Ultrasonic sealing device

Abstract

The invention belongs to the technical field of packaging equipment, and particularly relates to an ultrasonic sealing device. Comprising a sealing device body, the sealing device body is installed on packaging equipment through a fixing support, and the sealing device body comprises an ultrasonic module used for achieving fusion sealing of packaging bag materials through high-frequency vibration. Packaging material fusion is achieved through mechanical high-frequency vibration, the ultrasonic module is started during working, packaging bags are prevented from being scalded during shutdown, sealing consistency and sealing quality are guaranteed, the mold does not generate high temperature, the metal oxide pollution risk is completely eradicated, energy only acts on a sealing area, energy consumption is lower than that of a heating pipe, operation is safe, and waiting for cooling is not needed; the ultrasonic energy can be adjusted in real time and communicates with equipment, the quality stability is guaranteed, sealing welding is conducted through ultrasonic waves, compared with a traditional heating roller mode, the sealing welding is more efficient, and the problems that traditional heat sealing is high in energy consumption, potential safety hazards and pollution risks are solved.

Description

Technical Field

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

[0002] A sealing machine is a mechanical device that seals packaging containers, primarily used to preserve products and prevent the loss of contents. It is suitable for containers made of paper, plastic, glass, and metal, and is widely used in the food, pharmaceutical, chemical, and cosmetic industries. Its core functions include sealing both flexible and rigid containers. Wet wipes sealing equipment is used to seal wet wipes packaging bags. However, existing wet wipes sealing equipment primarily uses rollers with heating elements for rolling and sealing, which presents the following issues:

[0003] 1. The roller takes a long time to preheat to the sealing temperature. During the production downtime, the roller keeps the high temperature. The packaging bag staying here is likely to shrink and be burned, resulting in poor sealing of the product.

[0004] 2. The roller is heated for a long time, which causes an oxide layer to form on the roller surface. Black metal oxide is easily formed at the sealing of the packaging bag, increasing the risk of product quality.

[0005] 3. The roller needs to be kept heated while working, and the heating area is large, resulting in high energy consumption;

[0006] 4. The roller temperature must be kept above 250 degrees, otherwise workers may get burned easily during operation and maintenance.

[0007] Therefore, we proposed an ultrasonic sealing device to solve the above problems. Summary of the Invention

[0008] (1) Technical problems solved

[0009] In view of the deficiencies of the prior art, the present invention provides an ultrasonic sealing device, which solves the problems of low product yield, high energy consumption and low safety of the existing roller sealing equipment mentioned in the above background art.

[0010] (2) Technical solution

[0011] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0012] An ultrasonic sealing device includes a sealing device body, the sealing device body being mounted on a packaging device via a fixing bracket, the sealing device body comprising:

[0013] Ultrasonic module, used to achieve fusion sealing of packaging bag materials through high-frequency vibration;

[0014] Lifting device, used to adjust the sealing position of the ultrasonic module and the packaging bag;

[0015] A sealing bottom mold is used to cooperate with the ultrasonic module to complete the sealing, and the height of the sealing bottom mold is adjustable;

[0016] Guards for protecting the lifting mechanism;

[0017] The front and rear position adjustment device is used to adjust the front and rear position of the sealing device body relative to the packaging equipment.

[0018] Furthermore, the ultrasonic module includes an ultrasonic mold, an ultrasonic transducer and an ultrasonic mold fixing seat, and the opposite ends of the ultrasonic mold and the ultrasonic transducer extend into the interior of the ultrasonic mold fixing seat and are connected by screws.

[0019] Furthermore, an ultrasonic fixing seat is provided at the bottom of the ultrasonic mold fixing seat, and the ultrasonic mold fixing seat is arranged at an angle. An ultrasonic mold fixing splint for clamping the bottom of the ultrasonic mold is provided at one end of the ultrasonic fixing seat, and a bracket is provided on one side of the ultrasonic fixing seat, and one end of the bracket extends to one side of the ultrasonic mold and is provided with an ultrasonic mold blowing cooling pipe.

