Waterproof bag sealing tool for defrosting temperature controller

Abstract

The utility model relates to defrosting temperature controller production and processing technical field discloses a waterproof bag seal mouth frock for defrosting temperature controller, including hot pressing head and seal mouth seat, hot pressing head includes the first hot pressing spare and second hot pressing spare of separate settings, the first hot pressing spare is fixed at the first position of heating plate, and the second hot pressing spare includes the first hot pressing head and second hot pressing head for switching setting on heating plate second position, seal mouth seat includes the first seal mouth spare and second seal mouth spare of separate settings, the first seal mouth spare is fixed on the base, and with first hot pressing spare position corresponds, second seal mouth spare has first rotation center and first seal mouth seat and second seal mouth seat that rotate to heating plate second position below around first rotation center on it. The utility model can guarantee that one hot pressing seal mouth machine is compatible with the waterproof bag seal mouth operation of temperature controller of unilateral line and double -sided line simultaneously, and switching operation is simple.

Description

Technical Field

[0001] This utility model relates to the field of defrosting thermostat manufacturing technology, and in particular to a waterproof bag sealing tool for defrosting thermostats. Background Technology

[0002] Due to the special environment in which defrosting thermostats are used, their temperature sensors and thermal fuses need to be waterproofed. The common waterproofing method is to use a heat-sealing machine to heat-seal the temperature sensor and thermal fuse inside a PVC waterproof bag.

[0003] Our patent, CN222474663U, discloses a sealing device for a waterproof bag used in thermostats, comprising a base, a driving component, a hot press head, and a sealing seat. Both the hot press head and the sealing seat have side-by-side, vertically corresponding left and right mating plates. Multiple parallel semi-cylindrical grooves are formed on the end face of the left mating plate of both the hot press head and the sealing seat. A guide plate is provided on the outer side of the left mating plate of the sealing seat, and multiple lead wire guide grooves corresponding to the semi-cylindrical grooves on the left mating plate of the sealing seat are formed on the guide plate. Through the mating of the hot press head and the sealing seat, simultaneous sealing of both ends of the PVC sleeve is achieved, improving production efficiency. However, the sealing fixture composed of the aforementioned hot press head and sealing seat, because it only has a semi-cylindrical groove on the left connecting plate, can only perform waterproof sealing treatment on two-wire or three-wire thermostats with single-sided wiring. When the order requires thermostats with double-sided wiring, the workshop usually needs to set up another hot press sealing machine and equip it with sealing fixtures with semi-cylindrical grooves on both the left and right connecting plates. This results in the two hot press sealing machines being incompatible with each other. If only one type of thermostat is produced within the order cycle, one of the hot press sealing machines will be idle, occupying the operating position, and will not be able to increase production capacity. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a waterproof bag sealing fixture for defrosting thermostats. Depending on the model requirements, it can be switched to meet the corresponding sealing needs, ensuring that a single heat-sealing machine is compatible with both single-sided and double-sided wired thermostat waterproof bag sealing operations. The switching operation is simple and facilitates widespread application.

[0005] The technical solution of this utility model is as follows: a waterproof bag sealing fixture for a defrosting thermostat, comprising a hot press head located on a heating plate and a sealing seat located on a base. The hot press head includes a first hot press component and a second hot press component separately disposed. The first hot press component is fixed at a first position on the heating plate. The second hot press component includes a first hot press head and a second hot press head for switching between positions on a second position on the heating plate. The end face of the first hot press component has several upper semi-cylindrical grooves I, the end face of the first hot press head has several upper semi-cylindrical grooves II, and the end face of the second hot press head has a hot press plane. The sealing seat includes a first sealing component and a second sealing component separately disposed. The end face of the first sealing component has a lower semi-cylindrical groove I corresponding to the upper semi-cylindrical grooves I. The second sealing component has a first rotation center and a first sealing seat and a second sealing seat that rotate sequentially around the first rotation center to a position below the second position on the heating plate. The end face of the first sealing seat has several lower semi-cylindrical grooves II, and the end face of the second sealing seat has a sealing plane I. Depending on the processing requirements of single-sided or double-sided wiring of the thermostat, a first or second hot press head can be selectively installed at the second position of the heating plate. At the same time, by rotating the second sealing component, the first sealing seat can be engaged with the first hot press head, or the second sealing seat can be engaged with the second hot press head. This allows the hot press sealing machine with this sealing fixture to be compatible with sealing waterproof bags of thermostats with single-sided and double-sided wiring. When using two sealing machines, the above switching operation can be used to produce one model of thermostat simultaneously, or two models of thermostats separately, ensuring optimal production capacity.

