A non-contact magnetic transmission device for counting and packaging machines

Abstract

The present invention discloses a non-contact magnetic transmission device for a counting and packaging machine, comprising a pair of forward guide rails, a plurality of material collection boxes, and a transmission mechanism. The material collection boxes are slidably arranged between the forward guide rails, and force-bearing shafts are respectively provided on both sides of the material collection box. A plurality of strong magnetic blocks are arranged at intervals along the transmission direction on the transmission mechanism, and the top surfaces of the strong magnetic blocks are lower than the bottom surfaces of the force-bearing shafts so that a magnetic field gap is formed between the strong magnetic blocks and the force-bearing shafts. The plurality of strong magnetic blocks are driven forward along the forward guide rails by the transmission mechanism, and a magnetic attraction force is generated between the strong magnetic blocks and the force-bearing shafts when the strong magnetic blocks pass through the material collection boxes, so that the transmission mechanism pulls the material collection boxes to slide along the forward guide rails through magnetic force. The present invention utilizes the magnetic force of the magnetic field to pull the material collection box contactlessly, which can effectively and directly eliminate the collision noise between the strong magnetic blocks and the force-bearing steel sleeves.

Description

Technical Field

[0001] The present invention relates to the technical field of counting and packaging equipment, in particular to a non-contact magnetic transmission device of a counting and packaging machine. Background Art

[0002] Existing building block counting and packaging lines feature numerous independent workstations, where different building block components are stored, transported, sorted, and filled. Each component is then collected in a collection box and sent to the packaging machine for packaging. The collection boxes are spaced out at intervals between workstations along the line. Driven by a chain, each box is sequentially transported to the filling port of each workstation with each tick, collecting the materials from all stations. In this structure, the collection boxes are fixed to the chain, and their movement is limited by the chain's rhythm, impacting the work cycle. Therefore, the time spent transporting and counting each item determines the collection box's transfer cycle. All collection boxes must wait in place. Only when all items at each station have been counted can the conveyor chain advance one station. This can significantly impact the overall collection box delivery rhythm and packaging speed of the entire line, especially if the transfer or counting of a particular item is hindered.

[0003] Therefore, freeing the material collection box from the transmission chain to form an independent conveying device can greatly solve the problem of slowing down the delivery rhythm of the entire assembly line due to accidental obstacles. For example, the Chinese utility model patent for a material conveying device and counting and packaging equipment with the announcement number CN217416274U discloses that the material collection box is provided with a sleeve that can magnetically contact and cooperate with the magnet on the chain, thereby dragging the material collection box to each station to collect materials. In terms of the dragging method of the material collection box, this patent changes the original method of fixing the material collection box on the chain for dragging to a scheme in which the material collection box is freely dragged on the conveying track by the magnet on the chain. This change allows the material collection and transportation process of the material collection box at each station to get rid of the factor that all material collection boxes stop transporting due to filling jams at certain stations, thereby increasing the filling rate by more than 15%. However, the magnets and sleeves of this technical solution are in contact with each other. Since there are many magnets on the chain and many collection boxes, each magnet will produce a collision noise when it interacts with each sleeve. The noise is very loud, and the noise level in on-site detection has reached over 90 decibels. This seriously affects the practicality and promotion of the solution. In addition, the sleeve of the storage hopper and the magnet are in magnetic contact, which causes the sleeve and the magnet to be firmly attached together, making the sleeve unable to move. If there is an error in the guide rail installation, the steel sleeve and the magnet cannot be easily corrected due to the tight adhesion, which can easily cause the collection box to become stuck. Summary of the Invention

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a non-contact magnetic transmission device for a counting and packaging machine, which uses the magnetic force of the magnetic field to pull the collection box without contact, can effectively and directly eliminate the collision noise between the strong magnetic block and the stressed steel sleeve, and allows the collection box to be corrected laterally, making the transmission of the collection box more stable.

[0005] To achieve the above-mentioned purpose, the present invention discloses a non-contact magnetic transmission device of a counting and packaging machine, comprising a pair of forward guide rails, a plurality of material collection boxes, and a transmission mechanism, wherein the material collection boxes are slidably arranged between the forward guide rails, and force-bearing shafts are respectively provided on both sides of the material collection box. A plurality of strong magnetic blocks are arranged at intervals along the transmission direction on the transmission mechanism, and a magnetic field gap is formed between the strong magnetic blocks and the force-bearing shafts. The plurality of strong magnetic blocks are driven to move forward along the forward guide rails by the transmission mechanism, and a magnetic attraction force is generated between the strong magnetic blocks and the force-bearing shafts when the strong magnetic blocks pass through the material collection boxes, so that the transmission mechanism pulls the material collection boxes to slide along the forward guide rails by magnetic force;

[0006] The inner side surface of the upward forward guide rail is provided with a first non-magnetic isolation layer, and the inner side surface of the downward forward guide rail is provided with a second non-magnetic isolation layer, so that the first non-magnetic isolation layer and the second non-magnetic isolation layer respectively cover the conveying mechanism;

[0007] The plurality of stop mechanisms are respectively arranged on the forward guide rail at intervals along the axial direction. When the stop mechanisms are activated, they contact the material collecting box and apply a stopping force to the material collecting box, so that the strong magnetic block is separated from the magnetic attraction between the force-bearing shafts, so that the stop mechanisms keep the material collecting box at the current position.

