CN211240357U

CN211240357U - Hot pressing head and floating type hot pressing device comprising same

Info

Publication number: CN211240357U
Application number: CN201921990008.1U
Authority: CN
Inventors: 肖玉龙; 陈文艺; 赵平林
Original assignee: Shenzhen Zhouming Technology Co Ltd
Current assignee: Shenzhen Zhouming Technology Co Ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-08-11
Anticipated expiration: 2029-11-18

Abstract

The utility model discloses a hot pressing head and floating hot press unit including this hot pressing head belongs to hot press unit technical field. The hot pressing head comprises a fixed seat, a spring and a lower pressing head, wherein one end of the lower pressing head is inserted into the fixed seat, the other end of the lower pressing head is positioned outside the fixed seat, the lower pressing head can move relative to the fixed seat, the lower pressing head is provided with a through hole which is used for the copper core to pass through, the spring is positioned in the fixed seat, the spring is positioned between the fixed seat and the lower pressing head, and when the lower pressing head moves towards the fixed seat, the spring generates elastic deformation; this floating hot press unit includes the driving source, holds box and base, the lower surface that holds the box is equipped with a plurality of the hot pressing head, a plurality of hot pressing head and the mica electrical heating core and the copper core one-to-one of a plurality of groups. The utility model provides a floating hot press unit and hot pressing head make its soldering tin melt when heating paster hardware, and the pressure of lower pressure head makes the paster hardware hug closely the PCB board, can satisfy the requirement of most high accuracy.

Description

Hot pressing head and floating type hot pressing device comprising same

Technical Field

The utility model relates to a hot press unit technical field, more specifically say, it relates to hot pressing head and floating hot press unit including this hot pressing head.

Background

At present, after mounting hardware (such as copper pillars, iron pieces, and magnets) on a PCB via SMT (surface mount Technology), the mounted hardware is soldered on the PCB by reflow soldering. The welding thickness of the surface mount hardware is controlled by parameters such as solder paste thickness and furnace temperature, so that the height consistency of the surface mount hardware is poor, and the deviation is 0.2-0.4 mm. When some products with high precision requirements are processed, the current processes and equipment often cannot meet the precision requirements

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hot pressing head and floating hot press unit including this hot pressing head, solve when processing some high accuracy requirement's product, current situation technology and equipment often can not reach the required technical problem of precision.

The above technical purpose of the present invention can be achieved by the following technical solutions:

according to the utility model discloses an aspect provides a hot pressing head, including fixing base, spring and lower pressure head, the fixing base is used for the installation fixed, the one end of pressure head is inserted down in the fixing base, the other end is located outside the fixing base, just the pressure head is relative down the fixing base removes, the pressure head is offered the through-hole that is used for the copper core to pass that runs through down, the spring is located in the fixing base, just the spring is located the fixing base with down between the pressure head, the pressure head down to when removing in the fixing base, the spring produces elastic deformation.

As a further optimization, a pressure sensor is arranged on the lower pressure head.

As a further optimization, a distance sensor is arranged on the lower pressure head.

According to the utility model discloses a another aspect provides a floating hot press unit, include the driving source, hold box and base, the base is used for bearing the product of treating processing, it is located to hold the box the top of base, the driving source is used for the drive it is close to and keeps away from to hold the box the base removes, it is equipped with mica electrical heating core and the copper core of a plurality of groups to hold the box, mica electrical heating core is used for doing the copper core heating, the lower surface that holds the box is equipped with a plurality of like aforementioned hot pressing head, a plurality of hot pressing head and a plurality of group mica electrical heating core and copper core one-to-one, the fixing base installation is fixed hold the lower surface of box, the lower extreme of copper core inserts the lower pressure head the through-hole, just the lower extreme of copper core can be followed the through-hole extremely outside the lower pressure head.

As a further optimization, the mica electric heating device further comprises a plurality of heating pipe sleeves, wherein the plurality of heating pipe sleeves correspond to the mica electric heating cores and the copper cores in a one-to-one manner, the mica electric heating cores are sleeved outside the copper cores, the heating pipe sleeves are sleeved outside the mica electric heating cores, and the copper cores penetrate through the mica electric heating cores and the heating pipe sleeves.

As further optimization, hold the box and include protecting sheathing and holding down plate, the holding down plate is installed protecting sheathing's lower extreme, be equipped with the radiation shield casing on the holding down plate, the copper core passes the radiation shield casing.

As further optimization, still include the cylinder fixed plate, the cylinder fixed plate is located hold the top of box, the cylinder is installed the upper end of cylinder fixed plate, the cylinder fixed plate with be equipped with the guide rail between the base, the guide rail passes the holding down plate.

As further optimization, the supporting plate is placed on the base, and the product accommodating groove is formed in the supporting plate.

As a further optimization, a placing area is arranged on the base, the placing area has limiting and positioning functions, and the supporting plate is placed in the placing area.

