Hot melting auxiliary tool

Abstract

The utility model provides a hot melting auxiliary tool which is used for being matched with a hot melting main machine so as to hot melt an electrode film on an upper cover of an electrochemical sensor. According to the hot melting auxiliary tool, a hot melting head is divided into an external connecting part and a heating part in the axial direction; the external connecting part is in threaded connection with the hot melting host; the heating part is of a cylindrical structure with an opening in the first end, and the first end is a contact heating end. The objective table is used for bearing the electrochemical sensor upper cover; the positioning housing is configured to apply pressure to the edge of the upper cover of the electrochemical sensor by covering the objective table, a first open area is arranged on a top plate of the positioning housing, and the vertical projection of part of the side wall of the area in the plane where the upper surface of the top plate is located is semicircular. The radius of the semicircle is equal to the outer diameter of the contact heating end, and when the end wall of the contact heating end abuts against part of the side wall, the contact heating end and the electrochemical sensor upper cover are coaxial. According to the utility model, the problems of operation safety risk and poor hot melting effect in the existing mode of hot melting the electrode film on the upper cover of the electrochemical sensor can be solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of electrochemical sensor assembly, more particularly, relate to a kind of hot melt auxiliary tool. BACKGROUND

[0002] In related art, a kind of electrochemical sensor adopts split type shell, the split type shell usually includes the cylindrical structure of one end opening and the circle of upper cover on its open end is set.In the assembly process of this electrochemical sensor using split type shell, electrode film is installed on sensor upper cover is an important process.Specifically, when electrochemical sensor is two-electrode sensor, the electrode film is used as blank electrode film, mainly to ensure the electrical contact between the internal components of sensor and the sealing property of sensor.When electrochemical sensor is three-electrode sensor, the electrode film is used as working electrode, while ensuring the sealing property of sensor.

[0003] The existing electrode film is usually installed on sensor upper cover by hot melting, and the corresponding operation process is usually as follows: the operator places sensor upper cover on the table top, places electrode film cut to size coaxially on sensor upper cover, and uses hot melting machine to heat the edge of electrode film, so that it is melted and solidified on sensor upper cover.However, the above-mentioned electrode film hot melting method mainly has the following two problems:

[0004] 1. In order to prevent the displacement of sensor upper cover from affecting the hot melting effect of electrode film, the operator needs to fix sensor upper cover with hand, which has the risk of being scalded in the process of hot melting, and is very unsafe.

[0005] 2. When hot melting electrode film, the hot melting head of hot melting machine and electrode film are easy to deviate due to the lack of positioning measures, that is, before formal hot melting, hot melting head is not aligned with electrode film, and electrode film and hot melting head are not in coaxial state and have large deviation, if hot melting is carried out in this case, electrode film is unevenly stressed and heated, the hot melting effect is poor, and the risk of sensor leakage is increased. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the problems of operation safety risk and poor hot melting effect due to lack of positioning measures in the existing method of hot melting electrode film on electrochemical sensor upper cover.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a kind of hot melting auxiliary tool, for cooperating with hot melting host computer, to hot melt electrode film on electrochemical sensor upper cover;

[0008] The hot melting auxiliary tool includes hot melting head, positioning cover shell and object table.

[0009] The hot melt head is divided into an outer connecting part and a heating part along its axial direction;

[0010] The outer connecting part is a nut-like structure with an internally threaded hole, and the outer connecting part is threadedly connected with the hot melt head receiving part of the hot melt main machine through the internally threaded hole;

[0011] The heating part is a cylindrical structure with an open first end, and the first end of the heating part is a contact heating end;

[0012] The object table is used for carrying the upper cover of the electrochemical sensor;

[0013] The positioning cover shell is configured to be capable of exerting pressure on the edge of the upper cover of the electrochemical sensor by being arranged on the object table, a first open area is arranged on the top plate of the positioning cover shell, a part of the side wall of the first open area is a semicircle in the vertical projection on the plane of the upper surface of the top plate, the radius of the semicircle is equal to the outer diameter of the contact heating end, and when the end wall of the contact heating end abuts against the part of the side wall, the contact heating end is coaxial with the upper cover of the electrochemical sensor.

