Automatic glue sprayer and using method thereof

Abstract

The invention discloses an automatic glue sprayer and a use method thereof, and the automatic glue sprayer has the following beneficial effects: (1) a transverse beating device is additionally arranged on the basis of an existing automatic glue sprayer and is arranged between a first rack and a drying device; workpieces such as shoe soles and the like can be transversely beaten through the transverse beating device so that the workpieces can enter the drying device in the transverse direction, that is, the machine body length of the drying device can be reduced, the overall production and processing line length of shoes can be reduced, and the length requirement for a production and processing site is lowered. (2) an adsorption mechanism is additionally arranged, the adsorption mechanism is arranged on the first rack and close to the edge side of the first conveying device, and atomized glue generated around the shoe sole on the first conveying device can be adsorbed through the adsorption mechanism; therefore, the atomized glue is well prevented from remaining on the first conveying device and other positions or diffusing, and normal work of the automatic glue sprayer is well guaranteed.

Description

Technical Field

[0001] This invention relates to the field of adhesive spraying technology, specifically to an automatic adhesive spraying machine and its usage method. Background Technology

[0002] In the production and processing of shoes and other products, it is necessary to spray glue on the edges of the soles and other areas to bond them to the uppers. Currently, automatic glue spraying machines are used for the glue spraying operation on the soles. These automatic glue spraying machines typically include main devices such as a conveying device, a nozzle device, and a drying device. When the automatic glue spraying machine is in operation, it first sprays glue onto the soles on the conveying device through the nozzle device, and then dries the soles through the drying device to activate the glue components, thereby improving the bonding effect between the soles and uppers in subsequent operations.

[0003] However, the aforementioned automatic glue spraying machine has at least two technical problems: First, because the conveyor device is usually narrow, the shoe soles are typically placed vertically on the conveyor for transport. Furthermore, the shoe soles also enter the drying device vertically. For continuous production lines, this vertical placement of the shoe soles requires a correspondingly longer drying device. Since the conveyor device already occupies a considerable length, the overall production line length is long, placing high demands on the length of the production area. Second, due to factors such as excessively high ambient temperature, low glue viscosity, or improper spraying angle, atomized glue can easily form around the shoe soles after spraying. Existing automatic glue spraying machines cannot effectively handle this atomized glue, leading to excessive residue or diffusion of atomized glue on the conveyor and other locations, which can affect the normal operation of the automatic glue spraying machine. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an automatic glue spraying machine and its usage method, which can solve the aforementioned technical problems.

[0005] To solve the above-mentioned technical problems, the present invention provides the following first technical solution: an automatic glue spraying machine, including a first frame, a nozzle device, a first conveying device, and a drying device. The nozzle device and the first conveying device are spaced apart on the first frame, and the drying device is located in front of the first frame. The automatic glue spraying machine also includes a horizontal blocking device and an adsorption mechanism. The horizontal blocking device is located between the first frame and the drying device, and the adsorption mechanism is located on the first frame and is located on the side of the first conveying device.

[0006] Preferably, the horizontal alignment device includes a second frame, a second conveying device, a pre-horizontal alignment device, a straightening horizontal alignment device, a first driving device, and a second driving device. The second conveying device is disposed on the second frame. The pre-horizontal alignment device is disposed on the second frame and located above the second conveying device, which can move left and right. The first driving device is connected to the pre-horizontal alignment device. The straightening horizontal alignment device is disposed on the second frame and located above the second conveying device, which can swing back and forth. The second driving device is connected to the straightening horizontal alignment device, which is located in front of the pre-horizontal alignment device.

[0007] Preferably, the pre-horizontal device includes a slider, a first mounting plate, a second mounting plate, a connector, a first push rod, and a second push rod. A transverse slide rail is provided on the second frame, and the slider is movably mounted on the transverse slide rail. The top of the first mounting plate is connected to the slider. The second mounting plate includes a vertical part and a bent part connected together. The bottom of the first mounting plate is connected to the vertical part. The connector is mounted on the first mounting plate. A first driving device is mounted on the second frame and connected to the connector. The top of the first push rod is located at the bent part, and the top of the second push rod is located at the vertical part. The bottoms of both the first and second push rods are located above the second conveying device.

[0008] Preferably, the straightening and leveling device includes a third mounting plate, a long strip plate, and two side limiting plates. The third mounting plate has an upper end, a lower end, and a front end that are triangularly distributed. The long strip plate is arranged horizontally. The two side limiting plates are respectively arranged at both ends of the long strip plate. The upper end of the third mounting plate is hinged to the second frame. The front end of the third mounting plate is hinged to the second driving device. The front side of the long strip plate is fixedly connected to the lower end of the third mounting plate.

[0009] Preferably, the adsorption mechanism includes an adsorption cavity, a connecting tube, and an adsorption device. The adsorption cavity is located on the side near the first conveying device, and the length direction of the adsorption cavity is parallel to the length direction of the first conveying device. An adsorption port is provided on the side of the adsorption cavity near the first conveying device. An adsorption chamber is formed inside the adsorption cavity, and the adsorption port communicates with the adsorption chamber. The adsorption device is communicated with the adsorption chamber through the connecting tube.

