Full-automatic tea packaging machine

Abstract

The application relates to the technical field of packaging machines, and discloses a full-automatic packaging machine for tea processing, which is used for solving the problem that a packaging bag cannot be opened in place, and a bag opening assembly is arranged at the bottom of a feeding basket channel to assist opening; if the bag opening assembly normally opens the bag opening of the packaging bag, the restriction on a material blocking body is released, the material blocking body goes up to open the feeding basket channel, and the weighed tea is sent into the packaging bag; if the bag opening assembly fails to normally open the bag opening of the packaging bag, the movement of the material blocking body is limited, the feeding basket channel cannot be opened, and the tea is prevented from being output, so that the effects of auxiliary opening and opening detection are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging machinery, and particularly relates to a full-automatic packaging machine for tea processing. BACKGROUND

[0002] The full-automatic packaging machine for tea processing is a modern equipment integrating automatic metering, bagging and sealing functions, which completes the full-process automatic operation of tea from quantitative filling to finished product packaging through a servo control system, and is widely applied to large-scale production scenes of various loose tea or granular tea such as green tea, black tea and oolong tea.

[0003] In the tea bagging link, the current mainstream equipment adopts two relatively moving pneumatic suction cups to pull open the packaging bag. In the specific operation, the pneumatic suction cups are driven by the pneumatic device to adsorb the two sides of the packaging bag, and then pull it open through relative movement. After the packaging bag is completely unfolded, the weighed tea is directly poured into it. However, in the actual application process, due to the influence of many factors such as the material of the packaging bag, the surface flatness and the pressure stability of the pneumatic device, the packaging bag opening is not normal or not in place when the pneumatic suction cup pulls it open. Once this problem occurs, the tea poured subsequently will scatter outside due to the abnormal opening of the packaging bag, not only causing waste of tea, but also affecting the cleanliness of the production environment and increasing the workload of subsequent cleaning work.

[0004] Moreover, the packaging bags used at present are mostly designed as open type, and the bottom thereof is connected through a heat sealing process, but it is difficult to intuitively judge whether the heat-sealed packaging bag truly meets the actual demand in the actual application. For example, after the tea is packaged, if the heat sealing strength of the packaging bag is insufficient, the heat-sealed bottom is easily opened in the subsequent handling or stacking process, causing tea leakage and seriously affecting product quality. Therefore, an equipment capable of detecting whether the packaging bag is opened in place and the heat sealing strength of the packaging bag is firm in real time is urgently needed. SUMMARY

[0005] The present application provides a full-automatic packaging machine for tea processing, which has the advantages of auxiliary opening and opening / bag bottom heat sealing strength detection, to solve the problems of packaging bag opening not in place and bag bottom heat sealing strength not easy to detect in the background technology.

[0006] In order to achieve the above object, the following technical scheme is adopted: A kind of full-automatic packaging machine for tea processing, comprising: support, top is equipped with the bunker of tea leaf, vibration feedway is provided below bunker, and weighing box is fixedly installed in the inside of support;Bag supporting assembly is installed in the bottom of support, for opening packaging bag from outside;Feeding assembly is used to transport tea leaf after weighing in weighing box to packaging bag, and feeding assembly includes feeding cylinder fixed on support, and the output end of feeding cylinder is fixedly installed with feeding basket channel;Adjusting motor is fixedly installed on the top of feeding basket channel, and the output shaft of adjusting motor is connected with baffle body by screw rod, and baffle body is sleeved on the inside of feeding basket channel;Adjusting motor drives baffle body to move up and down along the inside of feeding basket channel by screw rod, to realize the on-off control of conveying passage between feeding basket channel and packaging bag.

[0007] Further, bag supporting assembly includes support sliding block movably installed in the bottom of support, support sliding block is driven by servo linear drive assembly, servo turnover motor is fixedly installed at the end of support sliding block, and the output end of servo turnover motor is fixedly installed with turnover frame, and active frame driven by spring is movably installed on the top of turnover frame, and pneumatic suction cup is arranged on active frame and communicated with vacuum pump, and passive clamping frame driven by spring is movably installed on the side of support, and pneumatic suction cup is fixedly installed on passive clamping frame.

[0008] Further, material sorting box is fixedly installed on the bottom of support and located at one side of bag supporting assembly, and opening is arranged at one end of material sorting box, and rectangular protrusion is arranged on opening, packaging bag is placed in material sorting box, and material ejecting cylinder is fixedly installed on the end of material sorting box away from opening.

