Material taking device and feeding equipment

Abstract

The present invention discloses a material taking device and a feeding equipment. The material taking device includes: a housing assembly with a first channel therein; a first piston assembly capable of making linear reciprocating motion in the first channel, and the first piston assembly has a second channel therein; a second piston assembly capable of making linear reciprocating motion in the first channel and the second channel; a material taking assembly cooperatively installed with the first piston assembly and the second piston assembly. The material taking assembly makes linear reciprocating motion driven by the first piston assembly, and the material taking assembly takes or discharges materials driven by the second piston assembly. In the material taking device of the present invention, the integrated setting of the housing assembly, the first piston assembly, the second piston assembly and the material taking assembly greatly reduces the volume of the whole mechanism. At the same time, the precision of the whole mechanism can be effectively controlled during production, making the precision of the whole mechanism higher and easier to assemble.

Description

Technical Field

[0001] The present invention relates to a fixture, and particularly to a material taking device and a feeding device. Background Art

[0002] Keycaps and scissor feet are important components of a keyboard. When assembling keycaps and scissor feet, it is necessary to pick and place the keycaps and scissor feet. In the prior art, the picking and placing of keycaps and scissor feet generally use a material taking device for material taking, and multiple cylinders and fixtures are combined and assembled to complete actions such as lifting and clamping. It is easy to generate precision errors between the cylinders, which is not conducive to assembly and debugging.

[0003] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide a material taking device and a feeding device, which can prevent assembly problems caused by precision errors.

[0005] To achieve the above purpose, the present invention provides a material taking device, including a housing assembly, a first piston assembly, a second piston assembly, and a material taking assembly.

[0006] A first channel is provided in the housing assembly.

[0007] The first piston assembly can perform linear reciprocating motion in the first channel, and a second channel is provided in the first piston assembly.

[0008] The second piston assembly can perform linear reciprocating motion in the first channel and the second channel.

[0009] The material taking assembly is cooperatively installed with the first piston assembly and the second piston assembly. The material taking assembly performs linear reciprocating motion driven by the first piston assembly, and the material taking assembly picks or places materials driven by the second piston assembly.

[0010] In one or more embodiments, the first piston assembly and the housing assembly cooperate to form a sealed first chamber and a second chamber. By controlling the air pressure difference between the first chamber and the second chamber, the first piston assembly is driven to perform linear reciprocating motion.

[0011] In one or more embodiments, the first piston assembly and the housing assembly cooperate to form a sealed third chamber. The material taking device changes the driving force received by the first piston assembly in its axial direction by controlling the pressure of the third chamber.

[0012] In one or more embodiments, the second piston assembly, in cooperation with the first piston assembly, the housing assembly, and the material taking assembly, forms a sealed fourth chamber and a fifth chamber. By controlling the air pressure difference between the fourth chamber and the fifth chamber, the second piston assembly is driven to perform a linear reciprocating motion.

[0013] In one or more embodiments, the first piston assembly includes a bushing and a first piston disposed on the bushing for separating the first chamber and the second chamber.

[0014] In one or more embodiments, the second piston assembly includes a shaft body installed in the bushing and a second piston disposed on the shaft body for separating the fourth chamber and the fifth chamber.

[0015] In one or more embodiments, the material taking assembly includes a base cooperatively installed with the bushing, a first clamping jaw and a second clamping jaw installed on the base. The first clamping jaw and the second clamping jaw are simultaneously cooperatively installed with the shaft body. The linear reciprocating motion of the bushing drives the linear reciprocating motion of the material taking assembly, and the linear reciprocating motion of the shaft body drives the opening and closing of the first clamping jaw and the second clamping jaw.

[0016] In one or more embodiments, a first guiding groove is provided on the first clamping jaw, and a second guiding groove is provided on the second clamping jaw. There is an included angle between the guiding directions of the first guiding groove and the second guiding groove. A third connecting shaft installed in the first guiding groove and the second guiding groove is provided on the shaft body. The shaft body changes the included angle between the guiding directions of the first guiding groove and the second guiding groove through the linear reciprocating motion of the third connecting shaft, thereby controlling the opening and closing of the first clamping jaw and the second clamping jaw.

