Valve core automatic assembly machine

Abstract

A valve core automatic assembly machine is suitable for assembling a faucet valve core. The valve core automatic assembly machine includes a material transfer device arranged on a workbench and a valve stem feeding device connected to the material transfer device, a first sealing ring assembly device, a valve seat feeding device, an insertion device, a second sealing ring assembly device, a check ring plug-in device, a first ceramic sheet assembly device, a correction device, a second ceramic sheet assembly device and a rubber plug assembly device; the first sealing ring is assembled into one with the valve stem, and the second sealing ring is assembled into one with the valve seat; the check ring plug-in device assembles the valve stem and the valve seat into one, the first ceramic sheet and the second ceramic sheet are respectively assembled into the valve seat by the first ceramic sheet assembly device and the second ceramic sheet assembly device in sequence, the rubber plug assembly device installs the rubber plug into the valve seat, the rubber plug presses and fixes the second ceramic sheet, and the correction device corrects the position of the valve seat. The valve core automatic assembly machine has the characteristics of reasonable structural design, high efficiency and low cost.

Description

Technical Field

[0001] The invention relates to the technical field of faucet valve core assembly, and in particular to an automatic valve core assembly machine. Background Art

[0002] The faucet valve core is the core component of the faucet, which directly affects the function and quality of the faucet. The existing faucet valve cores are mainly of three types: rubber valve cores, stainless steel valve cores and ceramic valve cores, among which ceramic valve cores are the most widely used. Domestic faucet valve core assembly generally uses manual processing by operators, which is inefficient and has high assembly costs, and the assembly quality is difficult to guarantee. In the prior art, the patent specification of a faucet valve core assembly machine (announcement number: CN106826230B, authorization announcement date 2019-06-04) discloses the technology "a faucet valve core assembly machine, including a frame, the frame is provided with a horizontally arranged turntable, a rotary drive device for driving the turntable to rotate, a fixed plate located above the turntable, and a shell feeding device, a shell position correction device, a valve stem feeding device, a movable ceramic sheet feeding device, a movable ceramic sheet detection device, a fixed ceramic sheet feeding device, a fixed ceramic sheet position correction device, a sealing ring feeding device, a fixed ceramic sheet detection device, a rubber pad feeding device and a stripping device arranged in sequence clockwise or counterclockwise around the axis of the turntable". The overall design of the valve core assembly machine is not reasonable and the efficiency is low. Therefore, it is even more necessary to further develop a valve core assembly machine with reasonable structural design, high efficiency, low cost and quality assurance. Summary of the invention

[0003] The invention provides a valve core assembly machine with reasonable structural design, high efficiency, low cost and guaranteed quality.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a valve core automatic assembly machine, suitable for assembling faucet valve cores, the valve core automatic assembly machine includes a material transmission device arranged on a workbench and a valve stem feeding device, a first sealing ring assembly device, a valve seat feeding device, an insertion device, a second sealing ring assembly device, a check ring plug-in device, a first ceramic sheet assembly device, a correction device, a second ceramic sheet assembly device and a rubber plug assembly device connected to the material transmission device; the first sealing ring assembly device assembles the first sealing ring and the valve stem into one, and the second sealing ring assembly device assembles the first sealing ring and the valve stem into one. The two sealing rings are assembled into one with the valve seat; the valve stem assembled with the first sealing ring is inserted into the valve seat assembled with the second sealing ring by the insertion device, and the two are fixedly connected together by a check ring connected by a check ring plug-in device to form a valve core semi-finished product; the first ceramic sheet and the second ceramic sheet are respectively assembled into the valve seat by the first ceramic sheet assembly device and the second ceramic sheet assembly device in sequence, and the rubber plug assembly device installs the rubber plug into the valve seat, and the rubber plug presses and fixes the second ceramic sheet; before assembling the second ceramic sheet, the correction device corrects the position of the valve seat so that the second ceramic sheet is installed in the preset position of the valve seat.

[0005] Furthermore, the material transmission device includes a first turntable, a second turntable and a material transfer mechanism arranged between the first turntable and the second turntable, a valve stem positioning fixture is arranged on the first turntable, and a valve core positioning fixture is arranged on the second turntable; the valve stem feeding device and the first sealing ring assembly device are arranged in sequence along the circumference of the first turntable, and are respectively matched and connected to the valve stem positioning fixture; the first ceramic piece assembly device, the correction device, the second ceramic piece assembly device and the rubber plug assembly device are arranged in sequence along the circumference of the second turntable, and are respectively matched and connected to the valve core positioning fixture; the valve seat feeding device, the insertion device, the second sealing ring assembly device, and the check ring plug-in device are respectively arranged close to the material transfer mechanism, the valve seat feeding device and the insertion device are arranged on the side of the material transfer mechanism close to the first turntable, and the second sealing ring assembly device and the check ring plug-in device are arranged on the side of the material transfer mechanism close to the second turntable.

[0006] Furthermore, a closing device and a detection device are sequentially arranged on the discharge side of the rubber plug assembly device. The closing device drives the first ceramic sheet to rotate a first angle by rotating the valve stem, so that the valve core formed by the first ceramic sheet and the second ceramic sheet is in a closed state. The detection device performs an airtightness test on the assembled valve core to ensure that the entire valve core is assembled qualified.

[0007] Furthermore, the closing device includes a valve stem gripping and rotating mechanism and a valve seat anti-movement mechanism. When the valve core positioned in the valve core positioning fixture rotates between the valve stem gripping and rotating mechanism and the valve seat anti-movement mechanism, the gripping piece of the valve stem gripping and rotating mechanism moves up and grips the valve stem, while the anti-movement retaining piece of the valve seat anti-movement mechanism moves down into the valve seat and prevents it from rotating. The gripping piece drives the valve stem to rotate a first angle to complete the closing of the valve core. The detection device includes a valve core removal mechanism, a valve core pushing and positioning mechanism and a valve core detection mechanism. The valve core removal mechanism grabs the valve core from the valve core positioning fixture and transfers it to the valve core guide groove of the valve core pushing and positioning mechanism. The valve core detection mechanism includes an air pressure switch. The air pressure switch performs an air tightness test on the valve core transmitted to the bottom thereof.

