CN112478737B

CN112478737B - Rotary discharging mechanism

Info

Publication number: CN112478737B
Application number: CN202011434127.6A
Authority: CN
Inventors: 杨利明
Original assignee: Shenzhen Shangming Precision Mould Co ltd
Current assignee: Sichuan Tongmiao Automation Equipment Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2022-08-16
Anticipated expiration: 2040-12-10
Also published as: CN112478737A

Abstract

The invention discloses a rotary blanking mechanism, which comprises: the blanking platform of transmission product, the blanking bench is equipped with many baffle boxes, the product slides along the baffle box, has the revolving stage of switching-over groove, the rotatable switching-over groove of revolving stage make its both ends all can with the export butt joint of baffle box, the stop device of switching-over groove both ends and baffle box export, stop device closes the both ends of switching-over groove and the export of baffle box when the switching-over groove needs to rotate. According to the invention, by arranging the rotating table and the limiting device, products with normal pin directions can be directly discharged, and products with wrong pin directions can be quickly changed over through the rotating table, so that the pin directions of the products are changed into correct discharging directions, and then discharging is continued. Through the cooperation of revolving stage and stop device, can automize and accomplish the ejection of compact of product and the conversion of product pin direction, improve discharging efficiency.

Description

Rotary discharging mechanism

Technical Field

The invention relates to the field of packaging and manufacturing, in particular to a rotary blanking mechanism.

Background

Packaging is a technique for packaging semiconductor integrated circuit chips with insulating plastic or ceramic materials, and packaging is essential and critical for the chips. Since the chip must be isolated from the outside to prevent the chip from being corroded by impurities in the air to cause electrical performance degradation, on the other hand, the packaged chip is more convenient to mount and transport.

At the end of the packaging equipment, the products on the lead frame are generally arranged symmetrically left and right adjacent two columns. For example, four rows of packaged products are arranged on an existing lead support, when blanking, a product in a single row and a product in an even row are in a symmetrical state, and pins of all products need to be arranged consistently in a packaging process, that is, the product in the even row can be directly blanked, and the product in the single row needs to be aligned in a single adjusting direction to enable a discharging direction to be consistent because the pins are reversed, so that the problem of low production efficiency is caused.

Disclosure of Invention

The invention provides a rotary blanking mechanism, aiming at solving the technical problem of low discharging efficiency caused by the fact that the arrangement directions of product pins are not opposite in the prior art.

The technical scheme adopted by the invention is as follows:

the invention provides a rotary blanking mechanism, which comprises: the blanking platform of transmission product, the blanking bench is equipped with many baffle boxes, the product slides along the baffle box, has the revolving stage of switching-over groove, the rotatable switching-over groove of revolving stage make its both ends all can with the export butt joint of baffle box, the stop device of switching-over groove both ends and baffle box export, stop device closes the both ends of switching-over groove and the export of baffle box when the switching-over groove needs to rotate.

The invention also includes: the discharging table is provided with a discharging groove, one end of the reversing groove is in butt joint with the guide chute after rotation, and the other end of the reversing groove is in butt joint with the discharging groove.

Furthermore, the blanking table, the rotating table and the discharging table are obliquely arranged, so that the product can slide along the guide chute, the reversing chute and the discharging chute.

In one embodiment, the blanking table is provided with four uniformly spaced and parallel guide chutes, the rotating table is provided with four uniformly spaced and parallel reversing chutes, and the four reversing chutes are divided into two non-adjacent straight chutes and two non-adjacent to-be-reversed chutes.

The discharge chutes of the discharge table are two, when the rotary table is located at an initial rotating position, the discharge chutes are in butt joint with the straight through grooves, and when the rotary table rotates 180 degrees, the discharge chutes are in butt joint with the straight through grooves.

The limiting device comprises a first limiting cylinder and a second limiting cylinder, wherein the first limiting cylinder is installed on the rotating table and close to the blanking table, the second limiting cylinder is installed on the rotating table and close to the discharging table, the third limiting cylinder is installed on the blanking table and is located at the outlet of the guide chute, four tight pushing pieces capable of being inserted into four reversing chutes through cylinder driving and limiting sliding of products are arranged on the first limiting cylinder and the second limiting cylinder respectively, and four tight pushing pieces capable of being inserted into the guide chutes through cylinder driving and limiting sliding of products are arranged on the third limiting cylinder.

