PCB processing energy-saving presser foot

Abstract

The utility model discloses a PCB processing energy-saving presser foot which comprises a presser foot body, a sealing ring and an air curtain plate, an annular groove is formed in the middle of the presser foot body, a dust suction pipe connector communicated with the annular groove is arranged on the side face of the presser foot body, and the sealing ring is arranged on the upper portion of the presser foot body and connected with the presser foot body in a sealed mode. A sealed annular air channel is formed between the presser foot body and the sealing ring, an air inlet communicated with the annular air channel is formed in the outer side of the presser foot body, a plurality of air channel through holes extending downwards are formed in the annular air channel, and the air curtain plate is arranged at the bottom of the presser foot body and connected with the presser foot body in a sealed mode. The air curtain plate or the presser foot body is provided with an air curtain generating assembly communicated with the air channel through hole, and a brush is arranged at the bottom of the air curtain plate. The situation that cold air in a workshop is exhausted out of the workshop along with a dust extraction system can be reduced to a certain extent, the power utilization cost of the workshop is saved, and the energy loss of the workshop is also saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of PCB processing, specifically related to a kind of PCB processing energy-saving presser foot. BACKGROUND

[0002] In the field of printed circuit board (PCB) processing, the energy consumption of PCB processing machine tool workshop, high electricity cost and other such problems, how to solve workshop energy consumption is the trend of future development of PCB processing machine tool.For example, the current printed circuit board (PCB) industry processing equipment needs to discharge the debris in the PCB processing machine tool processing process through the dust extraction system to the outside of workshop building, while discharging the debris through the dust extraction system, the press on the spindle of PCB processing machine tool continuously discharges the cold air of workshop to the outside of workshop building, causing cold air loss, workshop temperature rise, and the need to continuously increase the supply of cold air, causing workshop energy consumption and waste.In order to solve these problems, the current energy-saving presser foot scheme is designed.With the development of modern industrial society, the intelligent adjustment of energy consumption of equipment is endowed, and the energy-saving presser foot will be more and more concerned by equipment manufacturers and users. SUMMARY

[0003] The technical problem to be solved by the utility model is to solve the above-mentioned problems of the prior art, provide a natural gas light-heat cycle heating system and method, which can reduce the discharge of workshop cold air to the outside of workshop building to a certain extent, save the electricity cost of workshop, and save the energy consumption of workshop.

[0004] The technical scheme adopted by the utility model is: an energy-saving presser foot for PCB processing, comprising a presser foot body, a sealing ring and an air curtain plate, an annular groove is formed in the middle of the presser foot body, a dust extraction pipe joint communicating with the annular groove is arranged on the side surface of the presser foot body, the sealing ring is arranged on the upper part of the presser foot body and is sealingly connected with the presser foot body, a sealed annular air duct is formed between the presser foot body and the sealing ring, an air inlet communicating with the annular air duct is arranged on the outer side of the presser foot body, a plurality of air duct through holes extending downward are formed in the annular air duct, the air curtain plate is arranged on the bottom of the presser foot body and is sealingly connected with the presser foot body, an air curtain generating assembly communicating with the air duct through holes is arranged on the air curtain plate or the presser foot body, and a brush is arranged on the bottom of the air curtain plate.

[0005] In one embodiment, the air curtain generating assembly comprises a plurality of first air duct connecting holes formed in the air curtain plate and communicating with the air duct through holes, and a plurality of air flow guide grooves are formed in the bottom of the air curtain plate and inclined to the air curtain plate axis.

[0006] In one embodiment, the number of first air duct connecting holes is consistent with the number of air duct through holes, and each first air duct connecting hole communicates with each air duct through hole.

[0007] In one embodiment, each of the first air passage connecting holes is in communication with the air flow guide groove away from one end of the air passage through hole.

[0008] In one embodiment, the air curtain generating assembly comprises second air passage connecting holes, two ends of each of the second air passage connecting holes being in communication with the air passage through hole and the annular groove respectively.

[0009] In one embodiment, the number of the second air passage connecting holes is consistent with the number of the air passage through holes and each of the second air passage connecting holes is in communication with each of the air passage through holes.

[0010] In one embodiment, the annular groove of the presser body is provided with an air passage part I near the top, the bottom of the sealing ring is provided with an air passage part II matched with the air passage part I, and the air passage part I and the air passage part II are in sealing connection and form an annular air passage.

