Hose shoulder injection transfer mechanism

Abstract

The present application relates to the technical field of hose packaging production equipment, and discloses a hose shoulder injection conveying mechanism. The present application aims at the problem that the existing hose shoulder injection conveying equipment is mostly customized for specific specifications, and requires complex modification, long time, high cost and poor versatility when changing type. The hose pretreatment unit, directional arrangement unit, posture conversion unit and shoulder injection docking unit are sequentially connected, and can automatically complete the whole process of hose feeding, head and tail direction detection, directional arrangement, posture conversion, pipe insertion and finished product taking out. Each unit is provided with a modular and detachable specification adaptation assembly. By quickly replacing the bearing plate, mounting plate, positioning column and clamping strip, the hose production with different pipe diameters, lengths and mold array spacing can be adapted. The present application realizes the full automation of the hose shoulder injection process, reduces the labor intensity and safety hazards, greatly shortens the downtime when changing type, and significantly improves the production versatility and comprehensive production efficiency of the equipment.

Description

Technical Field

[0001] This invention relates to the field of hose packaging production equipment technology, and in particular to a hose filling and conveying mechanism. Background Technology

[0002] As a widely used packaging container in cosmetics, toothpaste, pharmaceuticals and other fields, the production process of tubes mainly includes three core processes: tube body extrusion molding, tube shoulder and tube head injection molding, and filling and sealing. Among them, the tube shoulder and tube head injection molding process requires the open-end cylindrical tube body to be used as an insert, which is precisely inserted into the mold mandrel of the injection molding machine. After the mold is closed, the tube shoulder and tube head are formed at the end of the tube body through the injection molding process.

[0003] Traditional tube insertion operations rely on manual labor. Operators must insert the tube into the mold mandrel one by one and remove the finished product after injection molding. This is not only labor-intensive and inefficient, but also poses serious safety hazards due to the close contact between operators and the high-temperature mold. To solve these problems, automated tube insertion equipment has emerged in the prior art. For example, Chinese patent CN215434858U discloses a sliding plate injection molding tube insertion and removal machine, which automates the tube feeding, direction detection, insertion, and removal operations through a single-rail transfer mechanism, a forward and reverse detection mechanism, and a flipping mechanism.

[0004] However, in actual production, hose products come in a wide variety of specifications, with significant differences in pipe diameter, length, and die array spacing on injection molding machines. Most existing automated equipment is custom-designed for specific hose specifications. When changing product specifications, complex mechanical modifications to the equipment's load-bearing structure, clamping structure, and positioning structure are required, sometimes even replacing the entire machine. This results in changeover times of several hours or even days, high modification costs, and a significant impact on production efficiency. Furthermore, the testing mechanisms in existing equipment are mostly fixed installations, which can easily lead to decreased testing accuracy, false positives, and missed detections after changing specifications, further reducing the reliability of equipment operation. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hose shoulder injection conveying mechanism to realize the fully automated operation of the hose shoulder injection process. At the same time, through modular and detachable specification adapter components, it can quickly adapt to the production needs of hoses of different specifications, significantly reduce changeover costs and downtime, and improve the versatility and production efficiency of the equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A flexible tube shoulder injection conveying mechanism includes a flexible tube pretreatment unit, a directional arrangement unit, a posture conversion unit, and a shoulder injection docking unit connected in sequence. The flexible tube pretreatment unit is used for automatic flexible tube feeding and end-to-end direction detection and identification; the directional arrangement unit is used to neatly arrange the detected flexible tubes according to a preset end-to-end direction; the posture conversion unit is used to convert the horizontally arranged flexible tubes to a vertical posture; and the shoulder injection docking unit is used to transfer the vertically positioned flexible tubes to the shoulder injection machine mold and remove the finished product after shoulder injection. The directional arrangement unit, posture conversion unit, and shoulder injection docking unit are all equipped with modular and detachable specification adapter components to adapt to the production needs of flexible tubes with different diameters, lengths, and mold array spacings.

