Membrane feeding mechanism of pressure switch

Abstract

The utility model discloses a diaphragm feeding mechanism of a pressure switch. The diaphragm feeding mechanism comprises a diaphragm output device, a diaphragm suction device and a diaphragm turnover device, the diaphragm feeding device comprises a diaphragm conveying device, a diaphragm feeding table and a diaphragm feeding device. The diaphragm output device comprises a rotating disc and a plurality of diaphragm charging barrels; the rotating disc is provided with a plurality of diaphragm output through holes; the bottom of the diaphragm charging barrel is inserted into the diaphragm output through hole; the membrane suction device comprises a first suction cup which is arranged upwards. The diaphragm turnover device comprises a turnover second suction cup; the diaphragm transfer device comprises a third suction cup which is arranged downwards; a placing groove for placing a diaphragm is formed in the top surface of the diaphragm feeding table; the membrane feeding device comprises a membrane clamping jaw, and the membrane clamping jaw can move in a lifting mode and can move front and back. Through cooperation of the first suction cup, the second suction cup, the third suction cup and the diaphragm clamping jaw, the connecting part can be turned upwards, the diaphragm is conveyed to a diaphragm mounting station of a production line, and manual operation is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of accessory conveying, in particular to a diaphragm feeding mechanism for a pressure switch. Background Art

[0002] The diaphragm type pressure switch in the prior art is a kind of pressure switch, which is widely used in fields such as petroleum, chemical industry, metallurgy, electric power and water supply to control the medium pressure in the system by controlling the opening and closing of the medium input pipeline.

[0003] A connecting part is arranged in the middle of the elastic diaphragm, one end of the conduction rod is connected with the elastic diaphragm through the connecting part, and the other end of the conduction rod is located in the opening and closing valve body switch of the control medium input pipeline.

[0004] When the medium pressure in the detected system is higher or lower than the rated safety pressure, the elastic diaphragm in the diaphragm type pressure switch will displace, and respectively drive the conduction rod connected with the elastic diaphragm to move in the opposite direction, so that the other end of the conduction rod moves synchronously in the valve body switch, thereby making the valve body switch conduct or disconnect, and further achieving the purpose of controlling the medium pressure in the system.

[0005] Since the operation speed of the automatic assembly production line of the diaphragm type pressure switch is fast, the feeding frequency of the elastic diaphragm is high, and when the elastic diaphragm is fed, the connecting part needs to be placed upward to meet the installation requirements of the elastic diaphragm. Therefore, if the elastic diaphragms are manually placed in the material tray one by one to provide feeding for the automatic assembly production line, the feeding requirements of the elastic diaphragms of the automatic assembly production line cannot be met, and the operation efficiency of the automatic assembly production line will be reduced. Content of the Utility Model

[0006] Aiming at the above deficiencies, the purpose of the utility model is to provide a diaphragm feeding mechanism for a pressure switch, which solves the problems that the manual feeding of elastic diaphragms cannot meet the feeding requirements of the automatic assembly production line and will reduce the operation efficiency of the automatic assembly production line.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] A diaphragm feeding mechanism for a pressure switch includes a diaphragm output device, a diaphragm suction device, a diaphragm flipping device, a diaphragm transfer device, a diaphragm feeding table and a diaphragm feeding device arranged in sequence from front to back along the running direction;

[0009] The diaphragm output device includes a rotating disc and a plurality of diaphragm cartridges; the rotating disc is provided with a plurality of diaphragm output through holes; the plurality of diaphragm output through holes are respectively close to the circumferential edge of the rotating disc and are arranged at intervals, and the bottom of the diaphragm cartridge is inserted into the diaphragm output through hole, and the plurality of diaphragm cartridges rotate following the rotating disc; the inner cavity of the diaphragm cartridge is used for placing a plurality of diaphragms stacked one above the other in sequence.

[0010] The diaphragm suction device includes a first suction cup that can move up and down and back and forth, and the first suction cup is arranged upward; the diaphragm flipping device includes a second suction cup that can be flipped, and the second suction cup can face upward or downward.

[0011] The diaphragm transfer device includes a third suction cup that can move up and down and back and forth, and the third suction cup is arranged downward.

[0012] The top surface of the diaphragm loading table is provided with a placement groove for placing diaphragms; the diaphragm loading device includes at least one diaphragm gripper, and the diaphragm gripper can move up and down and back and forth.

[0013] The first suction cup is used to pass upward through the diaphragm output through hole and suck a diaphragm from the bottom of the diaphragm cartridge, and the first suction cup is also used to move the diaphragm upward close to the second suction cup by moving; the second suction cup is used to suck the diaphragm located on the first suction cup and flip the diaphragm 180°, so that the connecting part in the middle of the flipped diaphragm faces upward; the third suction cup is used to suck the flipped diaphragm from the second suction cup and place the diaphragm in the placement groove by moving again; the diaphragm gripper is used to clamp the diaphragm from the placement groove and place the diaphragm at the diaphragm installation station on the assembly line by moving again.

[0014] Further, it further includes a diaphragm conveying channel.

[0015] The diaphragm conveying channel is mounted between the diaphragm transfer device and the diaphragm loading table.

[0016] The top surface of the diaphragm conveying channel is provided with a diaphragm conveying groove; the diaphragm conveying groove extends in the front-rear direction and passes through the front and rear ends of the diaphragm conveying channel; the top of the diaphragm conveying groove is provided with a notch extending in the front-rear direction, and the notch is used to expose the connecting part of the diaphragm upward; the output end of the diaphragm conveying groove is communicated with the placement groove, and the input end of the diaphragm conveying groove is used to input the diaphragm held by the third suction cup.

[0017] Further, it further includes a linear vibrator.

[0018] The linear vibrator is installed below the diaphragm conveying channel, and the top surface of the linear vibrator abuts against the bottom surface of the diaphragm conveying channel.

[0019] The diaphragm conveying groove is inclined, and the output end of the diaphragm conveying groove is lower than the input end of the diaphragm conveying groove.

