Automatic locking device for emulsion pump head

Abstract

The utility model discloses an automatic locking device of emulsion pump head belongs to daily chemical packaging technical field, and this automatic locking device of emulsion pump head includes frame, positioning mechanism, rotation stop mechanism, elevating system, rotating mechanism, pressure mechanism and locking piece, and positioning mechanism is configured as supporting and positioning pump head, rotation stop mechanism is configured as with main body cooperation to prevent main body circumferential rotation, locking piece can rotatably be arranged in the output of pressure mechanism, and locking piece is transmission connection with the output of rotating mechanism, and the wall surface of locking piece is provided with first rotation stop gear, and locking piece is configured as through first rotation stop gear and the first rotation stop rib of main column meshing, and pressure mechanism is configured as providing the sustained axial locking pressure to locking piece. The utility model can reduce the manual cost and operation intensity, also has improved locking precision and production efficiency, has guaranteed the homogeneity and reliability of product quality, and then satisfies the large -scale industrialization production demand.

Description

Technical Field

[0001] This utility model relates to the field of daily chemical packaging technology, and in particular to an automatic locking device for emulsion pump heads. Background Technology

[0002] In the field of daily chemical product packaging manufacturing, pump head assembly is one of the key steps. Among them, the locking process is a crucial assembly step, the purpose of which is to fix specific components to the product body by rotating and tightening to achieve functions such as sealing, connection, or anti-theft. The quality of the locking process directly affects the reliability of the product and the user experience. Therefore, ensuring the consistency and reliability of locking operation is a common and important technical requirement in manufacturing.

[0003] like Figure 1 and Figure 2 The emulsion pump head 8 shown typically consists of three parts: a main body 81, a locking cover 82 inserted into the main body 81, and a main column 83 inserted into the locking cover 82. The inner wall of the locking cover 82 has internal threads 821, and the outer wall of the main column 83 has external threads 831 that match the internal threads. Before the locking process, the locking cover 82 is fixedly connected to the main body 81, and the main column 83 is pre-placed inside the locking cover 82, but its external threads 831 are not yet engaged with the internal threads 821 on the inner wall of the locking cover 82. During the locking process, the main column 83 is rotated to engage the internal and external threads, thereby achieving axial displacement of the main column 83 until it is locked in place. It should be noted that, in order to ensure that the main column 83 can be effectively driven when rotating, the top of the main column 83 is evenly distributed with multiple first anti-rotation ribs 832, and the bottom of the main body 81 is evenly distributed with multiple second anti-rotation ribs 811. The two work together to transmit torque and constrain the circumferential rotation of the main column 83 by inserting tools during assembly or use, thereby completing a reliable locking operation.

[0004] Currently, the pump head tightening process generally relies on manual operation, with workers relying on feel to tighten the pump rod to the predetermined position. However, this method is highly subjective and cannot precisely control the torque or position during the tightening process. This can easily lead to the pump rod being screwed in too deeply or too shallowly, resulting in quality problems such as inaccurate discharge, pressing jamming, or pump body loosening. Consequently, the product defect rate remains high, and production efficiency is insufficient to meet the needs of large-scale industrialization. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an automatic locking device for emulsion pump heads, which can precisely control the locking force of the locking head, avoiding product quality problems caused by excessive tightness or looseness, thereby reducing the product defect rate and improving product quality consistency.

[0006] An automatic locking device for an emulsion pump head according to an embodiment of the present invention includes: a frame; a positioning mechanism disposed on the frame, the positioning mechanism being configured to support and position the pump head in a vertical direction; an anti-rotation mechanism disposed on the frame and located below the positioning mechanism, the anti-rotation mechanism being configured to cooperate with the main body to prevent circumferential rotation of the main body; a lifting mechanism disposed on the frame; a rotating mechanism installed at the output end of the lifting mechanism and located above the positioning mechanism; a pressurizing mechanism installed at the output end of the lifting mechanism and located above the positioning mechanism; and a locking member rotatably disposed at the output end of the pressurizing mechanism, the locking member being drively connected to the output end of the rotating mechanism, a first anti-rotation tooth being provided on the wall surface of the locking member, the locking member being configured to engage with a first anti-rotation rib of the main column through the first anti-rotation tooth, and the pressurizing mechanism being configured to provide continuous axial locking pressure to the locking member.