[0017] In another aspect of the present invention, a material taking device is provided, including: a housing assembly having a first channel therein;

[0018] A first piston assembly capable of performing a linear reciprocating motion in the first channel, and having a second channel therein;

[0019] A second piston assembly capable of performing a linear reciprocating motion in the first channel and the second channel; and

[0020] A material taking assembly cooperatively installed with the second piston assembly. The material taking assembly performs a linear reciprocating motion driven by the second piston assembly, and the material taking assembly is used for taking or discharging materials.

[0021] In another aspect of the present invention, a feeding device is further provided, including the above-mentioned material taking device.

[0022] Compared with the prior art, for the material taking device according to the present invention, the integrated setting of the housing assembly, the first piston assembly, the second piston assembly and the material taking assembly greatly reduces the volume of the whole mechanism. At the same time, the precision of the whole mechanism can be effectively controlled during production, making the precision of the whole mechanism higher and easier to assemble. Brief Description of the Drawings

[0023] Figure 1 is an exploded structural schematic diagram of a material taking device according to an embodiment of the present invention.

[0024] Figure 2 is a structural schematic diagram of a material taking device according to an embodiment of the present invention.

[0025] Figure 3 is a sectional schematic diagram of a housing assembly according to an embodiment of the present invention.

[0026] Figure 4 is a sectional schematic diagram of a first piston assembly according to an embodiment of the present invention.

[0027] Figure 5 is a sectional schematic diagram of a second piston assembly according to an embodiment of the present invention.

[0028] Figure 6 is a sectional schematic diagram after the housing assembly and the first piston assembly are cooperatively installed according to an embodiment of the present invention.

[0029] Figure 7 is a sectional schematic diagram after the housing assembly, the first piston assembly and the second piston assembly are cooperatively installed according to an embodiment of the present invention.

[0030] Figure 8 is a sectional schematic diagram of a material taking device according to an embodiment of the present invention.

[0031] Figure 9 is a partial structural schematic diagram of the cooperation between a material taking assembly and a shaft body according to an embodiment of the present invention.

[0032] Figure 10 is a structural schematic diagram of a material taking assembly according to an embodiment of the present invention.

[0033] Figure 11 is a planar schematic diagram of a first jaw and a second jaw according to an embodiment of the present invention. Detailed Embodiments

[0034] The following will describe in detail the specific embodiments of the present invention with reference to the drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0035] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0036] like Figure 1 Combined with Figure 2 , Figure 3 and Figure 4 As shown, a material taking device according to one embodiment of the present invention includes a housing assembly 100, a first piston assembly 200, a second piston assembly 300 and a material taking assembly 400. The housing assembly 100 has a first channel 110. The first piston assembly 200 has a second channel 210. The material taking assembly 400 is installed in cooperation with the first piston assembly 200 and the second piston assembly 300. The first piston assembly 200 can perform linear reciprocating motion in the first channel 110, and the second piston assembly 300 can perform linear reciprocating motion in the second channel 210 and the first channel 110. The material taking assembly 400 performs linear reciprocating motion driven by the first piston assembly 200, and the material taking assembly 400 performs material taking or unloading driven by the second piston assembly 300.

[0037] In this embodiment, a transmission wheel can be installed on the shell assembly 100 and connected to a driving device such as a motor through a transmission belt, so that the shell assembly 100 is driven to rotate by the motor and then the entire material picking device is driven to rotate.

[0038] like Figure 3 As shown, the shell assembly 100 includes an end cover 101, a first sleeve 102 and a second sleeve 103 fixedly mounted to each other. The first sleeve 102 and the second sleeve 103 are fixedly mounted to each other. The end cover 101 is fixed to the end of the first sleeve 102. The first sleeve 102 has a first accommodating chamber 1021 that passes through the first sleeve 102. The second sleeve 103 has a second accommodating chamber 1031 and a third accommodating chamber 1032 that are interconnected and pass through the second sleeve 103. The first accommodating chamber 1021, the second accommodating chamber 1031 and the third accommodating chamber 1032 are arranged in sequence and form a first channel 110. The first accommodating chamber 1021, the second accommodating chamber 1031 and the third accommodating chamber 1032 are all cylindrical.

[0039] like Figure 4 and Figure 3 , Figure 6 , Figure 8 As shown, the first piston assembly 200 includes a sleeve 201 and a first piston 202 disposed on the sleeve 201 for separating and forming a first chamber 10211 and a second chamber 10211 .

