Material box height adjusting device

Abstract

The utility model discloses a material box height adjusting device, and relates to the technical field of automatic production, the material box height adjusting device comprises a support and a synchronizing mechanism, and a conveying bottom plate is arranged on the support in a liftable manner; the synchronizing mechanism comprises a first synchronizing wheel, a second synchronizing wheel and a synchronous belt; the first screw is sleeved with the first synchronous wheel, the second screw is sleeved with the second synchronous wheel, and the first synchronous wheel and the second synchronous wheel are sleeved with the synchronous belt. When the first screw rotates, the first synchronous wheel can be driven to drive the second synchronous wheel and the second screw to rotate synchronously, so that the conveying bottom plate ascends and descends. By the adoption of the synchronizing mechanism, accurate lifting of the conveying bottom plate is achieved, the height of the material box can be adjusted according to different requirements, the automation level and the operation efficiency are improved, stable lifting of the conveying bottom plate is ensured, the phenomenon that the conveying bottom plate is unbalanced in the lifting process due to inconsistent heights is avoided, and the conveying quality is improved. And the phenomenon that the material box deviates or is damaged is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automation production, especially relate to a material box height adjusting device. BACKGROUND

[0002] With the development of science and technology, in the automatic production line, the discharging box module is an automatic equipment, mainly used for quickly assembling the material box, that is, automatically moving the material box loaded with materials from a certain position of the production line to another position, realizing automatic feeding and discharging of materials. The discharging box module usually includes a feeding module, a driving module, a conveying bottom plate and a lifting mechanism and the like structure, and the above-mentioned structures work cooperatively to realize the carrying and discharging of materials.

[0003] In the related art, the screw lifting structure is usually used, that is, the conveying bottom plate is installed on the screw, the nut is provided on the conveying bottom plate, the nut is screwed with the screw, and the driving end is provided on the screw, the screw is rotated by the driving end to drive the conveying bottom plate to move up and down linearly. In order to improve the efficiency of the production line, a plurality of screw lifting structures are usually arranged to balance, but since the screw lifting structures are independently lifted, the conveying bottom plate is not balanced during lifting, which affects the production efficiency. SUMMARY

[0004] The main purpose of the utility model is to provide a material box height adjusting device, which aims to solve the technical problem of low height adjustment precision in the discharging box module in the related art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a material box height adjusting device, which comprises a conveying bottom plate and a lifting mechanism, the lifting mechanism comprises a first screw, a second screw, a first nut and a second nut, the first nut and the second nut are respectively provided on the corresponding two ends of the conveying bottom plate, the first screw passes through and screws with the first nut, the second screw passes through and screws with the second nut, and the material box height adjusting device further comprises:

[0006] A support, the conveying bottom plate is arranged on the support in a lifting manner;

[0007] A synchronous mechanism, the synchronous mechanism comprises a first synchronous wheel, a second synchronous wheel and a synchronous belt, the first synchronous wheel is sleeved on the first screw, the second synchronous wheel is sleeved on the second screw, and the synchronous belt is sleeved on the first synchronous wheel and the second synchronous wheel;

[0008] Wherein, when the first screw rotates, the first synchronous wheel can drive the second synchronous wheel and the second screw to rotate synchronously, so as to make the conveying bottom plate move up and down.

[0009] In an embodiment, the cartridge height adjusting device further comprises a locking mechanism and two fixing plates, the locking mechanism comprises a locking part, a first driving part and a first mounting plate, the first driving part is in transmission connection with the locking part, and the first driving part can rotate the locking part to exert force on the second screw rod;

[0010] One end of the first screw rod is provided with a driving part, the locking part is sleeved on the second screw rod, the first mounting plate is sleeved on the second screw rod, the first synchronous wheel is located between the driving part and the first mounting plate, and the fixing plate and the first mounting plate form a limiting groove therebetween, and the second synchronous wheel is limited in the limiting groove.

[0011] In an embodiment, the synchronous mechanism further comprises an idler wheel, a rotating shaft and a second mounting plate, two ends of the second mounting plate are respectively connected with a fixing plate, the rotating shaft is arranged on a side of the second mounting plate facing the synchronous belt, the idler wheel is sleeved on the rotating shaft, and the periphery of the idler wheel is sleeved on the synchronous belt.

[0012] In an embodiment, each fixing plate is provided with a support between the first synchronous wheel and the second synchronous wheel, and each support is sleeved on a screw rod.