[0007] Furthermore, the hose pretreatment unit includes a first transfer unit and a head / tail detection unit. The first transfer unit uses a suction cup-type robotic arm to transfer the hose to be processed, conveyed from the previous process or by an external feeding device, to the head / tail detection unit. The head / tail detection unit includes a first conveying assembly, a rotating assembly, and a detection assembly. The first conveying assembly adopts a chain-type circulating conveying structure, including multiple carrier blocks conveyed along a circulating path. The carrier blocks have V-shaped or arc-shaped grooves for stably supporting the hose. The rotating assembly includes two symmetrically arranged rotating pressure blocks. The rotating pressure blocks are driven by cylinders to achieve relative movement and by a motor to achieve self-rotation. A tapered locking part at its end can be inserted into the hose end opening to achieve self-centering clamping of the hose. The detection assembly uses a vision sensor or a photoelectric sensor to identify the cursor printed on the hose surface, thereby determining the head / tail direction of the hose.

[0008] Furthermore, the orientation arrangement unit includes a second transfer unit, a moving base, and a support plate. The second transfer unit employs a suction cup-type robotic arm with a rotation function, which can rotate hoses with incorrect orientations by 180 degrees during the transfer process, ensuring that all hoses are arranged in the preset head-to-tail direction. The moving base is driven by a linear module to move along a first direction. The support plate is detachably mounted on the moving base by bolts. The groove spacing on the support plate is consistent with the positioning post spacing of the flipping unit, and the groove shape matches the hose body contour to prevent the hose from rolling off course. When replacing hoses of different specifications, only the support plate with the corresponding groove size and spacing needs to be replaced.

[0009] Furthermore, the attitude conversion unit includes a pushing unit and a flipping unit. The pushing unit adopts a cylinder-driven push plate structure, which can push all the hoses on the support plate towards the flipping unit in one go. The lifting bracket of the flipping unit is driven by a linear module to achieve lifting, and the rotating bracket is driven by a servo motor to achieve 90-degree rotation, thereby completing the conversion of the positioning column from a horizontal to a vertical attitude. The mounting plate is detachably mounted to the rotating bracket by bolts, and the positioning column is detachably mounted to the mounting plate by threaded connection. The design of two rows of positioning columns can double the number of hoses clamped in a single operation, significantly improving production efficiency. When changing hoses of different specifications, only the mounting plate and positioning columns of the corresponding size and spacing need to be replaced.

[0010] Furthermore, the injection docking unit includes an insertion unit, a three-axis moving unit, and a tube removal unit. The three-axis moving unit adopts a gantry structure, comprising three linear motion modules (X, Y, Z) and an R-axis rotating around the Z-axis, enabling precise movement of the insertion and removal units between various workstations. The first clamping bar of the insertion unit slides with the first clamping plate via a sliding guide groove and is fixed by a back bolt, eliminating the need to disassemble the first clamping plate during replacement, making operation simple and quick. The limiting plate is connected to the pneumatic gripper housing via a connecting plate with a first strip-shaped guide hole, allowing for vertical height adjustment to accommodate hoses of different lengths. A tension spring between the two first clamping plates maintains the clamping state in case of pneumatic system failure, preventing the hose from falling and causing equipment malfunction and product damage.

[0011] Furthermore, the second clamping bar of the tube-pulling unit adopts an integral rubber strip structure, eliminating the need for replacement for different specifications of hoses; it only requires ensuring its length is sufficient to clamp an entire row of hoses. The first sensor of the first detection mechanism can be adjusted laterally along the second strip-shaped guide hole to adapt to the in-situ detection of hoses with different mold array spacings.