[0040] Specifically, the bushing 201 includes a connected first straight cylinder portion 2011 and a second straight cylinder portion 2012. The second straight cylinder portion 2012 is fitted and installed with the material taking assembly 400. The outer diameter of the second straight cylinder portion 2012 is larger than that of the first straight cylinder portion 2011. A fourth accommodation cavity 20111 is provided inside the first straight cylinder portion 2011, and a fifth accommodation cavity 20121 communicating with the fourth accommodation cavity 20111 is provided inside the second straight cylinder portion 2012. The diameter of the fourth accommodation cavity 20111 is smaller than that of the fifth accommodation cavity 20121. The second straight cylinder portion 2012 is located inside the third accommodation cavity 1032 and can move inside the third accommodation cavity 1032. The diameter of the second accommodation cavity 1031 is smaller than that of the third accommodation cavity 1032, thereby limiting the second straight cylinder portion 2012. The fourth accommodation cavity 20111 and the fifth accommodation cavity 20121 form a second channel 210.

[0041] The first piston 202 is located inside the first accommodation cavity 1021. The first piston 202 is fixed on the first straight cylinder portion 2011. Of course, the first piston 202 and the first straight cylinder portion 2011 can also be integrally formed. By the movement of the first piston 202 and the first straight cylinder portion 2011 inside the first accommodation cavity 1021, the second straight cylinder portion 2012 located inside the third accommodation cavity 1032 can move out of the second sleeve 103.

[0042] In addition, an annular protrusion 1022 is fixed on the inner wall of the first accommodation cavity 1021. The annular protrusion 1022 is part of the housing assembly. The annular protrusion 1022 is arranged away from the end cover 101. The annular protrusion 1022 can simultaneously limit the movement of the bushing 201. The first accommodation cavity 1021 is separated into a first chamber 10211 and a second chamber 10212 by the cooperation of the first piston 202, the end cover 101, and the annular protrusion 1022.

[0043] As Figure 5 and Figure 6 、 Figure 7 、 Figure 8 shown, the second piston assembly 300 includes a shaft body 301 installed inside the bushing 201 and a second piston 302 provided on the shaft body 301 for separating and forming a fourth chamber 20131 and a fifth chamber 20132.

[0044] Specifically, the shaft body 301 is in the shape of a long strip column. One end of the shaft body 301 passes through the second channel 210 and the first channel 110 and penetrates through the end cover 101, and the other end passes through the second channel 210 and can extend out of the second sleeve 103 and extend into the material taking assembly 400.

[0045] The second piston 302 is located on the shaft body 301 within the fifth accommodation chamber 20121. The second piston 302 is integrally provided with or detachably mounted on the shaft body 301. The second piston 302 is within the fifth accommodation chamber 20121, thereby dividing the second channel 210 into a fourth chamber 20131 and a fifth chamber 20132. The movement of the shaft body 301 drives the second piston 302 to move within the fifth accommodation chamber 20121. Since the diameter of the second piston 302 is greater than that of the fourth accommodation chamber 20111, the second piston 302 is limited by the diameter difference between the fourth accommodation chamber 20111 and the fifth accommodation chamber 20121.

[0046] As Figure 8 and Figure 6 shown, the first piston assembly 200 and the housing assembly 100 cooperate to form a sealed first chamber 10211 and a second chamber 10212. The material taking device drives the first piston assembly 200 to perform a linear reciprocating motion by controlling the air pressure difference between the first chamber 10211 and the second chamber 10211.

[0047] In one embodiment, air can be inflated into the first chamber 10211 or the second chamber 10212, while the corresponding second chamber 10212 or the first chamber 10211 discharges air outward, so as to control the air pressure difference between the first chamber and the second chamber, thereby pushing the first piston assembly 200 to perform a linear reciprocating motion. Of course, in some alternative embodiments, only one of the first chamber and the second chamber can be inflated and deflated to similarly control the air pressure difference between the first chamber and the second chamber.

[0048] Specifically, a first sealing ring 10 is provided between the shaft body 301 and the end cover 101. The end cover 101 is provided with a first annular groove for accommodating the first sealing ring 10. A second sealing ring 20 is provided between the annular protrusion 1022 and the first straight cylinder part 2011. The annular protrusion 1022 is provided with a second annular groove for accommodating the second sealing ring 20. A third sealing ring 30 is provided between the first piston 202 and the inner wall of the first accommodation chamber 1021. The first piston 202 is provided with a third annular groove for accommodating the third sealing ring 30. Through the settings of the first sealing ring 10, the second sealing ring 20, and the third sealing ring 30, the first chamber 10211 and the second chamber 10212 are made airtight.