[0013] In an embodiment, the cartridge height adjusting device further comprises at least two guide rods, each guide rod is movably arranged at two ends of opposite sides of the conveying bottom plate, one guide rod and the other guide rod are respectively located at the first mounting plate and the second mounting plate.

[0014] In an embodiment, the cartridge height adjusting device further comprises at least two guide rods, each guide rod is movably arranged at two ends of opposite sides of the conveying bottom plate, one guide rod and the other guide rod are respectively located at the first mounting plate and the second mounting plate.

[0015] In an embodiment, the cartridge height adjusting device further comprises a feeding module, the feeding module comprises a guide assembly and a pushing assembly, the pushing assembly is arranged on the support, the conveying bottom plate is provided with an opening through which the pushing assembly passes, the guide assembly is arranged on the conveying bottom plate, the pushing assembly is limited in the opening and abuts against the guide assembly.

[0016] In an embodiment, the cartridge height adjusting device further comprises an adjusting mechanism and a sensor, the sensor is arranged on the guide assembly, one end of the sensor is provided with a connecting piece, the adjusting mechanism comprises a bidirectional screw rod, a mounting seat and an adjusting part, the connecting piece is provided with a nut which is screwed with the bidirectional screw rod, the mounting seat is arranged on one side of the conveying bottom plate which faces the synchronous mechanism, the mounting seat is provided with a first opening, and the bidirectional screw rod passes through the first opening and is in transmission connection with one end of the adjusting part.

[0017] In an embodiment, the adjusting part comprises a locking piece and a second driving part, the locking piece and the second driving part are rotatably arranged on two sides adjacent to the mounting seat respectively, the mounting seat is provided with a second opening, the locking piece can rotate to apply a force to the bidirectional screw rod, and the bidirectional screw rod passes through the second opening and is in transmission connection with the second driving part.

[0018] In an embodiment, the guide assembly comprises a track, a sliding block and a guide piece, the track is arranged on the conveying bottom plate, the sliding block is in sliding connection with the track, and the guide piece is connected to one end of the sliding block which is away from the track.

[0019] In an embodiment, the pushing assembly comprises a pushing connecting plate, a third driving part, a jacking plate and a pushing shaft, the pushing shaft passes through the conveying bottom plate, the pushing connecting plate passes through one side of the conveying bottom plate and is connected to one end of the pushing shaft, the third driving part is arranged on one side of the conveying bottom plate which is away from the pushing connecting plate, the third driving part is sleeved on the pushing shaft, and the jacking plate is arranged on one end of the pushing connecting plate which is away from the conveying bottom plate.

[0020] The technical scheme of the utility model discloses adopts the synchronous mechanism, realizes the accurate lifting of conveying bottom plate, makes the cartridge can adjust height according to different needs, improves the automation level and operation efficiency. In addition, the first synchronous wheel and the second synchronous wheel connected by the synchronous belt ensure the synchronous rotation of the first screw rod and the second screw rod, so that the stable lifting of the conveying bottom plate is ensured, and the phenomenon of the cartridge deviation or damage caused by the inconsistent height during the lifting of the conveying bottom plate is avoided. ACCURACY

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to the structure shown in the drawings without creating labor.

[0022] Figure 1The structure schematic view of the material box height adjusting device is provided.

[0023] Figure 2 The structure schematic view of the material box height adjusting device is provided.

[0024] Figure 3 The structure schematic view of the material box height adjusting device is provided.

[0025] Explanation of the attached drawings:

[0026] 1000, material box height adjusting device, 1, support, 2, synchronous mechanism, 21, first synchronous wheel, 22, second synchronous wheel, 23, synchronous belt, 24, idler, 25, second mounting plate, 26, support piece, 3, locking mechanism, 31, locking part, 32, first driving part, 33, first mounting plate, 34, fixed plate, 4, lifting mechanism, 41, first screw rod, 42, second screw rod, 43, driving piece, 5, conveying bottom plate, 6, guide rod, 7, feeding module, 71, track, 72, guide piece, 73, jacking plate, 74, pushing shaft, 75, third driving part.

[0027] The realization, functional features and advantages of the utility model will be further explained by combining with the embodiments and referring to the drawings. Specific implementation

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below by combining with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0029] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, if the certain posture changes, the directional indications also change accordingly.

[0030] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0031] The utility model provides a material box height adjusting device 1000.

