Dispensing pump

Abstract

The utility model belongs to the technical field of dispensing equipment and discloses a dispensing pump which comprises a conveying pipe, a conveying shaft arranged in the conveying pipe, a spiral blade arranged outside the conveying shaft and a driving part located at one end of the conveying pipe, a glue inlet is formed in the end, close to the driving part, of the conveying pipe, and a glue outlet is formed in the end, away from the driving part, of the conveying pipe. An output shaft of the driving part is in transmission connection with the conveying shaft through a meshing structure; the meshing structure can realize synchronous rotation or disconnection of transmission connection of the two along with the rotating load of the conveying shaft; and after the glue is solidified in the conveying pipe, the conveying shaft can be disconnected from the driving piece under the action of the meshing structure, so that the driving piece idles, the situation that the driving piece is damaged due to the fact that the conveying shaft cannot rotate is avoided, and the service life of the glue dispensing pump is further guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of dispensing equipment, and particularly relates to a dispensing pump. BACKGROUND

[0002] The dispensing pump is a dispensing equipment, and is often applied to the fields of precise quantitative conveying, glue coating and potting due to its characteristics of high precision and quantitative linear conveying.

[0003] In the related art, the dispensing pump comprises a driving unit and a conveying unit, the conveying unit comprises a conveying channel and a conveying shaft arranged inside the conveying channel, the conveying shaft is externally provided with a spiral blade, the driving unit is used for driving the conveying shaft to rotate, so that the glue in the conveying channel moves under the action of the spiral blade and is discharged through a glue outlet of the conveying channel, so as to complete the conveying work of the glue. However, after the dispensing pump is used, there is glue residue in the conveying channel, if the dispensing pump is stopped for a long time, the glue in the conveying channel will solidify, so that the conveying shaft cannot rotate, and this problem is easily ignored by the workers when the dispensing pump is used again, so that the driving unit is easily damaged, and the service life of the dispensing pump is affected. CONTENT OF THE UTILITY MODEL

[0004] The application provides a dispensing pump, so as to avoid the situation that the driving unit is easily damaged due to the conveying shaft cannot rotate, and to ensure the service life of the dispensing pump.

[0005] The technical scheme adopted by the application is as follows:

[0006] The dispensing pump comprises a conveying pipe, a conveying shaft arranged inside the conveying pipe, a spiral blade arranged outside the conveying shaft and a driving member located at one end of the conveying pipe, one end of the conveying pipe close to the driving member is provided with a glue inlet, one end of the conveying pipe away from the driving member is provided with a glue outlet, an output shaft of the driving member is in transmission connection with the conveying shaft through a meshing structure, and the meshing structure can realize synchronous rotation or disconnection of transmission connection of the two under the rotation load of the conveying shaft.

[0007] By adopting the technical scheme, when the dispensing pump in the application is used for dispensing, the glue tank is connected to the feeding port, so that the glue enters the conveying pipe through the glue inlet, then the motor is started, the motor drives the conveying shaft under the action of the meshing structure, the conveying shaft drives the spiral blade to rotate, and then the spiral blade drives the glue to be discharged through the glue outlet, so as to realize the dispensing operation; if the dispensing pump is not used for a long time and the glue solidifies in the conveying pipe, the conveying shaft can be disconnected from the driving part under the action of the meshing structure, so that the conveying shaft idles, thereby avoiding the damage of the driving part due to the failure of the conveying shaft to rotate, and the service life of the dispensing pump is ensured.

[0008] Optionally, the meshing structure comprises a synchronous shaft in transmission connection with the output shaft of the driving part, a synchronous sleeve sleeved on the synchronous shaft, and an elastic member arranged on the synchronous shaft and acting on the synchronous sleeve, the synchronous sleeve can slide along the axial direction of the synchronous shaft and can rotate with the synchronous shaft, the elastic member is used for applying force to the synchronous sleeve towards the direction of the conveying shaft, and the end faces of the synchronous sleeve and the conveying shaft opposite to each other are provided with teeth that mesh with each other.