[0008] Furthermore, the correction device includes a correction shaft and a correction sensor. A through groove is radially opened at the end of the correction shaft. A correction block is movably connected in the through groove. When the correction shaft is driven to rotate, the correction block moves radially along the correction shaft under the action of centrifugal force and is partially embedded in a preset wall groove on the inner wall of the valve seat. A rotating plate with a sensing material is sleeved on the correction shaft. The correction sensor provides a signal for the rotation position of the correction shaft through the rotating plate, so that the correction shaft drives the valve seat to rotate to a preset position.

[0009] Furthermore, it also includes a wear-resistant ring feeding device for supplying wear-resistant rings, the output end of the wear-resistant ring feeding device is cooperatively connected with a wear-resistant ring insertion hole matching the wear-resistant ring, the wear-resistant ring insertion hole is provided with a detection insertion hole on the side close to the valve seat feeding device, and optical fiber sensors for detecting whether the first sealing ring and the wear-resistant ring on the valve stem are assembled in place are arranged around the detection insertion hole; the insertion device is cooperatively connected with the wear-resistant ring feeding device, the valve seat feeding device and the valve stem positioning fixture, the insertion device includes three insertion clamps arranged side by side, the insertion clamp close to the side of the valve stem positioning fixture removes the valve stem from the valve stem positioning fixture and inserts it into the wear-resistant ring insertion hole to complete the wear-resistant ring assembly, and at the same time, the middle insertion clamp inserts the valve stem assembled with the wear-resistant ring into the detection insertion hole and the insertion clamp close to the side of the valve seat feeding device removes the valve stem from the detection insertion hole and inserts it into the valve seat.

[0010] Furthermore, the material shifting mechanism comprises a material shifting guide rail and a material shifting push rod, the material shifting push rod pushes and shifts the valve seat assembled with the valve stem placed in the material shifting guide rail; the second sealing ring assembling device comprises a second sealing ring feeding mechanism, a second sealing ring pushing mechanism, a second sealing ring lifting mechanism and a second sealing ring picking and delivering mechanism, the second sealing ring enters the second sealing ring pushing block of the second sealing ring pushing mechanism from the output end of the second sealing ring feeding mechanism, the second sealing ring pushing block pushes the second sealing ring into the widening area, the widening area is provided with a petal-shaped widening block, the second sealing ring lifting needle of the second sealing ring lifting mechanism is inserted into the bottom of the petal-shaped widening block from the bottom, and the petal-shaped widening block is outwardly facing the second sealing ring. The second sealing ring is widened, and the second sealing ring insert of the second sealing ring picking and feeding mechanism is inserted into the inner wall of the second sealing ring to pick up the piece, and the second sealing ring is inserted into the outer ring of the valve seat at the corresponding position on the material transfer guide rail. At this time, the petal-shaped widening block returns to its original closed state; the check clamp plug-in device includes a check clamp feeding mechanism, a check clamp pushing mechanism and a check clamp insertion mechanism. The output end of the check clamp feeding mechanism discharges the material into the check clamp pushing block of the check clamp pushing mechanism. The check clamp pushing block pushes the check clamp to one side of the check clamp insertion block of the check clamp insertion mechanism. The check clamp insertion block inserts the check clamp between the valve stem and the valve seat to fix it.

[0011] Furthermore, the second ceramic sheet assembly device includes a second ceramic sheet feeding mechanism, a second ceramic sheet picking and delivering mechanism and a second ceramic sheet steering mechanism, the second ceramic sheet steering mechanism includes a steering member, the output end of the second ceramic sheet feeding mechanism is connected to the steering member for material delivery, the steering member rotates 90 degrees after receiving the material, and the second ceramic sheet picking and delivering mechanism grabs the material from the steering member and transfers it to the valve seat of the semi-finished valve core.

[0012] Furthermore, the first sealing ring assembly device includes a first sealing ring feeding mechanism, a first sealing ring pushing mechanism, a first sealing ring picking and delivering mechanism and a first sealing ring lifting and assembly mechanism. The first sealing ring pushing mechanism pushes the first sealing ring output by the first sealing ring feeding mechanism into the first sealing ring accommodating hole. The first sealing ring picking and delivering mechanism includes a conical picking member. The conical picking member takes the first sealing ring out of the first sealing ring accommodating hole and transfers it to the first sealing ring assembly groove member in the first sealing ring lifting and assembly mechanism. The first sealing ring assembly groove member translates to the bottom of the valve stem positioning fixture and is lifted upward to assemble the first sealing ring to the outer ring of the valve stem.

[0013] Furthermore, the valve stem feeding device includes a valve stem feeding mechanism and a valve stem picking and delivering mechanism, the valve stem picking and delivering mechanism picks up materials from the output end of the valve stem feeding mechanism and transfers them to the valve stem positioning fixture of the first turntable; the first ceramic sheet assembly device includes a first ceramic sheet feeding mechanism, a first ceramic sheet steering mechanism and a first ceramic sheet picking and delivering mechanism, the first ceramic sheet steering mechanism includes a first ceramic sheet steering block, the material output from the output end of the first ceramic sheet feeding mechanism is transported to the first ceramic sheet steering block of the first ceramic sheet steering mechanism, and the first ceramic sheet picking and delivering mechanism takes out the first ceramic sheet from the first ceramic sheet steering block and transfers it to the valve seat of the semi-finished valve core.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The valve core automatic assembly machine of the present invention makes the valve core as a whole have the characteristics of reasonable and compact design, high efficiency and low cost through various independently created devices. At the same time, the check ring plugged by the check ring plug-in device is fixedly connected to form a semi-finished valve core; before assembling the second ceramic sheet, the correction device corrects the position of the valve seat so that the second ceramic sheet is installed in the preset position of the valve seat, which can ensure the assembly quality of the entire automatic assembly machine.

