Suction pipe assembly device for pump head

Abstract

The utility model discloses a pump head's straw assembly device belongs to daily chemical packaging technical field, and the pump head's straw assembly device of this utility model includes frame, limiting mechanism, clamping mechanism and cutting mechanism, and the frame is provided with the fixture for clamping pump head, and the limiting mechanism sets up on the frame, and the limiting mechanism is configured to restrict the pump head in the fixture and move upward, and the clamping mechanism can be set on the frame and can be lifted, and the clamping mechanism is configured to clamp and release the straw, and the cutting mechanism can be set on the upper end of clamping mechanism and can be lifted, and the cutting mechanism is provided with elastic member between the cutting mechanism and clamping mechanism, and the cutting mechanism is configured to cut off the straw. The technical scheme of the utility model realizes the full process automation of straw automatic grabbing, fixed length cutting and accurate socketing, not only improves production efficiency and product consistency, but also effectively avoids the problems of liquid leakage caused by straw socketing skew, damage or not tight sealing, improves production quality while reducing labor production cost.

Description

Technical Field

[0001] This utility model relates to the field of daily chemical packaging technology, and in particular to a suction tube assembly device for a pump head. Background Technology

[0002] Liquid packaging containers, such as bottles for daily chemical products like shampoo, shower gel, and hand sanitizer, widely use manual or automatic pump heads for metered dispensing. A pump head typically consists of a pump head, a locking cap, a pump core, and a straw. The straw needs to be precisely assembled onto the liquid inlet at the bottom of the pump core to ensure the product's sealing and functionality.

[0003] In existing technologies, the assembly of the suction tube and pump core still relies primarily on manual operation. Specifically, operators must individually grasp the soft, easily deformable suction tube, align it with the small inlet at the bottom of the pump core, and apply appropriate force by feel to insert the tube to the predetermined depth. This manual operation method is not only inefficient, becoming a bottleneck restricting the automation of the overall pump head assembly and the improvement of production cycle time, but also suffers from significantly insufficient assembly quality stability due to factors such as operator fatigue, differences in skill level, and subjective judgment. This can lead to sealing failure of the packaging container later, resulting in serious quality problems such as leakage or poor suction. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a suction tube assembly device for a pump head, which can automatically complete the suction tube assembly, improving production efficiency while ensuring stable assembly quality.

[0005] The suction tube assembly device for a pump head according to an embodiment of the present invention includes: a frame with a fixture for clamping the pump head; a limiting mechanism on the frame, configured to constrain the pump head within the fixture to move upward; a clamping mechanism on the frame, movably mounted and positioned below the fixture, configured to clamp and release the suction tube; and a cutting mechanism on the upper end of the clamping mechanism, movably mounted and positioned below the fixture, with an elastic element between the cutting mechanism and the clamping mechanism, configured to cut the suction tube.

[0006] It has at least the following beneficial effects: The frame is equipped with a fixture for clamping the pump head. A limiting mechanism is fixedly installed on the frame and located above the fixture. The clamping mechanism is vertically mounted on the frame and located below the fixture. The cutting mechanism is vertically mounted above the clamping mechanism. An elastic element is provided between the cutting mechanism and the clamping mechanism to form an elastic connection between the two. During assembly, the pump head is fixed in the fixture and pressed and positioned by the limiting mechanism. Under the clamping action of the clamping mechanism, the suction tube passes through the clamping mechanism and the cutting mechanism from bottom to top. The clamping mechanism drives the suction tube to move upward. The cutting mechanism first contacts the bottom of the pump head and stops rising due to obstruction. At this time, the clamping mechanism overcomes the elastic force of the elastic element and continues to move upward, smoothly and reliably fitting the suction tube onto the liquid inlet at the bottom of the pump head. Then, the clamping mechanism releases the suction tube and drives the cutting mechanism to move downward synchronously until the suction tube reaches the predetermined length. The clamping mechanism clamps the suction tube again, and the cutting mechanism cuts it off. Finally, the clamping mechanism descends and resets, ready for the next assembly cycle. The technical solution of this utility model realizes the full automation of straw automatic gripping, fixed-length cutting and precise splicing, which not only improves production efficiency and product consistency, but also effectively avoids leakage problems caused by straw misalignment, damage or poor sealing, thereby improving production quality while reducing labor production costs.

