Feeding mechanism of PIN inserting machine

Abstract

The utility model belongs to the technical field of power semiconductor module packaging, and relates to a feeding mechanism of a PIN inserting machine, which comprises a tray bearing unit used for installing a connected PIN tray; the connected PINs discharged from the connected PIN tray enter a pin inlet of the PIN inserting machine through the track unit; the tray bearing unit comprises a bearing support, and a rotating motor is connected to the bearing support; the movable end of the rotating motor is connected with a tray bracket; the rail unit comprises a first limiting guide assembly, a second limiting guide assembly and a third limiting guide assembly, and the first limiting guide assembly is lower than the second limiting guide assembly; the structure of the second limiting guide assembly and the structure of the third limiting guide assembly are the same as the structure of the first limiting guide assembly. After the structure is adopted, the beneficial effects are that the structure is simple, the track unit is added, and the connected PINs are stripped from the connected PIN tray in advance before the pins are inserted; the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to power semiconductor module packaging technical field, specifically, it is about a feeding mechanism of PIN inserting machine. BACKGROUND

[0002] With the rapid development of new energy vehicles, the power semiconductor industry is highly competitive. As a common and important device in the production process of power semiconductors, the raw material PIN (PIN for short, which is the PIN connected with the signal of the driving plate for power semiconductor modules) is used with it.

[0003] The market is commonly divided into two categories: connected needles and split needles (or scattered needles). The connected needle is as its name implies, which is packaged by a tray, and the PIN needle head is connected in sequence and wound in the tray. When the needle inserting machine inserts the needle, the tray rotates, and the PIN needle is sequentially discharged from the tray. When the product is close, the needle inserting mechanism of the needle inserting machine cuts the PIN needle head connected part, and then inserts a single PIN needle into the corresponding needle cylinder of the product.

[0004] The split needle is packaged by a dust-free bag, a material belt or a material box, and the split needle is placed in a vibrating disc. The PIN needle is arranged on the needle taking mechanism in a certain direction and angle by the vibrating disc. When the needle inserting machine inserts the needle, the grabbing mechanism grabs the PIN needle on the needle taking mechanism, and then inserts it into the corresponding needle cylinder of the product.

[0005] The two types of PIN needles have advantages and disadvantages in actual application. However, there is a big problem in the feeding process of the connected needle. Because the connected needle is wound in the tray in sequence, it is inevitable to be hit by different directions and different forces during transportation or storage, resulting in alternating winding of the connected needle in the tray. If the connected needle is alternately wound during needle arrangement, the needle inserting machine will be pulled off during needle insertion, resulting in product scrap due to incomplete needle insertion. Moreover, the broken connected needle cannot be used continuously, resulting in material scrap, reducing product yield, and increasing manufacturing cost. Therefore, it is necessary to improve. INVENTION CONTENTS

[0006] In order to solve the above problems of the prior art, the utility model provides a feeding mechanism of PIN inserting machine, which is simple in structure and can straighten the alternately wound connected PIN needle.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] As an aspect of the utility model, a feeding mechanism of PIN inserting machine is provided, which comprises: a tray bearing unit for mounting a connected PIN needle tray;

[0009] The track unit is used for guiding the connected PIN pins from the connected PIN pin tray to enter the needle inlet of the PIN pin inserting machine.

[0010] The tray carrying unit comprises a carrying support, a rotating motor is connected to the carrying support, a tray support is connected to the movable end of the rotating motor.

[0011] The track unit comprises a first limiting guide assembly, a second limiting guide assembly and a third limiting guide assembly, the first limiting guide assembly is lower than the second limiting guide assembly, the second limiting guide assembly and the third limiting guide assembly are located above the tray support, the first limiting guide assembly is located above the discharging direction of the tray support, the structure of the second limiting guide assembly and the structure of the third limiting guide assembly are the same as the structure of the first limiting guide assembly.

[0012] The first limiting guide assembly comprises a support rod, a connecting plate is detachably connected to the support rod, two roller shafts are connected to the connecting plate at intervals, and a guide channel is formed between the two roller shafts.

[0013] Optionally, the first limiting guide assembly is located between the second limiting guide assembly and the third limiting guide assembly.

[0014] Optionally, the second limiting guide assembly and the third limiting guide assembly are located on the same horizontal plane.