[0020] Furthermore, the sealing bottom mold includes a bottom mold fixing seat, a bottom mold height adjustment seat is fixedly installed on one side of the bottom mold fixing seat by screws, the bottom mold height adjustment seat is L-shaped, and a mold fixing seat is embedded on the top of the bottom mold height adjustment seat, and a sealing bottom mold is fixed on the top of the mold fixing seat by screws, forming a sealing gap between the sealing bottom mold and the ultrasonic mold.

[0021] Furthermore, the sealing device body also includes a fixed base plate, and the ultrasonic module is integrated on the top of the fixed base plate through a lifting device. The lifting device includes a lifting bracket assembly and a bracket drive assembly. The lifting bracket assembly includes an upper bracket, a lower bracket and a scissors-type lifting mechanism for connecting the upper bracket and the lower bracket.

[0022] Furthermore, the upper bracket includes two upper fixing plates symmetrically arranged at the bottom of the ultrasonic fixing seat and an upper guide rod symmetrically arranged between the two upper fixing plates, and the upper movable seat is commonly sleeved on the two upper guide rods through a shaft sleeve;

[0023] The lower bracket includes two lower fixing plates symmetrically arranged on the top of the fixed bottom plate and a lower guide rod symmetrically arranged between the two lower fixing plates, and the two lower guide rods are jointly sleeved with a lower movable seat through a shaft sleeve;

[0024] The scissor-type lifting mechanism includes a rotating shaft and an X-shaped connecting rod arranged at both ends of the rotating shaft. The two ends of one side of the X-shaped connecting rod are respectively hinged to the ends of the upper fixed plate and the lower fixed plate, and the two ends of the other side are respectively hinged to the ends of the upper movable seat and the lower movable seat.

[0025] Furthermore, the bracket driving assembly includes a lifting and adjusting handwheel and a lifting and adjusting nut fixedly arranged inside the lower movable seat, the internal thread of the lifting and adjusting nut is sleeved with a lifting and adjusting screw, one end of the lifting and adjusting screw passes through the lower fixed plate and is provided with a bevel gear 1, the lifting and adjusting screw is rotatably sleeved with the lower fixed plate through the screw fixing seat, the lifting and adjusting handwheel is rotatably set at the bottom of the fixed base plate through the handwheel fixing seat, and the top end of the lifting and adjusting handwheel passes through the fixed base plate and is provided with a bevel gear 2 that meshes with the bevel gear 1.

[0026] Furthermore, the front and rear position adjustment device includes a circular guide rail and a front support plate fixedly arranged on the top of the fixed base plate. The number of the circular guide rails and the fixed brackets are two, and the two circular guide rails and the two fixed brackets are respectively arranged correspondingly. The fixed bracket is slidably connected to the circular guide rail through an open guide seat.

[0027] Furthermore, the two ends of the front support plate are respectively opposite to the two fixed brackets, and adjustment handles are provided inside the two ends of the front support plate through bearing sleeves. A thread is provided on one end of the adjustment handle, and one end of the adjustment handle is screwed into the interior of the fixed bracket. The adjustment handle is provided with a spring located between the fixed bracket and the front support plate.

[0028] Furthermore, the protective device includes a protective cover fixed upper plate and a telescopic protective cover, the protective cover fixed upper plate is fixedly arranged on the upper fixed plate, and the two ends of the telescopic protective cover are respectively connected to the protective cover fixed upper plate and the fixed bottom plate.

[0029] (3) Beneficial effects

[0030] Compared with the prior art, the present invention provides an ultrasonic sealing device with the following beneficial effects:

[0031] The present invention realizes the fusion of packaging materials through mechanical high-frequency vibration, and activates the ultrasonic module only when working, so as to avoid damaging the packaging bag during shutdown, thereby ensuring the sealing consistency and sealing quality. The mold does not generate high temperature, and the risk of metal oxide pollution is eliminated. Energy is only applied to the sealing area, and the energy consumption is lower than that of the heating tube. The operation is safe and there is no need to wait for cooling, which improves production efficiency. The ultrasonic energy can be adjusted in real time and communicated with the equipment to ensure quality stability. The use of ultrasonic waves for sealing welding is more efficient than the traditional heating roller method, and solves the problems of high energy consumption, safety hazards and pollution risks of traditional heat sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the main structure of the sealing device of the present invention;

