Material tray and unloading device

Abstract

The present invention relates to a material tray, comprising a base, a support plate and an elastic support member; the base comprises a base body and a discharge part, the base body comprises a bottom surface and an inclined end surface forming a certain angle with the bottom surface, the top of the inclined end surface has a hinged end, the discharge part comprises a plurality of rollers rotatably installed on the inclined end surface, the plurality of rollers are distributed in at least one row on the inclined end surface, and the rollers are used to guide materials downward along the inclined end surface; the support plate comprises a support plate body and a hinged part, the hinged part is connected to one side of the support plate body, the hinged part is hinged to the hinged end, the support plate body is arranged relative to the inclined end surface, and the support plate body is formed with a avoidance groove corresponding to each row of rollers; the elastic support member is installed between the support plate and the base, and is used to elastically support the support plate, which reduces the requirement for the smoothness of the inclined end surface. In addition, due to the arrangement of the support plate and the elastic support member, the control of the discharge can be effectively realized. The present invention also discloses a discharge device having the above-mentioned material tray.

Description

Technical Field

[0001] The invention relates to the technical field of bulk material loading and unloading, and in particular to a material tray and a unloading device. Background Art

[0002] Bulk materials, such as grain, fertilizer, cement, etc., are generally packed in bags for easy transportation. After the production stage and before distribution and transportation, bulk materials are generally palletized and temporarily stored for easy loading. Taking grain as an example, after the grain is harvested and bagged, the bagged grain needs to be palletized and then loaded.

[0003] When loading bulk material bags, a forklift or other lifting mechanism is generally used to deliver the material bags to a high point, and then the material bags are guided down the slope and fall into the truck compartment or stacking point.

[0004] In the prior art, the method of guiding materials on an inclined plane has very high requirements on the inclination angle of the inclined plane. Generally, there must be a large height difference between the top of the inclined plane and the material dropping point in order to achieve inclined plane guiding. This requires the lifting mechanism to have a large lifting space, and has very high requirements on the construction and installation of the lifting mechanism. At the same time, inclined plane guiding requires the surface of the inclined plane to have a very high smoothness, and has very high requirements on the material of the inclined plane, which in turn increases the overall manufacturing cost of the unloading equipment. Summary of the invention

[0005] In view of this, it is necessary to provide a material tray and a unloading device to solve the technical problem of high installation cost during the unloading process of material bags in the prior art.

[0006] The present invention provides a material tray, comprising a base, a support plate and an elastic support member;

[0007] The base comprises a base body and a discharge part, wherein the base body comprises a bottom surface and an inclined end surface which is at a certain angle to the bottom surface, the top of the inclined end surface comprises a hinged end, and the discharge part comprises a plurality of rollers rotatably mounted on the inclined end surface, wherein the plurality of rollers are distributed in at least one row on the inclined end surface, and the rollers are used to guide the material downward along the inclined end surface;

[0008] The support plate comprises a support plate body and a hinged portion, wherein the hinged portion is connected to one side of the support plate body, the hinged portion is hinged to the hinged end, the support plate body is arranged relative to the inclined end surface, and the support plate body is formed with a avoidance groove corresponding to each row of the rollers;

[0009] The elastic support member is installed between the support plate and the base, and is used for elastically supporting the support plate.

[0010] Furthermore, a plurality of pillars are installed on the inclined end face of the seat body, and the plurality of pillars are distributed in at least one row on the inclined end face. A roller is rotatably installed on the upper end of the pillar, and the rotation axis of the roller is parallel to the inclined end face and is arranged perpendicular to the rotation axis of the support plate.

[0011] Furthermore, a mounting groove is formed at the upper end of each of the pillars, and two sides of the roller are respectively rotatably connected to two side walls of the mounting groove.

[0012] Furthermore, the elastic support member is two compression springs installed between the inclined end surface and the support plate body, one end of each compression spring is installed on one side of the seat body, and the other end is installed on the corresponding side of the support plate body.

[0013] The present invention also discloses a unloading device, comprising a lifting mechanism, a blocking member and the material tray as described above, wherein the lifting mechanism is used to drive the material tray to rise or fall, and the blocking member is fixedly arranged above the side of the base away from the hinged end, and is used to push the support plate to rotate toward the side close to the base.

