CN201411170Y - Reel sheath of surface mount device - Google Patents

Abstract

The utility model discloses a reel cover for surface-mounted devices, which is installed on the inner edge of a reel loaded with a plurality of surface-mounted devices; the reel cover is an integrated structure, and has elasticity that can be slightly stretched and deformed, and at least includes a circular hollow portion for mounting the reel, and an annular inlay that can be embedded between the upper and lower surfaces of the reel as a supporting structure. The utility model uses the inlay as a supporting structure, so that when the reel is vacuum-packed, the upper and lower surfaces of the reel will not be squeezed, which can prevent the layers of material strips loaded with surface-mounted devices from being squeezed and deformed, thereby damaging the surface-mounted devices.

Description

Reel Housing for Surface Mount Devices

technical field

The utility model relates to a reel sheath, in particular to a sheath arranged on a reel loaded with surface-adhesive devices.

Background technique

Surface mount devices, such as light-emitting diodes, photodiodes, resistors, transistors, integrated circuits IC.. and other active and passive electronic components, are usually placed on a special reel for storage after packaging. As shown in Figure 1, the reel includes an upper disk surface A and a lower disk surface B. There is a winding column C between the upper disk surface A and the lower disk surface B. The winding column C is continuously surrounded by a multi-layer material tape D, and the material tape There are many neatly arranged grid positions (not shown) on D for placing the aforementioned surface mount devices. The reel is usually set on a feeder, which feeds the tape to a surface mounter, which takes the SMD device in the compartment at the preset access point, and then puts the The surface mount device is arranged on the circuit substrate. Therefore, the design of the reel speeds up the speed of placing the electronic components on the circuit substrate.

In order to prevent the surface-mounted devices on the reel tape from being contaminated with dust, the entire reel is usually vacuum-packed and unpacked when the reel is to be used. When performing vacuum packaging, in order to avoid the extrusion of the upper surface A and the lower surface B of the reel due to vacuuming, the material tape D will also be squeezed and deformed to destroy the surface-mounted devices in each compartment, so it will be on the reel surrounding support structures. As shown in the figure, the existing supporting structure includes a ring-shaped sponge E, which is embedded between the upper surface A and the lower surface B, and the sponge E is covered with a slightly rigid flexible belt F, and then fix the belt body F with an adhesive tape (not shown in the figure), and this support structure can achieve a support effect.

However, the sponge texture of this support structure is relatively soft, and the support force is relatively poor. The flexible belt body is used as the main support completely. There are many components, and many procedures are required to combine them on the reel, which is quite time-consuming and costly.

Utility model content

The main purpose of the technical solution of the utility model is to provide a reel sheath for surface-mounted devices, which is used to solve the problem that the reel support structure in the prior art has many components, and multiple procedures are required for combining with the reel, which is quite time-consuming and costly. The problem.

In order to achieve the above purpose, the utility model provides a reel sheath for surface mount devices, which is installed around a reel loaded with many surface mount devices. Elasticity of deformation, the sheath at least includes a circular hollow for installing the reel, and an insert that can be embedded between an upper disc surface and a lower disc surface of the reel as a supporting structure.

Preferably, in the reel sheath of the above-mentioned surface mount device, the flange is in the shape of a ring, and one side of the flange is oblique to the hollow so that the flange can be smoothly inserted into the upper disk surface and The bevel between the lower facets.

Preferably, in the reel sheath of the above-mentioned surface mount device, the said flange is in the shape of a ring, and two ring-shaped thin surfaces are arranged symmetrically on an upper surface and a lower surface of the said flange, and the two thin surfaces are aligned with the Between the upper surface and the lower surface, a seam for embedding the upper disk surface and the lower disk surface is respectively formed.

Preferably, in the reel sheath of the above-mentioned surface mount device, an upper surface and a lower surface of the flange of the reel sheath respectively form an outwardly expanded step edge with a diameter larger than that of the hollow part .

Preferably, in the reel sheath of the above-mentioned surface mount device, the shape of the reel sheath is square.

Based on this, the reel sheath of the surface mount device provided by the utility model is provided with a sheath around a reel loaded with a plurality of surface mount devices. The sheath adopts plastic material to make an integral structure, and the sheath structure at least includes a circular hollow for installing the reel, and an insert edge that can be embedded between the upper and lower surfaces of the reel. The plastic material has higher compressive strength than the traditional sponge sheath, and retains the elasticity that can be slightly stretched and deformed to facilitate the insertion of the flange between the upper and lower panels during assembly as a supporting structure. When the reel is vacuum-packed, the two plates will not be squeezed, which can prevent the layer-by-layer material tapes loaded with surface-mounted devices from being squeezed and deformed, thereby damaging the surface-mounted devices. In addition, the one-piece sheath can not only save production cost, but also the sheath is embedded and combined with the reel, which is very convenient for installation.

Therefore, the beneficial effect of the utility model is that the designed reel sheath is a single component, and the way the sheath is arranged on the reel only needs to be embedded, so the structure of the sheath described in the utility model is simple and easy to assemble. Can save cost and assembly time.

