Hot air partition plate adjusting mechanism

Abstract

A hot air partition plate adjusting mechanism comprises a plurality of hot air partition plates, each hot air partition plate comprises an air box and an air baffle arranged on the air outlet side of the air box, adjusting mechanisms are arranged at the two ends of each hot air partition plate respectively, and each adjusting mechanism comprises a width adjusting mechanism and an air baffle adjusting mechanism arranged below the width adjusting mechanism; the width adjusting mechanism comprises a mounting bracket, a screw rod pivoted on the mounting bracket, a guide rod parallel to the screw rod, a nut block which is in threaded connection with the screw rod and is in sliding fit with the guide rod, and a first hand wheel for driving the screw rod; the nut block is connected with the end part of the air box through a first connecting piece; the wind shielding adjusting mechanism comprises chain assemblies arranged on the two sides of the hot air partition plate, a transmission rod in linkage with the two chain assemblies, a lifting rod arranged between the two chain assemblies and a second hand wheel used for driving the chain assembly on one side, and the lifting rod is connected with the wind shielding plate through a second connecting piece. Through the synergistic effect of the width adjusting mechanism and the wind shielding adjusting mechanism, efficient and accurate adjustment is achieved.

Description

Technical Field

[0001] This utility model relates to the field of hot air circulation equipment technology, and in particular to a hot air baffle adjustment mechanism for ovens. Background Technology

[0002] In hot air circulation equipment, hot air baffles are used to form product channels and control hot air distribution. Traditional baffle adjustment methods have the following problems: the adjustment of the windbreak angle and the adjustment of the baffle spacing are not coordinated, affecting the uniformity of the heat field. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a hot air baffle adjustment mechanism, which achieves efficient and precise adjustment through the synergistic effect of the width adjustment mechanism and the windbreak adjustment mechanism.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a hot air baffle adjustment mechanism, comprising several hot air baffles arranged side by side and in parallel, forming a product channel between adjacent hot air baffles. Each hot air baffle includes an air box and a baffle plate disposed on the air outlet side of the air box. Adjustment mechanisms are respectively provided at both ends of the hot air baffle. Each adjustment mechanism includes a width adjustment mechanism and a baffle adjustment mechanism disposed below the width adjustment mechanism. The width adjustment mechanism includes a mounting bracket, a screw pivotally connected to the mounting bracket, a guide rod arranged parallel to the screw, a nut block threaded to the screw and slidingly engaged with the guide rod, and a first handwheel driving the screw. The nut block is connected to the end of the air box through a first connecting member. The baffle adjustment mechanism includes chain assemblies disposed on both sides of the hot air baffle, a transmission rod linking the two chain assemblies, a lifting rod disposed between the two chain assemblies, and a second handwheel for driving one side of the chain assembly. The lifting rod is connected to the baffle plate through a second connecting member. The principle of this invention is as follows: When the width of the product channel needs to be adjusted, rotating the first handwheel drives the screw to rotate, and the nut block slides along the guide rod, causing the air box to move laterally, thus adjusting the spacing. When the air volume of the air box needs to be adjusted, rotating the second handwheel drives the chain assembly, and the chain drives the lifting rod to rise and fall, which in turn drives the baffle plate to rise and fall through the second connecting piece, adjusting the number and position of the air outlets that the baffle plate can block, thus achieving the purpose of air volume adjustment. The adjustment mechanism is located at the end of the hot air baffle, and the width adjustment mechanism is located above the baffle adjustment mechanism. The adjustment mechanism occupies a small volume, is centrally arranged, and is easy to operate.

[0005] As an improvement, the mounting bracket includes a bottom sealing plate, side sealing plates at both ends of the bottom sealing plate, a support rod between the two side sealing plates, and a top sealing plate that cooperates with the bottom sealing plate. The bottom sealing plate, side sealing plates, and top sealing plate form an accommodating space. The bottom sealing plate is provided with an opening slot for the first connecting member to pass through. The support rod, screw, and guide rod are located within the accommodating space.