[0014] Furthermore, the two ends of the support plate body on one side away from the hinge part correspond to rotatably installed limit wheels, and the blocking member includes two baffles corresponding to the two sides of the support plate body and vertically arranged, and the spacing between the two baffles is greater than the width of the base and smaller than the width of the support plate body, and the baffles include an extrusion section, a maintaining section and a release section from bottom to top, and the distance the baffles extend toward the side close to the material tray is its thickness, the thickness of the extrusion section gradually increases from bottom to top, the thickness of the maintaining section remains unchanged, and the thickness of the release section gradually decreases from bottom to top, and the projection of the maintaining section in the vertical direction partially overlaps with the limit wheel, but does not intersect with the base body.

[0015] Furthermore, the lifting mechanism includes a vertically installed bracket with a certain height, a sprocket rotatably installed on the upper and lower ends of the bracket, a chain sleeved and transmission connected to the sprocket, and a driving motor that drives the sprocket to rotate, and the chain is provided with a plurality of mounting positions evenly spaced along its circumference, and a locking ear is installed on one side of each base close to the hinged end, and a material tray is installed at each mounting position through the locking ear.

[0016] The material tray provided by the present invention, based on the principle of traditional inclined material guiding, adopts rollers installed on the inclined end surface to guide the material downward, converts traditional sliding friction into rolling friction, reduces the requirement for the smoothness of the inclined end surface, and adopts a support plate to carry the material. During normal transportation, the support plate supports the material bag. When unloading is required, external force is used to compress the support plate to rotate the support plate toward the side close to the base. The avoidance groove and the roller cooperate, and the roller contacts the material bag, so that the material bag can slide down along the inclined end surface. When unloading with the material tray, due to the reduction of friction, the inclined end surface does not require a large height difference to achieve unloading; in addition, due to the provision of the support plate and the elastic support member, the unloading can be effectively controlled.

[0017] The unloading device provided by the present invention drives the material tray to rise and fall through a lifting mechanism, and adopts a blocking member fixed on one side to rotate the support plate to realize unloading. When in use, due to the up and down movement of the material tray, the material bag only needs to be at a very low height when loading, and then the material bag moves up with the tray for unloading. Compared with the unloading method of the prior art, this unloading method does not require the setting of a material guiding slope with a large height difference, realizes automatic unloading, and liberates manpower.

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a material tray according to Embodiment 1 of the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the top view of the material tray;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure of the middle base;

[0022] Figure 4 A schematic structural diagram of a discharging device according to a second embodiment of the present invention;

[0023] Figure 5 for Figure 4 Schematic diagram of the structure of the middle X region;

[0024] Figure 6 It is a schematic diagram of the structure of the material tray in the second embodiment of the present invention. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0026] Embodiment 1

[0027] A material tray 10 comprises a base 1, a support plate 2 and an elastic support member 3.

[0028] The base 1 includes a base body 11 and a discharge portion 12, wherein the base body 1 serves as a mounting base for the entire material tray, and has a bottom surface 11a and an inclined end surface 112 that forms a certain angle with the bottom surface 111, and the top of the inclined end surface 112 has a hinged end 113, and the discharge portion 12 includes a plurality of rollers 121 rotatably mounted on the inclined end surface 112, and the plurality of rollers 121 are distributed in at least one row on the inclined end surface 112, and the rollers 121 are used to guide materials downward along the inclined end surface.

[0029] The support plate 2 includes a support plate body 21 and a hinged portion 22, wherein the hinged portion 22 is connected to one side of the support plate body 21, and the hinged portion 22 is hinged to the hinged end 113. The support plate body 21 is arranged relative to the inclined end surface 112, and the support plate body 21 is formed with an avoidance groove 21a corresponding to each column of the rollers 121.

[0030] It can be understood that in the technical solution of the present application, to reduce the friction between the inclined end surface 112 and the material bag 20, only one row of rollers 121 is needed to achieve it. However, in some embodiments, in order to enable the material bag 20 to slide down the inclined end surface more smoothly, the number of rows of rollers 121 is set to be greater than one row. In the present embodiment, the rollers 121 are arranged in three rows.