[0049] In addition, a first ventilation hole 102111 is provided on the side wall of the first chamber 10211, and a second ventilation hole 102121 is provided on the side wall of the second chamber 10212. Both the first ventilation hole 102111 and the second ventilation hole 102121 are connected to an external air source. When inflating the first chamber 10211 through the first ventilation hole 102111 and exhausting air from the second chamber 10212 through the second ventilation hole 102121, the first piston 202 is pushed downward, thereby pushing the bushing 201 downward. When inflating the second chamber 10212 through the second ventilation hole 102121 and exhausting air from the first chamber 10211 through the first ventilation hole 102111, the first piston 202 is pushed upward, thereby pushing the bushing 201 upward.

[0050] As Figure 8 shown, the first piston assembly 200 and the housing assembly cooperate to form a sealed third chamber 10213, and the material taking device changes the driving force received by the first piston assembly 200 in its axial direction by controlling the pressure of the third chamber 10213.

[0051] Specifically, a fourth sealing ring 40 is provided between the side wall of the second straight cylinder part 2012 and the side wall of the third accommodation chamber 1032. A fourth annular groove for accommodating the fourth sealing ring 40 is provided at the end of the second straight cylinder part 2012 close to the second accommodation chamber 1031. The annular protrusion 1022, the first sleeve 102, the first straight cylinder part 2011, the second sleeve 103, and the second straight cylinder part 2012 enclose to form the third chamber 10213.

[0052] A third ventilation hole 102131 communicating with the third chamber 10213 is provided on the side wall of the first sleeve 102. The third ventilation hole 102131 is connected to an external air source. When inflating the third chamber 10213 through the third ventilation hole 102131, the second straight cylinder part 2012 can be pushed downward, thereby pushing the bushing 201 downward. Then, in cooperation with inflating the first chamber 10211, the first piston 202 and the bushing 201 can be accelerated to move downward.

[0053] As Figure 8 shown, the second piston assembly 300 and the first piston assembly 200, the housing assembly 100, and the material taking assembly 400 cooperate to form a sealed fourth chamber 20131 and a fifth chamber 20132. The material taking device drives the second piston assembly to perform a linear reciprocating motion by controlling the air pressure difference between the fourth chamber 20131 and the fifth chamber 20132, that is, when inflating the fourth chamber 20131 or the fifth chamber 20132 and exhausting air from the corresponding fifth chamber 20132 or the fourth chamber 20131 at the same time, the second piston assembly 300 can be pushed to perform a linear reciprocating motion. In this embodiment, the fourth chamber 20131 communicates with the first chamber 10211.

[0054] Specifically, a fifth sealing ring 50 is provided between the second piston 302 and the side wall of the fifth accommodation cavity 20121. A fifth annular groove for accommodating the fifth sealing ring 50 is formed on the second piston 302. A sixth sealing ring 60 is provided between the material taking assembly 400 and the shaft body 301. The sealing of the fourth cavity 20131 and the fifth cavity 20132 is achieved through the fifth sealing ring 50 and the sixth sealing ring 60 in combination with the sealed first chamber 10211.

[0055] In addition, an air passage 3011 is formed in the shaft body 301. One end of the air passage 3011 communicates with the inside of the fifth cavity 20132, and the other end penetrates through the end of the shaft body 301 of the end cover 101 and is connected to an external air source. When the first chamber 10211 is inflated and the fifth cavity 20132 discharges air through the air passage 3011, the air flow in the first chamber 10211 will flow to the fourth cavity 20131, thereby pushing the second piston 302 and the shaft body 301 downward. When the first chamber 10211 discharges air and the fifth cavity 20132 is inflated through the air passage 3011, the second piston 302 and the shaft body 301 are pushed upward.