[0012] Furthermore, the second detection mechanism of the flipping unit realizes the lateral and longitudinal position adjustment and angle adjustment of the second sensor through the adapter bracket, which can accurately adapt to the detection requirements of positioning posts and hoses of different specifications, ensuring that the hoses on each positioning post can be accurately detected, avoiding empty insertion or missed insertion.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects: The invention achieves fully automated flow of the hose injection process through a series of interconnected hose pretreatment units, orientation units, posture conversion units, and shoulder injection docking units. The entire process, from hose feeding, end-to-end direction detection, orientation arrangement, posture conversion, insertion, and finished product removal, can be completed without manual intervention. This effectively reduces labor intensity, improves production efficiency, and eliminates the safety hazards of operators coming into contact with high-temperature molds. Furthermore, by incorporating modular and detachable specification adapter components in the orientation units, posture conversion units, and shoulder injection docking units, the machine can quickly adapt to the production needs of hoses with different diameters, lengths, and mold array spacings without complex modifications to the entire machine. This significantly shortens changeover downtime, reduces modification costs, and substantially improves the equipment's production versatility and overall production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the hose injection shoulder delivery mechanism of the present invention; Figure 2 This is a schematic diagram of the internal structure of the invention after the casing is hidden; Figure 3 This is a schematic diagram showing the positional relationship between the hose pretreatment unit, the orientation arrangement unit, the pushing unit, and the attitude conversion unit of the present invention; Figure 4 This is a schematic diagram of the structure of the hose pretreatment unit, the first transfer unit, and the second transfer unit of the present invention; Figure 5 This is a schematic diagram of the head and tail detection unit of the present invention; Figure 6 This is a schematic diagram showing the cooperation between the directional arrangement unit, the pushing unit, and the flipping unit of the present invention; Figure 7 This is an exploded view of the flipping unit of the present invention; Figure 8 yes Figure 7 Enlarged diagram of part A in the middle; Figure 9 This is an exploded view of the rotating bracket, mounting plate, and positioning column of the present invention; Figure 10 This is a schematic diagram of the insertion unit and removal unit of the present invention mounted on the bottom of the substrate; Figure 11 This is a schematic diagram of the cannulation unit of the present invention.

[0015] In the picture: 1- Hose pretreatment unit, 11- First conveying assembly, 111- Carrying block, 1111- Tray, 12- Rotating assembly, 121- Rotating pressure block, 13- Detection assembly, 2- First material transfer unit, 3- Second material transfer unit, 4- Pushing unit, 5- Orienting arrangement unit, 51- Bearing plate, 511- Groove, 6- Attitude conversion unit, 61- Lifting bracket, 62- Rotating bracket, 621- Fourth connecting hole, 63- Mounting plate, 631- Third connecting hole, 64- Positioning column, 65- Second detection mechanism, 651- Second detection bracket, 6511- Third strip guide hole, 652- Second sensor, 653- Adapter bracket, 653 1-First support plate, 6531a-Fourth strip-shaped guide hole, 6532-Second support plate, 6532a-Hinge hole, 6532b-Arc-shaped guide hole, 7-Shoulder docking unit, 71-First clamping plate, 711-Sliding guide groove, 712-First connecting hole, 72-First clamping bar, 721-Slot, 73-Limiting plate, 74-Pneumatic gripper, 75-Connecting plate, 751-First strip-shaped guide hole, 76-Tension spring, 8-Pipe pulling unit, 81-Second clamping plate, 82-Second clamping bar, 83-First detection mechanism, 831-First detection bracket, 8311-Second strip-shaped guide hole, 832-First sensor, 9-Three-axis moving unit, 91-Base plate. Detailed Implementation

[0016] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the invention.

[0017] In the description of this invention, it should be understood that the terms up, down, front, back, vertical, horizontal, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0018] In this invention, unless otherwise explicitly specified and limited, the terms installation, connection, linking, fixing, etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0019] In this invention, unless otherwise explicitly specified and limited, the first feature above or below the second feature may be in direct contact with the first feature, or in indirect contact via an intermediate medium. Furthermore, "above," "over," and "on top" of the first feature may mean the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "beneath," and "below" of the first feature may mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0021] like Figures 1 to 11 As shown, this embodiment provides a hose shoulder delivery mechanism, including a hose pretreatment unit 1, a directional arrangement unit 5, a posture conversion unit 6, and a shoulder docking unit 7 connected in sequence.

[0022] The hose pretreatment unit 1 includes a first transfer unit 2 and a head and tail detection unit. The first transfer unit 2 adopts a suction cup type robot arm, and its end is equipped with multiple vacuum suction cups for adsorbing the hose to be processed and transferring it to the first conveying component 11 of the head and tail detection unit.

[0023] The head and tail detection unit includes a first conveying component 11, a rotating component 12, and a detection component 13. The first conveying component 11 adopts a chain-type circulating conveying structure, driven by a servo motor to move the chain in a circular motion. Multiple equally spaced tube-carrying blocks 111 are fixedly installed on the chain. The top of the tube-carrying block 111 is provided with an arc-shaped support groove 1111. The radius of the support groove 1111 is slightly larger than the radius of the hose, which can stably support the hose and prevent it from rolling during the conveying process.