[0033] Figure 2 This is a cross-sectional view of the lifting and adjusting screw structure of the present invention;

[0034] Figure 3 This is a cross-sectional view of the protective device structure of the present invention;

[0035] Figure 4 This is a schematic diagram of the processing direction structure of the packaging bag of the present invention;

[0036] Figure 5 This is a structural diagram of the connection state between the fixing bracket and the packaging equipment installation position of the present invention.

[0037] In the figure: 1. Sealing device body; 11. Ultrasonic module; 111. Ultrasonic mold; 112. Ultrasonic transducer; 113. Ultrasonic mold fixing seat; 114. Ultrasonic fixing seat; 115. Ultrasonic mold fixing splint; 116. Bracket; 117. Ultrasonic mold blowing cooling pipe; 12. Lifting device; 121. Lifting bracket assembly; 122. Upper bracket; 1221. Upper fixed plate; 1222. Upper guide rod; 1223. Upper movable seat; 123. Lower bracket; 1231. Lower fixed plate; 1232. Lower guide rod; 1233. Lower movable seat; 124. Scissor-type lifting mechanism; 1241. Rotating shaft; 1242. X-type connecting rod; 125. Bracket driving assembly; 1251. Lifting Lowering adjustment handwheel; 1252, lifting adjustment nut; 1253, lifting adjustment screw; 1254, bevel gear one; 1255, screw fixing seat; 1256, handwheel fixing seat; 1257, bevel gear two; 13, sealing bottom mold; 131, bottom mold fixing seat; 132, bottom mold height adjustment seat; 133, mold fixing seat; 134, sealing bottom mold; 135, waist-shaped hole; 14, protective device; 141, protective cover fixing upper plate; 142, telescopic protective cover; 15, front and rear position adjustment device; 151, circular guide rail; 152, front support plate; 153, opening guide seat; 154, adjustment handle; 155, spring; 16, fixed bottom plate; 2, fixed bracket; 3, packaging bag; 4, packaging equipment installation position. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0039] Example

[0040] like Figure 1-5 As shown, an ultrasonic sealing device proposed in one embodiment of the present invention includes a sealing device body 1, which is installed on a packaging device through a fixing bracket 2. The sealing device body 1 includes:

[0041] Ultrasonic module 11, used to achieve fusion sealing of packaging bag materials through high-frequency vibration;

[0042] A lifting device 12 is used to adjust the sealing position of the ultrasonic module 11 and the packaging bag;

[0043] The sealing bottom mold 13 is used to cooperate with the ultrasonic module 11 to complete the sealing. The height of the sealing bottom mold 13 is adjustable;

[0044] A protective device 14 for protecting the lifting mechanism;

[0045] The front-to-back position adjustment device 15 is used to adjust the front-to-back position of the sealing device body 1 relative to the packaging equipment.

[0046] The ultrasonic module 11 uses mechanical high-frequency vibration to make the sealed packaging bag itself generate high-frequency vibration, so that the packaging bag materials are melted together. The ultrasonic module 11 works when sealing is required and does not work when the machine is shut down. This fundamentally solves the problem that the roller needs to maintain a high temperature continuously, and the packaging bag will not be burned when the equipment stops running, thereby ensuring the consistency of product sealing and improving the product appearance and sealing quality.

[0047] The ultrasonic sealing device adopts mechanical high-frequency vibration, and the sealing bottom mold 134 and the ultrasonic mold 111 will not generate high temperature, thereby avoiding the generation of metal oxides caused by high temperature, thereby avoiding the quality risk of metal oxides being brought into the product.

[0048] The ultrasonic sealing device only generates sealing energy at the sealing area of ​​the packaging bag, without generating additional energy loss. The working energy consumption is only one tenth of that of the heating tube, thus reducing energy waste and enterprise production costs.

