Adjustable conveying table

Abstract

The invention provides an adjustable conveying table, and belongs to the technical field of food processing, the adjustable conveying table comprises a belt conveyor and a plurality of packaging conveying lines stacked up and down, and an adjusting mechanism is arranged on the belt conveyor; a turnover frame is arranged at the discharging end of the belt conveyor, the turnover frame is sleeved with a turnover belt used for bearing steamed stuffed buns, a plurality of supporting rollers abutting against the turnover belt are arranged on the turnover frame, and a transmission assembly is arranged between the supporting rollers and a main shaft of the belt conveyor. A tensioning frame is slidably connected to the discharging end of the belt conveyor through an elastic piece, two tensioning rollers capable of abutting against the inner surface of a turnover belt are arranged at the bottom end of the tensioning frame, and two carrier rollers capable of abutting against the inner surface of a conveying belt in the belt conveyor are arranged at the discharging end of the belt conveyor. The plane where the two carrier rollers are located is parallel to the plane where the two tensioning rollers are located. The steamed stuffed bun transfer device can reduce the probability that steamed stuffed bun is prone to being damaged due to sliding friction in the transfer process.

Description

Technical Field

[0001] The present application relates to the technical field of food processing, and in particular to an adjustable conveying platform. Background Art

[0002] As a traditional food in my country, steamed buns are mainly made of flour, meat or other fillings wrapped in round or semi-circular shapes. In the current steamed bun processing process, belt conveyors are often equipped to complete the turnover and transportation of steamed buns in order to improve the overall efficiency of steamed bun processing.

[0003] However, due to the wide variety of buns, different types of buns should be distinguished during subsequent packaging work, and in order to save space, the subsequent packaging conveyor lines are usually set up in multiple stacks. Therefore, the belt conveyor also needs to have a height adjustment function to transfer the distinguished buns to the appropriate packaging conveyor line, but when the belt conveyor and the packaging conveyor line are connected, there will inevitably be a large gap between the two. When the buns move to the gap, the buns are easily damaged due to their own physical properties.

[0004] Referring to the Chinese patent document with announcement number CN117566319B and announcement date May 14, 2024, entitled "A kind of adjustable conveyor platform device for conveying steamed buns", by setting a gap filling mechanism, the gap existing after the two conveying devices are docked can be supplemented, and the bearing assembly inside the gap filling mechanism receives the steamed buns delivered by the upper conveying equipment, and then the gap filling mechanism transfers the steamed buns on the bearing assembly to the lower conveying equipment, so that the steamed buns can pass through the docking point more safely.

[0005] Referring to the above technical solution, since the bearing assembly inside the gap filling mechanism is in a stationary state when receiving the buns, the buns will slide and rub against the bearing assembly when being transferred from the belt conveyor to the bearing assembly. In this case, the buns may still be damaged, thereby affecting the final production quality of the buns. In addition, as the use cycle increases, flour residue will inevitably appear on the bearing assembly. These residual flours may also hinder the turnover and transportation of the buns and affect the appearance quality of the buns. Moreover, due to the relatively moist condition of the flour used for the buns, it is difficult for conventional scrapers to effectively clean the moist flour. Summary of the invention

[0006] In view of this, the present application provides an adjustable conveying table, which is mainly used to solve the problem that buns may be damaged due to sliding friction during the transfer process.

[0007] In order to solve the above-mentioned technical problems, the present application provides an adjustable conveying platform, including a belt conveyor and a plurality of packaging conveyor lines stacked up and down, and the belt conveyor is provided with an adjustment mechanism for adjusting its own conveying height; a turnover frame is provided at the unloading end of the belt conveyor, a turnover belt for receiving buns is provided on the outer side of the turnover frame, and a plurality of supporting rollers are provided on the turnover frame, which abut against the turnover belt and are used to make the turnover belt match the outer contour of the turnover frame, and a transmission assembly for making the turnover belt rotate around the turnover frame is provided between the supporting rollers and the main shaft of the belt conveyor; the unloading end of the belt conveyor is slidably connected with a tensioning frame through an elastic member, and two tensioning rollers capable of abutting against the inner surface of the turnover belt are provided at the bottom end of the tensioning frame, and two rollers capable of abutting against the inner surface of the inner conveyor belt of the belt conveyor are provided at the unloading end of the belt conveyor, and the plane where the two rollers are located is parallel to the plane where the two tensioning rollers are located, so as to make the outer surface of the turnover belt abut against the outer surface of the inner conveyor belt of the belt conveyor.

