Material conveying device of hot drying oven

Abstract

A material conveying device of a hot drying oven belongs to the technical field of material conveying and comprises a supporting mechanism, a transmission chain wheel mechanism and a driven chain wheel mechanism are arranged at the two ends of the supporting mechanism respectively and connected through a double-row chain, and the double-row chain comprises two chains which are arranged side by side and attached to each other. The double-row chains are supported by the supporting mechanism, the chains attached side by side can be matched more tightly, deviation caused by gaps between the chains is reduced, and therefore transmission stability and precision are improved, the consistent rotating speed and direction can be kept, and transmission errors caused by asynchronism of the chains are reduced. Besides, the two chains attached side by side can share the load in the transmission process together, so that the load borne by each chain is reduced, the bearing capacity of the whole transmission system is improved, due to the fact that the load is dispersed, abrasion of each chain can be correspondingly reduced, the abrasion degree and the aging degree are consistent, and the service life of the chains is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to a hot oven material conveying device. Background Art

[0002] The hot oven is used for the heat shrinkage fixing process of the outer packaging film of finished paper pieces. The original conveying device is a square tube conveyor chain plate. The square tube is connected and fixed to the single row of chains by bolts. The finished paper pieces are transported on pallets. Different pallets have different load-bearing positions on the conveying device. Slight speed differences in the operation of adjacent chains will cause the square tube to break, fall off and damage the conveying device. In severe cases, the misalignment of the square tube will jam the conveying device, causing abnormal shutdown of the equipment.

[0003] At present, double-row sprocket chain heavy-duty conveying devices have appeared (such as publication number CN205045374U). At least two sets of double-row sprockets that transmit each other are provided on the shaft. Each set of double-row sprockets is installed with a double-row chain. The bottom of the double-row chain is supported by a load-bearing flat plate. The goods are directly transported by the chain, eliminating the setting of square tubes and effectively improving its adaptability.

[0004] In the existing double-row chain conveyor device, there is a gap between the two chains of the double-row chain. The two adjacent chains cannot share the load during the transmission process. The load borne by each chain is not effectively reduced, resulting in inconsistent wear and aging of the two adjacent chains, uneven force and poor transmission stability, which affects the load-bearing capacity and service life of the entire transmission system; in addition, the chain contacts the load-bearing plane plate through the side plates on both sides, and there is sliding friction between the side plates and the load-bearing plane plate, which is very easy to be damaged by friction. Utility Model Content

[0005] In order to solve the technical problems of the existing double-row chain conveying device in the above background technology, such as there is a gap between the two chains of the double-row chain, uneven force, poor transmission stability and easy friction damage, the utility model provides a hot oven material conveying device.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides a hot oven material conveying device, including a supporting mechanism, wherein a driving sprocket mechanism and a driven sprocket mechanism are respectively provided at both ends of the supporting mechanism, a plurality of driving sprockets are provided on the driving sprocket mechanism along its axial direction, and a plurality of driven sprockets are provided on the driven sprocket mechanism along its axial direction, the driving sprockets correspond to the driven sprockets one by one, the driving sprockets and the driven sprockets are both double-row sprockets, the driving sprockets and their corresponding driven sprockets are connected by a double-row chain, the double-row chain includes two chains arranged side by side and fitted together, the double-row chain is supported by the supporting mechanism, the two chains fit together, the side-by-side fitted chains can fit more tightly, reduce the deviation caused by the gap between the chains, thereby improving the stability and accuracy of the transmission. , and because the two chains are fitted side by side and rotate synchronously, they can maintain consistent rotation speed and direction, reducing the transmission error caused by chain asynchrony; in addition, the two chains fitted side by side can share the load in the transmission process, so that the load borne by each chain is reduced, thereby improving the carrying capacity of the entire transmission system. Since the load is dispersed, the wear of each chain will be reduced accordingly and the degree of wear and aging will be more consistent, extending the service life of the chain. The middle roller part of the double-row chain is supported by a support mechanism to achieve rolling contact between the double-row chain and the support mechanism. While ensuring effective support, the wear between the double-row chain and the support mechanism is reduced, thereby increasing the service life of the double-row chain.

