Vacuum packaging machine for economic management vouchers

By using ultrasonic sensors in a certificate vacuum packaging machine to judge the thickness and material of the certificate, and automatically adjust the sealing parameters in combination with vacuum and heating components, the problem of sealing quality in the prior art is solved, ensuring the sealing and integrity of the certificate.

CN119284302APending Publication Date: 2025-01-10LANZHOU UNIV
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411726491.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-01-10

AI Technical Summary

Technical Problem

The existing certificate packaging device cannot automatically adjust the sealing time and temperature according to the thickness and material of the certificate, resulting in the inability to confirm the sealing quality. In severe cases, the certificate may be easily damp, damaged, and tampered with.

Method used

An economic management certificate vacuum packaging machine is designed, including heating components and induction components, to judge the certificate thickness and material through ultrasonic sensors, adjust the heat seal temperature and time, and ensure the packaging quality with vacuum components.

Benefits of technology

It realizes automatic adjustment of sealing time and temperature according to the thickness and material of the certificate, ensures that the sealing is firmly sealed, prevents the certificate from being damp, damaged, or tampered, and improves the packaging quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119284302A_ABST
    Figure CN119284302A_ABST
Patent Text Reader

Abstract

The invention discloses an economic management voucher vacuum packaging machine, and relates to the field of economic management. The device body comprises a bearing assembly, a vacuum assembly connected with the device body, a heating assembly connected with the device body, a sensing assembly connected with the heating assembly and a placing assembly connected with the device body; and the heating assembly comprises a sliding groove, a lifting adjusting rod, a sliding block, a heating frame, an air heater, a heat sealing pipe, a heat sealing pump, an insertion pipe, an air outlet and a middle plate. The device has the advantages that the second controller is turned on, packaging parameters, the vacuum degree, the sealing temperature and the sealing time are set, the vacuum pump body is started to pump out air in a packaging bag, and after vacuum pumping is completed, the packaging bag is sealed through the insertion pipe; and through an ultrasonic sensor arranged at the sensing assembly, a hydraulic rod drives an abutting plate and a sensing block to further abut against and sense the packaging bag.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the field of economic management, in particular to a vacuum packaging machine for economic management certificates. Background Art

[0002] The voucher vacuum sealing machine is a device specially used to seal important documents such as vouchers. Its invention is of great significance. In many fields, such as finance, financial affairs, and archives management, the preservation and management of vouchers are crucial.

[0003] The existing voucher packaging device cannot automatically adjust the sealing time and sealing temperature according to the thickness and material of the voucher, which makes it impossible to confirm whether the seal is firm, affecting the quality of the seal. In serious cases, it may cause the voucher to be susceptible to moisture, damage, and tampering. In order to solve these problems, we propose an economic management voucher vacuum packaging machine. Summary of the invention

[0004] The object of the present invention is to provide a vacuum packaging machine for economic management vouchers.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an economic management voucher vacuum packaging machine, comprising a device body, the device body comprising a receiving component, a vacuum component connected to the device body, a heating component connected to the device body, an induction component connected to the heating component, and a placement component connected to the device body;

[0006] The heating assembly includes a slide, a lifting adjustment rod, a slider, a heating frame, a hot air blower, a heat sealing pipe, a heat sealing pump, a plug, an air outlet and an intermediate plate. The two lifting adjustment rods are fixed inside the two slides. The lower end of the slider is fixedly connected to the lower end of the lifting adjustment rod. The heating frame is fixed on the slider. The two hot air blowers are respectively fixed on the tops of the two heating frames. The two intermediate plates are respectively fixed between the two heating frames. The heat sealing pipe is fixed on both ends of the hot air blower. The heat sealing pump is fixed on the heat sealing pipe. A plurality of plugs are fixed on the heat sealing pipe, and the two heat sealing pipes are connected to each other. The two plugs are arranged inside the intermediate plate and are arranged opposite to each other. The air outlet is arranged at the end of the plurality of plugs.

