that: The second assembly frame further includes a guide rod, which is disposed in the middle of the first connecting frame and fixedly connected to the first connecting frame at both ends, and the length extension direction of the guide rod is the same as the width extension direction of the conveyor belt; The pusher assembly comprises: A push plate, the push plate is in a U-shaped structure, the opening end of the push plate faces the limit plate, the opening end of the push plate is trumpet-shaped, and is provided with an arc-shaped guide surface; The second driving assembly is arranged on the top of the first connecting frame, and the second driving assembly includes an electric telescopic rod, which is fixedly connected to the first connecting frame, and the output end of the electric telescopic rod is fixedly connected to the first end of the transmission rod, and the second end of the transmission rod is fixedly connected to the middle part of the push plate. The transmission rod is an L-shaped structure, and the middle part of the transmission rod is sleeved on the guide rod and can slide along the outer surface of the guide rod.

7. The automatic sealing device for packaging machine according to claim 5, characterized in that: There are two material placement positioning components, and the structures of the two material placement positioning components are mirror-symmetrical. The material placement positioning components include: A baffle plate, wherein the baffle plate is in an L-shaped structure, wherein a first end of the baffle plate is fixedly connected to the limit plate, the baffle plate comprises a first positioning surface and a second positioning surface, wherein the first positioning surface faces the material discharge notch, and the second positioning surface faces the first connecting plate, and there is a gap between the bottom surface of the baffle plate and the conveyor belt; A first anti-collision plate, disposed on the first positioning surface and detachably connected to the baffle plate; A second anti-collision plate, disposed on the second positioning surface and detachably connected to the baffle plate; The second assembly frame also includes a third connecting frame, which is in an H-shaped structure and is arranged between the two material baffle plates. The second ends of the two material baffle plates are fixedly connected to the third connecting frame, and the third connecting frame is fixedly connected to the first connecting frame.

8. The automatic sealing device for packaging machine according to claim 7, characterized in that: The conveyor belt is provided with a plurality of circular marks, which are divided into two groups and are respectively arranged at both ends of the width extension direction of the conveyor belt. The circular marks in the same group are arranged at equal intervals along the length extension direction of the conveyor belt. One end of the circular mark is close to the third connecting frame and is tangent to the side wall of the first anti-collision plate facing the discharge notch.

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