Quantitative discharging mechanism

Abstract

The utility model provides a quantitative blanking mechanism which is arranged in a blanking box and comprises a blanking closest part, a transmission assembly and a driving assembly, the blanking closest part comprises two blanking rollers arranged in the blanking box, the transmission assembly comprises two gears meshed with each other, the two gears are respectively arranged on the two blanking rollers, the two gears are meshed with each other, and the driving assembly drives the blanking closest part to rotate. The gear rotates to drive the two discharging rollers to rotate relatively, the driving assembly comprises a driving motor and a driving part, teeth capable of being meshed with the gear are arranged on the driving part, the driving motor drives the driving part to rotate, and the teeth on the driving part are in intermittent fit with the gear.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a quantitative feeding mechanism. Background Art

[0002] The lifting feeder is one of the important equipment in cigarette production, including lifting conveyor, temporary storage cabinet, horizontal conveyor and other equipment. The temporary storage cabinet is used to temporarily store tobacco, and the horizontal conveyor is used to send the tobacco in the temporary storage cabinet to the lifting conveyor. In actual production, the material inventory is large, and the tobacco in the temporary storage cabinet falls directly onto the horizontal conveyor. The lifting conveyor has a large single transport volume, and the material is higher than the spike rake on the lifting conveyor. Excessive material rolls down with the movement of the lifting conveyor, resulting in an increase in the crushing rate of tobacco material and reduced tobacco quality. Utility Model Content

[0003] The purpose of the utility model is to provide a quantitative feeding mechanism to address the deficiencies of the prior art.

[0004] The utility model proposes a quantitative feeding mechanism, which is arranged in a feeding box, and includes a feeding device, a transmission component and a driving component. The feeding device includes two feeding rollers arranged in the feeding box, the transmission component includes two gears meshing with each other, the two gears are respectively arranged on the two feeding rollers, the two gears mesh with each other, and the rotation of the gears drives the two feeding rollers to rotate relative to each other. The driving component includes a driving motor and a driving member, the driving member is provided with teeth that can mesh with the gears, the driving motor drives the driving member to rotate, and the teeth on the driving member intermittently cooperate with the gears.

[0005] A better technical solution of the utility model: the driving member is connected to the output shaft of the driving motor through a connecting rod, a fixing member is provided at the end of the connecting rod, the driving member is inserted into the fixing member, and also includes a fixed guide member, the driving member can be rotated to contact the guide member, and the guide member pushes the driving member to gradually approach the gear until the driving member is meshed with the gear.

[0006] A better technical solution of the utility model is as follows: a movable cavity is arranged inside the fixing part, the driving part passes through the movable cavity, the teeth are located outside the movable cavity, a spring is arranged inside the movable cavity, a limiting ring is arranged on the driving part, the limiting ring is arranged in the movable cavity, and two ends of the spring are connected to the limiting ring and the inner wall of the movable cavity.

[0007] A better technical solution of the utility model is as follows: the guide member comprises a guide rail, the longitudinal section of the guide rail is an arc with a fixed radius, and when the driving member contacts the guide rail, the teeth mesh with the gear.

[0008] A more optimal technical solution of the utility model is that the longitudinal section of the guide rail is a minor arc.

[0009] The preferred technical solution of the utility model also includes a guide rail arranged at the end of the guide rail, the longitudinal section of the guide rail is arc-shaped, the guide rails are tangent to each other, and the driving member moves from the guide rail to the guide rail.

[0010] A better technical solution of the utility model: it also includes an abutment end arranged at the end of the driving member, the abutment end and the tooth are respectively arranged at two ends of the driving member, and the abutment end contacts the guide member.

[0011] The preferred technical solution of the utility model is as follows: a plurality of roller bodies are evenly spaced on the outer circumferential surface of the unloading roller, and the roller bodies on the two unloading rollers are staggered.

[0012] The better technical solution of the utility model is as follows: a plurality of cleaning grooves are arranged on the side wall of the unloading box, and when the unloading roller rotates, a cleaning brush is arranged on the side wall of the cleaning groove, and the end of the roller body passes through the cleaning groove.