[0016] 2. A closing device and a detection device are arranged in sequence on the discharge side of the rubber plug assembly device. The closing device drives the first ceramic sheet to rotate to a first angle by rotating the valve stem, so that the valve core formed by the first ceramic sheet and the second ceramic sheet is in a closed state. The detection device performs an airtightness test on the assembled valve core to ensure that the entire valve core is assembled to be qualified, thereby further ensuring the quality of the valve core leaving the factory.

[0017] 3. A wear-resistant ring is assembled between the valve stem and the valve seat of the valve core, which greatly prolongs the service life of the entire valve core and is also one of the guarantees of the quality of the valve core. At the same time, after the first sealing ring and the wear-resistant ring are assembled, they are tested to see if they are assembled in place, which further guarantees the assembly quality of the entire valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the valve core structure of the present invention;

[0019] Figure 2 yes Figure 1 Schematic diagram of the decomposition structure;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the valve core automatic assembly machine of the present invention;

[0021] Figure 4 It is a schematic diagram of the planar structure of the valve core automatic assembly machine of the present invention;

[0022] Figure 5It is a schematic diagram of the structure of the first turntable of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the second turntable of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the closing device of the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the detection device of the present invention;

[0026] Fig. 9 It is a schematic diagram of the structure of the correction device of the present invention;

[0027] Fig.10 yes Fig. 9 Schematic diagram of the local decomposition structure;

[0028] Fig.11 It is a schematic diagram of the structure of the insertion device and the wear-resistant ring feeding device of the present invention;

[0029] Fig.12 It is a structural schematic diagram of the material transfer mechanism of the present invention;

[0030] Fig.13 is a structural schematic diagram of a second sealing ring assembly device of the present invention;

[0031] Fig.14 yes Fig.13 A schematic diagram of a local enlarged structure;

[0032] Fig.15 It is a structural schematic diagram of the non-return snap ring assembly device of the present invention;

[0033] Fig.16 is a schematic structural diagram of a second ceramic sheet assembly device of the present invention;

[0034] Fig.17 It is a structural schematic diagram of the first sealing ring assembly device of the present invention;

[0035] Fig.18 yes Fig.17 A schematic diagram of a local enlarged structure;

[0036] Fig.19 It is a structural schematic diagram of the valve stem feeding device of the present invention;

[0037] Fig. 20 is a schematic structural diagram of a first ceramic sheet assembly device of the present invention;

[0038] Fig.21 It is a structural schematic diagram of the rubber plug assembly device of the present invention. DETAILED DESCRIPTION

[0039] The following specifically describes the implementation modes of the present invention in conjunction with the accompanying drawings. The accompanying drawings are only for reference and illustration and do not constitute a limitation on the scope of patent protection of the present invention.

[0040] The valve core automatic assembly machine 100 of the present invention is suitable for being electrically connected to a controller and a touch screen, and the valve core automatic assembly machine 100 of the present invention is controlled by the controller, wherein the controller and the touch screen are existing controllers and touch screens, and their structures and control principles are well known in the art, so they will not be described in detail here.

[0041] like Figures 1 to 21 As shown, the valve core automatic assembly machine 100 disclosed in the present invention is suitable for assembling a faucet valve core 200. The faucet valve core 200 in this embodiment is a 90-degree valve core. The valve core 200 in this embodiment includes a valve stem 201, a first sealing ring 202 (double ring), a wear-resistant ring 203, a valve seat 204, a second sealing ring 205, a check ring 206, a first ceramic sheet 207, a second ceramic sheet 208 and a rubber plug 209. The valve core automatic assembly machine disclosed in this embodiment includes a material transfer device arranged on a workbench 101 and a valve stem feeding device 10, a first sealing ring assembly device 20, a valve seat feeding device 40, an insertion device 105, a second sealing ring assembly device 50, a check ring plug-in device 60, a first ceramic sheet assembly device 70, a correction device 106, a second ceramic sheet assembly device 80 and a rubber plug assembly device 90 connected to the material transfer device; the first sealing ring assembly device 20 assembles the first sealing ring 202 and the valve stem 201 into one, and the second sealing ring assembly device 50 assembles the second sealing ring 205 and the valve seat 204 into one; the valve stem 201 assembled with the first sealing ring The insertion device 105 is inserted into the valve seat 204 assembled with the second sealing ring, and the two are fixedly connected together by the check ring 206 inserted by the check ring plug-in device 60 to form a valve core semi-finished product; the first ceramic sheet 207 and the second ceramic sheet 208 are respectively assembled into the valve seat 204 by the first ceramic sheet assembly device 70 and the second ceramic sheet assembly device 80 in sequence, and the rubber plug assembly device 90 installs the rubber plug 209 into the valve seat 204, and the rubber plug 209 presses and fixes the second ceramic sheet 208; before assembling the second ceramic sheet, the correction device 106 corrects the position of the valve seat 204 so that the second ceramic sheet 208 is installed in the preset position of the valve seat 204.

