Anti-falling device

Abstract

The invention relates to the technical field of plate-type feeders, in particular to an anti-falling device which comprises a material collecting mechanism, a material conveying mechanism, a material conveying mechanism and a material conveying mechanism, the material collecting mechanism comprises an arc-shaped part and a straight-through part communicated with the arc-shaped part, a limiting groove is formed in the surface of the straight-through part, and the material conveying mechanism further comprises a feeding hopper arranged on the arc-shaped part; the material blocking mechanism comprises a supporting shaft and three material blocking plates which are arranged on the outer wall of the supporting shaft and are distributed in a circumferential mode, a positioning wheel is arranged on the outer wall of the supporting shaft, three limiting side edges which are distributed at equal intervals are arranged on the outer wall of the positioning wheel, conveyed materials are collected through the device firstly, and then after the materials are accumulated to a certain weight, the materials are conveyed to the material blocking mechanism. Discharging is achieved through rotation of the supporting shaft, materials falling on the plate type feeding machine each time are at a constant value, when the material blocking plate rotates, the materials are gradually scattered and fall on the plate type feeding machine, the plate type feeding machine is not prone to being smashed, even feeding operation is achieved, and meanwhile the phenomenon that the materials fall off due to excessive feeding can be avoided through control over the amount.

Description

Technical Field

[0001] The invention relates to the technical field of plate feeders, in particular to an anti-drop device. Background Art

[0002] When the apron feeder receives materials, the baffles arranged on both sides can assist the materials to fall onto the conveying platform. However, due to the uneven falling speed of the materials and the different sizes of the materials, accumulation will occur. When the materials accumulate too much, they are easy to fall from the apron feeder and affect the conveying effect. The falling phenomenon may also occur during the conveying process. The commonly used solution is to raise the baffles on both sides of the feeding end to increase the material aggregation amount and the limiting effect. However, excessive accumulation of materials will affect the conveying effect. At the same time, when more materials fall, the surface of the apron feeder will be deformed, which reduces the service life of the structure. Moreover, as the height of the baffle decreases during forward conveying, the materials will still fall. For this reason, an anti-falling device is proposed, which is arranged at the feeding end of the apron feeder to achieve uniform falling of the materials and avoid the falling of the materials. Summary of the invention

[0003] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0004] Therefore, an object of the present invention is to provide an anti-fall device.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an anti-drop device, comprising:

[0006] A material collecting mechanism, comprising an arc-shaped portion and a straight-through portion connected to the arc-shaped portion, wherein a limiting groove is provided on the surface of the straight-through portion, and further comprising a feeding hopper provided on the arc-shaped portion;

[0007] A material blocking mechanism, comprising a support shaft, and three circumferentially distributed material blocking plates arranged on the outer wall of the support shaft, a positioning wheel is arranged on the outer wall of the support shaft, and three equally spaced limiting side edges are arranged on the outer wall of the positioning wheel;

[0008] The support mechanism comprises a support seat rotatably connected to the support shaft and a fixing seat arranged on the straight-through portion. The support seat is provided with a slide bar, and the outer wall of the slide bar is sleeved with a thick spring.

[0009] As a preferred solution of the anti-drop device of the present invention, the limiting groove includes a lower wide groove and an upper single-sided narrow groove connected to the lower wide groove.

[0010] As a preferred solution of the anti-drop device of the present invention, the outer wall of the positioning wheel is slidably connected to the inner wall of the limiting groove, and the sliding rod passes through the fixing seat and is slidably connected to the fixing seat.

[0011] As a preferred solution of the anti-drop device of the present invention, it further comprises a flapping mechanism arranged on the fixed seat, the flapping mechanism comprises a guide rod slidably arranged on the fixed seat, a support platform is arranged on the guide rod, a plug plate is arranged on the support platform, and a thin spring is sleeved on the outside of the guide rod;

[0012] A protrusion is provided at one end of the guide rod.

[0013] As a preferred solution of the anti-drop device of the present invention, a retaining groove is provided on the fixing seat.

[0014] As a preferred solution of the anti-drop device of the present invention, wherein: the plug plate is slidably arranged on the support platform, a pull rod is arranged on the plug plate, the pull rod and the support platform are slidably connected, and a push spring is arranged on the outer wall of the pull rod.

[0015] As a preferred solution of the anti-drop device of the present invention, it further comprises a top rod arranged on the fixing seat, and the top rod is provided with a chamfered surface;

[0016] The support seat is provided with a slot;

[0017] A triangular block is provided at the end of the support shaft.

[0018] As a preferred solution of the anti-drop device of the present invention, wherein: an inclined surface is provided at one end of the plug plate close to the support seat.

