Feeding mechanism of tubular part feeding equipment

Abstract

The utility model discloses a feeding mechanism of tubular part feeding equipment, which can automatically and orderly output tubular parts and comprises a stock bin and a feeding belt conveyor. The stock bin is divided into a feeding chamber and a discharging chamber; a discharging belt conveyor is installed in the feeding chamber, a plurality of push plates extending in the width direction of a belt of the discharging belt conveyor are arranged on the surface of the belt of the discharging belt conveyor, and the push plates convey the tubular parts in the feeding chamber to the discharging chamber along with operation of the discharging belt conveyor. A discharging window communicated with the discharging chamber is arranged on the side face of the stock bin, a jacking block which can ascend and descend is installed in the discharging chamber, the upper surface of the jacking block is an inclined face, the lower edge of the inclined face is close to the discharging window, and the jacking block ascends and descends to drive the tubular parts in the discharging chamber to ascend and descend. When the lower edge of the inclined surface of the top block is higher than the bottom surface of the discharging window, the tubular part rolls off under the action of the inclined surface and falls off from the discharging window; the feeding belt conveyor is arranged on the side face of the stock bin, and the conveying direction of the feeding belt conveyor is parallel to the inclined face of the ejector block. Flanges are installed on the two sides of the feeding belt conveyor.

Description

Technical Field

[0001] The utility model belongs to the technical field of tubular container processing, in particular to a feeding mechanism of tubular piece feeding equipment. Background Art

[0002] Tubular containers, especially packaging hoses, have become one of the main packaging varieties in technical fields such as cosmetics, food and medicine due to their convenience, economy and good hygiene. Cosmetics are the largest customer group for packaging hoses, accounting for 60% to 70% of all packaging hose business. In the pharmaceutical industry, packaging hoses are mainly used for the packaging of creams and ointments for external use, accounting for 15% to 20%.

[0003] Whether rigid or flexible, the traditional manufacturing process for tubular containers involves welding a functional head to the tube's head, then filling the tube with the contents, and finally sealing the tail, resulting in a complete, filled product. The functional head primarily refers to the component used to extrude the contents, also known in the industry as a discharge assembly or device. Examples include conventional extruder heads with external threads (compatible with screw-on caps), massage heads with massage balls, and brush heads with bristles.

[0004] In the above processing steps, the tubular parts need to be arranged before welding and filling to adjust the head and tail direction of the tubular parts and align them in sequence so that they can be neatly transported to the subsequent processing equipment. In particular, when the surface of the tubular parts is printed with patterns or the tubular parts have been welded with functional heads, the requirements for the direction of the tubular parts are more stringent. Otherwise, defective products will be processed and the yield rate will be reduced. In the existing technology, the tubular parts can only be manually adjusted one by one at the feed end of the processing equipment before being fed into the processing equipment. This purely manual method results in high labor costs and affects production efficiency. At the same time, the high labor intensity can also lead to problems such as lack of concentration and operational errors caused by fatigue in the middle and late stages of production, further affecting production efficiency and product quality. Utility Model Content

[0005] The main purpose of the utility model is to provide a feeding mechanism for tubular parts feeding equipment, which solves the problems existing in the prior art, can replace manual sorting of tubular parts, can output tubular parts in an orderly manner, achieve high automation, reduce labor intensity and improve production efficiency.

[0006] In order to achieve the above objectives, the solution of the present invention is:

[0007] A feeding mechanism of a tubular piece feeding equipment comprises a hopper and a feeding belt conveyor; the hopper is divided into a feeding chamber and a discharging chamber; a discharging belt conveyor with an inclined conveying surface is installed in the feeding chamber, and the belt surface of the discharging belt conveyor is provided with a plurality of push plates extending along the width direction of the belt, and the push plates convey the tubular pieces in the feeding chamber to the discharging chamber as the discharging belt conveyor runs; a discharging window communicating with the discharging chamber is provided on the side of the hopper, and a discharging window which can be lifted and lowered is installed in the discharging chamber. At least one top block is adjacent to the discharge window, the upper surface of the top block is a slope and the lower side of the slope is adjacent to the discharge window, the lifting movement of the top block drives the tubular part in the discharge chamber to lift and lower, when the lower side of the slope of the top block is higher than the bottom surface of the discharge window, the tubular part rolls down and falls from the discharge window under the action of the slope; the feeding belt conveyor is arranged on the side of the silo, and the conveying direction of the feeding belt conveyor is parallel to the slope of the top block; both sides of the feeding belt conveyor are equipped with ribs.