[0014] Optionally, the outer connecting part is an outer hexagonal nut-like structure;

[0015] The internally threaded hole is an internally threaded through hole or an internally threaded blind hole.

[0016] Optionally, a closed end plate is arranged on the second end of the heating part, or the second end of the heating part is open.

[0017] Optionally, the contact heating end is a one-stage annular stepped structure.

[0018] Optionally, the object table is divided into a base table and an object carrying part located above the base table, and the object carrying part is used for carrying the upper cover of the electrochemical sensor.

[0019] Optionally, the base table and the object carrying part are both cylindrical structures;

[0020] The height of the base table is greater than the height of the object carrying part, and the diameter of the base table is greater than the diameter of the object carrying part.

[0021] Optionally, the positioning cover shell is a rectangular structure, and an arc-shaped clamping groove with open two ends is formed from the first side wall of the positioning cover shell to the inside of the positioning cover shell;

[0022] The slot of the arc-shaped clamping groove is rectangular;

[0023] The first open end of the arc-shaped clamping groove corresponds to the first open area, and the first open end is U-shaped;

[0024] The second open end of the arc-shaped clamping groove is located on the bottom plate of the positioning cover shell, and the second open end is a U-shaped structure gradually converging from the open part to the closed part.

[0025] The utility model discloses the beneficial effect lies in:

[0026] The utility model discloses a hot melting auxiliary tool, positioning cover shell is configured as the way of being covered in the object table to the edge of electrochemical sensor upper cover with pressure, be provided with first open area on the top plate of positioning cover shell, and the vertical projection of the partial side wall of first open area in the plane of the upper surface of the top plate of positioning cover shell is semicircle, and the radius of the semicircle is equal to the outer diameter of the contact heating end of hot melting head, when the end wall of contact heating end and the corresponding partial side wall of first open area abut, contact heating end and electrochemical sensor upper cover are coaxial.

[0027] The utility model discloses a hot melting auxiliary tool, on the one hand, when positioning cover shell is covered in the object table, positioning cover shell can add pressure to the edge of electrochemical sensor upper cover simultaneously, thereby fixing electrochemical sensor upper cover on the object table, on the other hand, after electrochemical sensor upper cover is fixed by positioning cover shell, the electrode film that is cut beforehand is placed coaxially on electrochemical sensor upper cover, then moves hot melting host, and the end wall of the contact heating end of hot melting head is first abutted with the corresponding partial side wall of first open area, when contact heating end and electrode film are in coaxial alignment state, under the state, press down hot melting head to realize the hot melting of electrode film.

[0028] According to the above, the hot melting auxiliary tool of the utility model can realize the fixation of electrochemical sensor upper cover in the electrode film hot melting process and the hot melting of electrode film by hot melting head in the coaxial alignment state, thereby effectively solving the problems of operation safety risk and poor hot melting effect caused by lacking positioning measures in the prior art of hot melting electrode film on electrochemical sensor upper cover. Other features and advantages of the utility model will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0029] The utility model can be better understood by referring to the description made below in conjunction with the accompanying drawings, wherein the same or similar reference signs are used to represent the same or similar parts in all the drawings.

[0030] Figure 1 The structure schematic diagram of the hot melting head under the first visual angle according to the embodiment of the utility model is shown;

[0031] Figure 2 The structure schematic diagram of the hot melting head under the second visual angle according to the embodiment of the utility model is shown;

[0032] Figure 3 Fig. 3 shows a structural schematic diagram of the positioning cover shell under a third perspective according to an embodiment of the present application;

[0033] Figure 4 Fig. 4 shows a structural schematic diagram of the positioning cover shell under a fourth perspective according to an embodiment of the present application;

[0034] Figure 5 Fig. 5 shows a structural schematic diagram of the object table according to an embodiment of the present application;

[0035] Figure 6 Fig. 6 shows a matching schematic diagram of the positioning cover shell and the object table according to an embodiment of the present application. DETAILED DESCRIPTION