As a further optimization, the supporting plate is provided with a lifting opening.

To sum up, the utility model discloses following beneficial effect has: the utility model provides a floating hot press unit and hot pressing head, because the setting of spring, the elasticity of spring makes lower pressure head exert certain pressure to the paster hardware better, makes its soldering tin melt when heating the paster hardware, and the pressure of lower pressure head makes the paster hardware hug closely the PCB board to make the high uniformity deviation of paster hardware steerable in 0.05mm, can satisfy the requirement of most high accuracy.

Drawings

FIG. 1 is a schematic structural diagram of a floating hot pressing device in an embodiment;

FIG. 2 is a schematic diagram of a partially exploded structure of the floating hot pressing apparatus in an embodiment;

FIG. 3 is an exploded view of the container of the floating type thermo-compression apparatus in the embodiment;

fig. 4 is a sectional structure diagram of the hot pressing head of the floating type hot pressing device in the embodiment.

In the figure: 1. a cylinder; 2. accommodating the box; 21. a protective housing; 22. a lower pressing plate; 221. a heat insulating sleeve; 3. a base; 31. a placement area; 4. a mica electrical heating core; 5. a copper core; 6. a hot-pressing head; 61. a fixed seat; 62. a spring; 63. a lower pressure head; 631. a through hole; 7. a cylinder fixing plate; 8. heating the sleeve; 9. a guide rail; 100. a support plate; 110. product accommodating grooves; 120. and lifting the opening.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and 2, a floating type hot press device in this embodiment includes a cylinder 1, a housing box 2, and a base 3, the housing box 2 is located above the base 3, the cylinder 1 is located above the housing box 2, the base 3 is used for carrying a product for substitute processing, and the cylinder 1 is used as a driving source for driving the housing box 2 to move closer to and away from the base 3. Referring to fig. 3, the accommodating box 2 is provided with a plurality of groups of mica electric heating cores 4 and copper cores 5, and the mica electric heating cores 4 are electrified to heat the copper cores 5. The lower surface of the accommodating box 2 is provided with a plurality of hot pressing heads 6, and the plurality of hot pressing heads 6 correspond to the mica electric heating cores 4 and the copper cores 5 of the plurality of groups one by one. As shown in fig. 4, the thermal compression head 6 includes a fixing base 61, a spring 62 and a pressing head 63, and the fixing base 61 is fixedly mounted on the lower surface of the accommodating box 2. One end of the lower pressing head 63 is inserted into the fixing base 61, the other end is located outside the fixing base 61, and the lower pressing head 63 can move up and down relative to the fixing base 61. The spring 62 is located in the fixing base 61 and located between the fixing base 61 and the lower pressing head 63, and when the lower pressing head 63 moves upwards towards the fixing base 61, the spring 62 generates elastic deformation. The lower ram 63 is provided with a through hole 631 extending therethrough, the lower end of the copper core 5 is inserted into the through hole 631, and the lower end of the copper core 5 is allowed to pass from the through hole 631 to the outside of the lower ram 63.

When the floating type hot pressing device in the embodiment is used, a product to be processed, namely a PCB (printed circuit board) after being pasted is placed on the base 3, after the power is on, the mica electric heating core 4 heats the copper core 5, after the air cylinder 1 is started, the telescopic rod of the air cylinder 1 drives the accommodating box 2 to move close to the product to the lower pressing head 63 to press on the hardware and continue to move until the copper core 5 contacts with the hardware, in the process, the lower pressing head 63 is pressed to move upwards, the spring 62 generates elastic deformation, the air cylinder 1 stops, the copper core 5 heats the hardware, so that soldering tin between the pasted hardware and the PCB is melted, the elastic force generated by the elastic deformation of the spring 62 pushes the lower pressing head 63, the pasted hardware is tightly pressed on the PCB under the pressure of the lower pressure, after a certain time, the air cylinder 1 retracts, the copper core 5 is separated from the hardware, the heating is stopped, the lower pressing head 63 still presses the pasted hardware, the air cylinder 1 can stop for 3-5 seconds to wait for the tin to, the cylinder 1 is lifted up again to be restored to the original position. Floating hot press unit in this embodiment, because spring 62's setting, spring 62's elasticity makes pressure head 63 exert certain pressure to the paster hardware better down, makes its soldering tin melt when heating the paster hardware, and the pressure of pressure head 63 makes the paster hardware hug closely the PCB board down to make the high uniformity deviation of paster hardware steerable in 0.05mm, can satisfy most high accuracy requirements.

As an optimization, in order to more accurately control the height consistency of the chip hardware, a pressure sensor (not shown in the figure) may be disposed on the lower pressing head 63, specifically, the pressure sensor detects pressure, after the acting force of the lower pressing head 63 reaches a preset pressure value, the lower pressing head 63 stops pressing, and the height consistency of the chip hardware is controlled by controlling the pressure of the lower pressing head 63; or a distance sensor (not shown) is arranged on the lower pressure head 63, and the distance between the lower pressure and the PCB is detected through the distance sensor, so that the height and the height consistency of the chip hardware are more finely controlled.

