Particle carrier sleeve roller forming die and assembly method

Abstract

The application discloses a particle carrier sleeve type roller forming die and an assembling method, and belongs to the field of forming dies. The particle carrier sleeve type roller forming die comprises a seat body, a cover body, an inner sleeve and an outer sleeve. The outer sleeve is fixedly sleeved on the outer sleeve. The outer sleeve is provided with a plurality of forming holes. The outer side wall of the inner sleeve is provided with a plurality of convex bodies. The first air suction channels are formed between the adjacent convex bodies, the outer side wall of the inner sleeve and the inner side wall of the outer sleeve. The first air suction channels are communicated with the forming holes. The inner part of the inner sleeve is provided with a plurality of second air suction channels. The second air suction channels are communicated with the first air suction channels. The communication positions are not located in the projection range of the forming holes on the inner sleeve. The seat body is provided with the first air suction holes communicated with the second air suction channels. The inner sleeve and the outer sleeve are combined in the form of sleeve assembly. Only one inner sleeve and one outer sleeve are needed for sleeve assembly. The forming piece and the gasket are not needed to be assembled in the form of parallel stacking. There is no cumulative tolerance. The assembling is convenient. The deformation is not easy. The precision is high.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of forming molds, in particular to a particle carrier tape sleeve type roller forming mold and an assembling method. BACKGROUND

[0002] Carrier tape refers to a plastic carrier widely used in the packaging of SMT electronic components such as ICs, resistors, inductors, capacitors, connectors, LEDs, fuses, switches, relays, connectors, oscillators, diodes, and triodes. The plastic carrier usually has a certain shape of accommodating hole, also known as a pocket.

[0003] The existing carrier tape forming usually needs to use a carrier tape forming mold, and the plastic softening characteristics are used to provide vacuum suction force while the plastic is softening, so that the carrier tape reaches a certain shape and is cooled and solidified into a shape.

[0004] The traditional carrier tape forming mold, such as the carrier tape forming mold with simple structure, convenient forming, and improved precision disclosed in CN214268088U, includes a seat body, a column body provided on one end surface of the seat body, a cover body connected to the end of the column body, two driving edges tightly attached to the cover body and the seat body respectively, a gasket and a forming piece located between the two driving edges, and the number of the gasket and the forming piece is the same, and the gasket and the forming piece are alternately arranged. The carrier tape forming mold of the utility model is matched by the seat body, the column body, the cover body, the driving edge, the gasket, and the forming piece. When in use, the driving edge, the gasket, and the forming piece are sleeved on the column body, and then the cover body is used for connection and compression. When the seat body rotates, the entire device is rotated, the driving edge drives the carrier tape and determines the positioning hole.

[0005] The forming part of the above-mentioned traditional carrier tape forming mold is composed of a plurality of forming pieces and gaskets arranged side by side and stacked, which results in high assembly difficulty, time-consuming assembly, large cumulative tolerance after assembly, easy deformation, and insufficient precision. Moreover, the traditional carrier tape forming mold has only two opposite air suction positions at each pocket forming position, i.e., it adopts a two-side air suction mode. This air suction mode is uneven and insufficient in air suction, resulting in poor quality of the formed pockets. SUMMARY

[0006] The present application aims to provide a particle carrier tape sleeve type roller forming mold and an assembling method to overcome at least one of the above-mentioned defects in the prior art.

[0007] To achieve this purpose, the present application adopts the following technical solutions:

[0008] The particle belt type roller forming die provided by the application comprises a seat body, a cover body, an inner sleeve and an outer sleeve, the cover body, the inner sleeve and the outer sleeve are fixedly connected, the inner sleeve is fixedly sleeved on the seat body, the outer sleeve is fixedly sleeved on the inner sleeve, the outer sleeve is provided with a plurality of forming holes, the outer side wall of the inner sleeve is provided with a plurality of convex bodies, a first air suction channel is formed between adjacent convex bodies, the outer side wall of the inner sleeve and the inner side wall of the outer sleeve, the first air suction channel is communicated with the forming hole, the inner part of the inner sleeve is provided with a plurality of second air suction channels, the second air suction channels are communicated with the first air suction channel, and the communication position is not located in the projection range of the forming hole on the inner sleeve, and the seat body is provided with a first air suction hole communicated with the second air suction channel.

