Plastic heat-sealing and label printing all-in-one machine with automatic temperature control

Abstract

The utility model discloses a plastic heat seal and label printing all -in -one of automatic temperature control includes main part, movable element, temperature sensing head, heating head, temperature control assembly and printing assembly. Movable element and main part swing connection, temperature sensing head and heating head are opposite along the first direction and set up, one of them is set up in the main part, and the other is set up in movable element, and temperature sensing head or heating head follows movable element and swing, to clamp plastic bag, temperature control assembly and temperature sensing head and heating head electric connection, and preset has preset temperature, heating head includes heating state and off state, and temperature sensing head has temperature sensor for monitoring response temperature, when response temperature is greater than preset temperature, and temperature control assembly controls heating head to be in off state, when response temperature is less than preset temperature, and temperature control assembly controls heating head to be in heating state. Through above -mentioned design can control the temperature of heating head, prevent the temperature of heating head in the use process and the condition that plastic bag is rapidly scalded and is worn.

Description

Technical Field

[0001] This utility model relates to the field of portable heat sealing machine technology, and in particular to an integrated machine for automatic temperature control of plastic heat sealing and label printing. Background Technology

[0002] When sealing plastic bags in daily life, people can usually use a portable heat sealer to hold the bag opening on both sides and pull to seal it easily. However, this process can easily burn through thinner plastic bags due to variations in bag thickness, and it also requires considerable experience in applying pressure. Traditional heat sealers also lack label printing capabilities; if users need to mark the heat-sealed plastic bags, a separate device is required, which is inconvenient. Utility Model Content

[0003] To address the problem of easily burning through thin plastic bags in existing technologies, this invention provides an integrated plastic heat-sealing and label printing machine with automatic temperature control.

[0004] The automatic temperature-controlled plastic heat-sealing and label printing all-in-one machine provided in this application includes a main body, a movable part, a temperature sensing head, a heating head, a temperature control component, and a printing component. The movable part is movably connected to the main body; the temperature sensing head and the heating head are arranged opposite each other along a first direction, one located on the main body and the other on the movable part, and the temperature sensing head or the heating head moves with the movable part to bring them closer together for clamping the plastic bag; the temperature control component is electrically connected to the temperature sensing head and the heating head and has a preset temperature; the heating head includes a heating state and a closed state, and the temperature sensing head has a temperature sensor for monitoring the sensed temperature. When the sensed temperature is greater than the preset temperature, the temperature control component controls the heating head to be in the closed state; when the sensed temperature is less than the preset temperature, the temperature control component controls the heating head to be in the heating state; the printing component is connected to the main body and has a printing channel, the main body has a label opening, and the printing outlet is aligned and connected to the label opening.

[0005] In some embodiments, the movable component includes a first predetermined position and a second predetermined position. When the movable component is in the first predetermined position, the temperature sensing head and the heating head are far apart to form a heat-sealing gap. When the movable component is in the second predetermined position, the temperature sensing head and the heating head are close together to clamp the two sides of the plastic bag. The heating head includes a first base and a heating wire disposed on the first base, and the temperature sensing head includes a second base and a temperature sensor disposed on the second base. When the movable part is in the second predetermined position, the heating wire and the temperature sensor abut against each other along the first direction.

[0006] In some embodiments, the section of the heating wire perpendicular to its extension direction is designated as a first section, the side of the first section relative to the side of the temperature sensing head is designated as a first side, and the first side is a straight line; The length of the first side is L, where 2 mm ≤ L ≤ 5 mm.

[0007] In some embodiments, the first cross section is arc-shaped, and the side of the first cross section away from the temperature sensing head is the second side, which is arc-shaped.

[0008] In some embodiments, the heating wire has a U-shaped structure, including a horizontal part and a vertical part, with the vertical part connected to both ends of the horizontal part; The first base body protrudes along the first direction to form a protrusion for abutting against the temperature sensing head. The protrusion matches the shape of the heating wire. The protrusion has an insertion groove and an embedding groove. The longitudinal part is inserted into the insertion groove, and the transverse part is embedded in the embedding groove.

