Glue pumping mechanism and glue feeding equipment

Abstract

The utility model belongs to the technical field of industrial pouring sealant, and provides a glue pumping mechanism and glue supply equipment, the glue pumping mechanism comprises a buffer part, a pressure part, a glue inlet runner, a first one-way valve, a glue outlet runner and a second one-way valve, under the action of the pressure part, glue in a glue barrel can be conveyed to a buffer cavity, and the glue in the glue barrel can be conveyed to the buffer cavity; when the glue in the glue barrel is completely extracted and the glue barrel is replaced, the interior of the glue barrel is subjected to air extraction treatment through the air extraction mechanism, and in the process, under the action of the pressure part, the glue in the buffer cavity can be conveyed into glue injection equipment through the glue outlet runner. By means of the arrangement, shutdown operation does not need to be carried out when the glue barrel is replaced and air exhaust treatment is carried out on the interior of the glue barrel, and therefore it can be guaranteed that glue is continuously conveyed to the glue injection equipment, and the working efficiency of the glue injection equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial potting adhesives, in particular to a glue pumping mechanism and a glue feeding device. Background Art

[0002] In existing industrial production, it is often necessary to use glue injection equipment to inject some colloidal fluids onto the working surface or into some small gaps. During the operation of the glue injection equipment, an additional glue feeding device is required to ensure that the glue injection equipment can continue to work.

[0003] The existing glue feeding device includes a plunger pump, a lifting device and a pressing plate. The plunger pump is arranged at the lifting end of the lifting device. The lifting device is configured to control the lifting of the plunger pump. The pressing plate is fixed on the plunger pump. Under the action of the lifting device, the plunger pump is inserted into the glue bucket, and the pressing plate continuously presses on the glue surface. Through the pressure of the pressing plate and the reciprocating movement of the plunger pump, the glue is transported to the glue injection device through the feeding pipeline. When the glue in a glue bucket is completely pumped out, it is necessary to stop the glue injection work of the glue injection equipment, and then replace the glue bucket. Also, since gas is often mixed in the glue, if the gas is transported to the glue injection equipment along with the glue, it is likely to affect the glue injection quality of the glue injection equipment. Therefore, after the glue bucket is replaced, it is also necessary to perform a degassing treatment on the glue in the glue bucket, which takes a lot of time and thus reduces the working efficiency of the glue injection equipment.

[0004] Therefore, the above problems need to be solved urgently. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a glue pumping mechanism and a glue feeding device, so as to continuously supply glue to the glue injection equipment, thereby improving the working efficiency of the glue injection equipment.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A glue pumping mechanism for transporting the glue inside a glue bucket to a glue injection equipment, the glue pumping mechanism includes:

[0008] A buffer part, inside which a buffer cavity is arranged;

[0009] A pressure part, which is arranged in the buffer cavity and is configured to provide a positive pressure or negative pressure environment to the buffer cavity;

[0010] A glue inlet flow channel, the two ends of which are respectively communicated with the inside of the glue bucket and the buffer cavity, and the glue inlet flow channel is used for transporting glue to the buffer cavity when the inside of the buffer cavity is in a negative pressure state;

[0011] A first one-way valve, which is arranged in the glue feeding channel to convey glue to the buffer cavity unidirectionally;

[0012] A glue discharging channel, which is communicated with the buffer cavity, and is used for outputting the glue in the buffer cavity when the buffer cavity is in a positive pressure state;

[0013] A second one-way valve, which is arranged in the glue discharging channel to output the glue in the buffer cavity unidirectionally.

[0014] Preferably, the pressure part includes:

[0015] A piston, which is slidably arranged in the buffer cavity, and the piston divides the buffer cavity into a material storage area and a power area. The glue feeding channel and the glue discharging channel are both communicated with the material storage area;

[0016] A driving part, which is arranged in the power area and is configured to drive the piston to move reciprocally.