[0007] The sensing assembly includes a top block, a connecting plate, an ultrasonic sensor, a hydraulic rod, a back plate and a sensing block. The two top blocks are arranged at the top of the middle plate, the connecting plate is fixed to the opposite side of the two top blocks, the left end of the ultrasonic sensor is fixedly connected to the right end of the connecting plate, the hydraulic rod is arranged at the bottom of the connecting plate and fixedly connected to the top block, the back plate is arranged at the right end of the hydraulic rod, and the left end of the sensing block is fixedly connected to the right end of the back plate.

[0008] As a further solution of the present invention: a base is provided in the middle of the device body, and a controller 1 is fixed to the outer left side wall of the base.

[0009] As a further solution of the present invention: universal wheels are arranged at the four corners of the lower end of the base, and foot brakes are arranged on the universal wheels.

[0010] As a further solution of the present invention: the receiving assembly includes a receiving seat, a receiving groove, a sliding frame, a fixed groove and a side groove, the receiving seat is fixed to the front end of the base, the receiving groove is opened on the top surface of the receiving seat, the two sliding frames are respectively fixed to the lower ends of the receiving seat, the fixed groove is opened inside the sliding frame, and the side groove is opened on the side of the sliding frame.

[0011] As a further solution of the present invention: a transverse groove is provided on the upper part of the sliding frame, the transverse groove is arranged at the top of the side groove, a transverse plate is slidably connected inside the transverse groove, a connecting frame is fixedly connected to the lower end of the transverse plate, a slot is provided inside the connecting frame, an intermediate block is provided inside the sliding frame, an insert block is plugged into the slot, a receiving block is provided at the lower end of the insert block, through holes are provided on the intermediate block, the connecting frame and the insert block, a connecting plate is fixed between the two receiving blocks, a supporting inclined plate is fixed to the lower end of the connecting plate, a sleeve block is fixed to the bottom of the supporting inclined plate, a sliding rod is sleeved on the sleeve block, a receiving frame is fixed on the outer side of the sliding rod, a vertical groove is provided on the inner right wall of the receiving frame, a telescopic rod is fixed inside the vertical groove, and a connecting block is fixed to the bottom end of the telescopic rod.

[0012] As a further solution of the present invention: a heat sealing cabinet is arranged at the upper end of the base, a connecting sleeve is arranged at the top end of the heat sealing cabinet, an entry port is fixed on the connecting sleeve, a cabinet door is arranged at the front of the heat sealing cabinet through a rotating column, and a first pull ring is fixed on the cabinet door.

[0013] As a further solution of the present invention: the vacuum assembly includes a base plate, a vacuum pump body, a vacuum tube, a packaging machine, an upper air suction port, a lower connecting port, an air outlet and a second controller. The vacuum pump body is fixedly arranged at the top of the base plate, the vacuum tube passes through the left inner wall of the heat sealing cabinet and is fixed to the right end of the vacuum pump body, the packaging machine and the vacuum tube are fixed to the inner top of the heat sealing cabinet, the upper air suction port and the lower connecting port are respectively fixed to the top and bottom of the packaging machine, and the second controller is fixedly arranged at the front end of the packaging machine.

[0014] As a further solution of the present invention: the placement component includes a vacuum chamber, a box door, a transparent window, a second pull ring and a receiving interface, the box door is fixed to the front of the vacuum chamber, the transparent window is opened in front of the box door, the second pull ring is fixed on the box door, and the receiving interface is arranged at the top of the vacuum chamber.

[0015] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The present invention opens the second controller, sets the packaging parameters, vacuum degree, sealing temperature and sealing time, starts the vacuum pump to extract the air in the packaging bag, and after the vacuum extraction is completed, the ultrasonic sensor set at the sensing component is passed, and the hydraulic rod drives the abutment plate and the sensing block to further abut and sense the packaging bag;

[0017] 2. Slide the lifting and adjusting rod in the heating component to the position of the packaging bag. At this time, start the heat sealing pump to turn on the hot air blower, and the hot air is blown out from the intubation tube and the air outlet to heat-seal the packaging bag, so that the packaging bag is firmly sealed to prevent air from entering again. The heat sealing temperature and time can be adjusted according to the material and thickness of the packaging bag to ensure the quality of the packaging, so as to solve the problem that the existing voucher packaging device cannot automatically adjust the sealing time and sealing temperature according to the thickness and material of the voucher, thereby making it impossible to confirm whether the seal is firm, affecting the quality of the seal, and seriously causing the voucher to be easily affected by moisture, damage, and tampering;

