Conveying pump and dispensing machine

Abstract

The utility model belongs to the technical field of dispensing equipment, and discloses a delivery pump and a dispensing machine. The conveying pump comprises a pump body, a glue inlet valve, a glue outlet valve, a moving part and a driving mechanism. According to the conveying pump provided by the utility model, the glue is conveyed through a piston structure consisting of the moving part and the moving cavity, so that the problem that the glue dispenser cannot work normally due to the fact that the high-viscosity glue is easy to adhere to two gears which are meshed with each other in the gear conveying pump in the prior art can be solved, and the fault rate of the glue dispenser can be reduced. According to the conveying pump provided by the utility model, the glue is conveyed through a piston structure consisting of the moving part and the moving cavity, so that the problem that the glue dispensing precision of the glue dispenser is influenced due to the fact that two mutually meshed gears in the gear conveying pump are easily abraded by high-filling glue in the prior art can be solved, and the glue dispensing precision of the glue dispenser can be improved. The dispensing machine comprising the delivery pump provided by the utility model is low in failure rate and high in dispensing precision.

Description

Technical Field

[0001] The utility model relates to the technical field of glue dispensing equipment, in particular to a delivery pump and a glue dispensing machine. Background Art

[0002] Glue dispensing machine, also known as glue coating machine, is used to drip and apply glue on the surface or inside of the product. Glue dispensing machine usually uses gear delivery pump to deliver glue.

[0003] However, when a gear pump is used to deliver highly viscous adhesive, the highly viscous adhesive is prone to adhere to the two meshing gears inside the gear pump, causing the gear pump to malfunction, and thus causing the glue dispenser to not work properly.

[0004] In addition, when a gear pump is used to transport highly filled rubber, the highly filled rubber is prone to wear out the two meshing gears inside the gear pump, making it impossible for the two gears to accurately transport the amount of rubber, thereby affecting the dispensing accuracy of the dispensing machine.

[0005] Therefore, the above problems need to be solved urgently. Utility Model Content

[0006] The purpose of the utility model is to provide a delivery pump and a glue dispensing machine to solve the problem in the prior art that high-viscosity glue is easy to adhere to the two meshing gears inside the gear delivery pump, causing the glue dispensing machine to fail to work normally. At the same time, it solves the problem in the prior art that high-filler glue is easy to wear the two meshing gears inside the gear delivery pump, thereby affecting the dispensing accuracy of the glue dispensing machine.

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

[0008] A delivery pump, comprising:

[0009] The pump body comprises a movement cavity, a glue inlet flow channel and a glue outlet flow channel, wherein the glue inlet flow channel and the glue outlet flow channel are both connected to the bottom of the movement cavity;

[0010] The glue inlet valve and the glue outlet valve are both arranged on the pump body, the glue inlet valve is used to control the on-off of the glue inlet flow channel, and the glue outlet valve is used to control the on-off of the glue outlet flow channel;

[0011] A moving part is slidably disposed in the moving cavity and cooperates with the inner wall of the moving cavity in a sealing manner to form a piston mechanism;

[0012] The driving mechanism is arranged on the pump body and is configured to drive the moving part to slide toward the bottom of the moving cavity.

[0013] Preferably, the delivery pump further comprises a lubrication mechanism, and the lubrication mechanism is configured to supply lubricating oil to the inner wall of the motion chamber.

[0014] Preferably, the lubrication mechanism comprises a lubrication cavity for storing lubricating oil, the lubrication cavity is arranged in the pump body and connected with the top of the motion cavity, a push piece is slidably arranged in the lubrication cavity, and the push piece and the inner wall of the lubrication cavity are sealed to form a piston mechanism.

[0015] Preferably, an observation window is provided on the pump body along the sliding direction of the push piece to observe the storage amount of the lubricating oil in the lubricating cavity.