[0032] Please refer to Figures 1 to 2 In an embodiment of the present application, the material box height adjusting device comprises a conveying bottom plate 5 and a lifting mechanism 4, the lifting mechanism 4 comprises a first screw rod 41, a second screw rod 42, a first nut and a second nut, the first nut and the second nut are respectively arranged at opposite ends of the conveying bottom plate 5, the first screw rod 41 passes through and is screwed with the first nut; the second screw rod 42 passes through and is screwed with the second nut, the material box height adjusting device further comprises a support 1 and a synchronous mechanism 2, the conveying bottom plate 5 is arranged on the support 1 in a lifting manner; the synchronous mechanism 2 comprises a first synchronous wheel 21, a second synchronous wheel 22 and a synchronous belt 23; the first synchronous wheel 21 is sleeved on the first screw rod 41, the second synchronous wheel 22 is sleeved on the second screw rod 42, and the synchronous belt 23 is sleeved on the first synchronous wheel 21 and the second synchronous wheel 22; wherein the first screw rod 41 can drive the first synchronous wheel 21 to drive the second synchronous wheel 22 and the second screw rod 42 to rotate synchronously when rotating, so as to make the conveying bottom plate 5 move up and down.

[0033] In this embodiment, based on the screw drive principle, the first nut and the second nut move up and down by rotating the first screw 41 and the second screw 42. Since the first nut and the second nut are fixed at both ends of the conveying base plate 5, the movement of the nuts drives the lifting and lowering of the conveying base plate 5. The synchronization mechanism 2 is used to ensure that the two screws rotate synchronously, avoiding tilting or damage to the conveying base plate 5 due to inconsistent speeds. The synchronization belt 23 is used to ensure the rotational synchronization between the two synchronization pulleys. Accordingly, the number of the first screw 41, the second screw 42, the first nut, and the second nut is not limited here. The first screw 41, the second screw 42, the first nut, and the second nut are divided into different types. One end of the first screw 41 is provided with a drive unit to provide rotational power. The two ends of the second screw 42 are not provided with separate drive units. The rotational power of the second screw 42 is transmitted to the synchronization belt 23 through the rotation of the first synchronization pulley 21. The synchronization belt 23 drives the second synchronization pulley 22, thereby realizing the drive of the second screw 42. The number of the first synchronization pulley 21 and the second synchronization pulley 22 is also not limited and can be set according to actual needs. Preferably, two synchronous pulleys, two screws, and two nuts are provided to cooperate with the conveyor base plate 5 to achieve the optimal embodiment of this solution. The screws can be made of steel, high-temperature alloys, or other materials, and are not limited here. Furthermore, the rotation of the first screw 41 can be driven electrically or manually, and is not limited here; it can be set according to actual needs.

[0034] The technical solution of this utility model achieves precise lifting and lowering of the conveyor base plate 5 by employing a synchronization mechanism 2, allowing the material box to be adjusted in height according to different needs, thereby improving the level of automation and operating efficiency. Furthermore, the first synchronization pulley 21 and the second synchronization pulley 22 connected by the synchronization belt 23 ensure the synchronous rotation of the first screw 41 and the second screw 42, thus ensuring the smooth lifting and lowering of the conveyor base plate 5 and avoiding imbalance during the lifting and lowering process caused by inconsistent heights, which could lead to material box displacement or damage.

[0035] In an embodiment of this utility model, the material box height adjustment device further includes a locking mechanism 3 and two fixing plates 34. The locking mechanism 3 includes a locking part 31, a first driving part 32 and a first mounting plate 33. The first driving part 32 is connected to the locking part 31 in a transmission manner. The first driving part 32 can rotate the locking part to apply force to the second screw 42.

[0036] One end of the first screw 41 is provided with a driving member 43, the locking part 31 is sleeved on the second screw 42, the first mounting plate 33 is sleeved on the second screw 42, the first synchronous wheel 21 is located between the driving member 43 and the first mounting plate 33, wherein a fixing plate 34 and the first mounting plate 33 form a limiting groove, and the second synchronous wheel 22 is limited within the limiting groove.