[0019] As a preferred solution of the anti-drop device of the present invention, wherein: the support seat is provided with an extrusion surface;

[0020] The support seat is provided with a limiting sleeve, and the support seat is rotatably connected with the support shaft through the limiting sleeve.

[0021] As a preferred solution of the anti-drop device of the present invention, the three center lines of the triangular block and the center lines of the three baffle plates are staggered.

[0022] The beneficial effects of the anti-drop device of the present invention are as follows: the conveyed material is first collected by the device, and then after accumulating to a certain weight, the material is discharged by rotating the support shaft. The material falling on the plate feeder each time is a constant value. When the baffle plate rotates, the material gradually falls on the plate feeder, and it is not easy to damage the plate feeder, thereby achieving uniform feeding operation. At the same time, by controlling the amount, the phenomenon of material falling caused by excessive feeding can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the anti-fall device.

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the anti-fall device.

[0026] Figure 3 This is a schematic diagram of the structure of the limit slot of the anti-fall device.

[0027] Figure 4 It is a schematic diagram of the side section structure of the anti-fall device.

[0028] Figure 5 It is a structural schematic diagram of the material blocking mechanism of the anti-drop device.

[0029] Figure 6 Schematic diagram of the connection structure of the support mechanism and the flapping mechanism of the anti-fall device.

[0030] Figure 7 It is a schematic diagram of the structure of the support base of the anti-fall device.

[0031] In the figure: 100, material collecting mechanism; 101, arc-shaped portion; 102, straight-through portion; 103, limiting groove; 103a, lower wide groove; 103b, upper single-side narrow groove; 104, feed hopper; 200, material blocking mechanism; 201, support shaft; 202, material blocking plate; 203, positioning wheel; 203a, limiting side; 204, triangular block; 300, support mechanism; 301, support seat; 30 1a, limit sleeve; 301b, stop groove; 301c, slot; 301d, extrusion surface; 302, slide rod; 303, fixed seat; 304, thick spring; 400, slapping mechanism; 401, guide rod; 401a, protrusion; 402, support table; 403, plug plate; 404, thin spring; 405, pull rod; 406, push spring; 500, push rod; 501, chamfered surface. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0035] Example 1, reference Figures 1 to 7 , is the first embodiment of the present invention, which provides an anti-drop device, including:

[0036] The material collecting mechanism 100 includes an arc portion 101 and a straight portion 102 connected to the arc portion 101. The surface of the straight portion 102 is provided with a limiting groove 103. It also includes a feed hopper 104 arranged on the arc portion 101; the material is added into the interior of the material collecting mechanism 100 through the feed hopper 104.

[0037] The material blocking mechanism 200 includes a support shaft 201, and three circumferentially distributed material blocking plates 202 arranged on the outer wall of the support shaft 201. The outer wall of the support shaft 201 is provided with a positioning wheel 203, and the outer wall of the positioning wheel 203 is provided with three equally spaced limiting side edges 203a; the setting of the arc portion 101 can be adapted to the material blocking plate 202, refer to Figure 2 The space formed by the material blocking plate 202 near the feed hopper 104 can be used to receive materials, and the support shaft 201 passes through the limiting groove 103 and out of the material collecting mechanism 100 .

[0038] The support mechanism 300 includes a support seat 301 rotatably connected to the support shaft 201, and a fixed seat 303 arranged on the straight-through portion 102. A sliding rod 302 is provided on the support seat 301, and a coarse spring 304 is sleeved on the outer wall of the sliding rod 302. The support seat 301 is used to support the support shaft 201. The outer wall of the positioning wheel 203 is slidably connected to the inner wall of the limiting groove 103. The sliding rod 302 passes through the fixed seat 303 and is slidably connected to the fixed seat 303. The sliding rod 302 can slide in the fixed seat 303. The coarse spring 304 provides a supporting force so that the support seat 301 has a tendency to move away from the fixed seat 303.

[0039] Specifically, the limiting groove 103 includes a lower wide groove 103a and an upper single-sided narrow groove 103b connected to the lower wide groove 103a.