[0009] By adopting the technical scheme, when the driving part rotates, the output shaft of the driving part drives the synchronous shaft to rotate, the synchronous shaft drives the synchronous sleeve to rotate, and then the synchronous sleeve drives the conveying shaft to rotate under the action of the teeth, and when the conveying shaft cannot rotate under the action of the solidified glue, the conveying shaft has a large rotating load, at this time, the synchronous sleeve applies pressure to the elastic member under the action of the teeth, and at the same time, the teeth on the synchronous sleeve slide relative to the teeth on the conveying shaft, so as to realize the disconnection of the transmission connection between the driving part and the conveying shaft, thereby avoiding the damage of the driving part due to the large load, and the service life of the dispensing pump is ensured.

[0010] Optionally, the cross section of the synchronous shaft perpendicular to the axial direction of the synchronous shaft is a polygon, the synchronous sleeve has a center hole matched with the synchronous shaft, the synchronous shaft is arranged in the center hole, and the teeth arranged on the synchronous sleeve are arranged along the circumferential direction of the center hole.

[0011] By adopting the technical scheme, since the cross section of the synchronous shaft perpendicular to the axial direction of the synchronous shaft is a polygon, the synchronous sleeve has a center hole matched with the synchronous shaft, and then the synchronous sleeve can slide relative to the synchronous shaft and can rotate with the synchronous shaft, and the teeth arranged on the synchronous sleeve are arranged along the circumferential direction of the center hole, so as to ensure the transmission efficiency between the synchronous sleeve and the conveying shaft.

[0012] Optionally, the synchronous sleeve is provided with a blocking part, the synchronous shaft is provided with a stop part located on the side of the blocking part away from the driving part, and the blocking part and the stop part are in stop cooperation in the axial direction of the synchronous shaft.

[0013] By adopting the technical scheme, the blocking part and the stopping part are in stopping cooperation in the axial direction of the synchronous shaft, and then the stopping cooperation of the blocking part and the stopping part can limit the synchronous sleeve, so that the synchronous sleeve is prevented from being separated from the synchronous shaft under the action of the elastic member, thereby reducing the assembly difficulty of the glue dispensing pump, and further improving the production efficiency of the glue dispensing pump.

[0014] Optionally, the glue dispensing pump further comprises a mounting frame, the driving member is arranged at one end of the mounting frame, the conveying pipe is arranged at the other end of the mounting frame, and the meshing structure is arranged in the interior of the mounting frame.

[0015] By adopting the technical scheme, the driving member is arranged at one end of the mounting frame, the conveying pipe is arranged at the other end of the mounting frame, and the meshing structure is arranged in the interior of the mounting frame, thereby increasing the connection stability of the meshing structure, the driving member and the conveying shaft, and further ensuring the transmission efficiency between the driving member and the conveying shaft and ensuring that the driving member and the conveying shaft can be disconnected.

[0016] Optionally, the conveying pipe has a conveying starting end and a conveying ending end opposite to the conveying starting end, the conveying starting end is arranged in an open manner, the conveying shaft extends into the conveying pipe through the conveying starting end, and the conveying ending end is arranged in a closed manner.

[0017] By adopting the technical scheme, since the conveying ending end is arranged in a closed manner, the glue outlet is located on the peripheral surface of the conveying pipe, thereby avoiding the situation that the glue amount is not easy to control due to the glue outlet arranged at the end of the conveying pipe, and further ensuring the accuracy of glue dispensing.

[0018] Optionally, the conveying pipe comprises a first half pipe, a second half pipe arranged opposite to the first half pipe, and a locking ring sleeved outside the first half pipe and the second half pipe, and the first half pipe and the second half pipe form a conveying channel for conveying the glue and accommodating the conveying shaft.

[0019] By adopting the technical scheme, since the conveying pipe comprises the first half pipe and the second half pipe, after the glue solidifies in the conveying pipe, the conveying pipe can be removed, the locking ring can be removed from the conveying pipe, then the first half pipe and the second half pipe can be separated, and then the glue solidified in the interiors of the first half pipe and the second half pipe and the glue solidified on the spiral blade can be cleaned, so that the glue solidified in the interior of the conveying pipe can be conveniently cleaned.

[0020] Optionally, one of the first half pipe and the second half pipe is provided with a sealing groove, and the other one is provided with a sealing rib extending into the sealing groove.

[0021] By adopting the technical scheme, the sealing ribs extend into the sealing grooves after the first half pipe and the second half pipe are assembled together, so that the connection sealing property of the first half pipe and the second half pipe is increased, thereby avoiding the overflow of the adhesive through the gap between the first half pipe and the second half pipe, and further ensuring the precision of the adhesive dispensing.