[0013] A better technical solution of the utility model is as follows: the unloading roller passes through the unloading box, and the transmission assembly and the drive assembly are both arranged outside the unloading box.

[0014] The quantitative feeding mechanism of the utility model has the following beneficial effects:

[0015] 1. Use the transmission assembly and the drive assembly to control the intermittent rotation of the unloading roller, so that the unloading box can unload intermittently and realize quantitative unloading, thereby controlling the feeding amount of the lifting conveyor to avoid the problem of material falling due to excessive material amount, thereby reducing the crushing rate of tobacco material.

[0016] 2. The output shaft of the driving motor is connected to the fixed part, and the driving part is slidably inserted in the fixed part. When the driving motor rotates, the driving part is separated from the gear under the centrifugal effect, so that the unloading roller stops rotating and the unloading box stops rotating. A guide part is arranged on the rotation track of the driving part. The driving part contacts the guide part during the rotation process and is pushed by the guide part to slide in the fixed part until it contacts the gear, thereby driving the gear to rotate, causing the unloading roller to rotate and the unloading box to unload materials, thereby realizing quantitative unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A cross-sectional view of the lifting feeder.

[0019] Figure 2 It is a schematic diagram of the cleaning tank on the lower material box in the utility model.

[0020] Figure 3 It is a front view of the feeding roller in the utility model.

[0021] Figure 4 It is a side view of the transmission assembly in the utility model.

[0022] Figure 5 This is a side view of the unloading roller in the utility model

[0023] Figure 6 It is a schematic diagram of the cooperation between the transmission component and the drive component in the utility model.

[0024] Figure 7 It is a schematic diagram of the movement of the driving component in the utility model.

[0025] In the figure: 10, unloading assembly; 11, unloading roller; 111, roller body; 20, transmission assembly; 21, gear; 30, driving assembly; 31, driving motor; 32, driving member; 321, tooth; 322, abutment end; 323, limit ring; 33, connecting rod; 34, fixing member; 341, moving cavity; 342, spring; 40, guide member; 41, guide rail; 42, guide rail; 50, unloading box; 51, cleaning trough; 52, cleaning brush. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0027] See also Figures 1 to 7 A quantitative unloading mechanism is provided in an unloading box 50 to control unloading of materials from the unloading box 50. The unloading mechanism comprises an unloading assembly 10, a transmission assembly 20 and a drive assembly 30. The unloading assembly 10 comprises two unloading rollers 11. The transmission assembly 20 comprises two gears 21 meshing with each other. The two gears 21 are respectively arranged on the two unloading rollers 11. The rotation of the two gears 21 drives the unloading rollers 11 to rotate for unloading. The drive assembly 30 comprises a driving motor 31 and a driving member 32. The driving member 32 is provided with teeth 321 that can mesh with the gears 21. The driving member 32 rotates under the drive of the driving motor 31. The teeth 321 on the driving member 32 intermittently cooperate with the gears 21 to drive the gears 21 to rotate intermittently, thereby making the unloading rollers 11 rotate intermittently to achieve quantitative unloading.

[0028] See also Figure 1 , the unloading component 10 is arranged at the unloading end of the unloading box 50, the axes of the two unloading rollers 11 are parallel to each other, and the outer circumferential surfaces of the unloading rollers 11 are provided with roller bodies 111 arranged evenly spaced apart. The two unloading rollers 11 are arranged adjacent to each other, and the roller bodies 111 on the two unloading rollers 11 are staggered. The two unloading rollers 11 rotate relative to each other, and the material above the unloading rollers 11 is driven by the roller bodies 111 to move downward for unloading. When the unloading rollers 11 rotate evenly and intermittently, the material falls intermittently, thereby realizing quantitative unloading; when the unloading rollers 11 stop rotating, the staggered stops between the roller bodies 111 can prevent a large amount of material from falling. The unloading roller 11 is driven to rotate by the gear 21, and the gear 21 is coaxially arranged at the end of the unloading roller 11, and the gear 21 is located outside the unloading box 50 to prevent the material from falling between the gears 21 and affecting the transmission of the gear 21, such as Figure 4 and Figure 6 shown.