[0006] A first guide plate is provided on the side of the first sealing member away from the second sealing member, and a second guide plate is provided between the first sealing seat and the second sealing seat. The first and second guide plates are provided with lead wire guide grooves corresponding to the lower semi-cylindrical groove one and the lower semi-cylindrical groove two. When sealing a waterproof bag for a thermostat with wires exiting from both sides, the lead wire guide grooves on the first and second guide plates can jointly separate and position the lead wires of the thermostat with wires exiting from both sides. When sealing a waterproof bag for a thermostat with wires exiting from one side, the lead wire guide groove on the first guide plate separates and positions the lead wire, and the second guide plate limits the waterproof bag at the non-lead wire end, thereby ensuring the accuracy of the sealing.

[0007] A rotating seat is fixed at the lower end of the second guide plate. The rotating seat is rotatably connected to the base via a first slewing bearing. The center of the first slewing bearing is the first rotation center. The first sealing seat and the second sealing seat are fixed on the rotating seats on both sides of the second guide plate.

[0008] The rotating seat is provided with an elastic positioning element, and the base is provided with two positioning grooves symmetrical about the first rotation center. The free end of the elastic positioning element cooperates with the positioning groove.

[0009] A waterproof bag sealing fixture for a defrosting thermostat includes a hot press head located on a heating plate and a sealing seat located on a base. The hot press head includes a first hot press component and a second hot press component separately disposed therefrom. The first hot press component is fixed at a first position on the heating plate. The second hot press component includes a first hot press head and a second hot press head for switching between a second position on the heating plate. The end face of the first hot press component has several upper semi-cylindrical grooves I, the end face of the first hot press head has several upper semi-cylindrical grooves II, and the end face of the second hot press head has a hot press plane. The sealing seat includes a first sealing unit and a second sealing unit connected to each other. The system includes a sealing unit and a second rotation center for sequentially rotating the first and second sealing units to a position below the heating plate between a first and a second position. The first sealing unit has a first sealing plate and a second sealing plate, while the second sealing unit has a third sealing plate and a fourth sealing plate. The first and fourth sealing plates, as well as the second and third sealing plates, are symmetrically arranged around the second rotation center. The first sealing plate has a sealing plane on its end face, and the second, third, and fourth sealing plates have several lower semi-cylindrical grooves on their end faces. This solution uses a rotating sealing seat to rotate the first sealing unit below the heating plate to cooperate with the second hot press head and the first hot press component to seal the waterproof bag of a single-sided thermostat. It also rotates the second sealing unit below the heating plate to cooperate with the first hot press head and the first hot press component to seal the waterproof bag of a double-sided thermostat. This simplifies the switching operation, improves the compatibility of the heat sealing machine, and ensures optimal production capacity.

[0010] A third guide plate is provided between the second sealing plate and the third sealing plate, and a fourth guide plate is provided on the side of the fourth sealing plate away from the third sealing plate. The third guide plate and the fourth guide plate are provided with a second lead wire guide groove corresponding to the third semi-cylindrical groove.

[0011] A rotating seat is fixed at the lower end of the third guide plate. The rotating seat is rotatably connected to the base via a second slewing bearing. The center of the second slewing bearing is the second rotation center. The first sealing unit and the second sealing unit are fixed on the rotating seats on both sides of the third guide plate.

[0012] The rotating seat is provided with an elastic positioning element, and the base is provided with two positioning grooves symmetrical about the second rotation center. The free end of the elastic positioning element cooperates with the positioning groove.

