High-frequency vibrating screen device of tunnel furnace

Abstract

The utility model relates to a vibrating screen device, in particular to a high-frequency vibrating screen device of a tunnel furnace. Comprising a rack, adjustable foot cups, lower guide columns, upper guide sleeves, a motor, an eccentric wheel, a sieve plate, a supporting frame, a tightening switch and elastic pieces, the adjustable foot cups are connected to the four corners of the bottom end of the rack in a threaded mode, the lower guide columns are arranged at the four corners of the top end of the rack, the elastic pieces are arranged on the outer sides of the lower guide columns in a sleeving mode, and the upper guide sleeves are connected to the top ends of the elastic pieces. A motor is arranged in the middle of the bottom end of the sieve plate, an eccentric wheel is connected to an output shaft of the motor, the proximal end of the eccentric wheel abuts against the bottom end of the sieve plate, supporting frames are symmetrically arranged on the front side and the rear side of the sieve plate, and tightening switches are slidably connected to the two supporting frames in a bilateral symmetry mode. The sieve plate and the machine frame are connected through the elastic piece, flexible connection between the sieve plate and the machine frame is achieved, the vibration quantity transmitted from the sieve plate to the machine frame is obviously reduced, the operation stability of the whole machine is effectively improved, and the service life of the whole machine is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vibrating screen device, especially a high-frequency vibrating screen device for a tunnel furnace. BACKGROUND

[0002] In the industrial production and food processing, the tunnel furnace is often used for heating, drying or baking products. When the products are discharged from the tunnel furnace, sometimes the product stacking problem occurs, which makes it necessary to have an effective device to realize the separation of the products to ensure the smooth progress of the subsequent processing of the products.

[0003] The existing vibrating screen device is often directly rigidly connected between the vibration source, the screen plate and the rack, which easily causes excessive wear of the equipment, shortens the service life of the equipment, and has a large noise, which affects the working environment. SUMMARY

[0004] In order to overcome the shortcomings of the existing vibrating screen device that the vibration source, the screen plate and the rack are directly rigidly connected, which easily causes excessive wear of the equipment and has a large noise, the utility model aims at: providing a high-frequency vibrating screen device for a tunnel furnace.

[0005] The technical scheme of the utility model is: a high-frequency vibrating screen device for a tunnel furnace, which comprises a rack, an adjustable foot cup, a lower guide column, an upper guide sleeve, a motor, an eccentric wheel, a screen plate, a support frame, a guardrail, a tightening switch and an elastic member, the bottom end of the rack is threadedly connected with the adjustable foot cup at four corners, the top end of the rack is provided with the lower guide column at four corners, the outer side of the lower guide column is sleeved with the elastic member, the top end of the elastic member is connected with the upper guide sleeve, the top end of the upper guide sleeve is connected with the screen plate, the middle of the bottom end of the screen plate is provided with the motor, the output shaft of the motor is connected with the eccentric wheel, the near heart end of the eccentric wheel abuts against the bottom end of the screen plate, the support frame is symmetrically arranged on the front and rear sides of the screen plate, the tightening switch is symmetrically and slidably connected on the two support frames, and the bottom end of the two tightening switches on the same side is connected with the guardrail.

[0006] Further explanation, the upper guide sleeve is a hollow circular tube, the top end is in a sealed state, the lower end is provided with an opening, the size of the opening is matched with the outer diameter of the elastic member, and the top end of the elastic member abuts against the inner top end of the upper guide sleeve.

[0007] Further explanation, the upper part of the lower guide column is a long circular rod, the lower part is a short cylinder, and the diameter of the lower part is much larger than that of the upper part, the diameter of the long circular rod part is matched with the inner diameter of the elastic member, the top end of the long circular rod part extends into the guide sleeve, and does not contact the upper guide sleeve.

[0008] Further explanation, it further comprises a buffer rubber pad, the lower side of the long circular rod part of the lower guide column is sleeved with the buffer rubber pad, the bottom end of the buffer rubber pad contacts the top end of the short cylinder of the lower guide column, and the top end of the buffer rubber pad contacts the elastic member.

[0009] Further illustrate that the top surface of the screen plate is coated with a Teflon coating, and the top end of the screen plate is spaced apart by a small hole.

[0010] Further illustrate that the top front side of the guardrail is provided with a rectangular hole, and the two tightening switches on the front side are located in the rectangular holes on the left and right sides.