[0009] Preferably, the communication position of the forming hole and the first air suction channel is completely located in the first air suction channel.

[0010] Preferably, the maximum depth of the first air suction channel is 0.08-0.18mm.

[0011] Preferably, the inner sleeve and the outer sleeve are both annular.

[0012] Preferably, the plurality of convex bodies are equidistantly distributed along the circumference of the inner sleeve, and each convex body extends along the width direction of the inner sleeve, the length of the convex body is consistent with the width of the inner sleeve.

[0013] Preferably, the second air suction channel comprises a second air suction hole and a third air suction hole, the inner part of the inner sleeve is provided with a second air suction hole, the inner sleeve between the first air suction channel and the second air suction hole is provided with a plurality of third air suction holes, the plurality of third air suction holes are equidistantly distributed along the width direction of the inner sleeve, the third air suction holes are respectively communicated with the first air suction channel and the second air suction hole, and the second air suction hole is communicated with the first air suction hole.

[0014] Preferably, the second air suction channel is equidistantly distributed along the circumference of the inner sleeve, and the vertical distance between the center line of the second air suction hole and the outer side wall of the inner sleeve is 6.20-8.50mm.

[0015] Preferably, the plurality of forming holes are divided into a plurality of first hole groups equidistantly distributed along the width direction of the outer sleeve, each first hole group comprises forming holes equidistantly distributed along the circumference of the outer sleeve, the plurality of third air suction holes are divided into a plurality of second hole groups equidistantly distributed along the width direction of the inner sleeve, each second hole group comprises third air suction holes equidistantly distributed along the circumference of the inner sleeve, and at least one second hole group is arranged between adjacent first hole groups.

[0016] Preferably, the width of the inner sleeve and the outer sleeve is consistent, the two end walls of the inner sleeve are both provided with a plurality of air suction grooves, and the second air suction hole and the first air suction channel both penetrate the two end parts of the inner sleeve and are respectively communicated with the two air suction grooves.

[0017] The application further provides a particle carrier sleeve roller forming die assembly method for assembling the particle carrier sleeve roller forming die, comprising the following steps: heating and expanding the outer sleeve, then sleeving the outer sleeve outside the inner sleeve in a room temperature state, waiting for the outer sleeve to cool until the outer sleeve is tightly fastened to the inner sleeve, then sleeving the inner sleeve to the seat body, and fastening and connecting the cover body, the inner sleeve and the seat body through the fastener.

[0018] The application has the following beneficial effects:

[0019] 1. The inner sleeve and the outer sleeve are assembled in a sleeving manner, only one inner sleeve and one outer sleeve are needed, and there is no need for a plurality of forming pieces and gaskets to be assembled in a parallel stacking manner, so that there is no cumulative tolerance, the assembly is convenient, and the precision is high.

[0020] 2. Only the forming hole needs to be processed on the outer sleeve, the second air suction channel needs to be processed on the inner sleeve, and the forming and air suction structures required for pocket forming can be realized through the setting of the convex body, the forming structure and the air suction structure are separated and arranged in a sleeving and combined manner, the functions are clear, and the mold manufacturing difficulty is low.

[0021] 3. The first air suction channel formed between the adjacent convex body, the outer side wall of the inner sleeve and the inner side wall of the outer sleeve realizes air suction from the periphery of the forming hole, the air suction is uniform, the air suction amount is increased, and the forming quality is greatly improved.

[0022] 4. The vertical distance between the center line of the second air suction hole and the outer side wall of the inner sleeve is set in combination with the maximum depth requirement of the first air suction channel to ensure the air suction pressure and effectively form a pocket with good quality.