[0008] The upward forward guide rail is rotatably provided with a plurality of retaining tongues along the conveying direction of the material collecting box, and the side walls of the retaining tongues are in contact with the force-bearing shaft of the material collecting box.

[0009] Preferably, a slot is provided in the middle of the second non-magnetic isolation layer, so that when the conveying mechanism returns, the strong magnetic block slides along the slot and supports the outer wall of the conveying mechanism through the two inner walls of the slot.

[0010] Preferably, a stress-bearing steel sleeve is sleeved on the stress-bearing shaft, the inner diameter of the stress-bearing steel sleeve is larger than the outer diameter of the stress-bearing shaft, and a rotatable roller is provided at the end of the stress-bearing shaft, and the roller is in rolling engagement with the forward guide rail.

[0011] Preferably, the distance between the strong magnetic block and the stressed steel sleeve is less than 5 mm, and the distance between any adjacent strong magnetic blocks is equal to the distance between any adjacent collection boxes. The length of the strong magnetic block is 15 mm-30 mm, the width is 15 mm-30 mm, and the height is 5 mm-15 mm. The magnetic field strength of the strong magnetic block is 1328 H-2800 H.

[0012] Preferably, a limiting slide is provided above the downward forward guide rail, and the bottom surface of the limiting slide is in conflict with the upper surface of the roller, so as to limit the upward movement of the roller of the collecting box.

[0013] Preferably, a control system is further included, an identification module is provided at the bottom of the aggregate box, a number of mounting plates are respectively provided on the forward guide rail corresponding to the stop mechanism, a reading module is respectively provided on the several mounting plates, and the reading modules are respectively electrically connected to the control system, and the reading module is used to read the information of the identification module so that the control system can obtain the position of the aggregate box, the type information of the required building blocks and the loading amount, and the control system then controls the stop mechanism to perform the stopping action, and when the aggregate box completes material collection, the control system then controls the stop mechanism to release the stopping action.

[0014] Preferably, the conveying mechanism includes a forward chain, and the forward chain runs in an upward and downward cycle along the upward forward guide rail and the downward forward guide rail.

[0015] Preferably, the conveying mechanism includes an ascending chain and a descending chain that are driven independently, the ascending chain is arranged on the inner side of the ascending forward guide rail, and the descending chain is arranged on the inner side of the descending forward guide rail, and the top surface of the strong magnetic block is lower than the bottom surface of the force axis.

[0016] Preferably, the upward chain and the downward chain have a first track-changing mechanism and a second track-changing mechanism at the head and tail ends respectively, the first track-changing mechanism includes a pair of turntables, and the turntables are rotatably arranged at the corners of the forward guide rail. A pair of shift rods are symmetrically arranged on the outer wall of the turntable, and a linkage shaft is fixedly connected between the turntables, and the turntables are driven to rotate by a rotating motor. The overall structure of the second track-changing mechanism is the same as the overall structure of the first track-changing mechanism.

[0017] Preferably, a first box pushing mechanism is provided above the head end of the downward chain, and a second box pushing mechanism is provided below the end of the upward chain, the first box pushing mechanism includes a push plate and a push box driving assembly, the push plate is slidably arranged between the downward chains, and a pair of box pushing cylinders are vertically fixedly installed on the push plates, and the push plate is driven by the push box driving assembly to slide in the direction of the first track changing mechanism, and at the same time, the telescopic end of the push box cylinder is extended to push the collection box on the downward front guide rail into the corner of the front guide rail, so that when the turntable rotates, the collection box is pushed from the downward front guide rail to the downward front guide rail through the lever, and the overall structure of the second box pushing mechanism is the same as that of the first box pushing mechanism.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The present invention structurally separates the strong magnetic block and the stressed steel sleeve by a certain gap, and during the operation of the strong magnetic block, the magnetic force of the magnetic field is used to pull the material collection box without contact. Compared with the existing contact-type dragging structure, it can effectively and directly eliminate the collision noise between the strong magnetic block and the stressed steel sleeve. (2) And because the material collection box and the strong magnetic block are floating and stressed, the material collection box can be easily corrected laterally, avoiding the problem of jamming caused by the installation error of the forward guide rail during the movement. (3) By adding the first non-magnetic isolation layer and the design of the limiting slide, it is ensured that the material collection box always maintains the necessary distance from the strong magnetic block during the movement of the guide rail, avoiding the magnetic attraction contact between the stressed steel sleeve and the strong magnetic block. (4) In the present invention, the material collection box is stopped by a stop tongue in conjunction with a stop mechanism, and the stop tongue can prevent the material collection box from shaking due to the drag of the magnetic force after it is stopped. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a side view of the overall structure of the present invention;

[0022] Figure 3 To show Figure 2 Schematic diagram of the structure of part A in FIG;

[0023] Figure 4 To show Figure 2 Schematic diagram of the structure of part B;

[0024] Figure 5 This is the main view of the overall structure of the aggregate box;

[0025] Figure 6 To show Figure 1 Schematic diagram of the C part structure. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following Figures 1-6 The present invention is further described in detail with reference to the accompanying drawings.

