A pre-insulated terminal string and method of connecting the same

Abstract

The application provides a pre-insulated terminal string, comprising a plurality of terminal string units connected in sequence, wherein each terminal string unit comprises a material belt, a terminal sheath and a terminal metal body, one end of the terminal sheath is connected with the terminal body, and the other end of the terminal sheath is connected with the material belt; the rear end of the material belt of the front terminal string unit is provided with an embedding groove, the front end of the material belt of the rear terminal string unit is provided with an embedding block, and the embedding block of the rear terminal string unit is injection molded in the embedding groove of the front terminal string unit, so that the rear terminal string unit is embedded and connected with the front terminal string unit. Through the above structure, the pre-insulated terminal string units are connected closely and are not easy to shake and fall off; the application provides a connecting method of the pre-insulated terminal string, the rear terminal string unit is fused with the front terminal string unit when the rear terminal string unit is formed, the process of installing the rear terminal string unit with the front terminal string unit is omitted, the production efficiency is improved, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of insulation, in particular to a pre-insulated terminal string and a connecting method thereof. BACKGROUND

[0002] With the development of science and technology, the use of electrical appliances is more and more frequent, and the functions of electrical appliances are more and more, so the cables used in electrical appliances are also more and more, the original single particle terminal is particularly slow in processing wire material, and full-automatic equipment cannot be used for production, so a pre-insulated terminal string is needed to improve production efficiency and meet the needs of full-automatic equipment production, in order to facilitate carrying and meet the needs of different numbers of pre-insulated terminals, the market urgently needs a pre-insulated terminal string; the current production method of pre-insulated terminal string is to first separately injection mold each mold into a small section, then sleeve the male and female holes at both ends, and the connection of the male and female at both ends is not tight after sleeving, which is easy to shake, and each small section needs to be connected together again to manufacture the pre-insulated terminal string, which is complicated, time-consuming and laborious, and has low production efficiency, which is not conducive to large-scale automatic production. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the present application provides a pre-insulated terminal string and a connecting method thereof, a mold is used to injection mold a front terminal unit, after the front terminal unit is taken out, the rear end of the front terminal unit is put into the mold, and the rear terminal unit is injection molded, so that the rear terminal unit string is connected with the front terminal unit string together to form a pre-insulated terminal string.

[0004] The technical scheme adopted by the present application to solve its technical problems is:

[0005] The present application provides a pre-insulated terminal string, comprising a plurality of terminal string units, a plurality of said terminal string units are connected in front and back and head to tail; the terminal string unit comprises a material belt, a terminal sheath and a terminal metal body, one end of the terminal sheath is connected with the terminal metal body, and the other end of the terminal sheath is connected with the material belt; the rear end of the material belt of the front terminal string unit is provided with an embedded groove, the front end of the material belt of the rear terminal string unit is provided with an embedded block, and the embedded block of the rear terminal string unit is injection molded in the embedded groove of the front terminal string unit, so that the rear terminal string unit is embeddedly connected with the front terminal string unit.

[0006] As an improvement of the present application, the embedded groove of the front terminal string unit has a barb at the opening, the sidewall of the embedded block of the rear terminal string unit has a hook groove, and the barb and the hook groove are connected.

[0007] As an improvement of the present application, the sidewall of the embedded groove of the front terminal string has an embedded hole, the sidewall of the embedded block of the rear terminal string unit extends an embedded strip, and the embedded strip is connected with the embedded hole.

[0008] As an improvement of the present application, the material belt is provided with positioning holes.

[0009] The present application provides a method for connecting a pre-insulated terminal string, comprising the following steps:

[0010] A front mold for forming the front terminal string unit and a rear mold for forming the rear terminal string unit are provided, and the front end of the rear mold is provided with an insertion port;

[0011] Injection of the injection material into the front mold to form the front terminal string unit, and the rear end of the material belt of the front terminal string unit has an embedding groove;

[0012] The embedding groove at the rear end of the material belt of the front terminal string unit is placed into the rear mold through the insertion port;

[0013] Injection of the injection material into the rear mold to form the rear terminal string unit;

[0014] And the injection material is also injected into the embedding groove of the front terminal string unit to form an embedding block at the front end of the material belt of the rear terminal string unit, so that the rear terminal string unit and the front terminal string unit are embeddedly connected to obtain a pre-insulated terminal string.