[0042] As a further improvement of this embodiment, the material transfer device includes a first rotating disk 102, a second rotating disk 103 and a material transfer mechanism 104 arranged between the first rotating disk 102 and the second rotating disk 103, a valve stem positioning fixture 1021 is arranged on the first rotating disk 102, and a valve core positioning fixture 1031 is arranged on the second rotating disk 103. The valve stem feeding device 10 and the first sealing ring assembly device 20 are arranged in sequence along the circumference of the first rotating disk 102, and are respectively connected to the valve stem positioning fixture 1021. The first ceramic sheet assembly device 70, the correction device 10, the second ceramic sheet assembly device 80 and the rubber plug assembly device 90 are arranged in sequence along the circumference of the second rotating disk 103, and are respectively connected to the valve core positioning fixture 1031. The valve seat feeding device 40, the insertion device 105, the second sealing ring assembly device 50, and the check ring plug-in device 60 are respectively arranged close to the material transfer mechanism 104. Specifically, the valve seat feeding device 40 and the inserting device 105 are arranged on the side of the material transfer mechanism close to the first rotary disk 102, and the second sealing ring assembly device 50 and the non-return clamping ring plugging device 60 are arranged on the side of the material transfer mechanism 104 close to the second rotary disk 103. Specifically, the first rotary disk 102 and the second rotary disk 103 are driven by the divider driven by the motor of the prior art.

[0043] As a further improvement of the present embodiment, a closing device 107 and a detecting device 108 are sequentially arranged on the discharge side of the plug assembly device 90. The closing device 107 drives the first ceramic sheet to rotate 207 to a first angle by rotating the valve stem 201, so that the valve core formed by the first ceramic sheet 207 and the second ceramic sheet 208 is in a closed state. The detecting device 107 performs an airtightness test on the assembled valve core 200 to ensure that the entire valve core is assembled to be qualified.

[0044] As a further improvement of this embodiment, the closing device 107 includes a valve stem gripping and rotating mechanism and a valve seat anti-movement mechanism. When the valve core positioned in the valve core positioning fixture 1031 rotates between the valve stem gripping and rotating mechanism and the valve seat anti-movement mechanism, the gripping member 1071 of the valve stem gripping and rotating mechanism moves up and grips the valve stem 201, while the anti-movement retaining member 1072 of the valve seat anti-movement mechanism moves down into the valve seat 204 and prevents it from rotating. The gripping member 1071 drives the valve stem to rotate to a first angle to complete the closure of the valve core. Specifically, the valve stem upward cylinder 1075 drives the gripping member 1071 to move up and down, and the valve stem rotation cylinder 1074 drives the gripping member 1071 to rotate. The gripping member 1071 includes a gripping cylinder 10712 and a gripping jaw 10711, and the gripping cylinder is transmission-connected to the gripping jaw; the anti-movement cylinder 1073 drives the anti-movement retaining member 1072 to move up and down; the first angle is 90 degrees.

[0045] The detection device 108 includes a valve core removal mechanism, a valve core pushing and positioning mechanism, and a valve core detection mechanism. The valve core removal mechanism grabs the valve core from the valve core positioning fixture and transfers it to the valve core guide groove of the valve core pushing and positioning mechanism. The valve core detection mechanism includes an air pressure switch, which performs air tightness detection on the valve core transferred directly below it. Specifically, the valve core removal mechanism includes a valve core removal claw 1081, which includes a valve core removal claw 10811. The valve core removal claw 10811 is driven to open and close by the valve core removal cylinder 10812. At the same time, the valve core removal downward cylinder 1082 and the valve core removal translation cylinder 1083 are linked to transfer the valve core removal claw 1081 from the valve core positioning fixture to the valve core guide groove 1084. The valve core pusher positioning mechanism also includes a positioning rake 1086. The valve core positioning cylinder and the valve core pusher cylinder 1085 cooperate so that the positioning rake 1086 transfers the valve core product placed in the valve core guide groove 1084 to the bottom of the air pressure switch 1088. The detection cylinder 1089 drives the air pressure switch 1088 to move downward to detect the valve core product. The valve core positioning cylinder includes a positioning transverse cylinder 1087 and a positioning longitudinal cylinder (not shown in the figure), and the two are linked. Preferably, the positioning rake transfers the five valve core products placed in the valve core guide groove to the bottom of the air pressure switch at one time, and the five air pressure switches detect them. The air pressure switch itself is a prior art, which is purchased directly from the market. Its structure and working principle are well known and will not be further described here.

[0046] As a further improvement of this embodiment, the correction device 106 includes a correction shaft 1061 and a correction sensor 1064. A through slot 10611 is radially provided at the end of the correction shaft 1061. Both sides of the through slot 10611 are provided with symmetrical stop blocks 10612. The correction block 1062 is movably connected in the through slot. When the correction shaft 1061 is driven to rotate, the correction block 1062 moves radially along the correction shaft 1061 under the action of centrifugal force and is partially embedded in the preset wall groove of the inner wall of the valve seat 204. The stop block limits it to prevent it from detaching. A rotating piece 1063 with a sensing material is sleeved on the correction shaft 1061. The correction sensor 1064 provides a signal for the rotation position of the correction shaft 1061 through the rotating piece 1063, so that the correction shaft 1061 drives the valve seat to rotate to a preset position. Specifically, the correction shaft 1061 is driven to rotate by the correction servo motor 1065, and is driven to move up and down by the correction cylinder 1066.