[0029] Preferably, a ratchet assembly (not shown in the figure) is also included, the ratchet assembly includes a ratchet and a pawl, the ratchet is coaxially arranged on one of the unloading rollers 11, and the pawl is fixedly arranged on the inner wall of the unloading box 50; the pawl can be stuck in the teeth of the ratchet to limit the rotation of the ratchet, and then limit the rotation of the unloading roller 11, so as to prevent the unloading roller 11 from rotating in the opposite direction due to the weight of the material, resulting in unloading when the transmission assembly 20 is not in operation. Specifically, when the transmission assembly 20 is in action, the ratchet assembly does not affect the mutual engagement of the two gears 21, the two unloading rollers 11 rotate in opposite directions, and the material falls from between the two unloading rollers 11 to unload; when the transmission assembly 20 stops, the two unloading rollers 11 cannot rotate in the opposite direction even under the pressure of the material due to the restriction of the ratchet assembly, so that the two unloading rollers 11 remain stationary and the material cannot fall, thereby achieving quantitative unloading.

[0030] Preferably, the unloading box 50 is also provided with a cleaning groove 51, and a plurality of cleaning grooves 51 are evenly spaced on the inner wall of the unloading box 50. The cleaning grooves 51 are arranged one-to-one with the roller body 111 on the unloading roller 11, so that when the unloading roller 11 rotates, the end of the roller body 111 passes through the cleaning groove 51. A cleaning brush 52 is arranged in the cleaning groove 51. Specifically, the cleaning brush 52 is made of silicone and is fixedly arranged on the two side walls of the cleaning groove 51. When the unloading roller 11 rotates, the end of the roller body 111 passes through the cleaning groove 51, and the cleaning brush 52 brushes the outer wall of the roller body 111 to clean the roller body 111. Figure 2 shown.

[0031] In the present application, the driving motor 31 drives the driving member 32 to rotate through the connecting rod 33. The output shaft of the driving motor 31 is fixedly connected to the connecting rod 33. A fixing member 34 is provided at the end of the connecting rod 33. The driving member 32 is inserted into the fixing member 34. The driving motor 31 drives the connecting rod 33 to rotate, thereby driving the fixing member 34 to make a circular motion around the output shaft of the driving motor 31, thereby driving the driving member 32 to move around the periphery of the two gears 21.

[0032] Specifically, see Figure 6 and Figure 7 A movable cavity 341 is provided inside the fixing member 34, and the driving member 32 is in the form of a straight rod, one end of which is provided with a tooth 321 that can mesh with the gear 21, and the other end is an abutment end 322, on which a rubber is provided to prevent the driving member 32 from being worn. The driving member 32 is movably inserted in the fixing member 34, and the driving member 32 is parallel to the connecting rod 33, and one end of the driving member 32 with the tooth 321 is close to the driving motor 31; when the driving motor 31 rotates, with the output shaft of the driving motor 31 as the axis, under the action of centrifugation, the driving member 32 moves radially (outward), and then moves away from the gear 21, the tooth 321 is separated from the gear 21, the transmission assembly 20 stops rotating, and the unloading roller 11 stops unloading.

[0033] In order to prevent the driving member 32 from separating from the fixing member 34 during rotation, a movable cavity 341 is provided inside the fixing member 34, the driving member 32 passes through the movable cavity 341, both ends of the driving member 32 are arranged outside the movable cavity 341, and a limit ring 323 is provided on the driving member 32, and the limit ring 323 is located inside the movable cavity 341; when the driving member 32 moves radially under the action of centrifugation, the limit ring 323 moves synchronously until the limit ring 323 abuts against the inner wall of the movable cavity 341, and the radial displacement of the driving member 32 stops, thereby preventing the driving member 32 from separating from the fixing member 34.