[0008] Preferably, the transmission sprocket mechanism includes a transmission shaft, several transmission sprockets are fixedly arranged on the transmission shaft, a second bearing is fixedly provided at the middle position of the transmission shaft, the transmission shaft is rotatably connected to the support mechanism through the second bearing, and the transmission shaft is connected to the drive motor for driving the transmission sprocket.

[0009] Preferably, the plurality of transmission sprockets are symmetrically distributed on both sides of the second bearing to ensure uniformity of chain layout.

[0010] Preferably, the driven sprocket mechanism includes a first rotating shaft, and several driven sprockets are rotatably arranged on the first rotating shaft through a first bearing. A fastening ring is fixed on both sides of each driven sprocket to ensure the fixation of the position of the driven sprocket, and the two ends of the first rotating shaft are fixed on the support mechanism by fixing bolts.

[0011] Preferably, a tensioning sprocket mechanism is provided below the driven sprocket mechanism for adjusting the tightness of the double-row chain. The tensioning sprocket mechanism includes a second rotating shaft, on which a plurality of tensioning sprockets are rotatably provided. The plurality of tensioning sprockets are arranged in sequence and spaced apart along the axial direction of the second rotating shaft. A fastening ring is fixed on both sides of each tensioning sprocket to ensure that the position of the tensioning sprocket is fixed. The two ends of the second rotating shaft are fixed to the support mechanism by fixing bolts.

[0012] Preferably, the driving sprocket, the driven sprocket and the tensioning sprocket are all double-row sprockets, each containing two rows of parallel sprocket teeth for engaging with the double-row chain.

[0013] Preferably, the support mechanism includes a frame, and support frames for supporting the driven sprocket mechanism and the tensioning sprocket mechanism are fixedly provided on both sides of the frame. A plurality of support seats are fixedly provided above the frame, and the number of support seats is the same as that of the double-row chains and corresponds one to one. A track is fixedly provided on the support seat, and the middle roller part of the double-row chain is supported by the track to realize rolling contact between the double-row chain and the track.

[0014] Preferably, a pad is fixed on each support seat, and two oppositely arranged tracks are fixed above each pad. The tracks extend along the conveying direction of the material, and the tracks support the middle roller parts of the double-row chains. Each support seat is provided with two tracks, which can support the middle roller parts of the two chains of the double-row chains.

[0015] It can be seen from the above technical solutions that the advantages of the present invention are:

[0016] 1. The double-row chain consists of two chains that are arranged side by side and fit together. The chains that fit together side by side can fit more closely, reducing the deviation caused by the gap between the chains, thereby improving the stability and accuracy of the transmission. Moreover, since the two chains fit together side by side and rotate synchronously, they can maintain a consistent rotation speed and direction, reducing the transmission error caused by the chain being out of sync. In addition, the two chains that fit side by side can share the load during the transmission process, reducing the load borne by each chain, thereby improving the carrying capacity of the entire transmission system. Since the load is dispersed, the wear of each chain will be reduced accordingly and the degree of wear and aging will be more consistent, extending the service life of the chain. The middle roller part of the double-row chain is supported by the track, which reduces friction and increases the service life.

[0017] 2. The middle roller of the double-row chain is supported by the track, which realizes rolling contact between the double-row chain and the track, and eliminates the contact between the support mechanism and the side plates on both sides of the double-row chain. While ensuring effective support, it reduces the wear between the double-row chain and the track and increases the service life of the double-row chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1This is a schematic top view of the structure of a conveying device according to one or more embodiments of the present invention;

[0020] Figure 2 Schematic side view of a chain assembly according to one or more embodiments of the present invention;

[0021] Figure 3 This is a schematic structural diagram of a support mechanism according to one or more embodiments of the present invention;

[0022] Figure 4 Schematic diagram of a partial cross-sectional structure of a driven sprocket mechanism according to one or more embodiments of the present invention;