[0047] As a further improvement of the present embodiment, it also includes a wear-resistant ring feeding device 30 for supplying wear-resistant rings, the output end of the wear-resistant ring feeding device 30 is connected with a wear-resistant ring insertion hole 33 matching the wear-resistant ring 203, the wear-resistant ring insertion hole 33 is provided with a detection insertion hole 34 on one side of the valve seat feeding device, and the detection insertion hole 34 is surrounded by an optical fiber sensor 35 for detecting whether the first sealing ring and the wear-resistant ring on the valve stem are assembled in place; the insertion device 105 is connected with the wear-resistant ring feeding device 30, The valve seat feeding device 40 and the valve stem positioning fixture 1021, the insertion device 105 includes three inserting clamps 1051 arranged side by side, the inserting clamp close to the valve stem positioning fixture removes the valve stem from the valve stem positioning fixture 1021 and inserts it into the wear ring insertion hole 33 to complete the wear ring assembly, while the middle inserting clamp inserts the valve stem assembled with the wear ring into the detection insertion hole 34 and the inserting clamp close to the valve seat feeding device 40 removes the valve stem from the detection insertion hole and inserts it into the valve seat 204. Specifically, the wear ring feeding device 30 includes a wear ring vibration plate 31 and a wear ring direct vibration track 32, and the wear ring vibration plate 31 is fed into the wear ring insertion hole 33 through the wear ring direct vibration track 32. The wear ring translation cylinder and the wear ring downward movement cylinder are linked to enable the insert clamp 1051 to complete the above translation and up and down movement. The insert clamp 1051 is a prior art pneumatic claw, which includes a cylinder and a claw, and the cylinder drives and connects the claw. The valve seat feeding device 40 includes a valve seat vibration plate 41 and a valve seat feeding belt 42. The valve seat vibration plate outputs the valve seat through the valve seat feeding belt, and the valve seat feeding belt 42 is driven by the valve seat feeding motor 43.

[0048] As a further improvement of the present embodiment, the material transfer mechanism 104 includes a material transfer guide rail 1041 and a material transfer push rod 1042, and the material transfer push rod 1042 pushes and transfers the valve seat assembled with the valve stem placed in the material transfer guide rail 1041. Specifically, the material transfer transverse cylinder 1043 and the material transfer longitudinal cylinder 1044 are linked so that the material transfer push rod transfers the valve seat assembled with the valve stem from the front side of the material transfer guide rail to the rear side thereof. A material transfer leveling mechanism 1045 is also provided on the material inlet side of the material transfer guide rail, and the material transfer leveling mechanism levels the valve seat inserted into the valve stem. At the same time, a material transfer transmission mechanism 1046 is also provided on the material outlet side of the material transfer guide rail, and the material transfer transmission mechanism transfers the semi-finished valve core to the valve core positioning fixture.

[0049] The second sealing ring assembly device 50 includes a second sealing ring feeding mechanism, a second sealing ring pushing mechanism, a second sealing ring lifting mechanism and a second sealing ring picking and delivering mechanism. The second sealing ring 205 enters the second sealing ring pushing block 53 of the second sealing ring pushing mechanism from the output end of the second sealing ring feeding mechanism. The second sealing ring pushing block 53 pushes the second sealing ring into the widening area 54. The widening area 54 is provided with a petal-shaped widening block 55. The second sealing ring lifting needle (not shown in the figure) of the second sealing ring lifting mechanism is inserted from the bottom into the bottom of the petal-shaped widening block 55. The petal-shaped widening block 55 widens the second sealing ring 205 outward. The second sealing ring insert 56 of the second sealing ring picking and delivering mechanism is inserted into the inner wall of the second sealing ring for picking up. At this time, the petal-shaped widening block returns to the original closed state. The second sealing ring is inserted into the outer ring of the valve seat at the corresponding position on the material transfer guide 1041. Specifically, the second sealing ring pushing cylinder drives the second sealing ring pushing block 53 to push the second sealing ring to the widening area 54, and the second sealing ring lifting cylinder drives the second sealing ring lifting needle (not shown) to move upward so that the petal-shaped widening block 55 is opened outward. The second sealing ring picking and delivering mechanism includes a second sealing ring picking and delivering translation cylinder 59 and a second sealing ring picking and delivering downward cylinder 510 to cooperate and drive the second sealing ring insert.

[0050] The check ring plug-in device 60 includes a check ring feeding mechanism, a check ring pushing mechanism and a check ring inserting mechanism. The output end of the check ring feeding mechanism discharges the material into the check ring pushing block of the check ring pushing mechanism. The check ring pushing block pushes the check ring to one side of the check ring insertion block of the check ring insertion mechanism. The check ring insertion block inserts the check ring between the valve stem and the valve seat to fix them. Specifically, the check ring feeding mechanism includes a check ring vibration disk 61 and a check ring vibration track 62. The check ring vibration disk 61 feeds the check ring to the matching position of the check ring pushing block 63 through the check ring vibration track 62. The check ring pushing cylinder 64 is connected to the check ring pushing block 63 to push the check ring to the matching position of the check ring insertion block 65. The check ring insertion cylinder 66 is connected to the check ring insertion block 65 to complete the assembly of the check ring.

[0051] As a further improvement of the present embodiment, the second ceramic sheet assembly device 80 includes a second ceramic sheet feeding mechanism, a second ceramic sheet picking and delivering mechanism and a second ceramic sheet steering mechanism. The second ceramic sheet steering mechanism includes a steering member 83. The output end of the second ceramic sheet feeding mechanism is connected to the steering member. The steering member rotates 90 degrees after receiving the material. The second ceramic sheet picking and delivering mechanism grabs the material from the steering member and transfers it to the valve seat of the semi-finished valve core. Specifically, the second ceramic sheet feeding mechanism includes a second ceramic sheet vibration plate 81 and a second ceramic sheet direct vibration track 82. The second ceramic sheet steering mechanism also includes a second ceramic sheet steering cylinder 84. The second ceramic sheet steering cylinder 84 is transmission-connected to the steering member 83. The second ceramic sheet picking and delivering mechanism includes a second ceramic sheet translation cylinder 87, a second ceramic sheet downward cylinder 86 and an air claw 85. The second ceramic piece vibration plate 81 is fed to the steering member through the second ceramic piece straight vibration track 82, and the second ceramic piece steering cylinder 84 is connected to the steering member 83 to rotate it 90 degrees and be in a vertical state. The second ceramic piece translation cylinder 87 cooperates with the second ceramic piece downward movement cylinder 86 to be connected to the claw 85, and the claw 85 grabs the second ceramic piece 208 from the steering member 83 and transfers it to the valve seat.

