Ultrasonic sealing machine

Abstract

The utility model provides an ultrasonic sealing machine which comprises a filling table, a rotary clamping assembly and a sealing unit are arranged on the filling table, the rotary clamping assembly comprises a circulation disc installed on the filling table, a plurality of edge distance grippers are arranged on the peripheral side of the circulation disc to drive packaging bags to conduct circulation operation, and the sealing unit is a lateral inlet. A coincident tangent plane is arranged between the lateral inlet face of the sealing unit and the rotating circle diameter of the packaging bag clamped by the edge distance gripper, and the sealing face of the sealing unit can be in plane press fit or cambered surface press fit. A movable set is arranged in the sealing unit and moves in a vibrating mode, the vibrating end of the movable set is connected with one pressing face of the sealing unit, and the two pressing faces of the sealing unit are pressed temporarily and repeatedly. According to the sealing machine, the time and the action of the packaging process of the packaging bag are synchronously matched with the whole streamline operation, ultrasonic pressing and movable re-pressing are used for conducting the structure, the sealing effect of the sealing machine is optimized, and the integration and the yield of packaging bag sealing are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging bag sealing machine equipment, specifically an ultrasonic sealing machine. Background Technology

[0002] Sealing machines are among the most commonly used packaging equipment, widely applied in the food, cosmetics, clothing, footwear, chemical, electrical, pharmaceutical, tea, dairy, and beverage industries. Modern sealing machines employ heat-sealing technology to press and melt the opening of packaging bags. This heat-melting process requires heating and cooling, resulting in time required for each bag to be sealed. This negatively impacts production capacity when handling large-scale packaging production. Furthermore, sealing machines are often used in continuous automated production processes. The upstream of these synchronized production lines may involve multiple simultaneous steps such as film guiding, film application, filling, heat sealing, cutting, film clamping, and conveying. This places strict time constraints on sealing machines that only perform heat-pressing operations, leading to poor synchronized production efficiency. Even after heat sealing, cooling time is still required. Uncooled packaging bags are prone to adhesion or other issues affecting the aesthetics of the sealed surface. Subsequent conveying processes can also lead to secondary sealing breakage, severely disrupting the orderly sealing process.

[0003] To achieve the above objectives, this utility model provides an ultrasonic sealing machine that can solve the problems mentioned in the background art. Utility Model Content

[0004] This utility model adopts the following technical solution:

[0005] An ultrasonic sealing machine includes a filling table, on which a rotating clamping assembly and a sealing unit are provided. The rotating clamping assembly includes a transfer disk installed on the filling table. Multiple edge grippers are provided around the transfer disk to drive the packaging bag to perform a transfer operation. The sealing unit has a side inlet. The side inlet surface of the sealing unit and the rotation diameter of the edge grippers holding the packaging bag have a coincident tangent surface. The sealing surface of the sealing unit can be a planar pressing or an arc pressing.

[0006] The sealing machine unit has a movable assembly inside, and one end of the movable assembly is connected to the pressing surface.

[0007] The sealing unit is also equipped with a cooling component.

[0008] Preferably, the sealing unit includes a sealing chamber fixed above one side of the filling table. The sealing chamber is equipped with a linear guide pusher cylinder assembly. The pushing axis of the linear guide pusher cylinder assembly is oriented towards the rotation axis of the turntable. An ultrasonic convex plate and a pressing end concave plate are connected below the linear guide pusher cylinder assembly. There is a pressing gap between the pressing end concave plate and the ultrasonic convex plate. The pressing gap has a space that coincides with the upper rotation diameter of the packaging bag.

[0009] Preferably, one end of the linear guide push cylinder assembly is provided with a pressing cylinder, and a movable mounting frame and the pressing cylinder are slidably connected to the side of the linear guide push cylinder assembly. The top two ends of the pressing end concave plate are respectively connected to the fixed mounting frame, and the top two ends of the ultrasonic convex plate are respectively fixed to the bottom of the movable mounting frame. The movable mounting frame is connected to the pressing cylinder.

[0010] An adjustment block is provided at the position where the movable mounting frame connects to the linear guide cylinder assembly, which is used to adjust the limit movement distance of the movable mounting frame.