[0034] A guide member 40 is fixedly arranged inside the unloading box 50, including a guide rail 41. The longitudinal section of the guide rail 41 is in the shape of an arc, and the radius of the arc is constant. The guide rail 41 is arranged on the moving path of the driving member 32 with the output shaft of the driving motor 31 as the center. The radius corresponding to the guide rail 41 should meet the requirement of being smaller than the radius corresponding to the abutting end 322 of the driving member 32 at the farthest end in the radial direction under the centrifugal action. When the driving member 32 rotates to the guide rail 41, since the radial dimension of the guide rail 41 is smaller than the radial dimension corresponding to the abutting end 322 during the rotation process, after the abutting end 322 of the driving member 32 contacts the guide rail 41, the driving member 32 is pushed by the guide member 40 to approach the gear 21 and mesh with the gear 21. Under the action of the driving motor 31, the abutting end 322 of the driving member 32 slides along the guide rail 41 and keeps its end meshing with the gear 21, thereby driving the gear 21 to rotate, the two gears 21 mesh with each other, and the two unloading rollers 11 rotate towards each other to realize unloading.

[0035] The arc length of the guide rail 41 is a minor arc. When the abutting end 322 of the driving member 32 contacts the guide rail 41, the tooth 321 at the other end of the driving member 32 cooperates with the gear 21, driving the gear 21 to rotate, thereby driving the unloading roller 11 to rotate to achieve unloading; when the driving member 32 travels along the entire guide rail 41 and the abutting end 322 is separated from the guide rail 41, under the action of centrifugation, the tooth 321 at the end of the driving member 32 is separated from the gear 21 again, and the unloading roller 11 stops rotating and suspends unloading; under the action of the driving motor 31, the driving member 32 performs a circular motion, and each time a circular motion is completed, the driving member 32 contacts the guide member 40 once, and the unloading roller 11 performs unloading once, and the driving member 32 continues to rotate, and the driving member 32 intermittently contacts the guide member 40 to achieve intermittent unloading. The amount of material discharged depends on the rotation angle of the discharge roller 11, and the rotation angle of the discharge roller 11 is determined by the rotation angle of the gear 21, that is, the number of meshing teeth 321 of the driving member 32 and the gear 21, that is, the length of the guide rail 41 acting on the driving member 32. The amount of material discharged can be increased by increasing the arc length of the guide rail 41, or reduced by reducing the arc length of the guide rail 41. Quantitative material discharge is achieved by setting the arc length of the guide rail 41. In this embodiment, the angle corresponding to the arc length of the guide rail 41 is ninety degrees.

[0036] Preferably, in order to make the driving member 32 contact the guide rail 41 smoothly, a guide rail 42 is also provided at the end of the guide rail 41, the longitudinal section of the guide rail 42 is a curve, and the two ends of the guide rail 42 are respectively defined as the head and tail ends. From the head end to the tail end, the radius corresponding to the guide rail 42 gradually decreases, and the radius of the head end of the guide rail 42 is greater than the maximum radius corresponding to the abutment end 322 of the driving member 32 under the centrifugal action, and the tail end of the guide rail 42 is tangent to the end of the guide rail 41, and the radius gradually decreases from the guide rail 42 to the guide rail 41, so that the guide rail 42 provides guidance for the driving member 32 to contact the guide rail 41, and the connection between the guide rail 42 and the guide rail 41 is smoothly transitioned. When the driving member 32 rotates, the abutment end 322 first contacts the guide rail 42, and gradually transitions along the guide rail 42 to contact the guide rail 41 during the rotation process, so as to avoid the driving member 32 being unable to enter the guide rail 41 and the abutment end 322 interfering with the end of the guide rail 41.

[0037] During the rotation of the driving member 32, when the abutting end 322 moves along the guide rail 42, the tooth 321 at the other end of the driving member 32 gradually approaches the gear 21, until the abutting end 322 moves onto the guide rail 41, the tooth 321 at the other end of the driving member 32 is fully engaged with the gear 21, and the abutting end 322 moves along the guide rail 41, and the tooth 321 at the other end is engaged with the gear 21 to drive the gear 21 to rotate, thereby driving the unloading roller 11 to unload the material.