[0008] By adopting the above technical solution, using a turnover belt as a turnover component for buns and filling the gap between the belt conveyor and the packaging conveyor line, the probability of buns being damaged can be reduced. At the same time, the turnover belt can also contact the internal conveyor belt of the belt conveyor by friction to complete the cleaning of wet flour.

[0009] Optionally, the frame of the belt conveyor consists of a fixed section and a swing section, and the swing section is hinged at the right end of the fixed section, the unloading end of the belt conveyor is located at the right end of the swing section, and the adjusting mechanism includes a cylinder hinged on the fixed section, and the output end of the cylinder is hinged to the swing section.

[0010] By adopting the above technical solution, the conveying height of the belt conveyor can be changed when the cylinder is extended and retracted.

[0011] Optionally, a pressure roller located below the tensioning roller is provided at the bottom end of the tensioning frame, and the pressure roller can abut against the outer surface of the inner conveyor belt of the belt conveyor to tension the inner conveyor belt of the belt conveyor.

[0012] By adopting the above technical solution, the probability of the conveyor belt inside the belt conveyor becoming loose and affecting the normal conveying work can be reduced.

[0013] Optionally, the transmission assembly includes a driving gear arranged on the main shaft of the belt conveyor, and a driven gear meshing with the driving gear is arranged on the supporting roller abutting against the outer surface of the circulating belt.

[0014] By adopting the above technical solution, the turnover belt can move along with the internal conveyor belt of the belt conveyor under the cooperation of the driving gear and the driven gear.

[0015] Optionally, an auxiliary cleaning piece is provided between the belt conveyor and the tensioning frame for further cleaning flour that may remain on the turnover belt and the inner conveyor belt of the belt conveyor.

[0016] Optionally, the auxiliary cleaning part includes a slag collecting box arranged on the tensioning frame, the slag collecting box is located between the circulating belt and the internal conveyor belt of the belt conveyor, and the slag collecting box is connected to a negative pressure suction pipe that can be connected to an external suction pump, and scrapers are arranged at the open top of the slag collecting box and the unloading end of the belt conveyor, and the two scrapers respectively abut against the outer surfaces of the circulating belt and the internal conveyor belt of the belt conveyor.

[0017] By adopting the above technical solution, the residual flour on the turnover belt can be further cleaned through the cooperation of the scraper and the negative pressure suction tube.

[0018] Optionally, the scraper consists of a knife sleeve and a knife body, and the two knife sleeves are respectively arranged at the top opening of the slag collecting box and the unloading end of the belt conveyor in a hinged form through a torsion spring, and the knife body is slidably connected to the inside of the knife sleeve through a spring.

[0019] By adopting the above technical solution, under the action of the spring, the knife body will always have a tendency to extend toward the outside of the knife sleeve, so that the knife body always abuts against the internal conveyor belt of the turnover belt or belt conveyor, so that the scraper has an adaptive telescopic function.

[0020] Optionally, the turnover frame consists of two parts: a fixed frame and a swing frame, and the swing frame is hinged at the right end of the fixed frame, and a servo motor for rotating the swing frame is provided at the unloading end of the belt conveyor.

[0021] By adopting the above technical solution, after the conveying height adjustment of the belt conveyor is completed, the operation of the servo motor can drive the swing frame to rotate and swing moderately, so that the turnover belt installed on the outside of the turnover frame is deformed along with the turnover frame, so that the unloading end of the turnover belt is closer to the packaging conveyor line, so that the buns can be transferred to the packaging conveyor line more smoothly.

[0022] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects: 1. Use a turnover belt with the same conveying speed as the belt conveyor to fill the gap between the belt conveyor and the packaging conveyor line. This can reduce the impact of sliding friction on the buns during the turnover process, thereby reducing the possibility of buns being damaged. At the same time, the relative friction between the turnover belt and the internal conveyor belt of the belt conveyor can effectively clean the wet flour that may exist on each other's surface, thereby reducing the probability of the appearance quality of the buns being damaged due to the interference of residual flour.

[0023] 2. After the initial cleaning of the flour is completed due to friction between the turnover belt and the internal conveyor belt of the belt conveyor, the flour that may remain on the turnover belt can be further cleaned by scraping with a scraper and negative pressure suction to improve the effect of the flour cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of an adjustable conveyor platform for this application; Figure 2 This is a schematic diagram of the structure of the turnover rack for this application; Figure 3 This is a cross-sectional view of the turnover rack for this application; Figure 4 This is a schematic diagram of the structure of the tensioning frame of this application.