[0006] As an improvement, the bottom of the support rod is provided with a slide rail, the nut block is connected to the connecting block, and the connecting block is provided with a slider that cooperates with the slide rail.

[0007] As an improvement, the top sealing plate is provided with a scale, and the connecting block is provided with an indicator rod that matches the scale.

[0008] As an improvement, the first connector includes an L-shaped first connecting plate, a second connecting plate, an upper pressure cover, a lower pressure cover, and an L-shaped third connecting plate. One end of the first connecting plate is connected to the connecting block, and the other end of the first connecting plate extends into the opening groove and is connected to one end of the second connecting plate. The other end of the second connecting plate is connected to the upper pressure cover. One end of the third connecting plate is connected to the air box, and the other end of the third connecting plate is located between the lower pressure cover and the upper pressure cover. A buffer pad is also provided between the upper pressure cover and the lower pressure cover. The upper pressure cover and the lower pressure cover are connected by bolts.

[0009] As an improvement, a total of four hot air baffles are provided, with the outer two sides forming one group and the inner two sides forming another group. The two hot air baffles in the same group are driven by the same screw, which is a bidirectional screw, including a first thread section and a second thread section with opposite threads, so that the two hot air baffles in the same group move in opposite directions.

[0010] As an improvement, the chain assembly includes a first sprocket, a second sprocket located above the first sprocket, and a chain. The two ends of the transmission rod are respectively connected to the second sprockets of the two side chain assemblies, and the two ends of the lifting rod are respectively connected to the chains of the two side chain assemblies.

[0011] As an improvement, the second connector includes a connecting rod and a roller. One end of the connecting rod is connected to the wind deflector, and the other end of the connecting rod is provided with a notch. The lifting rod passes through the notch, and the roller is fixed at the opening of the notch.

[0012] The beneficial effects of this utility model compared with the prior art are:

[0013] The adjustment mechanism is located at the end of the hot air baffle, and the width adjustment mechanism is located above the windbreak adjustment mechanism. The adjustment mechanism occupies a small volume, is centrally arranged, and is easy to operate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention.

[0015] Figure 2 Side view of the adjustment mechanism.

[0016] Figure 3 Front view of the adjustment mechanism.

[0017] Figure 4 This is a 3D view of the width adjustment mechanism.

[0018] Figure 5 This is a cross-sectional view of the width adjustment mechanism.

[0019] Figure 6 This is a schematic diagram of the inside of the width adjustment mechanism. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figure 1 , 2 As shown, a hot air baffle adjustment mechanism can be applied in an oven. It includes several hot air baffles 3 arranged side by side and in parallel, forming a product channel between adjacent hot air baffles 3. In this embodiment, a total of four hot air baffles 3 are provided, with the outer two sides forming one group and the inner two sides forming another group. The two hot air baffles 3 in the same group move synchronously in opposite directions. The hot air baffle 3 includes an air box 31 and a baffle 32 provided on the air outlet side of the air box 31. Adjustment mechanisms are provided at both ends of the hot air baffle 3. The adjustment mechanism includes a width adjustment mechanism 1 and a baffle adjustment mechanism 2 provided below the width adjustment mechanism 1.