[0016] Preferably, the glue inlet valve comprises:

[0017] A valve flap, a valve seat is formed in the glue inlet flow channel, and the valve flap can be embedded in or disengaged from the valve seat to control the on-off of the glue inlet flow channel;

[0018] A telescopic spring has one end connected to the pump body and the other end connected to the valve flap so as to push the valve flap to embed into the valve seat.

[0019] Preferably, the glue inlet valve further includes:

[0020] A blowing member is arranged on the pump body, and the blowing member is configured to push the valve flap to embed into the valve seat.

[0021] Preferably, the glue inlet valve further includes a diaphragm covering the valve seat.

[0022] Preferably, the driving mechanism comprises:

[0023] A servo motor is arranged on the pump body;

[0024] A transmission screw rod is rotatably disposed on the pump body and is disposed along the sliding direction of the moving part;

[0025] A transmission assembly, wherein the output shaft of the servo motor is connected to the transmission screw through the transmission assembly;

[0026] A screw nut, which is threadably matched with the transmission screw and is slidably arranged on the pump body along the sliding direction of the moving part;

[0027] The push member is connected to the screw nut and can push the end of the moving member away from the glue inlet channel.

[0028] Preferably, the transmission assembly includes a driving wheel, a driven wheel and a synchronous belt, the driving wheel is coaxially arranged on the output shaft of the servo motor, the driven wheel is coaxially arranged on the transmission screw, and the synchronous belt is wound around the driving wheel and the driven wheel.

[0029] A glue dispensing machine comprises a glue cylinder, a glue dispensing head and the above-mentioned delivery pump, wherein the delivery pump is used for delivering the glue in the glue cylinder to the glue dispensing head.

[0030] Beneficial effects of the utility model:

[0031] 1. The delivery pump provided by the utility model delivers rubber through a piston structure composed of a moving part and a moving cavity, which can solve the problem in the prior art that high-viscosity rubber is easy to adhere to the two meshing gears inside the gear delivery pump, causing the dispensing machine to fail to work normally, thereby reducing the failure rate of the dispensing machine.

[0032] 2. The delivery pump provided by the utility model delivers rubber through a piston structure composed of a moving part and a moving cavity, which can solve the problem in the prior art that high-filler rubber easily wears the two meshing gears inside the gear delivery pump and affects the dispensing accuracy of the glue dispensing machine, thereby improving the dispensing accuracy of the glue dispensing machine.

[0033] 3. The glue dispensing machine provided by the utility model including the above-mentioned delivery pump can solve the problem in the prior art that high-viscosity glue easily adheres to the two meshing gears inside the gear delivery pump, causing the glue dispensing machine to fail to work normally, thereby reducing the failure rate of the glue dispensing machine.

[0034] 4. The glue dispensing machine provided by the utility model including the above-mentioned delivery pump can solve the problem in the prior art that the high-filler glue easily wears the two meshing gears inside the gear delivery pump, thereby affecting the glue dispensing accuracy, thereby improving the glue dispensing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a cross-sectional view of the delivery pump provided by the utility model;

[0036] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0037] In the figure:

[0038] 1. Pump body; 11. Movement cavity; 12. Glue inlet channel; 13. Glue outlet channel;

[0039] 2. Glue inlet valve; 21. Valve disc; 22. Telescopic spring; 23. Diaphragm;

[0040] 3. Glue discharging valve;

[0041] 4. Moving parts;

[0042] 5. Driving mechanism; 51. Servo motor; 52. Transmission screw; 53. Transmission assembly; 531. Driving wheel; 532. Driven wheel; 533. Synchronous belt; 54. Screw nut; 55. Push piece;

[0043] 6. Lubrication mechanism; 61. Lubrication chamber; 62. Push piece; 63. Observation window. DETAILED DESCRIPTION

[0044] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0045] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0046] In the present application, the term "and / or" is a description of the association relationship of associated objects, indicating that three relationships may exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent: the existence of a centrifugal vortex magnetic pump alone, the existence of a centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump at the same time, and the existence of a centrifugal vortex magnetic pump alone. In addition, the character " / " in the present application generally indicates that the objects associated before and after are in an "and / or" relationship.

