Valve welding machine with automatic feeding and clamping functions

Abstract

The utility model discloses a valve welding machine capable of automatically feeding and clamping, which is used for welding a valve component on a product to be welded and comprises a feeding and clamping mechanism, the valve component is conveyed to a material piece of a positioning and transferring assembly through vibration, the material piece is fixed at the top end of a cam shaft, and the cam shaft is rotatably sleeved on a lifting plate. A groove cam with a limiting groove is arranged on the machine frame, a cam on the cam shaft is installed in the limiting groove and rotates along with lifting of the cam shaft, the positioning transfer assembly comprises a welding die, the welding die is elastically arranged on a rotary cam base, the lower end of the welding die is connected with a suction cup, and the rotary cam base is installed on a roller sliding rail in a sliding mode in the horizontal direction and limited. The roller slide rail is driven to rotate after being decelerated by a first motor mounted on the rack; a liftable ground pressure head is suspended on a bottom plate of the following welding valve mechanism, and a wave generating mold is arranged below the bottom plate. According to the device, the welding die is pressed downwards through the pressing head to press the valve component adsorbed by the suction cup to a to-be-welded product, and the valve component is supported by the wave emitting die to complete welding operation.

Description

Technical Field

[0001] The utility model relates to the technical field of local improvement design of packaging machinery, in particular to an automatic loading and clamping valve welding machine. Background Art

[0002] A valve welding machine is a device that welds valves onto products, such as medical masks and valved products. Existing valve welding equipment on the market primarily uses rotary cylinders for rotation and clamping cylinders for component replacement. These cylinders are prone to wear at high speeds, produce high noise levels, suffer from poor stability, and are inefficient. This leads to limited production capacity and prevents efficient, fully automated production.

[0003] In the prior art, the patent with announcement number CN112829312A discloses a mask welding valve machine, including a welding valve mold, an ultrasonic generator and a third pushing device. The welding valve mold is located below the ultrasonic generator, and the third pushing device can push the welding valve mold up and down. During use, when the mask machine passes the cloth, the cloth passes through the space between the ultrasonic generator and the welding valve mold, and the breathing valve is placed in the welding valve mold. Then the third pushing device is started to drive the welding valve mold to move upward until the breathing valve in the welding valve mold contacts the cloth through ultrasonic welding. After welding, the third pushing device moves downward, and the welding valve mold falls downward and separates from the breathing valve. In this way, the breathing valve can be installed when the mask machine is passing the cloth through this device, which does not affect the other steps of the mask machine in producing masks, greatly improving the production efficiency of the masks.

[0004] Patent No. CN112848515B discloses a valve welding machine, which includes a machine platform, a transfer device, a bag loading device, a bag transfer and valve loading device, and a valve welding device. The machine platform is provided with a valve storage channel. The transfer device is provided on the machine platform. The transfer device is provided with a mounting arm. The mounting arm can rotate relative to the machine platform to have a first position and a second position. The bag loading device is provided on the machine platform. The bag loading device can store packaging bags and can be placed one by one on the mounting arm located in the first position. The bag transfer and valve loading device is provided on the machine platform. The bag transfer and valve loading device can remove the packaging bags on the mounting arm located in the second position and can transfer the exhaust valve in the valve storage channel to the above-mentioned mounting arm. The valve welding device is provided on the machine platform. The valve welding device can weld the packaging bag on the mounting arm located in the first position and the exhaust valve. Through the above structure, the transfer device, bag loading device, bag transfer and valve loading device, and valve welding device are all provided on the machine platform, so as to improve the efficiency of installing the exhaust valve.

[0005] In the above technical solution, the valve component is directly powered by cylinders, which requires a large number of cylinders and makes the overall linkage control of the mechanism more complicated.