[0020] Furthermore, it further includes a diaphragm shaping device;

[0021] The diaphragm loading device is configured with two diaphragm grippers spaced apart front and back;

[0022] The diaphragm shaping device includes a mounting frame and two shaping grippers;

[0023] The mounting frame is arranged behind the diaphragm loading table. The two shaping grippers are mounted on the top surface of the mounting frame opposite to each other left and right. The opposite surfaces of the two shaping grippers are both provided with shaping parts, and the shaping parts are semi-circular inner grooves. The gap between the two shaping grippers is the diaphragm shaping station;

[0024] The diaphragm gripper close to the diaphragm loading table is used to clamp the connecting part of the diaphragm from the placement groove and place the diaphragm at the diaphragm shaping station;

[0025] The diaphragm gripper far from the diaphragm loading table is used to clamp the connecting part of the diaphragm that has been shaped between the two shaping grippers and place this diaphragm at the diaphragm installation station on the assembly line.

[0026] Specifically, the diaphragm flipping device includes a rotary cylinder, a connecting block and the second suction cup;

[0027] The rotary cylinder is mounted between the first suction cup and the third suction cup. The output end of the rotary cylinder extends horizontally to the right. The output end of the rotary cylinder is connected to the left end face of the connecting block. The rotary cylinder drives the connecting block to rotate around the output end of the rotary cylinder, and the second suction cup is mounted on the top surface or the bottom surface of the connecting block.

[0028] Specifically, the diaphragm sucking device includes a first guide rail plate, a first transverse guide rail, a first horizontal sliding frame, a first longitudinal guide rail, a first vertical sliding frame, a first transverse pushing cylinder, a first lifting cylinder and the first suction cup;

[0029] The first guide rail plate is erected behind the rotary disc. The first transverse guide rail is mounted on the right end face of the first guide rail plate. The first transverse guide rail and the first horizontal sliding frame extend along the front-back direction respectively;

[0030] The first lateral pushing cylinder is mounted at the rear end of the first guide rail plate, and the front end of the first guide rail plate extends below the rotating disc; the first horizontal sliding frame is slidably mounted on the first lateral guide rail, the output end of the first lateral pushing cylinder extends forward and is connected to the rear end face of the first horizontal sliding frame; the first lateral pushing cylinder pushes the first horizontal sliding frame to move back and forth along the first lateral guide rail;

[0031] The first longitudinal guide rail is installed on the right end face of the first horizontal sliding frame and extends in the up and down direction; the first vertical sliding frame is slidably mounted on the first longitudinal guide rail, the first lifting cylinder is mounted on the first horizontal sliding frame near the lower end of the first longitudinal guide rail; the output end of the first lifting cylinder extends upward and is connected to the first vertical sliding frame, the first suction cup is erected upward and mounted on the top of the first vertical sliding frame, the suction cup end of the first suction cup is exposed upward outside the top surface of the first vertical sliding frame, and the first lifting cylinder drives the first vertical sliding frame and the first suction cup to lift synchronously along the first longitudinal guide rail.

[0032] Specifically, the diaphragm transfer device includes a second guide rail plate, a second lateral guide rail, a second horizontal sliding frame, a second longitudinal guide rail, a second vertical sliding frame, a second lateral pushing cylinder, a second lifting cylinder and the third suction cup;

[0033] The second guide rail plate is erected near the second suction cup, the second lateral guide rail is installed on the right end face of the second guide rail plate, and the second lateral guide rail and the second guide rail plate extend in the front and rear directions respectively; the second lateral pushing cylinder is mounted at the rear end of the second guide rail plate, and the front end of the second lateral guide rail is located in front of the second suction cup; the second horizontal sliding frame is slidably mounted on the second lateral guide rail; the output end of the second lateral pushing cylinder extends forward and is connected to the rear end face of the second horizontal sliding frame; the second lateral pushing cylinder pushes the second horizontal sliding frame to move back and forth along the second lateral guide rail;

[0034] The second longitudinal guide rail is installed on the right end face of the second horizontal sliding frame and extends in the up and down direction; the second vertical sliding frame is slidably mounted on the second longitudinal guide rail, the second lifting cylinder is mounted on the second horizontal sliding frame near the upper end of the second longitudinal guide rail; the output end of the second lifting cylinder extends downward and is connected to the second vertical sliding frame, the third suction cup is erected downward and mounted on the bottom of the second vertical sliding frame, the suction cup end of the third suction cup is exposed downward outside the bottom surface of the second vertical sliding frame, and the second lifting cylinder drives the second vertical sliding frame and the third suction cup to lift synchronously along the second longitudinal guide rail.

[0035] Further, the diaphragm output device further includes a rotating motor;

[0036] The rotating motor is installed below the rotating disc, and the output end of the rotating motor faces upward and is connected to the center of the rotating disc. The rotating motor drives the rotating disc and multiple diaphragm cartridges to horizontally rotate around the center of the rotating disc;

[0037] Multiple diaphragm cartridges are arranged equidistantly along the circumferential edge of the rotating disc close to it.

[0038] Specifically, the diaphragm loading device includes a third guide rail plate, a guide rail pair, a third horizontal pushing cylinder, a connecting plate, two third horizontal sliding frames, two third longitudinal guide rails, two third vertical sliding frames, two third lifting cylinders, and two diaphragm grippers;

[0039] The third guide rail plate is erected behind the diaphragm loading table. The guide rail pair is installed on the left end face of the third guide rail plate and extends back and forth along the front surface of the third guide rail plate. The third horizontal pushing cylinder is mounted on the rear end of the third guide rail plate, and the front end of the third guide rail plate extends to the front of the diaphragm loading table. Two third horizontal sliding frames are mounted on the guide rail pair at intervals in the front and rear directions and can slide. The connecting plate extends in the front and rear directions, and the front and rear ends of the connecting plate are respectively connected to the two third horizontal sliding frames. The output end of the third horizontal pushing cylinder extends backward and is connected to the front end face of the front third horizontal sliding frame. The third horizontal pushing cylinder pushes the two third horizontal sliding frames and the connecting plate to move back and forth along the guide rail pair;

[0040] Two third longitudinal guide rails are respectively installed on the right end faces of the two third horizontal sliding frames and extend in the up and down direction. The third vertical sliding frame is slidably mounted on the corresponding third longitudinal guide rail. Two third lifting cylinders are mounted on the corresponding third horizontal sliding frames near the upper ends of the corresponding third longitudinal guide rails. The output end of the third lifting cylinder extends downward and is connected to the third vertical sliding frame. The diaphragm gripper is erected downward and installed at the bottom of the third vertical sliding frame. The claw clamping end of the diaphragm gripper is exposed downward outside the bottom surface of the third vertical sliding frame. The third lifting cylinder drives the corresponding third vertical sliding frame and the diaphragm gripper to lift synchronously along the third longitudinal guide rail.