[0023] Figure 5 Schematic diagram of a partial cross-section structure of a tensioning sprocket mechanism according to one or more embodiments of the present invention;

[0024] Figure 6 Schematic diagram of a partial cross-sectional structure of a transmission sprocket mechanism according to one or more embodiments of the present invention;

[0025] Figure 7 Schematic diagram of the installation structure of the driven sprocket mechanism and the tensioning sprocket mechanism according to one or more embodiments of the present invention;

[0026] Figure 8 This is a schematic diagram of the installation structure of the transmission sprocket mechanism according to one or more embodiments of the present invention;

[0027] The components represented by the reference numerals in the figure are:

[0028] 1. Double-row chain; 2. Drive sprocket; 3. Driven sprocket; 4. Tensioning sprocket; 5. First rotating shaft; 6. Second rotating shaft; 7. Drive shaft; 8. First bearing; 9. Fastening ring; 10. Support seat; 11. Pad; 12. Track; 13. Frame; 14. Mechanical expansion sleeve; 15. Second bearing; 16. Support frame. DETAILED DESCRIPTION

[0029] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0030] In a typical embodiment of the present invention, Figures 1-8As shown, a hot oven material conveying device is proposed, including: a supporting mechanism and a chain assembly, and the chain assembly is arranged on the supporting mechanism.

[0031] like Figure 1 As shown, the chain assembly includes a transmission sprocket mechanism, a driven sprocket mechanism and several double-row chains 1. The transmission sprocket mechanism is arranged at the discharge end of the support mechanism, and the driven sprocket mechanism is arranged at the feed end of the support mechanism. The transmission sprocket mechanism is fixed with several transmission sprockets 2 at intervals along its axial direction, and the driven sprocket mechanism is rotatably provided with several driven sprockets 3 at intervals along its axial direction. The transmission sprockets 2 correspond to the driven sprockets 3 one by one. Both the transmission sprockets 2 and the driven sprockets 3 are double-row sprockets, that is, the transmission sprockets 2 and the driven sprockets 3 are fixed with two rows of parallel sprocket teeth. The transmission sprockets 2 and the corresponding driven sprockets 3 are connected by a double-row chain 1. The double-row chain 1 includes two parallelly arranged The chains are placed side by side and fit together. The chains that fit side by side can fit more tightly, reducing the deviation caused by the gap between the chains, thereby improving the stability and accuracy of the transmission. Moreover, since the two chains fit side by side and rotate synchronously, they can maintain a consistent rotation speed and direction, reducing the transmission error caused by the chain being out of sync. In addition, the two chains that fit side by side can share the load in the transmission process, reducing the load borne by each chain, thereby improving the carrying capacity of the entire transmission system. Since the load is dispersed, the wear of each chain will be reduced accordingly and the degree of wear and aging will be more consistent, extending the service life of the chain.

[0032] It is understandable that in other embodiments, the installation positions of the driving sprocket mechanism and the driven sprocket mechanism may also be interchangeable, and the specific installation positions may be determined according to actual design requirements, and no excessive restrictions are imposed here.

[0033] like Figure 6 、 Figure 8 As shown, the transmission sprocket mechanism includes a transmission shaft 7 and several transmission sprockets 2. The several transmission sprockets 2 are sleeved on the transmission shaft 7 and arranged in sequence along the axial direction of the transmission shaft 7. The transmission sprocket 2 is fixedly connected to the transmission shaft 7 through a mechanical expansion sleeve 14. A second bearing 15 is fixed at the middle position of the transmission shaft 7. The transmission shaft 7 is rotatably connected to the support mechanism through the second bearing 15.

[0034] Both ends of the transmission shaft 7 are spline ends, which are connected to the drive motor through structures such as couplings. Two rows of parallel sprocket teeth are fixedly provided on the outer ring of the transmission sprocket 2 along its axial direction. Each row of sprocket teeth is arranged along the circumferential direction of the transmission sprocket 2 for engaging with the double-row chain 1. Several transmission sprockets 2 are symmetrically distributed on both sides of the second bearing 15.