[0017] Preferably, the glue pumping mechanism further includes:

[0018] Two magnetic switches, which are arranged in the buffer part at intervals, and the two magnetic switches are respectively arranged opposite to the starting position and the ending position of the piston. The two magnetic switches are electrically connected to the driving part;

[0019] A magnetic part, which is arranged on the piston, and the magnetic part can move with the piston to trigger the two magnetic switches respectively.

[0020] A glue feeding device, including:

[0021] Two glue pumping mechanisms as described above. When a positive pressure is provided to the corresponding buffer cavity by one of the pressure parts, a negative pressure is provided to the corresponding buffer cavity by the other pressure part;

[0022] A pressure plate, on which a discharge port is arranged. The discharge port is communicated with the glue feeding channel. The pressure plate is arranged inside the glue bucket, and the pressure plate is shaped to fit the inner wall of the glue bucket. The pressure plate can continuously apply pressure to the surface of the glue;

[0023] An air extraction mechanism, the air extraction end of which is communicated with the area between the pressure plate and the glue, and is configured to extract the gas between the pressure plate and the glue.

[0024] Preferably, the glue feeding device further includes:

[0025] A connecting seat is provided on the outer sidewall of the glue feeding channel and above the pressing plate. An exhaust port is provided on the connecting seat, and the exhaust port is communicated with the suction end of the air extraction mechanism;

[0026] A suction cup is provided at the exhaust port to suck the pressing plate when the pressing plate applies pressure to the surface of the glue. The exhaust port is communicated with the suction cup, and the suction cup is communicated with the exhaust holes on the pressing plate.

[0027] Preferably, the glue feeding device further includes a closing component, which is provided at the exhaust port and is configured to block or open the exhaust holes.

[0028] Preferably, the closing component includes:

[0029] An air joint is provided at the exhaust port. An air flow channel is provided inside the air joint, and an air extraction port and an air inlet are provided on the air joint;

[0030] A blowing component is communicated with the air inlet and is configured to convey gas to the air inlet;

[0031] A guide rod is slidably arranged in the air flow channel, and the guide rod divides the air flow channel into an air extraction cavity and an air inlet cavity. The air inlet is communicated with the air inlet cavity, and the air extraction port is communicated with the air extraction cavity; the guide rod can block the exhaust holes when the blowing component conveys gas to the air inlet;

[0032] A tension spring is provided inside the air inlet cavity, and two ends of the tension spring are respectively connected to the guide rod and the inner wall of the air inlet cavity to pull the guide rod when the blowing component stops conveying gas to the air inlet, thereby opening the exhaust holes.

[0033] Preferably, the glue feeding device further includes:

[0034] A support seat;

[0035] A pull-out plate is slidably arranged on the support seat, and the pull-out plate is configured to carry the glue bucket;

[0036] A positioning part is provided on the top of the pull-out plate and is configured to position the glue bucket.

[0037] Preferably, the glue feeding device further includes a proximity switch, which is provided on the support seat and at the sliding end of the pull-out plate.

[0038] Preferably, the glue feeding device further includes a lifting device, and the glue extraction mechanism is arranged at the lifting end of the lifting device.

[0039] Advantages of the present utility model:

[0040] The present utility model provides a glue extraction mechanism and a glue feeding device. Under the action of a pressure part, the glue inside the glue bucket can be transported to a buffer cavity. When the glue in the glue bucket is completely extracted, the glue bucket is replaced, and the inside of the glue bucket is evacuated by an air extraction mechanism. During this process, under the action of the pressure part, the glue in the buffer cavity can be transported to a glue injection device through a glue outlet channel. With this arrangement, there is no need to stop the machine when replacing the glue bucket and evacuating the inside of the glue bucket, thus ensuring continuous glue supply to the glue injection device and improving the working efficiency of the glue injection device. Description of the Drawings

[0041] Figure 1 is a schematic structural diagram of the glue feeding device proposed in an embodiment of the present utility model;

[0042] Figure 2 is a schematic connection diagram of the glue extraction mechanism, the pressure plate and the connecting seat in an embodiment of the present utility model;

[0043] Figure 3 is Figure 2 a sectional view taken along line A-A in;

[0044] Figure 4 is Figure 2 a sectional view taken along line B-B in;

[0045] Figure 5 is a schematic structural diagram when the pulling plate is pulled out in an embodiment of the present utility model;

[0046] Figure 6 is a schematic structural diagram when the pulling plate is reset in an embodiment of the present utility model.