[0015] As an improvement of the present application, the embedding groove of the front terminal string unit has a barb at the opening; the side wall of the embedding groove of the front terminal string unit has an embedding hole; and the material belt of the front terminal string unit is provided with positioning holes.

[0016] As an improvement of the present application, the injection material is also injected into the embedding groove of the front terminal string unit to form an embedding block at the front end of the material belt of the rear terminal string unit, so that the rear terminal string unit and the front terminal string unit are embeddedly connected to obtain a pre-insulated terminal string, and the step comprises:

[0017] The injection material is injected into the barb of the embedding groove of the front terminal string unit to form a hook groove at the side wall of the embedding block of the rear terminal string unit, so that the hook groove of the rear terminal string unit is connected with the barb of the front terminal string unit.

[0018] As an improvement of the present application, the injection material is also injected into the embedding groove of the front terminal string unit to form an embedding block at the front end of the material belt of the rear terminal string unit, so that the rear terminal string unit and the front terminal string unit are embeddedly connected to obtain a pre-insulated terminal string, and the step further comprises:

[0019] The injection material is injected into the fitting hole of the fitting groove side wall of the front terminal string unit, so as to form a fitting bar on the side wall of the fitting block of the rear terminal string unit, and the fitting bar of the rear terminal string unit is connected with the fitting hole of the front terminal string unit.

[0020] As an improvement of the present application, the step of placing the fitting groove at the rear end of the tape of the front terminal string unit into the rear mold through the insertion opening comprises:

[0021] An external material taking and placing device can be connected with the positioning hole to take out the front terminal string unit from the front mold and place it into the rear mold.

[0022] The present application has the following beneficial effects: through the above structure, the front and rear terminal string units are connected in series and form a pre-insulated terminal string, the fitting groove is arranged at the rear end of the tape of the front terminal string unit, and the fitting block is arranged at the front end of the tape of the rear terminal string unit, the fitting block of the rear terminal string unit is injection molded into the fitting groove of the front terminal string unit, the rear terminal string unit is connected with the front terminal string unit in a fitting manner, the connection between the front terminal string unit and the rear terminal string unit is tight and not prone to shaking, the structure is simple, the appearance is flat, the connection is firm, and the user experience is greatly improved.

[0023] Through the above method, after the injection material is injected into the front mold to form the front terminal string unit, the front terminal string unit is taken out, the fitting groove at the rear end of the front terminal string unit is placed into the rear mold, the rear terminal string unit is formed, the injection material is injected into the rear mold to form the rear terminal string unit, and the injection material is also injected into the fitting groove of the front terminal string unit to form the fitting block at the front end of the tape of the rear terminal string unit, so that the rear terminal string unit is connected with the front terminal string unit in a fitting manner, and a pre-insulated terminal string is obtained. Through repeated steps, pre-insulated terminal strings of different lengths can be produced to meet the actual needs of consumers. Further, in the manufacturing process, the step of butt jointing and installing the front terminal string unit and the rear terminal string unit is omitted, the production cost is greatly reduced, and the production efficiency and yield are improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. The drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] The present application will be further described below in combination with the drawings and embodiments.

[0026] Figure 1 is a structural schematic view of a terminal string unit of the present application;

[0027] Figure 2 is a structural schematic diagram of a pre-insulated terminal string of the present application;

[0028] Figure 3 is an enlarged view of A of Figure 2 ;

[0029] Figure 4 is a sectional view along the first sheath;

[0030] Figure 5 is a flowchart of a first embodiment of a connecting method of a pre-insulated terminal string of the present application;

[0031] Figure 6 is a flowchart of a second embodiment of a connecting method of a pre-insulated terminal string of the present application;

[0032] Figure 7 is another structural schematic diagram of a terminal string unit of the present application; DETAILED DESCRIPTION

[0033] In order to make the technical problems solved by the present application, technical solutions and beneficial effects more clearly understood, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0034] Embodiment One:

[0035] Figures 1 to 4 and Figure 7 is a structural schematic diagram of a first embodiment of a pre-insulated terminal string of the present application, which comprises a plurality of terminal string units 1, and the terminal string units 1 are connected in front-to-back and end-to-end; the terminal string unit 1 comprises a material belt 11, a terminal sheath 12 and a terminal metal body 13, one end of the terminal sheath 12 is connected with the terminal metal body 13, and the other end of the terminal sheath 12 is connected with the material belt 11; the material belt 11 of the front terminal string unit 1 is provided with an embedded groove 111 at the rear end, the material belt 11 of the rear terminal string unit 1 is provided with an embedded block 112 at the front end, and the embedded block 112 of the rear terminal string unit 1 is injection molded in the embedded groove 111 of the front terminal string unit 1, so as to embed and connect the rear terminal string unit 1 and the front terminal string unit 1.

[0036] Through the above structure, the plurality of terminal string units connected in front-to-back and end-to-end form a pre-insulated terminal string, and the embedded groove is arranged at the rear end of the material belt of the front terminal string unit, and the embedded block is arranged at the front end of the material belt of the rear terminal string unit; since the embedded block of the rear terminal string unit is injection molded in the embedded groove of the front terminal string unit, the rear terminal string unit and the front terminal string unit are embedded and connected, the connection between the front terminal string unit and the rear terminal string unit is tight and not prone to shaking, the structure is simple, the appearance is flat, the joint is firm, and the user experience is greatly improved.

[0037] Further, the terminal sheath is a nylon sheath, which can also be other insulating sheaths, and the consumer can insert the electrical cable into the terminal metal body and crimp the cable together, and the terminal sheath is used to protect the cable joint.

[0038] In the embodiment, the front end of the fitting groove 111 of the front terminal string unit 1 is provided with a barb 114, the side wall of the fitting block 112 of the rear terminal string unit 1 is provided with a hook groove 116, and the barb 114 and the hook groove 116 are connected.

[0039] In the embodiment, the fitting groove can be a circular groove, which can also be a square groove, and which can also be a groove of other shapes. Figure 1 Figure 7 Further, the terminal metal body can be a circular terminal metal body, which can also be a boss-shaped terminal metal body.

[0040] Through the above structure, since the barb of the front terminal string unit and the hook groove of the rear terminal string unit are connected in a fitting manner, the front and rear shaking between the front and rear terminal string units connected in a head-to-tail manner can be prevented.

[0041] In the embodiment, the side wall of the fitting groove 111 of the front terminal string unit 1 is provided with a fitting hole 113, the side wall of the fitting block 112 of the rear terminal string unit 1 extends a fitting strip 115, and the fitting strip 115 is connected with the fitting hole 113.Through the above structure, since the fitting hole of the front terminal string unit and the fitting strip of the rear terminal string unit are connected in a fitting manner, the up and down shaking and the left and right shaking between the front and rear terminal string units connected in a head-to-tail manner can be prevented.

[0042] Further, the material belt 11 is provided with a positioning hole 117. Through the above structure, the automatic production is facilitated, various specifications of feeding devices can be adapted, the feeding plate length of the terminal machine is not limited, the feeding work stroke of the automatic equipment can be shortened, the working speed of the automatic equipment is improved, and the yield and production efficiency are improved.

[0043] Embodiment two:

[0044] Figure 5 is a flowchart of the first embodiment of the connecting method of the pre-insulated terminal string of the present application, and the method comprises:

[0045] Step S10, providing a front mold for forming the front terminal string unit 1 as described above and a rear mold for forming the rear terminal string unit 1 as described above, and the front end of the rear mold is provided with a plug-in port;

[0046] Step S11, injecting the injection material into the front mold to form the front terminal string unit 1, and the rear end of the material belt 11 of the front terminal string unit 1 is provided with a fitting groove 111;

[0047] Step S12, the fitting groove 222 at the rear end of the tape 11 of the front terminal string unit 1 is placed into the rear mold through the insertion port;

[0048] Step S13, the injection material is injected into the rear mold to form the rear terminal string unit 1;

[0049] Step S14, the injection material is also injected into the fitting groove 111 of the front terminal string unit to form the fitting block 112 at the front end of the tape of the rear terminal string unit 1, so that the rear terminal string unit 1 is connected with the front terminal string unit 1 in a fitting manner, and the pre-insulated terminal string is obtained.