[0007] The invention offers at least the following advantages: the positioning mechanism first supports and fixes the pump head; then, the anti-rotation mechanism moves upward and engages with the main body to achieve circumferential limiting; the lifting mechanism drives the rotating mechanism, pressurizing mechanism, and locking component to move downward as a whole, causing the first anti-rotation tooth on the locking component to embed into the anti-rotation groove at the top of the main column; the pressurizing mechanism continuously applies downward axial pressure; simultaneously, the rotating mechanism drives the locking component to rotate, thereby causing the main column to rotate, so that the external threads on its outer wall engage with the internal threads on the inner wall of the lock cover, achieving precise screwing and locking. This invention achieves high-precision, automated operation of the pump head locking process, overcoming the problems of inconsistent tightening force and high product defect rates caused by differences in manual operation. It not only reduces labor costs and operational intensity but also improves locking accuracy and production efficiency, ensuring product quality uniformity and reliability, thus meeting the needs of large-scale industrial production. According to some embodiments of the present invention, the positioning mechanism includes: a support plate, which is horizontally arranged on the frame, and the support plate has clearance holes in the vertical direction; a fixing seat, which is arranged on the support plate, and the fixing seat has fixing holes at positions corresponding to the clearance holes, the fixing holes are coaxially arranged with the locking member, and the inner diameter of the fixing holes is adapted to the outer diameter of the main body.

[0008] According to some embodiments of this utility model, the diameter of the clearance hole is not less than the inner diameter of the fixing hole.

[0009] According to some embodiments of the present invention, the fixing base includes: a mounting plate disposed on a support plate; and a positioning sleeve disposed on one end of the mounting plate opposite to the support plate, the positioning sleeve extending in the vertical direction, and a fixing hole formed in the positioning sleeve.

[0010] According to some embodiments of the present invention, the anti-rotation mechanism includes: a first driving member, which is disposed on the frame; an anti-rotation block, which is disposed at the output end of the first driving member, and a second anti-rotation tooth is provided on the anti-rotation block. The first driving member is configured to drive the anti-rotation block to rise and fall, so that the second anti-rotation tooth engages with the second anti-rotation rib of the main body.

[0011] According to some embodiments of the present invention, the lifting mechanism includes: a second driving member, which is disposed on the frame; a mounting frame, which is connected to the output end of the second driving member; and a rotating mechanism and a pressurizing mechanism, which are both mounted on the mounting frame.

[0012] According to some embodiments of the present invention, the rotating mechanism includes: a third driving member, mounted on a mounting bracket; a driving wheel, disposed at the output end of the third driving member; and a driven wheel, coaxially fixedly connected to a locking member, with the driven wheel meshing with the driving wheel.

[0013] According to some embodiments of the present invention, the pressurizing mechanism includes: a fourth driving member mounted on a mounting bracket; a thrust seat disposed at the output end of the fourth driving member; and a planar bearing connected between the thrust seat and the locking member, wherein the planar bearing is configured to enable the locking member to rotate circumferentially relative to the thrust seat.

[0014] According to some embodiments of the present invention, the lifting mechanism further includes an upper bearing seat and a lower bearing seat mounted on the mounting frame. The upper bearing seat is located above the lower bearing seat. The upper end of the locking member is rotatably connected to the upper bearing seat, and the lower end of the locking member is rotatably connected to the lower bearing seat.

[0015] According to some embodiments of the present invention, the lifting mechanism further includes: a slide rail, which is arranged on the frame in the vertical direction; and a slider, which is arranged on the mounting frame and is slidably connected to the slide rail. The slide rail and the slider cooperate to guide the mounting frame to move smoothly in the vertical direction.

[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 pump head structure; Figure 2 for Figure 1 Cross-sectional view in the middle; Figure 3 This is a schematic diagram of the automatic locking device for the emulsion pump head according to an embodiment of the present invention; Figure 4 for Figure 3 Cross-sectional view in the middle; Figure 5 for Figure 4 Schematic diagram of the structure at point A; Figure 6 for Figure 4 A schematic diagram of the structure at point B.