[0027] Example 1:

[0028] Reference Figure 1 As shown, a non-contact magnetic transmission device of a counting and packaging machine includes a pair of forward guide rails 1, a plurality of collecting boxes 2, a transmission mechanism 3, a stop mechanism 6, and a control system.

[0029] The forward guide rail 1 consists of an upward guide rail 11, a downward guide rail 12 and an arc-shaped conversion guide rail (not shown in the figure) connecting the ends of the upper and downward guide rails 11 and 12. The collection box 2 is arranged between the forward guide rails 1 and can slide along the forward guide rail 1. The collection box 2 in the upward guide rail 11 and the downward guide rail 12 can circulate up and down through the arc-shaped conversion guide rail.

[0030] Reference Figure 2-Figure 4 As shown, a force-bearing shaft 21 is provided on both sides of the collecting box 2, and a plurality of strong magnetic blocks 5 are provided at intervals along the conveying direction on the conveying mechanism 3. The length of the strong magnetic block in the present invention is 15mm-30mm, the width is 15mm-30mm, and the height is 5mm-15mm. The magnetic field strength is 1328H-2800H. The spacing between the force-bearing shaft 21 and the strong magnetic block 5 is less than 5mm, so that a magnetic field gap is formed between the strong magnetic block 5 and the force-bearing shaft 21, and the conveying mechanism 3 drives the strong magnetic block 5 to move. Several strong magnetic blocks 5 move forward along the forward guide rail 1. When the strong magnetic blocks 5 pass through the collection box 2, a magnetic attraction force is generated between the strong magnetic blocks 5 and the force-bearing shaft 21, so that the conveying mechanism 3 pulls the collection box 2 to slide along the forward guide rail 1 through the magnetic force. Several stop mechanisms 6 are arranged on the forward guide rail 1 at intervals along the axial direction. When the stop mechanisms 6 are started, they contact the collection box 2 and apply a stopping force to the collection box 2, so that the strong magnetic blocks 5 are separated from the magnetic attraction between the force-bearing shafts 21, so that the stop mechanisms 6 keep the collection box 2 in the current position.

[0031] The distance between any adjacent strong magnetic blocks 5 is equal to the distance between any adjacent collecting boxes 2, thereby greatly reducing the number of strong magnetic blocks 5 on the conveying mechanism, alleviating the load of the chain, and reducing production costs.

[0032] Combine Figure 1 、 Figure 5As shown, in this embodiment, the conveying mechanism 3 includes a forward chain, which circulates up and down along the upward forward guide rail 1 and the downward forward guide rail 1, and the strong magnetic blocks 5 are fixedly installed on the chains respectively. The upper part of the collection box 2 is fixedly provided with a mounting frame 23, and the force shaft 21 is provided on the mounting frame 23. The force shaft 21 is provided with a force steel sleeve 4, and the end of the force shaft 21 is provided with a rotatable roller 22. In this embodiment, the roller 22 adopts a bearing, and the roller 22 rolls with the forward guide rail 1. In this embodiment, the force shaft 21 is a non-magnetic material, such as 304 stainless steel, aluminum, copper, etc., and the force steel sleeve 4 is a material affected by magnetic force, so that when the strong magnetic block 5 on the forward chain passes through the force steel sleeve 4, the force steel sleeve 4 generates magnetic attraction with the strong magnetic block 5 under the action of the magnetic field, so that the collection box 2 slides along the forward guide rail 1 driven by the chain.

[0033] In the first embodiment of the present invention, the upward guide rail 11 and the downward guide rail 12 are the same chain. Although there is redundant space between the strong magnetic block 5 of the forward chain and the stressed steel sleeve 4, due to the long transmission distance of the forward chain, the tensioning force of the forward chain is relatively loose, so that the strong magnetic block 5 on the forward chain is easily magnetically attracted to the stressed steel sleeve 4 of the collection box 2 under the magnetic attraction force of the magnetic field, or the upward forward chain and the downward forward chain may sag, so that the distance between the strong magnetic block 5 of the upward forward chain and the stressed steel sleeve 4 increases accordingly, while the distance between the strong magnetic block 5 of the downward forward chain and the stressed steel sleeve 4 decreases accordingly, resulting in the magnetic attraction between the strong magnetic block 5 of the upward forward chain and the stressed steel sleeve 4 weakening, affecting the dragging of the chain, and the strong magnetic block 5 of the downward forward chain is easy to come into contact with the stressed steel sleeve 4.