[0047] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0048] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, etc. Such terms should also be considered to disclose a range defined by the absolute values ​​of the 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 use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0049] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0050] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0051] See also Figure 1 and Figure 2 The present embodiment provides a delivery pump, which includes a pump body 1, a glue inlet valve 2, a glue outlet valve 3, a moving part 4 and a driving mechanism 5. The pump body 1 includes a motion chamber 11, a glue inlet flow channel 12 and a glue outlet flow channel 13, and the glue inlet flow channel 12 and the glue outlet flow channel 13 are both connected to the bottom of the motion chamber 11. The glue inlet valve 2 and the glue outlet valve 3 are both arranged on the pump body 1, and the glue inlet valve 2 is used to control the on-off of the glue inlet flow channel 12, and the glue outlet valve 3 is used to control the on-off of the glue outlet flow channel 13. The moving part 4 is slidably arranged in the motion chamber 11, and is sealed with the inner wall of the motion chamber 11 to form a piston mechanism. The driving mechanism 5 is arranged on the pump body 1, and is configured to drive the moving part 4 to slide toward the bottom of the motion chamber 11.

[0052] When the glue is fed, the glue feed valve 2 first opens the glue feed channel 12, and at the same time, the glue discharge valve 3 closes the glue discharge channel 13, and the glue is filled into the moving cavity 11 through the glue feed channel 12 and pushes the moving part 4 to slide.

[0053] When discharging glue, the glue inlet valve 2 first closes the glue inlet flow channel 12, and at the same time, the glue outlet valve 3 opens the glue outlet flow channel 13, and then the driving mechanism 5 drives the moving part 4 to slide, pushing the glue out of the moving cavity 11 and outputting it through the glue outlet flow channel 13.

[0054] It can be understood that the rubber is conveyed through the piston structure composed of the moving part 4 and the moving cavity 11, which can solve the problem in the prior art that the high-viscosity rubber is easy to adhere to the two meshing gears inside the gear delivery pump, causing the glue dispenser to fail to work normally, thereby reducing the failure rate of the glue dispenser. It can also be understood that the rubber is conveyed through the piston structure composed of the moving part 4 and the moving cavity 11, which can solve the problem in the prior art that the high-filler rubber is easy to wear the two meshing gears inside the gear delivery pump, thereby affecting the glue dispensing accuracy of the glue dispenser, thereby improving the glue dispensing accuracy of the glue dispenser.

[0055] In order to improve the smoothness of the sliding of the moving part 4 in the moving cavity 11, the delivery pump also includes a lubrication mechanism 6, which is configured to supply lubricating oil to the inner wall of the moving cavity 11. Specifically, the lubrication mechanism 6 includes a lubrication cavity 61 for storing lubricating oil, the lubrication cavity 61 is arranged in the pump body 1, and is connected to the top of the moving cavity 11. A push piece 62 is slidingly arranged in the lubrication cavity 61, and the push piece 62 and the inner wall of the lubrication cavity 61 are sealed to form a piston mechanism. It can be understood that the push piece 62 can press the lubricating oil in the lubrication cavity 61 into the moving cavity 11 when it slides in the lubrication cavity 61, which has a simple structure and reliable operation. It should be noted that a refueling port is also provided on the upper side of the lubrication cavity 61, and the structure of the refueling port can be designed according to the actual use scenario, which will not be described in detail. It should also be noted that the assembly method and working principle of the push piece 62 and the lubrication cavity 61 are both existing technologies and will not be described in detail.

[0056] It is understandable that lubricating oil is a consumable and needs to be replenished regularly. Therefore, in this embodiment, an observation window 63 is provided on the pump body 1 along the sliding direction of the push piece 62 to observe the storage amount of lubricating oil in the lubrication cavity 61. It should be noted that the type of lubricating oil can be selected according to the actual use scenario, and this embodiment does not make specific requirements and restrictions on this.