[0018] 3. The present invention can achieve a fastened connection of the supporting inclined plate by inserting the plug block into the inside of the slot and inserting the fixing bolts into the through holes of the middle block, the connection frame and the plug block. At this time, the controller starts the telescopic rod to rise and fall to different heights to adjust the different inclinations of the receiving seat. When not in use, the fixing bolts can be removed from the through holes of the middle block, the connection frame and the plug block to support the receiving seat, which is convenient for the use of the device body.

[0019] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a first stereoscopic schematic diagram in an embodiment of the present invention;

[0021] Figure 2 is a second stereoscopic schematic diagram of an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the connection structure between the vacuum component and the controller 2 in an embodiment of the present invention;

[0023] Figure 4 for Figure 3 Schematic diagram at C in the middle;

[0024] Figure 5 It is a first stereoscopic schematic diagram of a receiving component in an embodiment of the present invention;

[0025] Figure 6 It is a second stereoscopic schematic diagram of the receiving component in the embodiment of the present invention;

[0026] Figure 7 for Figure 6 Schematic diagram at A in the middle;

[0027] Figure 8 for Figure 6 Schematic diagram at B in the middle;

[0028] Fig. 9 It is a three-dimensional schematic diagram of a vacuum component in an embodiment of the present invention;

[0029] Fig.10 It is a three-dimensional schematic diagram of a sensing component in an embodiment of the present invention.

[0030] In the figure: 1. device body; 2. base; 3. controller 1; 4. universal wheel; 5. receiving assembly; 51. receiving seat; 52. receiving slot; 53. sliding frame; 54. fixing slot; 55. side slot; 56. transverse slot; 57. transverse plate; 58. connecting frame; 59. slot; 60. middle block; 61. receiving block; 611. insert block; 62. connecting plate; 63. supporting inclined plate; 64. receiving frame; 65. vertical slot; 66. sliding rod; 67. sleeve block; 69. connecting block; 70. telescopic rod; 8. heat sealing cabinet; 9. connecting sleeve; 91. entry port; 10. cabinet door; 11. first pull ring; 12. vacuum assembly; 121. bottom plate; 122. vacuum pump body; 123. vacuum tube ; 124, packaging machine; 125, upper exhaust port; 126, lower connecting port; 127, air outlet; 128, controller 2; 13, heating component; 131, slide; 132, lifting adjustment rod; 133, slider; 134, heating frame; 135, hot air blower; 136, heat sealing tube; 137, heat sealing pump; 138, insert tube; 139, air outlet; 140, middle plate; 15, sensing component; 151, top block; 152, connecting plate; 153, ultrasonic sensor; 154, hydraulic rod; 155, back plate; 156, sensing block; 16, placement component; 161, vacuum chamber; 162, box door; 163, transparent window; 164, second pull ring; 165, receiving interface. DETAILED DESCRIPTION

[0031] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0032] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] Please refer to the attached Figure 1 -Attached Fig.10The present invention discloses an economic management voucher vacuum packaging machine, comprising a device body 1, wherein the device body 1 comprises a receiving component 5, a vacuum component 12 connected to the device body 1, a heating component 13 connected to the device body 1, an induction component 15 connected to the heating component 13, and a placement component 16 connected to the device body 1;

[0034] The heating assembly 13 includes a chute 131, a lifting adjustment rod 132, a slider 133, a heating frame 134, a hot air blower 135, a heat sealing tube 136, a heat sealing pump 137, a plug 138, an air outlet 139 and a middle plate 140. The two lifting adjustment rods 132 are fixed inside the two chute 131, the lower end of the slider 133 is fixedly connected to the lower end of the lifting adjustment rod 132, the heating frame 134 is fixed on the slider 133, and the two hot air blowers 135 are respectively The two middle plates 140 are respectively fixed between the two heating frames 134, the heat sealing tube 136 is fixed at both ends of the hot air blower 135, the heat sealing pump 137 is fixed on the heat sealing tube 136, a plurality of inserting tubes 138 are fixed on the heat sealing tube 136, and the two heat sealing tubes 136 are connected to each other, the two inserting tubes 138 are penetrated inside the middle plate 140 and are arranged opposite to each other, and the air outlet 139 is arranged at the end of the plurality of inserting tubes 138;