[0056] As Figure 10 and Figure 8 、 Figure 9 、 Figure 11 As shown, the material taking assembly 400 includes a base 401 fitted and installed with a bushing 201, a first jaw 402 and a second jaw 403 installed on the base 401. The base 401 is fixedly installed with the second straight cylinder part 2012. The shaft body 301 extends into the base 401 and is simultaneously fitted and installed with the first jaw 402 and the second jaw 403. A sealing is provided between the shaft body 301 and the base 401. The linear reciprocating motion of the bushing 201 drives the linear reciprocating motion of the material taking assembly 400, and the linear reciprocating motion of the shaft body 301 drives the opening and closing of the first jaw 402 and the second jaw 403.

[0057] As Figure 11 、 Figure 10 and Figure 9 As shown, a first guiding groove 40231 is provided on the first jaw 402, and a second guiding groove 40331 is provided on the second jaw 403. An included angle exists between the guiding directions of the first guiding groove 40231 and the second guiding groove 40331. A third connecting shaft 3013 installed in the first guiding groove 40231 and the second guiding groove 40331 is provided on the shaft body 301. The shaft body 301 changes the included angle between the guiding directions of the first guiding groove 40231 and the second guiding groove 40331 through the linear reciprocating motion of the third connecting shaft 3013, thereby controlling the opening and closing of the first jaw 402 and the second jaw 403.

[0058] Specifically, as Figure 11 and Figure 9As shown, the first jaw 402 includes a first clamping portion 4021, a first mounting portion 4022, and a first guiding portion 4023 arranged in sequence. The first mounting portion 4022 is cooperatively mounted with the base 401 through a first connecting shaft 4024. The second jaw 403 includes a second clamping portion 4031, a second mounting portion 4032, and a second guiding portion 4033 arranged in sequence. The second mounting portion 4032 is cooperatively mounted with the base 401 through a second connecting shaft 4034. The first guiding portion 4023, the second guiding portion 4033, and the shaft body 301 are cooperatively mounted through a third connecting shaft 3013.

[0059] As Figure 8 shown, a sixth annular groove for accommodating the sixth sealing ring 60 is formed in the base 401, and the base 401 is threadedly mounted with the shaft sleeve 201.

[0060] As Figure 10 and Figure 11 shown, a receiving groove 4011 for inserting the first jaw 402 and the second jaw 403 is formed at the bottom of the base 401. The first guiding portion 4023, the second guiding portion 4033, a part of the first mounting portion 4022, and a part of the second mounting portion 4032 are all inserted into the receiving groove 4011. A first mounting hole 40221 for inserting the first connecting shaft 4024 is formed in the first mounting portion 4022 inserted into the receiving groove 4011, and a second mounting hole 40321 for inserting the second connecting shaft 4034 is formed in the second mounting portion 4032 inserted into the receiving groove 4011. A plurality of positioning holes 4012 communicating with the receiving groove 4011 and for fixing both ends of the first connecting shaft 4024 and both ends of the second connecting shaft 4034 are formed in the base 401, so as to realize the rotational mounting of the first jaw 402 with the base 401 through the first connecting shaft 4024, and the rotational mounting of the second jaw 403 with the base 401 through the second connecting shaft 4034.

[0061] As Figure 11 shown, a first guiding groove 40231 is formed on the first guiding portion 4023. The first guiding groove 40231 is formed at one end of the first guiding portion 4023 away from the first mounting portion 4022. The first guiding groove 40231 is in a U-shaped opening and penetrates through the end of the first guiding portion 4023. The first guiding groove 40231 has a first center line L1, and the first guiding groove 40231 is symmetric about the first center line L1.

[0062] A second guiding groove 40331 is formed on the second guiding portion 4033. The second guiding groove 40331 is formed at one end of the second guiding portion 4033 away from the second mounting portion 4032. The second guiding groove 40331 is in a U-shaped opening and penetrates through the end of the second guiding portion 4033. The second guiding groove 40331 has a second center line L2, and the second guiding groove 40331 is symmetric about the second center line L2.

[0063] As Figure 11 , Figure 9 and Figure 8 shown, an included angle is provided between the first guiding groove 40231 and the second guiding groove 40331. A third mounting hole 3012 is formed on the shaft body 301. The third connecting shaft 3013 passes through the third mounting hole 3012, the first guiding groove 40231 and the second guiding groove 40331 simultaneously. The linear reciprocating motion of the shaft body 301 drives the third connecting shaft 3013 to move within the first guiding groove 40231 and the second guiding groove 40331.