[0034] Reference Figure 2 、 Figure 3 As shown, in this embodiment, a conveying guide rail 7 is provided below the inner side surface of the forward guide rail 1, and the forward chain of the conveying mechanism 3 slides along the conveying guide rail 7 to support and guide the forward chain equipped with the strong magnetic block 5, thereby preventing the upward forward chain from sagging, and a first non-magnetic isolation layer 8 is provided on the inner side surface of the forward guide rail 1. The cross-section of the first non-magnetic isolation layer 8 is an inverted "L" shape, so that the first non-magnetic isolation layer 8 covers the conveying mechanism 3 on the conveying guide rail 7, so that the first non-magnetic isolation layer 8 and the strong magnetic block 5 on the forward chain do not generate magnetic attraction. On the one hand, it can prevent debris from being adsorbed onto the strong magnetic block 5 and affecting the operation of the strong magnetic block 5. On the other hand, it ensures that when a magnetic attraction force is generated between the stressed steel sleeve 4 and the strong magnetic block 5, the stressed steel sleeve 4 will not be adsorbed on the strong magnetic block 5.

[0035] Reference Figure 2 、 Figure 4As shown, in this embodiment, a second non-magnetic isolation layer 9 is respectively provided above the inner side surface of the downward guide rail 12, and a slot is provided in the middle of the second non-magnetic isolation layer 9, so that when the collection box 2 on the upward guide rail 11 enters the downward guide rail 12 through the arc conversion guide rail, the forward chain on the conveying guide rail 7 enters the second non-magnetic isolation layer 9 at the same time, so that the strong magnetic block 5 on the forward chain slides along the slot of the second non-magnetic isolation layer 9. In this embodiment, if the second non-magnetic isolation layer 9 is closed, the magnetic field strength between the strong magnetic block 5 on the downward forward chain and the stressed steel sleeve 4 will be inconsistent. The strong magnetic block 5 on the forward chain is exposed through the slot, thereby ensuring that the magnetic field strength between the strong magnetic block 5 and the stressed steel sleeve 4 is sufficient, and the two inner walls of the slot respectively support the outer wall of the conveying mechanism 3, that is, the forward chain equipped with the strong magnetic block 5 is supported and guided, thereby limiting the downward sagging of the forward chain, so that the strong magnetic block 5 on the forward chain can maintain a necessary distance from the stressed steel sleeve 4 of the aggregate box 2, ensuring that the strong magnetic block 5 always interacts with the stressed steel sleeve 4.

[0036] In this embodiment, the first non-magnetic isolation layer 8 and the second non-magnetic isolation layer 9 are made of 304 stainless steel to prevent strong magnetic blocks from being adsorbed on the first non-magnetic isolation layer 8 or the second non-magnetic isolation layer 9.

[0037] A limiting slide 13 is provided above the downward guide rail 12, and the bottom surface of the limiting slide 13 conflicts with the upper surface of the roller 22. If the roller 22 of the aggregate box 2 in the downward guide rail 12 is subjected to an external force or the guide rail installation error and moves upward, the limiting slide 13 is used to resist the upper surface of the roller, so that the limiting slide 13 limits the height of the roller 22 moving upward, and prevents the stressed steel sleeve 4 from being too close to the strong magnetic block 5 on the forward chain when the roller 22 moves upward, causing the stressed steel sleeve 4 to be magnetically attracted to the strong magnetic block 5. Therefore, the limiting slide 13 can better limit the upward movement of the roller 22 of the aggregate box 2, thereby ensuring that the aggregate box 2 always maintains a necessary distance from the strong magnetic block 5 during the movement of the downward guide rail 12.

[0038] Compared to existing technologies, such as the Chinese utility model patent for a material conveying device and counting and packaging equipment with publication number CN217416274U, although the above-mentioned existing technology can effectively capture, drag, detach, and recapture the collection box, the magnetic contact between the force-applying component and the force-bearing component of the storage hopper causes collision, thereby generating excessive noise. In response to the above-mentioned existing technology, the present invention improves the force-applying component and the force-bearing component of the storage hopper to achieve contactless capture and dragging, that is, utilizing the magnetic force of the magnetic field to pull the collection box contactlessly, thereby effectively and directly eliminating the collision noise caused by the strong magnetic block and the force-bearing steel sleeve.

[0039] In order to ensure the motion stability between the strong magnetic block 5 and the stressed steel sleeve 4 in the present invention, the present invention intends to find the most suitable spacing between the strong magnetic block and the stressed steel sleeve by testing strong magnetic blocks 5 of different sizes, different magnetic field strengths, different dragging speeds and different suspension distance environments.

[0040] The specific detailed parameters of the magnetic contact method used in the prior art can be referred to Table 1.

[0041] Table 1:

[0042]

[0043] From the experimental data in Table 1, it can be seen that in the existing technology, the strong magnetic block is in direct contact with the force-bearing sleeve of the aggregate box. Although the dragging effect is good, the impact noise generated after the strong magnetic block and the force-bearing sleeve come into contact is too loud. The noise detected on site reaches more than 90 decibels, which seriously affects the practicality and promotion of the solution.