[0041] Further, the first suction cup, the second suction cup, and the third suction cup are all vacuum suction cups;

[0042] The first suction cup and the third suction cup are respectively connected to the suction ports of an external vacuum pump through connecting pipes;

[0043] The second suction cup is a sunken circular groove. The second suction cup is used to hold the side of the diaphragm away from the connecting part. A connecting hole is provided on the side of the connecting block away from the rotary cylinder. The connecting hole penetrates through the inside of the connecting block inward and is connected to the second suction cup, and the connecting hole is connected to the suction port of an external vacuum pump outward.

[0044] The technical solution of the diaphragm feeding mechanism of a pressure switch proposed by the present utility model has the beneficial effects that: the diaphragm is sucked out from the bottom of the diaphragm cartridge by the first suction cup, and the diaphragm is flipped by the second suction cup to make the connecting part in the middle of the diaphragm face upward. Then, through the cooperation of the third suction cup and the diaphragm clamping jaws, the diaphragm is transferred to the diaphragm installation station of the assembly line. During this process, no manual operation is required, which can meet the feeding requirements of the automatic assembly production line and ensure the operation efficiency of the automatic assembly production line. Description of the Drawings

[0045] Figure 1 It is a schematic structural diagram of an embodiment of the diaphragm feeding mechanism of a pressure switch of the present utility model;

[0046] Figure 2 It is a schematic installation structure diagram of the diaphragm output device and the diaphragm suction device of an embodiment of the present utility model;

[0047] Figure 3 It is a schematic installation structure diagram of the diaphragm transfer device and the diaphragm feeding table of an embodiment of the present utility model;

[0048] Figure 4 It is a schematic structural diagram of the diaphragm flipping device of an embodiment of the present utility model;

[0049] Figure 5 It is a schematic structural diagram of the diaphragm feeding device of an embodiment of the present utility model;

[0050] Among them: diaphragm output device 1; diaphragm suction device 2; diaphragm flipping device 3; diaphragm transfer device 4; diaphragm conveying channel 5; linear vibrator 6; diaphragm loading table 7; diaphragm loading device 8; diaphragm shaping device 9; diaphragm 10; diaphragm cartridge 11; rotating disk 12; diaphragm conveying groove 511; shaping part 921; first guide rail plate 21; first transverse guide rail 22; first horizontal sliding frame 23; first longitudinal guide rail 24; first vertical sliding frame 25; first transverse pushing cylinder 26; first lifting cylinder 27; first suction cup 28; rotating cylinder 31; second suction cup 32; connecting block 33; second guide rail plate 41; second transverse guide rail 42; second horizontal sliding frame 43; second longitudinal guide rail 44; second vertical sliding frame 45; second transverse pushing cylinder 46; second lifting cylinder 47; third suction cup 48; rotating motor 13; placement groove 71; third guide rail plate 81; guide rail pair 82; third horizontal sliding frame 83; third longitudinal guide rail 84; third vertical sliding frame 85; third transverse pushing cylinder 86; third lifting cylinder 87; diaphragm gripper 88; connecting plate 89; mounting bracket 91; shaping gripper 92; connecting part 101; diaphragm output through hole 121; communication hole 331. Detailed implementation mode

[0051] The following combines the attached Figures 1-5 And further illustrates the technical solution of the present invention through specific implementation modes.

[0052] The attached drawings are only for illustrative purposes and cannot be construed as a limitation of this patent; in order to better illustrate this embodiment, some components in the attached drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted.

[0053] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be said that the interiors of two components are in communication. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] A diaphragm loading mechanism for a pressure switch, including a diaphragm output device 1, a diaphragm suction device 2, a diaphragm flipping device 3, a diaphragm transfer device 4, a diaphragm loading table 7, and a diaphragm loading device 8 arranged in sequence from front to back along the running direction;

[0055] The diaphragm output device 1 includes a rotating disk 12 and a plurality of diaphragm cartridges 11; the rotating disk 12 is provided with a plurality of diaphragm output through holes 121; the plurality of diaphragm output through holes 121 are respectively close to the circumferential edge of the rotating disk 12 and are arranged at intervals, and the bottom of the diaphragm cartridge 11 is inserted into the diaphragm output through hole 121, and the plurality of diaphragm cartridges 11 rotate following the rotating disk 12; the inner cavity of the diaphragm cartridge 11 is used for placing a plurality of diaphragms 10 stacked one above the other in sequence.

[0056] The diaphragm suction device 2 includes a first suction cup 28 that can move up and down and back and forth, and the first suction cup 28 is arranged upward; the diaphragm flipping device 3 includes a second suction cup 32 that can be flipped, and the second suction cup 32 can face upward or downward.

[0057] The diaphragm transfer device 4 includes a third suction cup 48 that can move up and down and back and forth, and the third suction cup 48 is arranged downward.

[0058] The top surface of the diaphragm loading table 7 is provided with a placement groove 71 for placing the diaphragm 10; the diaphragm loading device 8 includes at least one diaphragm gripper 88, and the diaphragm gripper 88 can move up and down and back and forth.

[0059] The first suction cup 28 is used to pass upward through the diaphragm output through hole 121 and suck a diaphragm 10 from the bottom of the diaphragm cartridge 11, and the first suction cup 28 is further used to move the diaphragm 10 upward close to the second suction cup 32 by moving; the second suction cup 32 is used to flip the diaphragm 10 sucked from the first suction cup 28 by 180°, so that the connecting portion 101 in the middle of the flipped diaphragm 10 faces upward; the third suction cup 48 is used to suck the flipped diaphragm 10 from the second suction cup 32 and place the diaphragm 10 in the placement groove 71 by moving again; the diaphragm gripper 88 is used to clamp the diaphragm 10 from the placement groove 71 and place the diaphragm 10 at the diaphragm installation station of the assembly line by moving again.