[0010] Preferably, the adsorption chamber includes a first adsorption chamber, a second adsorption chamber, and a third adsorption chamber arranged at intervals. The number of first conveying devices is two, and the two first conveying devices are arranged at intervals. The first adsorption chamber is arranged on one side close to one of the first conveying devices, the second adsorption chamber is arranged on one side close to the other first conveying device, and the third adsorption chamber is arranged on the other side close to both the first and the other first conveying devices.

[0011] Preferably, the automatic glue spraying machine further includes a nozzle cleaning mechanism, which includes a support base, a third drive device, a rotating shaft, and a cleaning component. The support base is mounted on the first frame and located near the nozzle device. The third drive device is mounted on the support base and connected to the rotating shaft. The cleaning component is mounted on the rotating shaft.

[0012] Preferably, the automatic glue spraying machine further includes a nozzle calibration mechanism, which includes a base and a ejector pin. The base is located near the nozzle device, the bottom of the ejector pin is located on the top surface of the base, the top of the ejector pin forms an ejector pin point, the top surface of the base is horizontal, and the central axis of the ejector pin is vertical relative to the top surface of the base.

[0013] Preferably, the nozzle calibration mechanism further includes a spring, several support shafts, and a connecting shaft. The support shafts are disposed on the top surface of the base, and the connecting shafts are disposed on the support shafts. The bottom of the ejector pin is provided with several first connecting holes, and the bottom of the ejector pin is disposed on the connecting shaft through the first connecting holes. The connecting shaft is a sliding shaft, and the bottom of the ejector pin is slidably disposed on the connecting shaft through the first connecting holes. The top surface of the base is provided with a second connecting hole, and the bottom of the ejector pin is provided with a third connecting hole. The bottom end of the spring is connected to the second connecting hole, and the top end of the spring is connected to the third connecting hole.

[0014] To solve the above-mentioned technical problems, the present invention provides the following second technical solution: a method of using an automatic glue spraying machine as described in the first technical solution above, comprising: a first conveying device conveying a workpiece placed in a vertical direction; a nozzle device spraying glue onto the workpiece on the first conveying device; after the glue spraying operation is completed, an adsorption mechanism adsorbs the atomized glue generated around the workpiece; further, the first conveying device continues to convey the workpiece forward to a horizontal turning device; the horizontal turning device horizontally turns the workpiece so that the workpiece enters the drying device in a horizontal direction; and the drying device performs a drying operation on the workpiece.

[0015] Compared with the prior art, the present invention provides an automatic glue spraying machine and its usage method, which has the following beneficial effects: (1) The present invention adds a horizontal bending device to the existing automatic glue spraying machine. The horizontal bending device is set between the first frame and the drying device. The horizontal bending device can bend the workpieces such as shoe soles so that the workpieces enter the drying device in a horizontal direction. That is, the present invention can reduce the length of the drying device, thereby reducing the overall length of the shoe production line and reducing the length requirements of the production site. (2) The present invention also adds an adsorption mechanism to the existing automatic glue spraying machine. The adsorption mechanism is set on the first frame and close to the side of the first conveying device. The adsorption mechanism can adsorb the atomized glue generated around the shoe soles on the first conveying device, so as to better avoid the atomized glue remaining on the first conveying device or spreading, thereby better ensuring the normal operation of the automatic glue spraying machine. Attached Figure Description

[0016] Figure 1 This is a perspective view of an automatic glue spraying machine according to the present invention; Figure 2 This is a perspective view of the first frame, nozzle device, first conveying device, adsorption mechanism, nozzle cleaning mechanism, and nozzle calibration mechanism of the present invention. Figure 3 This is a perspective view of the nozzle cleaning mechanism and nozzle calibration mechanism of the present invention; Figure 4 This is a perspective view of the horizontal straightening device and the drying device of the present invention; Figure 5 This is a first perspective view of the horizontal turning device of the present invention; Figure 6 This is a second perspective view of the horizontal turning device of the present invention; Figure 7 This is a front view of the first driving device and the pre-horizontal device of the present invention; Figure 8 This is a perspective view of the first driving device and the pre-crossing device of the present invention; Figure 9 This is a perspective view of the second mounting plate of the present invention; Figure 10 This is a side view of the second driving device and the straightening and leveling device of the present invention; Figure 11 This is a perspective view of the second driving device and the straightening and leveling device of the present invention; Figure 12 A top view of the shoe sole in a vertical direction; Figure 13 A top view showing the sole in a basically horizontal position; Figure 14 A top view of the second conveying device and the shoe sole in a transverse direction; Figure 15 This is a first perspective view of the adsorption mechanism of the present invention; Figure 16 This is a second perspective view of the adsorption mechanism of the present invention; Figure 17 This is a third perspective view of the adsorption mechanism of the present invention; Figure 18 This is a perspective view of the first adsorption cavity of the present invention; Figure 19 A perspective view of the nozzle assembly; Figure 20 This is a first perspective view of the nozzle cleaning mechanism of the present invention; Figure 21 This is a second perspective view of the nozzle cleaning mechanism of the present invention; Figure 22This is a third perspective view of the nozzle cleaning mechanism of the present invention; Figure 23 This is a perspective view of the nozzle calibration mechanism of the present invention; Figure 24 This is a first perspective view of the ejector pin component of the present invention; Figure 25 This is a second perspective view of the ejector pin component of the present invention; Figure 26 This is a perspective view of the base of the present invention.