[0037] CombinationFigure 2 and Figure 3 In the embodiment, the locking mechanism 3 is used to fix and adjust the second screw 42, so as to ensure the consistency of the first screw 41 and the second screw 42. The two fixed plates 34 are used to provide structural support and positioning, so as to ensure the stability and accuracy of the synchronous wheel and the conveying bottom plate 5 during the adjustment process, and the first mounting plate 33 is used to fix the locking part 31. The locking part 31 is used to apply a force to the second screw 42, and the first driving part 32 is used to drive the locking part 31. Correspondingly, the first driving part 32 can drive the locking part 31 in the mode of electricity, manual, air cylinder, etc. The driving part 43 can be in the form of a motor or a rotatable turntable, which is not limited here. Further, when it is necessary to adjust the height of the material box, the first driving part 32 is used to loosen the second screw 42 through the locking part 31, and then the position of the screw is adjusted through the synchronous mechanism 2. After reaching the required height, the locking part 31 is used to lock the second screw 42 again, so that the conveying bottom plate 5 is fixed at the new height. The above setting mode can conveniently adjust the height of the material box to adapt to different production requirements through the locking and releasing of the locking mechanism 3. Due to the setting of the locking mechanism 3, the conveying bottom plate 5 can be firmly fixed after being adjusted to the appropriate height, so as to ensure the stability and safety of the production process.

[0038] In the embodiment of the utility model, synchronous mechanism 2 still includes idler 24, pivot and second mounting plate 25, second mounting plate 25's both ends are connected with a fixed plate 34 respectively, pivot is located at second mounting plate 25's one side facing synchronous belt 23, idler 24 is sleeved on pivot, idler 24's periphery is sleeved on synchronous belt 23.

[0039] In the embodiment, the cooperation of the idler 24, the pivot and the synchronous belt 23 ensures that the synchronous belt 23 can maintain appropriate tension during transmission, prevents the synchronous belt 23 from slipping or falling off, and ensures that the synchronous belt 23 stably transmits power between the first synchronous wheel 21 and the second synchronous wheel 22. The second mounting plate 25 can be fixed between the two fixed plates 34 by welding, screwing or the like, so as to ensure the stability of its position. The above setting mode ensures the stability of the position of the idler 24 through the fixation of the second mounting plate 25, so as to ensure the effective tensioning of the synchronous belt 23, and avoid the vibration and relaxation phenomenon that may occur when the synchronous belt 23 is running at high speed. At the same time, as a supporting wheel, the idler 24 can reduce the bending stress of the synchronous belt 23, prolong the service life of the synchronous belt 23, and improve the operation stability and reliability of the whole adjustment mechanism.

[0040] In the embodiment of the utility model, every fixed plate 34 with first synchronous wheel 21, second synchronous wheel 22 between establish a support 26, every support 26 is sleeved on a screw.

[0041] In the embodiment, the support 26 is used to provide additional support and stability. The presence of the support 26 can better support each fixing plate 34, and can also enhance the strength and rigidity of the synchronous mechanism 2 on the lower side of the fixing plate 34, thereby improving the overall stability.

[0042] In the embodiment of the utility model, the material box height adjusting device further includes at least two guide rods 6, each guide rod 6 is movably arranged at two ends of the opposite sides of the conveying bottom plate 5, one of the guide rods 6 and the other guide rod 6 are respectively located at the first mounting plate 33 and the second mounting plate 25.

[0043] In the embodiment, the guide rod 6 is used to provide vertical support and guiding effect of the conveying bottom plate, so as to ensure that the conveying bottom plate 5 moves along the preset vertical path during lifting, and prevent the conveying bottom plate 5 from deviating or tilting. Preferably, four guide rods 6 are used in the present scheme, which provide support in four directions of the conveying bottom plate 5, and ensure the balance of the conveying bottom plate 5. Further, the guide rod 6 can be installed at the opposite ends of the conveying bottom plate 5 by installing a guide shaft. The above arrangement improves the stability and reliability of the entire adjusting device. They ensure that the conveying bottom plate 5 does not tilt or deviate during lifting, thereby protecting the integrity and safety of the materials in the material box.

[0044] In the embodiment of the utility model, the material box height adjusting device further includes a feeding module 7, the feeding module 7 includes a guide assembly and a pushing assembly, the pushing assembly is arranged on the bracket 1, the conveying bottom plate 5 is provided with an opening through which the pushing assembly passes, the guide assembly is arranged on the conveying bottom plate 5, the pushing assembly is limited in the opening and abuts against the guide assembly.

[0045] In the embodiment, the cooperation of the guide assembly and the pushing assembly realizes an efficient and stable feeding process. This design can effectively reduce the falling and deviation of the workpiece during conveying, thereby improving the stability and safety of feeding. In addition, through the abutment of the pushing assembly and the guide assembly, the stable movement of the pushing assembly in the opening of the conveying bottom plate 5 can be ensured, and the accuracy of feeding is further improved.