[0044] For specific detailed parameters of the magnetic contactless method of the present invention, please refer to Table 2 and Table 3.

[0045] Table 2:

[0046]

[0047] Reference Figure 3 、 Figure 4 As shown, Table 2 is the experimental data of the strong magnetic block with a size of 20mm*20mm*10mm and a magnetic field strength of 2200H. It can be seen from the experimental data in Table 2 that when the suspension distance between the strong magnetic block 5 and the stressed steel sleeve 4 is 5mm, although the strong magnetic block 5 and the stressed steel sleeve 4 do not produce collision noise, the capture force is insufficient and it is very easy to fall off, and the strong magnetic block 5 cannot drag the aggregate box 2 when facing heavier objects; when the suspension distance is 2mm, the same strong magnetic block 5 and the stressed steel sleeve 4 do not produce collision noise, and the capture and dragging force are significantly enhanced than the 5mm spacing, but there are still problems for heavier objects; and when the suspension distance is 1mm, there is still no noise of collision between the strong magnetic block 5 and the stressed steel sleeve 4, and the capture and dragging force are significantly enhanced than the 2mm gap, but there are still problems in the face of objects of larger weight.

[0048] Table 3:

[0049]

[0050] Table 3 shows the experimental data for a 20mm*30mm*10mm strong magnetic block with a magnetic field strength of 2800H. As can be seen from the experimental data in Table 3, when the suspension distance between the strong magnetic block 5 and the stressed steel sleeve 4 is 5mm, no collision noise is generated. At the same time, the capture and drag force is significantly enhanced compared to the 20mm*20mm*10mm strong magnetic block 5, basically meeting the design requirements. When the suspension distance is 3mm, the capture and drag force is significantly enhanced compared to the 5mm gap, which fully meets the design requirements and can drag the aggregate box 2 even when handling heavier objects.

[0051] Table 4:

[0052]

[0053] Table 4 shows the experimental data of a strong magnetic block with a size of 20mm*40mm*10mm and a magnetic field strength of 2800H. It can be seen from the experimental data in Table 4 that when the suspension distance between the strong magnetic block 5 and the stressed steel sleeve 4 is 5mm, there is no noise of collision between the strong magnetic block 5 and the stressed steel sleeve 4. At the same time, the capture and dragging force is significantly enhanced than that of the strong magnetic block 5 with a size of 20mm*30mm*10mm. The aggregate box can be dragged even when facing heavier objects and at faster speeds, which basically meets the design requirements.

[0054] From the above, it can be seen that the present invention is aimed at environmental tests of strong magnetic blocks of different sizes and different magnetic field strengths and different spacings. It is preferred to use strong magnetic blocks with specifications of 20*30*10 and a magnetic field strength of 2800H. The spacing between the strong magnetic block 5 and the stressed steel sleeve 4 is preferably 3mm, which can not only effectively reduce the noise generated during the work process, but also better capture and drag the aggregate box 2 to run. At the same time, in the face of different dragging speeds, the strong magnetic block 5 on the forward chain can still effectively drag the aggregate box 2 to run, thereby being suitable for work scenarios with different production speeds, making the present invention more applicable and more efficient.

[0055] In addition, the outer diameter of the stressed steel sleeve 4 in the present invention is slightly smaller than the length of the strong magnetic block 5, thereby increasing the magnetic field area between the stressed steel sleeve 4 and the strong magnetic block 5. Even if the dragging speed is increased, due to the magnetic area, the time for the magnetic force to take effect is increased, which can improve the efficiency of capturing the collection box 2, thereby greatly improving the stability of the collection box transmission.

[0056] The inner diameter of the force-bearing steel sleeve 4 is larger than the outer diameter of the force-bearing shaft 21, and there is floating force between the force-bearing steel sleeve 4 and the strong magnetic block 5. When encountering guide rail installation errors, the collection box can easily make lateral corrections, avoiding the jamming problem caused by the installation error of the forward guide rail 1 during movement.

[0057] In the prior art, the sleeve of the storage hopper is in magnetic contact with the magnet, which causes the sleeve and the magnet to be firmly adsorbed together, thereby increasing the friction between the sleeve and the hanging shaft of the storage hopper, and causing the sleeve to be unable to move. Therefore, during the movement of the storage hopper, if there is an installation error of the guide rail, the steel sleeve and the magnet are tightly attracted and cannot be easily corrected, which can easily cause the collection box to become stuck. Compared with the prior art, the transmission of the present invention is more stable.