[0024] The rotating assembly 12 is located in the middle of the conveying path of the first conveying assembly 11 and includes two symmetrically arranged rotating pressure blocks 121. Each of the two rotating pressure blocks 121 is driven by an independent cylinder and can move relative to each other in the horizontal direction, while simultaneously being driven by a servo motor to rotate around its own axis. The ends of the rotating pressure blocks 121 are provided with conical engaging portions, the tips of which face the end of the hose, with a conical angle of 30-60 degrees. The rotation center of the conical engaging portion is located vertically within the hollow area of ​​the hose and is approximately 2mm-5mm above the central axis of the hose. When the two rotating pressure blocks 121 move inward to clamp the hose, the conical engaging portion inserts into the end opening of the hose, automatically aligning the axis of the hose with the rotation axis of the rotating pressure block 121 using the self-centering effect of the conical surface. Simultaneously, the inclination angle of the conical surface decomposes the horizontal thrust into an upward component, lifting the hose from the tray 1111, thus suspending the hose during rotation and preventing damage caused by friction between the hose surface and the tray 1111.

[0025] The detection component 13 employs a vision sensor, which is mounted above the rotating component 12, and its detection area covers the rotating hose. One end of the hose has a black cursor pre-printed on it. When the rotating component 12 drives the hose to rotate around its own axis, the vision sensor recognizes the cursor, determines the direction of the hose's head and tail, and sends the direction signal to the control system.

[0026] The orientation arrangement unit 5 includes a second transfer unit 3, a moving seat, and a support plate 51. The second transfer unit 3 uses a suction cup-type manipulator with a rotary cylinder, which can move along the X, Y, and Z directions and rotate 180 degrees around the Z-axis. When the detection component 13 determines that the hose direction is consistent with the preset direction, the second transfer unit 3 directly transfers the hose from the carrier block 111 to the groove 511 of the support plate 51; when the direction is determined to be opposite, the second transfer unit 3 rotates the hose 180 degrees during the transfer process before placing it into the groove 511, ensuring that all hoses are arranged in the preset head-to-tail direction.

[0027] The movable base is driven by a linear module to move along a first direction (i.e., the X-axis direction in the figure). The support plate 51 is detachably mounted on the top of the movable base by bolts. Multiple grooves 511, evenly spaced along the first direction, are formed on the support plate 51. The grooves 511 are arc-shaped, with a radius matching the radius of the hose body. The spacing between the grooves 511 matches the spacing of the row of positioning posts 64 in the flipping unit 6. When all the grooves 511 on the support plate 51 are filled with hose, the movable base moves the support plate 51 to the position of the corresponding flipping unit 6.

[0028] The attitude conversion unit 6 includes a pushing unit 4 and a flipping unit 6. The pushing unit 4 adopts a cylinder-driven push plate structure. The length of the push plate is the same as the length of the support plate 51. A rubber push head is provided on the push plate at the position corresponding to each groove 511 to prevent damage to the hose during the pushing process.

[0029] The flipping unit 6 includes a lifting bracket 61, a rotating bracket 62, a mounting plate 63, a positioning column 64, and a second detection mechanism 65. The lifting bracket 61 is driven by a linear module to move vertically (i.e., along the Z-axis in the figure). The rotating bracket 62 is rotatably mounted on top of the lifting bracket 61 via a pivot and is driven by a servo motor to rotate 90 degrees. The mounting plate 63 has multiple third connecting holes 631 distributed along a first direction, and the rotating bracket 62 has multiple fourth connecting holes 621 distributed along a second direction (i.e., along the Y-axis in the figure). The number of fourth connecting holes 621 is greater than that of third connecting holes 631. By bolting the third connecting holes 631 to the fourth connecting holes 621 at different positions, the front and rear positions of the mounting plate 63 on the rotating bracket 62 can be adjusted to accommodate hoses of different lengths.

[0030] The positioning pins 64 are detachably installed on the front side of the mounting plate 63 via threaded connection. Multiple positioning pins 64 are arranged in two rows, upper and lower, with each row equally spaced along a first direction. The number of positioning pins 64 in each row corresponds to the number of grooves 511 on the support plate 51. The rotating bracket 62 has a first posture and a second posture. In the first posture, the rotating bracket 62 is horizontal, and the positioning pins 64 are horizontally positioned and correspond one-to-one with the grooves 511 of the support plate 51. In the second posture, the rotating bracket 62 rotates 90 degrees to a vertical position, and the positioning pins 64 are vertically positioned and correspond one-to-one with the mandrels of the injection molding machine mold.