[0047] In the figure:

[0048] 100, glue bucket;

[0049] 1, glue extraction mechanism; 11, buffer part; 12, pressure part; 121, piston; 122, driving part; 13, glue inlet channel; 14, first one-way valve; 15, glue outlet channel; 16, second one-way valve;

[0050] 2, lifting device; 21, mounting plate; 22, hydraulic cylinder;

[0051] 3, pressure plate; 31, base; 32, baffle;

[0052] 4, connecting seat; 5, suction cup;

[0053] 6. Sealing assembly; 61. Air joint; 62. Guide rod; 63. Tension spring;

[0054] 7. Support base; 8. Drawer plate. Detailed implementation manner

[0055] Before explaining any implementation manner of the present application in detail, it should be understood that the present application is not limited to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0056] In the present application, the term "comprising", "including", "having" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element.

[0057] In the present application, the term "and / or" is a relationship describing associated objects, indicating that three relationships may exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump may represent: the sole existence of a centrifugal vortex magnetic pump, the simultaneous existence of a centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump, and the sole existence of a centrifugal vortex magnetic pump, these three situations. Additionally, in the present application, the character " / " generally represents an "and / or" relationship between the associated objects before and after.

[0058] In the present application, the terms "connect", "combine", "couple", "mount" may be direct connection, combination, coupling or mounting, or may be indirect connection, combination, coupling or mounting. Among them, by way of example, direct connection means that two parts or components are connected together without the need for an intermediate member, and indirect connection means that two parts or components are respectively connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connect" and "couple" are not limited to physical or mechanical connection or coupling, and may include electrical connection or coupling.

[0059] In this application, those of ordinary skill in the art will understand that relative terms used in connection with quantities or conditions (e.g., "about", "approximately", "substantially", etc.) are intended to include the recited value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances resulting from manufacturing, assembly, use, etc. associated with a particular value. Such terms should also be considered to disclose ranges defined by the absolute values of two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values that do not employ relative terms should also be disclosed as specific values having tolerances. In addition, "substantially" in expressing relative angular positional relationships (e.g., substantially parallel, substantially perpendicular) may refer to plus or minus a certain number of degrees (e.g., 1 degree, 5 degrees, 10 degrees or more) from the indicated angle.

[0060] In this application, those of ordinary skill in the art will understand that the functions performed by components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by parts can also be performed by one part, one component, or a combination of multiple parts.

[0061] In this application, the orientation terms such as "upper", "lower", "left", "right", "front", "rear", etc. are described based on the orientation and positional relationship shown in the drawings, and should not be construed as a limitation on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element. It should also be understood that orientation terms such as the upper side, lower side, left side, right side, front side, rear side, etc. not only represent the positive orientation, but can also be understood as the side orientation. For example, the lower side can include directly below, lower left, lower right, lower front, and lower rear, etc.

[0062] Currently, during the working process of the glue injection device, it is necessary to replace the glue bucket after the glue has been extracted. However, this replacement process requires a shutdown operation. In addition, after the glue bucket is replaced, it is also necessary to remove air bubbles from the glue, which consumes a large amount of time and thus reduces the working efficiency of the glue injection device. For this reason, in this embodiment, a glue extraction mechanism is proposed, which can cache the glue to continuously supply glue to the glue injection device when replacing the glue bucket and when removing air bubbles from the glue, thereby ensuring the continuity of the glue supply from the glue supply device to the glue injection device.