[0007] According to some embodiments of the present invention, the limiting mechanism includes: a first driving member, which is disposed on the frame; and a punch, which is disposed at the output end of the first driving member. The punch is located above the fixture and is coaxially aligned with the fixture in the vertical direction. The first driving member is configured to drive the punch to move up and down.

[0008] According to some embodiments of this utility model, a buffer is provided at the bottom of the punch.

[0009] According to some embodiments of the present invention, the clamping mechanism includes: a first mounting base, which is movably mounted on a frame; a first clamping member, which is fixedly mounted on the first mounting base, and the first clamping member has a first clamping groove extending in the vertical direction; a second driving member, which is fixedly mounted on the first mounting base; a second clamping member, which is connected to the output end of the second driving member, and the second clamping member has a second clamping groove extending in the vertical direction, the end face of the second clamping member with the second clamping groove is opposite to the end face of the first clamping member with the first clamping groove, and the second driving member can drive the second clamping member to approach the first clamping member so that the first clamping groove and the second clamping groove are connected to form a clamping channel.

[0010] According to some embodiments of the present invention, the cutting mechanism includes: a second mounting base, which is vertically and vertically mounted on a first mounting base via an elastic element; a limiting channel, which extends vertically on the second mounting base and is configured to limit the position of the suction tube; a third driving member, which is fixedly mounted on the second mounting base; a cutting blade, which is connected to the output end of the third driving member and extends horizontally; and a guide groove, which extends horizontally on the second mounting base and communicates with the limiting channel. The cutting blade passes through at least part of the guide groove, and the third driving member can drive the cutting blade to move along the guide groove to cut the suction tube in the limiting channel.

[0011] According to some embodiments of the present invention, the cutting mechanism further includes: a connecting seat connected to the output end of the third driving member, and a cutting blade mounted on the end of the connecting seat away from the third driving member; a guide post extending in the left-right direction and mounted between the second mounting seat and the third driving member, and the connecting seat being slidably sleeved on the guide post.

[0012] According to some embodiments of the present invention, the top of the limiting channel is provided with a flared part, the shape of which is adapted to the liquid inlet at the bottom of the pump head, and the flared part is configured to pre-position the suction tube before cutting.

[0013] According to some embodiments of this utility model, the elastic element is a compression spring.

[0014] According to some embodiments of the present invention, the cutting blade includes two cutting segments extending in the left-right direction. The two cutting segments are symmetrically arranged on the connecting seat, and the two cutting segments are connected to each other in the length direction, forming an included angle between the two cutting segments.

[0015] According to some embodiments of the present invention, a drive mechanism is also included. The drive mechanism is mounted on the frame and connected to the clamping mechanism. The drive mechanism is configured to drive the clamping mechanism to lift and lower.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the suction tube assembly device for the pump head in an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the clamping mechanism; Figure 3 for Figure 1 Schematic diagram of the cutting mechanism; Figure 4 for Figure 1 Cross-sectional view of the image.

[0018] Icon labels: Frame 1, Fixture 11; Limiting mechanism 2, first driving component 21, punch 22, buffer component 221; Clamping mechanism 3, first mounting base 31, first clamping member 32, second driving member 33, second clamping member 34, clamping channel 35, first clamping groove 351, second clamping groove 352; Cutting mechanism 4, second mounting base 41, limiting channel 42, flared part 421, third driving component 43, cutting blade 44, cutting section 441, guide groove 45, connecting seat 46, guide post 47; Elastic element 5; Drive mechanism 6; Pump head 7; 8. Straws Detailed Implementation

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figure 1This utility model discloses a suction tube assembly device for a pump head 7, including a frame 1, a limiting mechanism 2, a clamping mechanism 3, and a cutting mechanism 4. The frame 1 is provided with a fixture 11 for clamping the pump head 7. The limiting mechanism 2 is provided on the frame 1 and is configured to constrain the pump head 7 within the fixture 11 to move upward. The clamping mechanism 3 is movably mounted on the frame 1 and is located below the fixture 11. The clamping mechanism 3 is configured to clamp and release the suction tube 8. The cutting mechanism 4 is movably mounted above the clamping mechanism 3 and is located below the fixture 11. An elastic element 5 is provided between the cutting mechanism 4 and the clamping mechanism 3. The cutting mechanism 4 is configured to cut the suction tube 8.