[0015] Optionally, more than one screw is connected to the tray support, and a nut is threadedly connected to the screw.

[0016] Optionally, the tray carrying unit further comprises a tray cover, the tray cover is connected to the carrying support, the tray cover is located directly below the tray support, and a preset distance is provided between the tray cover and the tray support.

[0017] Optionally, the tray cover is arc-shaped.

[0018] Optionally, a limiting groove matched with the connected PIN pin is arranged on each of the two roller shafts, and the two limiting grooves are oppositely arranged.

[0019] Optionally, the PIN pin inserting machine further comprises a needle pushing member, the needle pushing member comprises a needle pushing rod, one end of the needle pushing rod is connected to the connecting plate, and a needle passing hole is formed at the other end of the needle pushing rod.

[0020] The feeding mechanism of the PIN pin inserting machine has the advantages of simple structure, increased track unit, and connected PIN pins stripped from the connected PIN pin tray in advance before the insertion of the PIN pins, increased needle pushing member, PIN pin inserting machine stopped immediately when the needle pushing member detects that the pulling force exceeds the upper limit when the connected PIN pins are alternately wound, and high practicability. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0022] Figure 1 This is a three-dimensional front view of the feeding mechanism of the PIN insertion machine of this utility model;

[0023] Figure 2 This is a three-dimensional rear view of the feeding mechanism of the PIN insertion machine of this utility model;

[0024] Figure 3 This is a front view of the feeding mechanism of the PIN insertion machine of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the first limiting guide component and the pin-shifting component of this utility model;

[0026] Figure 5 This is a reference diagram showing the state of the feeding mechanism of the PIN insertion machine of this utility model. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] One embodiment of this application provides a feeding mechanism for a PIN insertion machine, such as... Figures 1-5 As shown, it includes: a tray support unit 1 for mounting the integrated PIN needle tray 3;

[0029] Track unit 2, the integrated PIN pins from the integrated PIN pin tray enter the pin inlet of the PIN insertion machine through track unit 2; it should be noted that the structure and operation of the PIN insertion machine are existing technologies, and will not be described in detail here; the focus of this embodiment is: the feeding process of integrated PIN pins.

[0030] Specifically, the tray carrying unit 1 comprises a carrying support 11, a rotating motor 12 is connected to the carrying support 11, the structure of the rotating motor 12 is the prior art, which will not be repeated here; the movable end of the rotating motor 12 is connected with a tray support 13, the tray support 13 is used to install the connected PIN needle tray 3; the rotating motor 12 drives the tray support 13 to rotate at a preset speed, thereby driving the connected PIN needle tray 3 to rotate at a preset speed, and realizing the discharge of the connected PIN needles on the connected PIN needle tray 3.

[0031] Further, as shown in Figure 1 , the tray support 13 is connected with one or more than one screw rod 14, the screw rod 14 is threadedly connected with a nut 15, the screw rod 14 cooperates with the tray connecting groove of the connected PIN needle tray 3, and then the nut 15 limits the connected PIN needle tray 3, realizing that the connected PIN needle tray 3 is connected to the tray support 13.

[0032] Further, as shown in Figures 1-2 , the tray carrying unit 1 further comprises a tray cover 16, the tray cover 16 is arc-shaped and is connected to the carrying support 11; the tray cover 16 is located directly below the tray support 13, there is a preset distance between the tray cover 16 and the tray support 13, the tray cover 16 is used to support the connected PIN needles of the connected PIN needle tray 3, facilitating the discharge of the connected PIN needles.

[0033] Specifically, as shown in Figure 4 , the track unit 2 comprises a first limiting guide assembly 21, a second limiting guide assembly 22 and a third limiting guide assembly 23, the second limiting guide assembly 22 and the third limiting guide assembly 23 are in the same horizontal plane; the first limiting guide assembly 21 is lower than the second limiting guide assembly 22; the second limiting guide assembly 22 and the third limiting guide assembly 23 are located above the tray support 13; the first limiting guide assembly 21 is located between the second limiting guide assembly 22 and the third limiting guide assembly 23; the first limiting guide assembly 21 is located above the discharge direction of the tray support 13; the structure of the second limiting guide assembly 22 and the structure of the third limiting guide assembly 23 are the same as the structure of the first limiting guide assembly 21; the first limiting guide assembly 21 comprises a support rod 211, a connecting plate 212 is detachably connected to the support rod 211, two roller shafts 213 are spaced apart and connected to the connecting plate 212, a guide channel is formed between the two roller shafts 213, the connected PIN needles of the connected PIN needle tray 3 enter the guide channel of the first limiting guide assembly 21, the guide channel of the second limiting guide assembly 22 and the guide channel of the third limiting guide assembly 23 in sequence, and finally enter the needle inlet of the PIN needle machine.