[0011] Beneficial effects: 1. By adopting the elastic member to connect the screen plate and the rack, flexible connection between the two is realized, and this design ensures that when the motor drives the eccentric wheel to make the screen plate vibrate, most of the vibration energy is absorbed and buffered by the elastic member, which significantly reduces the vibration amount transmitted from the screen plate to the rack, thereby not only reducing the equipment wear caused by vibration, but also effectively improving the stability and service life of the whole machine operation.

[0012] 2. By adjusting the height of the adjustable foot cup, the height difference between the front and rear sides of the device can be changed, so that the product is more easily slid under the action of gravity, the screen plate surface is treated with a Teflon coating and is processed with a small hole, the friction coefficient is reduced, the contact area with the product is reduced, which is conducive to protecting the integrity of the product, and is especially suitable for processing of sensitive products such as food. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic diagram of the utility model.

[0014] Figure 2 It is a three-dimensional structure schematic diagram of the utility model buffer rubber pad and other components.

[0015] Figure 3 It is a three-dimensional structure schematic diagram of the utility model eccentric wheel and other components.

[0016] Figure 4 It is a three-dimensional structure schematic diagram of the utility model screen plate and other components.

[0017] In the above drawings: 1-rack, 2-adjustable foot cup, 3-lower guide column, 301-buffer rubber pad, 4-upper guide sleeve, 5-motor, 501-eccentric wheel, 6-screen plate, 601-support frame, 7-guardrail, 701-tightening switch, 8-elastic member. DETAILED DESCRIPTION

[0018] The utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which currently preferred embodiments of the utility model are shown. This utility model may, however, be carried out in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and fully convey the scope of the utility model to the skilled person.

[0019] A tunnel furnace high-frequency vibration screen device, likeFigures 1-4 As shown, it comprises rack 1, adjustable foot cup 2, lower guide column 3, upper guide sleeve 4, motor 5, eccentric wheel 501, sieve plate 6, support frame 601, guardrail 7, tightening switch 701 and elastic element 8, four corners of the bottom end of rack 1 are threadedly connected with adjustable foot cup 2, two adjustable foot cups 2 on the front side can be rotated, which can raise or lower the front side of rack 1, four corners of the top end of rack 1 are provided with lower guide column 3, the outer side of lower guide column 3 is sleeved with elastic element 8, the upper part of lower guide column 3 is a long circular rod, the lower part is a short cylinder, and the diameter of the lower part is much larger than that of the upper part, the diameter of the long circular rod part is matched with the inner diameter of elastic element 8, the top end of elastic element 8 is connected with upper guide sleeve 4, upper guide sleeve 4 is a hollow circular tube, the top end is in a sealed state, the lower end is provided with an opening, the size of the opening is matched with the outer diameter of elastic element 8, the top end of elastic element 8 abuts against the inner top end of upper guide sleeve 4, the top end of the long circular rod part of lower guide column 3 extends into the guide sleeve and does not contact upper guide sleeve 4, the top end of upper guide sleeve 4 is connected with sieve plate 6, four elastic elements 8 are support elements of sieve plate 6, lower guide column 3 plays a guiding role on elastic element 8, preventing elastic element 8 from being separated during the up-down movement of sieve plate 6, the top end surface of sieve plate 6 is coated with a Teflon coating, sieve plate 6 is treated with a Teflon coating, which reduces the friction coefficient between sieve plate 6 and the product, the top end of sieve plate 6 is spaced apart with small holes, these small holes reduce the contact area between sieve plate 6 and the product, which is conducive to the product separating from sieve plate 6, the middle of the bottom end of sieve plate 6 is provided with motor 5, the output shaft of motor 5 is connected with eccentric wheel 501, the near heart end of eccentric wheel 501 abuts against the bottom end of sieve plate 6, motor 5 drives eccentric wheel 501 to rotate, thereby making sieve plate 6 reciprocate up and down to produce vibration, support frames 601 are symmetrically arranged on the front and rear sides of sieve plate 6, two tightening switches 701 are symmetrically and slidably connected on the two support frames 601, the bottom end of the two tightening switches 701 on the same side of the left and right sides is connected with guardrail 7, guardrail 7 can protect the product from sliding off from the left and right sides of sieve plate 6 when vibrating, loosening the tightening switches 701 on the front and rear sides can adjust the distance between the two guardrails 7 according to actual needs, the top end of guardrail 7 is provided with a rectangular hole on the front side, and the two tightening switches 701 on the front side are located in the rectangular holes on the left and right sides respectively.