[0018] Icon labels: Rack 1; Positioning mechanism 2, support plate 21, clearance hole 211, fixing seat 22, fixing hole 221, mounting plate 222, positioning sleeve 223; Anti-rotation mechanism 3, first driving component 31, anti-rotation block 32, second anti-rotation tooth 321; Lifting mechanism 4, second drive component 41, mounting bracket 42, upper bearing seat 43, lower bearing seat 44, slide rail 45, slider 46; Rotating mechanism 5, third driving component 51, driving wheel 52, driven wheel 53; Pressurization mechanism 6, fourth drive component 61, thrust seat 62, plane bearing 63; Locking component 7, first anti-rotation tooth 71; Pump head 8, main body 81, second anti-rotation rib 811, lock cover 82, internal thread 821, main column 83, external thread 831, first anti-rotation rib 832. Detailed Implementation 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.

[0019] 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 indicated, or implicitly indicating the order of the technical features indicated.

[0020] 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.

[0021] Reference Figure 1This utility model discloses an automatic locking device for an emulsion pump head, including a frame 1, a positioning mechanism 2, an anti-rotation mechanism 3, a lifting mechanism 4, a rotating mechanism 5, a pressurizing mechanism 6, and a locking element 7. The positioning mechanism 2 is mounted on the frame 1 and configured to support and position the pump head 8 in the vertical direction. The anti-rotation mechanism 3 is mounted on the frame 1 and located below the positioning mechanism 2, configured to cooperate with the main body 81 to prevent circumferential rotation of the main body 81. The lifting mechanism 4 is mounted on the frame 1. The rotating mechanism 6... The lifting mechanism 4 is installed at its output end and located above the positioning mechanism 2; the pressurizing mechanism 6 is installed at its output end and located above the positioning mechanism 2; the locking member 7 is rotatably disposed at the output end of the pressurizing mechanism 6, and the locking member 7 is connected to the output end of the rotating mechanism 5. The locking member 7 has a first anti-rotation tooth 71 on its wall surface, and the locking member 7 is configured to engage with the first anti-rotation rib 832 of the main column 83 through the first anti-rotation tooth 71. The pressurizing mechanism 6 is configured to provide continuous axial locking pressure to the locking member 7.

[0022] like Figure 3 As shown, the positioning mechanism 2 is mounted on the frame 1, which supports the pump head 8 to be assembled in the vertical direction for precise positioning. Below the positioning mechanism 2 is an anti-rotation mechanism 3, which engages with a corresponding structure at the bottom of the main body 81 during locking, effectively preventing the pump head 8 from rotating circumferentially. The lifting mechanism 4 is mounted on the frame 1, and its output end is equipped with both a rotating mechanism 5 and a pressurizing mechanism 6. Both the rotating mechanism 5 and the pressurizing mechanism 6 are located above the positioning mechanism 2. The lifting mechanism 4 can drive the rotating mechanism 5 and the pressurizing mechanism 6 to feed together in the vertical direction. The locking element 7 is rotatably mounted on the output end of the pressurizing mechanism 6, while maintaining a transmission connection with the output end of the rotating mechanism 5. It simultaneously receives axial pressure from the pressurizing mechanism 6 and rotational torque from the rotating mechanism 5. Further, as... Figure 4 and Figure 5 As shown, the locking member 7 has a first anti-rotation tooth 71 machined on its wall surface, which is used to engage with the first anti-rotation rib 832 at the top of the main column 83 during the downward movement, thereby reliably transmitting the rotational torque to the main column 83.

[0023] During operation, the positioning mechanism 2 first supports and fixes the pump head 8. Then, the anti-rotation mechanism 3 moves upward and engages with the main body 81 to achieve circumferential limiting. The lifting mechanism 4 drives the rotating mechanism 5, the pressurizing mechanism 6, and the locking component 7 to move downward as a whole, so that the first anti-rotation tooth 71 on the locking component 7 is embedded in the anti-rotation groove at the top of the main column 83. The pressurizing mechanism 6 continuously applies downward axial pressure, while the rotating mechanism 5 drives the locking component 7 to rotate, thereby causing the main column 83 to rotate, so that the external threads 831 on its outer wall engage with the internal threads 821 on the inner wall of the lock cover 82, achieving precise screwing and locking. The technical solution of this utility model realizes high-precision and automated operation of the pump head 8 locking process, overcoming the problems of inconsistent tightening force and high product defect rate caused by differences in feel during manual operation. It not only reduces labor costs and operational intensity, but also improves locking accuracy and production efficiency, ensuring the uniformity and reliability of product quality, thereby meeting the needs of large-scale industrial production.