[0034] Furthermore, the size of the guide channel formed between the two rollers 213 is adjusted according to the size of the integrated PIN pin. This is a common design in the field and will not be described in detail here.

[0035] Furthermore, such as Figure 4 As shown, the guide channel of the first limiting guide component 21 is adapted to the discharge direction of the integrated PIN needle tray 3. The two rollers 213 are respectively provided with limiting grooves 214 adapted to the integrated PIN needle. The two limiting grooves 214 are arranged opposite to each other to limit and guide the integrated PIN needle and straighten the alternately wound integrated PIN needle.

[0036] In one embodiment, such as Figures 1-4 As shown, it also includes a needle-shifting component 4, which is used to sense the needle output speed of the integrated PIN needle; the needle-shifting component 4 includes a needle-shifting rod 41, one end of which is connected to the connecting plate 212, and the other end of which forms a needle-passing hole 42. The integrated PIN needle passes through the needle-passing hole 42. When the pulling force of the integrated PIN needle exceeds the preset value, the needle-shifting component 4 is affected, reminding the operator to stop the PIN insertion machine to prevent the integrated PIN needle from being pulled off.

[0037] In this embodiment, a track unit 2 is added to pre-detach the integrated PIN pin from the integrated PIN pin tray 3 before insertion; a pin-pulling component 4 is added as a tension detection function. When the integrated PIN pins are alternately wrapped, the pin-pulling component 4 detects that the tension exceeds the upper limit, and the PIN insertion machine immediately stops running.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0040] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0041] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0042] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A feeding mechanism of a PIN needle machine, characterized in that, It includes: tray carrying unit for mounting of the connected PIN tray; Track unit, the connected PIN pin from the connected PIN tray enters the needle inlet of the PIN pin inserting machine through the track unit; The tray carrying unit includes a carrying support, a rotating motor is connected to the carrying support; a tray support is connected to the movable end of the rotating motor; The track unit includes a first limiting guide assembly, a second limiting guide assembly and a third limiting guide assembly, the first limiting guide assembly is lower than the second limiting guide assembly; the second limiting guide assembly and the third limiting guide assembly are located above the tray support; the first limiting guide assembly is located above the discharge direction of the tray support; the structure of the second limiting guide assembly and the structure of the third limiting guide assembly are the same as the structure of the first limiting guide assembly; The first limiting guide assembly includes a support rod, a connecting plate is detachably connected to the support rod, two roller shafts are connected to the connecting plate at intervals, and a guide channel is formed between the two roller shafts.

2. The feeding mechanism of the PIN needle machine according to claim 1, wherein, The first limiting guide assembly is located between the second limiting guide assembly and the third limiting guide assembly.

3. The feeding mechanism of the PIN needle inserting machine according to claim 2, wherein, The second limiting guide assembly and the third limiting guide assembly are on the same horizontal plane.

4. The pin insertion machine loading mechanism of claim 1 wherein, More than one screw is connected to the tray support, and a nut is threadedly connected to the screw.

5. The pin insertion machine loading mechanism of claim 1 wherein, The tray carrying unit further includes a tray cover, the tray cover is connected to the carrying support; the tray cover is located directly below the tray support, and there is a preset distance between the tray cover and the tray support.

6. The pin insertion machine loading mechanism of claim 5, wherein, The tray cover is arc-shaped.

7. The pin insertion machine loading mechanism of claim 1 wherein, Limiting grooves adapted to the connected PIN pins are respectively provided on the two roller shafts, and the two limiting grooves are oppositely arranged.

8. The pin insertion machine loading mechanism of claim 1 wherein, It also includes a needle shifting piece, the needle shifting piece includes a needle shifting rod, one end of the needle shifting rod is connected to the connecting plate, and a needle hole is formed at the other end of the needle shifting rod.

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