[0020] As shown in Figure 1 and Figure 2 It also includes buffer rubber pad 301, the lower side of the long circular rod part of lower guide column 3 is sleeved with buffer rubber pad 301, the bottom end of buffer rubber pad 301 is in contact with the top end of the short cylinder of lower guide column 3, and the top end of buffer rubber pad 301 is in contact with elastic element 8, buffer rubber pad 301 can reduce the impact of sieve plate 6 vibration on rack 1.

[0021] The high-frequency vibration screen device is installed at the position of the steel belt tunnel furnace discharge or other food transition, the front side of the device is the product feeding end, the rear side is the product discharging end, two adjustable foot cups 2 at the rear side are rotated, the height difference between the front and rear sides of the device is adjusted according to requirements, so that the product can slide downward on the screen plate 6 under the action of gravity, the motor 5 is started (the motor 5 is a vibration source), the screen plate 6 is connected with the motor 5 through bolts, when the motor 5 rotates to drive the eccentric wheel 501 to rotate, the contact surface of the screen plate 6 and the eccentric wheel 501 changes from the near center end of the eccentric wheel 501 to the far center end of the eccentric wheel 501, in this process, the elastic member 8 changes from the initial state to the elongated state, the screen plate 6 is lifted upward, the eccentric wheel 501 continues to rotate, the contact surface of the screen plate 6 and the eccentric wheel 501 changes from the far center end of the eccentric wheel 501 to the near center end of the eccentric wheel 501, the elastic member 8 resets, the elastic member 8 pulls the screen plate 6 to move downward, the near center end and the far center end of the eccentric wheel 501 alternately touch the bottom end of the screen plate 6, so that the screen plate 6 makes regular up-and-down reciprocating motion, the rotation speed of the motor 5 is adjusted, so that the screen plate 6 has a suitable vibration frequency, the product moves from the feeding end to the screen plate 6, the screen plate 6 is not easy to stick to the product due to high-frequency oscillation, and the product and the product are separated, the product moves downward under the action of gravity, and finally leaves the screen plate 6 from the discharging end and enters the rear conveying mechanism (the conveying mechanism is not shown in the figure), the front and rear sides of the tightening switch 701 are loosened, the distance between the rear ends of the two guardrails 7 is adjusted according to actual requirements, and the two tightening switches 701 on the rear support frame 601 are moved to achieve this, in this process, the two tightening switches 701 on the front side slide in the rectangular hole at the top end of the guardrail 7, all the tightening switches 701 are tightened, the guardrail 7 is fixed, so that the guardrail 7 on the support frame 601 cannot move.

[0022] It should be understood that the embodiments are only used to illustrate the present application and not to limit the scope of the present application. In addition, it should be understood that after reading the content taught by the present application, those skilled in the art can make various changes or modifications to the present application, and these equivalent forms also fall within the scope defined by the claims of the present application.

Claims

1. A high frequency shaker tunnel furnace apparatus comprising a frame, characterized by: The adjustable foot cup, the lower guide column, the upper guide sleeve, the motor, the eccentric wheel, the sieve plate, the support frame, the guardrail, the tightening switch and the elastic member are arranged on the rack.

2. A high frequency vibrating screen apparatus for a tunnel furnace as claimed in claim 1, characterised in that: The upper guide sleeve is a hollow circular tube, the top end of which is in a sealed state, and the lower end is provided with an opening, the size of which is matched with the outer diameter of the elastic member, and the top end of the elastic member abuts against the inner top end of the upper guide sleeve.

3. A high frequency vibrating screen apparatus for a tunnel furnace as claimed in claim 2, characterised in that: The upper part of the lower guide column is a long circular rod, and the lower part is a short circular column, and the diameter of the lower part is much larger than that of the upper part, the diameter of the long circular rod part is matched with the inner diameter of the elastic member, the top end of the long circular rod part extends into the guide sleeve, and is not in contact with the upper guide sleeve.

4. A high frequency vibrating screen apparatus for a tunnel furnace as claimed in claim 3, characterised in that: The lower side of the long circular rod part of the lower guide column is sleeved with a buffer rubber pad, the bottom end of the buffer rubber pad is in contact with the top end of the short circular column of the lower guide column, and the top end of the buffer rubber pad is in contact with the elastic member.

5. A high frequency vibrating screen apparatus for a tunnel furnace as claimed in claim 4, characterised in that: The top end surface of the sieve plate is coated with a Teflon coating, and the top end of the sieve plate is spaced apart from the small holes.

6. A high frequency vibrating screen apparatus for a tunnel furnace as claimed in claim 5, characterised in that: The top end of the guardrail is provided with a rectangular hole on the front side, and the two tightening switches on the front side are located in the rectangular holes on the left and right sides respectively.

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