[0011] Preferably, the upper part of the pressing end concave plate is fixedly connected to the linear guide push cylinder assembly, the interior of the pressing end concave plate is provided with a longitudinally installed slide rod, a top contact block is connected to the slide rod, one side of the top contact block is sleeved with the slide rod, and the movable assembly is fixed inside the concave area of ​​the pressing end concave plate and its working end is connected to the top contact block;

[0012] The working end of the ultrasonic generator is connected to the side of the concave plate away from the pressing end of the ultrasonic convex plate, and the pressing gap is formed between the top block and the ultrasonic convex plate;

[0013] The cooling component acts on the periphery of the top contact block.

[0014] Preferably, the movable assembly includes two vibrators fixed to the top of the concave surface of the pressing end plate, two vibrating rods connected to the bottom of the two vibrators, and two movable piles provided on the top of the top block. Two connecting ports are rotatably connected to the movable piles respectively, and the top of the connecting ports is connected to the bottom of the vibrating rods to transmit vibration.

[0015] Preferably, the top of the top contact block is provided with a protrusion, one side of the protrusion is provided with an electric sleeve, and the other side of the protrusion is provided with a longitudinal sleeve rod. The longitudinal sleeve rod is sleeved on the sliding rod, and one end of the longitudinal sleeve rod is a grooved column that engages with the drive end of the electric sleeve.

[0016] Preferably, the pressing side of the top contact block can be a plane and an inward or outward convex or concave arc surface, and the pressing side of the ultrasonic convex plate can be a plane and an inward or outward convex or concave arc surface. When the ultrasonic convex plate and the top contact block are engaged, they are in a surface-fitting state. When the top contact block and the ultrasonic convex plate are pressed together with an arc surface, the center of the arc surface is always on the same axis as the center of the rotating disk.

[0017] Preferably, the bottom of the pressing end concave plate is provided with two mating grooves at one end near the ultrasonic convex plate, and the cooling assembly includes two freezing tubes with the same axial position as the two mating grooves, and the bottom of the freezing tubes is provided with lateral openings facing the two adjacent ones.

[0018] Preferably, a cooling ring is fitted around the outside of both freezing tubes, and the rotation axes at both ends of the cooling ring correspond to the freezing tubes; the cooling ring is made of a tough, thermally conductive material.

[0019] Preferably, the ultrasonic protruding plate has guide extrusion blocks on both sides, and the end of the guide extrusion block that contacts the packaging bag is a beveled cut, the beveled cut is inclined from bottom to top and has a chamfered corner;

[0020] The gripper end of the edge gripper is a movable claw seat, which can rotate to grip the angle;

[0021] The concave plate at the pressing end is provided with a lateral guide plate.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This utility model sets the bag inlet surface of the sealing machine unit and tangentially overlaps the rotation space of the upper area of ​​the packaging bag with the rotating clamping component. It can quickly adapt and seal the packaging bag in the synchronous direction. It can unify all links on the packaging bag production line into the smallest time unit, and can more conveniently and easily control the sealing operation linkage and synchronization effect of the sealing machine unit, thereby increasing the output per unit time.

[0024] The sealing unit uses short, multiple high-frequency feeding and pressing, which can be combined with vibration of the packaging bag opening to achieve multiple, multi-position composite sealing. While ensuring synchronization, it can strengthen the sealing strength. The ultrasonic heat source mode can save heat source and evenly distribute the heat source surface, and can better fit the two sides of the bag opening. Combined with multiple pauses in pressing and vibration, it can prevent the scorching phenomenon caused by continuous heating on the two sides of the bag opening, thus ensuring the aesthetics of the bag opening.

[0025] By using the tangential rotation of the rotating clamping assembly, the ultrasonic clamping surface is set as a corresponding arc or straight surface, which can fit the bag opening into the sealing unit during the process, avoiding obstruction of the bottom gripper's position change, thus preventing problems such as skewing of the seal.

[0026] Multiple ultrasonic pressing processes can avoid partial charring and liquefaction, preventing the plastic packaging bag from dissolving and sticking to the concave plate or ultrasonic convex plate at the pressing end. Multiple pressing processes provide multiple heat dissipation stages for the sealing surface. When used with cooling components, it can facilitate rapid cooling of the sealing process, reducing the problem of packaging bag damage caused by adhesion of the sealing knife edge and cracking of the sealing adhesive during subsequent transportation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall process structure layout of the packaging bag of this utility model;

[0028] Figure 2 This is a schematic diagram of the main internal components of the packaging bag unit of this utility model.