[0017] The components labeled in the diagram are: 1 First frame, 2 Nozzle device, 3 First conveying device, 4 Drying device, 5 Horizontal alignment device, 6 Adsorption mechanism, 7 Nozzle cleaning mechanism, 8 Nozzle calibration mechanism, 9 Shoe sole, 21 Robotic arm base, 22 Robotic arm, 23 Tilting arm, 24 End arm, 25 Nozzle, 51 Second frame, 52 Second conveying device, 53 Pre-horizontal alignment device, 54 Straightening and horizontal alignment device, 55 First drive device, 56 Second drive device, 57 Slider, 58 Second mounting plate, 59 Vertical part, 510 Bending part, 511 Connector, 512 First push rod, 513 Second push rod, 514 Third mounting plate, 515 Long strip plate, 516 Side limiting plate, 517 protective plate, 518 transverse slide rail, 61 first adsorption chamber, 62 second adsorption chamber, 63 third adsorption chamber, 64 connecting tube, 65 adsorption port, 68 first connecting tube, 69 second connecting tube, 610 third connecting tube, 611 fourth connecting tube, 612 fifth connecting tube, 613 sixth connecting tube, 71 support base, 72 third drive device, 73 rotating shaft, 74 cleaning component, 76 first cleaning box, 77 sleeve, 78 protective cover, 79 second cleaning box, 81 base, 82 ejector pin component, 83 ejector pin point, 84 support shaft, 85 connecting shaft, 86 first connecting hole, 87 spring, 88 third connecting hole. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The present invention provides an automatic glue spraying machine, including a first frame 1, a nozzle device 2, a first conveying device 3, and a drying device 4. The nozzle device 2 and the first conveying device 3 are spaced apart on the first frame 1, and the drying device 4 is located in front of the first frame 1. The automatic glue spraying machine of the present invention also includes a horizontal blocking device 5 and an adsorption mechanism 6. The horizontal blocking device 5 is located between the first frame 1 and the drying device 4, and the adsorption mechanism 6 is located on the first frame 1 and is located near the side of the first conveying device 3.

[0020] The method of using the above-mentioned automatic glue spraying machine of the present invention includes: a first conveying device 3 conveys a workpiece placed in a vertical direction, and a nozzle device 2 sprays glue onto the workpiece on the first conveying device 3; after the glue spraying operation is completed, an adsorption mechanism 6 adsorbs the atomized glue generated around the workpiece; further, the first conveying device 3 continues to convey the workpiece forward to a horizontal turning device 5; the horizontal turning device 5 turns the workpiece horizontally so that the workpiece enters the drying device 4 in a horizontal direction; the drying device 4 performs a drying operation on the workpiece.

[0021] Specifically, the aforementioned workpiece can be a shoe sole 9. Adhesive is sprayed onto the edges and other areas of the shoe sole 9 using a nozzle device 2, allowing the shoe sole 9 to be subsequently bonded to the upper. A drying device 4 dries the shoe sole 9, softening and activating the resin and rubber components in the adhesive, forming a highly viscous activated layer, thereby improving the bonding effect between the shoe sole 9 and the upper in subsequent processes. Furthermore, the drying process removes any residual moisture on the surface of the shoe sole or in the adhesive, better preventing problems such as bubbles and separation after the shoe sole and upper are bonded. The drying temperature can be 40-60℃, set according to specific needs, without further limitations. In addition, this invention can also be applied to the processing of other types of workpieces.

[0022] The aforementioned nozzle device 2 may include a robotic arm and a nozzle 25. The robotic arm is used to move the nozzle 25, and the nozzle 25 is used to spray glue. Specifically, the robotic arm may include components such as a robotic arm base 21, a robotic arm 22, a flipping arm 23, and an end effector arm 24. The robotic arm 22 is connected to the robotic arm base 21. The flipping arm 23 is mounted on the robotic arm 22 and can be flipped back and forth. The end effector arm 24 is mounted on the flipping arm 23 and can be rotated horizontally. The nozzle 25 is mounted on the end effector arm 24. The robotic arm 22 enables the nozzle 25 to move laterally and vertically. The flipping arm 23 allows the tilting state of the end effector arm 24 and the nozzle 25 to be adjusted. The position and direction of the nozzle 25 can be adjusted by the robotic arm 22, the flipping arm 23, and the end effector arm 24 to perform glue spraying operations. The nozzle device 2 and the drying device 4 of the present invention are both prior art, and their specific structures and working principles will not be described in detail here.