[0022] Optionally, the adhesive dispensing pump further comprises a mounting frame, the mounting frame is provided with a connecting sleeve sleeved outside the conveying pipe, and the conveying pipe is threadedly connected with the connecting sleeve.

[0023] By adopting the technical scheme, since the conveying pipe is threadedly connected with the connecting sleeve, and the connecting sleeve is sleeved outside the conveying pipe, the connection stability of the first half pipe and the second half pipe can be increased, so as to further avoid the overflow of the adhesive through the gap between the first half pipe and the second half pipe.

[0024] Optionally, the conveying pipe is provided with an adhesive inlet nozzle, the adhesive inlet nozzle is threadedly connected with the adhesive inlet port.

[0025] And / or, the conveying pipe is provided with an adhesive outlet nozzle, the adhesive outlet nozzle is threadedly connected with the adhesive outlet port.

[0026] By adopting the technical scheme, since the adhesive inlet nozzle is threadedly connected with the adhesive inlet port, when the locking ring is disassembled, the adhesive inlet nozzle can be removed from the conveying pipe, so that the disassembly of the locking ring is avoided due to the existence of the adhesive inlet nozzle, and the disassembly efficiency of the conveying pipe is ensured; meanwhile, the effect of facilitating the replacement of the adhesive inlet nozzle is achieved.

[0027] Since the adhesive outlet nozzle is threadedly connected with the adhesive outlet port, when the locking ring is disassembled, the adhesive outlet nozzle can be removed from the conveying pipe, so that the disassembly of the locking ring is avoided due to the existence of the adhesive outlet nozzle, and the disassembly efficiency of the conveying pipe is ensured; meanwhile, the effect of facilitating the replacement of the adhesive outlet nozzle is achieved.

[0028] By adopting the technical scheme, the application has the following beneficial effects:

[0029] 1. The dispensing pump in the application comprises a conveying pipe, a conveying shaft arranged inside the conveying pipe, helical blades arranged outside the conveying shaft, and a driving member at one end of the conveying pipe, the end of the conveying pipe close to the driving member is provided with a glue inlet, the end of the conveying pipe away from the driving member is provided with a glue outlet, the output shaft of the driving member is in transmission connection with the conveying shaft through the meshing structure, the meshing structure can realize synchronous rotation or disconnection of transmission connection of the two under the rotation load of the conveying shaft, when the dispensing pump in the application is used for dispensing, the glue tank is connected to the feeding port, so that the glue enters the conveying pipe through the glue inlet, then the motor is started, the motor drives the conveying shaft under the action of the meshing structure, the conveying shaft drives the helical blades to rotate, and then the helical blades drive the glue to be discharged through the glue outlet, so as to realize the dispensing operation; if the dispensing pump is not used for a long time, and the glue solidifies in the conveying pipe, the conveying shaft can be disconnected from the driving member under the action of the meshing structure, so that the conveying shaft idles, so as to avoid the damage of the driving member caused by the failure of the conveying shaft to rotate, and thus the service life of the dispensing pump is ensured.

[0030] 2. The meshing structure in the application comprises a synchronous shaft in transmission connection with the output shaft of the driving member, a synchronous sleeve sleeved on the synchronous shaft, and an elastic member arranged on the synchronous shaft and acting on the synchronous sleeve, the synchronous sleeve can slide along the axial direction of the synchronous shaft and can rotate with the synchronous shaft, the elastic member is used for applying force to the synchronous sleeve towards the conveying shaft, the end faces of the synchronous sleeve and the conveying shaft are both provided with teeth that mesh with each other, when the driving member rotates, the output shaft of the driving member drives the synchronous shaft to rotate, the synchronous shaft drives the synchronous sleeve to rotate, and then the synchronous sleeve drives the conveying shaft to rotate under the action of the teeth, when the conveying shaft cannot rotate under the action of the solidified glue, the rotation load of the conveying shaft is large, at this time, the synchronous sleeve applies pressure to the elastic member under the action of the teeth, and at the same time, the teeth on the synchronous sleeve slide relative to the teeth on the conveying shaft, so as to realize the disconnection of transmission connection of the driving member and the conveying shaft, so as to avoid the damage of the driving member caused by the large load, and thus the service life of the dispensing pump is ensured.