[0049] The ultrasonic sealing module does not generate high temperature when not in operation. Workers do not need to wait for the mold to cool down during operation and maintenance. Contact with the sealing bottom mold 134 and the ultrasonic mold 111 does not cause the risk of burns, thereby ensuring personnel safety and improving production efficiency.

[0050] The ultrasonic transducer 112 is powered by an ultrasonic generator, which converts electrical energy into mechanical vibration energy and transmits it to the ultrasonic mold 111. The ultrasonic energy can be adjusted in real time by the ultrasonic generator according to the set power and related parameters, and can be communicated and controlled with the equipment, with high controllability to ensure product quality stability.

[0051] like Figure 1-5As shown, in some embodiments, the ultrasonic module 11 includes an ultrasonic mold 111, an ultrasonic transducer 112 and an ultrasonic mold fixing seat 113, and the opposite ends of the ultrasonic mold 111 and the ultrasonic transducer 112 extend into the interior of the ultrasonic mold fixing seat 113 and are connected by screws.

[0052] The ultrasonic transducer 112 is powered by an ultrasonic generator, which converts electrical energy into mechanical vibration energy and transmits it to the ultrasonic mold 111. The packaging bag is placed between the ultrasonic mold 111 and the sealing bottom mold 134. Under pressure, the high-frequency vibration of the mold causes the packaging bag to melt together, thereby achieving packaging sealing.

[0053] like Figure 1-5 As shown, in some embodiments, an ultrasonic fixing seat 114 is provided at the bottom of the ultrasonic mold fixing seat 113, and the ultrasonic mold fixing seat 113 is arranged at an angle. One end of the ultrasonic fixing seat 114 is provided with an ultrasonic mold fixing splint 115 for clamping the bottom of the ultrasonic mold 111, and one side of the ultrasonic fixing seat 114 is provided with a bracket 116, and one end of the bracket 116 extends to one side of the ultrasonic mold 111 and is provided with an ultrasonic mold blowing cooling pipe 117.

[0054] The top of the ultrasonic fixing seat 114 is a slope, so that the ultrasonic mold fixing seat 113 fixed on the top of the ultrasonic fixing seat 114 remains in an inclined state. This design can reduce the occupation of the top space, so that an angle is formed between the ultrasonic module 11 and the packaging equipment, which is convenient for the staff to observe the sealing part of the packaging bag, and also facilitates inspection and maintenance. The overall structural design is more ingenious.

[0055] One end of the bracket 116 is bent to one side of the ultrasonic mold 111, and the ultrasonic mold air blowing cooling pipe 117 is installed a little below the sealing gap so as not to occupy the top space. The ultrasonic mold air blowing cooling pipe 117 is used to connect the cold air generating equipment to dissipate heat for the ultrasonic mold 111, and the ultrasonic mold fixing splint 115 is used to assist in fixing the ultrasonic mold 111.

[0056] like Figure 1-5 As shown, in some embodiments, the sealing bottom mold 13 includes a bottom mold fixing seat 131, and a bottom mold height adjustment seat 132 is fixedly installed on one side of the bottom mold fixing seat 131 by screws. The bottom mold height adjustment seat 132 is L-shaped, and a mold fixing seat 133 is embedded on the top of the bottom mold height adjustment seat 132. A sealing bottom mold 134 is fixed on the top of the mold fixing seat 133 by screws, and a sealing gap is formed between the sealing bottom mold 134 and the ultrasonic mold 111.

[0057] The bottom mold fixing base 131 is provided with a plurality of waist-shaped holes 135 inside, and the bottom mold fixing base 131 is locked with the bottom mold height adjustment base 132 through the waist-shaped holes 135 through screws. The height of the bottom mold height adjustment base 132 can be adjusted by adjusting the position of the screws through the waist-shaped holes 135, thereby adjusting the height of the sealing bottom mold 134. A groove is provided on the top of the mold fixing base 133, and the sealing bottom mold 134 is fixed and embedded in the groove by screws. The sealing bottom mold 134 and one end of the ultrasonic mold 111 are opposite to form a sealing gap, and the packaging bag 3 is continuously conveyed from the sealing gap. Figure 5 During the conveying process, the sealing operation is performed through the ultrasonic mold 111.