[0036] In order to enable a person skilled in the art to more fully understand the technical solutions of the present application, in the following, exemplary embodiments of the present application will be described more fully and in detail with reference to the accompanying drawings. Obviously, one or more of the embodiments of the present application described below are only one or more of the specific manners of implementing the technical solutions of the present application, and are not exhaustive. It should be understood that the technical solutions of the present application can be implemented in other manners belonging to the general inventive concept without creative labor, and should not be limited by the exemplary described embodiments. Based on one or more embodiments of the present application, all other embodiments obtained by a person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0037] Embodiment: Figure 1 Fig. 1 shows a structural schematic diagram of the hot melting head under a first perspective according to an embodiment of the present application, Figure 2 Fig. 2 shows a structural schematic diagram of the hot melting head under a second perspective according to an embodiment of the present application, Figure 3 Fig. 3 shows a structural schematic diagram of the positioning cover shell under a third perspective according to an embodiment of the present application, Figure 4 Fig. 4 shows a structural schematic diagram of the positioning cover shell under a fourth perspective according to an embodiment of the present application, Figure 5 Fig. 5 shows a structural schematic diagram of the object table according to an embodiment of the present application, Figure 6 Fig. 6 shows a matching schematic diagram of the positioning cover shell and the object table according to an embodiment of the present application.

[0038] With reference to Figures 1-6 , the hot melting auxiliary tool of the present application embodiment comprises a hot melting head 100, a positioning cover shell 200 and an object table 300;

[0039] The hot melting head 100 is divided into an external connection part 110 and a heating part 120 along its axial direction;

[0040] The outer connecting part 110 is a nut-shaped structure with an internally threaded hole, and the outer connecting part 110 is threadedly connected with a hot melt head receiving part of a hot melt host through the internally threaded hole;

[0041] The heating part 120 is a cylindrical structure with an open first end, and the first end of the heating part 120 is a contact heating end;

[0042] The object table 300 is used for carrying the upper cover of the electrochemical sensor.

[0043] The positioning cover shell 200 is configured to be capable of exerting pressure on the edge of the upper cover of the electrochemical sensor by being arranged on the object table 300, and a first open area 210 is arranged on the top plate of the positioning cover shell 200, a vertical projection of a part of the side wall of the first open area 210 in the plane of the upper surface of the top plate of the positioning cover shell is a semicircle, the radius of the semicircle is equal to the outer diameter of the contact heating end, and when the end wall of the contact heating end abuts against the part of the side wall of the first open area 210, the contact heating end is coaxial with the upper cover of the electrochemical sensor.

[0044] Further, in the embodiment of the utility model, the outer connecting part 110 is an outer hexagonal nut-shaped structure.

[0045] The internally threaded hole of the outer connecting part 110 is an internally threaded through hole or an internally threaded blind hole.

[0046] Further, in the embodiment of the utility model, a closed end plate is arranged on the second end of the heating part 120, and the closed end plate is fixedly connected with the first end of the outer connecting part 110, or the second end of the heating part 120 is open, and the second end of the heating part 120 is fixedly connected with the first end of the outer connecting part 110.

[0047] Further, in the embodiment of the utility model, the contact heating end is a one-stage annular stepped structure 121.

[0048] Further, in the embodiment of the utility model, the object table 300 is divided into a base table 310 and an object carrying part 320 located above the base table 310, and the object carrying part 320 is used for carrying the upper cover of the electrochemical sensor.

[0049] Further, in the embodiment of the utility model, the base table 310 and the object carrying part 320 are both cylindrical structures.

[0050] The height of the base table 310 is greater than the height of the object carrying part 320, and the diameter of the base table 310 is greater than the diameter of the object carrying part 320.

[0051] Further, the positioning cover shell 200 is a rectangular structure, and an arc-shaped clamping groove 220 with open two ends is formed from the first side wall of the positioning cover shell 200 to the interior of the positioning cover shell 200.

[0052] The slot of the arc-shaped clamping groove 220 is rectangular.

[0053] The first open end of the arc-shaped clamping groove 220 corresponds to the first open area 210, and the first open end of the arc-shaped clamping groove 220 is U-shaped.