[0035] The sensing assembly 15 includes a top block 151, a connecting plate 152, an ultrasonic sensor 153, a hydraulic rod 154, a backing plate 155 and a sensing block 156. The two top blocks 151 are arranged at the top of the middle plate 140. The connecting plate 152 is fixed to the opposite side of the two top blocks 151. The left end of the ultrasonic sensor 153 is fixedly connected to the right end of the connecting plate 152. The hydraulic rod 154 is arranged at the bottom of the connecting plate 152 and is fixedly connected to the top block 151. The backing plate 155 is arranged at the right end of the hydraulic rod 154. The left end of the sensing block 156 is fixedly connected to the right end of the backing plate 155.

[0036] In one embodiment of the present invention: a base 2 is provided in the middle of the device body 1, a controller 3 is fixed to the outer left side wall of the base 2, universal wheels 4 are provided at the four corners of the lower end of the base 2, and a foot brake is provided on the universal wheels 4.

[0037] In one embodiment of the present invention: the receiving assembly 5 includes a receiving seat 51, a receiving groove 52, a sliding frame 53, a fixing groove 54 and a side groove 55, the receiving seat 51 is fixed to the front end of the base 2, the receiving groove 52 is opened on the top surface of the receiving seat 51, the two sliding frames 53 are respectively fixed to the lower ends of the receiving seat 51, the fixing groove 54 is opened inside the sliding frame 53, and the side groove 55 is opened on the side of the sliding frame 53.

[0038] In one embodiment of the present invention, a transverse groove 56 is provided on the upper part of the sliding frame 53, and the transverse groove 56 is arranged at the top of the side groove 55. A transverse plate 57 is slidably connected inside the transverse groove 56, and a connecting frame 58 is fixedly connected to the lower end of the transverse plate 57. A slot 59 is provided inside the connecting frame 58. An intermediate block 60 is provided inside the sliding frame 53, and an insert block 611 is inserted inside the slot 59. A receiving block 61 is provided at the lower end of the insert block 611. The intermediate block 60 is provided inside the sliding frame 53. 0. Both the connecting frame 58 and the insert block 611 are provided with through holes, a connecting plate 62 is fixed between the two receiving blocks 61, a supporting inclined plate 63 is fixed to the lower end of the connecting plate 62, a sleeve block 67 is fixed to the bottom of the supporting inclined plate 63, a sliding rod 66 is sleeved on the sleeve block 67, a receiving frame 64 is fixed to the outer side of the sliding rod 66, a vertical groove 65 is provided on the inner right side wall of the receiving frame 64, a telescopic rod 70 is fixed inside the vertical groove 65, and a connecting block 69 is fixed to the bottom end of the telescopic rod 70.

[0039] In one embodiment of the present invention: a heat sealing cabinet 8 is arranged at the upper end of the base 2, a connecting sleeve 9 is arranged at the top of the heat sealing cabinet 8, an entry port 91 is fixed on the connecting sleeve 9, a cabinet door 10 is arranged at the front of the heat sealing cabinet 8 through a rotating column, and a first pull ring 11 is fixed on the cabinet door 10.

[0040] In one embodiment of the present invention: the vacuum assembly 12 includes a base plate 121, a vacuum pump body 122, a vacuum tube 123, a packaging machine 124, an upper air suction port 125, a lower connecting port 126, an air outlet 127 and a controller 2 128, the vacuum pump body 122 is fixedly arranged at the top of the base plate 121, the vacuum tube 123 passes through the left inner wall of the heat sealing cabinet 8 and is fixed to the right end of the vacuum pump body 122, the packaging machine 124 and the vacuum tube 123 are fixed to the inner top of the heat sealing cabinet 8, the upper air suction port 125 and the lower connecting port 126 are respectively fixed to the top and bottom of the packaging machine 124, and the controller 2 128 is fixedly arranged at the front end of the packaging machine 124.