[0009] In some embodiments, after the horizontal portion is embedded in the embedding groove, the outer surface of the horizontal portion coincides with the outer surface of the protrusion; The first base body is also provided with a conductive element for connecting to a power source. The conductive element is at least partially disposed in the insertion slot and connected to the longitudinal portion.

[0010] In some embodiments, the heating head is movably connected to the main body, and during the process of the movable part moving from a first predetermined position to a second predetermined position, the temperature sensing head abuts against the heating head, so that the heating head moves from a third predetermined position to a fourth predetermined position; An elastic element is provided between the main body and the heating head to maintain the heating head in the third predetermined position. The main body is provided with an electrode for connecting to a power source. When the heating head is in the third predetermined position, the electrode is separated from the conductive element. When the heating head is in the fourth predetermined position, the electrode is connected to the conductive element.

[0011] In some embodiments, the automatically temperature-controlled plastic heat sealing and label printing all-in-one machine further includes a first roller and a second roller arranged opposite to each other. The first roller is disposed on the movable part, and the second roller is disposed on the main body. When the movable part is in the second predetermined position, the first roller and the second roller press against each other.

[0012] In some embodiments, the automatic temperature-controlled plastic heat sealing and label printing all-in-one machine further includes an anti-stick cloth, on which the sides of the temperature sensing head and the heating head that are close to each other are covered with the anti-stick cloth, and the anti-stick cloth covers the heating wire and the temperature sensor. The heating head also includes a first locking member for fixing the anti-stick cloth, and the temperature sensing head is provided with a second locking member for fixing the anti-stick cloth.

[0013] In some embodiments, the automatically temperature-controlled plastic heat sealing and label printing all-in-one machine further includes a cover, which is detachably connected to the main body and covers the movable part and the label opening; The cover is provided with a limiting structure. When the cover is connected to the main body, the limiting structure engages with the movable part to restrict the movable part to the first predetermined position.

[0014] Compared with existing technologies, the automatic temperature-controlled plastic heat-sealing and label printing all-in-one machine provided by this utility model has the following advantages: the heating head includes a heating state and an off state, and the temperature sensing head has a temperature sensor for monitoring the sensed temperature. When the sensed temperature is higher than the preset temperature, the temperature control component controls the heating head to be in the off state; when the sensed temperature is lower than the preset temperature, the temperature control component controls the heating head to be in the heating state. This design allows for temperature control of the heating head, preventing the plastic bag from being quickly scalded by excessively high temperatures during use. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of one embodiment of this application; Figure 2 This is a schematic diagram of the structure of a heating head provided in one embodiment of this application; Figure 3 This is an exploded structural diagram of a heating head provided in one embodiment of this application; Figure 4 This is a schematic diagram of the cut structure of the heating wire provided in one embodiment of this application; Figure 5 This is a schematic diagram of the overall three-dimensional structure of one embodiment of this application; Figure 6 This is a schematic diagram of the structure of the temperature sensor and the moving part provided in one embodiment of this application; Figure 7 This is a schematic diagram of the disassembled structure of the temperature sensor and the moving part provided in one embodiment of this application; Figure 8 This is a schematic diagram of the overall planar structure of the movable component when it is in a first predetermined position, according to one embodiment of this application. Figure 9This is a schematic diagram of the overall planar structure of the movable component when it is in the second predetermined position, according to one embodiment of this application. Figure 10 This is a structural schematic diagram of an embodiment of the connection state between the cover and the main body provided in this application; Figure 11 This is a schematic diagram of the overall structure of the cover after being cut in one embodiment of this application; Figure 12 yes Figure 11 Enlarged schematic diagram of the structure at point A in the middle.