[0006] In order to solve one of the above problems, the present application provides a valve welding machine with automatic loading and clamping. Utility Model Content

[0007] The purpose of the utility model is to solve the problems existing in the prior art, and to propose an automatic loading and clamping valve welding machine. During the loading process, the material is loaded, rotated and positioned by a groove cam, and then the suction cup of the welding mold is accurately sucked away and rotated to the welding position. The welding mold is pressed down by the pressure head to press the valve component adsorbed by the suction cup onto the product to be welded and supported by the wave-generating mold to complete the welding operation.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a valve welding machine with automatic feeding and clamping, which is used for welding valve components on products to be welded, including a feeding and clamping mechanism, the feeding and clamping mechanism including a vibrating feeding assembly and a positioning transfer assembly, the vibrating feeding assembly conveys the valve components to the material part of the positioning transfer assembly by vibration, the material part is fixed to the top end of the camshaft, the camshaft is rotatably sleeved on the lifting plate, the lifting plate is connected to the first driving member installed on the frame, the frame is provided with a groove cam with a limiting groove, the cam on the camshaft is installed in the limiting groove and rotates as the camshaft rises and falls, the positioning transfer assembly also includes a welding mold, the welding mold is elastically provided on the rotating cam seat and the lower end is connected to the suction cup, the rotating cam seat is horizontally slidably mounted on the roller slide and is limited, and the roller slide is driven to rotate by the first motor installed on the frame after deceleration;

[0009] The follower welding valve mechanism includes a base plate arranged on the frame, a liftable pressure head is suspended on the base plate, and a wave-generating mold is provided under the base plate. The pressure head presses down the welding mold to press the valve component adsorbed by the suction cup onto the product to be welded and is supported by the wave-generating mold to complete the welding operation.

[0010] Furthermore, the frame as described above is provided with an installation cavity for accommodating the positioning transfer component, a vertical plate is fixed in the installation cavity, a first driving member and a first motor are respectively provided on both sides of the vertical plate, and the material part is located below the rotation track of the suction cup of the welding mold.

[0011] Furthermore, the first driving member as described above is located below the lifting plate, and the groove cam is a cylindrical member and accommodates a camshaft.

[0012] Furthermore, the camshaft as described above is connected to the lifting plate via a bearing, a cam is provided in the radial direction of the camshaft, and the axial direction of the camshaft is the vertical direction.

[0013] Furthermore, the rotating cam seat as described above includes two symmetrically arranged Y-shaped plates, each of which is symmetrically provided with two welding molds. The rotating cam seat is horizontally slidably mounted on the roller slide rail and is limited by a limiting ring.

[0014] Furthermore, the welding mold as described above is set through the Y-shaped plate and is equipped with a spring, the rotating cam seat is fixed on the slider, the slider is slidably set on the roller slide rail, the arc surface of the rotating cam seat is located in the limit ring, and the limit ring is fixed on the vertical plate and the frame.

[0015] Furthermore, the roller slide rail as described above is installed in the strip groove on the special-shaped disk, the special-shaped disk is fixed on the slewing bearing, and the slewing bearing is driven after being decelerated by the first motor; the vibration feeding assembly includes a vibration disk, the conveying channel of the vibration disk is connected to the direct vibration channel of the direct vibrator, and the end of the direct vibration channel is aligned with the material piece.

[0016] Furthermore, the pressure head as described above is connected to a second driving member, which is mounted on the top plate. The top plate and the bottom plate are connected via a support tube, in which an adjusting screw is provided.

[0017] Furthermore, an opening for accommodating the wave-generating mold is processed on the bottom plate as described above, and a transducer is connected below the wave-generating mold. An adjusting screw is provided on the mounting plate of the transducer.

[0018] Furthermore, the base plate as described above is slidably connected to the first slide rail, the first slide rail is fixed on the working panel of the frame, the working panel is slidably connected to the second slide rail, and the second slide rail is fixed on the support plate of the frame. The first driving member and the second driving member are both lifting cylinders, oil cylinders or electric cylinders, and the suction cup is connected to an external air pipe through an electromagnetic valve, and the air pipe is connected to a vacuum pumping device.