[0024] In some specific embodiments of this utility model, the positioning mechanism 2 includes a support plate 21 and a fixed seat 22. The support plate 21 is horizontally arranged on the frame 1, and the support plate 21 has clearance holes 211 in the vertical direction. The fixed seat 22 is arranged on the support plate 21, and the fixed seat 22 has a fixing hole 221 at the position corresponding to the clearance hole 211. The fixing hole 221 is coaxially arranged with the locking member 7, and the inner diameter of the fixing hole 221 is adapted to the outer diameter of the main body 81. Figure 3 and Figure 4 As shown, the support plate 21 is horizontally fixedly mounted on the frame 1, and the support plate 21 has a through-hole 211. The fixing seat 22 is fixedly mounted on the upper surface of the support plate 21, and a fixing hole 221 is opened at its center. The fixing hole 221, the through-hole 211, and the locking member 7 are all coaxially aligned. The inner diameter of the fixing hole 221 can form a good fit with the outer diameter of the main body 81, thereby achieving precise positioning and support of the pump head 8 in the vertical direction.

[0025] To further enhance positioning reliability, the inner peripheral wall of the fixing hole 221 may be provided with anti-slip texture, locally raised limiting ribs, and rubber parts to increase friction and prevent the pump head 8 from slipping or circumferentially deflecting during the locking process. In addition, the fixing hole 221 may also be designed as a non-circular hole to match the external shape of the pump head 8, such as a polygonal hole or a hole with a keyway structure, to achieve circumferential positioning of the pump head 8.

[0026] In some specific embodiments of this utility model, the diameter of the clearance hole 211 is not less than the inner diameter of the fixing hole 221.

[0027] It should be explained that, to further enhance the versatility of the equipment, the positioning mechanism 2 can adopt a modular design. Specifically, the fixing seat 22 can be detachably installed on the support plate 21 via a quick-clamping structure or a threaded structure. During operation, a fixing seat 22 with a matching inner diameter can be selected and replaced according to the specific model and size of the pump head 8 currently being produced. It should be further noted that all specifications of fixing seats 22 meet a general design principle, namely, the inner diameter of its central fixing hole 221 is adapted to the outer diameter of the main body 81, and the diameter of the clearance hole 211 on the support plate 21 is always larger than the inner diameter of the fixing hole 221 of all specifications of fixing seats 22. This design allows a single piece of equipment to adapt to the processing of pump heads 8 of different diameter series by quickly changing the fixing seat 22, greatly expanding the application range of the equipment, reducing the investment cost of dedicated equipment for different specifications of pump heads 8, and ensuring that all pump head 8 products still have unobstructed passage space after switching between different workstations.

[0028] In some specific embodiments of this utility model, the fixing base 22 includes a mounting plate 222 and a positioning sleeve 223. The mounting plate 222 is disposed on the support plate 21, and the positioning sleeve 223 is disposed on the mounting plate 222 at one end opposite to the support plate 21. The positioning sleeve 223 extends in the vertical direction, and a fixing hole 221 is formed in the positioning sleeve 223. Figure 3 As shown, the mounting plate 222 is horizontally mounted on the top of the support plate 21 by screws, and the positioning sleeve 223 is vertically mounted on the top of the mounting plate 222 and extends upward, with its center forming the fixing hole 221. The inner diameter of the fixing hole 221 matches the outer diameter of the body 81 to be processed, thereby achieving precise centering and axial positioning of the product.

[0029] like Figure 1 and Figure 2 In the pump head 8 shown, the locking cover 82 extends axially upward from the inner wall of the main body 81, then its top end bends and extends downward along the outer wall of the main body 81, thus forming an annular axial gap between the lower extension of the locking cover 82 and the outer wall of the main body 81. The upper end of the positioning sleeve 223 is cleverly engaged in this annular gap and provides support. The structural design of the pump head 8 ensures that the inner wall of the positioning sleeve 223 contacts the outer wall of the main body 81, and the outer wall contacts the inner wall of the lower extension of the bent locking cover 82. Through this double-sided contact and constraint, the positioning sleeve 223 effectively constitutes a highly efficient radial limiting mechanism, which can effectively limit the degree of freedom of the pump head 8 in the horizontal direction, prevent it from tilting or shaking during the locking process, and ensure that the axis of the main column 83 is always coaxial with the axis of the locking member 7, thereby providing verticality and centering guarantee for high-precision tightening operation.