[0009] Further, feeding basket channel includes rectangular conveying pipeline at bottom and tea storage hopper at middle.

[0010] Further, opening assembly is arranged at the bottom of feeding basket channel to assist opening packaging bag, and opening assembly mainly includes guide sliding block, permanent magnet and opening frame, two guide round rods are fixedly connected at the bottom of feeding basket channel, and guide sliding block is movably installed on the outside of guide round rod and located at both sides of the bottom of feeding basket channel, and nut is threadedly connected with the end of guide round rod, spring is arranged between nut and guide sliding block, opening frame is fixedly connected at the bottom of guide sliding block, permanent magnet with opposite magnetic surface is fixedly installed on two guide sliding blocks, and magnetic repulsion exists between two permanent magnets.

[0011] Further, detection assembly is fixedly connected with support at the top of one guide sliding block, and detection assembly mainly includes detection disc fixedly installed with support, detection sliding block is movably installed on the surface of detection disc, spring is fixedly connected between detection sliding block and detection disc, locking push rod is fixedly installed at the end of detection sliding block, and limiting step is formed in the middle of one side of baffle body, and baffle body can be limited to move upward when locking push rod reaches limiting step.

[0012] Further, the material blocking body is a magnetic blocking material.

[0013] Further, a position detection block is fixedly installed on the top of the material blocking body, an initial switch is fixedly installed on the side of the feeding basket channel, and a to-position switch is located above the initial switch.

[0014] Further, a through groove is formed in the side of the material blocking body, a separation switch is fixedly installed on the side of the detection disc, and a one-way limiting tooth row is fixedly installed on the side of the material blocking body and above the limiting step.

[0015] Further, the side of a single tooth of the one-way limiting tooth row is in the shape of a right triangle.

[0016] The present application has the following advantages:

[0017] The present application provides a full-automatic packaging machine for tea processing. The opening component for assisting in opening of a packaging bag is arranged at the bottom of the feeding basket channel. If the opening component normally opens the bag opening of the packaging bag, the restriction on the material blocking body is released. After the material blocking body goes up, the feeding basket channel is opened, and the tea that has been weighed is sent from the feeding basket channel into the packaging bag. Similarly, if the opening component does not normally open the bag opening of the packaging bag, the movement of the material blocking body is restricted, so that the feeding basket channel is not opened, and the tea is prevented from being outputted outward, thereby achieving the effects of assisting in opening and opening detection.

[0018] Furthermore, after the tea is normally inputted into the packaging bag, the separation strength of the packaging bag from the opening component and the bag supporting component is increased due to the inner and outer clamping of the packaging bag by the opening component and the bag supporting component. When the material blocking body is inserted into the packaging bag and presses the tea, if the packaging strength of the bottom of the packaging bag is sufficient, the packaging bag is separated from the opening component and the bag supporting component due to the jolt of the tea on the bottom of the packaging, and is sent to the subsequent opening and packaging process. Similarly, if the packaging strength of the bottom of the packaging bag is insufficient, the bottom of the packaging bag is broken when the material blocking body presses the tea, and the packaging bag cannot be separated from the opening component and the bag supporting component. In this way, the hot sealing strength of the bottom of the packaging bag is detected by pressing the tea in the packaging bag. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only the embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of the provided drawings:

[0020] Figure 1 It is a schematic diagram of the overall external three-dimensional structure of the present application;

[0021] Figure 2 The installation position of each component of the feeding assembly and the schematic diagram of the three-dimensional structure thereof;

[0022] Figure 3 The installation position of each component of the bag supporting assembly and the schematic diagram of the three-dimensional structure thereof;

[0023] Figure 4 The installation position of each component of the bag storing assembly and the schematic diagram of the three-dimensional structure thereof;

[0024] Figure 5 The installation position of the mouth opening assembly and the schematic diagram of the three-dimensional structure thereof;

[0025] Figure 6 The position of the permanent magnet;

[0026] Figure 7 The installation position of each component of the detection assembly and the schematic diagram of the three-dimensional structure thereof;

[0027] Figure 8 The schematic diagram of the three-dimensional structure of the material blocking body.