[0023] like Figure 1 As shown, the frame 1 is equipped with a fixture 11 for clamping the pump head 7, ensuring that the pump head 7 remains stably positioned during assembly. A limiting mechanism 2 is fixedly mounted on the frame 1 and located above the fixture 11, used to constrain the pump head 7 within the fixture 11 from moving upwards, preventing displacement during assembly. A clamping mechanism 3 is vertically mounted on the frame 1 and located below the fixture 11, used to clamp and release the suction tube 8. A cutting mechanism 4 is vertically mounted above the clamping mechanism 3, used to cut the suction tube 8 to a specified length. An elastic element 5 is provided between the cutting mechanism 4 and the clamping mechanism 3, forming an elastic connection between the two.

[0024] During assembly, the pump head 7 is fixed in the fixture 11 and pressed and positioned by the limiting mechanism 2. The suction tube 8 is inserted from bottom to top between the clamping mechanism 3 and the cutting mechanism 4 under the clamping action of the clamping mechanism 3. The clamping mechanism 3 drives the suction tube 8 to move upward. The cutting mechanism 4 first contacts the bottom of the pump head 7 and stops rising due to obstruction. At this time, the clamping mechanism 3 overcomes the elastic force of the elastic element 5 and continues to move upward, and smoothly and reliably fits the suction tube 8 onto the liquid inlet at the bottom of the pump head 7. Then the clamping mechanism 3 releases the suction tube 8 and drives the cutting mechanism 4 to move downward synchronously until the suction tube 8 reaches the predetermined length. The clamping mechanism 3 clamps the suction tube 8 again, and the cutting mechanism 4 cuts it off. Finally, the clamping mechanism 3 descends and resets, ready for the next assembly cycle. The technical solution of this utility model realizes the full automation of the process of automatic gripping, fixed-length cutting and precise splicing of straw 8, which not only improves production efficiency and product consistency, but also effectively avoids leakage problems caused by misalignment, damage or poor sealing of straw 8, thereby improving production quality while reducing labor production costs.

[0025] It should be noted that the fixture 11 is designed according to the outline of the pump head 7. The pump head 7 is inserted into the fixture 11 and its bottom is suspended, providing space for the operation of the clamping mechanism 3 and the cutting mechanism 4 below, so that the suction tube 8 can be accurately connected to the liquid inlet at the bottom of the pump head 7 from below.

[0026] In some specific embodiments of this utility model, the elastic element 5 is a compression spring.

[0027] In some specific embodiments of this utility model, the limiting mechanism 2 includes a first driving member 21 and a punch 22. The first driving member 21 is mounted on the frame 1; the punch 22 is mounted at the output end of the first driving member 21, and the punch 22 is located above the fixture 11 and coaxially aligned with the fixture 11 in the vertical direction. The first driving member 21 is configured to drive the punch 22 to move up and down. Figure 1 As shown, the first driving component 21 is fixedly mounted on the frame 1, and the punch 22 is located at the output end of the first driving component 21 and directly above the fixture 11, with its axis coaxial with the fixture 11 in the vertical direction. During operation, when the pump head 7 is placed in the fixture 11, the first driving component 21 drives the punch 22 to move downward, and the punch 22 abuts against the top of the pump head 7, thereby effectively restraining the pump head 7 from any upward displacement that may occur during the subsequent connection of the suction tube 8, ensuring its stable and reliable positioning.

[0028] In some specific embodiments of this utility model, the first driving element 21 is preferably a linear driving element, which may be selected from, but is not limited to, a cylinder, an electric cylinder or a linear motor.

[0029] In some specific embodiments of this utility model, a buffer 221 is provided at the bottom of the punch 22. When the punch 22 is pressed down and contacts the top of the pump head 7 under the action of the first driving member 21, the buffer 221 can effectively absorb the impact energy, avoid the surface damage or deformation of the pump head 7 that may be caused by rigid contact, and thus improve the yield rate of the assembly process.

[0030] In some specific embodiments of this utility model, the clamping mechanism 3 includes a first mounting base 31, a first clamping member 32, a second driving member 33, and a second clamping member 34. The first mounting base 31 is vertically mounted on the frame 1. The first clamping member 32 is fixedly mounted on the first mounting base 31. The first clamping member 32 has a first clamping groove 351 extending in the vertical direction. The second driving member 33 is fixedly mounted on the first mounting base 31. The second clamping member 34 is connected to the output end of the second driving member 33. The second clamping member 34 has a second clamping groove 352 extending in the vertical direction. The end face of the second clamping member 34 with the second clamping groove 352 is opposite to the end face of the first clamping member 32 with the first clamping groove 351. The second driving member 33 can drive the second clamping member 34 to approach the first clamping member 32 so that the first clamping groove 351 and the second clamping groove 352 are connected to form a clamping channel 35.