[0046] In the embodiment of the utility model, the material box height adjusting device further includes an adjusting mechanism and a sensor, the sensor is arranged on the guide assembly, one end of the sensor is provided with a connecting piece, the adjusting mechanism includes a bidirectional screw rod, a mounting seat and an adjusting part, the connecting piece is provided with a nut which is screwed with the bidirectional screw rod, the mounting seat is arranged on one side of the conveying bottom plate 5 facing the synchronous mechanism 2, the mounting seat is provided with a first opening, and the bidirectional screw rod passes through the first opening and is in transmission connection with one end of the adjusting part.

[0047] In the embodiment, the precise adjustment of the position of the inductor is realized by the rotation of the bidirectional screw rod. When the bidirectional screw rod rotates, the nut screwed with the bidirectional screw rod moves along the screw rod axis, thereby driving the position of the connecting piece and the inductor on the guide assembly to change. This transmission mode can realize very precise position control, because the pitch of the screw thread directly determines the step distance of the movement of the inductor.

[0048] In the embodiment of the utility model, the adjusting part includes locking piece and second driving part, locking piece, second driving part are rotatablely arranged on the two sides adjacent to the mounting seat respectively, the mounting seat is opened with second opening, locking piece can rotate and apply force to bidirectional screw rod, bidirectional screw rod passes through second opening and is in transmission connection with second driving part.

[0049] In the embodiment, the second driving part can be driven by electricity or manually, and the locking piece is used to ensure that the bidirectional screw rod adjusting mechanism can be firmly fixed in the current state after being adjusted to the appropriate position, preventing displacement or loosening due to vibration, impact or other external forces. The locking piece is provided with an internal thread matched with the external thread of the bidirectional screw rod, and the bidirectional screw rod is locked by tightening the locking piece. The above setting mode realizes precise adjustment and reliable locking.

[0050] In the embodiment of the utility model, the guide assembly includes track 71, sliding block and guide piece 72, track 71 is arranged on conveying bottom plate 5, sliding block is connected with track 71 in sliding mode, and guide piece 72 is connected with one end of sliding block away from track 71.

[0051] In the embodiment, the precise movement of the jacking plate 73 is realized by the sliding of the sliding block on the track 71. The sliding block cooperates with the track 71 to ensure that the jacking plate 73 can stably perform the lifting movement at the opening of the conveying bottom plate 5. The guide piece 72 is connected with one end of the sliding block away from the track 71, providing additional stability and guiding effect, and ensuring that the jacking plate 73 does not deviate from the predetermined path during the movement.

[0052] In the embodiment of the utility model, the pushing assembly includes a pushing connecting plate, a third driving part 75, a jacking plate 73 and a pushing shaft 74, the pushing shaft 74 is arranged in the conveying bottom plate 5, the pushing connecting plate is arranged on one side of the conveying bottom plate 5 and connected with one end of the pushing shaft 74, the third driving part 75 is arranged on the side of the conveying bottom plate 5 away from the pushing connecting plate, the third driving part 75 is sleeved on the pushing shaft 74, and the jacking plate 73 is arranged on one end of the pushing connecting plate away from the conveying bottom plate 5.

[0053] In the embodiment, the driving part can be driven by a driving motor or a cylinder. Correspondingly, the number of the pushing plate connecting plates, the pushing shafts 74 and the lifting plates 73 can be set according to actual requirements. Each lifting plate 73 is connected with a pushing plate connecting shaft, and the pushing plate connecting shaft is connected with a pushing shaft 74. Power is provided by the driving part, so that the pushing plate connecting plates move along the pushing shafts 74, and then push the lifting plates 73, thereby realizing pushing of the materials. The above setting mode can effectively transmit force to the materials by the pushing assembly, thereby realizing stable pushing.

[0054] The above merely illustrates the exemplary embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, which is made under the technical concept of the present application, and according to the content of the present application specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A material box height adjustment device, the material box height adjustment device comprising a conveying base plate (5) and a lifting mechanism (4), the lifting mechanism (4) comprising a first screw (41), a second screw (42), a first nut and a second nut, the first nut and the second nut being respectively disposed at corresponding ends of the conveying base plate (5), the first screw (41) passing through and screwing the first nut; the second screw (42) passing through and screwing the second nut, characterized in that, The material box height adjustment device also includes: The support (1) is provided with the conveying base plate (5) which can be lifted and lowered on the support (1); Synchronization mechanism (2), the synchronization mechanism (2) includes a first synchronization pulley (21), a second synchronization pulley (22) and a synchronization belt (23); the first synchronization pulley (21) is sleeved on the first screw (41), the second synchronization pulley (22) is sleeved on the second screw (42), and the synchronization belt (23) is sleeved on the first synchronization pulley (21) and the second synchronization pulley (22); When the first screw (41) rotates, it can drive the first synchronous wheel (21) to drive the second synchronous wheel (22) and the second screw (42) to rotate synchronously, so that the conveying base plate (5) can move up and down.