[0041] In one embodiment of the present invention: the placement component 16 includes a vacuum chamber 161, a box door 162, a transparent window 163, a second pull ring 164 and a receiving port 165, the box door 162 is fixed to the front of the vacuum chamber 161, the transparent window 163 is opened in front of the box door 162, the second pull ring 164 is fixed on the box door 162, and the receiving port 165 is arranged at the top of the vacuum chamber 161.

[0042] Example 1, please refer to the attached Figure 1 -Attached Fig.10, through the setting of the ultrasonic sensor 153, after the voucher packaging bag passes through the vacuum of the packaging machine 124, it enters between the two middle plates 140. At this time, the ultrasonic sensor 153 first works by emitting ultrasonic pulses and receiving echoes reflected from the voucher packaging bag, measuring the time for the ultrasonic wave to pass through the voucher packaging bag from one side to the other side of the voucher packaging bag, and combining the propagation speed of the ultrasonic wave in the voucher packaging bag, thereby calculating the thickness of the voucher packaging bag, and by analyzing the intensity and waveform characteristics of the echo, the material of the voucher packaging bag is judged, thereby achieving the judgment of the thickness and material of the voucher;

[0043] Specifically, by turning on the second controller 128, the vacuum pump body 122 is started to extract the air in the packaging bag. After the vacuum extraction is completed, the thickness and material of the voucher packaging bag are determined by the ultrasonic sensor 153 provided at the sensing component 15;

[0044] Specifically, the hydraulic rod 154 drives the abutment plate 155 and the induction block 156 to further abut and sense the packaging bag;

[0045] Specifically, the packaging bag is heat-sealed by the heating component 13, so that the packaging bag is firmly sealed to prevent air from entering again. The heat-sealing temperature and time can be adjusted according to the material and thickness of the packaging bag to ensure the quality of the packaging, thereby solving the problem that the existing voucher packaging device cannot automatically adjust the sealing time and sealing temperature according to the thickness and material of the voucher, thereby making it impossible to confirm whether the seal is firm, affecting the quality of the seal, and seriously causing the voucher to be easily affected by moisture, damage, and tampering;

[0046] Specifically, the present invention inserts the plug block 611 into the slot 59, and inserts the fixing bolts into the through holes of the middle block 60, the connection frame 58 and the plug block 611, so as to achieve a fastened connection of the supporting inclined plate 63. At this time, the controller 3 starts the telescopic rod 70 to rise and fall to different heights to achieve adjustment of different inclinations of the receiving seat 51. When not in use, the fixing bolts are removed from the through holes of the middle block 60, the connection frame 58 and the plug block 611, and the receiving seat 51 is restored from a horizontal state to a vertical state, thereby achieving support for the receiving seat 51 and facilitating the use of the device body 1.

[0047] Working principle:

[0048] First, the device body 1 is moved to the position where it is needed by the universal wheel 4, and the foot brake is used to stop. At this time, the economic management certificate to be packaged is placed in a packaging bag dedicated to the certificate, and then counted into the inside of the connecting sleeve 9 and the certificate entry port 91. The controller 128 sets the packaging parameters, vacuum degree, sealing temperature and sealing time, and starts the vacuum pump body 122 on the packaging machine 124 to evacuate the packaging bag. At this time, the air in the packaging bag is extracted by the vacuum pump body 122. Since the pressure at the air extraction port 125 on the vacuum pump body 122 is lower than the external atmospheric pressure, the external gas is pressed into the pump cavity under the action of the pressure difference, and then discharged from the vacuum pump body 122 through the air outlet 127. When the pressure in the vacuum cavity 161 reaches the set vacuum degree, the gas inside the packaging bag is extracted, and the controller 128 controls to turn off the vacuum pump;