[0031] like Figure 2As shown, the first mounting base 31 is vertically and flexibly mounted on the frame 1. The first clamping member 32 is fixedly embedded in the groove provided in the first mounting base 31, and the first clamping member 32 has a first clamping groove 351 extending in the vertical direction. The second driving member 33 is fixedly mounted on the first mounting base 31, and the output end of the second driving member 33 is connected to the second clamping member 34. The second clamping member 34 also has a second clamping groove 352 extending in the vertical direction. The end face of the second clamping member 34 with the second clamping groove 352 is directly opposite to the end face of the first clamping member 32 with the first clamping groove 351, so that the first clamping groove 351 and the second clamping groove 352 are horizontally corresponding. The second driving member 33 can drive the second clamping member 34 to move towards the first clamping member 32. When the second clamping member 34 approaches the first clamping member 32, their end faces abut against each other. At this time, the first clamping groove 351 and the second clamping groove 352 mate with each other and together form a clamping channel 35 for reliably clamping the straw 8. Thus, by controlling the opening and closing of the first clamping member 32 and the second clamping member 34 through the second driving member 33, the automatic clamping and release of the straw 8 is realized. Its clamping action is stable and reliable, and the design of the clamping grooves extending in the vertical direction facilitates the smooth insertion and positioning of the straw 8, providing a foundation for subsequent cutting and splicing processes.

[0032] In some specific embodiments of this utility model, the cutting mechanism 4 includes a second mounting base 41, a limiting channel 42, a third driving member 43, a cutting blade 44, and a guide groove 45. The second mounting base 41 is vertically mounted on a first mounting base 31 via an elastic member 5. The limiting channel 42 extends vertically on the second mounting base 41 and is configured to limit the position of the suction tube 8. The third driving member 43 is fixedly mounted on the second mounting base 41. The cutting blade 44 is connected to the output end of the third driving member 43 and extends horizontally. The guide groove 45 extends horizontally on the second mounting base 41 and communicates with the limiting channel 42. The cutting blade 44 is at least partially inserted into the guide groove 45. The third driving member 43 can drive the cutting blade 44 to move along the guide groove 45 to cut the suction tube 8 in the limiting channel 42.

[0033] like Figure 3As shown, the second mounting base 41 is disposed on top of the first mounting base 31 via an elastic element 5, and the second mounting base 41 can be raised and lowered relative to the first mounting base 31. Specifically, the second mounting base 41 and the first mounting base 31 are connected by a telescopic rod, and a compression spring, which serves as the elastic element 5, is sleeved on the outer periphery of the telescopic rod. The limiting channel 42 is disposed on the second mounting base 41 extending in the vertical direction, and the guide groove 45 is opened on the second mounting base 41 extending in the horizontal direction and communicating with the limiting channel 42. The third driving member 43 is fixedly mounted on the second mounting base 41, and its output end is connected to a cutting blade 44 extending in the horizontal direction. The cutting blade 44 is located between the second mounting base 41 and the third driving member 43, and at least part of it passes through the guide groove 45, so that the third driving member 43 can drive the cutting blade 44 to move smoothly along the guide groove 45, thereby accurately cutting the straw 8 contained in the limiting channel 42. Therefore, during the cutting process, the third drive unit 43 is activated, driving the cutting blade 44 to move laterally in a straight line along the guide groove 45. Under the precise guidance of the guide groove 45, the cutting blade 44 smoothly cuts the suction tube 8 located in the limiting channel 42 laterally. After the cutting action is completed, the third drive unit 43 drives the cutting blade 44 to return to its original position along the original path, preparing for the next cutting operation.

[0034] It should be noted that the second mounting base 41 is connected to the first mounting base 31 through the elastic element 5. When the cutting mechanism 4 rises as a whole and encounters resistance, the elastic element 5 allows relative displacement between the second mounting base 41 and the first mounting base 31 to avoid the equipment being subjected to rigid impact.

[0035] Preferably, the limiting channel 42 and the clamping channel 35 are coaxially aligned.