[0029] Figure 3 This is a schematic diagram of the external structure of the sealing machine unit of this utility model;

[0030] Figure 4 This is a structural diagram of the internal parts of the sealing unit of this utility model;

[0031] Figure 5 This is a schematic diagram of the structural connection between the pressing end concave plate and the ultrasonic convex plate of this utility model;

[0032] Figure 6 This is a schematic diagram showing the connection between the movable assembly and the pressing end concave plate of this utility model.

[0033] In the diagram: 1. Sealing unit; 2. Rotating clamping assembly; 3. Filling table;

[0034] 101. Ultrasonic generator; 102. Sealing chamber; 103. Linear guide cylinder assembly; 104. Movable mounting frame; 105. Pressing cylinder; 106. Fixed mounting frame; 107. Pressing end concave plate; 108. Ultrasonic convex plate; 110. Adjusting block; 111. Matching groove; 112. Cooling assembly; 113. Movable assembly; 114. Freezing pipe; 115. Side opening; 116. Cooling ring belt; 117. Top connecting block; 118. Movable pile; 119. Connection port; 120. Vibrator; 121. Vibrating rod; 122. Protrusion; 123. Electric sleeve; 124. Longitudinal sleeve rod; 125. Guide extrusion block; 126. Side guide plate; 201. Turntable; 202. Edge distance gripper; 203. Movable claw seat. Detailed Implementation

[0035] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] The present invention will be further described in detail below with reference to the accompanying drawings.

[0039] Please refer to the attached document carefully. Figure 1-3 The system includes a filling platform 3, on which a rotating clamping assembly 2 and a sealing unit 1 are provided. The rotating clamping assembly 2 includes a transfer disk 201 installed on the filling platform 3. The transfer disk 201 has multiple edge grippers 202 around its periphery to drive the packaging bag to perform a transfer operation. The sealing unit 1 has a side inlet. The side inlet surface of the sealing unit 1 and the rotation diameter of the edge grippers 202 clamping the packaging bag have a coincident tangent surface. The sealing surface of the sealing unit 1 can be a flat pressing or an arc pressing.

[0040] The sealing machine unit 1 is equipped with a movable group 113 inside. The movable group 113 moves in a vibrating manner and its vibrating end is connected to one of the pressing surfaces of the sealing machine unit 1. The two pressing surfaces of the sealing machine unit 1 are pressed together briefly and multiple times.

[0041] The sealing unit 1 is also equipped with a cooling component 112;

[0042] The sealing unit 1 includes a sealing chamber 102 fixed above one side of the filling table 3. Inside the sealing chamber 102 is a linear guide push cylinder assembly 103. The pushing axis of the linear guide push cylinder assembly 103 faces the rotation axis of the turntable 201. Below the linear guide push cylinder assembly 103 are an ultrasonic convex plate 108 and a pressing end concave plate 107. A pressing gap exists between the pressing end concave plate 107 and the ultrasonic convex plate 108. This pressing gap overlaps with the upper rotational diameter of the packaging bag. The pressing gap between the pressing end concave plate 107 and the ultrasonic convex plate 108 is closed by a pressing cylinder 105. Thus, the linkage between this gap and the rotating clamping assembly 2 is such that after the packaging bag is filled and supported, the edge gripper 20... Two packaging bags are clamped at both ends, and their upper parts are rotated to one side of the pressing gap. They rotate laterally into the pressing gap. When the contact surface of the inner pressing end concave plate 107 and the ultrasonic convex plate 108 is an arc plate, they are in contact with each other. When they are straight plates, they are in contact with each other. The ultrasonic generator 101 and the linear guide push cylinder group 103 briefly and repeatedly perform ultrasonic sealing on the surface of the packaging bag. The bag inlet surface layer setting of the sealing unit 1 and the rotating clamping component 2 are tangentially aligned with the rotation space of the upper area of ​​the packaging bag. It can quickly adapt and seal the packaging bag in the synchronous direction. It can unify all links on the packaging bag production line into the smallest time unit, and can more conveniently and easily control the sealing operation linkage and synchronization effect of the sealing unit 1, thereby increasing the output per unit time.

