Vacuum sealing machine with characters and sealing method thereof

Abstract

The invention belongs to the technical field of vacuum sealer products, and particularly discloses a vacuum sealer with characters, which comprises a base and an upper cover, the upper cover is movably hinged with one side of the base, a vacuum pump, a control circuit board and a power line are arranged on the base, and upper and lower vacuum cavities are arranged at the corresponding positions of the binding surfaces when the base and the upper cover are closed. Sealing rubber rings are arranged on the periphery of the upper vacuum cavity and the periphery of the lower vacuum cavity respectively, a sealing heating piece assembly is arranged on the front side of the base, a heat sealing strip is arranged at the corresponding position of the front side of the upper cover, a plurality of character belts and character belt driving devices are arranged in the upper cover / base, and an elastic character hot stamping device is arranged at the corresponding position in the base / upper cover. The vacuum sealing machine is simple in structure, convenient to use, light and miniaturized in appearance, capable of achieving hot stamping of various characters, clear in handwriting, high in heating efficiency, capable of synchronously completing sealing and hot stamping of the characters, capable of being disassembled without additional tools, convenient to clean and maintain, long in service life, good in stability and low in manufacturing cost.

Description

Technical Field

[0001] The invention belongs to the technical field of vacuum sealer products, and in particular relates to a vacuum sealer for characters and a sealing method thereof. Background Art

[0002] At present, the vacuum sealing machine uses a vacuum device to evacuate the vacuum packaging bag, and then heat-seals the bag opening of the vacuum packaging bag through a heat sealing process. The vacuum sealing machine can store food in the evacuated vacuum packaging bag and maintain the vacuum degree for a long time to achieve the food preservation performance.

[0003] In the prior art, vacuum fresh-keeping machines generally need to print the production date and batch number function, otherwise the user cannot accurately know the production date and batch number of the food in the fresh-keeping bag, cannot clearly know whether the product is expired, and cannot trace the product accordingly.

[0004] For this reason, some people have also developed a printing wheel structure to print words on the fresh-keeping bag, but the printing process of the printing wheel requires a printing wheel with protruding numbers. The production cost of the printing wheel is high, and it is easy to be damaged after long-term use. The cost of replacement or repair after damage is high. At the same time, the method of using the printing wheel has a complex structure and requires a larger three-dimensional space for installation and placement, which increases the overall size of the machine, which is inconsistent with the current design concept of lightweight and miniaturized small household appliances, and cannot better meet the user's needs for convenience and miniaturized structure.

[0005] Therefore, it is urgent to develop a multifunctional vacuum sealer with characters which has simple structure, convenient use, light and compact appearance, large sealing area and hot printing characters. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a vacuum sealer with characters. The vacuum sealer has a simple structure, is easy to use, and has a light and miniaturized appearance. At the same time, it can thermally print various characters, has high heating efficiency, a large sealing area, a good sealing effect, good stability, and a low production cost.

[0007] In order to achieve the above technical objectives, the present invention is implemented according to the following technical solutions:

[0008] The vacuum sealer with characters described in the present invention comprises a base and an upper cover, the upper cover is movably hinged to one side of the base, a vacuum pump, a control circuit board and a power cord are arranged on the base, the vacuum pump is electrically connected to the control circuit board, and when the base and the upper cover are closed, the fitting surfaces are provided with an upper vacuum cavity and a lower vacuum cavity at corresponding positions, and sealing rubber rings are respectively arranged around the upper vacuum cavity and the lower vacuum cavity, a sealing heating plate assembly electrically connected to the control circuit board is arranged on the front side of the base, a heat sealing strip matched with the heating plate assembly is arranged at the corresponding position of the front side of the upper cover, a plurality of groups of character bands and a character band driving device for driving the character band to move are arranged in the upper vacuum cavity / lower vacuum cavity in the upper cover / base or in the vicinity, a plurality of protruding characters are arranged on the front of the character band, and an elastic character hot printing device for hot printing the characters of the character band onto the fresh-keeping bag to be sealed is arranged at the corresponding position of the base / upper cover.