[0022] like Figures 3 to 6As shown, the width adjustment mechanism 1 includes a mounting bracket, a screw 18 pivotally connected to the mounting bracket, a guide rod 19 parallel to the screw 18, a nut block 10 threadedly connected to the screw 18 and slidingly engaged with the guide rod 19, and a first handwheel 12 driving the screw 18. The mounting bracket includes a bottom sealing plate, side sealing plates at both ends of the bottom sealing plate, a support rod 15 between the two side sealing plates, and a top sealing plate 13 cooperating with the bottom sealing plate. The bottom sealing plate, side sealing plates, and top sealing plate 13 form an accommodating space. The bottom sealing plate has an elongated opening slot. The support rod 15, screw 18, and guide rod 19 are located within the accommodating space. The drive mechanism is housed within the housing of the mounting bracket, which effectively protects the drive mechanism. The drive mechanism can be inspected and repaired after opening the top sealing plate 13. The bottom of the support rod 15 is provided with a slide rail 16. The nut block 10 is connected to the connecting block 116. The connecting block 116 is provided with a slider 17 that cooperates with the slide rail 16. The addition of a sliding component can improve the movement stability of the nut block 10. The screw 18 is a bidirectional screw, which includes a first thread section and a second thread section with opposite threads. The two hot air baffles 3 in the same group move in opposite directions. The first thread section and the second thread section of the bidirectional screw 18 drive the two hot air baffles in the same group to move in opposite directions respectively, synchronously expanding or shrinking the width of the product channels on both sides. The top sealing plate 13 is provided with a scale 131. The connecting block 116 is provided with an indicator rod 14 that cooperates with the scale. The indicator rod 14 is threadedly connected to the connecting block 116 and can indicate the movement position of the nut block 10, making it convenient for operators to confirm the current position of the hot air baffle 3. The nut block 10 is connected to the end of the air box 31 via the first connecting member 11; the first connecting member 11 includes an L-shaped first connecting plate 111, a second connecting plate 112, an upper pressure cover 113, a lower pressure cover 115 and an L-shaped third connecting plate. One end of the first connecting plate 111 is connected to the connecting block 116, and the other end of the first connecting plate 111 extends into the opening groove and is connected to one end of the second connecting plate 112. The other end of the second connecting plate 112 is connected to the upper pressure cover 113. One end of the third connecting plate is connected to the air box 31, and the other end of the third connecting plate is located between the lower pressure cover 115 and the upper pressure cover 113. A buffer pad 114 is also provided between the upper pressure cover 113 and the lower pressure cover 115. The upper pressure cover 113 and the lower pressure cover 115 are connected by bolts.

[0023] like Figure 2 , 3As shown, the wind deflector adjustment mechanism 2 includes chain assemblies on both sides of the hot air baffle 3, a transmission rod 26 linking the two chain assemblies, a lifting rod 27 between the two chain assemblies, and a second handwheel 22 for driving one side of the chain assembly. Each chain assembly includes a first sprocket 23, a second sprocket 24 located above the first sprocket 23, and a chain 25. The two ends of the transmission rod 26 are respectively connected to the second sprockets 24 of the two chain assemblies, and the two ends of the lifting rod 27 are respectively connected to the chains 25 of the two chain assemblies. The transmission rod 26 ensures that the chains 25 on both sides are synchronized, preventing uneven tilting of the wind deflector 32. The lifting rod 27 is connected to the wind deflector 32 via the second connector 21. The second connector 21 includes a connecting rod and a roller. One end of the connecting rod is connected to the wind deflector 32, and the other end of the connecting rod is provided with a notch. The lifting rod 27 passes through the notch. The roller is fixed at the opening of the notch. When the width adjustment mechanism 1 drives the wind box 31 to move laterally, the wind box 31 drives the wind deflector 32 on the side to move laterally synchronously. The wind deflector 32 rolls laterally on the lifting rod 27 with the help of the roller.

[0024] The principle of this invention is as follows: When the width of the product channel needs to be adjusted, rotating the first handwheel 12 drives the screw 18 to rotate, and the nut block 10 slides along the guide rod 19, causing the air box 31 to move laterally, thus achieving spacing adjustment. When the air volume of the air box 31 needs to be adjusted, rotating the second handwheel 22 drives the chain assembly, and the chain drives the lifting rod 27 to rise and fall, which in turn drives the baffle plate 32 to rise and fall through the second connecting piece, adjusting the number and position of the air outlets that the baffle plate 32 can block, thereby achieving the purpose of air volume adjustment. The adjustment mechanism is located at the end of the hot air baffle 3, and the width adjustment mechanism 1 is located above the baffle adjustment mechanism 2. The adjustment mechanism occupies a small volume, is centrally arranged, and is easy to operate.