[0013] The elastic positioning element is a spring plunger. The rotating seat is provided with an internal threaded hole. The outer side of the main body of the spring plunger has an external threaded portion that mates with the internal threaded hole. The inner ball of the spring plunger forms the free end.

[0014] The heating plate has a mounting groove at the second position, and the first and second hot press heads have insertion parts that cooperate with the mounting groove. The heating plate is provided with a locking member for fixing the insertion parts inserted into the mounting groove.

[0015] In summary, the present invention has the following main advantages: This invention, based on the processing requirements of single-sided or double-sided wiring of thermostats, selectively installs a first or second hot press head at the second position of the heating plate. Simultaneously, by rotating the second sealing component, the first sealing seat cooperates with the first hot press head to seal the waterproof bag of the thermostat with double-sided wiring, or the second sealing seat cooperates with the second hot press head to seal the waterproof bag of the thermostat with single-sided wiring. Thus, the hot press sealing machine equipped with this sealing fixture is compatible with sealing operations of waterproof bags of thermostats with both single-sided and double-sided wiring. When using two sealing machines, the above switching operation can be used to simultaneously produce one model of thermostat, or to produce two models of thermostats separately, ensuring optimal production capacity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of Example 1 installed on the hot press sealing machine; Figure 2 This is a schematic diagram of the structure of the heating plate of this utility model, in which a first hot pressing component and a second hot pressing head are installed. Figure 3 This is a schematic diagram of the structure of the heating plate of this utility model, in which a first hot pressing component and a first hot pressing head are installed; Figure 4 This is a schematic diagram of the structure of the second hot press head in this utility model; Figure 5 This is a schematic diagram of the sealing seat composed of the first sealing component and the second sealing component in Embodiment 1; Figure 6 yes Figure 5 A cross-sectional view along the length of the line connecting the centers of the first guide plate and the second guide plate; Figure 7 This is a schematic diagram of the structure of Embodiment 2 installed on the hot press sealing machine; Figure 8 This is a schematic diagram of the sealing seat composed of the first sealing unit and the second sealing unit in Embodiment 1; Figure 9 yes Figure 8 A cross-sectional view along the length of the line connecting the centers of the third and fourth guide plates.

[0017] Reference numerals: 100, base; 200, heating plate; 300, drive cylinder; 400, push plate; 1, first hot pressing component; 101, upper semi-cylindrical groove one; 2, first hot pressing head; 201, upper semi-cylindrical groove two; 3, second hot pressing head; 301, hot pressing plane; 4, first sealing component; 401, lower semi-cylindrical groove one; 402, first guide plate; 5, second sealing component; 501, first sealing seat; 502, second sealing seat; 503, lower semi-cylindrical groove two; 504, sealing plane one; 505, second guide plate; 506, first rotating seat; 6, first sealing unit; 601 602. First sealing plate; 603. Second sealing plate; 604. Sealing plane two; 605. Lower semi-cylindrical groove three; 606. Third guide plate; 7. Second sealing unit; 701. Third sealing plate; 702. Fourth sealing plate; 703. Fourth guide plate; 8. Connecting seat; 801. Insertion part; 9. Mounting groove; 10. Locking bolt; 11. Lead wire guide groove one; 12. Lead wire guide groove two; 13. Positioning seat; 14. Spring plunger; 1401. Inner ball; 1402. Compression spring; 15. First slewing bearing; 16. Positioning groove; 17. Second rotating seat; 18. Second slewing bearing. Detailed Implementation

[0018] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] In the following description, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] Furthermore, in this utility model, directional terms such as "upper," "lower," "left," and "right" may be defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms can be relative concepts, used for relative description and clarification, and can change accordingly based on the orientation of the components in the accompanying drawings.