[0028] In the figure: 1, support; 2, material bin; 3, vibrating material conveying channel; 4, weighing box; 5, feeding assembly; 501, feeding cylinder; 502, feeding basket channel; 6, bag storing assembly; 601, material sorting box; 602, top material cylinder; 7, bag supporting assembly; 701, supporting sliding block; 702, servo linear driving assembly; 703, servo overturning motor; 704, overturning frame; 705, movable frame; 706, pneumatic suction disc; 707, passive clamping frame; 8, adjusting motor; 9, material blocking body; 900, through groove; 901, limiting step; 902, one-way limiting tooth row; 10, position detection block; 1001, initial switch; 1002, in-place switch; 11, detection assembly; 110, detection disc; 111, detection sliding block; 112, disengaging switch; 113, locking push rod; 12, mouth opening assembly; 121, guide sliding seat; 122, permanent magnet; 123, mouth opening frame. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Embodiment one, please refer to Figure 1It can be seen that the support 1 is constructed into a rectangular frame by aluminum alloy square tubes, thereby providing effective installation and support for the whole device. The support 1 has a bolt-fastened installation of a hopper 2 at the top, which is mainly used for placing tea leaves to be packaged. The bottom of the hopper 2 is generally provided with a discharge valve, through which the tea leaves can be controlled to be discharged. The inside of the support 1 is fixedly installed with a vibrating feed channel 3 below the hopper 2. The vibrating feed channel 3 is generally equipped with a vibrating motor. The vibrating feed channel 3 can relatively uniformly convey the tea leaves discharged from the hopper 2 to the next process. Next, the inside of the support 1 is fixedly installed with a weighing box 4 with an opening below the vibrating feed channel 3. The upper and lower openings of the weighing box 4 are both provided with electromagnetic on-off valves. When the upper electromagnetic valve is opened, the tea leaves are conveyed into the weighing box 4. The tea leaves can be weighed through the weighing box 4. Then, the weighing box 4 closes the upper electromagnetic on-off valve and waits for the lower electromagnetic on-off valve to open, so as to discharge the weighed tea leaves to the next process.

[0031] From Figures 1-4It can be seen that the support 1 bottom is provided with a bag opening component 7 for pulling the packaging bag from the outside, specifically, the bag opening component 7 comprises a supporting slider 701 movably installed at the bottom of the support 1, and the supporting slider 701 can only move in one-way horizontal reciprocation, and the bottom of the support 1 is fixedly provided with a servo linear drive component 702 for driving the supporting slider 701 to move, which generally comprises a servo motor and a screw rod, the screw rod is fixed on the servo motor, and the screw rod is in threaded connection with the supporting slider 701, and the servo motor is used for driving the screw rod to rotate, so that the directional / distance reciprocation of the supporting slider 701 is controlled. The end of the supporting slider 701 is fixedly provided with a servo overturning motor 703, and the output end of the servo overturning motor 703 is fixedly provided with an overturning frame 704, and the servo overturning motor 703 can be used for directional deflection of the overturning frame 704 and locking at an adjusted angle. The top of the overturning frame 704 is movably provided with a movable frame 705 pushed by a spring, and the movable frame 705 is provided with a pneumatic suction cup 706 in communication with a vacuum pump; correspondingly, the side of the support 1 is movably provided with a passive clamping frame 707 pushed by a spring, and the passive clamping frame 707 is also fixedly provided with the pneumatic suction cup 706, and the passive clamping frame 707 and the movable frame 705 are oppositely arranged. In actual application, when the supporting slider 701 pulls the movable frame 705 to move close to the passive clamping frame 707, the packaging bag on the movable frame 705 and attracted by the pneumatic suction cup 706 is also close to the passive clamping frame 707, and after being attached to the pneumatic suction cup 706 on the other side of the passive clamping frame 707, the pneumatic suction cups 706 on the passive clamping frame 707 and the movable frame 705 are used for respectively attracting and fixing the two sides of the packaging bag. Finally, when the supporting slider 701 drives the movable frame 705 to move away from the passive clamping frame 707, the movable frame 705 and the passive clamping frame 707 are relatively far away from each other by attracting and fixing the packaging bag on the outside, so that the packaging bag is opened.

[0032] Furthermore, the embodiment further discloses how to place the packaging bag on the movable frame 705, in combination with Figure 1 , Figure 3 and Figure 4It can be seen that the support 1 bottom fixed installation is located in the bag support assembly 7 horizontal side of the material box 601, and the material box 601 one end is provided with an opening, and a rectangular protrusion is arranged on the opening. The packaging bag is neatly placed in the material box 601, and a top cylinder 602 is fixedly installed on the end away from the opening of the material box 601. The output end of the top cylinder 602 pushes the packaging bag to move in the opening direction, and the packaging bag closest to the opening is placed on the rectangular protrusion. When the packaging bag on the movable frame 705 is packed and separated, the servo overturning motor 703 drives the overturning frame 704 to rotate 180°, so that the movable frame 705 faces the opening direction of the material box 601. Secondly, the servo linear drive assembly 702 pushes the supporting sliding block 701 to move towards the storage bag assembly 6, so that the pneumatic suction cup 706 on the movable frame 705 finally sticks to the packaging bag close to the opening in the material box 601. Finally, the servo linear drive assembly 702 retracts the supporting sliding block 701, which makes the pneumatic suction cup 706 take out the packaging bag close to the opening. Then, the servo overturning motor 703 drives the overturning frame 704 to rotate 180° again, so that the movable frame 705 and the passive clamping frame 707 are relatively positioned again. Then, according to the above content, the packaging bag is pulled out from the outside again.