[0031] The second detection mechanism 65 is fixed on the rotating bracket 62 and located outside the positioning column 64. It includes a second detection bracket 651, multiple adapter brackets 653, and multiple second sensors 652. The second detection bracket 651 is a long strip plate extending along a first direction, and has a third strip-shaped guide hole 6511 extending along the first direction. The adapter bracket 653 is L-shaped and includes a first support plate 6531 and a second support plate 6532 that are perpendicular to each other. The first support plate 6531 has a fourth strip-shaped guide hole 6531a extending along a second direction. The fourth strip-shaped guide hole 6531a is connected to the third strip-shaped guide hole 6511 by bolts, which can realize the position adjustment of the adapter bracket 653 in the first and second directions. The second support plate 6532 has a hinge hole 6532a and an arc-shaped guide hole 6532b centered on the hinge hole 6532a. The tail of the second sensor 652 is hinged to the hinge hole 6532a, and its side is connected to the arc-shaped guide hole 6532b by bolts. Loosening the bolts allows adjustment of the detection angle of the second sensor 652. The second sensor 652 is a reflective photoelectric sensor, and its number corresponds one-to-one with the number of each row of positioning posts 64. It is used to detect whether a flexible tube is fitted on each positioning post 64.

[0032] The shoulder insertion unit 7 includes a three-axis moving unit 9, a tube insertion unit 7, and a tube removal unit 8. The three-axis moving unit 9 adopts a gantry structure, including an X-axis linear module, a Y-axis linear module, a Z-axis linear module, and an R-axis rotary motor. The output end of the R-axis rotary motor is fixedly mounted with a base plate 91, which can move along the X, Y, and Z directions and rotate around the Z-axis.

[0033] The insertion unit 7 and the extraction unit 8 are fixed side-by-side to the bottom of the base plate 91. The insertion unit 7 includes a pneumatic gripper 74, two first clamping plates 71, a first clamping bar 72, a limiting plate 73, and a tension spring 76. The housing of the pneumatic gripper 74 is fixed to the bottom of the base plate 91, and its two grippers are respectively fixedly connected to the two first clamping plates 71 to drive the two first clamping plates 71 to move relative to each other. The inner side of the first clamping plate 71 is recessed with a sliding guide groove 711 extending laterally. The first clamping bar 72 slides in cooperation with the sliding guide groove 711. The back of the first clamping plate 71 has a plurality of first connecting holes 712 corresponding to the positions of the sliding guide groove 711. The back of the first clamping bar 72 has a corresponding second connecting hole. The first connecting holes 712 are connected to the second connecting holes by bolts to fix the first clamping bar 72. The inner side of the first clamping bar 72 is provided with a plurality of slots 721 evenly distributed along the first direction. The slots 721 are arc-shaped and their radius matches the radius of the hose body. The spacing of the slots 721 is consistent with the spacing of the mandrel of the injection molding machine.

[0034] A connecting plate 75 is fixed to each side of the housing of the pneumatic gripper 74. The connecting plate 75 has a first vertically extending guide hole 751. Bolts pass through the first guide hole 751 to fix the connecting plate 75 to the housing of the pneumatic gripper 74. Loosening the bolts allows adjustment of the vertical height of the connecting plate 75. The bottom ends of the two connecting plates 75 are connected to a limiting plate 73. The limiting plate 73 is located between the two first clamping plates 71 and above the first clamping strip 72. Its lower surface is flat, used for the upper end of the hose to abut against, achieving axial positioning of the hose and ensuring that all hoses are inserted into the mold to a consistent depth. Two tension springs 76 are provided between the two first clamping plates 71. The two ends of the tension springs 76 are respectively connected to the inner side of the two first clamping plates 71, and are used to apply a spring force to the two first clamping plates 71 to bring them closer together. When the pneumatic gripper 74 suddenly stops air or the air pressure is insufficient, the spring force of the tension springs 76 can maintain the clamping state of the first clamping bar 72 on the hose and prevent the hose from falling off.