[0016] 100. Main body; 101. Label opening; 102. Electrode; 103. Sliding cavity; 200. Movable part; 300. Heating head; 31. First seat; 311. Conductive part; 312. Protrusion; 32. Heating wire; 321. Horizontal part; 322. Vertical part; 33. First locking part; 400. Temperature sensor; 41. Second seat; 42. Temperature sensor; 43. Second locking part; 500. Printing assembly; 501. Printing channel; 600. Elastic part; 700. First roller; 800. Second roller; 900. Anti-stick cloth; 1000. Cover; 01. Heat sealing gap; 02. Insertion groove; 03. Embedding groove; 04. Restriction structure; X, First direction; S, First cross section; S01, First side; S02, Second side. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] like Figure 1 The illustrated automatic temperature-controlled plastic heat-sealing and label printing all-in-one machine includes a main body 100, a movable part 200, a temperature sensing head 400, a heating head 300, a temperature control component, and a printing component 500. The movable part 200 is movably connected to the main body 100. The temperature sensing head 400 and the heating head 300 are arranged opposite each other along a first direction X, with one located on the main body 100 and the other on the movable part 200. The temperature sensing head 400 or the heating head 300 moves with the movable part 200, bringing them closer together to clamp the plastic bag. Figure 1 In the embodiment shown, one end of the movable member 200 is rotatably connected to the main body 100 shaft, the temperature sensing head 400 is disposed at the end of the movable member 200 away from the main body 100, and the heating head 300 is disposed on the main body 100. The movable member 200 rotates at one end to cause the other end to drive the temperature sensing head 400 to rise or fall relative to the heating head 300, thereby causing the temperature sensing head 400 and the heating head 300 to move closer or further away from each other.

[0024] The temperature control component is electrically connected to the temperature sensor 400 and the heating head 300, and has a preset temperature. The temperature control component can be a module integrating an MCU chip, which receives temperature data transmitted from the temperature sensor 400 and compares this data with its internally set preset temperature data to control the operating state of the heating head 300. It should be noted that the aforementioned preset temperature is pre-set for the temperature control component; specifically, this preset temperature can be set between 150℃ and 200℃. Within this temperature range, the plastic bag is less likely to be immediately burned through.

[0025] The heating head 300 includes a heating state and an off state, and the temperature sensing head 400 has a temperature sensor 42 for detecting the sensed temperature. When the sensed temperature is higher than the preset temperature, the temperature control component controls the heating head 300 to be in the off state; when the sensed temperature is lower than the preset temperature, the temperature control component controls the heating head 300 to be in the heating state. This design allows for temperature control of the heating head 300, preventing the heating head 300 from overheating and quickly burning through the plastic bag during use.

[0026] Please continue reading. Figure 1 The printing component 500 is connected to the main body 100 and has a printing channel 501. The main body 100 is provided with a label opening 101, and the printing outlet is aligned and connected to the label opening 101. Specifically, the printing component 500 can be a common thermal label printing component 500, and the printed labels are discharged through the printing channel 501 and the label opening 101. In this way, after heat-sealing a plastic bag, the user can quickly print the corresponding label using this automatically temperature-controlled plastic heat-sealing and label printing all-in-one machine, without the need for other equipment, making it convenient and fast.

[0027] The technical details of each component will be introduced below.

[0028] In some implementations, such as Figure 5 , Figure 8 , Figure 9 As shown, the movable component 200 includes a first predetermined position and a second predetermined position (…). Figure 8 Located in the first predetermined position, Figure 9 (In the second predetermined position). When the movable part 200 is in the first predetermined position, the temperature sensing head 400 and the heating head 300 are far apart to form a heat-sealing gap 01 (that is, the gap between the temperature sensing head 400 and the heating head 300 for inserting the plastic bag opening); when the movable part 200 is in the second predetermined position, the temperature sensing head 400 and the heating head 300 are close together to clamp the two sides of the plastic bag. It should be noted that the specific operating steps of the automatic temperature-controlled plastic heat-sealing and label printing all-in-one machine provided in this application are as follows: first, insert the opening of the plastic bag into the heat-sealing gap 01, and then press the movable part 200 down to the second predetermined position. At this time, the temperature sensing head 400 and the heating head 300 will clamp the opening of the plastic bag. Under the action of the heat of the heating head 300, the opening of the plastic bag will partially melt, thereby sealing the opening of the plastic bag. Then, by pulling the plastic bag along the direction of the opening, the opening of the bag can be sealed.