[0033] In order to make the tea into the packaging bag, combined with Figure 2 、 Figure 5 、 Figure 6 and Figure 8 It can be seen that the support 1 middle fixed installation is located in the packaging bag above the feeding assembly 5 which is used to transport the tea weighed by the weighing box 4. The feeding assembly 5 includes a feeding cylinder 501 fixedly installed in the middle of the support 1, and the output end of the feeding cylinder 501 is fixedly installed with a feeding basket 502 located above the packaging bag. When the packaging bag is opened, the feeding cylinder 501 pushes the feeding basket 502 to move vertically downward, and the bottom end of the feeding basket 502 enters the packaging bag. Then, the electromagnetic valve at the bottom of the weighing box 4 is opened, and the tea falls into the feeding basket 502 and is directly fed into the packaging bag which has been opened, realizing the packaging of the tea.

[0034] In the actual application of this embodiment, the packaging bag in the storage bag assembly 6 is taken out by the bag support assembly 7, and the relative movement between the movable frame 705 and the passive clamping frame 707 is used to open the packaging bag. Secondly, the tea in the hopper 2 is transported to the weighing box 4 through the vibrating feeding channel 3, and after the weighing is completed, it is waiting to be sent into the packaging bag.

[0035] The feeding basket 502 is pushed down by the feeding cylinder 501, and is close to the bag opening of the packaging bag. Then, the weighing box 4 delivers tea into the feeding basket 502, and then the tea is delivered into the packaging bag through the feeding basket 502. In this embodiment, the pneumatic suction cup 706 stops working, the packaging bag falls to the lower side, and enters the subsequent end sealing process.

[0036] The second embodiment is further improved on the basis of the first embodiment. In order to ensure that the tea can accurately fall into the packaging bag, the second embodiment detects the opening of the packaging bag to avoid the problem that the opening of the packaging bag is not normally opened when the tea is delivered. For details, please refer to Figure 2 、 Figure 5 、 Figure 6 and Figure 8 It can be seen that the adjusting motor 8 is fixedly installed at the top of the feeding basket 502, and the output shaft of the adjusting motor 8 is threadedly connected with the material blocking body 9 through a lead screw. A torque limiter is preferably arranged between the adjusting motor 8 and the lead screw, so that the power output can be cut off when the transmission torque is too large, thereby preventing the equipment from being damaged due to overload. Figure 5 As can be clearly seen from Figure 5 , the material blocking body 9 is in the shape of a cuboid, and the feeding basket 502 mainly includes a rectangular conveying pipeline at the bottom (A part in Figure 5 ) and a tea storage hopper at the middle (B part in Figure 5 ), and the material blocking body 9 corresponds to the rectangular conveying channel of the feeding basket 502. When the material blocking body 9 is inserted into the conveying channel of the feeding basket 502, it is blocked by the material blocking body 9, so that the conveying channel is blocked, and the tea in the tea storage hopper will not fall at this time. As can be seen, the adjusting motor 8 controls the up-down movement of the material blocking body 9, so that the material blocking body 9 opens and closes the conveying channel of the feeding basket 502. In this way, when the feeding basket 502 goes up and is close to the weighing box 4, the tea in the weighing box 4 that has been weighed can fall into the feeding basket 502 for buffering. When the feeding basket 502 goes down and is close to the packaging bag, the tea in the feeding basket 502 can be directly delivered into the packaging bag, avoiding the problem that the tea in the weighing box 4 accidentally falls outside due to the increase of the relative height between the weighing box 4 and the feeding basket 502 when the tea is poured into the feeding basket 502.