[0035] The structure of the tube extraction unit 8 is similar to that of the tube insertion unit 7, including a pneumatic gripper, two second clamping plates 81, and a second clamping strip 82. The second clamping strip 82 is an integral rubber strip with a flat inner side, eliminating the need for slots and allowing for clamping of various hose sizes. A first detection mechanism 83 is fixed to the outer side of the second clamping plates 81. The first detection mechanism 83 includes a first detection bracket 831 and multiple first sensors 832. The first detection bracket 831 extends laterally and has a second strip-shaped guide hole 8311 extending laterally. The first sensors 832 are detachably connected to the second strip-shaped guide hole 8311 by bolts and can be adjusted laterally along the second strip-shaped guide hole 8311 to detect whether the tube extraction unit 8 has successfully clamped the finished hose.

[0036] The working process of this embodiment is as follows: Feeding and Direction Detection: The first transfer unit 2 transfers the hose to be processed onto the carrier block 111 of the first conveying assembly 11. The first conveying assembly 11 then conveys the hose to the position of the rotating assembly 12. The rotating pressure block 121 moves inward to clamp the hose and lift it up, while simultaneously driving the hose to rotate around its own axis. The detection assembly 13 identifies the cursor on the surface of the hose and determines the direction of the hose's head and tail.

[0037] Oriented arrangement: The second material transfer unit 3 transfers the hose that has completed the orientation detection to the groove 511 of the support plate 51 in the preset head and tail direction. When the support plate 51 is full, the moving seat drives the support plate 51 to move in front of the flipping unit 6.

[0038] Sleeve Installation and Attitude Transition: The flipping unit 6 initially operates in the first attitude. The lifting bracket 61 adjusts its position by raising and lowering it, aligning the first row of positioning posts 64 with the grooves 511 of the support plate 51. The pushing unit 4 pushes the flexible tubes on the support plate 51, causing them to fit onto the first row of positioning posts 64. The second sensor 652 detects whether each positioning post 64 is fitted with a flexible tube. The lifting bracket 61 then raises and lowers again, aligning the second row of positioning posts 64 with the grooves 511, repeating the pushing process to complete the second row of sleeve installation. After sleeve installation, the rotating bracket 62 rotates 90 degrees to switch to the second attitude, and the positioning posts 64 are now vertically positioned.

[0039] Insertion operation: The three-axis moving unit 9 moves the insertion unit 7 above the flipping unit 6. The pneumatic gripper 74 drives the first clamping plate 71 to open. After the insertion unit 7 descends to the hose position, the first clamping plate 71 closes. The slot 721 of the first clamping bar 72 clamps the outer wall of the hose, and the limiting plate 73 abuts against the upper end of the hose. The insertion unit 7 lifts the hose from the positioning post 64, moves it above the mold mandrel of the injection molding machine, and descends to insert the hose into the mold mandrel.

[0040] Tube pulling operation: After the shoulder injection is completed, the three-axis moving unit 9 drives the tube pulling unit 8 to move above the shoulder injection machine mold. The second clamping plate 81 closes to clamp the finished tube and moves upward to pull the tube out of the mold mandrel. The first sensor 832 detects whether the tube is successfully clamped. Then, the three-axis moving unit 9 drives the tube pulling unit 8 to the unloading position, releases the second clamping plate 81, and puts the finished tube into the unloading device.

[0041] When you need to replace the hose with one of a different size, simply do the following: Replace the bearing plate 51: Unscrew the fixing bolts, remove the original bearing plate 51, and replace it with a new bearing plate 51 with the corresponding groove size and spacing.

[0042] Replace the mounting plate 63 and positioning post 64: Unscrew the connecting bolts between the mounting plate 63 and the rotating bracket 62, remove the original mounting plate 63 and positioning post 64, and replace them with new mounting plates 63 and positioning posts 64 of the corresponding size and spacing.

[0043] Replace the first clamping bar 72: Unscrew the fixing bolts on the back of the first clamping plate 71, pull out the original first clamping bar 72, push the new first clamping bar 72 into place along the sliding guide groove 711, and tighten the bolts to fix it.