[0064] In a state where the first clamping portion 4021 and the second clamping portion 4031 are closed, the distance between the first center line L1 and the second center line L2 gradually decreases along a direction approaching the axis of the third connecting shaft 3013. Of course, in other embodiments, in a state where the first clamping portion 4021 and the second clamping portion 4031 are closed, the distance between the first center line L1 and the second center line L2 may also gradually increase along a direction approaching the axis of the third connecting shaft 3013.

[0065] As Figure 9 shown, the axes of the first connecting shaft 4024, the second connecting shaft 4034 and the third connecting shaft 3013 are parallel to each other and are all perpendicular to the axis of the shaft body 301. The connecting line of the axes of the first connecting shaft 4024, the second connecting shaft 4034 and the third connecting shaft 3013 forms an isosceles triangle.

[0066] As Figure 11 shown, in a state where the first clamping portion 4021 and the second clamping portion 4031 are closed, the distance between the inner side walls formed by the first mounting portion 4022 and the first guiding portion 4023 and the inner side walls formed by the second mounting portion 4032 and the second guiding portion 4033 gradually increases from being closely attached to gradually increasing, then gradually decreasing, and finally gradually increasing again along a direction approaching the shaft body 301. The distance between the outer side walls formed by the outer side wall formed by the first mounting portion 4022 and the first guiding portion 4023 and the second mounting portion 4032 and the second guiding portion 4033 gradually increases and then gradually decreases along a direction approaching the shaft body 301.

[0067] The downward movement of the shaft body 301 drives the downward movement of the third connecting shaft 3013. The third connecting shaft 3013 moves towards the bottom of the first guiding groove 40231 and the second guiding groove 40331, thereby driving the first jaw 402 to rotate with the first connecting shaft 4024 as a fulcrum and the second jaw 403 to rotate with the second connecting shaft 4034 as a fulcrum. The rotation direction of the first jaw 402 is opposite to the rotation direction of the second jaw 403, thereby driving the distance between the first clamping portion 4021 and the second clamping portion 4031 to increase.

[0068] When clamping the scissor feet or keycaps, the upward movement of the shaft body 301 drives the upward movement of the third connecting shaft 3013. The third connecting shaft 3013 gradually moves away from the bottoms of the first guiding groove 40231 and the second guiding groove 40331. The first clamping jaw 402 rotates again with the first connecting shaft 4024 as the fulcrum, and the second clamping jaw 403 rotates again with the second connecting shaft 4034 as the fulcrum. At this time, the rotation directions of the first clamping jaw 402 and the second clamping jaw 403 are opposite, thereby driving the distance between the first clamping portion 4021 and the second clamping portion 4031 to decrease, so as to clamp the scissor feet or keycaps.

[0069] In other embodiments, a material taking device includes a housing assembly 100, a first piston assembly 200, a second piston assembly 300, and a material taking assembly 400. The material taking assembly is used for taking or discharging materials. Among them, a first channel 110 is provided in the housing assembly 100, a second channel 210 is provided in the first piston assembly 200, the material taking assembly 400 is cooperatively installed with the first piston assembly 200 and the second piston assembly 300. The first piston assembly 200 can perform linear reciprocating motion in the first channel 110, the second piston assembly 300 can perform linear reciprocating motion in the second channel 210 and the first channel 110, and the material taking assembly 400 performs linear reciprocating motion driven by the second piston assembly 300.

[0070] The material taking assembly 400 is a suction nozzle, which is connected to an external air source. The suction nozzle is cooperatively installed with the shaft body 301. The shaft body 301 drives the suction nozzle to perform linear reciprocating motion, and the keycaps can be sucked through the suction nozzle.

[0071] In other embodiments, there is also a feeding device, which includes the above-mentioned material taking device, and the material taking device is used to clamp materials.

[0072] The feeding device further includes a driving mechanism cooperatively installed with the material taking device. The driving mechanism drives the material taking device to rotate and move in one or more directions of the X-axis direction, the Y-axis direction, and the Z-axis direction, so that the material taking device can perform transportation after clamping materials.