[0038] Preferably, a spring 342 is also provided in the movable cavity 341, and the two ends of the spring 342 are respectively fixedly connected to the limit ring 323 and the inner wall of the movable cavity 341. The spring 342 provides shock absorption for the driving member 32 to prevent the driving member 32 from jumping in the radial direction due to friction and the like, thereby reducing the collision between the teeth 321 on the driving member 32 and the gear 21, thereby improving the matching stability of the driving member 32 and the gear 21.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A quantitative feeding mechanism, characterized in that: The device is arranged in a material discharge box (50), and comprises a material discharge component (10), a transmission component (20) and a drive component (30). The material discharge component (10) comprises two material discharge rollers (11) arranged in the material discharge box (50). The transmission component (20) comprises two gears (21) meshing with each other. The two gears (21) are respectively arranged on the two material discharge rollers (11). The two gears (21) mesh with each other. The rotation of the gears (21) drives the two material discharge rollers (11) to rotate relative to each other. The drive component (30) comprises a drive motor (31) and a drive member (32). The drive member (32) is provided with teeth (321) that can mesh with the gears (21). The drive motor (31) drives the drive member (32) to rotate. The teeth (321) on the drive member (32) intermittently cooperate with the gears (21).

2. A quantitative feeding mechanism according to claim 1, characterized in that: The driving member (32) is connected to the output shaft of the driving motor (31) via a connecting rod (33); a fixing member (34) is provided at the end of the connecting rod (33); the driving member (32) is inserted into the fixing member (34); and the driving member (32) further comprises a fixedly arranged guide member (40); the driving member (32) can rotate until it contacts the guide member (40); the guide member (40) pushes the driving member (32) to gradually approach the gear (21) until the driving member (32) meshes with the gear (21).

3. A quantitative feeding mechanism according to claim 2, characterized in that: A movable cavity (341) is provided inside the fixing member (34), the driving member (32) passes through the movable cavity (341), the tooth (321) is located outside the movable cavity (341), a spring (342) is provided in the movable cavity (341), a limiting ring (323) is provided on the driving member (32), the limiting ring (323) is provided in the movable cavity (341), and two ends of the spring (342) are connected to the limiting ring (323) and the inner wall of the movable cavity (341).

4. A quantitative feeding mechanism according to claim 2, characterized in that: The guide member (40) comprises a guide rail (41), the longitudinal section of the guide rail (41) being a circular arc with a fixed radius, and when the driving member (32) contacts the guide rail (41), the tooth (321) meshes with the gear (21).

5. A quantitative feeding mechanism according to claim 4, characterized in that: The longitudinal section of the guide rail (41) is a minor arc.

6. A quantitative feeding mechanism according to claim 4, characterized in that: It also includes a guide rail (42) arranged at the end of the guide rail (41), the longitudinal section of the guide rail (42) is arc-shaped, the guide rail (42) is tangent to the guide rail (41), and the driving member (32) moves from the guide rail (42) to the guide rail (41).

7. A quantitative feeding mechanism according to claim 3, characterized in that: It also includes an abutment end (322) arranged at the end of the driving member (32), the abutment end (322) and the tooth (321) being arranged at two ends of the driving member (32) respectively, and the abutment end (322) contacts the guide member (40).

8. A quantitative feeding mechanism according to claim 1, characterized in that: A plurality of roller bodies (111) are evenly spaced on the outer circumferential surface of the unloading roller (11), and the roller bodies (111) on the two unloading rollers (11) are staggered.

9. A quantitative feeding mechanism according to claim 8, characterized in that: A plurality of cleaning grooves (51) are arranged on the side wall of the unloading box (50); when the unloading roller (11) rotates, a cleaning brush (52) is arranged on the side wall of the cleaning groove (51), and the end of the roller body (111) passes through the cleaning groove (51).

10. A quantitative feeding mechanism according to claim 1, characterized in that: The unloading roller (11) passes through the unloading box (50), and the transmission assembly (20) and the driving assembly (30) are both arranged outside the unloading box (50).

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