[0036] In some specific embodiments of this utility model, the cutting mechanism 4 further includes a connecting seat 46 and a guide post 47. The connecting seat 46 is connected to the output end of the third driving member 43. The cutting blade 44 is installed on the end of the connecting seat 46 away from the third driving member 43, extending in the left and right direction. The guide post 47 is installed between the second mounting seat 41 and the third driving member 43. The connecting seat 46 can be slidably sleeved on the guide post 47.

[0037] like Figure 3As shown, the connecting seat 46 is fixedly connected to the output end of the third driving member 43, and the cutting blade 44 is mounted through the connecting seat 46 and extends away from the third driving member 43. The guide post 47 is fixedly mounted on the second mounting seat 41 in the left-right direction. The connecting seat 46 has a guide hole that mates with the guide post 47, allowing it to slide onto the guide post 47. When the third driving member 43 drives the connecting seat 46 and the cutting blade 44 to move laterally in a linear motion, the cooperation between the guide post 47 and the guide hole provides reliable guidance and support for the entire movement, effectively enhancing the stability of the cutting blade 44 during movement and preventing it from deflecting or vibrating during the cutting process, thereby further ensuring cutting accuracy and cut surface quality.

[0038] It should be noted that the first drive unit 21, the second drive unit 33 and the third drive unit 43 can be linear drive components such as cylinders, electric cylinders or servo motors.

[0039] In some specific embodiments of this utility model, a flared portion 421 is provided at the top of the limiting channel 42. The shape of the flared portion 421 is adapted to the liquid inlet at the bottom of the pump head 7. The flared portion 421 is configured to pre-position the suction tube 8 before cutting. The clamping mechanism 3 clamps the suction tube 8 and moves it upward, driving the cutting mechanism 4 to rise synchronously. When the flared portion 421 at the top of the second mounting base 41 contacts and abuts against the bottom of the pump head 7, the bottom of the pump head 7 is embedded in the flared portion 421, so that the liquid inlet at the bottom of the pump head 7 automatically keeps coaxially aligned with the limiting channel 42, thereby guiding and initially centering the top of the suction tube 8, completing the pre-positioning. Subsequently, the second mounting base 41 stops moving upward due to obstruction, while the first mounting base 31 continues to move upward against the elastic force of the elastic member 5, while smoothly and reliably fitting the suction tube 8 onto the liquid inlet at the bottom of the pump head 7.

[0040] In some specific embodiments of this utility model, the cutting blade 44 includes two cutting segments 441 extending in the left-right direction. The two cutting segments 441 are symmetrically arranged on the connecting seat 46, and the two cutting segments 441 are connected to each other along the length direction, forming an included angle between the two cutting segments 441. Figure 3 As shown, two cutting segments 441 are symmetrically fixed on the connecting seat 46 and connected along their long side, so that the two cutting segments 441 form an angle with a specific angle, and the whole has an obtuse V-shaped structure.

[0041] In some specific embodiments of this utility model, a drive mechanism 6 is also included. The drive mechanism 6 is mounted on the frame 1 and connected to the clamping mechanism 3. The drive mechanism 6 is configured to drive the clamping mechanism 3 to move up and down. In this specific embodiment, the drive mechanism 6 uses a slide rail and slider assembly to achieve the lifting drive. Specifically, the drive mechanism 6 includes a slide rail, a slider, and a drive source. The slide rail is fixedly mounted on the frame 1 in the vertical direction. The slider and the slide rail form a sliding pair and can slide up and down along the slide rail. The first mounting base 31 is fixedly connected to the slider. The drive source is fixedly mounted on the frame 1, and its output end is connected to the slider to drive the slider to drive the entire clamping mechanism 3 to make a stable lifting and lowering movement along the slide rail.

[0042] Of course, the drive mechanism 6 can also be a linear module, a cylinder or a hydraulic cylinder. The drive mechanism 6 is fixedly installed on the frame 1, and its output end is rigidly connected to the first mounting seat 31 of the clamping mechanism 3 through a connecting plate or flange.

[0043] The following is based on Figures 1 to 4 The structure shown further illustrates the technical solution of this utility model embodiment.