[0009] As a further improvement of the above technology, the back of the character belt is a continuous transmission rack, and the interior of the character belt is embedded with a plurality of strong fiber ropes to prevent stretching along its extension direction.

[0010] As a further improvement of the above technology, the character tape driving device includes a left mounting bracket, a right mounting bracket, and also includes several groups of character tape adjustment devices for installing different character tapes and being able to adjust the characters to be hot-printed on the character tapes.

[0011] As a further improvement of the above technology, the character belt adjustment device includes a first character belt adjustment device and a second character belt adjustment device, wherein the first character belt adjustment device includes a first knob, a first gear sleeve transmission pair, a first character belt, and a plurality of first shaft sleeves for tensioning the first character belt, the first gear sleeve transmission pair includes a first gear mounted on a left bracket, and two large gear sleeves mounted on the front and rear sides of a right bracket, the first character belt is wound and tensioned on the first gear, the two large gear sleeves and the two first shaft sleeves, the first gear and the first knob are both fixed on the mounting bracket, and are located on the left and right sides of the left mounting bracket and are coaxially mounted, the inner side of the right bracket is provided with a mounting shaft, and the shaft sleeve is sleeved on the mounting shaft;

[0012] The second character band adjustment device includes a second knob, a second gear sleeve transmission pair, a second character band with protruding characters, and a second shaft sleeve. The second gear sleeve transmission pair includes a second gear installed on the left bracket and a small gear sleeve installed on the right bracket. The second character band is wound and tensioned on the second gear, the small gear sleeve and the second shaft sleeve. The second gear and the second knob are both on the left mounting bracket, separated on the left and right sides of the left mounting bracket and coaxially installed. A mounting shaft is provided on the inner side of the right bracket, and the second shaft sleeve is sleeved on the mounting shaft.

[0013] As a further improvement of the above technology, the first character band and the second character band are made of high temperature resistant elastic material, and protruding characters are arranged on the front side, which are different numbers arranged in sequence.

[0014] As a further improvement of the above technology, the front side of the first character band has prominent date digits of 1-31 arranged in sequence, and the front side of the second character band has prominent month digits of 1-12 arranged in sequence.

[0015] In addition, it can also be characters in other digital forms, such as a code number, etc. It can also be a graphic code of some patterns, which can be selected according to actual needs.

[0016] As a further improvement of the above technology, the elastic character thermal printing device includes an aluminum bracket, on which a character heating plate for heat-sealing characters and a high-temperature resistant thermoplastic strip wrapped around the character heating plate are installed in sequence, and left and right bracket ears are provided on the left and right sides of the aluminum bracket, and two compression spring accommodating cavities containing compression springs are symmetrically provided at the bottom of the aluminum bracket.

[0017] As a further improvement of the above technology, the sealed heating plate assembly is directly electrically connected to the AC voltage terminal of the control circuit board.

[0018] The present invention also discloses a vacuum sealing method of the vacuum sealing machine with characters, the steps of which are:

[0019] (1) First, align the seal of the fresh-keeping bag to be sealed with the seal of the vacuum sealer;

[0020] (2) Next, align the position of the characters to be sealed on the fresh-keeping bag with the character device and the elastic character thermal printing device, and manually adjust the characters to be thermally printed on the character device to the upward center position by turning the knob;

[0021] (3) Finally, close the upper cover of the vacuum sealer, start the power supply, and complete the sealing work at the sealing point and the character hot printing work.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) In the present invention, the character tape and the elastic character thermal printing device cooperate to perform the character thermal printing work. Since multiple characters are set by the character tape, and the character tape can be multiple groups, compared with the character wheel used in the past, the character tape can be installed in a narrow and long space, so that the entire sealing machine can be miniaturized in structure, and the character tape is lighter than the character wheel, and the weight of the sealing machine is also lighter, which is convenient for users to use in daily life;

[0024] (2) In the present invention, the character tape and the character tape driving device, as well as the elastic character thermal printing device, can be installed in the vacuum chamber of the upper cover or base of the vacuum sealer in an interchangeable manner, or arranged in the vicinity of the vacuum chamber. In addition, the character tape and the character tape driving device are integrally designed and can be directly removed without the need for auxiliary tools to disassemble for maintenance or cleaning, which is convenient to use and has a long service life.