[0031] 3. The cross section of the synchronous shaft perpendicular to the axial direction of the synchronous shaft is polygonal, the synchronous sleeve has a center hole matched with the synchronous shaft, so that the synchronous sleeve can slide relative to the synchronous shaft, and the synchronous sleeve can rotate synchronously with the synchronous shaft, the teeth arranged on the synchronous sleeve are arranged along the circumferential direction of the center hole, so as to ensure the transmission efficiency between the synchronous sleeve and the conveying shaft. BRIEF DESCRIPTION OF DRAWINGS

[0032] The drawings described herein are used to provide further understanding of the application, and constitute a part of the application. The illustrative embodiments of the application and their descriptions are used to explain the application, and do not constitute improper limitations on the application. In the drawings:

[0033] Figure 1A schematic structural view of the glue dispensing pump according to an embodiment of the present application;

[0034] Figure 2 A partial structural sectional view of the glue dispensing pump according to an embodiment of the present application;

[0035] Figure 3 A schematic structural view of the glue dispensing pump according to an embodiment of the present application; Figure 2 An enlarged view of the A portion in the middle;

[0036] Figure 4 A schematic structural view of the glue dispensing pump according to an embodiment of the present application;

[0037] Reference signs:

[0038] 1, conveying pipe; 11, first half pipe; 111, sealing groove; 112, glue inlet nozzle; 12, second half pipe; 121, sealing rib; 122, glue outlet nozzle; 13, locking ring; 2, conveying shaft; 3, helical blade; 4, driving member; 5, meshing structure; 51, synchronizing shaft; 511, stop portion; 52, synchronizing sleeve; 521, blocking portion; 522, tooth; 53, elastic member; 6, mounting frame; 61, connecting sleeve; 7, speed reducer. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0040] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other ways different from those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0041] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0042] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection, or communication; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. In the description of the present specification, the description of the terms "embodiment", "example", "one embodiment", "exemplary" or "specific example" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] Referring to Figures 1 to 4 , a dispensing pump is disclosed, comprising a conveying pipe 1, a conveying shaft 2 arranged inside the conveying pipe 1, a spiral blade 3 arranged outside the conveying shaft 2, and a driving member 4 located at one end of the conveying pipe 1. The end of the conveying pipe 1 close to the driving member 4 is provided with a glue inlet, and the end of the conveying pipe 1 away from the driving member 4 is provided with a glue outlet. The output shaft of the driving member 4 is in transmission connection with the conveying shaft 2 through the meshing structure 5, and the meshing structure 5 can realize synchronous rotation or disconnection of transmission connection of the two under the rotation load of the conveying shaft 2.

[0045] When dispensing using the dispensing pump in the present application, the glue tank is connected to the feed inlet so that the glue enters the conveying pipe 1 through the glue inlet, and then the motor is started. The motor drives the conveying shaft 2 under the action of the meshing structure 5, the conveying shaft 2 drives the spiral blade 3 to rotate, and then the spiral blade 3 drives the glue to be discharged through the glue outlet, so as to realize the dispensing work; if the dispensing pump has not worked for a long time, and the glue solidifies in the conveying pipe 1, the conveying shaft 2 can disconnect the transmission connection with the driving member 4 under the action of the meshing structure 5, so that the conveying shaft 2 idles, so as to avoid the damage of the driving member 4 due to the inability of the conveying shaft 2 to rotate, and thus the service life of the dispensing pump is ensured.

[0046] The structure of the meshing structure 5 is not specifically limited in the present application, preferably, referring to Figure 1 and Figure 3 , the meshing structure 5 comprises a synchronization shaft 51 in transmission connection with the output shaft of the driving member 4, a synchronization sleeve 52 sleeved on the synchronization shaft 51, and an elastic member 53 arranged on the synchronization shaft 51 and acting on the synchronization sleeve 52. The synchronization sleeve 52 can slide along the axial direction of the synchronization shaft 51 and can rotate with the synchronization shaft 51. The elastic member 53 is used to apply a force to the synchronization sleeve 52 in the direction of the conveying shaft 2. The end faces of the synchronization sleeve 52 and the conveying shaft 2 are both provided with teeth 522 that mesh with each other.