[0063] Specifically, please refer to Figures 1 to 6, the glue extraction mechanism 1 includes a buffer part 11, a pressure part 12, a glue inlet channel 13, a first one-way valve 14, a glue outlet channel 15 and a second one-way valve 16. A buffer cavity is arranged inside the buffer part 11; the pressure part 12 is arranged in the buffer cavity, and the pressure part 12 is configured to provide a positive pressure or negative pressure environment inside the buffer cavity; both ends of the glue inlet channel 13 are respectively communicated with the inside of the glue bucket and the buffer cavity, and the glue inlet channel 13 is used for conveying glue to the buffer cavity when the inside of the buffer cavity is in a negative pressure state; the first one-way valve 14 is arranged in the glue inlet channel 13 to convey glue to the buffer cavity unidirectionally; the glue outlet channel 15 is communicated with the buffer cavity, and the glue outlet channel 15 is used for outputting the glue in the buffer cavity when the buffer cavity is in a positive pressure state; the second one-way valve 16 is arranged in the glue outlet channel 15 to output the glue in the buffer cavity unidirectionally.

[0064] In practical applications, as Figure 2 with Figure 4 shown by the arrow direction in the figure, when injecting glue into the glue injection device, under the action of the pressure part 12, the glue inside the glue bucket can be first conveyed to the buffer cavity. When the glue in the glue bucket is completely extracted, the glue bucket is replaced, and the inside of the glue bucket is evacuated by the air extraction mechanism. During this process, under the action of the pressure part 12, the glue in the buffer cavity can be conveyed to the glue injection device through the glue outlet channel 15. With such a setting, it is not necessary to stop the machine when replacing the glue bucket and evacuating the inside of the glue bucket, so that the glue can be continuously conveyed to the glue injection device, thereby improving the working efficiency of the glue injection device.

[0065] Specifically, the pressure part 12 includes a piston 121 and a driving part 122. The piston 121 is slidably arranged in the buffer cavity, and the piston 121 divides the buffer cavity into a material storage area and a power area. Both the glue inlet channel 13 and the glue outlet channel 15 are communicated with the material storage area; the driving part 122 is arranged in the power area, and the driving part 122 is configured to drive the piston 121 to reciprocate. It can be understood that the buffer part 11 is a cylinder body, and the piston 121 is slidably arranged inside the cylinder body, so as to provide a positive pressure or negative pressure environment inside the material storage area. When the material storage area is in a negative pressure state, glue can be extracted into the material storage area. When the material storage area is in a positive pressure state, the glue in the material storage area can be conveyed to the glue injection device. The driving part 122 is preferably a linear driving component such as a cylinder, and no specific limitation is made here.

[0066] In some other feasible embodiments, the pressure part 12 can also provide a negative pressure environment to the material storage area through an air extraction structure. When the air extraction structure extracts the gas in the buffer cavity, glue can be extracted into the material storage area. Correspondingly, a positive pressure environment is provided to the material storage area through an air inflation structure. When the air extraction structure conveys gas into the buffer cavity, the pressure in the material storage area increases, so as to be able to push the glue to move in the glue outlet channel 15.

[0067] In this embodiment, the glue feeding device further includes two magnetic switches and a magnetic part. The two magnetic switches are arranged at intervals in the buffer part 11, and the two magnetic switches are respectively arranged opposite to the starting position and the ending position of the piston 121. The two magnetic switches are electrically connected to the driving part 122; the magnetic part is arranged on the piston 121, and the magnetic part can move with the piston 121 to trigger the two magnetic switches respectively. It can be understood that when the piston 121 moves to the initial position or the ending position, it can trigger the corresponding magnetic switch, so that the magnetic switch sends a signal to the driving part 122. After receiving the signal, the driving part 122 can change the internal pressure environment of the material storage area.