[0025] (3) In the present invention, an elastic character hot printing device is used, the compression spring has good elastic restoring force, and the upper vacuum chamber and the lower vacuum chamber are provided with sealing rubber rings around them, which can better ensure that the code tape can be well attached to the fresh-keeping bag to be printed during hot printing, and can more flexibly control the uniform attachment pressure during hot stamping, ensuring uniform and consistent character hot printing effect;

[0026] (4) In the present invention, the character strip is relatively long, and a plurality of number groups can be arranged on the front side thereof, such as 1-31 numbers indicating the month, 1-12 month numbers, and other characters, such as trademarks, graphics, and other texts, which can be selected according to actual needs and have a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments:

[0028] Figure 1 The vacuum sealer with characters described in the present invention is a three-dimensional Figure 1 (open state);

[0029] Figure 2 The vacuum sealer with characters described in the present invention is a three-dimensional Figure 2 (Turn over to see the bottom);

[0030] Figure 3 The character device of the present invention is three-dimensional Figure 1 ;

[0031] Figure 4 is the above Figure 3 Schematic diagram of the decomposition of

[0032] Figure 5 The character device of the present invention is three-dimensional Figure 2 ;

[0033] Figure 6 It is a schematic diagram of the structure of the first character band in the invention;

[0034] Figure 7 is the above Figure 6 A partially cutaway stereogram of

[0035] Figure 8 is a schematic diagram of the structure of the second character band in the present invention;

[0036] Fig. 9 is a top view of the elastic character thermal printing device of the present invention;

[0037] Fig.10 is the above Fig. 9 AA section view. DETAILED DESCRIPTION

[0038] like Figure 1 , Figure 2 As shown, a vacuum sealer with characters described in the present invention comprises an upper cover 1 and a base 2, wherein the upper cover 1 is movably hinged to one side of the base 2 through a hinge 3, a vacuum pump 4, a control circuit board 10 and a power cord are arranged on the base 2, the vacuum pump 4 is electrically connected to the control circuit board 10, an upper vacuum chamber 5 and a lower vacuum chamber 6 are arranged at corresponding positions on the fitting surfaces of the base 2 and the upper cover 1 when the base 2 and the upper cover 1 are closed, sealing rings 20 are arranged around the upper vacuum chamber 5 and the lower vacuum chamber 6 respectively, a sealing heating plate assembly 7 electrically connected to the control circuit board 10 is arranged on the front side of the base 2, a heat sealing strip 30 matched with the sealing heating plate assembly 7 is arranged at a corresponding position on the front side of the upper cover 1, two groups of character bands, namely a first character band 100 and a second character band 200, and a character band driving device 8 for independently driving the two groups of character bands 100 and 200 to move are arranged in the lower vacuum chamber 6 of the base 2, and an elastic character hot printing device 9 for heat-sealing the character device 8 is arranged at a corresponding position in the upper cover 1.

[0039] like Figures 3 to 5 As shown, the character belt driving device 8 includes a left mounting bracket 81, a right mounting bracket 82, and also includes a first character belt adjusting device 83 and a second character belt adjusting device 84. The first character belt adjusting device 83 includes a first knob 831, a first gear sleeve transmission pair, and a plurality of first shaft sleeves 833. The first gear sleeve transmission pair includes a first gear 834 installed on the left mounting bracket 81 and two large gear sleeves 832 installed on the front and rear sides of the mounting bracket 82. The first character belt 100 is wound and tensioned on the first gear 834, the two large gear sleeves 832 and the two first shaft sleeves 833. The first gear 834 and the first knob 831 are both fixed on the left mounting bracket 81, separated on the left and right sides of the left mounting bracket 81 and coaxially installed. A plurality of mounting shafts 821 are provided on the inner side of the right mounting bracket 82, and the shaft sleeve 833 is sleeved on the mounting shaft 821.