[0073] The foregoing description of the specific exemplary embodiments of the present invention is for the purposes of illustration and exemplification. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many changes and variations are possible in light of the above teaching. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A material taking device, characterized in that, Comprising: A housing assembly having a first channel therein; A first piston assembly capable of performing linear reciprocating motion within the first channel. The first piston assembly has a second channel therein. The first piston assembly and the housing assembly cooperate to form a sealed first chamber and a second chamber. By controlling the air pressure difference between the first chamber and the second chamber, the first piston assembly is driven to perform linear reciprocating motion. The first piston assembly includes a bushing and a first piston disposed on the bushing for separating the first chamber and the second chamber; A second piston assembly capable of performing linear reciprocating motion within the first channel and the second channel. The second piston assembly and the first piston assembly, the housing assembly, and the material taking assembly cooperate to form a sealed fourth chamber and a fifth chamber. By controlling the air pressure difference between the fourth chamber and the fifth chamber, the second piston assembly is driven to perform linear reciprocating motion. The second piston assembly includes a shaft body installed within the bushing and a second piston disposed on the shaft body for separating the fourth chamber and the fifth chamber. The fourth chamber communicates with the first chamber. An air passage is formed within the shaft body. One end of the air passage communicates with the interior of the fifth chamber, and the other end penetrates through the end of the shaft body and is connected to an external air source. When air is inflated into the first chamber and the fifth chamber discharges air outward through the air passage, the air flow within the first chamber will flow into the fourth chamber, thereby pushing the second piston and the shaft body downward. When the first chamber discharges air outward and inflates the fifth chamber through the air passage, the second piston and the shaft body are pushed upward; And A material taking assembly cooperatively installed with the first piston assembly and the second piston assembly. The material taking assembly performs linear reciprocating motion driven by the first piston assembly and performs material taking or discharging driven by the second piston assembly.

2. The material taking device according to claim 1, wherein The first piston assembly and the housing assembly cooperate to form a sealed third chamber. The material taking device changes the driving force received by the first piston assembly in its axial direction by controlling the pressure of the third chamber.

3. The material taking device according to claim 1, wherein The material taking assembly includes a base cooperatively installed with the bushing, a first jaw and a second jaw installed on the base. The first jaw and the second jaw are simultaneously cooperatively installed with the shaft body. The linear reciprocating motion of the bushing drives the linear reciprocating motion of the material taking assembly, and the linear reciprocating motion of the shaft body drives the opening and closing of the first jaw and the second jaw.

4. The material taking device according to claim 3, wherein A first guiding groove is provided on the first jaw, and a second guiding groove is provided on the second jaw. An included angle exists between the guiding directions of the first guiding groove and the second guiding groove. A third connecting shaft installed in the first guiding groove and the second guiding groove is provided on the shaft body. The shaft body changes the included angle between the guiding directions of the first guiding groove and the second guiding groove through the linear reciprocating motion of the third connecting shaft, thereby controlling the opening and closing of the first jaw and the second jaw.

5. A material taking device, characterized in that, Comprising: A housing assembly having a first channel therein; The first piston assembly is capable of making a linear reciprocating motion within the first channel. A second channel is provided within the first piston assembly. The first piston assembly and the housing assembly cooperate to form a sealed first chamber and a second chamber. By controlling the air pressure difference between the first chamber and the second chamber, the first piston assembly is driven to make a linear reciprocating motion. The first piston assembly includes a bushing and a first piston disposed on the bushing for separating the first chamber and the second chamber. The second piston assembly is capable of making a linear reciprocating motion within the first channel and the second channel. The second piston assembly and the first piston assembly, the housing assembly, and the material taking assembly cooperate to form a sealed fourth chamber and a fifth chamber. By controlling the air pressure difference between the fourth chamber and the fifth chamber, the second piston assembly is driven to make a linear reciprocating motion. The second piston assembly includes a shaft body installed within the bushing and a second piston disposed on the shaft body for separating the fourth chamber and the fifth chamber. The fourth chamber communicates with the first chamber. An air passage is provided within the shaft body. One end of the air passage communicates with the interior of the fifth chamber, and the other end penetrates through the end of the shaft body and is connected to an external air source. When air is inflated into the first chamber and the fifth chamber discharges air outward through the air passage, the air flow within the first chamber will flow into the fourth chamber, thereby pushing the second piston and the shaft body downward. When the first chamber discharges air outward and inflates the fifth chamber through the air passage, the second piston and the shaft body are pushed upward. and The material taking assembly is cooperatively installed with the second piston assembly. The material taking assembly makes a linear reciprocating motion driven by the second piston assembly. The material taking assembly is used for taking or discharging materials.

6. A feeding device, characterized in that, It includes the material taking device according to any one of claims 1 to 5.

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