[0040] In the initial state, refer to Figure 2, the material enters the collecting mechanism 100 through the feed hopper 104, and the material is accumulated above the baffle plate 202. Due to the existence of the limiting side edge 203a and the existence of the upper single-sided narrow groove 103b, the limiting side edge 203a is attached to the inner wall of the upper single-sided narrow groove 103b, so that the rotation of the support shaft 201 can be limited. At this time, after the received material is accumulated on the baffle plate 202, gravity will compress the thick spring 304, thereby causing the support seat 301 to descend, and the slide rod 3 02 slides in the fixed seat 303 until it receives the material of a certain gravity, and then the positioning wheel 203 slides into the lower wide groove 103a. As the width of the lower wide groove 103a increases, the positioning wheel 203 can rotate. As the material particles vary in size, the position accumulated on the baffle plate 202 is not necessarily uniform, so the center of gravity will be skewed, and the support shaft 201 has a tendency to deflect. Through the rotation of the support shaft 201, the material can be moved from the baffle plate 202. When the material blocking plate 202 rotates, the material is discharged. Due to the reduction in material quality, the thick spring 304 pushes the support seat 301 to reset. Since the positioning wheel 203 deflects and the angle of the limiting side edge 203a changes, the positioning wheel 203 cannot slide up into the upper single-sided narrow groove 103b. Until the support shaft 201 rotates 120 degrees, the next limiting side edge 203a and the inner wall of the upper single-sided narrow groove 103b are parallel, and the material has been completely unloaded. If the material is completely unloaded, the support The shaft 201 has not yet rotated to 120 degrees, and the thick spring 304 pushes the support shaft 201 to rise. The limiting side 203a contacts the connection between the upper single-sided narrow groove 103b and the lower wide groove 103a, causing the support shaft 201 to deflect to 120 degrees, making the limiting side 203a and the inner wall of the upper single-sided narrow groove 103b parallel. The elastic force of the thick spring 304 pushes the positioning wheel 203 to slide into the upper single-sided narrow groove 103b, locking the support shaft 201 for the next material reception.

[0041] In summary, the conveyed material is first collected by the device, and then after accumulating to a certain weight, the discharge is realized by the rotation of the support shaft 201. The material falling on the plate feeder each time is a constant value. When the baffle plate 202 rotates, the material gradually falls on the plate feeder, which is not easy to damage the plate feeder, thereby realizing uniform feeding operation. At the same time, by controlling the amount, the phenomenon of material falling caused by excessive feeding can be avoided.

[0042] Example 2, reference Figure 1 to Figure 7, which is the second embodiment of the present invention. Different from the previous embodiment, it also includes a flapping mechanism 400 arranged on the fixed seat 303, and the flapping mechanism 400 includes a guide rod 401 slidably arranged on the fixed seat 303, a support platform 402 is provided on the guide rod 401, and a plug plate 403 is provided on the support platform 402. It also includes a thin spring 404 sleeved on the outside of the guide rod 401, and a protrusion 401a is provided at one end of the guide rod 401 to limit the sliding position of the guide rod 401. The elastic force of the thin spring 404 can make the support platform 402 have a movement tendency toward the support seat 301.

[0043] Specifically, a retaining groove 301 b is provided on the fixing seat 303 .

[0044] By providing the thin spring 404 , when the inserting plate 403 is fitted into the retaining groove 301 b , the thin spring 404 can also support the support seat 301 , thereby improving the bearing capacity of the retaining plate 202 .

[0045] The rest of the structure is the same as that of Example 1.

[0046] Example 3, reference Figure 1 to Figure 7 , which is the third embodiment of the present invention. Different from the previous embodiment, the plug plate 403 is slidably arranged on the support platform 402, and a pull rod 405 is provided on the plug plate 403. The pull rod 405 and the support platform 402 are slidably connected. The outer wall of the pull rod 405 is provided with a push spring 406. The elastic force of the push spring 406 can make the plug plate 403 have a movement tendency to slide toward the support seat 301. The pull rod 405 is arranged through the support platform 402, and the support platform 402 is an L-shaped structure.

[0047] Specifically, it also includes a top rod 500 disposed on the fixing seat 303, and a chamfered surface 501 is provided on the top rod 500;

[0048] The support base 301 is provided with a slot 301 c ; the push rod 500 is arranged relative to the slot 301 c .

[0049] A triangular block 204 is provided at the end of the support shaft 201 .

[0050] Furthermore, an inclined surface is provided at one end of the inserting plate 403 close to the supporting seat 301 .

[0051] The support seat 301 is provided with an extrusion surface 301d;

[0052] A limiting sleeve 301 a is provided on the support seat 301 , and the support seat 301 is rotatably connected to the support shaft 201 via the limiting sleeve 301 a .

[0053] The three center lines of the triangular block 204 and the center lines of the three material blocking plates 202 are staggered.

[0054] The rest of the structure is the same as that of Example 2.

[0055] When in use, if the weight of the material above the baffle plate 202 is in a balanced state, or the force of the center of gravity deviation cannot be deflected due to the existence of friction, the baffle plate 202 will not deflect. Therefore, as the amount of material carried increases, the support seat 301 continues to descend until the push rod 500 is inserted into the slot 301c, and the chamfered surface 501 on the push rod 500 pushes the insert plate 403, causing the insert plate 403 to slide, and the push spring 406 is compressed. After the insert plate 403 slides, it will lose the engagement with the retaining groove 301b, so that the elastic force of the thin spring 404 will cause the support platform 402 to rise toward The triangular block 204 is slapped, and due to the loss of support from the thin spring 404, the coarse spring 304 has insufficient bearing capacity, the support shaft 201 moves downward, and the thin spring 404 pushes the support platform 402 to rise. The force formed by the cooperation between the two can enhance the slapping effect. Since the three center lines of the triangular block 204 and the center lines of the three baffle plates 202 are staggered, when slapping on the triangular block 204, a deflection force can be provided to the support shaft 201. After the support shaft 201 is deflected, the center of gravity of the material on the baffle plate 202 changes. Under the action of the gravity of the material, the support shaft 201 rotates to realize unloading.