[0019] Compared with the existing technology, the beneficial effects of the present invention are: during the loading process, the material is loaded, rotated and positioned through the groove cam, and then the suction cup of the welding mold is accurately sucked away and rotated to the welding position. The welding mold is pressed down by the pressure head to press the valve component adsorbed by the suction cup onto the product to be welded and supported by the wave-generating mold to complete the welding operation.

[0020] The feeding and clamping mechanism and the follow-up welding valve mechanism adopt a groove cam mechanism and a motor transmission mechanism, which are highly efficient. The welding valve mold adopts a circular design, which can complete four product welding valves per rotation, which is highly efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 for Figure 1 Explosion diagram of

[0023] Figure 3 This is an exploded schematic diagram of the loading and clamping mechanism of the utility model;

[0024] Figure 4 for Figure 3 Schematic diagram of the positioning transfer component in;

[0025] Figure 5 for Figure 4 Explosion diagram of

[0026] Figure 6 This is an explosion diagram of the follower welding valve mechanism of the present utility model;

[0027] Figure 7 This is an exploded schematic diagram of the frame of the present invention.

[0028] In the figure: 1. Loading and clamping mechanism; 10. Vibrating plate; 11. Direct vibration channel; 12. Material part; 13. Limiting ring; 14. Roller slide; 15. Welding mold; 16. Camshaft; 17. Grooved cam; 18. Lifting cylinder; 2. Follower welding valve mechanism; 20. First motor; 21. Transducer; 22. Base plate; 23. Electric cylinder; 24. Adjusting screw; 25. Wave-generating mold; 26. Press head; 27. First slide rail; 3. Frame; 30. Support plate; 31. Working panel; 32. Second slide rail; 7. Suction cup; 8. Rotating cam seat; 9. Guide rod. DETAILED DESCRIPTION

[0029] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "fixed", "installed", "connected", "set", etc. should be understood in a broad sense. For example, when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "installed on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, 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 a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the two elements.

[0031] For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example 1

[0034] Reference Figure 1-7 As shown, the utility model is an automatic loading and clamping valve welding machine, which is used to weld valve components on products to be welded. The products to be welded are conveyed in the form of an assembly line, and the valve components are continuously conveyed and transferred in pairs to the welding points for valve welding operations. The valve welding machine includes a loading and clamping mechanism 1 and a follower welding valve mechanism 2, wherein the loading and clamping mechanism 1 includes a vibrating loading component and a positioning transfer component. The vibrating loading component conveys the valve components to the material part 12 of the positioning transfer component by vibration. The material part 12 is fixed to the top of the camshaft 16. The camshaft 16 is rotatably mounted on the lifting plate. The lifting plate is connected to the first driving member installed on the frame 3. The first driving member lifts or resets the lifting plate to change the height, driving the camshaft 16 to rise or fall. A groove cam 17 with a limiting groove is provided on the frame 3. The cam on the camshaft 16 is installed in the limiting groove and moves along with the camshaft 1 6 is lifted and rotated, thereby adjusting the rotation angle of the material part 12 while it is lifted and lowered. The positioning transfer assembly also includes a welding mold 15, which is elastically arranged on the rotating cam seat 8 and connected to the suction cup 7 at the lower end. The welding mold 15 is lifted and lowered by an external force on the rotating cam seat 8 and can be reset. The suction cup 7 is used to adsorb the valve component located on the material part 12. The rotating cam seat 8 is horizontally slidably mounted on the roller slide 14 and is limited. The roller slide 14 is driven to rotate after the first motor 20 installed on the frame 3 is decelerated; the follower welding valve mechanism 2 includes a bottom plate 22 arranged on the frame 3, and a liftable pressure head 26 is suspended on the bottom plate 22. A wave-generating mold 25 is provided under the bottom plate 22. The pressure head 26 presses down the welding mold 15 to press the valve component adsorbed by the suction cup 7 onto the product to be welded and is supported by the wave-generating mold 25 to complete the welding operation.