[0008] Two top blocks for lifting movement are arranged at the front and rear of the inner side of the discharge window, and a transfer material placement platform is located between the front and rear top blocks. The transfer material placement platform is relatively fixed to the silo and has an inclined surface in the same direction as the top block.

[0009] Preferably, a feeding motor is provided in the feeding chamber, a turntable is installed on the output shaft of the feeding motor, the front and rear top blocks are installed on the same lifting frame, and the turntable and the lifting frame are linked by a connecting rod; a lifting guide rail is provided in the feeding chamber for the lifting and lowering cooperation of the lifting frame.

[0010] The sidewall of the feeding belt conveyor facing away from the silo is installed on the machine platform of the equipment through a plurality of sidewall adjustment brackets, and the sidewall adjustment brackets are used to adjust the distance between the two sidewalls.

[0011] The feeding mechanism also includes a stacking sensing device arranged above the feeding belt conveyor, and at least one first air blowing nozzle arranged opposite to the discharge window. The stacking sensing device is used to detect whether there are stacked tubular parts on the feeding belt conveyor, and is linked with the first air blowing nozzle through electrical signals.

[0012] Preferably, the first air blowing nozzle is installed on the machine platform of the equipment through an air blowing adjustment bracket, and the air blowing adjustment bracket is used to adjust the installation height and pitch angle of the first air blowing nozzle.

[0013] The feeding mechanism also includes a material shortage sensing device arranged in the feeding chamber, a material jam sensing device arranged in the discharging chamber and at least one second air blowing nozzle; the material shortage sensing device is used to detect whether the material level in the feeding chamber is lower than a preset value; the material jam sensing device is used to detect whether the material level in the discharging chamber is higher than a preset value, and is linked with the second air blowing nozzle through an electrical signal.

[0014] Preferably, the feeding mechanism is provided with a second blowing nozzle at both ends of the discharge window.

[0015] The material bin is provided with a material feeding window and a movable cover plate for movably closing the material feeding window.

[0016] A plurality of universal wheels are provided at the bottom of the silo.

[0017] After adopting the above technical solution, the utility model has the following technical effects:

[0018] The discharging belt conveyor in the feeding chamber can transport the disordered tubular parts manually poured into the feeding chamber to the discharging chamber in batches, and then the top block in the discharging chamber lifts the tubular parts against the side wall of the discharging chamber, and after rising to a certain height, it rolls along the inclined surface and falls into a channel matching the diameter of the tubular parts, so that the tubular parts are arranged one by one on the upper surface of the feeding belt conveyor along the conveying direction of the feeding belt conveyor, and are transported to the front end in an orderly manner by the feeding belt conveyor, realizing automation, reducing labor intensity and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The first embodiment of the present invention is a three-dimensional Figure 1 ;

[0020] Figure 2 The first embodiment of the present invention is a three-dimensional Figure 2 ;

[0021] Figure 3 The first embodiment of the present invention is a three-dimensional Figure 3 ;

[0022] Figure 4 This is a cross-sectional view of a silo according to the first embodiment of the present invention;

[0023] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 6 for Figure 1 Enlarged view of point B in the middle;

[0025] Figure 7 The third embodiment of the present invention is Figure 1 ;

[0026] Figure 8 The third embodiment of the present invention is Figure 2 ;

[0027] Figure 9 for Figure 7 Enlarged view of point C in the middle;

[0028] Figure 10 The direction identification mechanism of the second embodiment of the present invention is a three-dimensional Figure 1 ;

[0029] Figure 11 The direction identification mechanism of the second embodiment of the present invention is a three-dimensional Figure 2 ;

[0030] Figure 12 A perspective view of a third embodiment of the present invention;

[0031] Figure 13 A top view of a third embodiment of the present invention;

[0032] Figure 14 for Figure 12 Enlarged view of point D in the middle;

[0033] Figure 15 The branch robot arm of the third embodiment of the present invention is a three-dimensional Figure 1 ;

[0034] Figure 16 The branch robot arm of the third embodiment of the present invention is a three-dimensional Figure 2 ;

[0035] Figure 17 A perspective view of a fourth embodiment of the present invention;

[0036] Figure 18 A top view of a fourth embodiment of the present invention;

[0037] Figure 19 for Figure 17 Enlarged view of point E in the middle;

[0038] Figure 20 A three-dimensional diagram of a direction identification mechanism according to a fourth embodiment of the present invention;

[0039] Description of Figure Numbers:

[0040] 1-Feeding mechanism; 11-Mixer; 111-Feeding chamber; 112-Discharging chamber; 113-Discharging conveyor belt; 114-Push plate; 115-Discharging window; 116, 116'-Top blocks; 117-Transfer platform, 118-Feeding motor; 119-Turntable; 11a-Lifting frame; 11b-Connecting rod; 11c-Lifting guide rail; 12-Feeding conveyor belt; 121-Side guard; 122-Side guard adjustment bracket; 13-Stacking sensor; 14-First air blowing nozzle; 15-Air blowing adjustment bracket; 16-Out-of-material sensor; 17-Stuck sensor; 18-Second air blowing nozzle; 19-Movable cover; 110-Movable block; 120-First cylinder; 130-Universal wheel;

[0041] 2-transfer robot arm; 21-transfer bracket; 22-swing arm; 23-first turntable; 231-first eccentric shaft; 24-first motor; 25-first crank; 26-horizontal bracket; 261-rotating shaft; 27-transfer nozzle bracket; 28-fixed wheel; 29-transmission belt; 210-tubular motor;

[0042] 3- unloading mechanism; 31- unloading belt conveyor; 32- guide inclined plate; 33- unloading sensing device; 34- fixed plate; 35- plate adjustment bracket; 36- movable plate;

[0043] 4-Machine;

[0044] 5-Branch belt conveyor;

[0045] 6-branching robot arm; 61-branching bracket; 62-second turntable; 63-second motor; 64-horizontal slide rail; 65-horizontal slider; 66-vertical slide bar; 67-fixed block; 68-second crank; 69-branching nozzle bracket;

[0046] 7- direction identification mechanism; 71- pipe head sensing device; 72- identification belt conveyor; 721- limit slot; 73- chuck; 74- marking sensing device; 75- fixed bracket; 76- second cylinder; 77- movable bracket; 78- rotating motor; 79- bearing;

[0047] 8- unloading robot arm;

[0048] a- Tubular member. DETAILED DESCRIPTION

[0049] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0050] refer to Figure 1-20 As shown, the utility model discloses a feeding device for processing tubular parts, comprising a feeding mechanism 1, a transfer robot arm 2 and a feeding mechanism 3, wherein the feeding mechanism 1 comprises a silo 11 and a feeding belt conveyor 12;

[0051] See also Figure 4 The silo 11 is divided into a feeding chamber 111 and a discharging chamber 112; a discharging belt conveyor 113 with an inclined conveying surface is installed in the feeding chamber 111, and the belt surface of the discharging belt conveyor 113 is provided with a plurality of push plates 114 extending along the width direction of the belt. The push plates 114 push the tubular member a at the bottom of the feeding chamber 111 upwards as the discharging belt conveyor 113 runs to realize the conveying to the discharging chamber 112; a discharging window 115 communicating with the discharging chamber 112 is provided on the side of the silo 11, and a discharging window 115 which can be connected to the discharging chamber 112 is installed in the discharging chamber 112. At least one top block 116 capable of lifting and lowering movement and adjacent to the discharge window 115, the top surface of the top block 116 being an inclined surface and the lower side of the inclined surface adjacent to the discharge window 115 (i.e., the lower side of the inclined surface is located on the side adjacent to the discharge window 115, and the higher side is located on the side adjacent to the feed chamber 111), the lifting and lowering movement of the top block 116 drives the tubular member a at the bottom of the discharge chamber 112 to lift and lower, and when the lower side of the inclined surface of the top block 116 is higher than the bottom surface of the discharge window 115, the tubular member a rolls down under the action of the inclined surface and falls from the discharge window 115;

[0052] The feeding belt conveyor 12 is arranged on the side of the silo 11, and the conveying direction of the feeding belt conveyor 12 is parallel to the inclined surface of the top block 116; ribs 121 are installed on both sides of the feeding belt conveyor 12 to form a channel matching the diameter of the tubular member a, so that the tubular member a cannot roll on the feeding belt conveyor 12 to avoid falling;

[0053] The transfer robot arm 2 is arranged at the output end of the feeding belt conveyor 12, and is used to grab the tubular part a and transfer it to the subsequent process, and finally transport the tubular part a to the unloading mechanism 3;

[0054] The output end of the blanking mechanism 3 is connected to the processing equipment of the tubular parts a, so as to output the neatly arranged tubular parts a to the processing equipment for welding and sealing the pipe heads or pipe tails.