[0043] In one embodiment of this utility model: please refer to the following: Figure 3-6 One end of the linear guide push cylinder assembly 103 is provided with a pressing cylinder 105. A movable mounting frame 104 is slidably connected to the side of the linear guide push cylinder assembly 103 and the pressing cylinder 105. The top two ends of the pressing end concave plate 107 are respectively connected to the fixed mounting frame 106, and the top two ends of the ultrasonic convex plate 108 are respectively fixed to the bottom of the movable mounting frame 104. The movable mounting frame 104 is connected to the pressing cylinder 105. An adjusting block 110 is provided at the position where the movable mounting frame 104 is connected to the linear guide push cylinder assembly 103 for adjusting the movable mounting frame 104. The installation positions of the movable mounting bracket 104 and the fixed mounting bracket 106 can be interchanged to limit the movement distance. That is, the pressing end concave plate 107 is connected to the bottom of the movable mounting bracket 104 and the bottom of the fixed mounting bracket 106 is connected to the ultrasonic convex plate 108. It is necessary to keep one end of the movable mounting bracket 104 connected to the pressing cylinder 105. The other fixed mounting bracket 106 is installed on the linear guide push cylinder assembly 103 in a point-fixed manner. The feeding method, distance and pressing time of the pressing cylinder 105 are set by the program and are the same as or reduced by a factor of the rotation angle, time and stroke of the rotating clamping assembly 2.

[0044] In another embodiment of this utility model: please refer to the following: Figure 2 , Figure 3 The upper part of the pressing end concave plate 107 is fixedly connected to the linear guide push cylinder assembly 103. The interior of the pressing end concave plate 107 is provided with a longitudinally installed slide rod. A top contact block 117 is connected to the slide rod. One side of the top contact block 117 is sleeved with the slide rod. The movable assembly 113 is fixed inside the concave area of ​​the pressing end concave plate 107 and its working end is connected to the top contact block 117.

[0045] The working end of the ultrasonic generator 101 is connected to the side of the concave plate 107 away from the pressing end of the ultrasonic convex plate 108, and the pressing gap is formed between the top block 117 and the ultrasonic convex plate 108.

[0046] The cooling component 112 acts on the periphery of the top contact block 117;

[0047] The movable assembly 113 includes two vibrators 120 fixed to the top of the concave surface of the pressing end concave plate 107. The bottom of the two vibrators 120 is connected to two vibrating rods 121. The top of the top connecting block 117 is provided with two movable piles 118. Two connecting ports 119 are rotatably connected to the movable piles 118 respectively. The top of the connecting port 119 is connected to the bottom of the vibrating rod 121 to transmit vibration.

[0048] The top of the top connecting block 117 is provided with a protrusion 122, and an electric sleeve 123 is provided on one side of the protrusion 122. A longitudinal sleeve 124 is provided on the other side of the protrusion 122. The longitudinal sleeve 124 is sleeved on the sliding rod. One end of the longitudinal sleeve 124 is a grooved column that engages with the drive end of the electric sleeve 123.

[0049] During the movement of the movable group 113, power is generated by the vibrator 120, and the downward-facing part is connected to the vibrator 120 to transmit vibration. At the same time, the lateral deflection is adjusted by the movable pile 118. At this time, multiple sealing methods can be generated. Among them, the two sides of the top contact block 117 are stationary in the lateral direction with respect to the linear guide cylinder group 103, and movable in the longitudinal direction. One side of the top contact block 117 is in close contact with the cooling ring belt 116, and the cooling ring belt 116 is in direct contact with the sealing bag. The top contact block 117 can be provided with horizontal or vertical micro-grooves or micro-protrusions. Combined with the multiple pressing of the pressing cylinder 105 and the ultrasonic generation, the sealing is achieved. The ultrasonic action of the device 101 causes the contact point between the top block 117 and the surface of the packaging bag to change each time. The source of the change is the small-range micro-groove or micro-protrusion offset caused by the vibration on one side. The offset contact point or surface is attached to the predetermined pressing surface layer temporarily pressed by the pressing cylinder 105 on the upper side, forming multiple small-range interlaced pressing surfaces (which can be referred to as stacked pressing). In addition, each recovery removes some of the heat from the cooling ring 116, so that the predetermined pressing surface layer of the upper layer can undergo a cold contraction and temperature change condensation. When performing ultrasonic hot pressing, it has more stable properties and is less prone to adhesion and coking.