[0058] The sealing bottom mold 13 is mainly used to adjust the fixed sealing bottom mold 134 to achieve height and pressing force adjustment of the sealing bottom mold 134 . The height of the ultrasonic mold 111 is adjusted by the lifting device 12 to cooperate with the sealing bottom mold 134 .

[0059] like Figure 1-5 As shown, in some embodiments, the sealing device body 1 also includes a fixed base plate 16, and the ultrasonic module 11 is integrated on the top of the fixed base plate 16 through a lifting device 12, and the lifting device 12 includes a lifting bracket assembly 121 and a bracket drive assembly 125, and the lifting bracket assembly 121 includes an upper bracket 122, a lower bracket 123 and a scissors-type lifting mechanism 124 for connecting the upper bracket 122 and the lower bracket 123.

[0060] The fixed base plate 16 carries the ultrasonic module 11 , the lifting device 12 , the sealing bottom mold 13 , the protective device 14 , and the front and rear position adjustment device 15 thereon. The bracket driving assembly 125 is used to drive the lifting bracket assembly 121 .

[0061] like Figure 1-5 As shown, in some embodiments, the upper bracket 122 includes two upper fixing plates 1221 symmetrically arranged at the bottom of the ultrasonic fixing seat 114 and an upper guide rod 1222 symmetrically arranged between the two upper fixing plates 1221, and an upper movable seat 1223 is commonly sleeved on the two upper guide rods 1222 through a shaft sleeve;

[0062] The lower bracket 123 includes two lower fixing plates 1231 symmetrically arranged on the top of the fixed base plate 16 and a lower guide rod 1232 symmetrically arranged between the two lower fixing plates 1231. The two lower guide rods 1232 are jointly sleeved with a lower movable seat 1233 through a shaft sleeve.

[0063] The scissor-type lifting mechanism 124 includes a rotating shaft 1241 and an X-shaped connecting rod 1242 arranged at both ends of the rotating shaft 1241. The two ends of one side of the X-shaped connecting rod 1242 are respectively hinged to the ends of the upper fixed plate 1221 and the lower fixed plate 1231, and the two ends of the other side are respectively hinged to the ends of the upper movable seat 1223 and the lower movable seat 1233.

[0064] The two ends of one side of the X-shaped connecting rod 1242 are respectively hinged to the upper fixed plate 1221 and the lower fixed plate 1231, and the two ends of the other side are respectively hinged to the ends of the upper movable seat 1223 and the lower movable seat 1233. When the lower movable seat 1233 is driven by the lifting adjustment screw 1253, the lower movable seat 1233 pushes one end of the bottom of one side of the X-shaped connecting rod 1242. Since the two ends of the other side of the X-shaped connecting rod 1242 are hinged to the ends of the upper fixed plate 1221 and the lower fixed plate 1231, they cannot move laterally, so that the end of one side of the X-shaped connecting rod 1242 is driven by the lower movable seat 1233 to move relative to the end of the other side. The overall width of the X-shaped connecting rod 1242 is narrowed and the height is increased, so that the X-shaped connecting rod 1242 lifts up the upper bracket 122, so that the upper bracket 122 drives the ultrasonic module 11 to adjust the height.

[0065] The upper movable seat 1223 is slidably connected to the two upper guide rods 1222 through a shaft sleeve, and the same is true for the lower movable seat 1233. This design ensures the stability of the upper movable seat 1223 and the lower movable seat 1233, and the moving process is more stable without deviation or shaking. The two sets of X-shaped connecting rods 1242 are connected by a rotating shaft 1241, and the three-dimensional lifting frame composed of the upper bracket 122 and the lower bracket 123 can greatly improve the overall stability of the ultrasonic module 11.