And the second limiting cylinder is in a normally-ejecting state corresponding to the ejecting pieces of the two grooves to be reversed.

When the rotating platform rotates for 180 degrees, the first limiting air cylinder retracts corresponding to the two jacking pieces of the groove to be reversed, so that a product with the converted direction slides into the discharge chute from the groove to be reversed.

Furthermore, a blanking cover plate, a rotary cover plate and a discharging cover plate are respectively arranged on the blanking table, the rotary table and the discharging table, and the guide chute, the reversing chute and the discharging chute are positioned in the cover plates.

The blanking table, the rotating table and the discharging table are arranged on a supporting plate, and a supporting frame used for supporting the blanking table, the rotating table and the discharging table is arranged on the supporting plate.

Compared with the prior art, the invention has the advantages that the product with normal pin direction can be directly discharged by arranging the rotating table and the limiting device, the product with wrong pin direction can be quickly changed in direction by the rotating table, the pin direction of the product is changed into the correct discharging direction, and then the discharging is continued. Through the cooperation of revolving stage and stop device, can automize and accomplish the ejection of compact of product and the conversion of product pin direction, improve discharging efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a schematic perspective view of an installation cover plate according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.

As shown in fig. 1, the present invention provides a rotary blanking mechanism, comprising: blanking platform 1, revolving stage 2 and the ejection of compact platform 3 that set gradually, blanking platform 1, revolving stage 2 and ejection of compact platform 3 slope set up. The blanking table 1 is provided with a plurality of material guiding grooves 11 arranged along the inclined direction, so that the products can slide along the material guiding grooves 11 towards the inclined direction. The rotating table 2 is provided with a plurality of reversing slots 21, and when the rotating table 2 rotates, the reversing slots 21 are rotated 180 degrees around the reversing slots 21, so that both ends of the reversing slots 21 can be butted with the outlets of the guide chutes 11. After the product enters the reversing groove 21 from the material guide groove 11, the reversing groove 21 rotates 180 degrees, so that the direction of the product can be reversed, and the directions of the pins on the two sides of the product coming out from the reversing groove 21 are reversed to be the correct discharging direction. The limiting devices are located at the two ends of the reversing chute 21 and the outlet of each guide chute 11, and can respectively open and close the two ends of each reversing chute 21 and the outlet of each guide chute 11. When the reversing groove 21 needs to rotate, the limiting device closes the two ends of the reversing groove 21, so that the product is limited in the reversing groove 21 and cannot move, and the product is prevented from sliding out of the reversing groove 21 when the rotating platform 2 rotates. And meanwhile, the outlet of the material guide groove 11 is closed, so that the products are prevented from being continuously discharged when the rotating platform 2 rotates. Through the mode that sets up the revolving stage, make a plurality of products quick switching direction, convert the pin direction of product into correct ejection of compact direction, improve discharging efficiency.

The discharging table 3 is provided with a discharging chute 31, and both ends of the reversing chute 21 are respectively butted with the discharging chute 31 and the guide chute 21 before or after the reversing chute 21 rotates 180 degrees.

In this embodiment, the specific blanking process of the product is as follows: after falling into baffle box 11 of blanking platform 1, the product slides to switching-over groove 21 along baffle box 11 in, and stop device seals the both ends of switching-over groove 21, adjusts 180 degrees with the product through switching-over groove 21, and stop device opens the one end that is close to blown down tank 31 of switching-over groove 21 again, and perhaps both ends are all opened, and the product after making the adjusted direction slides to accomplish the ejection of compact process in the blown down tank 31 from switching-over groove 21.

In a specific embodiment, the lead frame corresponds to four rows of products, wherein the left and right pin directions of the first row and the third row of products of the lead frame are the correct discharging direction, and the left and right pin directions of the second row and the fourth row of products are required to be adjusted because the second row and the fourth row of products are symmetrical to the first row or the fourth row.