[0044] Adjust the height of the limiting plate 73: Loosen the fixing bolts of the connecting plate 75, adjust the position of the connecting plate 75 up and down along the first strip guide hole 751 so that the lower surface of the limiting plate 73 abuts against the upper end of the new specification hose, and tighten the bolts to fix it.

[0045] Adjust the sensor position: Adjust the lateral and longitudinal positions and detection angles of the second sensor 652 and the first sensor 832 respectively to ensure that the sensors can accurately detect hoses of the corresponding specifications.

[0046] The entire conversion process requires no complex modifications to the machine, is simple and quick to operate, has short downtime, and greatly improves the equipment's versatility and production efficiency.

[0047] In summary, the beneficial effects of the present invention are as follows: Fully automated operation: This invention can automatically complete all processes such as hose feeding, head and tail direction detection, orientation arrangement, posture conversion, tube insertion and finished product removal without manual intervention, which greatly reduces labor intensity and improves production efficiency. At the same time, it avoids the operator from coming into contact with high-temperature molds, eliminating safety hazards.

[0048] Modular and rapid changeover: The present invention is equipped with modular and detachable specification adapter components in the orientation arrangement unit, posture conversion unit and shoulder docking unit. When changing to different specifications of hoses, only the bearing plate, mounting plate, positioning post and first clamping strip need to be replaced, and the height of the limit plate and the position of the sensor need to be adjusted. No complex modification of the whole machine is required. The changeover time can be shortened to less than 15 minutes, which significantly reduces changeover costs and downtime.

[0049] High operational reliability: This invention achieves non-destructive rotational detection of the hose through the self-centering design of the conical engagement part, prevents the hose from accidentally falling off through the failure protection design of the tension spring, and ensures detection accuracy through the multi-degree-of-freedom adjustable detection mechanism, effectively improving the stability and reliability of equipment operation.

[0050] High production efficiency: The invention adopts a flip unit design with two rows of positioning columns, which doubles the number of hoses that can be clamped at one time. At the same time, it integrates the insertion and removal units on the same three-axis moving unit, realizing the synchronous operation of insertion and removal, and improving the production efficiency by more than 50% compared with traditional equipment.

[0051] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0052] To highlight the key technical aspects of this application, the specification and accompanying drawings omit or omit structural, step, or operational features not directly related to solving the technical problems of this application when describing the embodiments. Such omissions do not affect the understanding of the technical solution of this application by those skilled in the art, nor do they constitute a limitation on the embodiments. Those skilled in the art can supplement or replace relevant content based on conventional technical knowledge without affecting the completeness and feasibility of the technical solution of this application.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hose injection shoulder delivery mechanism, characterized in that, The system includes a hose pretreatment unit, an orientation arrangement unit, a posture conversion unit, and a shoulder injection docking unit connected in sequence. The hose pretreatment unit is used to automatically feed the hoses and detect and identify their head and tail directions. The orientation arrangement unit is used to neatly arrange the detected hoses according to a preset head and tail direction. The posture conversion unit is used to convert the horizontally arranged hoses into a vertical posture. The shoulder injection docking unit is used to transfer the vertically postured hoses to the shoulder injection machine mold and remove the finished product after shoulder injection. The orientation arrangement unit, posture conversion unit, and shoulder injection docking unit are all equipped with modular and detachable specification adapter components to adapt to the production needs of hoses with different pipe diameters, lengths, and mold array spacings.

2. The hose infusion shoulder conveying mechanism according to claim 1, characterized in that, The hose pretreatment unit includes a first material transfer unit and a head and tail detection unit; the first material transfer unit is used to transfer the hose to be processed to the head and tail detection unit; the head and tail detection unit includes a first conveying component, a rotating component and a detection component; the first conveying component is used to convey the hose, the rotating component is used to drive the hose on the conveying path to rotate around its own axis, and the detection component is used to identify the head and tail direction of the hose during rotation.

3. The hose infusion shoulder conveying mechanism according to claim 1, characterized in that, The orientation arrangement unit includes a second material transfer unit, a movable seat that can move along a first direction, and a support plate that can be detachably installed on the movable seat; the support plate has multiple grooves that are spaced apart along the first direction, and the grooves are used to support the hoses; the second material transfer unit is used to transfer the hoses that have completed the direction detection in the hose pretreatment unit into the grooves of the support plate one by one according to the preset head and tail directions.