[0066] like Figure 1-5 As shown, in some embodiments, the bracket driving assembly 125 includes a lifting and adjusting handwheel 1251 and a lifting and adjusting nut 1252 fixedly arranged inside the lower moving seat 1233, the internal thread of the lifting and adjusting nut 1252 is sleeved with a lifting and adjusting screw 1253, one end of the lifting and adjusting screw 1253 passes through the lower fixed plate 1231 and is provided with a bevel gear 1254, the lifting and adjusting screw 1253 is rotatably sleeved with the lower fixed plate 1231 through a screw fixing seat 1255, the lifting and adjusting handwheel 1251 is rotatably set at the bottom of the fixed base plate 16 through a handwheel fixing seat 1256, and the top of the lifting and adjusting handwheel 1251 passes through the fixed base plate 16 and is provided with a bevel gear 2 1257 meshing with the bevel gear 1254.

[0067] A limit plate is provided at the end of the lifting adjustment screw 1253 away from the bevel gear. The limit plate is provided to limit the maximum lifting height of the X-shaped connecting rod 1242, thereby avoiding excessive lifting of the X-shaped connecting rod 1242 and avoiding complete deviation from the center of the upper bracket 122 and the lower bracket 123, thereby ensuring the lifting stability of the upper bracket 122 and the lower bracket 123.

[0068] The lifting adjustment screw 1253 and the screw fixing seat 1255 are adjusted by bearings, so that the lifting adjustment screw 1253 can only rotate and cannot move forward and backward. One end of the screw fixing seat 1255 is fixed to the lower fixed plate 1231 to ensure the stability of the screw fixing seat 1255. The lifting adjustment hand wheel 1251 and the hand wheel fixing seat 1256 are rotatably connected by bearings, so that the lifting adjustment hand wheel 1251 can only rotate and cannot move up and down. The top of the hand wheel fixing seat 1256 is fixed to the fixed bottom plate 16 to ensure the stability of the hand wheel fixing seat 1256. When the height of the ultrasonic module 11 needs to be adjusted by the lifting device 12, the staff rotates the lifting adjustment hand wheel 1251 to lift and lower. The adjusting hand wheel 1251 drives the bevel gear 2 1257 to rotate, the bevel gear 2 1257 is engaged with the bevel gear 1 1254, the bevel gear 1 1254 drives the lifting adjustment screw 1253 to rotate, and the lifting adjustment nut 1252 is driven by the lifting adjustment screw 1253, and according to the rotation direction of the lifting adjustment screw 1253, the lower moving seat 1233 is pushed or pulled. When the lower moving seat 1233 is pushed, the X-shaped connecting rod 1242 rises to lift the upper bracket 122. When the lower moving seat 1233 is pulled, the width of the X-shaped connecting rod 1242 increases, driving the upper bracket 122 to descend, thereby realizing the height adjustment of the ultrasonic module 11. The operation is simple and fast.

[0069] like Figure 1-5 As shown, in some embodiments, the front and rear position adjustment device 15 includes a circular guide rail 151 and a front support plate 152 fixedly arranged on the top of the fixed base plate 16, the number of the circular guide rail 151 and the fixed bracket 2 are two, and the two circular guide rails 151 and the two fixed brackets 2 are respectively arranged correspondingly, and the fixed bracket 2 is slidably connected to the circular guide rail 151 through an open guide seat 153.

[0070] See Figure 4 When in use, the two fixed brackets 2 are fixed to the packaging equipment mounting position 4 on the packaging equipment, and the number of open guide seats 153 between the fixed bracket 2 and the circular guide rail 151 is not less than one, which ensures the stability of the relative sliding between the fixed bracket 2 and the circular guide rail 151, and thus ensures the stability of the fixed base plate 16.

[0071] like Figure 1-5As shown, in some embodiments, the two ends of the front support plate 152 are respectively opposite to the two fixed brackets 2, and an adjustment handle 154 is provided inside both ends of the front support plate 152 through a bearing sleeve, and a thread is provided on one end of the adjustment handle 154, and one end of the adjustment handle 154 is screwed into the interior of the fixed bracket 2, and a spring 155 is sleeved on the adjustment handle 154 and located between the fixed bracket 2 and the front support plate 152.