[0055] Through the above scheme, the utility model can transport the disordered tubular parts a manually poured into the feeding chamber 111 to the discharging chamber 112 in batches through the discharging belt conveyor 113 in the feeding chamber 111, and then the top block 116 in the discharging chamber 112 lifts the tubular parts a against the side wall of the discharging chamber 112, and after rising to a certain height, it rolls down along the inclined surface and falls into the channel matching the diameter of the tubular parts a, so that the tubular parts a are arranged one by one on the feeding belt conveyor 12 along the conveying direction of the feeding belt conveyor 12. The upper surface of the machine 12 is transported to the front end in an orderly manner by the loading belt conveyor 12, and is transferred to the subsequent process by the transfer robot arm 2, and finally the tubular piece a is transported to the unloading mechanism 3 and output to the processing equipment of the tubular piece a; thus, after manually pouring a large number of tubular pieces a into the silo 11, the utility model can replace manual labor to quickly sort out the large number of tubular pieces, so that they can be transported to the back-end processing equipment in an orderly manner, thereby achieving high automation, reducing labor intensity and improving production efficiency.

[0056] In some embodiments of the present invention, see Figure 4 Two lifting blocks 116 are located inside the discharge window 115, each capable of lifting and lowering. A transfer platform 117 is located between the front and rear lift blocks 116 and 116'. The transfer platform 117 is fixed relative to the hopper 11 and has an inclined surface oriented in the same direction as the lift block 116. Thus, the tubular member a is conveyed upward in a step-by-step manner through the cooperation of the rear lift block 116', the transfer platform 117, and the front lift block 116.

[0057] Furthermore, a loading motor 118 is provided in the above-mentioned feeding chamber 111, and a turntable 119 is installed on the output shaft of the loading motor 118. The front and rear top blocks 116 and 116' are installed on the same lifting frame 11a. The turntable 119 and the lifting frame 11a are linked by a connecting rod 11b. Therefore, one motor can simultaneously drive the two top blocks 116 to perform synchronous lifting movements on the front and rear sides of the transfer platform 117, thereby meeting production needs and saving costs.

[0058] Secondly, the feed chamber 111 is provided with a lifting guide rail 11c for the lifting and lowering cooperation of the lifting frame 118.

[0059] At the same time, the length of the top block 116 is not less than the width of the discharge window 115 .

[0060] In some embodiments of the present invention, see Figure 5The side rib 121 on the side of the feeding belt conveyor 12 facing away from the silo 11 is installed on the machine platform 4 of the equipment through a number of side rib adjustment brackets 122. The side rib adjustment bracket 122 is composed of a bracket body, an adjusting screw and other components. The adjusting screw is connected to the side rib 121. By turning the adjusting screw, the side rib 121 can be driven to move, and then the distance between it and the other side rib can be adjusted, so that the equipment can adapt to the production of tubular parts a with different diameters.

[0061] In some embodiments of the present invention, see Figure 5 The feeding mechanism 1 further includes a stacking sensor 13 disposed above the feeding conveyor 12, and at least one first air blowing nozzle 14 disposed opposite the discharge window 115. The stacking sensor 13 is used to detect whether there are stacked tubular components a on the feeding conveyor 12 and is programmed to operate in conjunction with the first air blowing nozzle 14. When more than one tubular component a is ejected from the ejector block 116 at the same position and stacked on the feeding conveyor 12, the stacking sensor 13 will detect the stacked tubular components as the feeding conveyor 12 advances, thereby activating the first air blowing nozzle 14 to blow the tubular components back into the discharge chamber 112.

[0062] Preferably, the stacking sensing device 13 implements its detection function by infrared, photoelectric sensing or the like.

[0063] Preferably, the first air blowing nozzle 14 is installed on the machine platform 4 of the equipment through an air blowing adjustment bracket 15. The air blowing adjustment bracket 15 is used to adjust the installation height and pitch angle of the first air blowing nozzle 14 so as to adjust the direction of the first air blowing nozzle 14 according to different production requirements.

[0064] In some embodiments of the present invention, the feeding mechanism 1 further includes a material shortage sensing device 16 provided in the feeding chamber 111, a material jam sensing device 17 provided in the discharging chamber 112, and at least one second air blowing nozzle 18; the material shortage sensing device 16 is used to detect whether the material level in the feeding chamber 111 is lower than a preset value, so as to remind workers to refill the material; the material jam sensing device 17 is used to detect whether the material level in the discharging chamber 112 is higher than a preset value, so as to avoid the situation where tubular parts are stacked near the discharging window and cannot be discharged due to unexpected situations such as material jams, and is linked to the second air blowing nozzle 18 through program settings. When the material level near the discharging window 115 is higher than the preset value, the device will automatically activate the second air blowing nozzle 18 to blow the stuck tubular part a to the bottom of the discharging chamber 112, and then it will be re-transported by the top block 116.