[0047] When the driving member 4 rotates, the output shaft of the driving member 4 drives the synchronous shaft 51 to rotate, the synchronous shaft 51 drives the synchronous sleeve 52 to rotate, and then the synchronous sleeve 52 drives the conveying shaft 2 to rotate under the action of the teeth 522. When the conveying shaft 2 cannot rotate under the action of the colloid solidification, the rotating load of the conveying shaft 2 is large, at this time, the synchronous sleeve 52 exerts pressure on the elastic member 53 under the action of the teeth 522, and at the same time, the teeth 522 on the synchronous sleeve 52 slide relative to the teeth 522 on the conveying shaft 2, so as to realize the disconnection of the driving member 4 and the conveying shaft 2, thereby avoiding the damage of the driving member 4 due to the large load, and further ensuring the service life of the glue pump.

[0048] The structure of the elastic member 53 is not limited in the application, preferably, referring to Figure 1 and Figure 3 , the elastic member 53 is a spring sleeved on the synchronous shaft 51, one end of the spring abuts against the output shaft, and the other end of the spring abuts against the synchronous sleeve 52, so that the synchronous sleeve 52 moves away from the driving member 4 under the action of the spring. In other embodiments, the elastic member 53 can also be an elastic sheet or an elastic column or other elastic structures.

[0049] Further, the cross section of the synchronous shaft 51 perpendicular to the axial direction of the synchronous shaft 51 is a polygon, the synchronous sleeve 52 has a center hole matched with the synchronous shaft 51, the synchronous shaft 51 is arranged in the center hole, and the teeth 522 arranged on the synchronous sleeve 52 are arranged along the circumferential direction of the center hole.

[0050] Since the cross section of the synchronous shaft 51 perpendicular to the axial direction of the synchronous shaft 51 is a polygon, the synchronous sleeve 52 has a center hole matched with the synchronous shaft 51, so that the synchronous sleeve 52 can slide relative to the synchronous shaft 51, and the synchronous sleeve 52 can rotate synchronously with the synchronous shaft 51, and the teeth 522 arranged on the synchronous sleeve 52 are arranged along the circumferential direction of the center hole, thereby ensuring the transmission efficiency between the synchronous sleeve 52 and the conveying shaft 2.

[0051] Preferably, the cross section of the synchronous shaft 51 perpendicular to the axial direction of the synchronous shaft 51 is a regular hexagon, and the cross section of the center hole is a regular hexagon, so as to ensure that the synchronous sleeve 52 can rotate synchronously with the synchronous shaft 51.

[0052] Further, referring to Figure 3 , the synchronous sleeve 52 is provided with a blocking portion 521, the synchronous shaft 51 is provided with a stop portion 511 located on the side of the blocking portion 521 away from the driving member 4, and the blocking portion 521 and the stop portion 511 are in abutting cooperation in the axial direction of the synchronous shaft 51.

[0053] The blocking portion 521 and the stopping portion 511 are in abutting engagement in the axial direction of the synchronization shaft 51, and then the abutting engagement of the blocking portion 521 and the stopping portion 511 can limit the synchronization sleeve 52, so as to avoid the situation that the synchronization sleeve 52 is separated from the synchronization shaft 51 under the action of the elastic member 53, thereby reducing the assembly difficulty of the dispensing pump, and further improving the production efficiency of the dispensing pump.

[0054] Preferably, the blocking portion 521 is an annular structure arranged on the synchronization sleeve 52, and the stopping portion 511 is an annular structure arranged on the synchronization shaft 51, so as to simplify the structure of the blocking portion 521 and the stopping portion 511, and increase the stability of the abutting engagement of the two.

[0055] In other embodiments, the meshing structure 5 can include a synchronization shaft 51, a synchronization block sleeved on the synchronization shaft 51, and an elastic member 53 arranged on the synchronization shaft 51 and acting on the synchronization block, the elastic member 53 is used to apply a force to the synchronization block away from the driving member 4, and the opposite end faces of the synchronization block and the conveying shaft 2 are provided with meshing pieces capable of meshing with each other, that is, the synchronization block and the conveying shaft 2 are in transmission connection through the meshing pieces.

[0056] In a preferred embodiment, referring to Figure 1 and Figure 2 , the dispensing pump further includes a mounting frame 6, the driving member 4 is arranged at one end of the mounting frame 6, the conveying pipe 1 is arranged at the other end of the mounting frame 6, and the meshing structure 5 is arranged in the interior of the mounting frame 6, thereby increasing the connection stability of the meshing structure 5, the driving member 4 and the conveying shaft 2, and further ensuring the transmission efficiency between the driving member 4 and the conveying shaft 2 and ensuring that the driving member 4 and the conveying shaft 2 can be disconnected.