[0072] When it is necessary to adjust the front and rear position of the sealing device body 1 relative to the packaging equipment, rotate the adjusting handle 154. The bearing setting makes the adjusting handle 154 only able to rotate and cannot move forward and backward. However, when the adjusting handle 154 is rotated, it will pull the front support plate 152 to move relative to the fixed bracket 2. The setting of the spring 155 continuously applies a rebound resistance force to the fixed bracket 2 and the front support plate 152, further ensuring the stability of the adjusting handle 154 when it is not rotated, and the position adjustment is more precise.

[0073] like Figure 1-5 As shown, in some embodiments, the protective device 14 includes a protective cover fixed upper plate 141 and a telescopic protective cover 142. The protective cover fixed upper plate 141 is fixedly set on the upper fixed plate 1221, and the two ends of the telescopic protective cover 142 are respectively connected to the protective cover fixed upper plate 141 and the fixed bottom plate 16.

[0074] The lifting device 12 is covered inside the telescopic protective cover 142. The telescopic protective cover 142 is made of rubber and is used to prevent dust and water from the scissor-type lifting mechanism 124. The protective cover fixed upper plate 141 can be raised and lowered synchronously with the raising and lowering of the upper bracket 122, and the scissor-type lifting mechanism 124 is fully dust-proof and waterproof.

[0075] In summary, the packaging material is fused through mechanical high-frequency vibration, and the ultrasonic module 11 is started only when working to avoid scalding the packaging bag during shutdown, ensuring the sealing consistency and sealing quality. The mold does not generate high temperature, eliminating the risk of metal oxide contamination. The energy only acts on the sealing area, and the energy consumption is lower than that of the heating tube. The operation is safe and there is no need to wait for cooling, which improves production efficiency. The ultrasonic energy can be adjusted in real time and communicate with the equipment to ensure quality stability. The use of ultrasonic waves for sealing welding is more efficient than the traditional heating roller method, and solves the problems of high energy consumption, safety hazards, and pollution risks of traditional heat sealing.

[0076] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An ultrasonic sealing device, comprising a sealing device body (1), characterized in that: The sealing device body (1) is mounted on the packaging equipment via a fixing bracket (2), and the sealing device body (1) comprises: An ultrasonic module (11) is used to achieve fusion sealing of the packaging bag material through high-frequency vibration; A lifting device (12) for adjusting the sealing position of the ultrasonic module (11) and the packaging bag; A sealing bottom mold (13) is used to cooperate with the ultrasonic module (11) to complete the sealing, and the height of the sealing bottom mold (13) is adjustable; A protective device (14) for protecting the lifting mechanism; The front-back position adjustment device (15) is used to adjust the front-back position of the sealing device body (1) relative to the packaging equipment.

2. The ultrasonic sealing device according to claim 1, characterized in that: The ultrasonic module (11) comprises an ultrasonic mold (111), an ultrasonic transducer (112), and an ultrasonic mold fixing seat (113); opposite ends of the ultrasonic mold (111) and the ultrasonic transducer (112) extend into the interior of the ultrasonic mold fixing seat (113) and are connected by screws.

3. The ultrasonic sealing device according to claim 2, characterized in that: An ultrasonic mold fixing seat (114) is provided at the bottom of the ultrasonic mold fixing seat (113), the ultrasonic mold fixing seat (113) is arranged in an inclined manner, one end of the ultrasonic mold fixing seat (114) is provided with an ultrasonic mold fixing clamp (115) for clamping the bottom of the ultrasonic mold (111), and a bracket (116) is provided on one side of the ultrasonic mold fixing seat (114), and one end of the bracket (116) extends to one side of the ultrasonic mold (111) and is provided with an ultrasonic mold blowing cooling pipe (117).

4. The ultrasonic sealing device according to claim 1, characterized in that: The sealing bottom mold (13) comprises a bottom mold fixing seat (131), a bottom mold height adjustment seat (132) is fixedly mounted on one side of the bottom mold fixing seat (131) by screws, the bottom mold height adjustment seat (132) is L-shaped, a mold fixing seat (133) is embedded on the top of the bottom mold height adjustment seat (132), a sealing bottom mold (134) is fixed on the top of the mold fixing seat (133) by screws, and a sealing gap is formed between the sealing bottom mold (134) and the ultrasonic mold (111).