[0029] like Figure 1 , Figure 2 , Figure 3 As shown, the heating head 300 includes a first base 31 and a heating wire 32 disposed on the first base 31; as Figure 5 , Figure 6 , Figure 7 As shown, the temperature sensing head 400 includes a second base 41 and a temperature sensor 42 disposed on the second base 41. When the movable part 200 is in a second predetermined position, the heating wire 32 and the temperature sensor 42 are pressed against each other along the first direction X. In practical applications, when heat-sealing a plastic bag, the temperature sensor 42 and the heating wire 32 are separated only by the thickness of the plastic bag opening. The temperature sensor 42 can promptly sense the temperature of the plastic bag opening during heat sealing, ensuring that the temperature of the heating head 300 will not burn through the plastic bag opening.

[0030] In some implementations, such as Figure 3 , Figure 4 As shown, the cross-section of the heating wire 32 perpendicular to its extension direction is designated as the first cross-section S, and the side of the first cross-section S relative to the temperature sensing head 400 is designated as the first side S01, which is a straight line. The length of the first side S01 is set to L, where 2 mm ≤ L ≤ 5 mm. Traditionally, the cross-section of the heating wire 32 is usually circular, resulting in a small contact area with the plastic bag during heat sealing. This makes it easy to burn through the plastic bag and cause a cutting effect (when the contact area between the heating wire 32 and the plastic bag is too small, the heating wire 32 easily burns through the plastic bag, and as the plastic bag is pulled, it creates a cutting-like effect during heat sealing), directly severing the bag opening. This application, through the above design, ensures that the heating wire 32 has a larger contact area with the plastic bag during heat sealing, reducing the likelihood of a cutting effect. After heat sealing, the adhesive area of ​​the plastic bag opening is also larger, resulting in a better sealing effect.

[0031] In some implementations, such as Figure 4 As shown, the first cross-section S is arc-shaped, and the side of the first cross-section S away from the temperature sensing head 400 is the second side S02, which is also arc-shaped. The heating wire 32, with this structural design, is less prone to deformation during heating compared to a thin sheet structure.

[0032] In some implementations, such as Figure 2 , Figure 3As shown, the heating wire 32 has a U-shaped structure, including a horizontal portion 321 and a vertical portion 322. Both ends of the horizontal portion 321 are connected to the vertical portion 322. Correspondingly, the first base 31 protrudes along the first direction X to form a protrusion 312 for abutting against the temperature sensing head 400. The protrusion 312 matches the shape of the heating wire 32. The protrusion 312 has an insertion groove 02 and an embedding groove 03. The vertical portion 322 is inserted into the insertion groove 02, and the horizontal portion 321 is embedded in the embedding groove 03. In practical applications, the first base 31 can be made of a high-temperature resistant and heat-insulating material, such as ceramic. The horizontal portion 321 of the heating wire 32 is embedded in the embedding groove 03, and the vertical portion 322 is inserted into the insertion groove 02, which can effectively fix the heating wire 32. The U-shaped heating wire 32 is also less prone to slippage during use. The vertical portions 322 at both ends of the horizontal portion 321 can also facilitate electrical connection to the power supply.

[0033] In some implementations, please refer to Figure 2 , Figure 3 To understand this, after the horizontal part 321 is inserted into the insertion groove 03, the outer side of the horizontal part 321 coincides with the outer side of the convex part 312. In this way, when the heating head 300 and the temperature sensing head 400 clamp the opening of the plastic bag, after the horizontal part 321 of the heating wire 32 is pressed against the plastic bag, the convex part 312 will also be pressed against the plastic bag, preventing the heating wire 32 from pressing the plastic bag too tightly and breaking the opening of the plastic bag.

[0034] Please continue reading. Figure 2 , Figure 3 The first base 31 is also provided with a conductive element 311 for connecting to a power source. The conductive element 311 is at least partially disposed in the insertion slot 02 and connected to the longitudinal part 322.