[0068] Since gas is often mixed in the glue, if the gas is transported to the glue injection device along with the glue, it is likely to affect the glue injection quality of the glue injection device. For this reason, a glue supply device is also proposed in this embodiment. It includes the above-mentioned glue extraction mechanism 1, the pressure plate 3 and the air extraction mechanism. An outlet is arranged on the pressure plate 3, and the outlet is communicated with the glue inlet channel 13. The pressure plate 3 is arranged inside the glue bucket, and the pressure plate is shaped to fit the inner wall of the glue bucket. The pressure plate 3 can continuously apply pressure to the surface of the glue; the air extraction end of the air extraction mechanism is communicated with the area between the pressure plate 3 and the glue, and is configured to extract the gas between the pressure plate 3 and the glue. In practical applications, after the glue extraction mechanism extracts the glue inside the glue bucket into the buffer cavity, the glue bucket starts to be replaced. After the replacement is completed, the pressure plate is placed inside the glue bucket to form a sealed space between the pressure plate and the glue. Under the action of the air extraction mechanism, the gas between the pressure plate and the glue can be extracted, so that the air bubbles in the glue can be removed. During the process of replacing the glue bucket and removing the air bubbles, under the action of the pressure part, the glue in the buffer cavity can be transported to the glue injection device through the glue outlet channel. With such a setting, there is no need to stop the machine when replacing the glue bucket and performing air extraction treatment on the inside of the glue bucket, so that it can ensure continuous supply of glue to the glue injection device, thereby improving the working efficiency of the glue injection device.

[0069] To further improve the feeding efficiency to the glue injection device, in this embodiment, two glue extraction mechanisms 1 are provided. When one of the pressure parts 12 provides positive pressure to the corresponding buffer cavity, the other pressure part 12 provides negative pressure to the corresponding buffer cavity. It can be understood that when one of the glue extraction mechanisms 1 extracts the glue from the glue bucket, the other glue extraction mechanism 2 transports the glue in its buffer cavity to the glue injection device. With such a setting, it can be further ensured that the glue feeding device can continuously supply glue to the glue injection device.

[0070] Due to the high viscosity of the glue in the glue bucket 100, glue is likely to remain at the bottom of the pressure plate 3, and the waste on the pressure plate 3 needs to be cleaned regularly, which increases the workload of the staff. In addition, if there is residue during waste cleaning, it is likely to cause blockage of the pipeline during glue supply by the glue supply device, further increasing the workload of the staff. Therefore, in this embodiment, the connection relationship between the glue inlet channel 13 and the pressure plate 3 is changed, and it is set as a consumable at the bottom of the glue inlet channel 13, thus avoiding the need for staff to clean the pressure plate 3.

[0071] Specifically, the glue supply device further includes a connecting seat 4 and a suction cup 5. The connecting seat 4 is arranged on the outer side wall of the glue inlet channel 13 and above the pressure plate 3. An exhaust port is provided on the connecting seat 4, and the exhaust port is communicated with the suction end of the air extraction mechanism; the suction cup 5 is arranged at the exhaust port to be able to suck the pressure plate 3 when the pressure plate 3 applies pressure to the surface of the glue, and the exhaust port is communicated with the suction cup 5, and the suction cup 5 is communicated with the exhaust holes on the pressure plate 3. In practical applications, the lifting device 2 can drive the connecting seat 4 to move downward. During the movement, the suction cup 5 can be sucked to the pressure plate 3. When the glue in the glue bucket is extracted completely, the lifting device 2 rises, and the pressure plate 3 is separated from the suction cup 5 under the action of the remaining glue in the bucket, so that the pressure plate 3 remains in the glue bucket as a consumable, avoiding the need to clean the residual glue on the pressure plate 3 and reducing the workload of the staff.

[0072] To facilitate the extraction of the gas between the pressure plate 3 and the glue surface, in this embodiment, an exhaust port is provided on the connecting seat 4, the suction cup 5 is arranged at the exhaust port, and the exhaust port is communicated with the suction cup 5. Exhaust holes are provided on the pressure plate 3, and the exhaust holes are arranged opposite to the suction cup 5; the glue supply device further includes an air extraction mechanism, and the suction end of the air extraction mechanism is communicated with the exhaust port to extract the gas between the pressure plate 3 and the glue. In practical applications, under the action of the air extraction mechanism, the gas between the pressure plate 3 and the glue will enter the inside of the suction cup 5 through the exhaust holes and then be discharged through the exhaust port. It should be noted that the air extraction mechanism is preferably a vacuum extraction component in the prior art and will not be elaborated here.