[0050] Through the above steps, after the injection material is injected into the front mold to form the front terminal string unit, the front terminal string unit is taken out, the fitting groove at the rear end of the front terminal string unit is placed into the rear mold, the rear terminal string unit is formed, the injection material is injected into the rear mold to form the rear terminal string unit, and the injection material is also injected into the fitting groove of the front terminal string unit to form the fitting block at the front end of the tape of the rear terminal string unit, so that the rear terminal string unit is connected with the front terminal string unit in a fitting manner, and the pre-insulated terminal string is obtained. Through the above steps, pre-insulated terminal strings of different lengths can be produced to meet the actual needs of consumers. Further, in the manufacturing process, the step of butt joint and installation of the front terminal string unit and the rear terminal string unit is omitted, the production cost is greatly reduced, and the production efficiency and yield are improved.

[0051] Embodiment three:

[0052] Figure 6 It is a flowchart of the second embodiment of the connecting method of the pre-insulated terminal string, and the method comprises:

[0053] Step 20, a front mold used to form the front terminal string unit 1 and a rear mold used to form the rear terminal string unit 1 are provided, and the front end of the rear mold is provided with an insertion port;

[0054] Step S21, the injection material is injected into the front mold to form the front terminal string unit 1, the fitting groove 111 at the rear end of the tape 11 of the front terminal string unit 1 has the barb 114 at the opening of the fitting groove 111, the fitting hole 113 is arranged on the side wall of the fitting groove 111, and the positioning hole 117 is arranged on the tape;

[0055] Step S22, the external taking and placing device is connected with the positioning hole 117, and the fitting groove 222 at the rear end of the tape 11 of the front terminal string unit 1 is placed into the rear mold through the insertion port;

[0056] Through the above steps, automatic production is facilitated, various specifications of feeding devices can be adapted, the feeding work stroke of the automatic equipment can be shortened, the working speed of the automatic equipment is improved, and the yield and production efficiency are improved.

[0057] Step S23, the injection material is injected into the back mold to form the back terminal string unit 1.

[0058] Step S24, the injection material is also injected into the fitting groove 111 of the front terminal string unit to form the fitting block 112 at the front end of the material tape of the back terminal string unit 1, so that the back terminal string unit 1 is connected with the front terminal string unit 1 to obtain the pre-insulated terminal string.

[0059] In this step, the injection material is injected into the barb 114 at the fitting groove 111 of the front terminal string unit 1 to form the hook groove 116 at the side wall of the fitting block 112 of the back terminal string unit 1, so that the hook groove 116 of the back terminal string unit 1 is connected with the barb 116 of the front terminal string unit 1.

[0060] Through the above steps, the barb of the front terminal string unit and the hook groove of the back terminal string unit are connected, so that the front and back terminal string units connected in series can be prevented from shaking.

[0061] Further, the injection material is injected into the fitting hole 113 at the side wall of the fitting groove 111 of the front terminal string unit 1 to form the fitting strip 115 at the side wall of the fitting block 112 of the back terminal string unit 1, so that the fitting strip 115 of the back terminal string unit 1 is connected with the fitting hole 113 of the front terminal string unit 1.

[0062] Through the above steps, the fitting hole of the front terminal string unit and the fitting strip of the back terminal string unit are connected, so that the front and back terminal string units connected in series can be prevented from shaking up and down and left and right.

[0063] Step S25, the material tape 11 of the back terminal string unit has a positioning hole 117, and an external material taking and placing device is connected with the positioning hole of the back terminal string unit to take out the back terminal string from the mold.

[0064] The above is one or more embodiments provided in combination with specific content, and it is not intended that the specific implementation of the present application is limited to these descriptions. Any approximation, similarity, or replacement of the method and structure of the present application, or any technical deduction or replacement under the concept of the present application, should be considered as the protection scope of the present application.