[0035] Example 2

[0036] Reference Figure 1-7 As shown, based on the technical solution of embodiment 1, a valve welding machine with automatic loading and clamping, referring to Figure 2-5As shown, for the specific structural design of the feeding and clamping mechanism 1, the vibration feeding assembly includes a vibration plate 10, the conveying channel of the vibration plate 10 is connected to the direct vibration channel 11 of the direct vibrator, and the end of the direct vibration channel 11 is aligned with the material piece 12. In order to improve production efficiency, two vibration disks 10 and corresponding straight vibrators are equipped. The straight vibrators are installed on the frame 3. Accordingly, two material parts 12 are required. Each material part 12 is fixed to a camshaft 16. A cam is provided in the radial direction of the camshaft 16. The cam is rotatably arranged in the limit groove of the groove cam 17. The groove cam 17 is a cylindrical part and accommodates the camshaft 16. The axial direction of the camshaft 16 is the vertical direction. The shape of the limit groove is designed to machine two parallel and staggered vertical grooves on the cylinder body of the cylindrical part and connect them through a circular arc transition. When the cam moves up and down with the camshaft 16, the cam moves up and down along the limit groove and drives the camshaft 16 to rotate. The angle of rotation of the camshaft 16 depends on the shape design of the limit groove. The specific parameter design meets the difference between the angle of the conveying valve component of the direct vibration channel 11 and the position angle limited by the suction cup 7 on the welding mold 15 to adsorb the valve component.

[0037] As for the composition structure of rack 3, Figure 7 As shown, the frame 3 includes a support plate 30 supported by a column, a second slide rail 32 is fixed on the support plate 30, and a working panel 31 is slidably provided on the second slide rail 32. Both the support plate 30 and the working panel 31 are provided with a mounting cavity for accommodating the positioning transfer component and an opening for accommodating the wave-generating mold 25. The working panel 31 is also provided with a guide wheel to facilitate the transportation of the product to be welded along the guide wheel in the form of an assembly line over the bottom plate. Above the product to be welded is the valve component sucked by the suction cup on the welding mold 15, and below the product to be welded is the wave-generating mold 25. When the alignment operation is completed, the pressure head 26 presses down the welding mold 15 to press the valve component sucked by the suction cup 7 onto the product to be welded and supported by the wave-generating mold 25 to complete the welding operation. Furthermore, a vertical plate is fixed at the mounting cavity of the support plate 30, referring to Figure 3-5 As shown, with regard to the specific structural design of the positioning transfer assembly, a first driving member and a first motor 20 are respectively provided on both sides of the vertical plate. The first driving member is located below the lifting plate. A through hole for embedding a bearing is processed on the lifting plate. A camshaft 16 is installed in the bearing so that it can rotate. In addition, a step position is provided on the camshaft 16, which can be stuck on the lifting plate. As the height of the lifting plate changes, the height of the camshaft 16 rises and falls accordingly. The material part 12 is located below the rotation track of the suction cup 7 of the welding mold 15, so that the welding mold 15 can absorb the valve components on the material part 12 during the rotation process.

[0038] Furthermore, to facilitate simultaneous positioning and suction of two material pieces 12, the rotating cam seat 8 includes two symmetrically arranged Y-shaped plates, each symmetrically provided with two welding molds 15. The welding molds 15 extend through the Y-shaped plates and are fitted with springs. Specifically, holes are provided in the Y-shaped plates to accommodate the welding molds 15 and their return springs. Furthermore, to ensure accurate guidance of the welding molds 15, the Y-shaped plates are also fitted with guide rods 9, with guide sleeves fitted over the guide rods and welding molds 15, respectively.