[0037] Furthermore, in combination with Figure 2 、 Figures 5-7It can be seen that the bottom of the feeding basket channel 502 is provided with a mouth opening assembly 12 for assisting the opening of the packaging bag, and the mouth opening assembly 12 mainly comprises a guide sliding seat 121, a permanent magnet 122 and a mouth opening frame 123. Two guide round rods are fixedly connected to the bottom of the feeding basket channel 502, and the outer sides of the guide round rods are symmetrically movably provided with the guide sliding seats 121 located on both sides of the bottom of the feeding basket channel 502. The end portions of the guide round rods are threadedly connected with nuts, and springs are arranged between the nuts and the guide sliding seats 121. The guide sliding seats 121 are always pressed against the outer sides of the bottom of the feeding basket channel 502 under the action of the spring elastic force. The bottom of each guide sliding seat 121 is fixedly connected with the mouth opening frame 123, and the bottom of the mouth opening frame 123 is provided with an inclined angle to facilitate the insertion into the packaging bag. Figure 6 As can be seen from the drawings, the number of guide sliding seats 121 is two, and the permanent magnets 122 with opposite magnetic surfaces are fixedly installed on the two guide sliding seats 121. The magnetic repulsion between the two permanent magnets 122. In this embodiment, the material of the material blocking body 9 is preferably a magnetic material, such as copper, silicon steel or other metal materials. When the two permanent magnets 122 directly face each other, the magnetic repulsion between them will cause the two guide sliding seats 121 to move away from each other and compress the corresponding springs. Similarly, when the material blocking body 9 is placed between the two permanent magnets 122, the magnetic shielding effect of the material blocking body 9 will reduce the magnetic repulsion strength between the two permanent magnets 122, and the spring elastic force will push the guide sliding seats 121 to be attached to the outer sides of the bottom of the feeding basket channel 502, and the distance between the two mouth opening frames 123 is the shortest.

[0038] On this basis, combined with Figures 6-8 As can be seen, one guide sliding seat 121 is fixedly connected with a detection assembly 11 through a support, and the detection assembly 11 is located on one side of the tea storage hopper in the feeding basket channel 502. The detection assembly 11 mainly comprises a detection disc 110 fixedly installed with the support, and a detection sliding block 111 vertically guided by a rod is movably installed on the surface of the detection disc 110. A spring is fixedly connected between the detection sliding block 111 and the detection disc 110 and located on the outer side of the rod. Under normal circumstances, the detection sliding block 111 pushed by the spring always has a tendency to move upward to the top limit, that is, the state shown in Figure 7 The end portion of the detection sliding block 111 is fixedly installed with a locking push rod 113 arranged towards the direction of the tea storage hopper. Correspondingly, combined with Figure 8 As can be seen, a limiting step 901 is formed in the side middle portion of the material blocking body 9. When the locking push rod 113 is inserted into the side portion of the material blocking body 9, the upward material blocking body 9 will pass through the locking push rod 113 during the process of the limiting step 901, and the locking push rod 113 will limit the upward movement of the limiting step 901 by blocking the limiting step 901.

[0039] Further, from Figure 2 , Figure 5 and Figure 8It can be seen that the top of the material blocking body 9 has a position detection block 10 installed through bolt fastening, and corresponding to this, the side of the feeding basket channel 502 is fixedly installed with an initial switch 1001 and a to-position switch 1002 located above the initial switch 1001. When the position detection block 10 moves to the position of the initial switch 1001, at this time the bottom of the material blocking body 9 is between the permanent magnets 122, for realizing the magnetic shielding between the two permanent magnets 122. Similarly, when the material blocking body 9 drives the position detection block 10 to move upwards and moves to the to-position switch 1002, the material blocking body 9 moves upwards to the top and separates from the conveying pipeline in the feeding basket channel 502, so as to realize the communication of the conveying pipeline.

[0040] The working principle of the second embodiment is as follows:

[0041] In the initial state, the feeding cylinder 501 makes the feeding basket channel 502 move upwards and be retracted, and the adjusting motor 8 drives the material blocking body 9 to drive the position detection block 10 to move to the position of the initial switch 1001. At this time, the bottom of the material blocking body 9 is between the guide sliding seats 121 and blocks the permanent magnets 122. According to the magnetic shielding of the material blocking body 9 to the permanent magnets 122, the magnetic repulsion strength between the two is weakened, the guide sliding seats 121 are pushed by the springs to drive the opening frames 123 to approach each other, at this time the guide sliding seats 121 make the detection disc 110 relatively far away from the tea storage pot through the support; at the same time, the material blocking body 9 also blocks the conveying pipeline in the feeding basket channel 502 at this time.