4. The hose infusion shoulder conveying mechanism according to claim 1, characterized in that, The attitude conversion unit includes a pushing unit and a flipping unit; the flipping unit includes a liftable lifting bracket, a rotating bracket rotatably mounted on the lifting bracket, a mounting plate detachably mounted on the rotating bracket, and multiple positioning columns detachably mounted on the mounting plate; the multiple positioning columns are arranged in two rows, with each row spaced apart along a first direction; the rotating bracket has a first attitude and a second attitude, in the first attitude the positioning columns are horizontally arranged and correspond one-to-one with the grooves of the bearing plate, in the second attitude the positioning columns are vertically arranged and correspond one-to-one with the mandrels of the injection molding machine; the pushing unit is used to horizontally push the flexible tube in the groove of the bearing plate towards the flipping unit, so that the flexible tube is sleeved on the positioning column in the horizontal attitude.

5. The hose infusion shoulder conveying mechanism according to claim 1, characterized in that, The shoulder insertion unit includes a tube insertion unit; the tube insertion unit includes a pneumatic gripper, two laterally symmetrical first clamping plates, a first clamping strip detachably installed inside the first clamping plates, and a height-adjustable limiting plate; the pneumatic gripper is used to drive the two first clamping plates to move relative to each other, and the inner side of the first clamping strip is provided with multiple slots for clamping the hose; the limiting plate is located between the two first clamping plates and above the first clamping strip, and is used for the upper end of the hose to abut against it to achieve axial positioning.

6. The hose infusion shoulder conveying mechanism according to claim 5, characterized in that, Several tension springs are provided between the two first clamping plates. The tension springs are used to apply a spring force to the two first clamping plates to bring them closer together, so as to maintain the clamping state of the hose when the pneumatic gripper is cut off or the air pressure is insufficient.

7. The hose shoulder conveying mechanism according to claim 5, characterized in that, The shoulder injection docking unit also includes a three-axis moving unit and a tube pulling unit; the three-axis moving unit includes a base plate that can move and rotate along three axes, and the tube insertion unit and the tube pulling unit are fixed side by side at the bottom of the base plate; the tube pulling unit is used to pull out the finished tube that has been injected with shoulder from the shoulder injection machine mold, and it includes two transversely symmetrical and relatively movable second clamping plates and a second clamping strip fixed to the inner side of the second clamping plates.

8. The hose shoulder delivery mechanism according to claim 7, characterized in that, The tube removal unit also includes a first detection mechanism; the first detection mechanism includes a first detection bracket fixed to the outside of the second clamping plate and a plurality of first sensors; the first detection bracket has a second strip-shaped guide hole extending laterally, and the first sensors are detachably connected to the second strip-shaped guide hole by bolts, and the lateral position can be adjusted along the second strip-shaped guide hole to adapt to different specifications of hoses.

9. The hose infusion shoulder conveying mechanism according to claim 4, characterized in that, The flipping unit further includes a second detection mechanism; the second detection mechanism includes a second detection bracket fixed on the rotating bracket, multiple adapter brackets, and multiple second sensors; the second detection bracket has a third strip-shaped guide hole extending along the first direction; the adapter bracket includes a first support plate and a second support plate perpendicular to each other; the first support plate is bolted to the third strip-shaped guide hole through a fourth strip-shaped guide hole, and its position can be adjusted in a direction perpendicular to the first direction; the second support plate has a hinge hole and an arc-shaped guide hole centered on the hinge hole; the second sensor is hinged to the hinge hole and fixed through the arc-shaped guide hole, and its detection angle can be adjusted around the hinge hole; the second sensor corresponds one-to-one with each row of positioning columns and is used to detect whether a flexible tube is sleeved on the positioning column.

10. The hose shoulder conveying mechanism according to claim 2, characterized in that, The first conveying assembly includes multiple tube-carrying blocks that are conveyed along a circulation path. Each tube-carrying block has a slot for placing a hose. The rotating assembly includes two symmetrically arranged rotating pressure blocks that can move relative to each other. The two rotating pressure blocks are located on both sides of the first conveying assembly and can rotate around their own axes. The ends of the rotating pressure blocks are provided with conical engaging portions. The rotation center of the conical engaging portions is located vertically within the hollow area of ​​the hose and is higher than the central axis of the hose.

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