[0039] Furthermore, the rotating cam seat 8 is horizontally slidably mounted on a roller slide 14 and limited by a limiting ring 13. Each rotating cam seat 8 is fixed on a slider, and each slider is slidably mounted between two roller slides 14. Specifically, two roller slides 14 arranged side by side and opposite to each other are mounted in a strip groove on a special-shaped disk and cooperate with a slider. The special-shaped disk is fixed on a slewing bearing, and the slewing bearing is driven by a first motor 20 after being decelerated. The arc surface of the rotating cam seat 8 is located in the limiting ring 13, and the limiting ring 13 is fixed to the vertical plate and the frame 3. Figure 5 As shown, the special-shaped disk is a disk with offset strip grooves, and one side of the disk parallel to the strip groove is cut off and one end of the strip groove is shortened. The slewing support bearing is fixed in the mounting cavity of the support plate 30, and its upper end is connected to the special-shaped disk to provide rotational power, and its lower end is connected to the reducer, and the output shaft of the reducer is connected to the output shaft of the first motor 20. The reducer and the first motor 20 are designed to be connected as an integral whole, which will not be described in detail here.

[0040] Example 3

[0041] Reference Figure 1-7 As shown, based on the technical solution of embodiment 2, a valve welding machine with automatic loading and clamping, referring to Figure 6As shown, regarding the specific structural design of the follower welding valve mechanism 2, the pressure head 26 is connected to a second drive member, which is mounted on the top plate. The top plate and bottom plate 22 are connected by four support tubes, each of which houses an adjustment screw 24. Furthermore, the bottom plate 22 is machined with an opening to accommodate a wave-generating mold 25. The bottom of the wave-generating mold 25 is connected to the transducer 21. Both the wave-generating mold 25 and the transducer 21 are mounted on a mounting plate, which is equipped with four adjustment screws 24. In addition, the base plate 22 is slidably connected to the first slide rail 27, and the first slide rail 27 is fixed on the working panel 31 of the frame 3. The base plate 22 can slide relative to the working panel 31 to adjust the horizontal position. The working panel 31 is slidably connected to the second slide rail 32, and the second slide rail 32 is fixed on the support plate 30 of the frame 3. The working panel 31 can slide relative to the support plate 30 to adjust the horizontal position. The first driving member and the second driving member are common linear motion components such as the lifting cylinder 18, oil cylinder or electric cylinder 23, which are not described in detail here. The suction cup 7 is connected to an air pipe through an electromagnetic valve, and the air pipe is connected to a vacuum pumping device. The electromagnetic valve and the vacuum pumping device are common components and are not described in detail here.

[0042] In the device of the present invention, the assembly and matching relationship of the various components involved, the straight vibrator, motor, welding mold 15, transducer 21, wave-generating mold 25, cylinder and supporting control software, etc. are existing technologies or materials. The relevant technical personnel can purchase them directly from the market or customize them according to the required product models and specifications.

[0043] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity or industrial electricity, and the main controller can be a conventional known device such as a computer that plays a control role.

[0044] The above description is only a preferred specific embodiment of the present invention. Common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above embodiment, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. Any person skilled in the art who is familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the scope of protection of the present invention.

Claims

1. A valve welding machine with automatic loading and clamping, used for welding valve components to products to be welded, characterized in that: The invention comprises a feeding and clamping mechanism (1), wherein the feeding and clamping mechanism (1) comprises a vibrating feeding assembly and a positioning transfer assembly, wherein the vibrating feeding assembly is fed to a material part (12) of the positioning transfer assembly through a vibrating conveying valve component, wherein the material part (12) is fixed to the top of a cam shaft (16), and the cam shaft (16) is rotatably mounted on a lifting plate, and the lifting plate is connected to a first driving member mounted on a frame (3), and a slot cam (17) with a limiting slot is provided on the frame (3), and the cam on the cam shaft (16) is mounted in the limiting slot and rotates as the cam shaft (16) rises and falls, and the positioning transfer assembly further comprises a welding mold (15), and the welding mold (15) is elastically arranged on a rotating cam seat (8) and the lower end is connected to a suction cup (7), and the rotating cam seat (8) is horizontally slidably mounted on a roller slide rail (14) and is limited, and the roller slide rail (14) is driven to rotate by a first motor (20) mounted on the frame (3) after deceleration; A follower welding valve mechanism (2) includes a base plate (22) arranged on a frame (3), a liftable pressure head (26) suspended on the base plate (22), a wave-generating mold (25) provided under the base plate (22), and the pressure head (26) presses down the welding mold (15) to press the valve component adsorbed by the suction cup (7) onto the product to be welded and supported by the wave-generating mold (25) to complete the welding operation.