[0044] The fixture 11 is set on the worktable of the frame 1 and is precision machined according to the outline of the pump head 7. The pump head 7 is inserted into the fixture 11 from top to bottom, so that its bottom is suspended, leaving space for operation below. The limiting mechanism 2 includes a first cylinder and a punch 22. The cylinder is fixed on the top crossbeam of the frame 1, and the punch 22 is installed at the end of the piston rod of the first cylinder, and its position is coaxially aligned with the fixture 11. A polyurethane buffer 221 is bonded to the bottom of the punch 22. When the pump head 7 is placed into the fixture 11, the cylinder pushes the punch 22 downward, and the buffer 221 presses the top of the pump head 7 to prevent it from moving upward during assembly. The drive mechanism 6 includes a slide rail and a slider, and the clamping mechanism 3 includes a first mounting base 31, a first clamping member 32, a second cylinder, and a second clamping member 34. The slide rail is vertically fixed on the frame 1, the slider cooperates with the slide rail and is fixedly connected to the first mounting base 31, the first clamping member 32 is fixed on the first mounting base 31 and has a first clamping groove 351 extending in the vertical direction, the second cylinder is fixed on the first mounting base 31, the second clamping member 34 is connected to the output end of the second cylinder and has a second clamping groove 352 extending in the vertical direction. When the second cylinder drives the second clamping member 34 to approach the first clamping member 32, the two clamping grooves are joined to form a clamping channel 35 to clamp the suction tube 8. The cutting mechanism 4 includes a second mounting base 41, a limiting channel 42, a third cylinder, a cutting blade 44, a guide groove 45, a connecting base 46, and guide posts 47. The second mounting base 41 is connected to the first mounting base 31 by a telescopic rod, and a compression spring is sleeved on the outer periphery of the telescopic rod. The second mounting base 41 is elastically connected to the first mounting base 31 through the telescopic rod and the sleeved compression spring. The limiting channel 42 is opened on the second mounting base 41 in the vertical direction, and its top is provided with a flared part 421 that matches the bottom shape of the pump head 7. The third cylinder is fixed on the second mounting base 41. The connecting base 46 is connected to the piston rod of the third cylinder and is slidably sleeved on two guide posts 47 that are respectively fixed parallel to the second mounting base 41 and the third driving member 43 through linear bearings. The cutting blade 44 is installed at the end of the connecting base 46 and includes two symmetrically arranged cutting segments 441 that are connected to each other along their long sides. The two cutting segments 441 form an obtuse angle structure with the opening facing downwards, and the cutting edge penetrates into the guide groove 45 opened horizontally in the second mounting base 41. It should be noted that in this specific embodiment, the first cylinder, punch 22, fixture 11, first clamping member 32, second clamping member 34, limiting channel 42, clamping channel 35 and cutting blade 44 are all arranged symmetrically side by side to form two independent and synchronously operating assembly stations, which can simultaneously complete the assembly of the suction pipes 8 of the two pump heads 7, thereby significantly improving the production efficiency of the equipment.

[0045] The pump head 7 is positioned in the fixture 11, and the suction tube 8 is inserted from bottom to top into the clamping channel 35 and the limiting channel 42. The first cylinder pushes the punch 22 down to secure the top of the pump head 7. The drive mechanism 6 drives the first mounting base 31 to move upward. When the flared part 421 at the top of the second mounting base 41 contacts the bottom of the pump head 7, the bottom of the pump head 7 is embedded in the flared part 421 to achieve pre-positioning. The second mounting base 41 then stops moving upward. At this time, the first mounting base 31 continues to move upward relative to the pump head 7, overcoming the spring force, and smoothly attaches the clamped suction tube 8 to the liquid inlet at the bottom of the pump head 7. Subsequently, the second cylinder drives the second clamping member 34 away from the first clamping member 32 to release the suction tube 8. The drive mechanism 6 moves the first mounting base 31 downward. When the suction tube 8 between the top of the second mounting base 41 and the bottom of the pump head 7 reaches the predetermined length, the second cylinder drives the second clamping member 34 again to clamp the suction tube 8. The third cylinder starts and drives the cutting blade 44 to move laterally in a straight line along the guide groove 45, smoothly cutting the suction tube 8 in the limiting channel 42. After the cutting is completed, the third cylinder drives the cutting blade 44 to return to its original position. Finally, the drive mechanism 6 moves the first mounting base 31 downward again, so that the assembled pump head 7 and suction tube 8 are completely separated from the second mounting base 41. After the assembled pump head 7 is transferred to the next station, all mechanisms are reset, ready for the next assembly cycle.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A suction tube assembly device for a pump head, characterized in that, include: The frame (1) is equipped with a fixture (11) for holding the pump head (7). A limiting mechanism (2) is provided on the frame (1), and the limiting mechanism (2) is configured to constrain the pump head (7) in the fixture (11) to move upward; The clamping mechanism (3) is vertically mounted on the frame (1) and is located below the fixture (11). The clamping mechanism (3) is configured to clamp and release the suction tube (8). The cutting mechanism (4) is vertically mounted on the upper end of the clamping mechanism (3). The cutting mechanism (4) is located below the fixture (11). An elastic element (5) is provided between the cutting mechanism (4) and the clamping mechanism (3). The cutting mechanism (4) is configured to cut the suction tube (8).