[0065] Preferably, the material shortage sensing device 16 and the material jam sensing device 17 both use infrared, photoelectric sensing and other methods to realize their detection functions.

[0066] Preferably, the feeding mechanism 1 is provided with a second blowing nozzle 18 at both ends of the discharge window 115 to prevent the material from being stuck at both ends of the top block 116 .

[0067] In some embodiments of the present invention, the silo 11 is provided with a feed window and a movable cover 19 for movably closing the feed window.

[0068] In some embodiments of the present invention, a plurality of universal wheels 130 are provided at the bottom of the silo 11 to facilitate the movement of the silo 11 .

[0069] It is understood that the feeding mechanism consisting of the hopper 11 and the feeding belt 12 disclosed above can be independent of the feeding equipment of the present invention, and can be used to realize the conveyance of tubular parts a one by one to the front end along the conveying direction of the feeding belt 12, and can also be adapted to other types of tubular part feeding equipment. Therefore, the present invention also discloses a feeding mechanism of tubular part feeding equipment, including the above-mentioned hopper 11 and the feeding belt 12.

[0070] In some embodiments of the present invention, see Figure 6The transfer robot arm 2 includes a transfer bracket 21, a swing arm 22, a first turntable 23, a first motor 24, a first crank 25, a horizontal bracket 26, a nozzle bracket 27, a fixed wheel 28 and a transmission belt 29; the transfer bracket 21 is relatively fixed on the machine table 4 of the equipment; the lower end of the swing arm 22 and the first turntable 23 are both rotatably matched on the transfer bracket 21, and the first turntable 23 is driven by the first motor 24 to rotate; the two ends of the first crank 25 are respectively connected to the first eccentric shaft 2 on the first turntable 23 31. The positions between the two ends of the swing arm 22 are rotated to realize the transmission between the first turntable 23 and the swing arm 22; the rotating shaft 261 of the horizontal bracket 26 is passed through the upper end of the swing arm 22, and a horizontally rotatable transfer nozzle bracket 27 is installed on its lower surface. A plurality of nozzles are installed along the lower surface of the transfer nozzle bracket 27 in a straight line direction for realizing the use of negative pressure to suck the tubular member a; the fixed wheel 28 is relatively fixed at the lower end position of the swing arm 22; the transmission belt 29 is wound around the rotating shaft 261 and the fixed wheel 28 and is tensioned. Through the above structure, the rotary motion output by the first motor 24 can be converted into the left and right swing of the swing arm 22, so as to drive the transfer suction nozzle bracket 27 to move back and forth between the left and right extreme points, and transfer the tubular parts a that have been arranged in order on the feeding belt conveyor 12 to the back-end process one by one; and the action performed by the robot arm of this structure is simple, the action interval is short, and the stability is good, which helps to improve the transfer efficiency of the tubular parts a to the back-end process and avoid blockage at the front end; at the same time, with the cooperation of the fixed wheel 28 and the transmission belt 29, the swing arm 22 can always keep the horizontal bracket 26 in a horizontal state when swinging, that is, the tubular part a grasped by the transfer robot arm 2 is always in a horizontal state, realizing smooth rising and falling, which is conducive to the smooth connection of the front and rear processes, and the above-mentioned left and right swing can ensure that the tubular part a will not deviate in the left and right directions of the feeding belt conveyor 2, so that the tubular part a maintains the output direction of the feeding belt conveyor 2 and is transported to the back-end process.

[0071] Preferably, a tubular motor 210 is provided between the horizontal support 26 and the transfer nozzle support 27 to drive the transfer nozzle support 27 to rotate horizontally. The tubular motor 210 is relatively small in size and is more suitable for the device of the present invention.

[0072] Preferably, the above-mentioned feeding mechanism 1 is provided with a movable stopper 110 which moves horizontally along the width direction of the feeding belt conveyor 12 at the output end of the feeding belt conveyor 12. The movable stopper 110 is used to prevent the tubular member a from falling from the output end of the feeding belt conveyor 12, and when the movable stopper 110 is removed from the output end of the feeding belt conveyor 12, it can make space for the tubular member a to be transferred by the transfer robot 2 to avoid obstruction (because the tubular member a will be driven to move along a parabolic trajectory, and the initial stage of movement may be blocked by the movable stopper 110, which is required to give way).