2. The automatic loading and clamping valve welding machine according to claim 1, characterized in that: The frame (3) is provided with an installation cavity for accommodating the positioning transfer component, a vertical plate is fixed in the installation cavity, a first driving member and a first motor (20) are respectively provided on both sides of the vertical plate, and the material part (12) is located below the rotation track of the suction cup (7) of the welding mold (15).

3. The automatic loading and clamping valve welding machine according to claim 2, characterized in that: The first driving member is located below the lifting plate, and the groove cam (17) is a cylindrical member and contains a cam shaft (16).

4. The automatic loading and clamping valve welding machine according to claim 3, characterized in that: The camshaft (16) is connected to the lifting plate via a bearing, a cam is provided in the radial direction of the camshaft (16), and the axial direction of the camshaft (16) is the vertical direction.

5. The automatic loading and clamping valve welding machine according to claim 2, characterized in that: The rotating cam seat (8) comprises two symmetrically arranged Y-shaped plates, each of which is symmetrically provided with two welding dies (15). The rotating cam seat (8) is horizontally slidably mounted on a roller slide rail (14) and is limited by a limiting ring (13).

6. The automatic loading and clamping valve welding machine according to claim 5, characterized in that: The welding mold (15) is set through the Y-shaped plate and is covered with a spring. The rotating cam seat (8) is fixed on the slider. The slider is slidably set on the roller slide rail (14). The arc surface of the rotating cam seat (8) is located in the limiting ring (13). The limiting ring (13) is fixed on the vertical plate and the frame (3).

7. The automatic loading and clamping valve welding machine according to claim 6, characterized in that: The roller slide rail (14) is installed in the strip groove on the special-shaped disk, the special-shaped disk is fixed on the slewing bearing, and the slewing bearing is driven after being decelerated by the first motor (20); the vibration feeding assembly includes a vibration disk (10), the conveying channel of the vibration disk (10) is connected to the straight vibration channel (11) of the straight vibrator, and the end of the straight vibration channel (11) is aligned with the material piece (12).

8. The automatic loading and clamping valve welding machine according to any one of claims 2 to 7, characterized in that: The pressure head (26) is connected to a second driving member, which is mounted on the top plate. The top plate and the bottom plate (22) are connected via a support tube, in which an adjusting screw (24) is arranged.

9. The automatic loading and clamping valve welding machine according to claim 8, characterized in that: The bottom plate (22) is processed with an opening for accommodating a wave-generating mold (25). The bottom of the wave-generating mold (25) is connected to a transducer (21), and an adjusting screw (24) is provided on the mounting plate of the transducer (21).

10. The automatic loading and clamping valve welding machine according to claim 9, characterized in that: The base plate (22) is slidably connected to the first slide rail (27), the first slide rail (27) is fixed on the working panel (31) of the frame (3), the working panel (31) is slidably connected to the second slide rail (32), the second slide rail (32) is fixed on the support plate (30) of the frame (3), the first driving member and the second driving member are both lifting cylinders (18), oil cylinders or electric cylinders (23), the suction cup (7) is connected to an air pipe through an electromagnetic valve, and the air pipe is connected to a vacuum pumping device.

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