Claims

1. A pre-insulated terminal string, characterized in that, The device includes several terminal string units (1), which are connected end-to-end. Each terminal string unit (1) includes a strip (11), a terminal sleeve (12), and a terminal metal body (13). One end of the terminal sleeve (12) is connected to the terminal metal body (13), and the other end of the terminal sleeve (12) is connected to the strip (11). The rear end of the strip (11) of the front terminal string unit (1) is provided with a fitting groove (111), and the front end of the strip (11) of the rear terminal string unit (1) is provided with a fitting block (112). The fitting block (112) of the rear terminal string unit (1) is injection molded onto the front terminal string unit (1). The fitting groove (111) is used to fit and connect the rear terminal string unit (1) with the front terminal string unit (1). The opening of the fitting groove (111) of the front terminal string unit (1) has a barb (114). The side wall of the fitting block (112) of the rear terminal string unit (1) has a hook groove (116). The barb (114) and the hook groove (116) are connected. The side wall of the fitting groove (111) of the front terminal string unit (1) has a fitting hole (113). The side wall of the fitting block (112) of the rear terminal string unit (1) extends into a fitting strip (115). The fitting strip (115) is connected to the fitting hole (113).

2. The pre-insulated terminal string according to claim 1, characterized in that, The strip (11) is provided with positioning holes (117).

3. A method for connecting a pre-insulated terminal string, characterized in that, Includes the following steps: A front mold for forming a front terminal string unit (1) as described in claim 1 and a rear mold for forming a rear terminal string unit (1) as described in claim 1 are provided, the front end of the rear mold being provided with an insertion port; injection molding material is injected into the front mold to form a front terminal string unit (1), the rear end of the strip (11) of the front terminal string unit (1) having a fitting groove (111); the fitting groove (111) at the rear end of the strip (11) of the front terminal string unit (1) is placed into the rear mold through the insertion port; injection molding material is injected into the rear mold to form a rear terminal string unit (1); and injection molding material is also injected into the fitting groove (111) of the front terminal string unit (1) to form a fitting block (112) at the front end of the strip of the rear terminal string unit (1), so that the rear terminal string unit (1) and the front terminal string unit (1) are fitted and connected to obtain a pre-insulated terminal string.

4. The connection method of a pre-insulated terminal string according to claim 3, characterized in that, The opening of the fitting groove (111) of the front terminal string unit (1) has a barb (114); the side wall of the fitting groove (111) of the front terminal string unit (1) has a fitting hole (113); the material strip of the front terminal string unit (1) is provided with a positioning hole.

5. The connection method of a pre-insulated terminal string according to claim 4, characterized in that, The injection molding material is also injected into the fitting groove (111) of the front terminal string unit (1) to form a fitting block (112) at the front end of the material strip of the rear terminal string unit (1) so that the rear terminal string unit (1) and the front terminal string unit (1) are fitted and connected to obtain a pre-insulated terminal string. The step includes: the injection molding material is injected into the barb (114) at the fitting groove (111) of the front terminal string unit (1) to form a hook groove (116) on the side wall of the fitting block (112) of the rear terminal string unit (1) so that the hook groove (116) of the rear terminal string unit (1) is connected to the barb (114) of the front terminal string unit (1).

6. The connection method of a pre-insulated terminal string according to claim 3, characterized in that, The injection molding material is also injected into the fitting groove (111) of the front terminal string unit (1) to form a fitting block (112) at the front end of the material strip of the rear terminal string unit (1) so that the rear terminal string unit (1) and the front terminal string unit (1) are fitted and connected to obtain a pre-insulated terminal string. The step further includes: the injection molding material is injected into the fitting hole (113) on the side wall of the fitting groove (111) of the front terminal string unit (1) to form a fitting strip (115) on the side wall of the fitting block (112) of the rear terminal string unit (1) so that the fitting strip (115) of the rear terminal string unit (1) is connected to the fitting hole (113) of the front terminal string unit (1).

7. The method for connecting a pre-insulated terminal string according to claim 4, characterized in that, The step of inserting the fitting groove (111) at the rear end of the material strip (11) of the front terminal string unit (1) into the rear mold through the insertion port includes: an external material handling device can be connected to the positioning hole to take the front terminal string unit (1) out of the front mold and put it into the rear mold.

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