[0040] The second character band adjustment device 84 includes a second knob 841, a second gear sleeve transmission pair, and a second shaft sleeve 843. The second gear sleeve transmission pair includes a second gear 844 installed on the left mounting bracket and a small gear sleeve 842 installed on the right mounting bracket 82. The second character band 200 is wound and tensioned on the second gear 843, the small gear sleeve 842 and the second shaft sleeve 843. The second gear 844 and the second knob 841 are both installed on the left mounting bracket 81, separated on the left and right sides of the left mounting bracket 81 and coaxially installed. The second shaft sleeve 843 is also sleeved on the mounting shaft 821.

[0041] like Figures 6 to 8 As shown, the back sides of the first character band 100 and the second character band 200 are both continuous transmission racks 101 / 201, and the transmission process is realized by the cooperation of the transmission racks and the gears. In addition, the interior of the first character band 100 is embedded with a plurality of strong fiber ropes 102 to prevent stretching along its extension direction, and the interior of the second character band 200 is embedded with a plurality of strong fiber ropes to prevent stretching along its extension direction (not shown in the figure).

[0042] In the invention, the first character band 100 and the second character band 200 are both made of high temperature resistant elastic material, and have protruding characters arranged in sequence on the front.

[0043] The first character tape 100 has date characters 102 with 1 to 31 digits protruding from the front thereof, and the second character tape 200 has month characters 202 with 1 to 12 digits protruding from the front thereof.

[0044] In the present invention, the characters on each character band are not limited to the characters of the month and date, and can also be characters in other digital forms, such as code numbers, etc., and can also be graphic codes of some patterns, which can be selected according to actual needs.

[0045] like Fig. 9 , Fig.10 As shown, the elastic character thermal printing device 9 includes an aluminum bracket 91, on which a character heating sheet 92 for heat-sealing characters and a high-temperature resistant thermoplastic strip 93 wrapped around the character heating sheet 92 are sequentially mounted, and left and right mounting bracket ears 94 are provided on the left and right sides of the aluminum bracket 91, and two compression spring accommodating cavities 95 containing compression springs 94 are symmetrically provided at the bottom of the aluminum bracket 91.

[0046] The sealing heating plate assembly 7 can be any heating plate element commonly used in the industry, and any one that can meet the heating sealing requirements can be selected.

[0047] The present invention also discloses a vacuum sealing method of the vacuum sealing machine with characters, the steps of which are:

[0048] (1) First, align the seal of the fresh-keeping bag to be sealed with the seal of the vacuum sealer;

[0049] (2) Next, align the position of the characters to be sealed on the fresh-keeping bag with the character belt and the elastic character thermal printing device 9, and manually adjust the characters to be thermally printed on the character belts 100 and 200 to the upward center position with the manual knob 831 / 841;

[0050] (3) Finally, close the upper cover 1 of the vacuum sealer, start the power supply, and complete the sealing work and character hot printing work at the sealing point at the same time.

[0051] The vacuum sealer with characters described in the present invention has a simple structure, a light and compact appearance, is easy and reliable to use, can thermally print various characters, has high heating efficiency, can be disassembled without additional tools, is easy to clean and maintain, has a long service life, good stability, and low manufacturing cost.

[0052] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention also includes these changes and modifications.