[0057] In this embodiment, the structure of the glue inlet valve 2 is consistent with that of the glue outlet valve 3. The structure of the glue inlet valve 2 is used as an example for explanation. The glue inlet valve 2 includes a valve flap 21 and a telescopic spring 22. A valve seat is formed in the glue inlet flow channel 12. The valve flap 21 can be embedded in or detached from the valve seat to control the on-off of the glue inlet flow channel 12. One end of the telescopic spring 22 is connected to the pump body 1, and the other end is connected to the valve flap 21 to push the valve flap 21 to embed in the valve seat. It can be understood that when the glue is injected, the glue inlet valve 2 opens the glue inlet flow channel 12, and the glue can overcome the elastic force of the telescopic spring 22 after entering the glue inlet flow channel 12. In other words, the glue inlet valve 2 can be opened by the glue injection pressure, and the structure is simple and efficient.

[0058] Furthermore, the glue inlet valve 2 also includes a blowing member, which is arranged on the pump body 1 and is configured to push the valve flap 21 to embed into the valve seat. It is understandable that the setting of the blowing member can provide an additional driving force to the valve flap 21 when the telescopic spring 22 pushes the valve flap 21 to embed into the valve seat, so that the valve flap 21 can be more smoothly embedded in the valve seat. It should be noted that the blowing member is preferably a high-pressure gas supply mechanism in the prior art, such as an air compressor, an air pump, etc.

[0059] In order to make the sealing of the valve seat better when the glue inlet flow channel 12 is blocked, the glue inlet valve 2 also includes a diaphragm 23 covering the valve seat. It is understandable that when the valve flap 21 is embedded in the valve seat, it can push the diaphragm 23 to deform and seal the gap between the valve flap 21 and the valve seat. It should be noted that the diaphragm 23 is a prior art, so it is not described in detail.

[0060] The driving mechanism 5 includes a servo motor 51, a transmission screw 52, ​​a transmission assembly 53, a screw nut 54 and a push-pull member 55. The servo motor 51 is arranged on the pump body 1. The transmission screw 52 is rotatably arranged on the pump body 1 and is arranged along the sliding direction of the moving part 4. The output shaft of the servo motor 51 is connected to the transmission screw 52 through the transmission assembly 53. The screw nut 54 is threadedly matched with the transmission screw 52 and is slidably arranged on the pump body 1 along the sliding direction of the moving part 4. The push-pull member 55 is connected to the screw nut 54 and can push the moving part 4 away from the end of the glue inlet flow channel 12. In this way, the servo motor 51 drives the transmission screw 52 to rotate, so that the screw nut 54 can move along the transmission screw 52, ​​thereby driving the push-pull member 55 to move, and then the moving part 4 can be pushed by the push-pull member 55. It can be understood that the moving part 4 is driven to move by the servo motor 51, with high precision and stable operation.

[0061] Further, the transmission assembly 53 includes a driving wheel 531, a driven wheel 532 and a synchronous belt 533. The driving wheel 531 is coaxially arranged on the output shaft of the servo motor 51, the driven wheel 532 is coaxially arranged on the transmission screw 52, ​​and the synchronous belt 533 is wound around the driving wheel 531 and the driven wheel 532. It can be understood that the transmission structure composed of the driving wheel 531, the driven wheel 532 and the synchronous belt 533 combines the advantages of gear transmission, chain transmission and belt transmission, and the transmission is accurate, stable and efficient.

[0062] This embodiment also provides a glue dispensing machine, which includes a glue barrel, a glue dispensing head and the above-mentioned delivery pump, and the delivery pump is used to deliver the glue in the glue barrel to the glue dispensing head. It can be understood that the glue dispensing machine including the above-mentioned delivery pump can solve the problem in the prior art that high-viscosity glue easily adheres to the two gears meshing with each other inside the gear delivery pump, causing the glue dispensing machine to fail to work normally, thereby reducing the failure rate of the glue dispensing machine. It can also be understood that the glue dispensing machine including the above-mentioned delivery pump can solve the problem in the prior art that high-filler glue easily wears the two gears meshing with each other inside the gear delivery pump, thereby affecting the glue dispensing accuracy, thereby improving the glue dispensing accuracy.