[0042] The tea in the hopper 2 is conveyed into the weighing box 4 through the vibrating conveying channel 3 for weighing. Since the feeding basket channel 502 is in the upward state at this time, the feeding basket channel 502 is relatively close to the weighing box 4, and the tea weighed through the weighing box 4 can be directly poured into the tea storage pot of the feeding basket channel 502.

[0043] Afterwards, the bag supporting assembly 7 takes out the packaging bag in the storage bag assembly 6 and opens it below the feeding basket 502 in the way as described in the first embodiment. Then, when the feeding cylinder 501 pushes the feeding basket 502 downwards, the opening frame 123 will enter the packaging bag first, and when the feeding cylinder 501 pushes the feeding basket 502 to the limit, the opening frame 123 will also enter the bag and be located at one side of the pneumatic suction cup 706 on the passive clamping frame 707 / active frame 705. Then, the adjusting motor 8 drives the blocking body 9 to move upwards through the screw, and when the blocking body 9 moves upwards, the bottom of the blocking body 9 will be away from the permanent magnet 122, so that the blocking body 9 no longer blocks the permanent magnet 122. Then, the repulsive force between the permanent magnets 122 causes the guide sliding seat 121 to drive the opening frame 123 to move away. During this process, when the opening frame 123 pushes the active frame 705 / passive clamping frame 707 to move outwards, the opening frame 123 inside the packaging bag and the active frame 705 / passive clamping frame 707 outside the packaging bag form a clamping on the packaging bag, which further ensures the positioning and fastening strength of the packaging bag. During this process, even if the opening frame 123 pushes the active frame 705 / passive clamping frame 707 to move away, since the active frame 705 / passive clamping frame 707 are provided with springs, the active frame 705 / passive clamping frame 707 can move away within a certain range.

[0044] Moreover, since the opening of the packaging bag is relatively fixed, when the opening frame 123 fully opens the packaging bag, the opening frame 123 will be in contact with the active frame 705 / passive clamping frame 707, and the active frame 705 / passive clamping frame 707 will be in contact with the blocking body 9. Therefore, the active frame 705 / passive clamping frame 707 will be in contact with the blocking body 9, and the active frame 705 / passive clamping frame 707 will be in contact with the blocking body 9. Figure 6 As can be seen, when the guide sliding seat 121 drives the opening frame 123 to move away to both sides, the transmission of the bracket will cause the detection disc 110 to drive the detection sliding block 111 to move towards the feeding basket 502. It should be noted that after the opening frame 123 fully opens the packaging bag, the bracket will drive the detection disc 110 to move towards the feeding basket 502, but there will still be a gap between the locking push rod 113 on the detection sliding block 111 and the blocking body 9. In this way, when the blocking body 9 moves upwards until the position detection block 10 contacts the position switch 1002, the movement of the blocking body 9 will not be blocked. At this time, it indicates that the opening frame 123 has normally opened the packaging bag. Therefore, when the position detection block 10 moves to the position switch 1002, the blocking body 9 unblocks the conveying channel in the feeding basket 502, and the tea leaves stored in the feeding basket 502 will enter the packaging bag through the conveying channel, realizing the input of the tea leaves.

[0045] Similarly, if the mouth frame 123 is not normally inserted into the packaging bag or the bag opening assembly 7 does not normally take the packaging bag, it will cause the material blocking body 9 to move upwards and away from the permanent magnet 122. In the process, the permanent magnet 122 is repelled by the magnetic force, causing the mouth frame 123 to further move away, and the distance is greater than the distance required to open the packaging bag. At the same time, the guide slide 121 is guided by the bracket to make the detection disc 110 close to the feeding basket channel 502, and the locking push rod 113 is located on the side of the material blocking body 9 and above the limiting step 901. After that, when the adjusting motor 8 drives the material blocking body 9 to move upwards, the upward movement of the limiting step 901 is limited by the locking push rod 113 after the limiting step 901 moves to the position of the locking push rod 113, so that the material blocking body 9 cannot continue to move upwards. At this time, the rotating resistance of the adjusting motor 8 increases, and the torque limiter is cut off, and the material blocking body 9 is still inserted into the conveying channel of the feeding basket channel 502, so as to ensure that the tea in the feeding basket channel 502 will not be output when the packaging bag is not normally opened. In this way, it avoids the problem that tea is scattered when the packaging bag is not normally opened and tea is output. In actual application, whether the detection torque limiter works can be used as an alarm signal, so that when the torque limiter works, the control system can input the signal to the bell and other devices, so as to play the role of alarm.