[0058] Reference Figure 1 、 Figure 5 As shown, the stop mechanism 6 includes a pair of positioning cylinders, which are respectively fixedly installed on the outer side surfaces of the forward guide rail 1. An identification module 24 is provided at the bottom of the aggregate box 2. In this embodiment, the identification module preferably adopts an IC card. Several mounting plates are respectively provided between the forward guide rails 1 and the corresponding stop mechanisms 6. A reading module is respectively provided on the mounting plates. In this embodiment, the reading module preferably adopts a contactless card reader. The information of the identification module 24 is read by the reading module. The information of the identification module 24 includes the type of required building blocks and the loading amount. The reading modules are electrically connected to the control system respectively. When the aggregate box 2 passes through the reading module, the control system controls the stop mechanism 6 to perform a stopping action, so that the telescopic end of the positioning cylinder abuts against the rollers 22 on both sides of the aggregate box 2 or the ends of the force-bearing shaft 21, so that it can perform a stop on the aggregate box 2. The stopping makes the material box 2 to be unloaded stop independently, and the identification module 24 on the material box 2 is read by the reading module to obtain the information of the material box 2, and the position of the material box 2 is fed back to the control system. The control system then controls the counting device at the specified position to release the specified building blocks into the material box 2 according to the type of building blocks required by the material box 2. At the same time, the counting device releases a specified number of building blocks according to the loading capacity required by the material box 2, and the strong magnetic block 5 continues to move forward driven by the forward chain. The stressed steel sleeve 4 rotates around the stressed axis 21 under the conveying action of the strong magnetic block 5, and is easily separated from the strong magnetic block 5 in the horizontal tangential direction (the force of the magnetic field in the tangential direction is much smaller than that in the normal direction, so the strong magnetic block 5 and the stressed steel sleeve 4 in the tangential direction can be easily separated).

[0059] When the aggregate box 2 completes material collection, the control system controls the stop mechanism 6 to reset, so that the stop mechanism releases the stopping action on the aggregate box 2. The strong magnetic block 5 running up with the forward chain generates magnetic attraction with the stressed steel sleeve 4, and drives the aggregate box 2 to the next counting unit again. When the aggregate box 2 leaves the counting unit, the identification module 24 under the aggregate box 2 leaves the reading module, and the stop mechanism 6 of the counting unit extends again, ready to welcome the arrival of the next aggregate box 2.

[0060] Reference Figure 1 、 Figure 6As shown, when the aggregate box 2 is in the stopping process, after the force-bearing steel sleeve 4 of the aggregate box 2 is separated from the strong magnetic block 5, the aggregate box 2 may shake due to the drag of the magnetic force. If the transmission speed is fast, it is easy to cause the aggregate box 2 to shake too much, causing the material in the aggregate box 2 to spill out.

[0061] In order to solve the above technical problems, the upward forward guide rail 1 in the present invention is rotatably provided with a plurality of stop tongues 10 along the conveying direction of the material collection box 2, and the side walls of the stop tongues 10 are in conflict with the force shaft 21 of the material collection box 2, and the upward guide rail 11 is respectively provided with a plurality of stop mounting brackets 101 corresponding to the stop mechanism 6, and the plurality of stop tongues 10 are rotatably provided on the stop mounting brackets 101, and a limiting rod 102 is fixedly provided on the upper part of the stop mounting bracket 101, wherein the lower part of one side wall of the stop tongue 10 is in conflict with the force shaft 21 of the material collection box 2, and the upper part of the other side wall is in conflict with the limiting rod 102. Under the limiting action of the limiting rod 102, the stop tongue 10 is tilted toward the stop mechanism 6 at a certain angle, and in the process of the material collection box 2 moving to the stop mechanism 6, the material collection box 2 At this time, the stop tongue 10 swings upward again under the push of the aggregate box 2 until the force-bearing shaft 21 of the aggregate box 2 disengages from the stop tongue 10, and the stop tongue 10 automatically resets under the action of its own weight, ready to greet the arrival of the next aggregate box.

[0062] Example 2:

[0063] The transmission mechanism of this embodiment differs from the transmission mechanism of the first embodiment in that:

[0064] The conveying mechanism includes an upward chain and a downward chain. The upward chain is arranged on the inner side of the upward guide rail 11, and the downward chain is arranged on the inner side of the downward guide rail 12. The conveying direction of the upward chain is opposite to the conveying direction of the downward chain. The top surface of the strong magnetic block 5 is lower than the bottom surface of the force shaft 21. When the strong magnetic block 5 on the upward chain / downward chain passes through the force steel sleeve 4, the force steel sleeve 4 generates a magnetic attraction force with the strong magnetic block 5 under the action of the magnetic field, so that the collection box 2 slides along the upward guide rail 11 / downward guide rail 12 driven by the upward chain / downward chain.

[0065] In this embodiment, a first non-magnetic isolation layer 8 is provided on the inner side of the upward guide rail 11, and a second non-magnetic isolation layer 9 is provided on the inner side of the downward guide rail 11. The first non-magnetic isolation layer 8 and the second non-magnetic isolation layer 9 respectively cover the upward chain and the downward chain of the conveying mechanism 3, wherein the cross-section of the first non-magnetic isolation layer 8 and the second non-magnetic isolation layer 9 is an inverted "L" shape. In this embodiment, the first non-magnetic isolation layer 8 and the second non-magnetic isolation layer 9 are made of 304 stainless steel. On the one hand, it can prevent debris from being adsorbed onto the strong magnetic block 5 of the upward chain and the downward chain, affecting the operation of the strong magnetic block 5. On the other hand, it ensures that when a magnetic attraction is generated between the stressed steel sleeve 4 and the strong magnetic block 5, the stressed steel sleeve will not be adsorbed on the strong magnetic block 5.