[0060] Figure 1 It is a schematic structural diagram of an embodiment of a diaphragm loading mechanism of a pressure switch of the present invention, and the diaphragm loading mechanism runs from front to back to convey the diaphragm 10 to the diaphragm installation station of the assembly line. Figure 2 It is a schematic installation structure diagram of the diaphragm output device 1 and the diaphragm suction device 2 of an embodiment of the present invention. Figure 3 It is a schematic installation structure diagram of the diaphragm transfer device 4 and the diaphragm loading table 7 of an embodiment of the present invention. Figure 4 It is a schematic structural diagram of the diaphragm flipping device 3 of an embodiment of the present invention. Figure 5Schematic diagram of the diaphragm loading device 8 according to an embodiment of the present utility model; in the above figure, a protruding connecting portion 101 is provided in the middle of one side of the diaphragm 10, the connecting portion 101 is used to connect with one end of the conduction rod, and the connecting portions 101 of the multiple diaphragms 10 in the inner cavity of the diaphragm cartridge 11 are all arranged downward. The above-mentioned diaphragm 10 is a rubber elastomer.

[0061] As Figures 1-5 shown, during use, first, the first suction cup 28 passes through the diaphragm output through hole 121 and sucks the side with the connecting portion 101 of a diaphragm 10 from the bottom of the diaphragm cartridge 11, and then the first suction cup 28 is moved to make the diaphragm 10 move upward close to the downward-facing second suction cup 32; the second suction cup 32 sucks the other side of the diaphragm 10 away from the connecting portion 101 from the first suction cup 28 and then flips 180°, so that the side with the connecting portion 101 of the diaphragm 10 faces upward; the third suction cup 48 sucks the diaphragm 10 from the upward-facing second suction cup 32 and places the diaphragm 10 in the placement groove 71 by moving; the diaphragm gripper 88 clamps the connecting portion 101 of the diaphragm 10 from the placement groove 71 and places the diaphragm 10 at the diaphragm installation station on the assembly line by moving. By operating in the above method in a cycle, the diaphragm 10 with the connecting portion 101 facing upward can be continuously conveyed to the diaphragm installation station on the assembly line.

[0062] Furthermore, it further includes a diaphragm conveying channel 5;

[0063] The diaphragm conveying channel 5 is mounted between the diaphragm transfer device 4 and the diaphragm loading table 7;

[0064] The top surface of the diaphragm conveying channel 5 is provided with a diaphragm conveying groove 511; the diaphragm conveying groove 511 extends in the front-rear direction and passes through the front and rear ends of the diaphragm conveying channel 5; the top of the diaphragm conveying groove 511 is provided with a notch extending in the front-rear direction, and the notch is used to expose the connecting portion 101 of the diaphragm 10 upward; the output end of the diaphragm conveying groove 511 is communicated with the placement groove 71, and the input end of the diaphragm conveying groove 511 is used to input the diaphragm 10 held by the third suction cup 48.

[0065] As Figure 1 and Figure 3 shown, by conveying the diaphragm 10 to the diaphragm loading table 7 through the diaphragm conveying channel 5, the travel length of the third suction cup 48 moving towards the placement groove 71 can be shortened, thereby improving the operating efficiency of the diaphragm loading mechanism.

[0066] Furthermore, it further includes a linear vibrator 6;

[0067] The linear vibrator 6 is installed below the diaphragm conveying channel 5, and the top surface of the linear vibrator 12 abuts against the bottom surface of the diaphragm conveying channel 5;

[0068] The diaphragm conveying groove 511 is inclined, and the output end of the diaphragm conveying groove 511 is lower than the input end of the diaphragm conveying groove 511.

[0069] As Figure 1 and Figure 3 shown, by inclining the diaphragm conveying groove 511 and making the output end of the diaphragm conveying groove 511 lower than the input end of the diaphragm conveying groove 511, multiple diaphragms 10 in the diaphragm conveying channel 5 of the diaphragm feeder can be vibrated by the linear vibrator, so that the multiple diaphragms 10 located in the diaphragm conveying channel 5 move along the diaphragm conveying groove 511 towards the placement groove 71 in contact with each other one by one, further improving the operating efficiency of the diaphragm loading mechanism.

[0070] Furthermore, it further includes a diaphragm shaping device 9;

[0071] The diaphragm loading device 8 is configured with two diaphragm grippers 88 spaced apart front and back;

[0072] The diaphragm shaping device 9 includes a mounting frame 91 and two shaping grippers 92;

[0073] The mounting frame 91 is arranged near the rear of the diaphragm loading table 7. Two shaping grippers 92 are mounted on the top surface of the mounting frame 91 opposite to each other left and right. Shaping parts 921 are provided on the opposite surfaces of the two shaping grippers 92. The shaping part 921 is a semi-circular inner groove. The gap between the two shaping grippers 92 is the diaphragm shaping station;

[0074] The diaphragm gripper 88 close to the diaphragm loading table 7 is used to grip the connecting part 101 of the diaphragm 10 from the placement groove 71 and place the diaphragm 10 at the diaphragm shaping station;

[0075] The diaphragm gripper 88 far from the diaphragm loading table 7 is used to grip the connecting part 101 of the diaphragm 10 that has been shaped between the two shaping grippers 92 and place the diaphragm 10 at the diaphragm mounting station on the assembly line.

[0076] Figure 5 The diaphragm loading device 8 in

[0077] As Figure 1 and Figure 5 shown, the two shaping grippers 92 drive the two shaping parts 921 to approach each other relatively, and the two shaping parts 921 simultaneously clamp the outer peripheral surface of the diaphragm 10 located at the diaphragm shaping station, so as to complete the shaping of the diaphragm 10 at the diaphragm shaping station. Subsequently, the two shaping grippers 92 move away from each other, causing the released diaphragm 10 to rebound and recover at the diaphragm shaping station, thereby having better flatness, so that the installation quality of the diaphragm 10 in the pressure switch can be improved.

[0078] Specifically, the diaphragm flipping device 3 includes a rotary cylinder 31, a connecting block 33, and the second suction cup 32;

[0079] The rotary cylinder 31 is mounted between the first suction cup 28 and the third suction cup 48. The output end of the rotary cylinder 31 extends horizontally to the right. The output end of the rotary cylinder 31 is connected to the left end face of the connecting block 33. The rotary cylinder 31 drives the connecting block 33 to rotate around the output end of the rotary cylinder 31. The second suction cup 32 is mounted on the top or bottom surface of the connecting block 33.