[0021] This utility model provides a waterproof bag sealing fixture for a defrosting thermostat, including a hot press head located on a heating plate 200 and a sealing seat located on a base 100. Similar to the prior art, a drive cylinder 300 is installed on the base 100, and a push plate 400 is fixed on the output end of the drive cylinder 300. The heating plate 200 is connected to the push plate 400. Under the drive of the drive cylinder 300, the heating plate 200 drives the hot press head to move closer to / away from the sealing seat vertically. The heating plate 200 has a built-in heating tube for heating and a thermocouple for controlling the heating temperature.

[0022] In Example 1, as Figures 1 to 3 As shown, the aforementioned hot pressing head includes a first hot pressing component 1 and a second hot pressing component that are separately disposed. The first hot pressing component 1 is fixed at a first position on the heating plate 200. The second hot pressing component includes a first hot pressing head 2 and a second hot pressing head 3 for switching between positions on the heating plate 200. The end face of the first hot pressing component 1 has several upper semi-cylindrical grooves 101, the end face of the first hot pressing head 2 has several upper semi-cylindrical grooves 201, and the end face of the second hot pressing head 3 has a hot pressing plane 301. The aforementioned first hot pressing component 1, first hot pressing head 2, and second hot pressing head 3 all... A T-shaped copper plate with a certain width is used. Each semi-cylindrical groove 101 is spaced apart along the width direction on the vertical end face of the first hot press 1. Each semi-cylindrical groove 201 is spaced apart along the width direction on the vertical end face of the first hot press head 2. The hot press plane 301 is the lower end face of the second hot press head 3. Preferably, the first hot press head 2 and the second hot press head 3 are detachably mounted on the heating plate 200. To facilitate quick switching and assembly of the first hot press head 2 and the second hot press head 3, specifically, a mounting groove 9 is provided at the second position of the heating plate 200, such as... Figure 4 As shown, the first hot press head 2 and the second hot press head 3 have insertion portions 801 that mate with the mounting groove 9. These insertion portions 801 are the vertical sections of the inverted T-shaped connecting seats 8 fixed to the top of the first hot press head 2 / second hot press head 3. The heating plate 200 is provided with locking components for fixing the insertion portions 801 inserted into the mounting groove 9. Specifically, in this design, the locking component is a locking bolt 10. The heating plate 200 has at least two threaded holes communicating with the mounting groove 9 on the side facing the operating position. The locking bolt 10 mates with the threaded holes until the locking bolt 10... The end face abuts against the insertion part 801, so that the insertion part 801 is tightly pressed into the mounting groove 9. Preferably, the first hot pressing component 1 is fixed at the first position of the heating plate 200 in the same way as the first hot pressing head 2 / second hot pressing head 3. When switching between the first hot pressing head 2 and the second hot pressing head 3, the first hot pressing component 1 is not disassembled. The side of the first hot pressing component 1 serves as a limiting surface for the installation of the first hot pressing head 2 / second hot pressing head 3, so as to ensure the rapid positioning of the first hot pressing head 2 / second hot pressing head 3 at the second position of the heating plate 200.