[0011] In one embodiment, the air inlet is provided with an air inlet connector.

[0012] In one embodiment, the bottom of the air curtain plate is provided with a mounting groove matched with the brush, the side of the mounting groove is provided with a pressing plate detachable with the air curtain plate, and when the pressing plate is connected with the air curtain plate, a clamping cavity for clamping the brush is formed between the mounting groove and the pressing plate.

[0013] The beneficial effects of the utility model lie in:

[0014] 1. The air inlet, the annular air passage, the air passage through hole and the air curtain generating assembly are in communication with each other, providing a circulation channel for the natural air of the workshop and the hot air generated by the operation of the machine tool, forming an air curtain, realizing the isolation of cold and hot air, and when the workshop dust collection system is turned on, only the hot air is sucked away, leaving the cold air, maintaining the constant cold air of the workshop, effectively saving the energy consumption of the workshop and saving the electricity cost.

[0015] 2. The air curtain generating assembly has two modes, which can be selected according to the actual situation to meet the needs under different situations. DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is an explosion diagram of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the presser body of the utility model;

[0019] Figure 4 It is a sectional view of embodiment 1;

[0020] Figure 5 It is a structural schematic diagram of the air curtain plate of embodiment 1;

[0021] Figure 6 The schematic view of the air flow guide groove of the air curtain plate of Example 1;

[0022] Figure 7 The sectional view of Example 2.

[0023] In the figure: 1, the presser body; 2, the sealing ring; 3, the air curtain plate; 4, the brush; 5, the annular air channel; 101, the annular groove; 102, the dust extraction pipe joint; 103, the air inlet; 104, the air channel through hole; 105, the second air channel connecting hole; 106, the air channel part one; 107, the air inlet joint; 201, the air channel part two; 301, the first air channel connecting hole; 302, the air flow guide groove; 303, the mounting groove; 304, the press plate; 305, the clamping cavity. DETAILED DESCRIPTION

[0024] The utility model will be combined with specific embodiments and the attached drawings to make further detailed description.

[0025] Example 1:

[0026] As Figures 1-6 shown, a PCB processing energy-saving presser includes a presser body 1, a sealing ring 2 and an air curtain plate 3, the presser body 1 middle part is opened with annular groove 101, the presser body 1 side is equipped with the dust extraction pipe joint 102 with annular groove 101 intercommunication, the sealing ring 2 is set on presser body 1 upper portion and is sealedly connected with presser body 1, the presser body 1 and sealing ring 2 between form sealed annular air channel 5, the presser body 1 outside is equipped with the air inlet 103 with annular air channel 5 intercommunication, a plurality of air channel through holes 104 extending downward are opened on annular air channel 5, the air curtain plate 3 is set on presser body 1 bottom and is sealedly connected with presser body 1, the air curtain plate 3 or presser body 1 is equipped with the air curtain generation subassembly with air channel through hole 104 intercommunication, the brush 4 is equipped on the air curtain plate 3 bottom.

[0027] In the embodiment, the air curtain generation subassembly includes a plurality of first air channel connecting holes 301 opened on the air curtain plate 3 and communicated with the air channel through holes 104, and a plurality of air flow guide grooves 302 are opened on the bottom of the air curtain plate 3 corresponding to the first air channel connecting holes 301 and are arranged obliquely to the axis direction of the air curtain plate 3.

[0028] In the embodiment, the number of the first air channel connecting holes 301 is consistent with the number of the air channel through holes 104, and each of the first air channel connecting holes 301 is communicated with each of the air channel through holes 104.

[0029] In the embodiment, each of the first air channel connecting holes 301 is communicated with the air flow guide groove 302 away from the air channel through hole 104.

[0030] In this embodiment, the air passage part one 106 is arranged in the annular groove 101 of the presser foot body 1 near the top, and the air passage part two 201 is arranged in the bottom of the sealing ring 2 and matched with the air passage part one 106. The air passage part one 106 and the air passage part two 201 are in sealing connection and form the annular air passage 5.

[0031] In this embodiment, the air inlet 103 is provided with the air inlet connector 107.