[0080] As Figure 4 shown, by driving the connecting block 33 to rotate around the output end of the rotary cylinder 31 by the rotary cylinder 31, the second suction cup 32 can be aligned upward with the third suction cup 48 or downward with the first suction cup 28 to meet the operation requirements of transferring the diaphragm 10.

[0081] Specifically, the diaphragm sucking device 2 includes a first guide rail plate 21, a first transverse guide rail 22, a first horizontal sliding frame 23, a first longitudinal guide rail 24, a first vertical sliding frame 25, a first transverse pushing cylinder 26, a first lifting cylinder 27, and the first suction cup 28;

[0082] The first guide rail plate 21 is erected behind the rotary disk 12. The first transverse guide rail 22 is mounted on the right end face of the first guide rail plate 21. The first transverse guide rail 22 and the first horizontal sliding frame 23 extend along the front - rear direction respectively;

[0083] The first transverse pushing cylinder 26 is mounted at the rear end of the first guide rail plate 21. The front end of the first guide rail plate 21 extends below the rotary disk 12. The first horizontal sliding frame 23 is slidably mounted on the first transverse guide rail 22. The output end of the first transverse pushing cylinder 26 extends forward and is connected to the rear end face of the first horizontal sliding frame 23. The first transverse pushing cylinder 26 pushes the first horizontal sliding frame 23 to move back and forth along the first transverse guide rail 22;

[0084] The first longitudinal guide rail 24 is installed on the right end face of the first horizontal sliding frame 23, and the first longitudinal guide rail 24 extends in the up and down direction; the first vertical sliding frame 25 is slidably mounted on the first longitudinal guide rail 24, and the first lifting cylinder 27 is mounted on the first horizontal sliding frame 23 near the lower end of the first longitudinal guide rail 24; the output end of the first lifting cylinder 27 extends upward and is connected to the first vertical sliding frame 25, the first suction cup 28 faces upward and is vertically installed on the top of the first vertical sliding frame 25, the suction cup end of the first suction cup 28 is exposed upward outside the top surface of the first vertical sliding frame 25, and the first lifting cylinder 27 drives the first vertical sliding frame 25 and the first suction cup 28 to synchronously lift along the first longitudinal guide rail 24.

[0085] As Figure 2 shown, the first horizontal sliding frame 23 is pushed forward along the first transverse guide rail 22 by the first transverse pushing cylinder 26. At the same time, the first vertical sliding frame 25 and the first suction cup 28 are driven by the first lifting cylinder 27 to synchronously descend, so that the upward-facing first suction cup 28 approaches the bottom surface of the rotating disk 12. The rotating disk 12 drives a plurality of diaphragm cartridges 11 to rotate. When one of the diaphragm cartridges 11 is directly above the first suction cup 28, the rotating disk 12 stops rotating. The first lifting cylinder 27 drives the first vertical sliding frame 25 and the first suction cup 28 to synchronously ascend, so that the first suction cup 28 passes upward through the diaphragm output through hole 121 and sucks a diaphragm 10 located at the bottom of the diaphragm cartridge 11. Then the first lifting cylinder 27 drives the first vertical sliding frame 25 and the first suction cup 28 to synchronously descend, so that the diaphragm 10 leaves the bottom of the diaphragm cartridge 11 and passes downward through the diaphragm output through hole 121. After that, the first transverse pushing cylinder 26 pushes the first horizontal sliding frame 23 to move backward along the first transverse guide rail 22, so that the first suction cup 28 is directly below the downward-facing second suction cup 32, in order to transfer the diaphragm 10 to the second suction cup 32.

[0086] Specifically, the diaphragm transfer device 4 includes a second guide plate 41, a second transverse guide rail 42, a second horizontal sliding frame 43, a second longitudinal guide rail 44, a second vertical sliding frame 45, a second transverse pushing cylinder 46, a second lifting cylinder 47 and the third suction cup 48;

[0087] The second guide rail plate 41 is erected near the second suction cup 32. The second transverse guide rail 42 is installed on the right end face of the second guide rail plate 41. The second transverse guide rail 42 and the second guide rail plate 41 extend along the front-rear direction respectively. The second transverse pushing cylinder 46 is mounted at the rear end of the second guide rail plate 41. The front end of the second transverse guide rail 42 is located in front of the second suction cup 32. The second horizontal sliding frame 43 is slidably mounted on the second transverse guide rail 42. The output end of the second transverse pushing cylinder 46 extends forward and is connected to the rear end face of the second horizontal sliding frame 43. The second transverse pushing cylinder 46 pushes the second horizontal sliding frame 43 to move back and forth along the second transverse guide rail 42.

[0088] The second longitudinal guide rail 44 is installed on the right end face of the second horizontal sliding frame 43. The second longitudinal guide rail 44 extends along the up-down direction. The second vertical sliding frame 45 is slidably mounted on the second longitudinal guide rail 44. The second lifting cylinder 47 is mounted near the upper end of the second longitudinal guide rail 44 on the second horizontal sliding frame 43. The output end of the second lifting cylinder 47 extends downward and is connected to the second vertical sliding frame 45. The third suction cup 48 is vertically installed downward at the bottom of the second vertical sliding frame 45. The suction cup end of the third suction cup 48 is exposed downward outside the bottom surface of the second vertical sliding frame 45. The second lifting cylinder 47 drives the second vertical sliding frame 45 and the third suction cup 48 to synchronously lift and lower along the second longitudinal guide rail 44.