[0054] The second open end of the arc-shaped clamping groove 220 is located on the bottom plate of the positioning cover shell 200, and the second open end of the arc-shaped clamping groove 220 is a U-shaped structure gradually converging from the open part to the closed part.

[0055] Specifically, when the electrode film needs to be hot-melted on the electrochemical sensor upper cover, the electrochemical sensor upper cover is first placed on the carrier part 320, and then the carrier table 300 and the electrochemical sensor upper cover are integrally pushed into the slot of the arc-shaped clamping groove 220 until it cannot be pushed in any more, at which time the positioning cover shell 200 is in contact with the carrier table 300 and exerts pressure on the electrochemical sensor upper cover through the top plate located at the peripheral part of the first open area 210 to fix the electrochemical sensor upper cover on the carrier table 300. Before formal hot-melting, the pre-cut electrode film is coaxially placed on the electrochemical sensor upper cover, and then the hot-melting host is moved to abut the end wall of the contact heating end of the hot-melting head 100 with the corresponding part of the side wall of the first open area 210, at which time the contact heating end is coaxially aligned with the electrode film, and the hot-melting head is pressed in this state to achieve hot-melting of the electrode film.

[0056] Although one or more embodiments of the present application have been described above, it should be understood by those skilled in the art that the present application can be implemented in any other form without departing from the spirit and scope of the present application. Therefore, the above-described embodiments are illustrative rather than limiting, and many modifications and substitutions are obvious to those skilled in the art without departing from the spirit and scope of the present application as defined by the appended claims.

Claims

1. A hot melt assist tool, characterized by, The application relates to a hot-melt auxiliary tool for cooperating with a hot-melt host to hot-melt an electrode film on an electrochemical sensor upper cover. The hot-melt auxiliary tool comprises a hot-melt head, a positioning cover shell and a carrier table. The hot-melt head is divided into an outer connecting part and a heating part along an axial direction. The outer connecting part is in the form of a nut structure with an internally threaded hole, and the outer connecting part is threadedly connected with a hot-melt head receiving part of the hot-melt host through the internally threaded hole. The heating part is in the form of a cylindrical structure with an open first end, and the first end of the heating part is a contact heating end. The carrier table is used for carrying the electrochemical sensor upper cover. The positioning cover shell is configured to apply pressure to the edge of the electrochemical sensor upper cover by being arranged on the carrier table, a first open area is arranged on a top plate of the positioning cover shell, a part of a side wall of the first open area is in the form of a semicircle in a vertical projection on a plane of an upper surface of the top plate, a radius of the semicircle is equal to an outer diameter of the contact heating end, and the contact heating end is coaxial with the electrochemical sensor upper cover when an end wall of the contact heating end abuts against the part of the side wall.

2. The hot melt assist tooling of claim 1, wherein, The outer connecting part is in the form of an outer hexagonal nut structure. The internally threaded hole is in the form of an internally threaded through hole or an internally threaded blind hole.

3. The hot melt assist tooling of claim 1, wherein, An end plate is arranged on a second end of the heating part, or the second end of the heating part is open.

4. The hot melt assist tooling of claim 1, wherein, The contact heating end is in the form of a one-stage annular stepped structure.

5. The hot melt assist tooling of claim 1, wherein, The carrier table is divided into a base table and a carrier part arranged above the base table, and the carrier part is used for carrying the electrochemical sensor upper cover.

6. The hot melt assist tooling of claim 5, wherein, The base table and the carrier part are both in the form of cylindrical structures. The height of the base table is greater than the height of the carrier part, and the diameter of the base table is greater than the diameter of the carrier part.

7. The hot melt assist tooling of claim 6, wherein, The positioning cover shell is in the form of a rectangular structure, and an arc-shaped clamping groove is arranged in the positioning cover shell from a first side wall to an interior of the positioning cover shell. The groove of the arc-shaped clamping groove is in the form of a rectangle. A first open end of the arc-shaped clamping groove corresponds to the first open area, and the first open end is in the form of a U shape. A second open end of the arc-shaped clamping groove is arranged on a bottom plate of the positioning cover shell, and the second open end is in the form of a U shape gradually converging from an open part to a closed part.

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