[0023] Preferably, the above-mentioned horizontal alignment device 5 includes a second frame 51, a second conveying device 52, a pre-horizontal alignment device 53, a horizontal alignment device 54, a first driving device 55, and a second driving device 56. The second conveying device 52 is disposed on the second frame 51. The pre-horizontal alignment device 53 is disposed on the second frame 51 and located above the second conveying device 52, which can move left and right. The first driving device 55 is connected to the pre-horizontal alignment device 53. The horizontal alignment device 54 is disposed on the second frame 51 and located above the second conveying device 52, which can swing back and forth. The second driving device 56 is connected to the horizontal alignment device 54, which is located in front of the pre-horizontal alignment device 53.

[0024] It is understood that the horizontal movement device 5 of the present invention is located near the rear end of the drying device 4, and the drying device 4 itself is also equipped with a conveyor belt or similar conveying device. The conveying direction of the second conveying device 52 is from back to front. The workpieces such as shoe soles 9 are conveyed to the conveyor belt of the drying device 4 through the second conveying device 52. In the initial state, the shoe soles 9 are placed vertically on the first conveying device 3. The first conveying device 3 conveys the vertically oriented shoe soles 9 to the second conveying device 52, such as... Figure 12 The shoe sole 9 shown is placed vertically on the second conveyor 52; the first drive device 55 is used to drive the pre-horizontal device 53 to move left and right, and the second drive device 56 is used to drive the straightening and horizontal device 54 to swing back and forth. The pre-horizontal device 53 is used to pre-process the shoe sole 9 on the second conveyor 52 to be horizontal, and the straightening and horizontal device 54 is used to straighten the horizontally horizontally of the shoe sole 9, so that the vertically oriented shoe sole 9 on the second conveyor 52 is horizontally oriented, so that the shoe sole 9 can enter the drying device 4 in a horizontal direction for drying.

[0025] In this embodiment, the pre-horizontal device 53 includes a slider 57, a first mounting plate, a second mounting plate 58, a connector 511, a first push rod 512, and a second push rod 513. A transverse slide rail 518 is provided on the second frame 51. The slider 57 is movably mounted on the transverse slide rail 518. The top end of the first mounting plate is connected to the slider 57. The second mounting plate 58 includes a vertical portion 59 and a bent portion 510 connected together. The bent portion 510 has its rear end of the vertical portion 59 facing the left side of the second frame 51. Alternatively, it can extend to the right, with the bottom end of the first mounting plate connected to the vertical part 59. A connector 511 is mounted on the first mounting plate. The first drive device 55 is mounted on the second frame 51 and connected to the connector 511. The top end of the first push rod 512 is located at the bending part 510, and the top end of the second push rod 513 is located at the vertical part 59. The bottom ends of both the first push rod 512 and the second push rod 513 are located above the second conveying device 52, and the second push rod 513 and the first push rod 512 are staggered. The first drive device 55 includes a first telescopic rod, which is horizontally positioned and connected to the connector 511.

[0026] The working principle of the pre-crossing device 53 in this embodiment is as follows: Figure 12 As shown, initially, the sole 9 is placed vertically on the second conveyor 52, with the vertical direction (i.e., the length direction of the sole 9) parallel to the conveying direction of the second conveyor 52. The second conveyor 52 conveys the sole 9 from back to front. When the sole 9 passes the position of the pre-horizontal device 53, the conveying of the second conveyor 52 can be paused. At this time, the first telescopic rod of the first drive device 55 extends to drive the pre-horizontal device 53 to move to the right along the transverse slide rail 518, i.e., drive the first push rod 512 and the second push rod 513 to move to the right. The left and right directions correspond to the transverse sides of the second frame 51. During the movement of the pre-horizontal device 53, the first push rod 512, which is relatively to the right, first contacts the left side of the sole 9, causing the sole to gradually tilt to the right. As the pre-horizontal device 53 continues to move to the right, the second push rod 513 also contacts the left side of the sole, similarly causing the sole to tilt to the right. Finally, the pre-horizontal device 53 transforms the initially vertical sole 9 into a position as shown in the image. Figure 13 The image shows a basic horizontal state that is almost entirely or mostly horizontal.

[0027] In this embodiment, the aforementioned leveling and horizontalizing device 54 includes a third mounting plate 514, a long strip plate 515, and two side limiting plates 516. The third mounting plate 514 has an upper end, a lower end, and a front end arranged in a triangular pattern. The long strip plate 515 is arranged horizontally. The two side limiting plates 516 are respectively disposed at both ends of the long strip plate 515. The upper end of the third mounting plate 514 is hinged to the second frame 51, and the front end of the third mounting plate 514 is hinged to the second driving device 56. The front side of the long strip plate 515 is fixedly connected to the lower end of the third mounting plate 514. The second driving device 56 is disposed on the second frame 51 and includes a second telescopic rod. The second telescopic rod is arranged at an angle and is hinged to the front end of the third mounting plate 514.