[0050] In another embodiment of this utility model: please refer to the following: Figure 2-6 The pressing side of the top contact block 117 can be a flat surface or an inward or outward convex or concave arc surface. The pressing side of the ultrasonic convex plate 108 can be a flat surface or an inward or outward convex or concave arc surface. When the ultrasonic convex plate 108 and the top contact block 117 are engaged, they are in a surface-fitting state. When the top contact block 117 and the ultrasonic convex plate 108 are pressed together with an arc surface, the center of the arc surface is always on the same axis as the center of the turntable 201. The aforementioned plate-side top contact block 117 and ultrasonic convex plate 108 are close together. When the surface is curved, it can adapt to the edge distance of the rotating clamping component 2 without restricting the bending of the lower clamping component. That is, the two edge grippers 202 on the periphery of the rotating clamping component 2 jointly grip the two ends of a packaging bag. If the edge grippers 202 are installed pointing towards the center, the two ends of the packaging bag will be pulled outward to the sides and become taut. At this time, when the upper end comes into contact with the pressing gap, there will be a mismatch and obstruction problem, which may cause the upper part of the packaging bag seal to bend inside the gap, resulting in inaccurate sealing.

[0051] In another embodiment of this utility model: please refer to the following: Figure 3-6The bottom of the pressing end concave plate 107 near the ultrasonic convex plate 108 has two mating grooves 111. The cooling assembly 112 includes two freezing tubes 114 with the same axial position as the two mating grooves 111. The bottom of each freezing tube 114 has a side opening 115 facing the two adjacent tubes. A cooling ring 116 is sleeved on the outside of the two freezing tubes 114. The rotation axes at both ends of the cooling ring 116 are the same as those of the freezing tubes 114. The cooling ring 116 is made of a tough, thermally conductive material. The ultrasonic convex plate 108 has guide extrusion blocks 125 on both sides. The end of the guide extrusion block 125 that contacts the packaging bag is a beveled cut with an upward angle and a chamfer. The gripper of the edge gripper 202... The end is a movable claw seat 203, which can rotate to clamp the angle; the side of the pressing end concave plate 107 is provided with a side guide plate 126; when the upper sealing area of ​​the packaging bag enters the narrow pressing surface formed by the pressing end concave plate 107 and the ultrasonic convex plate 108, if both ends are in a state of being pulled by the two movable claw seats 203, the upper side guide plate 126 will guide the excess part in advance to prevent it from folding to the side. At the same time, the packaging bag will be close to the cooling ring belt 116 and drive the cooling ring belt 116 to move in a conveyor belt manner. The cooling ring belt 116 has no vertical movement stroke. Or, when the movable claw seat 203 is adjusted so that there is no pulling effect on both sides of the packaging bag, the guide extrusion block 125 on the other side drives the upper end of the open packaging bag to be squeezed into the size of the pressing gap in advance and expel some of the internal gas in an upward manner.

[0052] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. An ultrasonic sealer, characterized by: The application relates to a filling and sealing machine, which comprises a filling table (3) provided with a rotary clamping assembly (2) and a sealing machine assembly (1), the rotary clamping assembly (2) comprises a flow rotating disc (201) installed on the filling table (3), a plurality of edge distance grippers (202) are arranged on the periphery of the flow rotating disc (201) to drive the flow rotation of a packaging bag, the sealing machine assembly (1) is of a lateral inlet, the lateral inlet surface of the sealing machine assembly (1) and the rotary diameter of the edge distance gripper (202) for clamping the packaging bag have a tangent overlap surface, and the sealing surface of the sealing machine assembly (1) can be a flat pressing surface or an arc pressing surface; an activity group (113) is arranged in the sealing machine assembly (1), one end of the activity group (113) is connected with the pressing surface, and a cooling assembly (112) is further arranged in the sealing machine assembly (1).

2. An ultrasonic sealer according to claim 1, characterised in that: The sealing machine assembly (1) comprises a sealing cabin (102) fixed to one side of the upper portion of the filling table (3), a wire rail push cylinder group (103) is arranged in the sealing cabin (102), the push axis of the wire rail push cylinder group (103) is directed to the rotating axis of the flow rotating disc (201), an ultrasonic convex plate (108) and a pressing end concave plate (107) are connected below the wire rail push cylinder group (103), the pressing end concave plate (107) and the ultrasonic convex plate (108) have a pressing gap, and the pressing gap has an overlapping space with the rotary diameter of the upper portion of the packaging bag.