[0057] Further, the conveying pipe 1 has a conveying start end and a conveying end opposite to the conveying start end, the conveying start end is arranged in an open manner, and the conveying shaft 2 extends into the conveying pipe 1 through the conveying start end, and the conveying end is arranged in a closed manner, so that the glue outlet is located on the peripheral surface of the conveying pipe 1, thereby avoiding the situation that the glue output is not easy to control due to the glue outlet arranged at the end of the conveying pipe 1, and further ensuring the accuracy of dispensing.

[0058] Further, referring to Figure 1 , Figure 2 and Figure 4 , the conveying pipe 1 includes a first half pipe 11, a second half pipe 12 arranged opposite to the first half pipe 11, and a locking ring 13 sleeved on the outside of the first half pipe 11 and the second half pipe 12, and the first half pipe 11 and the second half pipe 12 form a conveying channel for accommodating the conveying shaft 2 and conveying glue.

[0059] Since the conveying pipe 1 comprises the first half pipe 11 and the second half pipe 12, the conveying pipe 1 can be taken off after the gelatin is solidified in the conveying pipe 1, the locking ring 13 is taken off from the conveying pipe 1, then the first half pipe 11 and the second half pipe 12 are separated, and the solidified gelatin in the first half pipe 11 and the second half pipe 12 and the solidified gelatin on the spiral blade 3 are cleaned, so that the solidified gelatin in the conveying pipe 1 is conveniently cleaned.

[0060] Specifically, the gelatin inlet is arranged on the first half pipe 11, and the gelatin outlet is arranged on the second half pipe 12.

[0061] Further, referring to Figure 4 , one of the first half pipe 11 and the second half pipe 12 is provided with a sealing groove 111, and the other is provided with a sealing rib 121 extending into the sealing groove 111.

[0062] After the first half pipe 11 and the second half pipe 12 are assembled together, the sealing rib 121 extends into the sealing groove 111 to increase the connection sealing property of the first half pipe 11 and the second half pipe 12, so that the overflow of the gelatin through the gap between the first half pipe 11 and the second half pipe 12 is avoided, and the precision of the gelatin dispensing is ensured.

[0063] In addition, since the conveying end of the conveying pipe 1 is closed, the cooperation of the sealing rib 121 and the sealing groove 111 at the conveying end can limit the first half pipe 11 and the second half pipe 12 to align, and further ensure the connection sealing property of the first half pipe 11 and the second half pipe 12.

[0064] Further, referring to Figure 1 and Figure 2 , the gelatin dispensing pump further comprises a mounting frame 6 provided with a connecting sleeve 61 sleeved on the outside of the conveying pipe 1, and the conveying pipe 1 is threadedly connected with the connecting sleeve 61, so that the connection stability of the first half pipe 11 and the second half pipe 12 is increased, and the overflow of the gelatin through the gap between the first half pipe 11 and the second half pipe 12 is avoided.

[0065] In a preferred embodiment, referring to Figure 1 and Figure 2 , the conveying pipe 1 is provided with a gelatin inlet nozzle 112 threadedly connected with the gelatin inlet, so that when the locking ring 13 is disassembled, the gelatin inlet nozzle 112 can be taken off from the conveying pipe 1, the disassembly of the locking ring 13 caused by the existence of the gelatin inlet nozzle 112 is avoided, the disassembly efficiency of the conveying pipe 1 is ensured, and the gelatin inlet nozzle 112 is conveniently replaced.

[0066] In a preferred embodiment, referring to Figure 1 andFigure 2 The delivery pipe 1 is provided with a glue outlet nozzle 122 which is threadedly connected to the glue outlet. When the locking ring 13 is disassembled, the glue outlet nozzle 122 can be removed from the delivery pipe 1, so that the locking ring 13 cannot be disassembled due to the presence of the glue outlet nozzle 122, thereby ensuring the disassembly efficiency of the delivery pipe 1. Meanwhile, the glue outlet nozzle 122 can be conveniently replaced.

[0067] The structure of the driving member 4 is not limited in the present application. Preferably, the driving member 4 is a pneumatic motor to drive the delivery shaft 2. In other embodiments, the driving member 4 can also be an electric motor, a servo motor or other structures capable of driving the delivery shaft 2 to rotate.