[0063] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A delivery pump, characterized in that: include: A pump body (1) comprises a movement chamber (11), a glue inlet flow channel (12) and a glue outlet flow channel (13), wherein the glue inlet flow channel (12) and the glue outlet flow channel (13) are both connected to the bottom of the movement chamber (11); The glue inlet valve (2) and the glue outlet valve (3) are both arranged on the pump body (1), the glue inlet valve (2) is used to control the opening and closing of the glue inlet flow channel (12), and the glue outlet valve (3) is used to control the opening and closing of the glue outlet flow channel (13); A moving part (4) is slidably disposed in the moving cavity (11) and sealably cooperates with the inner wall of the moving cavity (11) to form a piston mechanism; The driving mechanism (5) is arranged on the pump body (1) and is configured to drive the moving part (4) to slide toward the bottom of the moving chamber (11).

2. A delivery pump according to claim 1, characterized in that: The delivery pump further comprises a lubricating mechanism (6), wherein the lubricating mechanism (6) is configured to supply lubricating oil to the inner wall of the motion chamber (11).

3. A delivery pump according to claim 2, characterized in that: The lubricating mechanism (6) comprises a lubricating cavity (61) for storing lubricating oil. The lubricating cavity (61) is arranged in the pump body (1) and is connected to the top of the moving cavity (11). A pushing piece (62) is slidably arranged in the lubricating cavity (61). The pushing piece (62) is sealed and matched with the lubricating cavity (61).

4. A delivery pump according to claim 3, characterized in that: An observation window (63) is provided on the pump body (1) along the sliding direction of the push piece (62) to observe the storage amount of lubricating oil in the lubricating cavity (61).

5. A delivery pump according to claim 1, characterized in that: The glue inlet valve (2) comprises: A valve flap (21), wherein a valve seat is formed in the glue inlet flow channel (12), and the valve flap (21) can be embedded in or detached from the valve seat to control the opening and closing of the glue inlet flow channel (12); A telescopic spring (22) has one end connected to the pump body (1) and the other end connected to the valve flap (21) so as to push the valve flap (21) to embed into the valve seat.

6. A delivery pump according to claim 5, characterized in that: The glue inlet valve (2) also includes: A blowing member is arranged on the pump body (1), and is configured to push the valve flap (21) to embed into the valve seat.

7. A delivery pump according to claim 6, characterized in that: The glue inlet valve (2) also includes a diaphragm (23) covering the valve seat.

8. A delivery pump according to claim 1, characterized in that: The driving mechanism (5) comprises: A servo motor (51) is arranged on the pump body (1); A transmission screw (52) is rotatably mounted on the pump body (1) and is arranged along the sliding direction of the moving part (4); A transmission assembly (53), wherein the output shaft of the servo motor (51) is transmission-connected to the transmission screw rod (52) via the transmission assembly (53); A screw nut (54) is threadably matched with the transmission screw (52) and is slidably disposed on the pump body (1) along the sliding direction of the moving part (4); A push member (55) is connected to the screw nut (54) and is capable of pushing an end of the moving member (4) away from the glue inlet channel (12).

9. A delivery pump according to claim 8, characterized in that: The transmission assembly (53) comprises a driving wheel (531), a driven wheel (532) and a synchronous belt (533); the driving wheel (531) is coaxially arranged on the output shaft of the servo motor (51); the driven wheel (532) is coaxially arranged on the transmission screw (52); and the synchronous belt (533) is wound around the driving wheel (531) and the driven wheel (532).

10. A glue dispensing machine, characterized in that: It comprises a rubber cartridge, a rubber dispensing head and a delivery pump as described in any one of claims 1 to 9, wherein the delivery pump is used to deliver the rubber in the rubber cartridge to the rubber dispensing head.

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