[0030] In some specific embodiments of this utility model, the anti-rotation mechanism 3 includes a first driving member 31 and an anti-rotation block 32. The first driving member 31 is disposed on the frame 1, and the anti-rotation block 32 is disposed at the output end of the first driving member 31. The anti-rotation block 32 is provided with a second anti-rotation tooth 321. The first driving member 31 is configured to drive the anti-rotation block 32 to rise and fall, so that the second anti-rotation tooth 321 engages with the second anti-rotation rib 811 of the main body 81.

[0031] like Figure 3 , Figure 4 and Figure 6 As shown, the first driving component 31 is fixedly mounted on the frame 1, and its output end is connected to the anti-rotation block 32, which can drive the anti-rotation block 32 to make vertical lifting and lowering movements. The top or working surface of the anti-rotation block 32 is machined with a second anti-rotation tooth 321. In this specific embodiment, the first driving component 31 is a cylinder, which is fixed on the frame 1. The anti-rotation block 32 is mounted on the output end of the cylinder piston rod through a connecting plate and is driven by the cylinder to make precise vertical lifting and lowering movements. It should be noted that the second anti-rotation ribs 811 are evenly distributed circumferentially on the outer wall of the pump head 8. Correspondingly, the anti-rotation block 32 is provided with an anti-rotation groove, and the inner wall of the anti-rotation groove facing the end face of the pump head 8 is machined with a second anti-rotation tooth 321. During operation, the first driving component 31 pushes the anti-rotation block 32 upward, causing the second anti-rotation tooth 321 on the anti-rotation block 32 to mesh with the second anti-rotation rib 811 at the bottom of the main body 81, thereby effectively restricting the rotational freedom of the main body 81 in the circumferential direction and providing the necessary counter-torque support for the subsequent tightening operation of the main column 83.

[0032] Furthermore, the anti-rotation block 32 can be installed on the output end of the cylinder piston rod via a quick-change interface, for example, by bolt fastening, dovetail groove sliding fit, or magnetic fixation, and is driven by the cylinder to perform precise vertical lifting and lowering movements. Considering that the position of the second anti-rotation rib 811 used to transmit counter-torque may vary for different models of pump head 8 products, some products have the second anti-rotation rib 811 directly protruding from the outer wall of the product body 81, while others have the second anti-rotation rib 811 formed in a groove at the bottom of the body 81. To accommodate this variation, the anti-rotation block 32 is designed as a replaceable module, with different modules machined with second anti-rotation teeth 321 that match the shape of the anti-rotation rib of each target product. Therefore, when different products need to be processed, the operator can quickly change the corresponding anti-rotation head. Specifically, if the second anti-rotation rib 811 is located on the outer wall, a concave anti-rotation head is selected for enveloping engagement; if the second anti-rotation rib 811 is located on the inner wall of the groove, a convex anti-rotation head is selected for insertion engagement, so as to ensure that the second anti-rotation tooth 321 can always form an effective and reliable engagement with the second anti-rotation rib 811 at different positions, thereby efficiently restricting the circumferential rotation of the product body 81 and providing a stable anti-torque support for the tightening operation.

[0033] It should be noted that the first driving component 31 can also be a servo motor or a stepper motor.

[0034] In some specific embodiments of this utility model, the lifting mechanism 4 includes a second driving member 41 and a mounting frame 42. The second driving member 41 is disposed on the frame 1, and the mounting frame 42 is connected to the output end of the second driving member 41. The rotating mechanism 5 and the pressurizing mechanism 6 are both mounted on the mounting frame 42. Figure 3 As shown, the second drive unit 41 is fixedly mounted on the frame 1, and its output end is connected to the mounting frame 42, which can drive the mounting frame 42 to perform precise and stable reciprocating motion in the vertical direction. The rotating mechanism 5 and the pressurizing mechanism 6 are both integrated and mounted on this mounting frame 42, forming an integral motion module. Thus, when the second drive unit 41 is activated, it can synchronously drive the rotating mechanism 5, the pressurizing mechanism 6, and the locking component 7 it drives to rise and fall together, realizing a complete action process of approaching the product, performing the locking operation, and then returning to the original position.