[0028] The working principle of the straightening and lateralizing device 54 in this embodiment is as follows: After the sole 9 passes through the pre-lateralizing device 53, it changes to the above-mentioned basic lateral state. At this time, the second conveying device 52 continues to convey the sole 9 forward to transport the sole toward the straightening and lateralizing device 54; in addition, the second telescopic rod of the second driving device 56 extends to drive the third mounting plate 514 to swing backward, so that the long strip 515 is perpendicular to the second conveying device; when the sole 9 reaches the position of the straightening and lateralizing device 54, as Figure 14 As shown, the shoe sole, which is in a basically transverse state, is straightened by the blocking and limiting action of the long plate 515 and the side limiting plate 516, so that the shoe sole 9 is completely transverse, that is, the length direction of the shoe sole 9 is perpendicular to the conveying direction of the second conveying device. At this time, the transverse straightening operation of the shoe sole is completed, and the second driving device 56 drives the straightening and lateral straightening device 54 to reset. Afterwards, the second conveying device transfers the transversely oriented shoe sole 9 to the drying device 4 for drying.

[0029] The first drive device 55 and the second drive device 56 mentioned above can both be pneumatic cylinders, or they can be hydraulic cylinders, electric cylinders, etc., without much restriction here. The first conveying device 3 and the second conveying device 52 can be conveyor belts. In addition, preferably, the top perimeter of the first frame 1 and the second frame 51 can be provided with protective plates 517 to improve the protective performance of the equipment.

[0030] Preferably, the adsorption mechanism 6 includes an adsorption cavity, a connecting tube 64, and an adsorption device (not shown). The adsorption cavity is located on the side near the first conveying device 3. The length direction of the adsorption cavity is parallel to the length direction of the first conveying device 3. An adsorption port 65 is provided on the side of the adsorption cavity near the first conveying device 3. An adsorption chamber is formed inside the adsorption cavity. The adsorption port 65 is connected to the adsorption chamber. The adsorption device is connected to the adsorption chamber through the connecting tube 64.

[0031] The working principle of the adsorption mechanism 6 of the present invention is as follows: After the shoe sole 9 on the first conveying device 3 completes the above-mentioned glue spraying operation, the adsorption device is activated. The adsorption device generates a negative pressure in the adsorption chamber of the adsorption cavity, and further adsorbs the atomized glue generated around the shoe sole 9 on the first conveying device 3 through the adsorption port 65 of the adsorption cavity, and further discharges it out of the automatic glue spraying machine through the adsorption device, so as to better avoid the atomized glue remaining on the first conveying device 3 or other positions or spreading. The above-mentioned adsorption device can be a vacuum pump, which evacuates the adsorption chamber to generate a negative pressure. The vacuum pump is existing technology, and its specific structure and working principle will not be described in detail here. In addition, other adsorption devices of existing technology can also be used as the adsorption device, and no restrictions are placed here.

[0032] Preferably, the adsorption mechanism 6 may further include a filtration device disposed in the connecting pipe 64. The filtration device filters the atomized adhesive adsorbed in the adsorption chamber to prevent adhesive particles from affecting the use of the adsorption device. Specifically, the filtration device may include a filter screen and an activated carbon filter. The filter screen performs primary filtration of the atomized adhesive, intercepting larger liquid adhesive particles, while the activated carbon filter performs secondary filtration of the atomized adhesive, capturing fine adhesive mist particles. Alternatively, other types of filtration devices may also be used. The filtration device may be disposed at the inlet, outlet, or other positions of the connecting pipe 64. Preferably, the filtration device is detachably disposed in the connecting pipe 64 to facilitate cleaning and replacement.

[0033] Furthermore, preferably, the adsorption cavity is provided with a plurality of the above-mentioned adsorption ports 65, and the plurality of adsorption ports 65 are distributed at intervals along the length direction of the adsorption cavity.

[0034] In this embodiment, the aforementioned adsorption chamber may include a first adsorption chamber 61, a second adsorption chamber 62, and a third adsorption chamber 63 arranged at intervals. There are two first conveying devices 3, spaced apart. The first adsorption chamber 61 is positioned near one of the first conveying devices 3, the second adsorption chamber 62 is positioned near the other first conveying device 3, and the third adsorption chamber 63 is positioned near both the other two first conveying devices. Further, the side of the first adsorption chamber 61 near one of the first conveying devices, i.e., the side with the adsorption port 65, is sloped, and the first adsorption chamber 61 has multiple adsorption ports 65. The side of the second adsorption chamber 62 near the other first conveying device is sloped, and the side of the third adsorption chamber 63 near both first conveying devices 3 is flat. This embodiment, through the aforementioned first adsorption chamber 61, second adsorption chamber 62, and third adsorption chamber 63, can adsorb from both sides of the two first conveying devices 3, increasing the adsorption range and achieving a better adsorption effect on the atomized adhesive. In addition, the number of the above-mentioned nozzle devices 2 can also be two, so as to realize dual-station operation through two first conveying devices 3 and two nozzle devices 2.