Description of drawings

Fig. 1 is the combined sectional view of the reel sheath of the surface mount device of the prior art;

Fig. 2 is an exploded perspective view of an embodiment of the reel sheath of the surface mount device described in the present invention;

Fig. 3 is the combined sectional view of the reel sheath of the surface mount device described in the present invention, an embodiment;

Fig. 4 is an exploded perspective view of another embodiment of the reel sheath of the surface mount device described in the present invention;

Fig. 5 is a combined sectional view of the embodiment of the reel sheath of the surface mount device described in the present invention;

Fig. 6 is an exploded perspective view of another embodiment of the reel sheath of the surface mount device described in the present invention;

Fig. 7 is a combined sectional view of the embodiment of the reel sheath of the surface mount device described in the present invention;

Figure 8 is a schematic diagram of an embodiment of placing the sheathed reel in the box;

Fig. 9 is a schematic diagram of an embodiment showing that the sheath is not in contact with the material tape after the material tape on the reel has been used for a period of time.

Symbol description of main components

1 reel

11 on the plate

12 lower panel

13 around the column

2 strips

3 sheaths

30 hollow out

31 Inlay

311 bevel

3' Sheath

31' insert

32' Thin Noodles

33' caulk

3" Sheath

31" flange

32" step edge

A on the plate

B lower panel

C around the column

D tape

E sponge

F flexible belt

Detailed ways

The implementation of the present utility model will be described in more detail below in conjunction with the drawings and component symbols, so that staff familiar with the technology can implement it after studying this specification.

As shown in Figure 2, the reel 1 loaded with surface mount devices includes an upper disk surface 11 and a lower disk surface 12, and a winding column 13 is arranged between the upper disk surface 11 and the lower disk surface 12, and the winding column 13 is continuously surrounded by multi-layer materials. Belt 2. There are many neatly arranged compartments (not shown) on the material belt 2 for placing active and passive electronic components such as light-emitting diodes, photodiodes, resistors, triodes, and integrated circuits (IC). The utility model mainly arranges a sheath 3 between the upper plate surface 11 and the lower plate surface 12, and uses the sheath 3 as a supporting structure. When the reel 1 is vacuum-packed, the upper disk surface 11 and the lower disk surface 12 will not be squeezed, which can prevent the material tape 2 carrying the surface mount device from being squeezed and deformed, thereby damaging the surface mount device. The utility model does not limit the shape of the sheath, and various embodiments of the sheath will be described below.

Please refer to FIG. 2 and FIG. 3 , which are respectively an exploded perspective view and a combined sectional view of an embodiment of the reel sheath of the surface mount device of the present invention. The sheath 3 is an integrally formed structure, which is mainly composed of a ring-shaped flange 31 and a circular hollow 30 in the central area of the flange 31. The flange 31 can be embedded in the upper surface of the reel 1 when assembled. 11 and the lower disc surface 12 are close to the edge of the circumference, and the space in the circular hollow 30 is the place where the winding material tape 2 is arranged. In this embodiment, the sheath 3 is made of plastic material, so although the sheath 3 is integrally formed, it still retains the elasticity that can be slightly stretched and deformed, so that it can be inserted into the upper plate 11 and Between the 12 lower plates.

In addition, the inner diameter of the flange 31 is smaller than the outer diameters of the upper disk surface 11 and the lower disk surface 12. In order to facilitate assembly, the utility model makes an inclined surface 311 obliquely to the hollowed out part on one side of the flange 31. When the sheath 3 is combined with the reel 1, the bevel 31 is guided by the inclined surface 311 to insert the flange 31 between the upper disk surface 11 and the lower disk surface 12, and is sleeved on the surface of the material strip 2 to be fixed. The flange 31 is used as a supporting structure between the upper panel 11 and the lower panel 12. During vacuum packaging, the upper panel 11 and the lower panel 12 will not be squeezed, which can further protect the SMD.

Please refer to FIG. 4 and FIG. 5 , which are respectively an exploded perspective view and a combined sectional view of another embodiment of the reel sheath of the surface mount device of the present invention. The sheath 3' is made of plastic material and has an integrated structure. The sheath 3' includes a ring-shaped flange 31' and a circular hollow 30 in the central area of the flange 31'. The inner diameter of the flange 31' is smaller than the upper disk surface 11 and the outer diameter of the lower plate surface 12, two ring-shaped thin surfaces 32' are symmetrically arranged on the upper surface and the lower surface of the flange 31', and the two thin surfaces 32' and the upper surface and the lower surface of the flange 31' are respectively formed One caulk 33'. When the flange 31' is assembled, it can be embedded between the upper disk surface 11 and the lower disk surface 12 of the reel 1 close to the circumferential edge, and the space in the circular hollow 30 is the setting of the material tape 2 wound together. At the position, the edges of the upper disk surface 11 and the lower disk surface 12 are embedded in the upper and lower caulking seams 33' respectively, so as to fix the sheath 3' on the reel 1. In this embodiment, the sheath 3' is made of plastic material, so although the sheath 3' is integrally formed, it still retains the elasticity that can be slightly stretched and deformed, so that it can be easily inserted into the upper body during assembly. Between the disk surface 11 and the lower disk surface 12 . The flange 31' serves as a supporting structure between the upper panel 11 and the lower panel 12, so that the upper panel 11 and the lower panel 12 will not be squeezed during vacuum packaging, which can further protect the SMD.