[0073] Furthermore, the movable stopper 110 is driven by the first cylinder 120 and maintains a positively correlated movement frequency with the transfer robot 2, that is, after the transfer robot 2 grabs the tubular member a, the movable stopper 110 retracts to make way, and after the tubular member a is grabbed, the movable stopper 110 extends again and blocks the next tubular member.

[0074] In some embodiments of the present invention, a plurality of anti-slip grooves are provided on the circumference of the fixed wheel 28 to prevent the transmission belt 29 from sliding relative to the fixed wheel 28 .

[0075] In some embodiments of the present invention, the above-mentioned unloading mechanism 3 includes a unloading belt conveyor 31 and a guide inclined plate 32; the conveying direction of the unloading belt conveyor 31 is perpendicular to the conveying direction of the loading belt conveyor 12, so that the unloading belt conveyor 31 extends in the width direction of the equipment, thereby reducing the overall length of the equipment; the guide inclined plate 32 is arranged at the input end of the unloading belt conveyor 31, and the upper end of the guide inclined plate 32 matches the mechanism height connected to the front end of the unloading mechanism 3, so that the tubular member a rolls to the unloading belt conveyor 31.

[0076] Preferably, see Figure 6 A discharge sensing device 33 is provided at the upper end of the guide ramp 32 to detect whether the tubular member a is on the guide ramp 32. When the discharge sensing device 33 detects the tubular member a, it indicates that the tubular member a on the guide ramp 32 has not rolled off, that is, the unloading belt conveyor 31 is blocked, or the discharged tubular member a has not yet been delivered to the downstream processing equipment. In this case, the loading equipment can be paused through a program to stop the discharge of the tubular member a.

[0077] Furthermore, the discharge sensing device 33 can realize its detection function by infrared, photoelectric sensing or the like.

[0078] Preferably, see Figure 2 The unloading mechanism 3 further includes a fixed plate 34 disposed on one side of the unloading conveyor 31, a plate adjustment bracket 35 disposed above the unloading conveyor 31, and a movable plate 36 mounted at the adjustment end of the plate adjustment bracket 35 and parallel to the fixed plate 34. The plate adjustment bracket 35 can be used to adjust the length of the movable plate 36 and the fixed plate 34 to match the length of the tubular member a, ensuring that the tubular member a does not deviate when being discharged by the unloading conveyor 31.

[0079] In some embodiments of the present invention, to increase the number of tubular members a output per unit time and thereby improve the production efficiency of the equipment, at least one branch belt conveyor 5 (such as those described in Embodiments 3 and 4 below) is arranged in parallel with the feeding belt conveyor 12 to simultaneously organize the tubular members a at multiple stations, and a branch robot arm 6 is provided for transferring the tubular members a from the feeding belt conveyor 2 to the branch belt conveyor 5. The output end of the branch belt conveyor 5 is aligned with the output end of the feeding belt conveyor 12, and the transfer robot arm 2 simultaneously grasps multiple tubular members a for transfer to subsequent processes. The branch belt conveyor 5 can adopt the same design as the feeding belt conveyor 12, namely, a corresponding rib to prevent the tubular members a from rolling off.

[0080] Preferably, see Figure 14-16 The above-mentioned branch robotic arm 6 includes a branch bracket 61, a second turntable 62, a second motor 63, a horizontal slide rail 64, a horizontal slider 65, a vertical slide bar 66, a fixed block 67, a second crank 68 and a branch suction nozzle bracket 69; the branch bracket 61 is relatively fixed on the machine table 4 of the equipment; the second turntable 62 is rotatably matched on the branch bracket 61 and is driven by the second motor 63 to rotate; the horizontal slide rail 64 is installed on the branch bracket 61 along a direction perpendicular to the branch belt conveyor 5, and a horizontal slider 65 is slidably matched thereon; the vertical slide bar 66 is slidably penetrated by the horizontal slider 65 along the vertical direction, and a fixed block 67 is fixed at the upper end thereof; the two ends of the second crank 68 are respectively rotatably matched with the second eccentric shaft and the side of the fixed block 67 on the second turntable 62 to realize the transmission between the second turntable 62 and the fixed block 67; the branch suction nozzle bracket 69 is installed at the lower end of the vertical slide bar 66, and a plurality of suction nozzles are installed on its lower surface along the straight line direction for realizing the use of negative pressure to suck the tubular member a. Through the above structure, the rotational motion output by the second motor 63 can be converted into parabolic motion of the branch suction nozzle bracket 69 between the feeding belt conveyor 12 and the branch belt conveyor 5, so as to realize the transfer of the tubular part a on the feeding belt conveyor 12 to the branch belt conveyor 5; and the branch robotic arm 6 only needs one driving device of the second motor 63, which has the advantages of simple structure, simple movement, and energy saving.