[0025] Explanation of the accompanying drawings: 1. Belt conveyor; 11. Adjustment mechanism; 111. Cylinder; 12. Fixed section; 13. Swinging section; 2. Packaging conveyor line; 3. Turnover frame; 301. Fixed frame; 302. Swinging frame; 303. Servo motor; 31. Turnover belt; 32. Support roller; 33. Transmission assembly; 331. Driving gear; 332. Driven gear; 4. Tensioning frame; 41. Elastic member; 42. Tensioning roller; 43. Support roller; 44. Pressure roller; 5. Auxiliary cleaning part; 51. Slag collecting box; 52. Negative pressure suction pipe; 53. Scraper; 531. Knife sleeve; 532. Knife body. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 4 , the technical solutions of the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0027] Reference Figure 1 This embodiment provides an adjustable conveyor platform, including a belt conveyor 1, a plurality of packaging conveyor lines 2, an adjustment mechanism 11, a turnover mechanism and a cleaning mechanism. The plurality of packaging conveyor lines 2 are arranged in a stacked form, the frame of the belt conveyor 1 is composed of a fixed section 12 and a swing section 13, and the swing section 13 is hinged at the right end of the fixed section 12, and the unloading end of the belt conveyor 1 is located at the right end of the swing section 13; the adjustment mechanism 11 includes a cylinder 111 hinged on the fixed section 12, and the output end of the cylinder 111 is hinged to the swing section 13. When the cylinder 111 is extended and retracted, the swing section 13 will rotate and swing based on its own hinge point, so as to transport the buns to the packaging conveyor line 2 at a suitable height.

[0028] Among them, refer to Figure 2 and Figure 3 The turnover mechanism includes a turnover frame 3, a turnover belt 31, a support roller 32 and a transmission assembly 33. The turnover frame 3 is arranged at the unloading end of the belt conveyor 1, the turnover belt 31 is sleeved on the outside of the turnover frame 3 and is used to receive the buns, and a plurality of support rollers 32 are arranged on the turnover frame 3 and abut against the turnover belt 31, so as to make the turnover belt 31 match the outer contour of the turnover frame 3; the transmission assembly 33 includes a driving gear 331 and a driven gear 332, the driving gear 331 is arranged on the main shaft of the belt conveyor 1, the driven gear 332 is arranged on the support roller 32 that can abut against the outer surface of the turnover belt 31, and the driven gear 332 is meshed with the driving gear 331, so as to make the turnover belt 31 rotate around the turnover frame 3.

[0029] Among them, refer to Figure 2 , Figure 3 and Figure 4 The cleaning mechanism includes a tensioning frame 4, an elastic member 41, two tensioning rollers 42 and two idlers 43. The tensioning frame 4 is slidably connected to the unloading end of the belt conveyor 1 through the elastic member 41, the two tensioning rollers 42 are arranged at the bottom end of the tensioning frame 4 and can abut against the inner surface of the circulating belt 31, the two idlers 43 are arranged at the unloading end of the belt conveyor 1 and can abut against the inner surface of the conveyor belt inside the belt conveyor 1, and the plane where the two idlers 43 are located is parallel to the plane where the two tensioning rollers 42 are located, so as to make the outer surface of the circulating belt 31 abut against the outer surface of the conveyor belt inside the belt conveyor 1.

[0030] In the process of transferring the buns from the belt conveyor 1 to the turnover belt 31, the turnover belt 31 can fill the gap between the belt conveyor 1 and the packaging conveyor line 2, and through the cooperation of the driving gear 331 and the driven gear 332, the turnover belt 31 will run at the same conveying speed as the belt conveyor 1, so as to reduce the influence of the sliding friction on the buns. When the tensioning frame 4 drives the two tensioning rollers 42 to tighten the lower belt body of the turnover belt 31 downward due to the action of the elastic member 41, the turnover belt 31 will gradually approach the inner conveyor belt of the belt conveyor 1 and abut against it under the limiting action of the two rollers 43 on the inner conveyor belt of the belt conveyor 1. With the movement of the turnover belt 31 and the inner conveyor belt of the belt conveyor 1, the two will rub off the wet flour on each other's surface in the form of relative friction, so as to prevent the subsequent buns from being interfered by these residual flour.

[0031] Reference Figure 3 and Figure 4 A pressure roller 44 located below the tensioning roller 42 is provided at the bottom end of the tensioning frame 4, and the pressure roller 44 can abut against the outer surface of the internal conveyor belt of the belt conveyor 1 to tension the internal conveyor belt of the belt conveyor 1.