[0035] like Figure 4As shown, the driven sprocket mechanism includes a first rotating shaft 5 and a plurality of driven sprockets 3. The plurality of driven sprockets 3 are sleeved on the first rotating shaft 5 and arranged in sequence along the axial direction of the first rotating shaft 5. The driven sprockets 3 are rotatably connected to the first rotating shaft 5 through a first bearing 8. Each driven sprocket 3 contains at least one first bearing 8. A fastening ring 9 is fixed on both sides of each driven sprocket 3. The fastening ring 9 is fixed on the first rotating shaft 5 to limit the driven sprocket 3 to prevent the driven sprocket 3 from moving along the axial direction of the first rotating shaft 5 and ensure support stability.

[0036] Both ends of the first rotating shaft 5 are provided with threaded holes so that the first rotating shaft 5 can be fixed to the supporting mechanism by fixing bolts. Two rows of parallel sprocket teeth are fixed along the axial direction of the outer ring of the driven sprocket 3. Each row of sprocket teeth is arranged along the circumferential direction of the driven sprocket 3 for engaging with the double-row chain 1.

[0037] like Figure 2 As shown, the chain assembly further includes a tensioning sprocket mechanism, which is located below the driven sprocket mechanism and is used to tighten the double-row chain 1 to prevent the double-row chain 1 from becoming loose.

[0038] like Figure 5 As shown, the tensioning sprocket mechanism includes a second rotating shaft 6 and several tensioning sprockets 4. The several tensioning sprockets 4 are sleeved on the second rotating shaft 6 and arranged in sequence along the axial direction of the second rotating shaft 6. The tensioning sprocket 4 is rotatably connected to the second rotating shaft 6 through a first bearing 8. Each tensioning sprocket 4 contains at least one first bearing 8. A fastening ring 9 is fixed on both sides of each tensioning sprocket 4. The fastening ring 9 is fixed on the second rotating shaft 6 to limit the tensioning sprocket 4 to prevent the tensioning sprocket 4 from moving axially along the second rotating shaft 6 and ensure support stability.

[0039] Both ends of the second rotating shaft 6 are provided with threaded holes so that the second rotating shaft 6 can be fixed to the supporting mechanism by fixing bolts. The tensioning sprocket 4 is also a double-row sprocket structure. Two rows of parallel sprocket teeth are fixed on the outer ring of the tensioning sprocket 4 along its axial direction. Each row of sprocket teeth is arranged along the circumferential direction of the tensioning sprocket 4 for engaging with the double-row chain 1.

[0040] like Figure 3As shown, the support mechanism includes a support seat 10, a pad 11, a track 12, a frame 13 and a support frame 16. There are several support seats 10, and several support seats 10 are fixed on the top of the frame 13 by welding or the like. Several support seats 10 are arranged in sequence along the width direction of the frame 13 (perpendicular to the material conveying direction). The number of support seats 10 is the same as the number of double-row chains 1 and corresponds one to one. The support seat 10 is located below the double-row chain 1 and parallel to the double-row chain 1 to support the double-row chain 1 and prevent the double-row chain 1 from falling under force and being damaged.

[0041] A pad 11 is welded and fixed above each support seat 10, and two tracks 12 are welded and fixed above each pad 11. The tracks 12 are long strip structures. The two tracks 12 are arranged opposite to each other and extend along the conveying direction of the material to support the middle roller parts of the two chains of the double-row chain 1 to achieve rolling contact between the double-row chain 1 and the tracks 12. While ensuring effective support, the wear between the double-row chain 1 and the tracks 12 is reduced, and the service life of the double-row chain 1 is increased. The width of the track 12 matches the width of the middle roller part of the chain.