[0031] Specifically, a plurality of pillars 122 are installed on the inclined end surface 112 of the base body 11, and the plurality of pillars 122 are distributed in at least one row on the inclined end surface 112. Similarly, corresponding to the above, the pillars 122 are distributed in three rows on the inclined end surface 112; a roller 121 is rotatably installed on the upper end of the pillar 122, and the rotation axis of the roller 121 is parallel to the inclined end surface 112 and is perpendicular to the rotation axis of the support plate 2.

[0032] As a specific installation method of the present application, a mounting groove is formed at the upper end of each of the pillars 122, and two sides of the roller 121 are rotatably connected to two side walls of the mounting groove respectively.

[0033] The elastic support member 3 is installed between the support plate 2 and the base 1 to elastically support the support plate 2 .

[0034] Preferably, the elastic support member 3 is two compression springs installed between the inclined end surface 112 and the support plate body 21 , and one end of each compression spring is installed on one side of the seat body 11 , and the other end is installed on the corresponding side of the support plate body 21 .

[0035] During actual installation, the spring needs to ensure that the support plate 2 does not contact the base 1 after being subjected to the pressure of the material bag 20. At the same time, it should be ensured that the spring does not over-stretch after unloading, causing the support plate to swing significantly, that is, a spring with a relatively large elastic modulus should be selected.

[0036] When the material tray provided in this embodiment is in use, the material bag 20 is placed on the upper end surface of the support plate body 21. The support plate body 21 forms a good support for the material bag 20 under the action of the spring. When it is necessary to unload the material from the material tray, an external force is applied to the support plate body 21 to rotate toward the base body 1. When the external force is large enough, the support plate body 21 rotates toward the side close to the base body 1, and the avoidance groove 21a cooperates with the roller 121. The roller 121 contacts the material bag 20, and the material bag 20 can slide down along the inclined end surface 112.

[0037] Embodiment 2

[0038] like Figure 3 Combined with Figure 1 and Figure 2 As shown, this embodiment provides a material unloading device, including a lifting mechanism 30, a blocking member 40 and the material tray 10 as described above.

[0039] The lifting mechanism 30 is used to drive the material tray 10 to rise or fall, and the blocking member 40 is fixedly disposed above the side of the base 1 away from the hinge end 113 to push the support plate 2 to rotate toward the side close to the base 1.

[0040] The two ends of the support plate body 21 on one side away from the hinge part 22 correspond to the limit wheels 23 that can be rotatably installed respectively, and the blocking member 40 includes two baffles 41 corresponding to the two sides of the support plate body 21 and vertically arranged, and the spacing between the two baffles 41 is greater than the width of the base 1 and smaller than the width of the support plate body 21, and the baffles 41 include an extrusion section 411, a maintaining section 412 and a release section 413 from bottom to top, and the distance that the baffle 41 extends toward the side close to the material tray 10 is taken as its thickness, the thickness of the extrusion section 411 gradually increases from bottom to top, the thickness of the maintaining section 412 remains unchanged, and the thickness of the release section 413 gradually decreases from bottom to top, and the projection of the maintaining section 412 in the vertical direction partially overlaps with the limit wheel 23, but does not intersect with the base body 1.

[0041] The setting of the limiting wheel 23 prevents direct hard collision contact between the blocking member 40 and the support plate body 21, which may cause damage to the support plate body 21 and thus affect its service life. In addition, in actual operation, since the projection of the maintaining section 412 in the vertical direction partially overlaps with the limiting wheel 23, it is ensured that the limiting wheel 23 will inevitably contact the blocking bar 41 when moving upward.

[0042] The specific contact process is as follows: the limiting wheel 23 first abuts against the extrusion section 411. Since the thickness of the extrusion section 411 gradually increases from bottom to top, if the support plate 21 needs to move upward, it will inevitably press down the limiting wheel 23, thereby causing the support plate 21 to rotate toward the side close to the base 1. When the avoidance groove 21a on the support plate 21 cooperates with the roller 121, the roller 121 contacts the material bag 20, and the material bag 20 slides down. At this time, the limiting wheel 23 abuts against the maintaining section 412 of the baffle 41. When the material tray 10 is unloaded, the limiting wheel 23 continues to move upward and passes through the release section 413. Since the thickness of the release section 413 gradually decreases from bottom to top, the support plate is reset under the elastic force of the spring.