Claims

1. A vacuum sealer with characters, comprising a base and an upper cover, the upper cover is movably hinged to one side of the base, a vacuum pump, a control circuit board and a power cord are arranged on the base, the vacuum pump is electrically connected to the control circuit board, an upper vacuum cavity and a lower vacuum cavity are arranged at corresponding positions on the fitting surface when the base and the upper cover are closed, sealing rubber rings are arranged around the upper vacuum cavity and the lower vacuum cavity respectively, a sealing heating sheet assembly electrically connected to the control circuit board is arranged on the front side of the base, a heat sealing strip matched with the heating sheet assembly is arranged at a corresponding position on the front side of the upper cover, and the characteristics are: A plurality of groups of character belts and a character belt driving device for driving the movement of the character belts are arranged in the upper vacuum cavity / lower vacuum cavity in the upper cover / base or in the vicinity thereof, a plurality of protruding characters are arranged on the front of the character belt, and an elastic character thermal printing device for thermally printing the characters of the character belt onto the fresh-keeping bag to be sealed is arranged in the lower vacuum cavity / upper vacuum cavity at the corresponding position of the base / upper cover.

2. The vacuum sealer with characters according to claim 1, characterized in that: The back of the character belt is a continuous transmission rack, and a plurality of strong fiber ropes for preventing stretching are embedded in the interior of the character belt along its extending direction.

3. The vacuum sealer with characters according to claim 2, characterized in that: The character belt driving device comprises a left mounting bracket, a right mounting bracket, and also comprises a plurality of groups of character belt adjusting devices which are used to install different character belts and can respectively adjust the characters to be hot-printed on the character belts.

4. The vacuum sealer with characters according to claim 2, characterized in that: The character belt adjustment device comprises a first character belt adjustment device and a second character belt adjustment device, wherein the first character belt adjustment device comprises a first knob, a first gear sleeve transmission pair, a first character belt, and a plurality of first shaft sleeves, the first gear sleeve transmission pair comprises a first gear mounted on a left bracket, and two large gear sleeves mounted on the front and rear sides of a right bracket, the first character belt is wound and tensioned on the first gear, the two large gear sleeves and the two first shaft sleeves, the first gear and the first knob are both fixed on the mounting bracket, and are located on the left and right sides of the left mounting bracket and are coaxially mounted, the inner side of the right bracket is provided with a mounting shaft, and the shaft sleeve is sleeved on the mounting shaft; The second character band adjustment device includes a second knob, a second gear sleeve transmission pair, a second character band with protruding characters, and a second shaft sleeve. The second gear sleeve transmission pair includes a second gear installed on the left bracket and a small gear sleeve installed on the right bracket. The second character band is wound and tensioned on the second gear, the small gear sleeve and the second shaft sleeve. The second gear and the second knob are both on the left mounting bracket, separated on the left and right sides of the left mounting bracket and coaxially installed. A mounting shaft is provided on the inner side of the right bracket, and the second shaft sleeve is sleeved on the mounting shaft.

5. The vacuum sealer with characters according to claim 4, characterized in that: The first character band and the second character band are made of high temperature resistant elastic material, and have protruding characters arranged in sequence on the front.

6. The vacuum sealer with characters according to claim 5, characterized in that: The front side of the first character band has 1-31 date digits arranged in sequence and in a prominent manner, and the front side of the second character band has 1-12 month digits arranged in sequence and in a prominent manner.

7. The vacuum sealer with characters according to claim 1, characterized in that: The elastic character thermal printing device includes an aluminum bracket, on which a character heating sheet for heat-sealing characters and a high-temperature resistant thermoplastic strip wrapped around the character heating sheet are sequentially mounted, left and right bracket ears are provided on the left and right sides of the aluminum bracket, and two compression spring accommodating cavities containing compression springs are symmetrically provided at the bottom of the aluminum bracket.

8. The vacuum sealing method of the vacuum sealer with characters according to any one of claims 1 to 7, comprising the steps of: (1) First, align the seal of the fresh-keeping bag to be sealed with the seal of the vacuum sealer; (2) Next, align the position of the characters to be sealed on the fresh-keeping bag with the character device and the elastic character thermal printing device, and manually adjust the characters to be thermally printed on the character device to the upward center position by turning the knob; (3) Finally, close the upper cover of the vacuum sealer, start the power supply, and complete the sealing work at the sealing point and the character hot printing work.

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