[0089] As Figure 3As shown, the second horizontal sliding frame 43 is pushed forward along the second horizontal guide rail 42 by the second horizontal pushing cylinder 46. At the same time, the second vertical sliding frame 45 and the third suction cup 48 are synchronously lowered by the second lifting cylinder 47, so that the third suction cup 48 faces downward and approaches the upward second suction cup 32. After the third suction cup 48 sucks the diaphragm 10 on the top surface of the second suction cup 32 downward, the second suction cup 32 stops exhausting air. Then, the second lifting cylinder 47 drives the second vertical sliding frame 45 and the third suction cup 48 to rise synchronously, so that the diaphragm 10 is separated from the second suction cup 32, and the second suction cup 32 flips downward. Then, the second horizontal pushing cylinder 46 pushes the second horizontal sliding frame 43 to move backward along the second horizontal guide rail 42. At the same time, the second lifting cylinder 47 drives the second vertical sliding frame 45 and the third suction cup 48 to rise or fall synchronously, so that the diaphragm 10 on the bottom surface of the third suction cup 48 is horizontally aligned with the input end of the diaphragm conveying groove 511. Subsequently, the second horizontal pushing cylinder 46 continues to push the second horizontal sliding frame 43 to move backward along the second horizontal guide rail 42, so that the diaphragm 10 on the bottom surface of the third suction cup 48 enters the diaphragm conveying groove 511. Then, the third suction cup 48 stops exhausting air and releases the diaphragm 10 that enters the diaphragm conveying groove 511. In this way, the third suction cup 48 completes the operation of transferring the diaphragm 10 from the second suction cup 32 to the diaphragm conveying groove 511.

[0090] Further, the diaphragm output device 1 further includes a rotating motor 13;

[0091] The rotating motor 13 is installed below the rotating disc 12, and the output end of the rotating motor 13 is connected upward to the center of the rotating disc 12. The rotating motor 13 drives the rotating disc 12 and the plurality of diaphragm cartridges 11 to horizontally rotate around the center of the rotating disc 12;

[0092] The plurality of diaphragm cartridges 11 are arranged equidistantly along the circumferential edge of the rotating disc 12 close to the rotating disc 12.

[0093] As Figure 1 and Figure 2 shown, it is set that the distance between the central axes of two adjacent diaphragm cartridges 11 is a rotation step. When the last diaphragm 10 in one of the diaphragm cartridges 11 is sucked out by the first suction cup 28, the rotating motor 13 drives the rotating disc 12 and the plurality of diaphragm cartridges 11 to rotate a rotation step around the center of the rotating disc 12, so that the bottom of another diaphragm cartridge 11 is aligned downward with the first suction cup 28 through the corresponding diaphragm output through hole 121, so that the first suction cup 28 can suck out the diaphragms 10 in the bottom of another diaphragm cartridge 11 one by one.

[0094] Specifically, the diaphragm loading device 8 includes a third guide rail plate 81, a guide rail pair 82, a third lateral pushing cylinder 86, a connecting plate 89, two third horizontal sliding frames 83, two third longitudinal guide rails 84, two third vertical sliding frames 85, two third lifting cylinders 87, and two diaphragm grippers 88;

[0095] The third guide rail plate 81 is erected behind the diaphragm loading table 7. The guide rail pair 82 is installed on the left end face of the third guide rail plate 81 and extends back and forth along the front surface of the third guide rail plate 81. The third lateral pushing cylinder 86 is mounted on the rear end of the third guide rail plate 81, and the front end of the third guide rail plate 81 extends to the front of the diaphragm loading table 7. The two third horizontal sliding frames 83 are spaced apart front and back and slidably mounted on the guide rail pair 82. The connecting plate 89 extends in the front-back direction, and the front and rear ends of the connecting plate 89 are respectively connected to the two third horizontal sliding frames 83. The output end of the third lateral pushing cylinder 86 extends backward and is connected to the front end face of the forward third horizontal sliding frame 83. The third lateral pushing cylinder 86 pushes the two third horizontal sliding frames 83 and the connecting plate 89 to move back and forth along the guide rail pair 82;

[0096] The two third longitudinal guide rails 84 are respectively installed on the right end faces of the two third horizontal sliding frames 83 and extend in the up-down direction. The third vertical sliding frame 85 is slidably mounted on the corresponding third longitudinal guide rail 84. The two third lifting cylinders 87 are mounted on the corresponding third horizontal sliding frames 83 near the upper ends of the corresponding third longitudinal guide rails 84. The output end of the third lifting cylinder 87 extends downward and is connected to the third vertical sliding frame 85. The diaphragm gripper 88 is erected and installed downward at the bottom of the third vertical sliding frame 85, and the claw clamping end of the diaphragm gripper 88 is exposed downward outside the bottom surface of the third vertical sliding frame 85. The third lifting cylinder 87 drives the corresponding third vertical sliding frame 85 and the diaphragm gripper 88 to lift synchronously along the third longitudinal guide rail 84.

[0097] As Figure 5As shown in the figure, the connecting plate 89 and the two third horizontal sliding frames 83 are pushed forward along the guide pair 82 by the third horizontal pushing cylinder 86. At the same time, the two third vertical sliding frames 85 and the two diaphragm grippers 88 are driven by the two third lifting cylinders 87 to synchronously descend, so that the two diaphragm grippers 88 face downward and align with the diaphragm 10 in the placement groove 71 and the diaphragm 10 between the two shaping parts 921 respectively. When one diaphragm gripper 88 close to the diaphragm loading table 7 downward clamps the diaphragm 10 in the placement groove 71, and the other diaphragm gripper 88 close to the two shaping parts 921 simultaneously clamps the diaphragm 10 that has been shaped, the two third lifting cylinders 87 drive the two third vertical sliding frames 85, the two diaphragm grippers 88 and the two diaphragms 10 to synchronously ascend. Then the third horizontal pushing cylinder 86 pushes the connecting plate 89 and the two third horizontal sliding frames 83 to move backward along the guide pair 82. At the same time, the second lifting cylinder 47 drives the second vertical sliding frame 45 and the third suction cup 48 to synchronously ascend or descend. When the two diaphragm grippers 88 respectively face downward and align with the diaphragm shaping station and the diaphragm installation station on the assembly line, the two third lifting cylinders 87 drive the two third vertical sliding frames 85 and the two diaphragm grippers 88 to synchronously descend, so that the front diaphragm gripper 88 places the diaphragm 10 between the two shaping parts 921 at the diaphragm shaping station for shaping the diaphragm 10, and the rear diaphragm gripper 88 places the diaphragm 10 that has been shaped into the diaphragm installation station on the assembly line, so that the diaphragm 10 is installed in the pressure switch; thus, the two diaphragm grippers 88 complete a transfer operation of the two diaphragms 10 between the placement groove 71, the shaping station and the diaphragm installation station.