[0052] As a further improvement of this embodiment, the first sealing ring assembly device 20 includes a first sealing ring feeding mechanism, a first sealing ring pushing mechanism, a first sealing ring picking and delivering mechanism and a first sealing ring lifting and assembly mechanism. The first sealing ring pushing mechanism pushes the first sealing ring output by the first sealing ring feeding mechanism into the first sealing ring accommodating hole 25. The first sealing ring picking and delivering mechanism includes a conical material picking member 26. The conical material picking member 26 takes the first sealing ring out of the first sealing ring accommodating hole 25 and transfers it to the first sealing ring assembly groove member 29 in the first sealing ring lifting and assembly mechanism. The first sealing ring assembly groove member 29 is translated to the bottom of the valve stem positioning fixture 1021, and is lifted upward to assemble the first sealing ring to the outer ring of the valve stem. Specifically, the first sealing ring feeding mechanism includes a first sealing ring vibration plate 21 and a first sealing ring vertical vibration track 22, the first sealing ring pushing mechanism includes a first sealing ring pushing cylinder 24 and a first sealing ring pushing block 23, the first sealing ring picking and delivering mechanism also includes a first sealing ring translation cylinder 28 and a first sealing ring lowering cylinder 27, and the first sealing ring lifting assembly mechanism also includes a first sealing ring lifting cylinder 210 and a first sealing ring lifting translation cylinder 211. The first sealing ring vibration disk 21 feeds materials to the matching position of the first sealing ring pushing block 23 through the first sealing ring straight vibration track 22; the first sealing ring pushing cylinder 24 is connected to the first sealing ring pushing block 23 and pushes the first sealing ring 202 into the first sealing ring accommodating hole 25; the first sealing ring translation cylinder 28 cooperates with the first sealing ring downward cylinder 27 to drive the conical material picking part 26 to pick up materials and transfer the first sealing ring to the first sealing ring assembly groove part 29; the first sealing ring lifting cylinder 210 cooperates with the first sealing ring lifting translation cylinder 211 to drive the first sealing ring assembly groove part 29, lifts it up and inserts the first sealing ring 202 into the outer ring of the valve stem 201.

[0053] Preferably, the valve stem feeding device 10 includes a valve stem feeding mechanism and a valve stem picking and delivering mechanism, the valve stem picking and delivering mechanism picks up materials from the output end of the valve stem feeding mechanism and transfers them to the valve stem positioning fixture 1021 of the first turntable; specifically, the valve stem feeding mechanism includes a valve stem vibration disk 11 and a valve stem feeding track 12, the valve stem picking and delivering mechanism includes a valve stem translation cylinder 15, a valve stem downward movement cylinder 14 and a valve stem air claw 13, the valve stem vibration disk 11 delivers materials to one side of the valve stem air claw 13 through the valve stem feeding track 12, the valve stem translation cylinder 15 cooperates with the valve stem downward movement cylinder 14 to drive the valve stem air claw 13 to transfer the valve stem to the valve stem positioning fixture 1021.

[0054] As a further improvement of the present embodiment, the first ceramic sheet assembly device includes a first ceramic sheet feeding mechanism, a first ceramic sheet steering mechanism and a first ceramic sheet picking and delivering mechanism, the first ceramic sheet steering mechanism includes a first ceramic sheet steering block 73, the output of the first ceramic sheet feeding mechanism output end is sent to the first ceramic sheet steering block 73 of the first ceramic sheet steering mechanism, the first ceramic sheet picking and delivering mechanism takes out the first ceramic sheet 207 from the first ceramic sheet steering block and transfers it to the valve seat of the semi-finished valve core. Specifically, the first ceramic sheet feeding mechanism includes a first ceramic sheet vibration disk 71 and a first ceramic sheet direct vibration track 72, the first ceramic sheet steering mechanism also includes a first ceramic sheet steering cylinder 74, and the first ceramic sheet picking and delivering mechanism includes a first ceramic sheet picking and delivering translation cylinder 77, a first ceramic sheet picking and delivering downward cylinder 76 and a suction nozzle 75. The first ceramic sheet vibration plate 71 is fed into the first ceramic sheet steering block 73 through the first ceramic sheet straight vibration track 72, the first ceramic sheet steering cylinder 74 drives the first ceramic sheet steering block 73 to rotate, and the first ceramic sheet picking and delivering translation cylinder 77 cooperates with the first ceramic sheet picking and delivering downward cylinder 76 to drive the suction nozzle 75 to complete the assembly of the first ceramic sheet 207.

[0055] Preferably, the plug assembly device 90 includes a plug feeding mechanism and a plug inserting mechanism, and the plug inserting mechanism inserts the plug at the output end of the plug feeding mechanism into the valve seat of the semi-finished valve core to complete the assembly of the valve core. Specifically, the plug feeding mechanism includes a plug vibration plate 91 and a plug direct vibration track 92, and the plug insertion mechanism includes a plug insertion cylinder 94 and a plug positioning block 93. The plug vibration plate 91 is fed into the plug positioning block 93 through the plug direct vibration track 92, and the plug insertion cylinder 94 moves downward to insert the plug 209 in the plug positioning block 93 into the valve seat.