[0023] like Figure 5 As shown, the sealing base includes a first sealing component 4 and a second sealing component 5, which are separately disposed. The end face of the first sealing component 4 has a lower semi-cylindrical groove 401 corresponding to the upper semi-cylindrical groove 101. The first sealing component 4 is made of an L-shaped copper plate with a certain width and is fixed on the base 100. The lower semi-cylindrical grooves 401 are spaced apart along the width direction on the vertical end face of the first sealing component 4. With the drive cylinder 300, the vertical end face of the first sealing component 4 is engaged with the vertical end face of the first hot pressing component 1 to control the temperature controller with a single-sided output. The lead end of the waterproof bag or one lead end of the thermostat waterproof bag with double-sided wiring is heat-sealed; the second sealing component 5 has a first rotation center and a first sealing seat 501 and a second sealing seat 502 that rotate sequentially around the first rotation center to the second position below the heating plate 200. The end face of the first sealing seat 501 has several lower semi-cylindrical grooves 503, and the end face of the second sealing seat 502 has a sealing plane 504. Similarly, the first sealing seat 501 and the second sealing seat 502 are made of copper plates with a certain width. Semi-cylindrical grooves 503 are spaced apart along the width direction on the vertical end face of the first sealing seat 501, and sealing plane 504 is the upper end face of the second sealing seat 502. When the first hot press head 2 is installed in the second position of the heating plate 200, the second sealing component 5 is rotated so that the first sealing seat 501 corresponds to it. At this time, the fixture seals the waterproof bag of the thermostat with wires coming out on both sides. The other lead end of the waterproof bag of the thermostat with wires coming out on both sides is located between the first hot press head 2 and the first sealing seat 501. When the second hot press head 3 is installed in the second position of the heating plate 200... Rotate the second sealing component 5 so that the second sealing seat 502 corresponds to it. The two planes are connected for heat-sealing the non-outlet end of the single-sided wired thermostat waterproof bag. By switching the first hot press head 2 and the second hot press head 3 and rotating the second sealing component 5 accordingly, the hot press sealing machine with this sealing fixture can be compatible with sealing operations of single-sided and double-sided wired thermostat waterproof bags. When using two sealing machines, the above switching operation can be used to produce one type of thermostat at the same time, or to produce two types of thermostats separately, to ensure the optimization of production capacity.

[0024] Further preferred, such as Figure 5As shown, a first guide plate 402 is provided on the side of the first sealing member 4 away from the second sealing member 5. A second guide plate 505 is provided between the first sealing seat 501 and the second sealing seat 502. The first guide plate 402 and the second guide plate 505 are provided with lead wire guide grooves 11 corresponding to the lower semi-cylindrical groove 1 401 and the lower semi-cylindrical groove 2 503. Preferably, the first guide plate 402 and the second guide plate 505 are made of high-temperature resistant hard plastic material such as polytetrafluoroethylene. The first guide plate 402 is fixed on the base 100, and the second guide plate 505... The guide plate 505 is mounted on the base 100 and rotates around the first rotation center along with the first sealing seat 501 and the second sealing seat 502. When sealing the waterproof bag of the thermostat with wires on both sides, the lead wire guide grooves on the first guide plate 402 and the second guide plate 505 can separate and position the lead wires on both sides. When sealing the waterproof bag of the thermostat with wires on one side, the lead wire guide groove on the first guide plate 402 separates and positions the lead wire at the wire end, while the second guide plate 505 limits the waterproof bag at the non-wire end, thereby ensuring the accuracy of the sealing.

[0025] like Figure 6 As shown, a rotating seat is fixed to the lower end of the second guide plate 505. To facilitate differentiation of the rotating seats in different embodiments, the rotating seat in this embodiment is referred to as the first rotating seat 506. The first rotating seat 506 is rotatably connected to the base 100 via a first slewing bearing 15. The center of the first slewing bearing 15 is the first rotation center. The first sealing seat 501 and the second sealing seat 502 are fixed on the first rotating seats 506 on both sides of the second guide plate 505. More preferably, the center of the first slewing bearing 15 and the center of the second guide plate 505 are... With the central axes coinciding, the first sealing seat 501 and the second sealing seat 502 are symmetrically arranged. Specifically, in this scheme, the first rotating seat 506 and the second guide plate 505 are integrally formed. The inner ring of the first slewing bearing 15 is fixedly connected to the first rotating seat 506. The base 100 is provided with a stepped groove for inserting the outer ring of the first slewing bearing 15, and the outer ring of the first slewing bearing 15 is fixed on the radial limiting surface of the stepped groove. There is a rotational gap between the first rotating seat 506 and the base 100, thereby realizing the rotational connection between the second sealing member 5 and the base 100.

[0026] In order to achieve accurate positioning when the first sealing member 4 rotates, the first rotating seat 506 is provided with an elastic positioning member, and the base 100 is provided with two positioning grooves 16 with the first rotation center as the center of symmetry. The free end of the elastic positioning member cooperates with the positioning groove 16.