[0023] 5. The air suction grooves arranged at the left and right ends of the inner sleeve can realize air suction from the side edges of the end portions of the inner sleeve, cooperate with the air suction positions of the third air suction holes, ensure that there are air suction positions on the left and right sides of each forming hole, ensure the air suction uniformity, and improve the pocket forming quality.

[0024] 6. Only the outer sleeve needs to be sleeved on the inner sleeve after being heated, and then the cover body, the inner sleeve and the seat body are fastened and connected together through the fastener, so that the assembly is very simple and convenient, there is no cumulative tolerance, and the precision is extremely high. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the three-dimensional structure of the application.

[0026] Figure 2 is a schematic diagram of the three-dimensional exploded structure of the application.

[0027] Figure 3 is a schematic diagram of the left view structure of the application.

[0028] Figure 4 is Figure 3The schematic diagram of the sectional structure of A-A direction.

[0029] Figure 5 The schematic diagram of the sectional structure of A-A direction. Figure 4 The schematic diagram of the enlarged structure of B.

[0030] Figure 6 The schematic diagram of the sectional structure of A-A direction.

[0031] Figure 7 The schematic diagram of the sectional structure of A-A direction. Figure 6 The schematic diagram of the enlarged structure of C.

[0032] Figure 8 The schematic diagram of the sectional structure of A-A direction.

[0033] Figure 9 The schematic diagram of the sectional structure of A-A direction. Figure 8 The schematic diagram of the enlarged structure of D.

[0034] Figure 10 The schematic diagram of the sectional structure of A-A direction.

[0035] The signs in the drawings are as follows: 1-base body, 2-cover body, 3-inner sleeve, 4-outer sleeve, 5-molded hole, 6-protruding body, 7-first air suction channel, 8-second air suction channel, 9-first air suction hole, 81-second air suction hole, 82-third air suction hole, 10-air suction groove. DETAILED DESCRIPTION

[0036] The present application will be further described in conjunction with the drawings and specific embodiments.

[0037] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art. In the description of the present application, it is understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0038] As Figures 1 to 10As shown, the particle carrying sleeve type roller forming die provided in the embodiment includes a base body 1, a cover body 2, an inner sleeve 3, and an outer sleeve 4. The cover body 2, the inner sleeve 3, and the outer sleeve 4 are fixedly connected. The inner sleeve 3 is fixedly sleeved on the base body 1. The outer sleeve 4 is fixedly sleeved outside the inner sleeve 3. The inner sleeve 3 and the outer sleeve 4 are both annular. The outer sleeve 4 has a plurality of forming holes 5. The outer side wall of the inner sleeve 3 has a plurality of convex bodies 6. The first air suction channel 7 is formed between the adjacent convex bodies 6, the outer side wall of the inner sleeve 3, and the inner side wall of the outer sleeve 4. The first air suction channel 7 is in communication with the forming holes 5. The inner sleeve 3 has a plurality of second air suction channels 8. The second air suction channels 8 are in communication with the first air suction channel 7. The communication position is not located in the projection range of the forming holes 5 on the inner sleeve 3, so that the communication position does not correspond to the forming holes 5, ensuring the effective forming of the pocket. The base body 1 has a first air suction hole 9 in communication with the second air suction channel 8. The first air suction hole 9 is in communication with an external vacuum equipment. The inner sleeve 3 and the outer sleeve 4 are combined in a sleeved manner. Only one inner sleeve 3 and one outer sleeve 4 are sleeved, without the need for a plurality of forming pieces and gaskets to be assembled in parallel. There is no cumulative tolerance. The assembly is convenient and not easy to deform, with high precision. Only the forming holes 5 need to be processed on the outer sleeve 4, and the second air suction channels 8 need to be processed on the inner sleeve 3. The forming and air suction structure required for pocket forming can be realized through the setting of the convex bodies 6. The forming structure and the air suction structure are separately arranged and combined in a sleeved manner. The functions are clear. The die manufacturing difficulty is low. The convex bodies 6 of the embodiment are integrally formed with the inner sleeve 3. The first air suction channel 7 is formed between the adjacent convex bodies 6, the outer side wall of the inner sleeve 3, and the inner side wall of the outer sleeve 4. The air suction is realized from the periphery of the forming holes 5. The air suction is uniform. The air suction amount is increased. The forming quality is greatly improved.