2. The suction pipe assembly device for the pump head according to claim 1, characterized in that, The limiting mechanism (2) includes: The first drive unit (21) is mounted on the frame (1); A punch (22) is disposed at the output end of the first drive member (21). The punch (22) is located above the fixture (11) and is coaxially aligned with the fixture (11) in the vertical direction. The first drive member (21) is configured to drive the punch (22) to move up and down.

3. The suction pipe assembly device for the pump head according to claim 2, characterized in that, The bottom of the punch (22) is provided with a buffer (221).

4. The suction pipe assembly device for the pump head according to claim 3, characterized in that, The clamping mechanism (3) includes: The first mounting base (31) is vertically mounted on the frame (1); The first clamping member (32) is fixedly disposed on the first mounting base (31), and the first clamping member (32) has a first clamping groove (351) extending in the vertical direction. The second driving component (33) is fixedly mounted on the first mounting base (31); The second clamping member (34) is connected to the output end of the second driving member (33). The second clamping member (34) has a second clamping groove (352) extending in the vertical direction. The end face of the second clamping member (34) with the second clamping groove (352) is opposite to the end face of the first clamping member (32) with the first clamping groove (351). The second driving member (33) can drive the second clamping member (34) to approach the first clamping member (32) so that the first clamping groove (351) and the second clamping groove (352) are connected to form a clamping channel (35).

5. The suction pipe assembly device for the pump head according to claim 4, characterized in that, The cutting mechanism (4) includes: The second mounting base (41) is vertically mounted on the first mounting base (31) via the elastic element (5); A limiting channel (42) is provided on the second mounting base (41) extending in the vertical direction, and the limiting channel (42) is configured to limit the position of the straw (8); The third driving component (43) is fixedly mounted on the second mounting base (41); The cutting blade (44) is connected to the output end of the third driving member (43), and the cutting blade (44) extends in the left-right direction; A guide groove (45) is provided on the second mounting base (41) extending in the left-right direction. The guide groove (45) is connected to the limiting channel (42). The cutting blade (44) is at least partially inserted into the guide groove (45). The third driving member (43) can drive the cutting blade (44) to move along the guide groove (45) to cut the suction tube (8) in the limiting channel (42).

6. The suction pipe assembly device for the pump head according to claim 5, characterized in that, The cutting mechanism (4) further includes: A connecting seat (46) is connected to the output end of the third driving member (43), and the cutting blade (44) is installed at the end of the connecting seat (46) away from the third driving member (43); The guide post (47) is installed between the second mounting base (41) and the third drive member (43) in a left-right direction, and the connecting base (46) is slidably sleeved on the guide post (47).

7. The suction pipe assembly device for the pump head according to claim 6, characterized in that, The top of the limiting channel (42) is provided with a flared part (421), the shape of which is adapted to the liquid inlet at the bottom of the pump head (7), and the flared part (421) is configured to pre-position the suction tube (8) before cutting.

8. The suction pipe assembly device for the pump head according to claim 1, characterized in that, The elastic element (5) is a compression spring.

9. The suction pipe assembly device for the pump head according to claim 6, characterized in that, The cutting blade (44) includes two cutting segments (441) extending in the left-right direction. The two cutting segments (441) are symmetrically arranged on the connecting seat (46). The two cutting segments (441) are connected to each other in the length direction and form an angle between the two cutting segments (441).

10. The suction pipe assembly device for the pump head according to claim 1, characterized in that, It also includes a drive mechanism (6), which is mounted on the frame (1) and connected to the clamping mechanism (3). The drive mechanism (6) is configured to drive the clamping mechanism (3) to move up and down.

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