[0027] More preferably, the elastic positioning element is a spring plunger 14. The first rotating seat 506 is provided with an internal threaded hole. The outer side of the main body of the spring plunger 14 has an external threaded portion that mates with the internal threaded hole. The inner ball 1401 of the spring plunger 14 forms the free end. Preferably, the positioning groove 16 is a conical groove. When the second sealing member 5 is pressed and rotated, the inner ball 1401 is squeezed inward by the positioning groove 16 and retracts after disengaging. After disengaging, it rotates freely 180° to reach another positioning groove 16. The compression spring 1402 releases its elastic force to make the inner ball 1401 mate with the positioning groove 16, thus completing the positioning after rotation. The operation is simple and the positioning effect is obvious. Preferably, there are two spring plungers 14, which are symmetrically installed on the first rotating seats 506 on both sides of the second guide plate 505 to improve the stability during rotation positioning. Of course, in other embodiments, the above-mentioned spring positioning element can also be a spring pin.

[0028] In Example 2, as Figure 7 As shown, its difference from Embodiment 1 lies in that the sealing seat includes a first sealing unit 6 and a second sealing unit 7 connected to each other, and a second rotation center for sequentially rotating the first sealing unit 6 and the second sealing unit 7 to a position below the area between the first and second positions of the heating plate 200, wherein, as... Figure 8As shown, the first sealing unit 6 has a first sealing plate 601 and a second sealing plate 602, and the second sealing unit 7 has a third sealing plate 701 and a fourth sealing plate 702. The first sealing plate 601 and the fourth sealing plate 702, the second sealing plate 602 and the third sealing plate 701 are respectively symmetrically arranged about the second rotation center. The end face of the first sealing plate 601 has a sealing plane 603. The second sealing plate 602, the third sealing plate 701 and the fourth sealing plate 602 are respectively symmetrically arranged about the second rotation center. The fourth sealing plate 702 has several lower semi-cylindrical grooves 604 on its end face. Preferably, the first sealing unit 6 and the second sealing unit 7 can be U-shaped copper components with a certain width. The sealing plane 603 and the lower semi-cylindrical grooves 604 are respectively set on the vertical end face of the U-shaped copper component. Similarly, in order to separate the lead wires of the thermostat and ensure the accuracy of the sealing, a third guide is provided between the second sealing plate 602 and the third sealing plate 701. Plate 605, the fourth sealing plate 702 has a fourth guide plate 703 on the side away from the third sealing plate 701. The third guide plate 605 and the fourth guide plate 703 have lead wire guide grooves 12 corresponding to the lower semi-cylindrical groove 604. The second guide plate 505 is mounted on the base 100 and rotates around the first rotation center with the first sealing seat 501 and the second sealing seat 502. The third guide plate 605 and the fourth guide plate 703 are mounted on the base 100 with the first sealing unit 6 and the second sealing unit 702. Unit 7 is mounted on base 100 and rotates around the second rotation center. By rotating the sealing seat, the first sealing unit 6 rotates to the area below the heating plate 200 and cooperates with the second hot press head 3 and the first hot press component 1 to seal the waterproof bag of the thermostat with single-sided wiring. The second sealing unit 7 rotates to the area below the heating plate 200 and cooperates with the first hot press head 2 and the first hot press component 1 to seal the waterproof bag of the thermostat with double-sided wiring. The switching operation is simple, improves the compatibility of the hot press sealing machine, and ensures the optimization of production capacity.

[0029] In a further preferred embodiment, in Example 2, the rotating seat fixed at the lower end of the third guide plate 605 is designated as the second rotating seat 17. This second rotating seat 17 is rotatably connected to the base 100 via a second slewing bearing 18. The center of the second slewing bearing 18 is the second rotation center. The first sealing unit 6 and the second sealing unit 7 are fixed on the second rotating seats 17 on both sides of the third guide plate 605. Similarly, the center of the second slewing bearing 18 coincides with the central axis of the third guide plate 605, and the first sealing unit 6 and the second sealing unit 7 are symmetrically arranged. The installation method of the second slewing bearing 18 is the same as that of the first slewing bearing 15 in Example 1, such as... Figure 7As shown, the second slewing bearing 18 (second rotation center) is located on the base 100 near the first hot pressing component 1, so that the first sealing plate 601 on the rotated first sealing unit 6 can cooperate with the second hot pressing head 3 assembled on the second position of the heating plate 200.