[0049] After the vacuum extraction is completed, the ultrasonic sensor 153 provided at the sensing component 15 is first used to judge the thickness and material of the voucher packaging bag. Then, the hydraulic rod 154 drives the abutment plate 155 and the sensing block 156 to further abut and sense the packaging bag. The lifting and lowering adjustment rod 132 in the heating component 13 slides to the position of the packaging bag. At this time, the heat sealing pump 137 is started to turn on the hot air blower 135. The hot air is blown out from the insertion tube 138 and the air outlet 139 to heat-seal the packaging bag. If the packaging bag is made of polyethylene, when the total thickness of the bag is 85μm-100μm, The heat sealing temperature should be controlled at 180℃-200℃, and the time is 1S-2S. As the thickness increases, the temperature increases, and the time can be extended to 2S-3S to make the packaging bag tightly sealed and prevent air from entering again. The heat sealing temperature and time can be adjusted according to the material and thickness of the packaging bag to ensure the quality of packaging. At this time, the two hydraulic rods 154 drive the abutment plate 155 and the induction block 156 to loosen the tightly abutted packaging bag, and the controller 13 controls the hot air blower 135 to turn off. Subsequently, the heat-sealed packaging bag enters the interior of the vacuum chamber 161 through the interior of the receiving interface 165;

[0050] Finally, the packaging bag is placed in the vacuum chamber 161 for storage. After completion, the packaging machine 124 automatically stops working, the box door 162 at the front of the vacuum chamber 161 is opened, and the packaged voucher is taken out. When the receiving seat 51 in the receiving assembly 5 needs to be used for support, the plug block 611 is inserted into the inside of the slot 59, and the fixing bolts are inserted into the through holes of the middle block 60, the connecting frame 58 and the plug block 611, so as to achieve the fastening connection of the supporting inclined plate 63. At this time, the controller 3 starts the telescopic rod 70 to rise and fall to different heights to adjust the different inclinations of the receiving seat 51. When not in use, the fixing bolts are removed from the through holes of the middle block 60, the connecting frame 58 and the plug block 611, and the receiving seat 51 is restored from the horizontal to the vertical state.

[0051] At this point, the entire process ends.

[0052] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0054] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0055] It is apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and the changes still fall within the protection scope of the invention.

Claims

1. An economic management voucher vacuum packaging machine, comprising a device body (1), characterized in that: The device body (1) comprises a receiving component (5), a vacuum component (12) connected to the device body (1), a heating component (13) connected to the device body (1), an induction component (15) connected to the heating component (13), and a placement component (16) connected to the device body (1); The heating assembly (13) comprises a slide groove (131), a lifting adjustment rod (132), a slider (133), a heating frame (134), a hot air blower (135), a heat sealing tube (136), a heat sealing pump (137), a plug (138), an air outlet (139) and an intermediate plate (140). The two lifting adjustment rods (132) are fixed inside the two slide grooves (131). The lower end of the slider (133) is fixedly connected to the lower end of the lifting adjustment rod (132). The heating frame (134) is fixed on the slider (133). The two hot air blowers (135) are fixed to the slider (136). 5) are respectively fixed on the top ends of the two heating frames (134), the two middle plates (140) are respectively fixed between the two heating frames (134), the heat sealing tube (136) is fixed on both ends of the hot air blower (135), the heat sealing pump (137) is fixed on the heat sealing tube (136), a plurality of inserting tubes (138) are fixed on the heat sealing tube (136), and the two heat sealing tubes (136) are connected to each other, the two inserting tubes (138) are penetrated inside the middle plate (140) and are arranged opposite to each other, and the air outlet (139) is arranged at the end of the plurality of inserting tubes (138); The sensing assembly (15) comprises a top block (151), a connecting plate (152), an ultrasonic sensor (153), a hydraulic rod (154), a resisting plate (155) and a sensing block (156); the two top blocks (151) are arranged at the top end of the middle plate (140); the connecting plate (152) is fixed to the opposite side of the two top blocks (151); the left end of the ultrasonic sensor (153) is fixedly connected to the right end of the connecting plate (152); the hydraulic rod (154) is arranged at the bottom of the connecting plate (152) and is fixedly connected to the top block (151); the resisting plate (155) is arranged at the right end of the hydraulic rod (154); and the left end of the sensing block (156) is fixedly connected to the right end of the resisting plate (155).