[0098] Further, the first suction cup 28, the second suction cup 32 and the third suction cup 48 are all vacuum suction cups;

[0099] The first suction cup 28, 32 and the third suction cup 48 are respectively connected to the suction ports of an external vacuum pump through connecting pipes;

[0100] The second suction cup 32 is a concave circular groove. The second suction cup 32 is used to hold the side of the diaphragm 10 away from the connecting portion 101. A connecting hole 331 is provided on the side of the connecting block 33 away from the rotary cylinder 31. The connecting hole 331 penetrates inward through the inside of the connecting block 33 and is connected to the second suction cup 32. The connecting hole 331 is connected to the suction port of an external vacuum pump outward.

[0101] The external vacuum pump provides the suction force for holding the module 10 for the first suction cup 28, the second suction cup 32 and the third suction cup 48, with low operating costs and convenient installation; the setting of the second suction cup 32 as a concave circular groove enables the second suction cup 32 to hold the entire surface of the diaphragm 10 away from the connecting portion 101, which can improve the stability during the flipping process of the diaphragm 10.

[0102] In summary, if Figures 1-5 In the embodiment of the utility model shown, the diaphragm feeding mechanism of the pressure switch sucks the diaphragm 10 out from the bottom of the diaphragm barrel 11 through the first suction cup 28, and flips the diaphragm 10 through the second suction cup 32 so that the connecting portion 101 in the middle of the diaphragm 10 faces upward, and then the third suction cup 48 and the diaphragm clamp 88 cooperate to transfer the diaphragm 10 to the diaphragm installation station of the assembly line. No manual operation is required during the process, which can meet the feeding needs of the automatic assembly production line and ensure the operating efficiency of the automatic assembly production line.

[0103] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A diaphragm feeding mechanism for a pressure switch, characterized in that, It includes a diaphragm output device, a diaphragm suction device, a diaphragm flipping device, a diaphragm transfer device, a diaphragm loading table, and a diaphragm loading device arranged in sequence from front to back along the running direction; The diaphragm output device includes a rotating disc and a plurality of diaphragm cartridges; the rotating disc is provided with a plurality of diaphragm output through-holes; the plurality of diaphragm output through-holes are respectively close to the circumferential edge of the rotating disc and are arranged at intervals, and the bottom of the diaphragm cartridge is inserted into the diaphragm output through-hole, and the plurality of diaphragm cartridges rotate following the rotating disc; the inner cavity of the diaphragm cartridge is used to place a plurality of diaphragms stacked one above the other; The diaphragm suction device includes a first suction cup that can move up and down and back and forth, and the first suction cup is arranged upward; the diaphragm flipping device includes a second suction cup that can be flipped, and the second suction cup can face upward or downward; The diaphragm transfer device includes a third suction cup that can move up and down and back and forth, and the third suction cup is arranged downward; The top surface of the diaphragm loading table is provided with a placement groove for placing diaphragms; the diaphragm loading device includes at least one diaphragm gripper, and the diaphragm gripper can move up and down and back and forth; The first suction cup is used to pass upward through the diaphragm output through-hole and suck a diaphragm from the bottom of the diaphragm cartridge, and the first suction cup is also used to move the diaphragm upward close to the second suction cup through movement; the second suction cup is used to suck the diaphragm located on the first suction cup and flip the diaphragm by 180°, so that the connecting part in the middle of the flipped diaphragm faces upward; the third suction cup is used to suck the flipped diaphragm from the second suction cup and place the diaphragm in the placement groove through movement; the diaphragm gripper is used to clamp the diaphragm from the placement groove and place the diaphragm in the diaphragm installation station of the assembly line through movement.

2. The diaphragm loading mechanism of the pressure switch according to claim 1, characterized in that It also includes a diaphragm conveying channel; The diaphragm conveying channel is mounted between the diaphragm transfer device and the diaphragm loading table; The top surface of the diaphragm conveying channel is provided with a diaphragm conveying groove; the diaphragm conveying groove extends in the front-back direction and passes through the front and rear ends of the diaphragm conveying channel; the top of the diaphragm conveying groove is provided with a notch extending in the front-back direction, and the notch is used to expose the connecting part of the diaphragm upward; the output end of the diaphragm conveying groove is communicated with the placement groove, and the input end of the diaphragm conveying groove is used to input the diaphragm held by the third suction cup.

3. The diaphragm loading mechanism of the pressure switch according to claim 2, characterized in that, It also includes a linear vibrator; The linear vibrator is installed below the diaphragm conveying channel, and the top surface of the linear vibrator abuts against the bottom surface of the diaphragm conveying channel; The diaphragm conveying groove is inclined, and the output end of the diaphragm conveying groove is lower than the input end of the diaphragm conveying groove.

4. The diaphragm loading mechanism of the pressure switch according to claim 1, wherein, It also includes a diaphragm shaping device; The diaphragm loading device is configured with two diaphragm grippers spaced apart front and back; The diaphragm shaping device includes a mounting frame and two shaping grippers; The mounting frame is arranged close to the rear of the diaphragm loading table, and the two shaping grippers are mounted on the top surface of the mounting frame opposite to each other left and right. The opposite surfaces of the two shaping grippers are both provided with shaping parts, and the shaping parts are semi-circular inner grooves. The gap between the two shaping grippers is the diaphragm shaping station; The diaphragm gripper near the diaphragm loading table is used to grip the connecting part of the diaphragm from the placement groove and place the diaphragm at the diaphragm shaping station; The diaphragm gripper away from the diaphragm loading table is used to grip the connecting part of the diaphragm that has been shaped between the two shaping grippers and place the diaphragm at the diaphragm installation station on the assembly line.

5. The diaphragm feeding mechanism of the pressure switch according to claim 1, wherein, The diaphragm flipping device includes a rotary cylinder, a connecting block, and the second suction cup; The rotary cylinder is mounted between the first suction cup and the third suction cup. The output end of the rotary cylinder extends horizontally to the right. The output end of the rotary cylinder is connected to the left end face of the connecting block. The rotary cylinder drives the connecting block to rotate around the output end of the rotary cylinder. The second suction cup is mounted on the top or bottom surface of the connecting block.