[0032] When the conveying height of the belt conveyor 1 changes or the internal conveyor belt of the belt conveyor 1 is worn due to long-term friction, the pressure roller 44 can tension the internal conveyor belt of the belt conveyor 1 when following the tensioning frame 4 to move downward, so as to prevent the internal conveyor belt of the belt conveyor 1 from becoming loose and affecting the normal conveying work.

[0033] Reference Figure 3 and Figure 4 An auxiliary cleaning part 5 is provided between the belt conveyor 1 and the tensioning frame 4, and is used to further clean the flour that may remain on the circulating belt 31 and the inner conveyor belt of the belt conveyor 1. The auxiliary cleaning part 5 includes a slag collecting box 51, a negative pressure suction pipe 52 and two scrapers 53. The slag collecting box 51 is provided on the tensioning frame 4 and is located between the circulating belt 31 and the inner conveyor belt of the belt conveyor 1. The negative pressure suction pipe 52 is connected to the slag collecting box 51 and can be connected to an external suction pump. The two scrapers 53 are respectively provided at the top opening of the slag collecting box 51 and the unloading end of the belt conveyor 1, and the two scrapers 53 are respectively in contact with the outer surfaces of the circulating belt 31 and the inner conveyor belt of the belt conveyor 1.

[0034] After the turnover belt 31 and the inner conveyor belt of the belt conveyor 1 rub against each other to complete the preliminary cleaning of the flour, the two scrapers 53 can further clean the flour that may remain on the turnover belt 31 and the inner conveyor belt of the belt conveyor 1, and the cleaned flour on the turnover belt 31 will be concentrated in the slag collecting box 51. Through the cooperation of the external suction pump and the negative pressure suction pipe 52, the flour inside the slag collecting box 51 will be extracted, so as to ensure the cleaning effect while enabling the turnover belt 31 and the inner conveyor belt of the belt conveyor 1 to continue to transport buns.

[0035] Among them, refer to Figure 3 The scrapers 53 are composed of a knife sleeve 531 and a knife body 532, and the two knife sleeves 531 are respectively arranged at the top opening of the slag collecting box 51 and the unloading end of the belt conveyor 1 in a hinged form through a torsion spring, and the knife body 532 is slidably connected to the inside of the knife sleeve 531 through a spring.

[0036] Under the action of the spring, the blade body 532 will always have a tendency to extend outward from the blade sleeve 531, so that the blade body 532 always abuts against the turnover belt 31 or the internal conveyor belt of the belt conveyor 1, so that the scraper 53 has an adaptive telescopic function.

[0037] Reference Figure 2 and Figure 3 The turnover frame 3 is composed of a fixed frame 301 and a swing frame 302, and the swing frame 302 is hinged at the right end of the fixed frame 301. The unloading end of the belt conveyor 1 is provided with a servo motor 303 for rotating the swing frame 302.

[0038] After the conveying height adjustment of the belt conveyor 1 is completed, the operation of the servo motor 303 can drive the swing frame 302 to rotate and swing moderately, so that the turnover belt 31 mounted on the outside of the turnover frame 3 is deformed along with the turnover frame 3, so that the unloading end of the turnover belt 31 is closer to the packaging conveyor line 2, so that the buns can be transferred to the packaging conveyor line 2 more smoothly.

[0039] The implementation principle of an adjustable conveyor platform in the embodiment of the present application is: In the process of transferring the buns from the belt conveyor 1 to the turnover belt 31, the turnover belt 31 can fill the gap between the belt conveyor 1 and the packaging conveyor line 2, and through the cooperation of the driving gear 331 and the driven gear 332, the turnover belt 31 will run at the same conveying speed as the belt conveyor 1, so as to reduce the influence of sliding friction on the buns.

[0040] At the same time, the tensioning frame 4 will drive the two tensioning rollers 42 to tighten the lower belt body of the circulating belt 31 downward due to the action of the elastic member 41. Under the limiting action of the two rollers 43 on the internal conveyor belt of the belt conveyor 1, the circulating belt 31 will gradually approach the internal conveyor belt of the belt conveyor 1 and abut against it. With the movement of the circulating belt 31 and the internal conveyor belt of the belt conveyor 1, the two will rub off the flour on each other's surface in the form of relative friction, so as to prevent the buns transported subsequently from being interfered by the residual flour.