[0056] As the material slides down, the gravity on the material blocking mechanism 200 is reduced, so the support seat 301 slides up, and the positioning wheel 203 moves to the connection between the upper single-sided narrow groove 103b and the lower wide groove 103a. In addition, since the material blocking plate 202 is long and the side length of the triangular block 204 is short, the force of the material gravity pushing the support shaft 201 to rotate can be increased. After the support shaft 201 rotates, the triangular block 204 will also rotate to squeeze the insert plate 403, and the elastic force of the thick spring 304 is greater than that of the thin spring 404. Therefore, the elastic force of the thick spring 304 can push up the support seat 301. Under the guidance of the limiting side 203a, the positioning wheel 203 slides into the upper single-sided narrow groove 103b. As the support seat 301 rises, due to the existence of the protrusion 401a, the guide rod 401 cannot rise after rising to a certain position, and squeezes the insert plate 403 through the extrusion surface 301d, causing the insert plate 403 to slide until the support seat 301 slides above the insert plate 403, completing one blanking cycle and preparing for the next blanking cycle.

[0057] In summary, the phenomenon of jamming can be avoided during use.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An anti-drop device, characterized in that: include, A material collecting mechanism (100) comprises an arc-shaped portion (101) and a straight portion (102) connected to the arc-shaped portion (101), a surface of the straight portion (102) being provided with a limiting groove (103), and further comprising a feeding hopper (104) provided on the arc-shaped portion (101); A material blocking mechanism (200), comprising a support shaft (201), and three material blocking plates (202) arranged on the outer wall of the support shaft (201) and distributed in a circumferential manner, the outer wall of the support shaft (201) being provided with a positioning wheel (203), and the outer wall of the positioning wheel (203) being provided with three limiting side edges (203a) distributed at equal intervals; The support mechanism (300) comprises a support seat (301) rotatably connected to the support shaft (201), and a fixed seat (303) arranged on the straight-through portion (102); a sliding rod (302) is arranged on the support seat (301), and a thick spring (304) is sleeved on the outer wall of the sliding rod (302).

2. The anti-drop device according to claim 1, characterized in that: The limiting groove (103) comprises a lower wide groove (103a) and an upper single-sided narrow groove (103b) connected to the lower wide groove (103a).

3. The anti-drop device according to claim 2, characterized in that: The outer wall of the positioning wheel (203) is slidably connected to the inner wall of the limiting groove (103), and the sliding rod (302) passes through the fixing seat (303) and is slidably connected to the fixing seat (303).

4. The anti-drop device according to claim 3, characterized in that: The device also includes a flapping mechanism (400) disposed on the fixed seat (303), the flapping mechanism (400) including a guide rod (401) slidably disposed on the fixed seat (303), a support platform (402) disposed on the guide rod (401), a plug plate (403) disposed on the support platform (402), and a thin spring (404) sleeved on the outside of the guide rod (401); A protrusion (401a) is provided at one end of the guide rod (401).

5. The anti-drop device according to claim 4, characterized in that: The fixing seat (303) is provided with a retaining groove (301b).

6. The anti-drop device according to claim 5, characterized in that: The plug plate (403) is slidably disposed on the support platform (402), a pull rod (405) is disposed on the plug plate (403), the pull rod (405) and the support platform (402) are slidably connected, and a push spring (406) is sleeved on the outer wall of the pull rod (405).

7. The anti-drop device according to claim 6, characterized in that: It also includes a push rod (500) disposed on the fixing seat (303), wherein the push rod (500) is provided with a chamfered surface (501); The support seat (301) is provided with a slot (301c); A triangular block (204) is provided at the end of the support shaft (201).

8. The anti-drop device according to claim 7, characterized in that: An end of the inserting plate (403) close to the supporting seat (301) is provided with an inclined surface.

9. The anti-drop device according to claim 8, characterized in that: The support seat (301) is provided with an extrusion surface (301d); The support seat (301) is provided with a limiting sleeve (301a), and the support seat (301) is rotatably connected to the support shaft (201) via the limiting sleeve (301a).

10. The anti-drop device according to any one of claims 7 to 9, characterized in that: The three center lines of the triangular block (204) and the center lines of the three material blocking plates (202) are arranged in a staggered manner.

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