[0056] Working principle: The valve stem feeding device feeds the valve stem to the valve stem positioning fixture of the first rotary disk, and the first rotary disk drives the valve stem positioning fixture to rotate. When the valve stem reaches the appropriate position of the first sealing ring assembly device, the first sealing ring assembly device assembles the first sealing ring to the outer ring of the valve stem. The valve stem assembled with the first sealing ring is taken out of the valve stem positioning fixture by the insertion device and cooperates with the wear-resistant ring assembly device to complete the wear-resistant ring assembly. At the same time, it is tested whether it is assembled in place, and cooperates with the valve seat feeding device to insert the valve stem into the valve seat. The valve seat with the valve stem plugged in completes the second sealing ring assembly and the check ring assembly in turn under the material transfer of the material transfer mechanism. The material transfer mechanism then transfers the semi-finished valve core to the valve core positioning fixture of the second rotary disk. The second rotary disk drives the valve core positioning fixture carrying the semi-finished valve core to rotate and transfer the material, and reaches the matching positions of the first ceramic sheet assembly device, the correction device, the second ceramic sheet assembly device and the rubber plug assembly device in turn, and completes the assembly of the corresponding components in turn. After the valve core is assembled, the closing device closes the valve core, and the detection device performs an air tightness test on the valve core in the closed state and outputs the final product.

[0057] Compared with the prior art, the present invention has the following advantages:

[0058] 1. The valve core automatic assembly machine of the present invention makes the valve core as a whole have the characteristics of reasonable and compact design, high efficiency and low cost through various independently created devices. At the same time, the check ring plugged by the check ring plug-in device is fixedly connected to form a semi-finished valve core; before assembling the second ceramic sheet, the correction device corrects the position of the valve seat so that the second ceramic sheet is installed in the preset position of the valve seat, which can ensure the assembly quality of the entire automatic assembly machine.

[0059] 2. A closing device and a detection device are arranged in sequence on the discharge side of the rubber plug assembly device. The closing device drives the first ceramic sheet to rotate to a first angle by rotating the valve stem, so that the valve core formed by the first ceramic sheet and the second ceramic sheet is in a closed state. The detection device performs an airtightness test on the assembled valve core to ensure that the entire valve core is assembled to be qualified, thereby further ensuring the quality of the valve core leaving the factory.

[0060] 3. A wear-resistant ring is assembled between the valve stem and the valve seat of the valve core, which greatly prolongs the service life of the entire valve core and is also one of the guarantees of the quality of the valve core. At the same time, after the first sealing ring and the wear-resistant ring are assembled, they are tested to see if they are assembled in place, which further guarantees the assembly quality of the entire valve core.

[0061] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of protection of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A valve core automatic assembly machine, suitable for assembling faucet valve cores, characterized by: The valve core automatic assembly machine comprises a material transfer device arranged on a workbench, a valve stem feeding device, a first sealing ring assembly device, a valve seat feeding device, an insertion device, a second sealing ring assembly device, a check ring plugging device, a first ceramic sheet assembly device, a correction device, a second ceramic sheet assembly device and a rubber plug assembly device, and a wear-resistant ring feeding device, which are connected to the material transfer device; the first sealing ring assembly device assembles the first sealing ring and the valve stem into one, and the second sealing ring assembly device assembles the second sealing ring and the valve seat into one; the valve stem assembled with the first sealing ring is inserted into the valve seat assembled with the second sealing ring by the insertion device, and the two are fixed by the check ring plugged by the check ring plugging device The first ceramic sheet and the second ceramic sheet are respectively assembled into the valve seat by the first ceramic sheet assembly device and the second ceramic sheet assembly device in sequence, and the rubber plug assembly device installs the rubber plug into the valve seat, and the rubber plug presses and fixes the second ceramic sheet; before assembling the second ceramic sheet, the correction device corrects the position of the valve seat so that the second ceramic sheet is installed in the preset position of the valve seat, and the discharge side of the rubber plug assembly device is sequentially provided with a closing device and a detection device, and the closing device drives the first ceramic sheet to rotate a first angle by rotating the valve stem, so that the valve core formed by the first ceramic sheet and the second ceramic sheet is in a closed state, and the detection device is for the completed assembly The valve core is tested for air tightness to ensure that the entire valve core is assembled properly. The correction device includes a correction shaft and a correction sensor. A through groove is radially opened at the end of the correction shaft. A correction block is movably connected in the through groove. When the correction shaft is driven to rotate, the correction block moves radially along the correction shaft under the action of centrifugal force and is partially embedded in the preset wall groove of the inner wall of the valve seat. A rotating piece with a sensing material is sleeved on the correction shaft. The correction sensor provides a signal for the rotation position of the correction shaft through the rotating piece, so that the correction shaft drives the valve seat to rotate to a preset position. The output end of the wear-resistant ring feeding device is connected with a wear-resistant ring insertion hole matching the wear-resistant ring. The wear-resistant ring insertion hole is connected to the wear-resistant ring. A detection insertion hole is provided on one side of the entry hole close to the valve seat feeding device, and optical fiber sensors for detecting whether the first sealing ring and the wear-resistant ring on the valve stem are assembled in place are provided around the detection insertion hole; the insertion device cooperates with and connects the wear-resistant ring feeding device, the valve seat feeding device and the valve stem positioning fixture, and the insertion device includes three insertion clamps arranged side by side, the insertion clamp close to the side of the valve stem positioning fixture takes the valve stem out of the valve stem positioning fixture and inserts it into the wear-resistant ring insertion hole to complete the wear-resistant ring assembly, while the middle insertion clamp inserts the valve stem assembled with the wear-resistant ring into the detection insertion hole and the insertion clamp close to the side of the valve seat feeding device takes the valve stem out of the detection insertion hole and inserts it into the valve seat.