[0073] To prevent the glue from being discharged from the exhaust port during the air extraction process, in this embodiment, before the air extraction mechanism extracts air, the space between the pressure plate 3 and the upper surface of the glue is in a sealed state, so that the pressure plate 3 can be resisted by the air pressure during the downward movement, avoiding contact between the pressure plate 3 and the glue and further preventing the glue from being discharged from the exhaust port.

[0074] Specifically, the glue feeding device further includes a sealing component 6, which is arranged at the exhaust port and is configured to block or open the exhaust hole. In practical applications, during the downward movement of the pressure plate 3, the sealing component 6 closes the exhaust hole, making the space between the pressure plate 3 and the upper surface of the glue in a sealed state. As the pressure plate 3 continues to move downward, the pressure between the pressure plate 3 and the glue will increase, which can resist the downward movement of the pressure plate 3. Subsequently, the component 6 will open the exhaust hole. Under the action of the air extraction mechanism, the gas between the pressure plate 3 and the glue can be extracted, thus completing the operation of removing air bubbles from the glue.

[0075] Further, the sealing component 6 includes an air connector 61, a blowing member, a guide rod 62 and a tension spring 63. The air connector 61 is arranged at the exhaust port. An air flow passage is provided inside the air connector 61, and an air extraction port and an air inlet are provided on the air connector 61; the blowing member is communicated with the air inlet and is configured to convey gas to the air inlet; the guide rod 62 is slidably arranged in the air flow passage, and the guide rod 62 divides the air flow passage into an air extraction chamber and an air inlet chamber. The air inlet is communicated with the air inlet chamber, and the air extraction port is communicated with the air extraction chamber; the guide rod 62 can block the exhaust hole when the blowing member conveys gas to the air inlet; the tension spring 63 is arranged in the air inlet chamber, and both ends of the tension spring 63 are respectively connected with the guide rod 62 and the inner wall of the air inlet chamber to pull the guide rod 62 when the blowing member stops conveying gas to the air inlet, thereby opening the exhaust hole. It can be understood that during the downward movement of the pressure plate 3, the blowing member conveys air to the air inlet, and the air pressure in the air inlet chamber increases, so as to push the guide rod 62 to move downward to block the exhaust port. When the glue feeding device conveys glue to the glue injection device, the blowing member stops blowing. Under the action of the tension spring 63, the guide rod 62 can be pulled away from the exhaust hole to open the exhaust hole, and the air extraction mechanism starts to extract the gas between the pressure plate 3 and the glue.

[0076] It should be noted that the blowing member is preferably a blowing structure in the prior art and is not specifically limited herein.

[0077] In this embodiment, the pressure plate 3 includes a base 31 and a baffle 32. The baffle 32 is arranged along the circumferential direction of the top of the base 31, and the outer peripheral wall of the connecting seat 4 is attached to the inner wall of the baffle 32. With such a setting, on the one hand, during the downward pressing of the pressure plate 3, the downward pressure received by the pressure plate 3 from the connecting seat 4 is more uniform, thus avoiding the deviation of the position of the pressure plate 3 during the downward pressing process.

[0078] Further, the baffle 32 is arranged in a wide-mouth shape. With such a setting, on the one hand, it can increase the sealing performance between the pressure plate 3 and the glue, and on the other hand, it can also increase the friction between the pressure plate 3 and the glue bucket during the upward movement of the connecting seat 4, so as to facilitate the separation of the suction cup 5 from the pressure plate 3.

[0079] Specifically, the pressure plate 3 is made of plastic. Since plastic has good corrosion resistance and low cost, it can be directly replaced when stains adhere to the pressure plate 3, thereby reducing the cleaning time of the pressure plate 3. In addition, since plastic has good elasticity, the size of the pressure plate 3 can be slightly larger than the size of the glue bucket, so that the tightness between the pressure plate 3 and the inner wall of the glue bucket can be further improved during the downward pressing process, and thus the tightness between the pressure plate 3 and the glue can be ensured. In addition, during the lifting process of the glue inlet channel 13, due to the large tightness between the pressure plate 3 and the inner wall of the glue bucket, it is convenient for the suction cup 5 to separate from the pressure plate 3.