[0035] It should be noted that the second drive unit 41 can be a servo motor, a stepper motor, or a cylinder.

[0036] In some specific embodiments of this utility model, the rotating mechanism 5 includes a third driving member 51, a driving wheel 52 and a driven wheel 53. The third driving member 51 is mounted on the mounting bracket 42, the driving wheel 52 is located at the output end of the third driving member 51, and the driven wheel 53 is coaxially fixedly connected to the locking member 7 and engages with the driving wheel 52.

[0037] like Figure 3 As shown, the third driving component 51 is fixedly mounted on the mounting bracket 42 of the lifting mechanism 4, with its output end facing downwards. The driving wheel 52 is fixed to the output shaft of the third driving component 51, while the driven wheel 53 is coaxially fixedly mounted on the locking component 7 and meshes with the driving wheel 52. During operation, the third driving component 51 drives the driving wheel 52 to rotate, thereby transmitting torque to the driven wheel 53 through gear meshing, ultimately causing the locking component 7 to rotate around its own axis. Preferably, the third driving component 51 is a servo motor. Using a servo motor in conjunction with gear transmission can achieve precise control of the rotation angle and torque of the locking component 7, thus meeting the high-precision requirements of the main column 83's screw-in depth and locking force, and ensuring the consistency of product output.

[0038] In some specific embodiments of this utility model, the pressurizing mechanism 6 includes a fourth driving member 61, a thrust seat 62, and a plane bearing 63. The fourth driving member 61 is mounted on the mounting bracket 42, the thrust seat 62 is disposed at the output end of the fourth driving member 61, and the plane bearing 63 is connected between the thrust seat 62 and the locking member 7. The plane bearing 63 is configured to enable the locking member 7 to rotate circumferentially relative to the thrust seat 62.

[0039] like Figure 4As shown, the fourth drive component 61 is fixedly mounted on the mounting bracket 42 of the lifting mechanism 4, with its output end facing downwards. The thrust seat 62 is located at the output end of the fourth drive component 61 and can move vertically with the output end of the fourth drive component 61. A plane bearing 63 is installed between the thrust seat 62 and the locking component 7. Its outer ring is fixedly connected to the thrust seat 62, while its inner ring remains connected to the locking component 7. The plane bearing 63 is specifically configured to decouple the motion between the thrust seat 62 and the locking component 7, so as to efficiently transmit the axial pressure generated by the fourth drive component 61 to the locking component 7, thereby ensuring a continuous and stable downward pressure during the product locking process, while allowing the locking component 7 to rotate freely in the circumferential direction under the drive of the rotating mechanism 5, while the thrust seat 62 and the fourth drive component 61 themselves will not rotate.

[0040] In some specific embodiments of this utility model, the lifting mechanism 4 further includes an upper bearing seat 43 and a lower bearing seat 44 mounted on the mounting bracket 42. The upper bearing seat 43 is located above the lower bearing seat 44. The upper end of the locking member 7 is rotatably connected to the upper bearing seat 43, and the lower end of the locking member 7 is rotatably connected to the lower bearing seat 44. Figure 4 As shown, the upper bearing seat 43 and the lower bearing seat 44 are horizontally arranged and fixedly mounted side by side on the mounting bracket 42 in the vertical direction. The upper end of the locking member 7 is rotatably supported in the upper bearing seat 43 by a steel sleeve, and its lower end is rotatably supported in the lower bearing seat 44 by a steel sleeve. Through the layout of the upper and lower two-point support, the locking member 7 is precisely constrained on the vertical axis of rotation, which greatly enhances the rigidity and stability of the locking member 7 during rotation and pressure, effectively preventing radial runout or swaying that may occur due to excessive cantilever or uneven force, and ensuring the alignment of the locking member 7 with the anti-rotation groove of the product main column 83. This provides a crucial reference axis for high-precision tightening operation, ensuring the repeatability accuracy of the locking process and product quality.