[0035] In some implementations, such as Figure 1 As shown, the heating head 300 is movably connected to the main body 100. During the movement of the movable member 200 from a first predetermined position to a second predetermined position, the temperature sensing head 400 abuts against the heating head 300, causing the heating head 300 to move from a third predetermined position to a fourth predetermined position. Furthermore, an elastic member 600 is provided between the main body 100 and the heating head 300 to maintain the heating head 300 in the third predetermined position. The main body 100 is provided with an electrode 102 for connecting to a power source. When the heating head 300 is in the third predetermined position, the electrode 102 is separated from the conductive member 311; when the heating head 300 is in the fourth predetermined position, the electrode 102 is connected to the conductive member 311. Figure 1In the illustrated embodiment, the main body 100 is provided with a sliding cavity 103. The heating head 300 is at least partially disposed inside the sliding cavity 103 and can slide within the sliding cavity 103 along the first direction X. The electrode 102 is disposed at the bottom of the sliding cavity 103 and is disposed opposite to one end of the conductive member 311 along the first direction X. The other end of the conductive member 311 is connected to the longitudinal portion 322 of the heating wire 32. One side of the elastic member 600 abuts against the heating head 300, and the other side abuts against the bottom of the sliding cavity 103. With the above design, when the movable member 200 moves from the first predetermined position to the second predetermined position, the temperature sensing member will press down the heating head 300, causing the heating head 300 to slide down to the fourth predetermined position, thereby causing the conductive member 311 to contact the electrode 102. At this time, the circuit of the heating wire 32 is connected, and heating begins. The above process realizes the automatic connection of the heating head 300 circuit during the pressing down of the movable member 200, which is convenient for user operation.

[0036] It should be noted that the main body 100 is also equipped with a battery, the aforementioned electrode 102 is electrically connected to the battery, and the heating wire 32 is powered by the battery.

[0037] In some implementations, such as Figure 5 , Figure 8 , Figure 9 As shown, the automatic temperature-controlled plastic heat-sealing and label printing all-in-one machine provided in this application also includes a first roller 700 and a second roller 800 arranged opposite to each other. The first roller 700 is disposed on the movable part 200, and the second roller 800 is disposed on the main body 100. When the movable part 200 is in a second predetermined position, the first roller 700 and the second roller 800 press against each other. In practical applications, the first roller 700 and the second roller 800 can clamp and fix the plastic bag during the heat-sealing process, preventing the bag opening from shifting during the pulling process. At the same time, after the first roller 700 and the second roller 800 press against each other, it can prevent the temperature sensing head 400 from further pressing down on the heating head 300, causing excessive pressure between the temperature sensing head 400 and the heating head 300, which could lead to the plastic bag being crushed during the heat-sealing process.

[0038] Furthermore, the first roller 700 and the second roller 800 can be made of a heat-conducting metal material, such as aluminum, iron, or copper. The rolling paths of the first roller 700 and the second roller 800 relative to the bag opening coincide with the heat-sealing path of the heating head 300. In this way, the first roller 700 and the second roller 800 can press the heat-sealed area and absorb excess heat during the heat-sealing process, allowing the heat-sealed area of ​​the bag opening to cool and bond rapidly.

[0039] In some implementations, such as Figure 2 , Figure 3 and Figure 6 , Figure 7As shown, the automatic temperature-controlled plastic heat sealing and label printing all-in-one machine provided in this application also includes an anti-stick cloth 900. The anti-stick cloth 900 covers the sides of the temperature sensing head 400 and the heating head 300 that are close to each other. The anti-stick cloth 900 covers the heating wire 32 and the temperature sensor 42. This design prevents the molten plastic from sticking to the heating wire 32 and the temperature sensor 42, thus preventing it from affecting the heating of the heating wire 32 and the sensitivity of the temperature sensor 42. At the same time, the anti-stick cloth 900 can effectively separate the molten plastic, ensuring that the molten plastic can effectively seal the bag opening.