[0035] In this embodiment, the connecting tube body 64 specifically includes a first connecting tube 68, a second connecting tube 69, a third connecting tube 610, a fourth connecting tube 611, a fifth connecting tube 612, and a sixth connecting tube 613. One end of the first connecting tube 68 communicates with the interior of the first adsorption chamber 61, i.e., one end of the first connecting tube 68 communicates with the adsorption chamber of the first adsorption chamber 61. One end of the second connecting tube 69 communicates with the interior of the second adsorption chamber 62. One end of the third connecting tube 610 communicates with the interior of the third adsorption chamber 63. The other ends of the first connecting tube 68, the second connecting tube 69, and the third connecting tube 610 are all connected to the fourth connecting tube 611. The fourth connecting tube 611 is connected to the fifth connecting tube 612, and the fifth connecting tube 612 is connected to the adsorption device through the sixth connecting tube 613. There are two of each of the first connecting tube 68, the second connecting tube 69, the third connecting tube 610, and the fourth connecting tube 611. Of course, in other embodiments, the connecting tube body 64 can also be provided with other numbers of connecting tubes; this is not a limitation here.

[0036] Furthermore, preferably, the automatic glue spraying machine of the present invention may also include a nozzle cleaning mechanism 7. The nozzle cleaning mechanism 7 includes a support base 71, a third drive device 72, a rotating shaft 73, and a cleaning component 74. The support base 71 is disposed on the first frame 1 and is disposed near the nozzle device 2. The third drive device 72 is disposed on the support base 71 and is connected to the rotating shaft 73. The cleaning component 74 is disposed on the rotating shaft 73.

[0037] The working principle of the nozzle cleaning mechanism 7 of the present invention is as follows: after the nozzle device 2 completes the glue spraying operation, the rotating shaft 73 is driven to rotate by the third driving device 72. The rotating shaft 73 drives the cleaning component 74 to rotate. The nozzle 25 is driven to approach the cleaning component 74 by the robotic arm 22, the flipping arm 23, the end arm 24 and other robotic components. The remaining glue at the opening and other positions of the nozzle 25 is further cleaned by the rotating cleaning component 74. The position and direction of the nozzle 25 can be adjusted by the robotic arm to clean different positions of the nozzle 25.

[0038] Preferably, the nozzle cleaning mechanism 7 of this embodiment further includes a first cleaning box 76, which is disposed on the top of the support base 71. The third driving device 72 is disposed on the outer wall of the first cleaning box 76, and the cleaning component 74 is located inside the first cleaning box 76. Furthermore, preferably, the nozzle cleaning mechanism may also include a collection box. The bottom of the first cleaning box 76 has a collection port, the plane of which is lower than the bottom plane of the first cleaning box 76 for easy collection. The collection box is disposed below the first cleaning box 76, and the interior of the first cleaning box 76 is connected to the interior of the collection box through the collection port. In this way, the cleaning material after the cleaning component 74 cleans the nozzle 25 can be transferred to the collection box through the collection port for easy collection and processing. The collection box is preferably removably disposed at the bottom of the support base 71.

[0039] The nozzle cleaning mechanism of this embodiment may further include a sleeve 77, through which the cleaning element 74 is mounted on the rotating shaft 73; alternatively, the cleaning element 74 may be directly mounted on the rotating shaft 73. Preferably, there are multiple cleaning elements 74, which are spaced apart axially and circumferentially along the sleeve 77 to achieve a better cleaning effect. Specifically, the cleaning element 74 may be a brush, scraper, or similar material from the prior art, and no further limitations are imposed here. Furthermore, the third drive device 72 may be a motor or similar material from the prior art; preferably, a protective cover 78 is provided on the outer side of the third drive device 72.

[0040] Preferably, the nozzle cleaning mechanism of the present invention may further include a second cleaning box 79 and a spray head. The second cleaning box 79 is disposed adjacent to the first cleaning box 76, and the spray head is disposed in the second cleaning box 79. When it is necessary to clean the nozzle 25, the nozzle 25 can be moved to the second cleaning box 79 first, and a desiccant or the like can be sprayed onto the nozzle 25 through the spray head to dissolve the residual cured adhesive on the nozzle 25. Then, the nozzle 25 can be moved to the first cleaning box 76 to be cleaned by the cleaning member 74. In this way, the cleaning effect of residual adhesive on the nozzle 25 can be improved.

[0041] Furthermore, preferably, the automatic glue spraying machine of the present invention may further include a nozzle alignment mechanism 8. The nozzle alignment mechanism 8 includes a base 81 and an ejector pin 82. The base 81 is disposed near the nozzle device 2, the bottom of the ejector pin 82 is disposed on the top surface of the base 81, and the top of the ejector pin 82 forms an ejector pin point 83. The top surface of the base 81 is horizontal, and the central axis of the ejector pin 82 is vertical relative to the top surface of the base 81. Specifically, the base 81 may be disposed on the support base 71.