2. The material box height adjustment device as described in claim 1, characterized in that, The height adjustment device of the material box also includes a locking mechanism (3) and two fixing plates (34). The locking mechanism (3) includes a locking part (31), a first driving part (32) and a first mounting plate (33). The first driving part (32) is connected to the locking part (31) in a transmission manner. The first driving part (32) can rotate the locking part to apply force to the second screw (42). One end of the first screw (41) is provided with a driving member (43), the locking part (31) is sleeved on the second screw (42), the first mounting plate (33) is sleeved on the second screw (42), the first synchronous wheel (21) is located between the driving member (43) and the first mounting plate (33), wherein a fixing plate (34) forms a limiting groove between the first mounting plate (33), and the second synchronous wheel (22) is limited to the limiting groove.

3. The material box height adjustment device as described in claim 2, characterized in that, The synchronization mechanism (2) further includes an idler wheel (24), a rotating shaft, and a second mounting plate (25). The two ends of the second mounting plate (25) are respectively connected to a fixed plate (34). The rotating shaft is located on the side of the second mounting plate (25) facing the synchronous belt (23). The idler wheel (24) is sleeved on the rotating shaft, and the periphery of the idler wheel (24) is sleeved on the synchronous belt (23).

4. The material box height adjustment device as described in claim 3, characterized in that, A support member (26) is provided between each of the fixed plates (34) and the first synchronous wheel (21) and the second synchronous wheel (22), and each of the support members (26) is sleeved on a screw.

5. The material box height adjustment device as described in claim 4, characterized in that, The material box height adjustment device further includes at least two guide rods (6), each guide rod (6) being movably inserted through the two ends of opposite sides of the conveying base plate (5), wherein one guide rod (6) and the other guide rod (6) are respectively located on the first mounting plate (33) and the second mounting plate (25).

6. The material box height adjustment device as described in any one of claims 1 to 5, characterized in that, The height adjustment device of the material box also includes a feeding module (7), the feeding module (7) includes a guide component and a pushing component, the pushing component is provided on the bracket (1), the conveying base plate (5) has an opening for the pushing component to pass through, the guide component is provided on the conveying base plate (5), the pushing component is limited to the opening and abuts against the guide component.

7. The material box height adjustment device as described in claim 6, characterized in that, The material box height adjustment device further includes an adjustment mechanism and a sensor. The sensor is located on the guide assembly, and one end of the sensor is provided with a connector. The adjustment mechanism includes a bidirectional lead screw, a mounting base, and an adjustment part. The connector is provided with a nut that is screwed to the bidirectional lead screw. The mounting base is located on the side of the conveying base plate (5) facing the synchronization mechanism (2). The mounting base has a first opening, and the bidirectional lead screw passes through the first opening and is connected to one end of the adjustment part for transmission.

8. The material box height adjustment device as described in claim 7, characterized in that, The adjustment part includes a locking member and a second driving part. The locking member and the second driving part are rotatably disposed on adjacent sides of the mounting base. The mounting base has a second opening. The locking member can rotate to apply force to the bidirectional lead screw. The bidirectional lead screw passes through the second opening and is connected to the second driving part for transmission.

9. The material box height adjustment device as described in claim 6, characterized in that, The guiding assembly includes a track (71), a slider, and a guide (72). The track (71) is disposed on the conveying base plate (5). The slider is slidably connected to the track (71). The guide (72) is connected to the end of the slider away from the track (71).

10. The material box height adjustment device as described in claim 6, characterized in that, The pushing assembly includes a pushing connecting plate, a third driving part (75), a lifting plate (73), and a pushing shaft (74). The pushing shaft (74) passes through the conveying base plate (5). The pushing connecting plate passes through one side of the conveying base plate (5) and is connected to one end of the pushing shaft (74). The third driving part (75) is located on the side of the conveying base plate (5) away from the pushing connecting plate. The third driving part (75) is sleeved on the pushing shaft (74). The lifting plate (73) is located at the end of the pushing connecting plate away from the conveying base plate (5).

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