[0032] In this embodiment, the air curtain plate 3 is provided with the installation groove 303 matched with the brush 4 in the bottom, and the pressing plate 304 matched with the air curtain plate 3 is arranged on the side of the installation groove 303. When the pressing plate 304 is connected with the air curtain plate 3, the installation groove 303 and the pressing plate 304 form the clamping cavity 305 for clamping the brush 4.

[0033] In this embodiment, the presser foot is connected with the main shaft of the numerical control machine tool and moves with the main shaft. When connected, the main shaft is sequentially connected with the sealing ring 2 and the presser foot body 1, and connected with the whole presser foot. At the same time, the presser foot is connected with the workshop dust suction system through the dust suction pipe connector 102.

[0034] When the presser foot works, the natural air in the workshop and the hot air generated by the operation of the machine tool enter the air inlet 103 through the air inlet connector 107, and then enter the annular air passage 5 through the air inlet 103, forming the air flow. Then, the air flow enters each air passage through hole 104, enters the first air passage connecting hole 301 along the air passage through hole 104, and finally enters the air flow guide groove 302. The inner wall of the first air passage connecting hole 301 is a straight groove, and the air flow guide groove 302 is an inwardly inclined inclined groove. When the air flow enters the first air passage connecting hole 301 from the air passage hole 104, it is uniformly scattered downward by the outer ring wall of the inclined air flow guide groove 302, and the air flow around the air flow guide groove 302 forms an annular air curtain by adjusting the air pressure, which isolates the cold air around the brush 4 and surrounds the brush 4. When the machine tool works, the workshop dust suction system opens to suck the debris and gas at the bottom of the presser foot after machining, and under the action of suction, the air flow flowing out of the air flow guide groove 302 is sucked into the annular groove 101 through the brush 4, and finally is sucked away by the dust suction system.

[0035] Embodiment 2:

[0036] As Figure 1 , Figure 2 , Figure 3 and Figure 7As shown, a PCB processing energy-saving presser foot includes a presser foot body 1, a sealing ring 2 and an air curtain plate 3, the presser foot body 1 is provided with a ring-shaped groove 101 in the middle, the presser foot body 1 is provided with a dust extraction pipe joint 102 communicating with the ring-shaped groove 101 on the side, the sealing ring 2 is arranged on the upper part of the presser foot body 1 and is sealingly connected with the presser foot body 1, a sealed annular air channel 5 is formed between the presser foot body 1 and the sealing ring 2, the presser foot body 1 is provided with an air inlet 103 communicating with the annular air channel 5 on the outside, a plurality of air channel through holes 104 extending downward are formed on the annular air channel 5, the air curtain plate 3 is arranged on the bottom of the presser foot body 1 and is sealingly connected with the presser foot body 1, the air curtain plate 3 or the presser foot body 1 is provided with an air curtain generating assembly communicating with the air channel through holes 104, and the air curtain plate 3 is provided with a brush 4 on the bottom.

[0037] In the embodiment, the air curtain generating assembly includes a second air channel connecting hole 105, and the two ends of the second air channel connecting hole 105 respectively communicate with the air channel through hole 104 and the ring-shaped groove 101.

[0038] In the embodiment, the number of the second air channel connecting hole 105 is consistent with the number of the air channel through hole 104 and each of the second air channel connecting hole 105 communicates with each of the air channel through hole 104.

[0039] In the embodiment, the presser foot body 1 is provided with an air channel part one 106 near the top in the ring-shaped groove 101, the sealing ring 2 is provided with an air channel part two 201 matching the air channel part one 106 at the bottom, and the air channel part one 106 and the air channel part two 201 are sealingly connected and form the annular air channel 5.

[0040] In the embodiment, the air inlet 103 is provided with an air inlet joint 107.

[0041] In the embodiment, the air curtain plate 3 is provided with a mounting groove 303 matching the brush 4 at the bottom, the mounting groove 303 is provided with a pressing plate 304 detachably connected with the air curtain plate 3 on the side, and when the pressing plate 304 is connected with the air curtain plate 3, a clamping cavity 305 for clamping the brush 4 is formed between the mounting groove 303 and the pressing plate 304.

[0042] In the embodiment, the presser foot is connected with the main shaft of the numerical control machine tool and moves with the main shaft; when connected, the main shaft is sealingly connected with the sealing ring 2 and the presser foot body 1 in sequence, and the whole presser foot is connected. At the same time, the presser foot is connected with the workshop dust extraction system through the dust extraction pipe joint 102.