[0042] Under normal conditions, the central axis of the nozzle 25 and the central axis of the end arm 24 are parallel. However, after prolonged use, due to loosening of the connecting parts of the nozzle 25, the installation position of the nozzle 25 on the end arm 24 (robotic arm) may deviate to varying degrees, resulting in the central axis of the nozzle 25 not being parallel to the central axis of the end arm 24. This affects the spraying accuracy of the nozzle device 2. Therefore, this invention, by setting the nozzle correction mechanism 8, can detect whether the installation position of the nozzle 25 on the end arm 24 has deviated. Specifically, this can be achieved by adjusting the movement of the robotic arm 22. The movement positions the nozzle 25 above the ejector pin 82. The tilting arm 23 adjusts the end arm 24 to a vertical position. The robotic arm 22 then lowers the end arm 24 and nozzle 25 onto the ejector pin 82. The nozzle 25 has an opening at its bottom. The user observes whether the opening of the nozzle 25 aligns with the ejector pin point 83. If it does, the nozzle 25's installation position on the end arm 24 is normal and without deviation. If the opening of the nozzle 25 does not align with the ejector pin point 83, the nozzle 25's installation position on the end arm 24 is off-center, and the user can correct the nozzle 25's position. Alternatively, the robotic arm 22 and tilting arm 23 can be used to align the nozzle 25's opening with the ejector pin point 83, and the end arm 24 can be observed to be vertical. This method also detects whether the nozzle 25's installation position on the end arm 24 is off-center.

[0043] The size of the aforementioned ejector pin 83 can be slightly smaller than the opening size of the nozzle 25. Preferably, the bottom of the ejector pin 82 is detachably disposed on the top surface of the base 81, which facilitates the replacement of ejector pins 82 of different sizes, thereby better adapting to the detection of nozzles of different sizes.

[0044] In this embodiment, the nozzle calibration mechanism 8 may further include a spring 87, several support shafts 84, and a connecting shaft 85. The support shafts 84 are disposed on the top surface of the base 81, and the connecting shafts 85 are disposed on the support shafts 84. The bottom of the ejector pin 82 is provided with several first connecting holes 86, and the bottom of the ejector pin 82 is disposed on the connecting shaft 85 through the first connecting holes 86. The connecting shaft 85 is a sliding shaft, and the bottom of the ejector pin 82 is slidably disposed on the connecting shaft 85 through the first connecting holes 86. The top surface of the base 81 is provided with a second connecting hole, and the bottom of the ejector pin 82 is provided with a third connecting hole 88. The bottom end of the spring 87 is connected to the second connecting hole, and the top end of the spring 87 is connected to the third connecting hole 88. Specifically, the number of each of the support shafts 84, connecting shafts 85, and first connecting holes 86 is four. When the ejector pin 82 is squeezed by the nozzle 25, the spring 87 is compressed, and the ejector pin 82 slides relative to the connecting shaft 85 through the first connecting hole 86 to buffer the ejector pin 82; then the ejector pin 82 is reset under the action of the spring 87.

[0045] Specifically, in this embodiment, the bottom of the ejector pin 82 is a cube, and the four sides of the top of the ejector pin 82 are triangles, with the vertices of the four triangles forming ejector pin points 83. Of course, in other embodiments, the ejector pin 82 can also adopt other shapes, which are not limited here.

[0046] Compared with the prior art, the present invention provides an automatic glue spraying machine and its usage method, which has the following beneficial effects: (1) The present invention adds a horizontal bending device to the existing automatic glue spraying machine. The horizontal bending device is set between the first frame and the drying device. The horizontal bending device can bend the workpieces such as shoe soles so that the workpieces enter the drying device in a horizontal direction. That is, the present invention can reduce the length of the drying device, thereby reducing the overall length of the shoe production line and reducing the length requirements of the production site. (2) The present invention also adds an adsorption mechanism to the existing automatic glue spraying machine. The adsorption mechanism is set on the first frame and close to the side of the first conveying device. The adsorption mechanism can adsorb the atomized glue generated around the shoe soles on the first conveying device, so as to better avoid the atomized glue remaining on the first conveying device or spreading, thereby better ensuring the normal operation of the automatic glue spraying machine. (3) The present invention also includes a nozzle cleaning mechanism, which can clean the nozzle opening and other parts to remove residual glue on the nozzle, thereby better avoiding problems such as nozzle opening blockage and ensuring the normal use of the nozzle device. (4) In addition, the present invention also includes a nozzle calibration mechanism, which can detect whether the nozzle is deviated from its installation position on the robot arm, so as to calibrate the nozzle and better ensure the glue spraying accuracy of the nozzle device.

[0047] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic glue spraying machine, comprising a first frame, a nozzle device, a first conveying device, and a drying device, wherein the nozzle device and the first conveying device are spaced apart on the first frame, and the drying device is disposed in front of the first frame, characterized in that: The automatic glue spraying machine also includes a horizontal bending device and an adsorption mechanism. The horizontal bending device is disposed between the first frame and the drying device, and the adsorption mechanism is disposed on the first frame and disposed on the side near the first conveying device.