[0046] Example three is further improved on the basis of example two, combined with Figures 5-8 As can be seen, the side of the material blocking body 9 is provided with a through groove 900, and when the through groove 900 moves downward and is located between the permanent magnets 122, the magnetic surfaces between the permanent magnets 122 will be opposite. Moreover, the detection disc 110 is fixedly installed with a disengagement switch 112 at the lower limit position of the detection slide 111, and when the detection slide 111 contacts the disengagement switch 112, the disengagement switch 112 will input an electrical signal to the control system. At the same time, the side of the material blocking body 9 and above the limiting step 901 is fixedly installed with a one-way limiting tooth row 902, and the single tooth side surface of the one-way limiting tooth row 902 is in the shape of a right triangle.

[0047] In the actual application process of this embodiment three, the process of tea input into the packaging bag is consistent with that described in embodiment two, which will not be repeated here.

[0048] When the material blocking body 9 drives the position detection block 10 to move to the in-place switch 1002, the in-place switch 1002 sends a signal to the control system, the control system stops the adjusting motor 8 from rotating and reverses the rotation after a certain period of time. During this period of time, the tea in the tea storage hopper of the feeding basket 502 passes through the conveying channel and enters the packaging bag. When the set time is reached, the adjusting motor 8 reverses the rotation by driving the lead screw, thereby pushing the material blocking body 9 downward, and after the material blocking body 9 passes through the permanent magnets 122 at the bottom, the permanent magnets 122 are still opposite to each other through the through slot 900. At this time, the packaging bag is clamped and fastened between the inner and outer clamping of the permanent magnets 122 and the movable frame 705 / the passive clamping frame 707, and the attraction force of the pneumatic suction cup 706 on the outside of the packaging bag, so that the packaging bag is limited by a certain strength of clamping force. The clamping force can be adjusted by adjusting the magnetic force between the permanent magnets 122 or other ways.

[0049] After the material blocking body 9 descends and enters the inside of the packaging bag, the material blocking body 9 presses the tea inside the packaging bag downward, thereby making the tea press the bottom of the packaging bag. Since the bottom of the packaging bag is currently connected by heat sealing, if the connection strength is not enough, the bottom of the packaging bag will loosen during the descending process of the material blocking body 9, the tea and the bottom of the material blocking body 9 will directly extend from the bottom of the packaging bag, and the position detection block 10 will eventually reach the top of the tea storage hopper in the feeding basket 502, thereby limiting the material blocking body 9 from continuing to descend. The material blocking body 9 causes the rotating strength of the lead screw to increase, the torque limiter starts, and the control system alarms. This way can judge the heat sealing strength of the bottom of the packaging bag, and avoid the problem that the packaging bag is blown after the packaging is completed, and the subsequent external force or the stacking and extrusion between the packaging bags cause the packaging bag to be blown.

[0050] Similarly, if the bottom heat sealing strength of the packaging bag is sufficient, under the pushing of the material blocking body 9, the packaging bag will be separated from the clamping of the opening frame 123 and the movable frame 705 / passive clamping frame 707, so as to send the packaged tea leaves to the next sealing process. At the same time, when the packaging bag is separated from the opening frame 123, the packaging bag will no longer limit the movement of the opening frame 123. Then, under the magnetic repulsion of the permanent magnet 122, the guide sliding seat 121 further moves relatively, and the detection disc 110 drives the detection slider 111 to move towards the feeding basket channel 502. When the locking push rod 113 abuts against the one-way limiting tooth row 902, since the material blocking body 9 is in a downward trend relative to the feeding basket channel 502 at this time, the right angle surface on the one-way limiting tooth row 902 will push the locking push rod 113 to move downward. The locking push rod 113 drives the detection slider 111 to move downward and compresses the spring until the detection slider 111 contacts the disconnecting switch 112. After the disconnecting switch 112 receives the signal, it indicates that the packaging bag is normal and separated from the opening frame 123. Therefore, the control system adjusts the motor 8 to make the material blocking body 9 move upward. When the material blocking body 9 drives the one-way limiting tooth row 902 to move upward, the locking push rod 113 cannot block the upward movement of the one-way limiting tooth row 902. Therefore, the upward material blocking body 9 drives the position detection block 10 to move to the initial switch 1001 position. The feeding cylinder 501 lifts the feeding basket channel 502. The entire device enters the initial state and waits for the next tea packaging work.