[0080] When replacing the glue bucket, since the glue bucket filled with glue is relatively heavy as a whole, it is not convenient for the staff to place it at the preset working position. Therefore, in this embodiment, the glue feeding device further includes a support seat 7, a drawer plate 8 and a positioning part. The lifting device 2 is arranged on the support seat 7; the drawer plate 8 is slidably arranged on the support seat 7, and the drawer plate 8 is configured to carry the glue bucket. The positioning part is arranged on the top of the drawer plate 8 and is configured to position the glue bucket. In practical applications, the drawer plate 8 is pulled out, and then the emptied glue bucket is removed. The glue bucket filled with glue is placed on the drawer plate 8, and then it is moved to the preset working position under the action of the drawer plate 8. Among them, the preset working position refers to the position where the glue bucket is arranged opposite to the glue inlet channel 13. The extraction direction of the drawer plate 8 is as Figure 5 shown by the arrow direction in, and the reset direction is as shown by the arrow direction in 6.

[0081] In addition, to facilitate the extraction of the drawer plate 8, in this embodiment, rollers are arranged at the bottom of the drawer plate. With this setting, it is not only convenient to extract the drawer plate 8, but also can improve the bearing capacity of the drawer plate 8. In some other feasible embodiments, when the glue bucket 100 is replaced, the drawer plate 8 is replaced together, so as to further improve the efficiency of replacing the glue bucket 100.

[0082] Furthermore, the glue feeding device further includes a proximity switch. The proximity switch is arranged on the support seat 7 and is at the sliding end of the drawer plate 8. The drawer plate 8 approaches the proximity switch when resetting. When the drawer plate 8 moves to the preset working position, the proximity switch gives an alarm, and then the drawer plate 8 stops conveying. With this setting, the conveying accuracy of the drawer plate 8 is improved.

[0083] In this embodiment, the lifting device 2 includes a mounting plate 21 and a plurality of hydraulic cylinders 22. The glue inlet channel 13 is arranged on the mounting plate 21, and the mounting plate 21 is slidably arranged on the support seat 7; the plurality of hydraulic cylinders 22 are evenly distributed on the support seat 7, and the piston rod ends of the plurality of hydraulic rods are connected to the mounting plate 21. The number of the hydraulic cylinders 22 is preferably four. In some other feasible embodiments, the lifting device 2 can also be other existing lifting structures, which will not be elaborated here.

[0084] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. A glue extraction mechanism, used to transport glue in a glue barrel to a glue injection device, characterized in that: The glue extraction mechanism comprises: A cache portion (11), wherein a cache cavity is provided inside the cache portion (11); A pressure portion (12), the pressure portion (12) being disposed in the cache cavity, and the pressure portion (12) being configured to provide a positive pressure or negative pressure environment to the cache cavity; A glue inlet channel (13), the two ends of which are respectively connected to the interior of the glue barrel and the buffer cavity, and the glue inlet channel (13) is used to transport glue to the buffer cavity when the buffer cavity is in a negative pressure state; A first one-way valve (14), the first one-way valve (14) being arranged in the glue inlet channel (13) to transport glue to the buffer chamber in a one-way manner; A glue outlet flow channel (15), the glue outlet flow channel (15) being in communication with the buffer cavity, and the glue outlet flow channel (15) being used to output glue in the buffer cavity when the buffer cavity is in a positive pressure state; A second one-way valve (16), wherein the second one-way valve (16) is arranged in the glue outlet channel (15) to output the glue in the buffer cavity in a one-way manner.

2. The glue extraction mechanism according to claim 1, characterized in that: The pressure part (12) comprises: A piston (121), wherein the piston (121) is slidably disposed in the buffer chamber, and the piston (121) divides the buffer chamber into a material storage area and a power area, and the glue inlet flow channel (13) and the glue outlet flow channel (15) are both connected to the material storage area; A driving member (122), wherein the driving member (122) is disposed in the power zone, and the driving member (122) is configured to drive the piston (121) to reciprocate.