[0068] In a preferred embodiment, referring to Figure 1 and Figure 2 The driving member 4 and the meshing structure 5 are provided with a speed reducer 7. The input shaft of the speed reducer 7 is in driving connection with the output shaft of the driving member 4, and the output shaft of the speed reducer 7 is in driving connection with the synchronous shaft 51, so as to reduce the rotation speed of the delivery shaft 2 and improve the accuracy of the glue delivery.

[0069] It should be noted that the driving connection between the speed reducer 7 and the driving member 4 and the synchronous shaft 51 can be fixed connection, and can also be driving connection through a shaft coupling.

[0070] The unmentioned parts in the present application can be realized by using or referring to the existing technology.

[0071] Each embodiment in the present specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other. Each embodiment mainly describes the differences from other embodiments.

[0072] The above only describes the embodiments of the present application and is not intended to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A dispensing pump, comprising: The device comprises a conveying pipe (1), a conveying shaft (2) arranged inside the conveying pipe (1), a spiral blade (3) arranged outside the conveying shaft (2), and a driving member (4) arranged at one end of the conveying pipe (1). The conveying pipe (1) is provided with an inlet opening at the end close to the driving member (4), and an outlet opening at the end away from the driving member (4). The output shaft of the driving member (4) is in transmission connection with the conveying shaft (2) through a meshing structure (5). The meshing structure (5) can realize synchronous rotation or disconnection of transmission with the conveying shaft (2) under the rotation load of the conveying shaft (2).

2. The pump of claim 1, wherein, The meshing structure (5) comprises a synchronous shaft (51) in transmission connection with the output shaft of the driving member (4), a synchronous sleeve (52) sleeved on the synchronous shaft (51), and an elastic member (53) arranged on the synchronous shaft (51) and acting on the synchronous sleeve (52). The synchronous sleeve (52) can slide along the axial direction of the synchronous shaft (51) and can rotate with the synchronous shaft (51). The elastic member (53) is used to apply force to the synchronous sleeve (52) towards the conveying shaft (2). The end faces of the synchronous sleeve (52) and the conveying shaft (2) are provided with teeth (522) that mesh with each other.

3. The pump of claim 2, wherein: The cross section of the synchronous shaft (51) perpendicular to its axial direction is polygonal. The synchronous sleeve (52) has a central hole matched with the synchronous shaft (51). The synchronous shaft (51) is arranged in the central hole. The teeth (522) arranged on the synchronous sleeve (52) are arranged along the circumferential direction of the central hole.

4. The pump of claim 2, wherein, The synchronous sleeve (52) is provided with a blocking portion (521). The synchronous shaft (51) is provided with a stop portion (511) on the side away from the driving member (4). The blocking portion (521) and the stop portion (511) are in stop cooperation in the axial direction of the synchronous shaft (51).

5. The pump of claim 1, wherein, The dispensing pump further comprises a mounting frame (6). The driving member (4) is arranged at one end of the mounting frame (6). The conveying pipe (1) is arranged at the other end of the mounting frame (6). The meshing structure (5) is arranged inside the mounting frame (6).

6. The pump of claim 1, wherein, The conveying pipe (1) has a conveying start end and a conveying end opposite to the conveying start end. The conveying start end is provided with an open end. The conveying shaft (2) extends into the conveying pipe (1) through the conveying start end. The conveying end is provided with a closed end.

7. The pump of claim 1, wherein, The conveying pipe (1) comprises a first half pipe (11), a second half pipe (12) arranged opposite to the first half pipe (11), and a locking ring (13) sleeved outside the first half pipe (11) and the second half pipe (12). The first half pipe (11) and the second half pipe (12) form a conveying channel for conveying glue and accommodating the conveying shaft (2) therebetween.

8. The pump of claim 7, wherein, One of the first half pipe (11) and the second half pipe (12) is provided with a sealing groove (111). The other one is provided with a sealing rib (121) extending into the sealing groove (111).

9. The pump of claim 1, wherein, The point glue pump further comprises a mounting frame (6) provided with a connecting sleeve (61) sleeved outside the conveying pipe (1), and the conveying pipe (1) is threadedly connected with the connecting sleeve (61).

10. The pump of claim 1, wherein, The conveying pipe (1) is provided with a glue inlet nozzle (112) threadedly connected with the glue inlet; And / or, the conveying pipe (1) is provided with a glue outlet nozzle (122) threadedly connected with the glue outlet.

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