5. The ultrasonic sealing device according to claim 1, characterized in that: The sealing device body (1) further includes a fixed base plate (16), the ultrasonic module (11) is integrated on the top of the fixed base plate (16) via a lifting device (12), the lifting device (12) includes a lifting bracket assembly (121) and a bracket driving assembly (125), and the lifting bracket assembly (121) includes an upper bracket (122), a lower bracket (123), and a scissor-type lifting mechanism (124) for connecting the upper bracket (122) and the lower bracket (123).

6. The ultrasonic sealing device according to claim 5, characterized in that: The upper bracket (122) comprises two upper fixing plates (1221) symmetrically arranged at the bottom of the ultrasonic fixing seat (114) and an upper guide rod (1222) symmetrically arranged between the two upper fixing plates (1221); an upper movable seat (1223) is commonly sleeved on the two upper guide rods (1222) via a shaft sleeve; The lower bracket (123) comprises two lower fixing plates (1231) symmetrically arranged on the top of the fixed base plate (16) and a lower guide rod (1232) symmetrically arranged between the two lower fixing plates (1231), and a lower movable seat (1233) is commonly sleeved on the two lower guide rods (1232) via a shaft sleeve; The scissor-type lifting mechanism (124) comprises a rotating shaft (1241) and an X-shaped connecting rod (1242) arranged at both ends of the rotating shaft (1241); the two ends of one side of the X-shaped connecting rod (1242) are respectively hinged to the ends of the upper fixed plate (1221) and the lower fixed plate (1231), and the two ends of the other side are respectively hinged to the ends of the upper movable seat (1223) and the lower movable seat (1233).

7. The ultrasonic sealing device according to claim 5, characterized in that: The support drive assembly (125) includes a lifting adjustment hand wheel (1251) and a lifting adjustment nut (1252) fixedly arranged inside the lower movable seat (1233); the internal thread of the lifting adjustment nut (1252) is sleeved with a lifting adjustment screw (1253); one end of the lifting adjustment screw (1253) passes through the lower fixed plate (1231) and is provided with a bevel gear 1 (1254); the lifting adjustment screw (1253) is rotatably sleeved with the lower fixed plate (1231) through a screw fixing seat (1255); the lifting adjustment hand wheel (1251) is rotatably arranged at the bottom of the fixed base plate (16) through a hand wheel fixing seat (1256); the top end of the lifting adjustment hand wheel (1251) passes through the fixed base plate (16) and is provided with a bevel gear 2 (1257) meshing with the bevel gear 1 (1254).

8. The ultrasonic sealing device according to claim 1, characterized in that: The front-rear position adjustment device (15) comprises a circular guide rail (151) and a front support plate (152) fixedly arranged on the top of the fixed base plate (16); the number of the circular guide rail (151) and the number of the fixed bracket (2) are both two, and the two circular guide rails (151) and the two fixed brackets (2) are respectively arranged correspondingly; the fixed bracket (2) is slidably connected to the circular guide rail (151) via an open guide seat (153).

9. The ultrasonic sealing device according to claim 8, characterized in that: The two ends of the front support plate (152) are respectively opposite to the two fixed brackets (2); the interiors of the two ends of the front support plate (152) are provided with adjustment handles (154) through bearing sleeves; one end of the adjustment handle (154) is provided with a thread; one end of the adjustment handle (154) is screwed into the interior of the fixed bracket (2); the adjustment handle (154) is sleeved with a spring (155) located between the fixed bracket (2) and the front support plate (152).

10. The ultrasonic sealing device according to claim 1, characterized in that: The protective device (14) comprises a protective cover fixed upper plate (141) and a telescopic protective cover (142); the protective cover fixed upper plate (141) is fixedly arranged on the upper fixed plate (1221); and the two ends of the telescopic protective cover (142) are respectively connected to the protective cover fixed upper plate (141) and the fixed bottom plate (16).

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