[0041] In some specific embodiments of this utility model, the lifting mechanism 4 further includes a slide rail 45 and a slider 46. The slide rail 45 is arranged on the frame 1 in the vertical direction, and the slider 46 is arranged on the mounting frame 42. The slider 46 is slidably connected to the slide rail 45. The slide rail 45 and the slider 46 cooperate to guide the mounting frame 42 to move smoothly in the vertical direction. Thus, through the cooperation of the slider 46 and the slide rail 45, precise vertical guidance is provided for the lifting and lowering movement of the mounting frame 42 and the entire motion module, including the rotating mechanism 5 and the pressurizing mechanism 6 it carries. This effectively overcomes the motion deviation that may be caused by the clearance of the driving component itself or changes in external load, ensuring that the lifting process is smooth and reliable without shaking or tilting.

[0042] The automatic locking device for this emulsion pump head is further illustrated below through specific embodiments.

[0043] like Figures 3 to 6As shown, the frame 1 serves as an integral support structure. A support plate 21 is horizontally mounted on the frame 1. An clearance hole 211 is provided in the center of the support plate 21, and a mounting base 22 for supporting the pump head 8 is installed above it. A first drive component 31, fixed to the frame 1, is a cylinder. An anti-rotation block 32 is installed at the output end of the cylinder piston rod. The anti-rotation block 32 has a circular groove along its vertical direction, and multiple second anti-rotation teeth 321, which can engage with the second anti-rotation rib 811, are evenly arranged circumferentially on the inner wall of the groove. A second drive component 41, also driven by a cylinder, is mounted on the frame 1. Its output end is connected to a mounting bracket 42, on which an upper bearing seat 43 and a lower bearing seat 44 are arranged side-by-side along the vertical direction. A third drive component 51, mounted on the upper bearing seat 43, is a servo motor. Its output shaft is equipped with a drive gear, and the driven gear is fixed to and meshes with the locking component 7. The fourth driving component 61 is mounted on the upper bearing seat 43. The fourth driving component 61 is driven by a cylinder, and its piston rod is connected to the thrust seat 62. The thrust seat 62 is connected to the upper end of the locking component 7 through the plane bearing 63, so that the axial pressure generated by the cylinder can be continuously applied to the locking component 7, while the rotational movement of the locking component 7 is decoupled through the plane bearing 63 to avoid the cylinder being subjected to torsional stress. As a direct actuator, the locking component 7 is supported at its upper and lower ends by steel sleeves between the upper bearing seat 43 and the lower bearing seat 44, respectively, forming a stable two-point support rotational structure. The lower outer wall of the locking component 7 is provided with multiple first anti-rotation teeth 71 along the circumferential direction for meshing with the first anti-rotation rib 832 at the top of the main column 83.

[0044] Working process: The pump head 8 is inserted into the fixing hole 221 and positioned by the positioning sleeve 223. The first driving member 31 drives the anti-rotation block 32 to rise, so that the second anti-rotation tooth 321 engages with the second anti-rotation rib 811 at the bottom of the main body 81 to achieve circumferential locking. The second driving member 41 drives the mounting bracket 42 to descend along the slide rail 45, so that the first anti-rotation tooth 71 of the locking member 7 engages with the first anti-rotation rib 832 set on the top of the main column 83. At the same time, the fourth driving member 61 applies a constant axial pressure to the locking member 7, and the third driving member 51 drives the locking member 7 to rotate through the gear pair, so as to drive the main column 83 to rotate, so that the external thread 831 on the outer wall of the main column 83 engages with the internal thread 821 on the inner wall of the lock cover 82. The screw-in depth is precisely controlled by the torque or rotation angle of the fourth driving member 61. After the preset torque is reached, each driving member resets in sequence to complete one working cycle.

[0045] 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.