[0042] There are two support frames 16, which are fixed on both sides of the frame 13 by welding for the installation of the driven sprocket mechanism and the tensioning sprocket mechanism. Figure 7 As shown, the driven sprocket mechanism and the tensioning sprocket mechanism are arranged up and down, and the driven sprocket mechanism is located above the tensioning sprocket mechanism, wherein the tensioning sprocket mechanism can adjust its position on the support frame 16 according to needs to realize the tensioning work of the double-row chain 1 to adjust the tension and relaxation of the double-row chain 1.

[0043] It can be understood that the position adjustment setting method of the tensioning sprocket mechanism on the support frame 16 is a conventional technical means, such as setting a hole structure on the support frame 16, etc. The specific adjustable setting method can be determined according to actual design requirements, and no excessive restrictions are made here.

[0044] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hot oven material conveying device comprising: The support mechanism is characterized in that a transmission sprocket mechanism and a driven sprocket mechanism are respectively provided at both ends of the support mechanism, a plurality of transmission sprockets (2) are provided on the transmission sprocket mechanism at intervals along its axial direction, and a plurality of driven sprockets (3) are provided on the driven sprocket mechanism at intervals along its axial direction, the transmission sprockets (2) and the driven sprockets (3) correspond to each other one by one, the transmission sprockets (2) and the driven sprockets (3) are both double-row sprockets, the transmission sprockets (2) and the corresponding driven sprockets (3) are connected by a double-row chain (1), the double-row chain (1) includes two chains arranged side by side and fitted together, and the middle roller portion of the double-row chain (1) is supported by the support mechanism.

2. The hot oven material conveying device according to claim 1, characterized in that: The transmission sprocket mechanism comprises a transmission shaft (7), a plurality of transmission sprockets (2) are fixedly arranged on the transmission shaft (7), a second bearing (15) is fixedly arranged at the middle position of the transmission shaft (7), the transmission shaft (7) is rotatably connected to the support mechanism through the second bearing (15), and the transmission shaft (7) is connected to the drive motor.

3. The hot oven material conveying device according to claim 2, characterized in that: A plurality of transmission sprockets (2) are symmetrically distributed on both sides of the second bearing (15).

4. The hot oven material conveying device according to claim 1, characterized in that: The driven sprocket mechanism comprises a first rotating shaft (5), a plurality of driven sprockets (3) are rotatably arranged on the first rotating shaft (5) via a first bearing (8), a fastening ring (9) is fixedly provided on both sides of each driven sprocket (3), and both ends of the first rotating shaft (5) are fixedly arranged on the supporting mechanism via fixing bolts.

5. The hot oven material conveying device according to claim 1, characterized in that: A tensioning sprocket mechanism is provided below the driven sprocket mechanism, and the tensioning sprocket mechanism comprises a second rotating shaft (6), on which a plurality of tensioning sprockets (4) are rotatably provided, and the plurality of tensioning sprockets (4) are sequentially spaced along the axial direction of the second rotating shaft (6), and a fastening ring (9) is fixedly provided on both sides of each tensioning sprocket (4), and both ends of the second rotating shaft (6) are fixed on the supporting mechanism by fixing bolts.

6. The hot oven material conveying device according to claim 5, characterized in that: The driving sprocket (2), the driven sprocket (3) and the tensioning sprocket (4) are all double-row sprockets, each containing two rows of parallel sprocket teeth.

7. The hot oven material conveying device according to claim 1, characterized in that: The support mechanism comprises a frame (13), support frames (16) for supporting a driven sprocket mechanism and a tensioning sprocket mechanism are fixedly provided on both sides of the frame (13), a plurality of support seats (10) are fixedly provided above the frame (13), the number of the support seats (10) being the same as the number of the double-row chains (1) and corresponding to each other, a track (12) being fixedly provided on the support seats (10), and the middle roller portion of the double-row chains (1) is supported by the track (12).

8. The hot oven material conveying device according to claim 7, characterized in that: A pad (11) is fixed on each support seat (10), and two oppositely arranged rails (12) are fixed above each pad (11). The rails (12) extend along the conveying direction of the material, and the rails (12) support the middle roller part of the double-row chain (1).

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