Claims

1. A hot air baffle adjusting mechanism comprising a plurality of hot air baffles arranged side by side and in parallel, product channels being formed between adjacent hot air baffles, the hot air baffles comprising a wind box and a baffle plate provided on the air outlet side of the wind box, characterized in that: The hot air baffle is provided with adjusting mechanisms at two ends respectively, the adjusting mechanisms include width adjusting mechanisms and wind blocking adjusting mechanisms arranged below the width adjusting mechanisms; the width adjusting mechanism includes a mounting bracket, a screw rod pivotally connected to the mounting bracket, a guide rod arranged in parallel with the screw rod, a nut block threadedly connected with the screw rod and slidably connected with the guide rod, and a first hand wheel for driving the screw rod, the nut block is connected with the end of the wind box through a first connecting piece; the wind blocking adjusting mechanism includes chain assembly arranged at two sides of the hot air baffle, a transmission rod connected with the two chain assemblies, a lifting rod arranged between the two chain assemblies, and a second hand wheel for driving one of the chain assemblies, the lifting rod is connected with the wind blocking plate through a second connecting piece.

2. A hot air baffle adjustment mechanism according to claim 1, wherein: The mounting bracket includes a bottom sealing plate, side sealing plates arranged at two ends of the bottom sealing plate, support rods arranged between the two side sealing plates, and a top sealing plate matched with the bottom sealing plate, the bottom sealing plate, the side sealing plates and the top sealing plate enclose a containing space, the bottom sealing plate is provided with an open slot through which the first connecting piece passes, and the support rods, the screw rod and the guide rod are arranged in the containing space.

3. A hot air baffle adjustment mechanism according to claim 2, wherein: The bottom of the support rod is provided with a sliding rail, the nut block is connected with a connecting block, and the connecting block is provided with a sliding block matched with the sliding rail.

4. A hot air baffle adjustment mechanism according to claim 3, wherein: The top sealing plate is provided with a scale, and the connecting block is provided with an indicating rod matched with the scale.

5. A hot air baffle adjustment mechanism according to claim 3, wherein: The first connecting piece includes an L-shaped first connecting plate, a second connecting plate, an upper pressing cover, a lower pressing cover and an L-shaped third connecting plate, one end of the first connecting plate is connected with the connecting block, the other end of the first connecting plate extends into the open slot and is connected with one end of the second connecting plate, the other end of the second connecting plate is connected with the upper pressing cover, one end of the third connecting plate is connected with the wind box, and the other end of the third connecting plate is arranged between the lower pressing cover and the upper pressing cover, a buffer pad is further arranged between the upper pressing cover and the lower pressing cover, and the upper pressing cover and the lower pressing cover are connected through bolts.

6. A hot air baffle adjustment mechanism according to claim 1, wherein: There are four hot air baffles in total, two on the outside and two on the inside, the two hot air baffles in the same group are driven by the same screw rod, the screw rod is a bidirectional screw rod including first and second thread segments with opposite threads, and the two hot air baffles in the same group move in opposite directions.

7. A hot air baffle adjustment mechanism according to claim 1, wherein: The chain assembly includes a first sprocket, a second sprocket arranged above the first sprocket, and a chain, both ends of the transmission rod are connected with the second sprockets of the two chain assemblies respectively, and both ends of the lifting rod are connected with the chains of the two chain assemblies respectively.

8. A hot air baffle adjustment mechanism according to claim 1, wherein: The second connecting piece includes a connecting rod and a roller, one end of the connecting rod is connected with the wind blocking plate, the other end of the connecting rod is provided with a notch slot, the lifting rod passes through the notch slot, and the roller is fixed at the opening of the open slot.

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