[0043] When the presser foot is working, the natural air in the workshop and the hot air generated by the operation of the machine tool enter the air inlet 103 through the air inlet joint 107, thereby entering the annular air channel 5 through the air inlet 103 to form an air flow. Subsequently, the air flow enters each air channel through-hole 104 respectively, enters the second air channel connecting hole 105 along the air channel through-hole 104, and finally enters the annular groove 101. By adjusting the air pressure, the air flow forms an annular air curtain in the annular groove 101 and the space above the brush 4, isolates the cold air around the brush 4, and surrounds the brush 4. When the machine tool is working, the workshop dust collection system can suck away the air flow flowing out of the air channel through-hole 104 together when the dust and gas at the bottom of the presser foot after the machine tool processing are opened.

[0044] The above-described embodiments only express the specific implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A PCB processing energy saving presser foot, characterized in that: The invention relates to a dustproof presser foot, which comprises a presser foot body (1), a sealing ring (2) and a curtain plate (3). The presser foot body (1) is provided with a ring-shaped groove (101) in the middle part, and a dust extraction pipe joint (102) is arranged on the side of the presser foot body (1) and communicates with the ring-shaped groove (101). The sealing ring (2) is arranged on the upper part of the presser foot body (1) and is sealingly connected with the presser foot body (1). The presser foot body (1) and the sealing ring (2) form a sealed ring-shaped air channel (5). An air inlet (103) is arranged on the outer side of the presser foot body (1) and communicates with the ring-shaped air channel (5). A plurality of air channel through holes (104) are arranged on the ring-shaped air channel (5) and extend downward. The curtain plate (3) is arranged on the bottom of the presser foot body (1) and is sealingly connected with the presser foot body (1). The curtain plate (3) or the presser foot body (1) is provided with a curtain generating assembly which communicates with the air channel through holes (104). A brush (4) is arranged on the bottom of the curtain plate (3).

2. The energy saving presser foot for PCB processing according to claim 1, characterized in that: The curtain generating assembly comprises a plurality of first air channel connecting holes (301) which are arranged on the curtain plate (3) and communicate with the air channel through holes (104). A plurality of air flow guide grooves (302) are arranged on the bottom of the curtain plate (3) and correspond to the first air channel connecting holes (301).

3. The energy saving presser foot for PCB processing according to claim 2, characterized in that: The number of the first air channel connecting holes (301) is consistent with the number of the air channel through holes (104), and each first air channel connecting hole (301) communicates with each air channel through hole (104).

4. The energy saving presser foot for PCB processing according to claim 3, characterized in that: The end of each first air channel connecting hole (301) away from the air channel through hole (104) communicates with the air flow guide groove (302).

5. The energy saving presser foot for PCB processing according to claim 1, characterized in that: The curtain generating assembly comprises a second air channel connecting hole (105), and the two ends of the second air channel connecting hole (105) respectively communicate with the air channel through hole (104) and the ring-shaped groove (101).

6. The energy saving presser foot for PCB processing according to claim 5, characterized in that: The number of the second air channel connecting hole (105) is consistent with the number of the air channel through hole (104), and each second air channel connecting hole (105) communicates with each air channel through hole (104).

7. The energy-saving presser foot for PCB processing according to claim 4 or 6, characterized in that: A first air channel part (106) is arranged in the ring-shaped groove (101) of the presser foot body (1) and close to the top. A second air channel part (201) is arranged on the bottom of the sealing ring (2) and matches the first air channel part (106). The first air channel part (106) and the second air channel part (201) are sealingly connected and form the ring-shaped air channel (5).

8. The energy saving presser foot for PCB processing according to claim 7, characterized in that: An air inlet joint (107) is arranged on the air inlet (103).

9. The energy saving presser foot for PCB processing according to claim 8, characterized in that: An installation groove (303) is arranged on the bottom of the curtain plate (3) and matches the brush (4). A pressing plate (304) is arranged on the side of the installation groove (303) and is detachable from the curtain plate (3). When the pressing plate (304) is connected with the curtain plate (3), a clamping cavity (305) for clamping the brush (4) is formed between the installation groove (303) and the pressing plate (304).

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