[0040] Please continue reading. Figure 2 , Figure 3 and Figure 6 , Figure 7 The heating head 300 also includes a first locking member 33 for fixing the anti-adhesive cloth 900, and the temperature sensing head 400 is provided with a second locking member 43 for fixing the anti-adhesive cloth 900. The first locking member 33 and the second locking member 43 are detachably assembled to the first base 31 and the second base 41, respectively, to facilitate the replacement of the anti-adhesive cloth 900 (it should be noted that the above-mentioned anti-adhesive cloth 900 is a common product in the art, and its anti-adhesive performance will decrease after long-term use, so it needs to be replaced). In the embodiment shown in the above figures, the first locking member 33 is assembled to the first base 31 by screws, pressing the edge of the anti-adhesive cloth 900 to the first base 31; the second locking member 43 is a collar, which is sleeved on the outside of the second base 41, pressing and fixing the edge of the anti-adhesive cloth 900 to the second base 41.

[0041] In some implementations, such as Figure 10 , Figure 11 , Figure 12 As shown, the automatic temperature-controlled plastic heat sealing and label printing all-in-one machine provided in this application also includes a cover 1000, which is detachably connected to the main body 100 and covers the movable part 200 and the label opening 101. In this way, the movable part 200 and the label opening 101 can be protected when not in use.

[0042] Please continue reading. Figure 11 , Figure 12 The cover 1000 is provided with a limiting structure 04. When the cover 1000 is connected to the main body 100, the limiting structure 04 engages with the movable member 200 to limit the movable member 200 to a first predetermined position. Figure 11 , Figure 12In the illustrated embodiment, the aforementioned limiting structure 04 is a protruding structure that protrudes towards the inside of the cover 1000. When the cover 1000 is placed on the main body 100, the limiting structure 04 can abut against the side of the movable member 200 near the heating head 300, thereby preventing the movable member 200 from moving from the first predetermined position to the second predetermined position. This prevents the movable member 200 from accidentally moving to the second predetermined position under the action of gravity or the action of abutment or vibration of other objects when the automatic temperature-controlled plastic heat sealing and label printing all-in-one machine is not in use, thus causing the heating head 300 to start heating. This ensures the safety of the automatic temperature-controlled plastic heat sealing and label printing all-in-one machine when it is not in use.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An all-in-one machine for automatically temperature-controlled plastic heat sealing and label printing, characterized in that, include: Main body (100); The movable component (200) is movably connected to the main body (100); A temperature sensing head (400) and a heating head (300) are arranged opposite to each other along a first direction (X), one of which is disposed on the main body (100) and the other is disposed on the movable member (200). The temperature sensing head (400) or the heating head (300) moves with the movable member (200) to bring the temperature sensing head (400) and the heating head (300) closer to each other for clamping the plastic bag. The temperature control component is electrically connected to the temperature sensing head (400) and the heating head (300), and has a preset temperature. The heating head (300) includes a heating state and a closed state. The temperature sensing head (400) has a temperature sensor (42) for monitoring the sensing temperature. When the sensing temperature is greater than the preset temperature, the temperature control component controls the heating head (300) to be in the closed state. When the sensing temperature is less than the preset temperature, the temperature control component controls the heating head (300) to be in the heating state. A printing component (500) is connected to the main body (100) and has a printing channel (501). The main body (100) is provided with a label opening (101), and the printing outlet is aligned and connected to the label opening (101).

2. The automatic temperature-controlled plastic heat sealing and label printing integrated machine according to claim 1, characterized in that, The movable part (200) includes a first predetermined position and a second predetermined position. When the movable part (200) is in the first predetermined position, the temperature sensing head (400) and the heating head (300) are far apart to form a heat-sealing gap (01). When the movable part (200) is in the second predetermined position, the temperature sensing head (400) and the heating head (300) are close together to clamp the two sides of the plastic bag. The heating head (300) includes a first base (31) and a heating wire (32) disposed on the first base (31). The temperature sensing head (400) includes a second base (41) and a temperature sensor (42) disposed on the second base (41). When the movable part (200) is in the second predetermined position, the heating wire (32) and the temperature sensor (42) abut against each other along the first direction (X).