[0081] In actual production, the tubular components to be sorted may have requirements for the end orientation. For example, when the tubular components A poured into the hopper 11 are already welded with their ends sealed, or when the tubular components A have patterns printed on their surfaces, it is strictly required that the ends of the tubular components A outputted by the feeding equipment face the same direction to facilitate connection with subsequent processing steps. To this end, it is necessary to design a relevant direction recognition mechanism 7 to determine the end orientation of the tubular components A outputted by the feeding belt conveyor 12.

[0082] In some embodiments of the present invention (such as the following embodiment 1), see Figure 6The aforementioned direction recognition mechanism 7 includes a tube-end sensing device 71 disposed at the output end of the feeding conveyor 12. The tube-end sensing device 71 is used to detect the tube end of the tubular member a and is programmed to operate in conjunction with the transfer robot 2. It is understood that when the tube-end sensing device 71 detects the tube end, it means that the head of the tubular member a is facing the front end in the conveying direction. Otherwise, it means that the tail of the tubular member a is facing the front end in the conveying direction. This situation is defined as "opposite orientation" through programming. When "opposite orientation" is detected, the transfer robot 2 is controlled to rotate it horizontally 180° to correct the orientation while transferring the tubular member a.

[0083] In some embodiments of the present invention (such as the following embodiments 2 and 4), a blanking robot arm 8 is further included. The blanking robot arm 8 can adopt the same structural design as the transfer robot arm 2 and is used to transfer the tubular member a between the front and rear end mechanisms. Alternatively, an existing robot arm can be adopted as long as it can meet the function of transferring the tubular member a. Figure 9-11 , 19 and 20, the direction identification mechanism 7 includes an identification belt conveyor 72, a clamping head 73 and a mark sensing device 74; the belt surface of the identification belt conveyor 72 is provided with a plurality of limit grooves 721 extending along the belt width direction, and each limit groove 721 accommodates a tubular member a; at least one pair of clamping heads 73 that can move linearly and rotate toward each other are provided on both sides of the identification belt conveyor 72; a mark sensing device 74 is provided above the clamping head 73, and the mark sensing device 74 is used to detect special marks with end features on the surface of the tubular member a (such as a darker color pattern, a hollow hole or other "special mark" located at one end of the tubular member a); when the tubular member a is conveyed between the clamping heads 73, the two clamping heads 73 move toward each other and clamp the end of the tubular member a and then drive the tubular member a to rotate at least one circle (i.e. 360°) so that the mark sensing device 74 can detect the circumference of the tubular member a.

[0084] Preferably, a fixed bracket 75 is provided on the side of the identification belt conveyor 72, a second cylinder 76 is mounted on the fixed bracket 75, a movable bracket 77 is mounted on the output end of the second cylinder 76, a rotary motor 78 is mounted on the movable bracket 77, and the chuck 73 is mounted on the output end of the rotary motor 78. In this way, the chuck 73 can move toward each other and rotate. It is understandable that when the feeding equipment is multi-station, the second cylinder 76 can simultaneously drive multiple movable brackets 77 to achieve synchronous movement of multiple pairs of chucks 73 toward each other, and simultaneously detect multiple tubular parts a (see Figure 20 ).

[0085] Furthermore, on the movable brackets 77 that cooperate with the same pair of chucks 73, one of the movable brackets 77 is installed with the above-mentioned rotating motor 78, and the other movable bracket 77 is installed with a bearing 79 for the chucks 73 to rotate with.

[0086] Four embodiments of the present invention are shown below, specifically:

[0087] See also Figure 1-6 , shows the first embodiment of the utility model.

[0088] The first embodiment outputs tubular parts a at a single station and relies on the tube head sensing device 71 as a mechanism for identifying the orientation of the tubular parts a. The orientation of the output tubular parts a can be corrected and is suitable for tubular parts a that have been welded with tube heads.

[0089] See also Figure 7-11 , shows the second embodiment of the present utility model.

[0090] The second embodiment is a single-station output of the tubular member a, and relies on the mark sensing device 74 as the orientation identification mechanism of the tubular member a. It is suitable for the tubular member a with a pattern printed on the surface.