[0066] A first conversion mechanism and a second conversion mechanism are respectively rotatably arranged between the head and tail ends of the upward chain and the downward chain. The first conversion mechanism includes a pair of turntables, which are rotatably arranged at the center of the arc-shaped conversion guide rail. The outer wall of the turntable is symmetrically provided with shift rods, and the length between the shift rods is greater than the diameter of the arc-shaped conversion guide rail. A linkage shaft is fixedly connected between the turntables, and the turntable is driven to rotate by a rotating motor.

[0067] A first box-pushing mechanism is provided above the head end of the downward chain, and a second box-pushing mechanism is provided below the end of the upward chain. The first box-pushing mechanism includes a push plate and a box-pushing driving assembly. The push plate is slidingly provided between the second non-magnetic isolation layer, and a pair of box-pushing cylinders are vertically fixedly installed on the push plate. The box-pushing driving assembly includes a pair of first synchronous wheels, a second synchronous wheel, and a sliding driving device. The first synchronous wheel and the second synchronous wheel are respectively rotated and provided on the second non-magnetic isolation layer 9. A first synchronous belt is respectively tensioned between the first and second synchronous wheels, and both sides of the push plate are respectively connected to the first synchronous belt. The two wheels are fixedly connected, and a rotating shaft is fixedly arranged between the paired first synchronous wheels. The sliding drive device is fixedly installed between the downward chains. In this embodiment, the sliding drive device preferably adopts a motor, whose output shaft is fixedly installed with a driving wheel, and a driven wheel is fixedly installed on the rotating shaft. A second synchronous belt is tensioned between the driving wheel and the driven wheel. The first synchronous belt is driven by the sliding drive device to drive the push plate to slide in the direction of the first conversion mechanism. At the same time, the push box cylinder drives the telescopic end to extend downward, so that the telescopic end of the push box cylinder pushes the collecting box 2 on the downward guide rail 12 into the arc-shaped conversion guide rail.

[0068] When the turntable rotates clockwise, the arc-shaped conversion guide rail of the collection box 2 is pushed upward into the upward guide rail 11 by the lever, so that when the strong magnetic block 5 on the upward chain passes through the force-bearing steel sleeve 4 of the collection box 2, the force-bearing steel sleeve 4 generates a magnetic attraction force with the strong magnetic block 5 under the action of the magnetic field, thereby dragging the upward chain and the collection box 2 sliding along the upward guide rail 11, and passing through the counting device in turn for material collection.

[0069] A position detection unit is provided directly below the arc-shaped conversion guide rail. The position detection unit is electrically connected to the box pushing cylinder and the sliding drive device respectively. In this embodiment, the position detection unit preferably adopts a photoelectric sensor. When the position detection unit detects the end of the shift rod, the sliding drive device and the box pushing cylinder will be activated to push the collection box 2 on the downward track onto the arc-shaped conversion guide rail.

[0070] In this embodiment, the structures of the second conversion mechanism and the second box pushing mechanism are the same as those of the first conversion mechanism and the first box pushing mechanism, and are used to push the material collecting box in the upper guide rail along the arc-shaped conversion guide rail onto the lower guide rail.

[0071] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. They cannot be used to limit the scope of protection of the present invention. Any modifications made based on the spirit of the main technical solution of the present invention should be included in the scope of protection of the present invention.

Claims

1. A non-contact magnetic transmission device for a counting and packaging machine, characterized in that: The invention comprises a pair of forward guide rails (1), a plurality of material collecting boxes (2), a transmission mechanism (3), and a plurality of stop mechanisms (6); the material collecting boxes (2) are slidably arranged between the forward guide rails (1); a force-bearing shaft (21) is respectively provided on both sides of the material collecting box (2); a plurality of strong magnetic blocks (5) are arranged at intervals along the transmission direction on the transmission mechanism (3); a magnetic field gap is formed between the strong magnetic blocks (5) and the force-bearing shaft (21); the plurality of strong magnetic blocks (5) are driven to move forward along the forward guide rail (1) by the transmission mechanism (3); a magnetic attraction force is generated between the strong magnetic blocks (5) and the force-bearing shaft (21) when the strong magnetic blocks (5) pass through the material collecting box (2), so that the transmission mechanism (3) pulls the material collecting box (2) to slide along the forward guide rail (1) through the magnetic force; The inner side surface of the upward forward guide rail (1) is provided with a first non-magnetic isolation layer (8), and the inner side surface of the downward forward guide rail (1) is provided with a second non-magnetic isolation layer (9), so that the first non-magnetic isolation layer (8) and the second non-magnetic isolation layer (9) respectively cover the conveying mechanism (3); The plurality of stop mechanisms (6) are respectively arranged on the forward guide rail (1) at intervals along the axial direction. When the stop mechanism (6) is started, it contacts the material collecting box (2) and applies a stopping force to the material collecting box (2) so that the strong magnetic block (5) is separated from the magnetic attraction between the force-bearing shafts (21), so that the stop mechanism (6) keeps the material collecting box (2) at the current position. The upward forward guide rail (1) is rotatably provided with a plurality of retaining tongues (10) along the conveying direction of the material collecting box (2), and the side walls of the retaining tongues (10) are in contact with the force-bearing shaft (21) of the material collecting box (2).