3. The glue extraction mechanism according to claim 2, characterized in that: The glue extraction mechanism (1) further comprises: Two magnetic switches, the two magnetic switches are arranged at intervals in the buffer portion (11), and the two magnetic switches are arranged opposite to the starting position and the ending position of the piston (121) respectively, and the two magnetic switches are electrically connected to the driving member (122); A magnetic component is arranged on the piston (121), and the magnetic component can move with the piston (121) to trigger the two magnetic switches respectively.

4. A glue feeding device, characterized in that: include: Two glue extraction mechanisms (1) according to any one of claims 1 to 3, wherein when one of the pressure parts (12) provides positive pressure to the corresponding buffer cavity, the other pressure part (12) provides negative pressure to the corresponding buffer cavity; A pressure plate (3), wherein the pressure plate (3) is provided with a discharge port, the discharge port is communicated with the glue inlet channel (13), the pressure plate (3) is arranged inside the glue barrel, and the pressure plate is contoured with the inner wall of the glue barrel, and the pressure plate (3) can continuously apply pressure to the surface of the glue; An air extraction mechanism, wherein an air extraction end of the air extraction mechanism is connected to the area between the pressure plate (3) and the glue, and is configured to extract the gas between the pressure plate (3) and the glue.

5. The glue feeding device according to claim 4, characterized in that: The glue feeding device also includes: A connecting seat (4), the connecting seat (4) being arranged on the outer side wall of the glue inlet flow channel (13) and being located above the pressure plate (3), the connecting seat (4) being provided with an exhaust port, the exhaust port being connected to the exhaust end of the exhaust mechanism; A suction cup (5) is arranged at the exhaust port so as to attract the pressure plate (3) when the pressure plate (3) applies pressure to the surface of the glue, and the exhaust port is connected to the suction cup (5), and the suction cup (5) is connected to the exhaust hole on the pressure plate (3).

6. The glue feeding device according to claim 5, characterized in that: The glue feeding device further comprises a sealing component (6), which is arranged at the exhaust port and is configured to block or open the exhaust hole.

7. The glue feeding device according to claim 6, characterized in that: The closure assembly (6) comprises: An air joint (61), the air joint (61) being arranged at the exhaust port, an air flow passage being arranged inside the air joint (61), and an air extraction port and an air inlet being arranged on the air joint (61); a blowing member, the blowing member being in communication with the air inlet and configured to deliver gas to the air inlet; A guide rod (62), wherein the guide rod (62) is slidably disposed in the air flow channel, and the guide rod (62) divides the air flow channel into an air extraction chamber and an air inlet chamber, the air inlet is connected to the air inlet chamber, and the air extraction chamber is connected to the air extraction chamber; the guide rod (62) can block the exhaust hole when the blowing member delivers gas to the air inlet; A tension spring (63), wherein the tension spring (63) is arranged inside the air inlet cavity, and the two ends of the tension spring (63) are respectively connected to the guide rod (62) and the inner wall of the air inlet cavity, so as to pull the guide rod (62) when the blowing member stops delivering gas to the air inlet, thereby opening the exhaust hole.

8. The glue feeding device according to claim 4, characterized in that: The glue feeding device also includes: Support seat (7); A pull-out plate (8), the pull-out plate (8) being slidably disposed on the support seat (7), and the pull-out plate (8) being configured to carry the glue barrel; A positioning portion, the positioning portion is arranged on the top of the pull-out plate (8) and is configured to position the glue barrel.

9. The glue feeding device according to claim 8, characterized in that: The glue feeding device also includes a proximity switch, which is arranged on the support seat (7) and is located at the sliding end of the pull-out plate (8).

10. The glue feeding device according to claim 4, characterized in that: The glue feeding equipment further comprises a lifting device (2), and the glue extraction mechanism (1) is arranged at the lifting end of the lifting device (2).

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