[0091] See also Figure 12-16 , shows the third embodiment of the present utility model.

[0092] The third embodiment is a double-station output tubular member a, which doubles the efficiency but does not have the direction recognition function.

[0093] See also Figure 17-20 , shows the fourth embodiment of the present utility model.

[0094] The fourth embodiment is a dual-station output tubular member a, which doubles the efficiency and relies on the mark sensing device 74 as the orientation recognition mechanism of the tubular member a to correct the orientation of the output tubular member a. It is suitable for tubular members a with patterns printed on the surface.

[0095] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A feeding mechanism for a tubular part feeding device, characterized in that: Including silo and feeding belt conveyor; The material bin is divided into a feeding chamber and a discharging chamber; a discharging belt conveyor with an inclined conveying surface is installed in the feeding chamber, and the belt surface of the discharging belt conveyor is provided with a plurality of push plates extending along the width direction of the belt, and the push plates convey the tubular parts in the feeding chamber to the discharging chamber as the discharging belt conveyor runs; a discharging window connected to the discharging chamber is provided on the side of the material bin; at least one top block capable of lifting and moving adjacent to the discharging window is installed in the discharging chamber, the upper surface of the top block is an inclined surface and the lower side of the inclined surface is adjacent to the discharging window, and the lifting movement of the top block drives the tubular parts in the discharging chamber to move up and down, and when the lower side of the inclined surface of the top block is higher than the bottom surface of the discharging window, the tubular parts roll down under the action of the inclined surface and fall from the discharging window; The feeding belt conveyor is arranged on the side of the silo, and the conveying direction of the feeding belt conveyor is parallel to the inclined surface of the top block; and ribs are installed on both sides of the feeding belt conveyor.

2. The feeding mechanism of the tubular member feeding equipment according to claim 1, characterized in that: Two top blocks for lifting movement are arranged at the front and rear of the inner side of the discharge window, and a transfer material placement platform is located between the front and rear top blocks. The transfer material placement platform is relatively fixed to the silo and has an inclined surface in the same direction as the top block.

3. The feeding mechanism of the tubular member feeding equipment according to claim 2, characterized in that: A feeding motor is provided in the feeding chamber, a turntable is installed on the output shaft of the feeding motor, and the front and rear top blocks are installed on the same lifting frame. The turntable and the lifting frame are linked by a connecting rod; a lifting guide rail is provided in the feeding chamber for the lifting frame to cooperate with the lifting.

4. The feeding mechanism of the tubular member feeding equipment according to claim 1, characterized in that: The sidewall of the feeding belt conveyor facing away from the silo is installed on the machine platform of the equipment through a plurality of sidewall adjustment brackets, and the sidewall adjustment brackets are used to adjust the distance between the two sidewalls.

5. The feeding mechanism of the tubular member feeding equipment according to claim 1, characterized in that: The feeding mechanism also includes a stacking sensing device arranged above the feeding belt conveyor, and at least one first air blowing nozzle arranged opposite to the discharge window. The stacking sensing device is used to detect whether there are stacked tubular parts on the feeding belt conveyor, and is linked with the first air blowing nozzle through electrical signals.

6. The feeding mechanism of the tubular member feeding equipment according to claim 5, characterized in that: The first air blowing nozzle is installed on the machine platform of the equipment through an air blowing adjustment bracket, and the air blowing adjustment bracket is used to adjust the installation height and pitch angle of the first air blowing nozzle.

7. The feeding mechanism of the tubular member feeding equipment according to claim 1, characterized in that: The feeding mechanism also includes a material shortage sensing device arranged in the feeding chamber, a material jam sensing device arranged in the discharging chamber and at least one second air blowing nozzle; the material shortage sensing device is used to detect whether the material level in the feeding chamber is lower than a preset value; the material jam sensing device is used to detect whether the material level in the discharging chamber is higher than a preset value, and is linked with the second air blowing nozzle through an electrical signal.

8. The feeding mechanism of the tubular member feeding equipment according to claim 7, characterized in that: The feeding mechanism is provided with a second blowing nozzle at both ends of the discharge window.

9. The feeding mechanism of the tubular member feeding equipment according to claim 1, characterized in that: The material bin is provided with a material feeding window and a movable cover plate for movably closing the material feeding window.

10. The feeding mechanism of the tubular member feeding equipment according to claim 1, characterized in that: A plurality of universal wheels are provided at the bottom of the silo.

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