2. The non-contact magnetic transmission device of a counting and packaging machine according to claim 1, characterized in that: A slot is provided in the middle of the second non-magnetic isolation layer (9), so that when the conveying mechanism (3) returns, the strong magnetic block (5) slides along the slot and supports the outer wall of the conveying mechanism (3) through the two inner walls of the slot.

3. The non-contact magnetic transmission device of a counting and packaging machine according to claim 1, characterized in that: A stressed steel sleeve (4) is sleeved on the stressed shaft (21), the inner diameter of the stressed steel sleeve (4) being larger than the outer diameter of the stressed shaft (21), and a rotatable roller (22) being provided at the end of the stressed shaft (21), the roller (22) being in rolling engagement with the forward guide rail (1).

4. The non-contact magnetic transmission device of a counting and packaging machine according to claim 3, characterized in that: The spacing between the strong magnetic block (5) and the stressed steel sleeve (4) is less than 5 mm, and the distance between any adjacent strong magnetic blocks (5) is equal to the distance between any adjacent collection boxes (2). The strong magnetic block (5) has a length of 15 mm to 30 mm, a width of 15 mm to 30 mm, and a height of 5 mm to 15 mm.

5. The non-contact magnetic transmission device of a counting and packaging machine according to claim 3, characterized in that: A limiting slideway (13) is provided above the downward forward guide rail (1), and the bottom surface of the limiting slideway (13) contacts the upper surface of the roller (22) to limit the upward movement of the roller (22) of the collecting box (2).

6. The non-contact magnetic transmission device of a counting and packaging machine according to claim 1, characterized in that: It also includes a control system, wherein an identification module is provided at the bottom of the material collection box (2), and the forward guide rail (1) is provided with a plurality of mounting plates corresponding to the stop mechanism, and a reading module is provided on the plurality of mounting plates, respectively. The reading modules are electrically connected to the control system, and the reading module is used to read the information of the identification module so that the control system can obtain the position of the material collection box (2), the type of building blocks required, and the loading amount, and the control system then controls the stop mechanism (6) to perform the stopping action. When the material collection box (2) completes material collection, the control system then controls the stop mechanism (6) to release the stopping action.

7. The non-contact magnetic transmission device for a counting and packaging machine according to claim 1, characterized in that: The conveying mechanism (3) comprises a forward chain, and the forward chain circulates up and down along the upward forward guide rail (1) and the downward forward guide rail (1).

8. The non-contact magnetic transmission device for a counting and packaging machine according to claim 1, characterized in that: The transmission mechanism (3) includes an upward chain and a downward chain that are driven independently. The upward chain is arranged on the inner side of the upward forward guide rail (1), and the downward chain is arranged on the inner side of the downward forward guide rail (1). The top surface of the strong magnetic block (5) is lower than the bottom surface of the force-bearing shaft (21).

9. The non-contact magnetic transmission device of a counting and packaging machine according to claim 8, characterized in that: The first and second track-changing mechanisms are respectively provided at the head and tail ends of the upward chain and the downward chain. The first track-changing mechanism comprises a pair of turntables, which are respectively rotatably arranged at the corners of the forward guide rail (1). A pair of shifting rods are symmetrically provided on the outer walls of the turntables. A linkage shaft is fixedly connected between the turntables, and the turntables are driven to rotate by a rotating motor. The overall structure of the second track-changing mechanism is the same as that of the first track-changing mechanism.

10. The non-contact magnetic transmission device of a counting and packaging machine according to claim 9, characterized in that: A first box pushing mechanism is provided above the head end of the descending chain, and a second box pushing mechanism is provided below the end of the ascending chain. The first box pushing mechanism includes a push plate and a push plate driving assembly. The push plate is slidably provided between the descending chains, and a pair of box pushing cylinders are respectively vertically fixedly installed on the push plates. The push plate is driven by the push plate driving assembly to slide in the direction of the first track changing mechanism. At the same time, the telescopic end of the box pushing cylinder is extended to push the material collecting box (2) on the descending forward guide rail (1) into the corner of the forward guide rail (1), so that when the turntable rotates, the material collecting box (2) is pushed from the descending forward guide rail (1) to the descending forward guide rail (1) through the lever. The overall structure of the second box pushing mechanism is the same as that of the first box pushing mechanism.

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