The sheath 3' of this embodiment has a caulking 33' compared with the sheath of the previous embodiment. The purpose is that when the material tape 2 on the reel 1 is not fully loaded, the outermost surface of the material tape 2 and the upper disk surface 11 The distance between the circumferences of the will be the largest, and if the previous sheath is used, there will be a shift in the position of the sheath. Therefore, when the strip 2 is not fully loaded, the sheath 3' needs to be used, and the caulking 33' is sleeved on the peripheral edge of the upper disk surface 11 and the lower disk surface 12 of a reel, so that the sheath The sleeve 3' is in the correct fixed position.

Please refer to FIG. 6 and FIG. 7 , which are respectively an exploded perspective view and a combined sectional view of another embodiment of the reel sheath of the surface mount device of the present invention. The shape of the sheath 3" in this embodiment is square. There is a ring-shaped flange 31" in the center of the sheath 3" and a circular hollow 30 in the central area of the flange 31". The inner diameter of the flange 31" is smaller than that of the upper disk. 11 and the outer diameter of the lower disk surface 12, the upper surface and the lower surface of the sheath 3" on the edge of the 30 places in the hollowed-out place respectively form an outwardly expanded step edge 32 " whose diameter is larger than that of the 30 places in the hollowed-out place.

The flange 31" can be embedded between the upper disk surface 11 and the lower disk surface 12 of the reel 1 close to the circumferential edge during assembly, and the space in the circular hollow 30 is for the setting of the material tape 2 wound together. , the upper disk surface 11 and the lower disk surface 12 respectively fall on the outer expansion step edge 32" of the upper surface and the lower surface of the sheath 3". In this embodiment, the sheath 3" is made of plastic material, so although The sheath 3" is integrally formed, but still retains the elasticity of being slightly stretched and deformed, so that it can be placed between the upper panel 11 and the lower panel 12 during assembly. The flange 31" is used as the upper panel 11 and the lower panel. The supporting structure between 12 prevents the upper plate surface 11 and the lower plate surface 12 from being squeezed during vacuum packaging, which can further protect the surface mount device.

Please refer to Fig. 9, the sheath 3 of this embodiment has an outer expansion step edge 32 "compared with the sheath of the first embodiment, the purpose is that when the material tape 2 on the reel 1 is not fully loaded The distance between the outermost surface and the circumference of the upper disc surface 11 will be the largest, and if the sheath of the first embodiment is used, the position of the sheath will be shifted. Therefore, when the material tape 2 is not fully loaded, the sheath 3" needs to be used, and the upper and lower outer expansion steps 32" of the sheath 3" are used to push against the edges of the upper disk surface 11 and the lower disk surface 12 of the reel 1, Then the sheath 3" can be in the correct fixed position.

Please refer to Figure 8. On the other hand, the shape of the sheath 3" is designed as a square, which is convenient for placing the reel 1 combined with the sheath 3" in the box, and the reel 1 is fixed in the center through the sheath 3". It can prevent the reel 1 from shaking in the box during transportation.

The above are only preferred embodiments for explaining the utility model, and are not intended to limit the utility model in any form. Therefore, any modifications related to the utility model under the same creative spirit Or changes, all should still be included within the protection scope of the present utility model.

Claims (5)

1. the reel sheath of a surface mount device, be to be installed on a reel that is loading numerous surface mount devices to locate on every side, it is characterized in that, this sheath is structure as a whole, and has the slightly elasticity of tensile deformation, this sheath includes a circular hollow out place that this reel is installed at least, and one can embed this reel one upper disk surface and once between the card as the embedding edge of supporting construction.

2. the reel sheath of surface mount device as claimed in claim 1 is characterized in that, described embedding edge is circular, and described embedding edge wherein one side reaches the inclined-plane between the card down for oblique described hollow out place makes described embedding edge embed described upper disk surface smoothly.

3. the reel sheath of surface mount device as claimed in claim 1, it is characterized in that, described embedding edge is circular, a upper surface and a lower surface at described embedding edge, be symmetrical arranged the sake of two ring-types, between this two sake and this upper surface and this lower surface, form one respectively and supply to be embedded described upper disk surface and the described filleting of card down.

4. the reel sheath of surface mount device as claimed in claim 1 is characterized in that, a upper surface and a lower surface of the described embedding edge of described reel sheath, form respectively the more described hollow out of diameter place big extend out terrace edge.

5. the reel sheath of surface mount device as claimed in claim 4 is characterized in that the external form of described reel sheath is square.

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