2. The automatic glue spraying machine according to claim 1, characterized in that: The horizontal alignment device includes a second frame, a second conveying device, a pre-horizontal alignment device, a horizontal alignment device, a first driving device, and a second driving device. The second conveying device is disposed on the second frame. The pre-horizontal alignment device is movably disposed on the second frame and located above the second conveying device. The first driving device is connected to the pre-horizontal alignment device. The horizontal alignment device is swayable back and forth disposed on the second frame and located above the second conveying device. The second driving device is connected to the horizontal alignment device. The horizontal alignment device is located in front of the pre-horizontal alignment device.

3. The automatic glue spraying machine according to claim 2, characterized in that: The pre-horizontal device includes a slider, a first mounting plate, a second mounting plate, a connector, a first push rod, and a second push rod. A transverse slide rail is provided on the second frame, and the slider is movably mounted on the transverse slide rail. The top end of the first mounting plate is connected to the slider. The second mounting plate includes a vertical part and a bent part connected together. The bottom end of the first mounting plate is connected to the vertical part. The connector is mounted on the first mounting plate. The first driving device is mounted on the second frame and connected to the connector. The top end of the first push rod is located at the bent part, and the top end of the second push rod is located at the vertical part. The bottom ends of both the first push rod and the second push rod are located above the second conveying device.

4. The automatic glue spraying machine according to claim 2, characterized in that: The straightening and leveling device includes a third mounting plate, a long strip plate, and two side limiting plates. The third mounting plate has an upper end, a lower end, and a front end that are triangularly distributed. The long strip plate is arranged horizontally. The two side limiting plates are respectively arranged at both ends of the long strip plate. The upper end of the third mounting plate is hinged to the second frame. The front end of the third mounting plate is hinged to the second driving device. The front side of the long strip plate is fixedly connected to the lower end of the third mounting plate.

5. The automatic glue spraying machine according to claim 1, characterized in that: The adsorption mechanism includes an adsorption cavity, a connecting tube, and an adsorption device. The adsorption cavity is located on the side near the first conveying device, and the length direction of the adsorption cavity is parallel to the length direction of the first conveying device. An adsorption port is provided on the side of the adsorption cavity near the first conveying device. An adsorption chamber is formed inside the adsorption cavity, and the adsorption port communicates with the adsorption chamber. The adsorption device is connected to the adsorption chamber through the connecting tube.

6. The automatic glue spraying machine according to claim 5, characterized in that: The adsorption chamber includes a first adsorption chamber, a second adsorption chamber, and a third adsorption chamber arranged at intervals. There are two first conveying devices, which are arranged at intervals. The first adsorption chamber is located on one side of one of the first conveying devices, the second adsorption chamber is located on one side of the other first conveying device, and the third adsorption chamber is located on the other side of both the first and second first conveying devices.

7. The automatic glue spraying machine according to claim 1, characterized in that: It also includes a nozzle cleaning mechanism, which includes a support base, a third drive device, a rotating shaft, and a cleaning component. The support base is disposed on the first frame and close to the nozzle device. The third drive device is disposed on the support base and connected to the rotating shaft. The cleaning component is disposed on the rotating shaft.

8. The automatic glue spraying machine according to claim 1, characterized in that: It also includes a nozzle alignment mechanism, which includes a base and a ejector pin. The base is located close to the nozzle device, the bottom of the ejector pin is located on the top surface of the base, the top of the ejector pin forms an ejector pin point, the top surface of the base is horizontal, and the central axis of the ejector pin is vertical relative to the top surface of the base.

9. The automatic glue spraying machine according to claim 8, characterized in that: The nozzle correction mechanism further includes a spring, several support shafts, and a connecting shaft. The support shafts are disposed on the top surface of the base, and the connecting shafts are disposed on the support shafts. The bottom of the ejector pin is provided with several first connecting holes, and the bottom of the ejector pin is disposed on the connecting shaft through the first connecting holes. The connecting shaft is a sliding shaft, and the bottom of the ejector pin is slidably disposed on the connecting shaft through the first connecting holes. The top surface of the base is provided with a second connecting hole, and the bottom of the ejector pin is provided with a third connecting hole. The bottom end of the spring is connected to the second connecting hole, and the top end of the spring is connected to the third connecting hole.

10. A method of using an automatic glue spraying machine as described in any one of claims 1-9, characterized in that, include: The first conveying device conveys a workpiece placed vertically, and the nozzle device sprays adhesive onto the workpiece on the first conveying device. After the adhesive spraying is completed, the adsorption mechanism adsorbs the atomized adhesive generated around the workpiece. Further, the first conveying device continues to convey the workpiece forward to the horizontal turning device. The horizontal turning device turns the workpiece horizontally so that it enters the drying device in a horizontal direction. The drying device performs a drying operation on the workpiece.

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