2. The valve core automatic assembly machine according to claim 1, characterized in that: The material transmission device includes a first turntable, a second turntable and a material transfer mechanism arranged between the first turntable and the second turntable, a valve stem positioning fixture is arranged on the first turntable, and a valve core positioning fixture is arranged on the second turntable; the valve stem feeding device and the first sealing ring assembly device are arranged in sequence along the circumference of the first turntable, and are respectively matched and connected with the valve stem positioning fixture; the first ceramic piece assembly device, the correction device, the second ceramic piece assembly device and the rubber plug assembly device are arranged in sequence along the circumference of the second turntable, and are respectively matched and connected with the valve core positioning fixture; the valve seat feeding device, the insertion device, the second sealing ring assembly device, and the check ring plug-in device are respectively arranged close to the material transfer mechanism, the valve seat feeding device and the insertion device are arranged on the side of the material transfer mechanism close to the first turntable, and the second sealing ring assembly device and the check ring plug-in device are arranged on the side of the material transfer mechanism close to the second turntable.

3. The valve core automatic assembly machine according to claim 2, characterized in that: The closing device includes a valve stem gripping and rotating mechanism and a valve seat anti-movement mechanism. When the valve core positioned in the valve core positioning fixture rotates between the valve stem gripping and rotating mechanism and the valve seat anti-movement mechanism, the gripping piece of the valve stem gripping and rotating mechanism moves up and grips the valve stem, while the anti-movement retaining piece of the valve seat anti-movement mechanism moves down into the valve seat and prevents it from rotating. The gripping piece drives the valve stem to rotate a first angle to complete the closure of the valve core. The detection device includes a valve core removal mechanism, a valve core pushing and positioning mechanism and a valve core detection mechanism. The valve core removal mechanism grabs the valve core from the valve core positioning fixture and transfers it to the valve core guide groove of the valve core pushing and positioning mechanism. The valve core detection mechanism includes an air pressure switch. The air pressure switch performs an air tightness detection on the valve core transmitted to the bottom thereof.

4. The valve core automatic assembly machine according to claim 2, characterized in that: The material shifting mechanism comprises a material shifting guide rail and a material shifting push rod, which pushes and shifts the valve seat assembled with the valve stem placed in the material shifting guide rail; the second sealing ring assembling device comprises a second sealing ring feeding mechanism, a second sealing ring pushing mechanism, a second sealing ring lifting mechanism and a second sealing ring picking and delivering mechanism, the second sealing ring enters the second sealing ring pushing block of the second sealing ring pushing mechanism from the output end of the second sealing ring feeding mechanism, the second sealing ring pushing block pushes the second sealing ring into the widening area, and the widening area is provided with a petal-shaped widening block, the second sealing ring lifting needle of the second sealing ring lifting mechanism is inserted into the bottom of the petal-shaped widening block from the bottom, the petal-shaped widening block widens the second sealing ring outward, the second sealing ring inserter of the second sealing ring picking and delivering mechanism is inserted into the inner wall of the second sealing ring to pick up the part, and the second sealing ring is inserted into the outer ring of the valve seat at the corresponding position on the material shifting guide rail, at which time the petal-shaped widening block returns to its original closed state; The check snap ring plug-in device includes a check snap ring feeding mechanism, a check snap ring pushing mechanism and a check snap ring inserting mechanism. The output end of the check snap ring feeding mechanism discharges the material into the check snap ring pushing block of the check snap ring pushing mechanism. The check snap ring pushing block pushes the check snap ring to one side of the check snap ring insertion block of the check snap ring insertion mechanism. The check snap ring insertion block inserts the check snap ring between the valve stem and the valve seat to fix them.

5. The valve core automatic assembly machine according to claim 1 or 2, characterized in that: The second ceramic sheet assembly device includes a second ceramic sheet feeding mechanism, a second ceramic sheet picking and delivering mechanism and a second ceramic sheet steering mechanism. The second ceramic sheet steering mechanism includes a steering member. The output end of the second ceramic sheet feeding mechanism is connected to the steering member for material delivery. The steering member rotates 90 degrees after receiving the material. The second ceramic sheet picking and delivering mechanism grabs the material from the steering member and transfers it to the valve seat of the semi-finished valve core.

6. The valve core automatic assembly machine according to claim 1 or 2, characterized in that: The first sealing ring assembly device includes a first sealing ring feeding mechanism, a first sealing ring pushing mechanism, a first sealing ring picking and delivering mechanism and a first sealing ring lifting and assembly mechanism. The first sealing ring pushing mechanism pushes the first sealing ring output by the first sealing ring feeding mechanism into the first sealing ring accommodating hole. The first sealing ring picking and delivering mechanism includes a conical material taking member. The conical material taking member takes the first sealing ring out of the first sealing ring accommodating hole and transfers it to the first sealing ring assembly groove member in the first sealing ring lifting and assembly mechanism. The first sealing ring assembly groove member translates to the bottom of the valve stem positioning fixture and is lifted upward to assemble the first sealing ring to the outer ring of the valve stem.

7. The valve core automatic assembly machine according to claim 1 or 2, characterized in that: The valve stem feeding device includes a valve stem feeding mechanism and a valve stem picking and delivering mechanism. The valve stem picking and delivering mechanism picks up materials from the output end of the valve stem feeding mechanism and transfers them to the valve stem positioning fixture of the first turntable; the first ceramic sheet assembly device includes a first ceramic sheet feeding mechanism, a first ceramic sheet steering mechanism and a first ceramic sheet picking and delivering mechanism. The first ceramic sheet steering mechanism includes a first ceramic sheet steering block. The material output from the output end of the first ceramic sheet feeding mechanism is delivered to the first ceramic sheet steering block of the first ceramic sheet steering mechanism. The first ceramic sheet picking and delivering mechanism takes out the first ceramic sheet from the first ceramic sheet steering block and transfers it to the valve seat of the semi-finished valve core; the rubber plug assembly device includes a rubber plug feeding mechanism and a rubber plug insertion mechanism. The rubber plug insertion mechanism inserts the rubber plug at the output end of the rubber plug feeding mechanism into the valve seat of the semi-finished valve core to complete the assembly of the valve core.

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