Four parallel guide chutes 11 are uniformly arranged on the blanking table 1 at intervals, and the packaged product on the lead wire support falls into the four guide chutes 11 of the blanking table 1 after cutting off pins. Four parallel reversing grooves 21 are provided at regular intervals on the turntable 2. For the convenience of distinction, among the four reversing slots, the first row and the third row of the reversing slot corresponding to the product are straight slots 211, and the second row and the fourth row of the reversing slot corresponding to the product are slots to be reversed 212. Because the placing directions of the product pins in the first row and the third row are correct directions, adjustment is not needed, and the placing directions of the product pins in the second row and the fourth row are wrong directions, 180-degree adjustment is needed for discharging. The number of the discharge chutes 31 of the discharge table 3 is two. Before the rotary table 2 rotates, i.e. when the rotary table is located at the initial rotation position, the two discharge chutes 31 are butted with the two through grooves 211. When the two ends of the straight through groove 211 and the outlet of the guide chute 11 are not closed by the limiting device, the rotating table does not rotate, and the placing directions of the product pins in the first row and the third row are correct, so that the product pins can directly slide to the discharge chute from the guide chute through the straight through groove to discharge materials, and the discharging efficiency is improved.

The limiting device comprises a first limiting cylinder 41 and a second limiting cylinder 42, wherein the first limiting cylinder 41 is installed on the rotating table and close to the blanking table, the second limiting cylinder 42 is installed on the discharging table and located at the outlet of the guide chute, and four jacking pieces which can be driven by cylinders and can be inserted into four reversing grooves to block products are arranged on the first limiting cylinder and the second limiting cylinder respectively. The third limiting cylinder 43 is provided with four jacking pieces which can be driven by the cylinder to be inserted into the four material guide grooves 11 to block products and prevent the products from sliding. Wherein, the top tightening pieces corresponding to the two grooves to be reversed on the second limiting cylinder 42 are in a normally-ejected state, i.e. the top tightening pieces are not retracted and always blocked at the end parts of the two grooves to be reversed, so as to prevent the product from being released.

The limiting device can further comprise a fourth limiting cylinder 44, the fourth limiting cylinder is installed on the discharging table and located at an outlet of the discharging groove, and the fourth limiting cylinder is used for opening and closing the outlet of the discharging groove and controlling discharging.

When the rotating platform 2 needs to rotate, the jacking pieces of the first, second and third limiting

air cylinders

41, 42 and 43 are all ejected out, and after the rotating platform 2 rotates 180 degrees, the first limiting air cylinder 41 is retracted corresponding to the two jacking pieces of the groove to be reversed, so that the product with the converted direction slides out of the groove 212 to be reversed to the discharge chute 31.

In the specific installation structure of the invention, the blanking table 1, the rotating table 2 and the discharging table 3 are installed on a supporting plate 5, a supporting frame is arranged on the supporting plate and is used for supporting the blanking table 1, the rotating table 2 and the discharging table 3, and a rotating shaft and a motor are arranged below the rotating table 2 and are used for driving the rotating table to rotate.

As shown in fig. 2, the blanking table 1 is provided with a blanking cover plate 61 to cover the material guiding chute and prevent the product from falling off from the material guiding chute. The rotary table 2 is provided with a rotary cover plate 62 for covering the reversing groove, and the discharge table 3 is provided with a discharge cover plate 63 for covering the discharge groove 31, so that the product can only slide along the inclined plane direction in the sliding process and cannot be separated from the sliding groove. First spacing cylinder 41 and second spacing cylinder 42 are installed on rotatory apron 62, are equipped with the preformed hole that corresponds the tight piece of top on the rotatory apron 62, make the tight piece of top can pass the preformed hole and insert the switching-over groove. The third limiting cylinder 43 is mounted on the blanking cover plate 61, and a preformed hole is also formed in the blanking cover plate, so that a puller of the third limiting cylinder can be inserted into the guide chute to control the sliding of the product.