2. The economic management voucher vacuum packaging machine according to claim 1, characterized in that: A base (2) is provided in the middle of the device body (1), and a controller (3) is fixed to the outer left side wall of the base (2).

3. The economic management voucher vacuum packaging machine according to claim 2, characterized in that: Universal wheels (4) are arranged at the four corners of the lower end of the base (2), and foot brakes are arranged on the universal wheels (4).

4. The economic management voucher vacuum packaging machine according to claim 1, characterized in that: The receiving assembly (5) comprises a receiving seat (51), a receiving groove (52), a sliding frame (53), a fixing groove (54) and a side groove (55); the receiving seat (51) is fixed to the front end of the base (2); the receiving groove (52) is arranged on the top surface of the receiving seat (51); the two sliding frames (53) are respectively fixed to the lower ends of the receiving seat (51); the fixing groove (54) is arranged inside the sliding frame (53); and the side groove (55) is arranged on the side of the sliding frame (53).

5. The economic management voucher vacuum packaging machine according to claim 4, characterized in that: The upper part of the sliding frame (53) is provided with a transverse groove (56), which is arranged at the top of the side groove (55), the interior of the transverse groove (56) is slidably connected with a transverse plate (57), the lower end of the transverse plate (57) is fixedly connected with a connecting frame (58), a slot (59) is provided inside the connecting frame (58), an intermediate block (60) is provided inside the sliding frame (53), an insert block (611) is inserted inside the slot (59), a receiving block (61) is provided at the lower end of the insert block (611), the intermediate block (60), the connecting frame (53) and the connecting frame (53) are connected to each other. 8) and the insert block (611) are both provided with through holes, a connecting plate (62) is fixed between the two receiving blocks (61), a supporting inclined plate (63) is fixed at the lower end of the connecting plate (62), a sleeve block (67) is fixed at the bottom of the supporting inclined plate (63), a sliding rod (66) is sleeved on the sleeve block (67), a receiving frame (64) is fixed on the outer side of the sliding rod (66), a vertical groove (65) is provided on the right side wall of the receiving frame (64), a telescopic rod (70) is fixed inside the vertical groove (65), and a connecting block (69) is fixed at the bottom end of the telescopic rod (70).

6. The economic management voucher vacuum packaging machine according to claim 2, characterized in that: A heat sealing cabinet (8) is arranged at the upper end of the base (2), a connecting sleeve (9) is arranged at the top end of the heat sealing cabinet (8), an entry port (91) is fixed on the connecting sleeve (9), a cabinet door (10) is arranged at the front of the heat sealing cabinet (8) via a rotating column, and a first pull ring (11) is fixed on the cabinet door (10).

7. The economic management voucher vacuum packaging machine according to claim 1, characterized in that: The vacuum assembly (12) comprises a bottom plate (121), a vacuum pump body (122), a vacuum tube (123), a packaging machine (124), an upper air extraction port (125), a lower connection port (126), an air outlet (127) and a second controller (128); the vacuum pump body (122) is fixedly arranged at the top end of the bottom plate (121); the vacuum tube (123) passes through the left inner wall of the heat sealing cabinet (8) and is fixed to the right end of the vacuum pump body (122); the packaging machine (124) and the vacuum tube (123) are fixed to the inner top of the heat sealing cabinet (8); the upper air extraction port (125) and the lower connection port (126) are respectively fixed to the top end and the bottom end of the packaging machine (124); and the second controller (128) is fixedly arranged at the front end of the packaging machine (124).

8. The economic management voucher vacuum packaging machine according to claim 1, characterized in that: The placement assembly (16) comprises a vacuum chamber (161), a box door (162), a transparent window (163), a second pull ring (164) and a receiving interface (165); the box door (162) is fixed to the front of the vacuum chamber (161); the transparent window (163) is opened in front of the box door (162); the second pull ring (164) is fixed on the box door (162); and the receiving interface (165) is arranged at the top of the vacuum chamber (161).