[0041] After the turnover belt 31 and the inner conveyor belt of the belt conveyor 1 rub against each other to complete the preliminary cleaning of the flour, the two scrapers 53 can further clean the flour that may remain on the turnover belt 31 and the inner conveyor belt of the belt conveyor 1, and the cleaned flour on the turnover belt 31 will be concentrated in the slag collecting box 51. Through the cooperation of the external suction pump and the negative pressure suction pipe 52, the flour inside the slag collecting box 51 will be extracted, so as to ensure the cleaning effect while enabling the turnover belt 31 and the inner conveyor belt of the belt conveyor 1 to continue to transport buns.

[0042] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An adjustable conveying platform, comprising a belt conveyor (1) and a plurality of packaging conveying lines (2) stacked up and down, wherein the belt conveyor (1) is provided with an adjusting mechanism (11) for adjusting its conveying height, characterized in that: The belt conveyor (1) is provided with a turnover frame (3) at the unloading end, the turnover frame (3) is provided with a turnover belt (31) for receiving the dumplings on the outside, and the turnover frame (3) is provided with a plurality of support rollers (32) which abut against the turnover belt (31) and are used to make the turnover belt (31) and the outer contour of the turnover frame (3) coincide with each other, and a transmission assembly (33) is provided between the support rollers (32) and the main shaft of the belt conveyor (1) for making the turnover belt (31) rotate around the turnover frame (3); The unloading end of the belt conveyor (1) is slidably connected to a tensioning frame (4) via an elastic member (41); the bottom end of the tensioning frame (4) is provided with two tensioning rollers (42) capable of abutting against the inner surface of the circulating belt (31); the unloading end of the belt conveyor (1) is provided with two rollers (43) capable of abutting against the inner surface of the inner conveyor belt of the belt conveyor (1); and the planes on which the two rollers (43) are located are parallel to the planes on which the two tensioning rollers (42) are located, so as to make the outer surface of the circulating belt (31) abut against the outer surface of the inner conveyor belt of the belt conveyor (1).

2. The adjustable conveyor platform according to claim 1, characterized in that: The frame of the belt conveyor (1) is composed of two parts, a fixed section (12) and a swing section (13), and the swing section (13) is hinged to the right end of the fixed section (12). The unloading end of the belt conveyor (1) is located at the right end of the swing section (13). The adjustment mechanism (11) comprises a cylinder (111) hinged to the fixed section (12), and the output end of the cylinder (111) is hinged to the swing section (13).

3. The adjustable conveyor platform according to claim 1, characterized in that: The bottom end of the tensioning frame (4) is provided with a pressure roller (44) located below the tensioning roller (42), and the pressure roller (44) is capable of abutting against the outer surface of the internal conveyor belt of the belt conveyor (1) to tension the internal conveyor belt of the belt conveyor (1).

4. The adjustable conveying platform according to claim 1, characterized in that: The transmission assembly (33) comprises a driving gear (331) arranged on the main shaft of the belt conveyor (1), and a driven gear (332) meshing with the driving gear (331) is arranged on a support roller (32) abutting against the outer surface of the circulating belt (31).

5. The adjustable conveying platform according to claim 1, characterized in that: An auxiliary cleaning member (5) is provided between the belt conveyor (1) and the tensioning frame (4) for further cleaning flour that may remain on the turnover belt (31) and the inner conveyor belt of the belt conveyor (1).

6. The adjustable conveying platform according to claim 5, characterized in that: The auxiliary cleaning member (5) comprises a slag collecting box (51) arranged on the tensioning frame (4), the slag collecting box (51) being located between the circulating belt (31) and the inner conveyor belt of the belt conveyor (1), and the slag collecting box (51) being connected to a negative pressure suction pipe (52) capable of being connected to an external suction pump, and scrapers (53) are arranged at the open top of the slag collecting box (51) and at the unloading end of the belt conveyor (1), and the two scrapers (53) are respectively in contact with the outer surfaces of the circulating belt (31) and the inner conveyor belt of the belt conveyor (1).

7. The adjustable conveying platform according to claim 6, characterized in that: The scrapers (53) are composed of a blade sleeve (531) and a blade body (532), and the two blade sleeves (531) are respectively arranged at the top opening of the slag collecting box (51) and the unloading end of the belt conveyor (1) in a hinged manner via a torsion spring, and the blade body (532) is slidably connected to the inside of the blade sleeve (531) via a spring.

8. The adjustable conveying platform according to claim 1, characterized in that: The turnover frame (3) is composed of two parts: a fixed frame (301) and a swing frame (302), and the swing frame (302) is hinged at the right end of the fixed frame (301). A servo motor (303) for rotating the swing frame (302) is provided at the unloading end of the belt conveyor (1).

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