6. The diaphragm loading mechanism of the pressure switch according to claim 1, wherein The diaphragm sucking device includes a first guide rail plate, a first transverse guide rail, a first horizontal sliding frame, a first longitudinal guide rail, a first vertical sliding frame, a first transverse pushing cylinder, a first lifting cylinder, and the first suction cup; The first guide rail plate is erected near the rear of the rotary disk. The first transverse guide rail is mounted on the right end face of the first guide rail plate. The first transverse guide rail and the first horizontal sliding frame extend along the front-rear direction respectively; The first transverse pushing cylinder is mounted at the rear end of the first guide rail plate. The front end of the first guide rail plate extends under the rotary disk; The first horizontal sliding frame is slidably mounted on the first transverse guide rail. The output end of the first transverse pushing cylinder extends forward and is connected to the rear end face of the first horizontal sliding frame; The first transverse pushing cylinder pushes the first horizontal sliding frame to move back and forth along the first transverse guide rail; The first longitudinal guide rail is mounted on the right end face of the first horizontal sliding frame and extends along the up-down direction; The first vertical sliding frame is slidably mounted on the first longitudinal guide rail. The first lifting cylinder is mounted on the first horizontal sliding frame near the lower end of the first longitudinal guide rail; The output end of the first lifting cylinder extends upward and is connected to the first vertical sliding frame. The first suction cup faces upward and is erected and mounted on the top of the first vertical sliding frame. The suction cup end of the first suction cup is exposed upward outside the top surface of the first vertical sliding frame. The first lifting cylinder drives the first vertical sliding frame and the first suction cup to lift synchronously along the first longitudinal guide rail.

7. The diaphragm loading mechanism of the pressure switch according to claim 1, characterized in that, The diaphragm transfer device includes a second guide rail plate, a second transverse guide rail, a second horizontal sliding frame, a second longitudinal guide rail, a second vertical sliding frame, a second transverse pushing cylinder, a second lifting cylinder, and the third suction cup; The second guide rail plate is erected near the second suction cup. The second horizontal guide rail is installed on the right end face of the second guide rail plate. The second horizontal guide rail and the second guide rail plate extend along the front-rear direction respectively. The second horizontal pushing cylinder is erected at the rear end of the second guide rail plate. The front end of the second horizontal guide rail is located in front of the second suction cup. The second horizontal sliding frame is slidably erected on the second horizontal guide rail. The output end of the second horizontal pushing cylinder extends forward and is connected to the rear end face of the second horizontal sliding frame. The second horizontal pushing cylinder pushes the second horizontal sliding frame to move back and forth along the second horizontal guide rail. The second longitudinal guide rail is installed on the right end face of the second horizontal sliding frame. The second longitudinal guide rail extends along the up-down direction. The second vertical sliding frame is slidably erected on the second longitudinal guide rail. The second lifting cylinder is erected near the upper end of the second longitudinal guide rail on the second horizontal sliding frame. The output end of the second lifting cylinder extends downward and is connected to the second vertical sliding frame. The third suction cup is erected downward and installed at the bottom of the second vertical sliding frame. The suction cup end of the third suction cup is exposed downward outside the bottom surface of the second vertical sliding frame. The second lifting cylinder drives the second vertical sliding frame and the third suction cup to lift synchronously along the second longitudinal guide rail.

8. The diaphragm loading mechanism of the pressure switch according to claim 1, wherein, The diaphragm output device further includes a rotating motor. The rotating motor is installed below the rotating disc. The output end of the rotating motor extends upward and is connected to the center of the rotating disc. The rotating motor drives the rotating disc and multiple diaphragm cartridges to horizontally rotate around the center of the rotating disc. Multiple diaphragm cartridges are arranged equidistantly along the circumferential edge of the rotating disc.

9. The diaphragm loading mechanism of the pressure switch according to claim 4, characterized in that The diaphragm loading device includes a third guide rail plate, a guide rail pair, a third horizontal pushing cylinder, a connecting plate, two third horizontal sliding frames, two third longitudinal guide rails, two third vertical sliding frames, two third lifting cylinders and two diaphragm grippers. The third guide rail plate is erected behind the diaphragm loading table. The guide rail pair is installed on the left end face of the third guide rail plate. The guide rail pair extends back and forth along the front surface of the third guide rail plate. The third horizontal pushing cylinder is erected at the rear end of the third guide rail plate. The front end of the third guide rail plate extends to the front of the diaphragm loading table. Two third horizontal sliding frames are spaced apart front and back and are slidably erected on the guide rail pair. The connecting plate extends back and forth. The front and rear ends of the connecting plate are respectively connected to the two third horizontal sliding frames. The output end of the third horizontal pushing cylinder extends backward and is connected to the front end face of the front third horizontal sliding frame. The third horizontal pushing cylinder pushes the two third horizontal sliding frames and the connecting plate to move back and forth along the guide rail pair. The two third longitudinal guide rails are respectively installed on the right end faces of the two third horizontal sliding frames, and the third longitudinal guide rails extend in the up and down direction; the third vertical sliding frame is slidably mounted on the corresponding third longitudinal guide rail, and the two third lifting cylinders are mounted on the corresponding third horizontal sliding frames near the upper ends of the corresponding third longitudinal guide rails; the output ends of the third lifting cylinders extend downward and are connected to the third vertical sliding frames, the diaphragm gripper is vertically and downwardly installed at the bottom of the third vertical sliding frame, and the gripper end of the diaphragm gripper is downwardly exposed from the bottom surface of the third vertical sliding frame, and the third lifting cylinders drive the corresponding third vertical sliding frames and the diaphragm grippers to synchronously lift along the third longitudinal guide rails.

10. The diaphragm feeding mechanism of the pressure switch according to claim 5, characterized in that, The first suction cup, the second suction cup and the third suction cup are all vacuum suction cups; The first suction cup and the third suction cup are respectively communicated with the suction ports of an external vacuum pump through connecting pipes; The second suction cup is a sunken circular groove, the second suction cup is used for sucking the side of the diaphragm away from the connecting portion, a connecting hole is provided on the side of the connecting block away from the rotary cylinder, the connecting hole penetrates through the inside of the connecting block inwardly and is communicated with the second suction cup, and the connecting hole is communicated with the suction port of an external vacuum pump outwardly.

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