3. The automatic temperature-controlled plastic heat sealing and label printing integrated machine according to claim 2, characterized in that, The section of the heating wire (32) perpendicular to its extension direction is designated as the first section (S), and the side of the first section (S) relative to the temperature sensing head (400) is designated as the first side (S01), which is a straight line. The length of the first side (S01) is L, where 2 mm ≤ L ≤ 5 mm.

4. The automatic temperature-controlled plastic heat sealing and label printing integrated machine according to claim 3, characterized in that, The first cross section (S) is arc-shaped, and the side of the first cross section (S) away from the temperature sensing head (400) is the second side (S02), which is arc-shaped.

5. The automatic temperature-controlled plastic heat sealing and label printing integrated machine according to claim 2, characterized in that, The heating wire (32) has a U-shaped structure, including a horizontal part (321) and a vertical part (322), and the two ends of the horizontal part (321) are connected to the vertical part (322). The first base (31) protrudes along the first direction (X) to form a protrusion (312) for abutting against the temperature sensing head (400). The protrusion (312) matches the shape of the heating wire (32). The protrusion (312) has an insertion groove (02) and an embedding groove (03). The vertical part (322) is inserted into the insertion groove (02), and the horizontal part (321) is embedded in the embedding groove (03).

6. The automatic temperature-controlled plastic heat sealing and label printing integrated machine according to claim 5, characterized in that, After the horizontal part (321) is inserted into the insertion groove (03), the outer side of the horizontal part (321) coincides with the outer side of the protrusion (312); The first base (31) is also provided with a conductive element (311) for connecting to a power source. The conductive element (311) is at least partially disposed in the insertion slot (02) and connected to the longitudinal part (322).

7. The automatic temperature-controlled plastic heat sealing and label printing integrated machine according to claim 6, characterized in that, The heating head (300) is movably connected to the main body (100). During the process of the movable part (200) moving from the first predetermined position to the second predetermined position, the temperature sensing head (400) abuts against the heating head (300) so that the heating head (300) moves from the third predetermined position to the fourth predetermined position. An elastic element (600) for maintaining the heating head (300) in the third predetermined position is provided between the main body (100) and the heating head (300). The main body (100) is provided with an electrode for connecting to a power source. When the heating head (300) is in the third predetermined position, the electrode is separated from the conductive element (311). When the heating head (300) is in the fourth predetermined position, the electrode is connected to the conductive element (311).

8. The automatic temperature-controlled plastic heat sealing and label printing integrated machine according to claim 2, characterized in that, The automatic temperature-controlled plastic heat sealing and label printing all-in-one machine also includes a first roller (700) and a second roller (800) arranged opposite to each other. The first roller (700) is disposed on the movable part (200), and the second roller (800) is disposed on the main body (100). When the movable part (200) is in the second predetermined position, the first roller (700) and the second roller (800) press against each other.

9. The automatic temperature-controlled plastic heat sealing and label printing integrated machine according to claim 2, characterized in that, The automatic temperature-controlled plastic heat sealing and label printing all-in-one machine also includes an anti-stick cloth (900). The side of the temperature sensing head (400) and the heating head (300) that are close to each other are covered with the anti-stick cloth (900). The anti-stick cloth (900) covers the heating wire (32) and the temperature sensor (42). The heating head (300) further includes a first locking member (33) for fixing the anti-stick cloth (900), and the temperature sensing head (400) is provided with a second locking member (43) for fixing the anti-stick cloth (900).

10. The automatic temperature-controlled plastic heat-sealing and label printing integrated machine according to claim 2, characterized in that, The automatic temperature-controlled plastic heat sealing and label printing all-in-one machine also includes a cover (1000), which is detachably connected to the main body (100) and covers the movable part (200) and the label opening (101). The cover (1000) is provided with a limiting structure (04). When the cover (1000) is connected to the main body (100), the limiting structure (04) engages with the movable part (200) to limit the movable part (200) to the first predetermined position.

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