[0046] 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. An automatic locking device for an emulsion pump head, characterized in that, include: Rack (1); A positioning mechanism (2) is provided on the frame (1), and the positioning mechanism (2) is configured to support and position the pump head (8) in the vertical direction. An anti-rotation mechanism (3) is provided on the frame (1) and located below the positioning mechanism (2). The anti-rotation mechanism (3) is configured to cooperate with the main body (81) to prevent the main body (81) from rotating circumferentially. A lifting mechanism (4) is mounted on the frame (1); A rotating mechanism (5) is installed at the output end of the lifting mechanism (4) and located above the positioning mechanism (2); The pressurizing mechanism (6) is installed at the output end of the lifting mechanism (4) and located above the positioning mechanism (2); A locking member (7) is rotatably disposed at the output end of the pressurizing mechanism (6). The locking member (7) is connected to the output end of the rotating mechanism (5). A first anti-rotation tooth (71) is provided on the wall surface of the locking member (7). The locking member (7) is configured to engage with the first anti-rotation rib (832) of the main column (83) through the first anti-rotation tooth (71). The pressurizing mechanism (6) is configured to provide continuous axial locking pressure to the locking member (7).

2. The automatic locking device for the emulsion pump head according to claim 1, characterized in that, The positioning mechanism (2) includes: A support plate (21) is horizontally mounted on the frame (1), and the support plate (21) has clearance holes (211) in the vertical direction. A fixing seat (22) is provided on the support plate (21). A fixing hole (221) is provided on the fixing seat (22) at the position corresponding to the clearance hole (211). The fixing hole (221) is coaxially arranged with the locking member (7). The inner diameter of the fixing hole (221) is adapted to the outer diameter of the main body (81).

3. The automatic locking device for the emulsion pump head according to claim 2, characterized in that, The diameter of the clearance hole (211) is not less than the inner diameter of the fixing hole (221).

4. The automatic locking device for the emulsion pump head according to claim 3, characterized in that, The fixing base (22) includes: Mounting plate (222) is disposed on the support plate (21); A positioning sleeve (223) is disposed on the mounting plate (222) at one end opposite to the support plate (21). The positioning sleeve (223) extends in the vertical direction, and the fixing hole (221) is formed in the positioning sleeve (223).

5. The automatic locking device for the emulsion pump head according to claim 3, characterized in that, The anti-rotation mechanism (3) includes: The first drive unit (31) is disposed on the frame (1); An anti-rotation block (32) is provided at the output end of the first driving member (31). The anti-rotation block (32) is provided with a second anti-rotation tooth (321). The first driving member (31) is configured to drive the anti-rotation block (32) to rise and fall, so that the second anti-rotation tooth (321) engages with the second anti-rotation rib (811) of the main body (81).

6. The automatic locking device for the emulsion pump head according to claim 5, characterized in that, The lifting mechanism (4) includes: The second drive unit (41) is mounted on the frame (1); Mounting bracket (42) is connected to the output end of the second drive member (41), and the rotating mechanism (5) and the pressurizing mechanism (6) are both mounted on the mounting bracket (42).

7. The automatic locking device for the emulsion pump head according to claim 6, characterized in that, The rotating mechanism (5) includes: The third drive unit (51) is mounted on the mounting bracket (42); The drive wheel (52) is located at the output end of the third drive unit (51); The driven wheel (53) is coaxially fixedly connected to the locking member (7), and the driven wheel (53) meshes with the driving wheel (52).

8. The automatic locking device for the emulsion pump head according to claim 7, characterized in that, The pressurization mechanism (6) includes: The fourth drive unit (61) is mounted on the mounting bracket (42); A thrust seat (62) is disposed at the output end of the fourth drive member (61); A planar bearing (63) is connected between the thrust seat (62) and the locking member (7), and the planar bearing (63) is configured to allow the locking member (7) to rotate circumferentially relative to the thrust seat (62).

9. The automatic locking device for the emulsion pump head according to claim 8, characterized in that, The lifting mechanism (4) further includes an upper bearing seat (43) and a lower bearing seat (44) mounted on the mounting frame (42). The upper bearing seat (43) is located above the lower bearing seat (44). The upper end of the locking member (7) is rotatably connected to the upper bearing seat (43), and the lower end of the locking member (7) is rotatably connected to the lower bearing seat (44).

10. The automatic locking device for the emulsion pump head according to claim 9, characterized in that, The lifting mechanism (4) also includes: The slide rail (45) is mounted on the frame (1) in the vertical direction; A slider (46) is disposed on the mounting bracket (42). The slider (46) is slidably connected to the slide rail (45). The slide rail (45) cooperates with the slider (46) to guide the mounting bracket (42) to move smoothly in the up and down direction.

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