[0039] The diameter of the forming hole 5 gradually decreases from the outer side of the outer sleeve 4 to the inner side. The air suction pressure is changed. The forming effect is better. The communication position of the forming hole 5 and the first air suction channel 7 is completely located in the first air suction channel 7. The full-package air suction from the periphery of the forming hole 5 is guaranteed. That is, the air suction can be performed from each position around the periphery of the forming hole 5.

[0040] The maximum depth of the first air suction channel 7 is 0.12 mm. Through the requirement of the maximum depth of the first air suction channel 7, the required air suction amount is ensured while the forming effect of the pocket is ensured.

[0041] The plurality of convex bodies 6 are equidistantly distributed along the circumference of the inner sleeve 3. Each convex body 6 extends along the width direction of the inner sleeve 3. The length of the convex body 6 is consistent with the width of the inner sleeve 3. The convex body 6 is arranged in cooperation with the inner sleeve 3 and the outer sleeve 4 to form the first air suction channel 7 which is equidistantly distributed along the circumference.

[0042] The second air suction passage 8 includes a second air suction hole 81 and a third air suction hole 82, the inside of the inner sleeve 3 has one second air suction hole 81, the inner sleeve 3 between the first air suction passage 7 and the second air suction hole 81 has three third air suction holes 82, the three third air suction holes 82 are spaced along the width direction of the inner sleeve 3, the third air suction holes 82 are respectively communicated with the first air suction passage 7 and the second air suction hole 81, and the second air suction hole 81 is communicated with the first air suction hole 9. The plurality of forming holes 5 are divided into four groups of first hole groups which are equidistantly distributed along the width direction of the outer sleeve 4, each group of first hole groups includes the forming holes 5 which are equidistantly distributed along the circumference direction of the outer sleeve 4, the plurality of third air suction holes 82 are divided into three groups of second hole groups which are equidistantly distributed along the width direction of the inner sleeve 3, each group of second hole groups includes the third air suction holes 82 which are equidistantly distributed along the circumference direction of the inner sleeve 3, and there is one group of second hole groups between adjacent first hole groups. In this way, one first air suction passage 7 can be communicated with three second air suction passages 8, and the plastic forming pockets corresponding to the four forming holes 5 are realized. In the embodiment, there is one third air suction hole 82 between the two forming holes 5 which are adjacent in the width direction, so that the three third air suction holes 82 realize air suction of the first air suction passage 7, and the pockets with good forming quality are ensured.

[0043] The second air suction passage 8 is equidistantly distributed along the circumference direction of the inner sleeve 3, and the vertical distance between the center line of the second air suction hole and the outer side wall of the inner sleeve 3 is 7.58 mm. By setting the vertical distance between the center line of the second air suction hole and the outer side wall of the inner sleeve 3, in combination with the maximum depth requirement of the first air suction passage 7, the air suction pressure is ensured, and the pockets with good effective forming quality are effectively formed.

[0044] The width of the inner sleeve 3 and the outer sleeve 4 is consistent, the two end walls of the inner sleeve 3 have a plurality of air suction grooves 10, and the second air suction hole 81 and the first air suction passage 7 both penetrate the two end portions of the inner sleeve 3 and are respectively communicated with the two air suction grooves 10. By setting the air suction grooves 10 on the left and right ends of the inner sleeve 3, air suction from the side edges of the end portions of the inner sleeve 3 is realized, which is matched with the air suction positions of the third air suction holes 82, so that air suction positions are ensured on the left and right sides of each forming hole 5, the air suction uniformity is ensured, and the pocket forming quality is improved.