[0030] Similar to Example 1, as Figure 9 As shown, the second rotating seat 17 is provided with an elastic positioning element, and the base 100 is provided with two positioning grooves 16 symmetrical about the second rotation center. The free end of the elastic positioning element cooperates with the positioning groove 16. Specifically, the elastic positioning element is a spring plunger 14. The second rotating seat 17 is provided with an internal threaded hole, and the outer side of the main body of the spring plunger 14 has an external threaded part that cooperates with the internal threaded hole. The inner ball 1401 of the spring plunger 14 forms the free end.

[0031] Further preferably, to facilitate the positioning of the waterproof bag, in Example 1, as... Figure 5 As shown, a positioning seat 13 is fixed on the horizontal section of the first sealing member 4. The positioning seat 13 has an opening groove that is aligned with the lower semi-cylindrical groove 401. Similarly, in embodiment 2, as... Figure 8 As described above, a positioning seat 13 is fixed in the first sealing unit 6 between the first sealing plate 601 and the second sealing plate 602, and in the second sealing unit 7 between the third sealing plate 701 and the fourth sealing plate 702. The positioning seat 13 has an opening groove that is arranged in the same direction as the lower semi-cylindrical groove 604.

[0032] When using this tooling to seal waterproof bags of defrost temperature controllers in the workshop, taking Example 1 as an example, two heat-sealing machines are set up at the workstation. When an order requires a defrost temperature controller with a single-sided outlet, a second heat-sealing head 3 is installed at the second position of the heating plate 200, and the second sealing component is rotated so that the second sealing seat 502 is located below the second heat-sealing head 3. The drive cylinder 300 drives the heating plate 200 to move downward. The first heat-sealing component 1 and the first sealing component 4 cooperate to seal the lead end of the waterproof bag, and the second heat-sealing head 3 and the second sealing seat 502 cooperate to seal the non-lead end of the waterproof bag. When an order requires a defrost temperature controller with a double-sided outlet, the tooling on the two heat-sealing machines is switched, that is, on the heating plate 200... After removing the second hot press head 3 at the second position, install the first hot press head 2. Rotate the second sealing component so that the first sealing seat 501 is located below the first hot press head 2. The first hot press component 1 cooperates with the first sealing component 4, and the first hot press head 2 cooperates with the first sealing seat 501 to seal the lead ends on both sides of the waterproof bag. When an order requires both single-sided and double-sided wired defrost temperature controllers, only one of the hot press sealing machines needs to be switched. The switched hot press sealing machine seals the waterproof bags of the double-sided wired defrost temperature controllers, while the unswitched hot press sealing machine seals the waterproof bags of the single-sided wired defrost temperature controllers. The switching operation is simple, improves the compatibility of the hot press sealing machine with temperature controller models, and ensures the optimization of production capacity.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waterproof bag sealing fixture for a defrosting thermostat, comprising a hot press head located on a heating plate and a sealing seat located on a base, characterized in that, The hot pressing head includes a first hot pressing component and a second hot pressing component that are separately disposed. The first hot pressing component is fixed at a first position on the heating plate. The second hot pressing component includes a first hot pressing head and a second hot pressing head that are switched at a second position on the heating plate. The end face of the first hot pressing component has a plurality of upper semi-cylindrical grooves I, the end face of the first hot pressing head has a plurality of upper semi-cylindrical grooves II, and the end face of the second hot pressing head has a hot pressing plane. The sealing seat includes a first sealing component and a second sealing component that are separately disposed. The end face of the first sealing component has a lower semi-cylindrical groove I corresponding to the upper semi-cylindrical grooves I. The second sealing component has a first rotation center and a first sealing seat and a second sealing seat that rotate sequentially around the first rotation center to a position below the second position on the heating plate. The end face of the first sealing seat has a plurality of lower semi-cylindrical grooves II, and the end face of the second sealing seat has a sealing plane I.