3. An ultrasonic sealer according to claim 2, characterised in that: One end of the wire rail push cylinder group (103) is provided with a pressing cylinder (105), the side edge of the wire rail push cylinder group (103) is slidably connected with an activity mounting frame (104) and the pressing cylinder (105), the top two ends of the pressing end concave plate (107) are respectively connected with the fixed mounting frame (106), the top two ends of the ultrasonic convex plate (108) are respectively fixed to the bottom of the activity mounting frame (104), and the activity mounting frame (104) is connected with the pressing cylinder (105). An adjusting block (110) is arranged at the position where the activity mounting frame (104) is connected with the wire rail push cylinder group (103), and is used for adjusting the limit movement distance of the activity mounting frame (104).

4. An ultrasonic sealer according to claim 2, characterised in that: The upper portion of the pressing end concave plate (107) is fixedly connected with the wire rail push cylinder group (103), a slide rod is longitudinally arranged in the pressing end concave plate (107), a top abutting block (117) is connected to the slide rod, one side of the top abutting block (117) is in a sleeving mode with the slide rod, the activity group (113) is fixed in the recessed area of the pressing end concave plate (107) and the acting end of the activity group (113) is connected with the top abutting block (117); The acting end of an ultrasonic generator (101) is connected with the side of the ultrasonic convex plate (108) away from the pressing end concave plate (107), and the pressing gap is formed between the top abutting block (117) and the ultrasonic convex plate (108); The cooling assembly (112) acts on the periphery of the top abutting block (117).

5. An ultrasonic sealer according to claim 4, characterised in that: The activity group (113) includes two vibrators (120) fixed on the concave top of the pressing end concave plate (107), the bottoms of the two vibrators (120) are connected with two vibration rods (121), the top of the top abutting block (117) is provided with two movable piles (118), the two movable piles (118) are respectively connected with two connecting ports (119) in a rotary mode, and the connecting ports (119) are connected with the bottoms of the vibration rods (121) in a transmission mode.

6. An ultrasonic sealer according to claim 5, characterised in that: The top of the top abutting block (117) is provided with a convex block (122), one side of the convex block (122) is provided with an electric sleeve pile (123), the other side of the convex block (122) is provided with a longitudinal sleeve rod (124), the longitudinal sleeve rod (124) is sleeved on the sliding rod, and one end of the longitudinal sleeve rod (124) is a slot-shaped column body matched with the driving end of the electric sleeve pile (123).

7. An ultrasonic sealer according to claim 4, characterised in that: The pressing side of the top abutting block (117) can be a plane and an inward or outward convex or concave arc surface, the pressing side of the ultrasonic convex plate (108) can be a plane and an inward or outward convex or concave arc surface, and the ultrasonic convex plate (108) is in a surface fitting state when matched with the top abutting block (117); when the top abutting block (117) and the ultrasonic convex plate (108) are in an arc pressing state, the arc centers are always on the same axis as the center of the flow turnover disc (201).

8. The ultrasonic sealer of claim 2, wherein: The bottom of the pressing end concave plate (107) is provided with two matching guard grooves (111) close to one end of the ultrasonic convex plate (108), the cooling assembly (112) includes two freezing pipes (114) with the same axial positions as the two matching guard grooves (111), and the bottoms of the freezing pipes (114) are provided with two side openings (115) close to each other.

9. An ultrasonic sealer according to claim 8, characterised in that: The two freezing pipes (114) are jointly sleeved with a cooling ring belt (116) outside, the rotating shaft lines at the two ends of the cooling ring belt (116) are the same as the freezing pipes (114), and the cooling ring belt (116) is made of a ductile heat-conducting material.

10. The ultrasonic sealer of claim 8, wherein: The two sides of the ultrasonic convex plate (108) are provided with lead-in extrusion blocks (125), one end of the lead-in extrusion block (125) in contact with a packaging bag is an oblique cutout, the oblique cutout is inclined downward and upward at an angle and has a turning chamfer; The gripper end of the edge margin gripper (202) is a movable claw base (203) capable of rotating and clamping at an angle. The side of the pressing end concave plate (107) is provided with a side guide plate (126).

Images