[0045] The application also provides a particle carrier sleeve type roller forming die assembly method, which is used for assembling the particle carrier sleeve type roller forming die and includes the following steps:

[0046] The outer sleeve 4 is heated and expanded, and then is sleeved outside the inner sleeve 3 in a room temperature state. After waiting for the outer sleeve 4 to cool down until the outer sleeve 4 is tightly fastened outside the inner sleeve 3, the inner sleeve 3 is sleeved outside the seat body 1, and the cover body 2, the inner sleeve 3 and the seat body 1 are fastened and connected through the fasteners. The fasteners in this embodiment are screws. In this way, only the outer sleeve 4 needs to be heated and then sleeved outside the inner sleeve 3, and then the cover body 2, the inner sleeve 3 and the seat body 1 are fastened and connected together through the fasteners, so that the assembly is very simple and convenient, and there is no cumulative tolerance, and the precision is very high.

[0047] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A particle carrier sleeve roller forming die, characterized in that: comprising a seat body, a cover body, an inner sleeve, and an outer sleeve; the cover body, the inner sleeve, and the outer sleeve are fixedly connected, the inner sleeve is fixedly sleeved on the seat body; the outer sleeve is fixedly sleeved on the inner sleeve; the outer sleeve has a plurality of forming holes, the outer side wall of the inner sleeve has a plurality of convex bodies, the first air suction channels are formed between adjacent convex bodies, the outer side wall of the inner sleeve, and the inner side wall of the outer sleeve, the first air suction channels are communicated with the forming holes; the inner part of the inner sleeve has a plurality of second air suction channels, the second air suction channels are communicated with the first air suction channels, and the communication part is not located in the projection range of the forming holes on the inner sleeve; the seat body has a first air suction hole communicated with the second air suction channel; the communication part of the forming hole and the first air suction channel is completely located in the first air suction channel; the inner sleeve and the outer sleeve are annular; a plurality of convex bodies are equidistantly distributed along the circumference of the inner sleeve, and each convex body extends along the width direction of the inner sleeve, the length of the convex body is consistent with the width of the inner sleeve; the second air suction channel comprises a second air suction hole and a third air suction hole; the inner part of the inner sleeve has one second air suction hole; the inner sleeve between the first air suction channel and the second air suction hole has a plurality of third air suction holes, a plurality of third air suction holes are equidistantly distributed along the width direction of the inner sleeve, and the third air suction holes are respectively communicated with the first air suction channel and the second air suction hole; the second air suction hole is communicated with the first air suction hole.

2. The particle carrier sleeve roller forming die according to claim 1, characterized in that: the maximum depth of the first air suction channel is 0.08-0.18 mm.

3. The particle carrier sleeve roller forming die according to claim 1, characterized in that: the second air suction channels are equidistantly distributed along the circumference of the inner sleeve; the vertical distance between the center line of the second air suction hole and the outer side wall of the inner sleeve is 6.20-8.50 mm.

4. The particle carrier sleeve roller forming die according to claim 3, characterized in that: a plurality of forming holes are divided into a plurality of first hole groups equidistantly distributed along the width direction of the outer sleeve, each first hole group comprises forming holes equidistantly distributed along the circumference of the outer sleeve; a plurality of third air suction holes are divided into a plurality of second hole groups equidistantly distributed along the width direction of the inner sleeve, each second hole group comprises third air suction holes equidistantly distributed along the circumference of the inner sleeve; there is at least one second hole group between adjacent first hole groups.

5. The particle carrier sleeve roller forming die according to claim 1, characterized in that: the width of the inner sleeve and the outer sleeve is consistent; both end walls of the inner sleeve have a plurality of air suction grooves; the second air suction hole and the first air suction channel both penetrate through both ends of the inner sleeve and are respectively communicated with two air suction grooves. A method for assembling the particle carrier sleeve roller forming die according to any one of claims 1-5, comprising the following steps: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 6. A method of assembling a particle carrier sleeve forming die, characterized by, ​ The outer sleeve is heated to expand, and then is sleeved outside the inner sleeve in a room temperature state. After waiting for the outer sleeve to cool down, the outer sleeve is tightly fastened outside the inner sleeve. Then, the inner sleeve is sleeved on the seat body, and the cover body, the inner sleeve and the seat body are fastened and connected through the fasteners.

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