2. The waterproof bag sealing fixture for a defrosting thermostat according to claim 1, characterized in that, A first guide plate is provided on the side of the first sealing member away from the second sealing member, and a second guide plate is provided between the first sealing seat and the second sealing seat. A lead wire guide groove is provided on the first guide plate and the second guide plate, corresponding to the lower semi-cylindrical groove one and the lower semi-cylindrical groove two.

3. The waterproof bag sealing fixture for a defrosting thermostat according to claim 2, characterized in that, A rotating seat is fixed at the lower end of the second guide plate. The rotating seat is rotatably connected to the base via a first slewing bearing. The center of the first slewing bearing is the first rotation center. The first sealing seat and the second sealing seat are fixed on the rotating seats on both sides of the second guide plate.

4. The waterproof bag sealing fixture for a defrosting thermostat according to claim 3, characterized in that, The rotating seat is provided with an elastic positioning element, and the base is provided with two positioning grooves symmetrical about the first rotation center. The free end of the elastic positioning element cooperates with the positioning groove.

5. A waterproof bag sealing fixture for a defrosting thermostat, comprising a hot press head located on a heating plate and a sealing seat located on a base, characterized in that, The hot press head includes a first hot press component and a second hot press component that are separately disposed. The first hot press component is fixed at a first position on the heating plate. The second hot press component includes a first hot press head and a second hot press head for switching between positions on a second position on the heating plate. The end face of the first hot press component has several upper semi-cylindrical grooves I. The end face of the first hot press head has several upper semi-cylindrical grooves II. The end face of the second hot press head has a hot press plane. The sealing seat includes a first sealing unit and a second sealing unit connected to each other, and a second rotation center for rotating the first sealing unit and the second sealing unit sequentially to a position below the area between the first and second positions on the heating plate. The first sealing unit has a first sealing plate and a second sealing plate. The second sealing unit has a third sealing plate and a fourth sealing plate. The first sealing plate and the fourth sealing plate, the second sealing plate and the third sealing plate are respectively symmetrically arranged with respect to the second rotation center. The end face of the first sealing plate has a sealing plane II. The end faces of the second sealing plate, the third sealing plate and the fourth sealing plate have several lower semi-cylindrical grooves III.

6. The waterproof bag sealing fixture for a defrosting thermostat according to claim 5, characterized in that, A third guide plate is provided between the second sealing plate and the third sealing plate, and a fourth guide plate is provided on the side of the fourth sealing plate away from the third sealing plate. The third guide plate and the fourth guide plate are provided with a second lead wire guide groove corresponding to the third semi-cylindrical groove.

7. The waterproof bag sealing fixture for a defrosting thermostat according to claim 6, characterized in that, A rotating seat is fixed at the lower end of the third guide plate. The rotating seat is rotatably connected to the base via a second slewing bearing. The center of the second slewing bearing is the second rotation center. The first sealing unit and the second sealing unit are fixed on the rotating seats on both sides of the third guide plate.

8. The waterproof bag sealing fixture for a defrosting thermostat according to claim 7, characterized in that, The rotating seat is provided with an elastic positioning element, and the base is provided with two positioning grooves symmetrical about the second rotation center. The free end of the elastic positioning element cooperates with the positioning groove.

9. A waterproof bag sealing fixture for a defrosting thermostat according to claim 4 or 8, characterized in that, The elastic positioning element is a spring plunger. The rotating seat is provided with an internal threaded hole. The outer side of the main body of the spring plunger has an external threaded portion that mates with the internal threaded hole. The inner ball of the spring plunger forms the free end.

10. A waterproof bag sealing fixture for a defrosting thermostat according to any one of claims 1-8, characterized in that, The heating plate has a mounting groove at the second position, and the first and second hot press heads have plug-in parts that cooperate with the mounting groove. The heating plate is provided with a locking member for fixing the plug-in parts inserted into the mounting groove.

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