The embodiment can further comprise a controller, wherein the controller controls the limiting device to limit and the rotating table to rotate, so that the whole process can automatically run.

The method specifically comprises the following steps: the controller sets the jacking pieces of the second limiting cylinder corresponding to the two grooves to be reversed to be in a normal ejection state, controls the jacking pieces of the first limiting cylinder, the second limiting cylinder and the third limiting cylinder to be ejected completely after a first preset time, and then controls the rotating table to rotate the reversing grooves by 180 degrees; controlling the first limiting cylinder to retract corresponding to the two tightening pieces of the groove to be reversed, so that the product slides to the discharge chute; after a second preset time, determining that the product in the groove to be reversed completely slides out, controlling the rotating table to rotate the reversing groove to an initial rotation position, controlling the puller members of the first limiting cylinder and the third limiting cylinder to withdraw, and controlling the puller member of the second limiting cylinder corresponding to the straight through groove to withdraw; and performing circular reversing discharging after the step of returning for the first preset time.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a rotatory unloading mechanism which characterized in that includes:

the blanking table is used for conveying products, a plurality of guide chutes are formed in the blanking table, and the products slide along the guide chutes;

the rotating platform is provided with a reversing groove, and the rotating platform can rotate the reversing groove to enable two ends of the reversing groove to be in butt joint with the outlet of the guide chute;

the limiting devices are used for opening and closing the two ends of the reversing chute and the outlet of the guide chute, and the limiting devices close the two ends of the reversing chute and the outlet of the guide chute when the reversing chute needs to rotate;

the discharging table is provided with a discharging groove, one end of the reversing groove is butted with the guide chute after the reversing groove rotates, and the other end of the reversing groove is butted with the discharging groove;

the blanking table is provided with four guide chutes which are uniformly spaced and parallel, the rotating table is provided with four reversing chutes which are uniformly spaced and parallel, and the four reversing chutes are divided into two non-adjacent straight chutes and two non-adjacent to-be-reversed chutes;

two discharge grooves of the discharge table are arranged, and when the rotary table is located at an initial rotation position, the two discharge grooves are in butt joint with the two straight-through grooves, so that products with normal pin directions can be directly discharged; products with wrong pin directions can be quickly changed over in direction through the rotary table, when the rotary table rotates 180 degrees, the two discharging grooves are in butt joint with the two grooves to be reversed, the pin directions of the products are changed into correct discharging directions, and discharging is continued;

the limiting device comprises a first limiting cylinder and a second limiting cylinder, wherein the first limiting cylinder is installed on the rotating table and close to the blanking table, the second limiting cylinder is close to the discharging table, the third limiting cylinder is installed on the blanking table and is positioned at the outlet of the guide chute, four jacking pieces which can be inserted into the four reversing chutes through cylinder driving to limit the sliding of products are respectively arranged on the first limiting cylinder and the second limiting cylinder, and four jacking pieces which can be inserted into the guide chutes through cylinder driving to limit the sliding of products are arranged on the third limiting cylinder;

the second limiting cylinder is in a normally-ejected state corresponding to the ejection pieces of the two grooves to be reversed;

when the rotating platform is to be rotated, the four jacking pieces of the first and second limiting cylinders are all ejected out, and after the rotating platform rotates by 180 degrees, the first limiting cylinder is retracted corresponding to the two jacking pieces of the groove to be reversed, so that the product with the converted direction slides into the discharge chute from the groove to be reversed.

2. The rotary blanking mechanism of claim 1 wherein the blanking table, the rotary table and the discharge table are inclined to allow the products to slide along the chute, the reversing chute and the discharge chute.

3. The rotary blanking mechanism of claim 1 wherein the blanking table, the rotary table and the discharging table are respectively provided with a blanking cover plate, a rotary cover plate and a discharging cover plate, and the guide chute, the reversing chute and the discharging chute are positioned in the cover plates.

4. The rotary blanking mechanism of claim 3 wherein the blanking table, the rotary table and the discharge table are mounted on a support plate, the support plate having a support frame for supporting the blanking table, the rotary table and the discharge table.