[0051] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be apparent to those of ordinary skill in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Accordingly, the application is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fully automatic packaging machine for tea processing, characterized in that, include: The bracket (1) has a hopper (2) for putting tea leaves on the top, a vibrating conveyor channel (3) is set below the hopper (2), and a weighing box (4) is fixedly installed on the inside of the bracket (1). A bag-supporting assembly (7) is installed at the bottom of the bracket (1) for pulling the bag open from the outside; The feeding assembly (5) is used to convey the weighed tea leaves from the weighing box (4) to the packaging bag. The feeding assembly (5) includes a feeding cylinder (501) fixed on the bracket (1), and a feeding basket channel (502) is fixedly installed at the output end of the feeding cylinder (501). An adjusting motor (8) is fixedly installed on the top of the feeding basket (502), and the output shaft of the adjusting motor (8) is threadedly connected to the baffle body (9) through a screw. The baffle body (9) is fitted inside the feeding basket (502). The adjusting motor (8) uses the lead screw to drive the baffle (9) to move up and down along the inner side of the feeding basket (502), thereby realizing the on / off control of the conveying channel between the feeding basket (502) and the packaging bag.

2. The fully automatic packaging machine for tea processing according to claim 1, characterized in that, The bag support assembly (7) includes a support slider (701) movably mounted on the bottom of the bracket (1). The support slider (701) is driven by a servo linear drive assembly (702). A servo flip motor (703) is fixedly mounted at the end of the support slider (701), and a flip frame (704) is fixedly mounted at the output end of the servo flip motor (703). A movable frame (705) pushed by a spring is movably mounted on the top of the flip frame (704), and a pneumatic suction cup (706) connected to a vacuum pump is provided on the movable frame (705). A passive clamping frame (707) pushed by a spring is movably mounted on the side of the bracket (1), and a pneumatic suction cup (706) is fixedly mounted on the passive clamping frame (707).

3. The fully automatic packaging machine for tea processing according to claim 2, characterized in that, The bottom of the bracket (1) is fixedly installed with a material feeding box (601) located on one side of the bag support assembly (7), and one end of the material feeding box (601) is provided with an opening, and a rectangular protrusion is provided on the opening. The packaging bag is placed in the material feeding box (601), and a top material cylinder (602) is fixedly installed on the end of the material feeding box (601) away from the opening.

4. The fully automatic packaging machine for tea processing according to claim 1, characterized in that, The feeding hopper (502) includes a rectangular conveying pipe at the bottom and a tea storage hopper in the middle.

5. The fully automatic packaging machine for tea processing according to claim 3, characterized in that, The bottom of the feeding basket (502) is provided with an opening assembly (12) to assist in opening the packaging bag. The opening assembly (12) mainly includes a guide slide (121), a permanent magnet (122) and an opening frame (123). Two guide rods are fixedly connected to the bottom of the feeding basket (502), and guide slides (121) located on both sides of the bottom of the feeding basket (502) are symmetrically and movably installed on the outer side of the guide rods. Nuts are threaded to the ends of the guide rods, and springs are provided between the nuts and the guide slides (121). The opening frame (123) is fixedly connected to the bottom of the guide slides (121). Permanent magnets (122) with opposite magnetic surfaces are fixedly installed on both guide slides (121), and the two permanent magnets (122) repel each other magnetically.

6. The fully automatic packaging machine for tea processing according to claim 5, characterized in that, A top of a guide slide (121) has a detection assembly (11) fixedly connected by a bracket. The detection assembly (11) mainly includes a detection disk (110) fixedly installed with the bracket, and a detection slider (111) is movably installed on the surface of the detection disk (110). A spring is fixedly connected between the detection slider (111) and the detection disk (110). A locking push rod (113) is fixedly installed at the end of the detection slider (111). A limit step (901) is opened in the middle of one side of the baffle (9). When the locking push rod (113) reaches the limit step (901), it can restrict the baffle (9) from moving upward.

7. The fully automatic packaging machine for tea processing according to claim 5, characterized in that, The baffle (9) is made of magnetic blocking material.

8. The fully automatic packaging machine for tea processing according to claim 5, characterized in that, A position detection block (10) is fastened to the top of the material stop (9), and an initial switch (1001) and a position switch (1002) located above the initial switch (1001) are fixedly installed on the side of the feeding basket (502).

9. The fully automatic packaging machine for tea processing according to claim 8, characterized in that, A through groove (900) is provided on the side of the baffle (9), a release switch (112) is fixedly installed on the side of the detection plate (110), and a one-way limit tooth row (902) is fixedly installed on the side of the baffle (9) and above the limit step (901).

10. The fully automatic packaging machine for tea processing according to claim 8, characterized in that, The single tooth side of the unidirectional limiting tooth row (902) is a right-angled triangle.

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