As shown in fig. 2, the floating hot press device in this embodiment further includes a cylinder fixing plate 7, the cylinder fixing plate 7 is located above the accommodating box 2 and is relatively fixed in position, the cylinder 1 is installed on the upper end surface of the cylinder fixing plate 7, and the telescopic rod of the cylinder 1 penetrates through the cylinder 1 fixing plate and is installed and fixed on the accommodating box 2. As shown in fig. 3, the accommodation box 2 includes a protective case 21 and a lower pressing plate 22, and the lower pressing plate 22 is mounted at a lower end of the protective case 21. The floating hot-pressing device in the embodiment further comprises a plurality of heating sleeves 8 which are in one-to-one correspondence with the mica electric heating cores 4 and the copper cores 5, the mica electric heating cores 4 are sleeved outside the copper cores 5, the heating sleeves 8 are sleeved outside the mica electric heating cores 4, and the lower ends of the copper cores 5 penetrate through the mica electric heating cores 4 and the heating sleeves 8. The lower press plate 22 is provided with an insulating sleeve 221, and the heating sleeve 8 penetrates through the insulating sleeve 221. Four angles between the cylinder fixing plate 7 and the base 3 are provided with guide rails 9, the guide rails 9 penetrate through the lower pressing plate 22, and the lower pressing plate 22 is limited and guided by the guide rails 9 when moving up and down. The base 3 is provided with a placing area 31, and the placing area 31 has limiting and positioning functions. The placing area 31 is provided with a supporting plate 100, the supporting plate 100 is provided with a product accommodating groove 110, and a product to be processed is placed in the product accommodating groove 110. The supporting plate 100 is further provided with a lifting opening 120, and the lifting opening 120 is used for facilitating the taking and placing of the supporting plate 100.

The above embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications to the above embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws within the scope of the present invention.

Claims

1. A hot pressing head is characterized in that: including fixing base, spring and lower pressure head, the fixing base is used for the installation fixed, the one end of pressure head inserts down in the fixing base, the other end is located outside the fixing base, just the pressure head can be relative down the fixing base removes, the pressure head is seted up down and is used for the through-hole that the copper core passed that runs through, the spring is located in the fixing base, just the spring is located the fixing base with down between the pressure head, the pressure head down to when removing in the fixing base, the spring produces elastic deformation.

2. The thermal head according to claim 1, characterized in that: and a pressure sensor is arranged on the lower pressure head.

3. The thermal head according to claim 1, characterized in that: and a distance sensor is arranged on the lower pressure head.

4. A floating hot press unit which characterized in that: the mica electric heating device comprises a driving source, an accommodating box and a base, wherein the base is used for bearing a product to be processed, the accommodating box is positioned above the base, the driving source is used for driving the accommodating box to be close to and far away from the base to move, the accommodating box is provided with a plurality of groups of mica electric heating cores and copper cores, the mica electric heating cores are used for heating the copper cores, the lower surface of the accommodating box is provided with a plurality of hot pressing heads according to any one of claims 1-3, the hot pressing heads correspond to the mica electric heating cores and the copper cores in a one-to-one mode, the fixing base is fixedly installed on the lower surface of the accommodating box, the lower end of the copper core is inserted into the through hole of the lower pressing head, and the lower end of the copper core can be driven to move from the through hole to the outside of.

5. A floating hot pressing device as claimed in claim 4, characterized in that: still include a plurality of heating sleeve, it is a plurality of heating sleeve and a plurality of group mica electrical heating core with copper core one-to-one, mica electrical heating core cover is established outside the copper core, the heating sleeve cover is established outside the mica electrical heating core, the copper core passes mica electrical heating core with heating sleeve.

6. A floating hot pressing device as claimed in claim 4, characterized in that: the containing box comprises a protective shell and a lower pressing plate, the lower pressing plate is installed at the lower end of the protective shell, a heat insulation sleeve is arranged on the lower pressing plate, and the copper core penetrates through the heat insulation sleeve.

7. A floating hot pressing device as claimed in claim 6, characterized in that: the cylinder fixing plate is located above the containing box, the cylinder is installed at the upper end of the cylinder fixing plate, a guide rail is arranged between the cylinder fixing plate and the base, and the guide rail penetrates through the lower pressing plate.

8. A floating hot pressing device as claimed in claim 4, characterized in that: the base is provided with a supporting plate, and the supporting plate is provided with a product accommodating groove.

9. A floating hot pressing device as claimed in claim 8, characterized in that: the base is provided with a placing area, the placing area has limiting and positioning functions, and the supporting plate is placed in the placing area.

10. A floating hot pressing device as claimed in claim 8, characterized in that: the supporting plate is provided with a lifting opening.