[0043] In this embodiment, the lifting mechanism 30 includes a vertically installed bracket 31 with a certain height, a sprocket 32 ​​rotatably installed on the upper and lower ends of the bracket 31, a chain 33 sleeved and transmission connected to the sprocket 32, and a driving motor 33 driving the sprocket 32 ​​to rotate. The chain 33 is provided with a plurality of installation positions evenly spaced along its circumference, and a locking ear 13 is installed on one side of each base 1 close to the hinge end 113, and a material tray 10 is installed at each installation position through the locking ear 13.

[0044] like Figure 3 As shown, when the sprocket 32 ​​rotates counterclockwise, the left part of the chain 33 moves upward, and the right part moves downward, thereby realizing the recycling of the material tray 10 and the continuous transportation of the material.

[0045] When this embodiment is in use, the material drop point is set correspondingly on the left side of the baffle 41, and the drive motor 33 is started. The drive motor 33 drives the sprocket 32 ​​to rotate counterclockwise, and the material tray 10 on the left side rises driven by the chain 33. The limiting wheel 23 on the material tray 10 abuts against the baffle 41, and the support plate body 21 rotates toward the base 1. When the avoidance groove 21a on the support plate body 21 cooperates with the roller 121, the roller 121 contacts the material bag 20, and the material bag 20 slides down, thereby realizing the transportation of the material bag 20.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A discharging device, characterized in that: Including lifting mechanism, blocking parts and material tray, The material tray comprises a base, a support plate and an elastic support member; The base comprises a base body and a discharge part, wherein the base body comprises a bottom surface and an inclined end surface which is at a certain angle to the bottom surface, the top of the inclined end surface comprises a hinged end, and the discharge part comprises a plurality of rollers rotatably mounted on the inclined end surface, wherein the plurality of rollers are distributed in at least one row on the inclined end surface, and the rollers are used to guide the material downward along the inclined end surface; The support plate comprises a support plate body and a hinged portion, wherein the hinged portion is connected to one side of the support plate body, the hinged portion is hinged to the hinged end, the support plate body is arranged relative to the inclined end surface, and the support plate body is formed with a avoidance groove corresponding to each row of the rollers; The elastic support member is installed between the support plate and the base, and is used to elastically support the support plate; The lifting mechanism is used to drive the material tray to rise or fall, and the blocking member is fixedly arranged above the side of the base away from the hinged end, and is used to push the support plate to rotate toward the side close to the base; The two ends of the support plate body on one side away from the hinge part correspond to the limit wheels that can be rotatably installed respectively, and the blocking member includes two blocking bars corresponding to the two sides of the support plate body and arranged vertically, and the spacing between the two blocking bars is greater than the width of the base and smaller than the width of the support plate body, and the blocking bar includes an extrusion section, a maintenance section and a release section from bottom to top, and the distance that the blocking bar extends to the side close to the material tray is its thickness, the thickness of the extrusion section gradually increases from bottom to top, the thickness of the maintenance section remains unchanged, and the thickness of the release section gradually decreases from bottom to top, and the projection of the maintenance section in the vertical direction partially overlaps with the limit wheel, but does not intersect with the seat body; The lifting mechanism includes a vertically mounted bracket with a certain height, sprockets rotatably mounted on the upper and lower ends of the bracket, a chain sleeved and transmission-connected to the sprockets, and a driving motor for driving the sprockets to rotate, the chain is provided with a plurality of mounting positions evenly spaced along its circumference, a locking ear is mounted on one side of each base close to the hinged end, and a material tray is mounted on each mounting position through the locking ear.

2. The unloading device according to claim 1, characterized in that: A plurality of pillars are installed on the inclined end surface of the seat body, and the plurality of pillars are distributed in at least one row on the inclined end surface. A roller is rotatably installed on the upper end of the pillar, and the rotation axis of the roller is parallel to the inclined end surface and is perpendicular to the rotation axis of the support plate.

3. The unloading device according to claim 2, characterized in that: A mounting groove is formed at the upper end of each of the pillars, and two sides of the roller are respectively corresponding to and rotatably connected to two side walls of the mounting groove.

4. The unloading device according to claim 1, characterized in that: The elastic support member is two compression springs installed between the inclined end surface and the support plate body, one end of each compression spring is installed on one side of the seat body, and the other end is installed on the corresponding side of the support plate body.

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