Tooth tip chain material preparation mechanism and tooth tip chain conveying mechanism

Abstract

The utility model discloses a tooth top chain material preparation mechanism and a tooth top chain transmission mechanism. The tooth top chain material preparation mechanism is arranged at a feeding station of the tooth top chain transmission mechanism. The tooth tip chain preparation mechanism comprises a centering push plate mechanism and an overturning pressing mechanism which are oppositely arranged on the chain frame. The centering push plate mechanism comprises a push plate, a guide column and guide sleeve mechanism and a horizontal push cylinder. The push plate can be driven by the horizontal push cylinder and guided by the guide column and guide sleeve mechanism to horizontally move back and forth in the center direction of the conveying frame. The overturning and pressing mechanism comprises an overturning frame, a pressing wheel and an overturning cylinder. The material pressing wheels are densely arranged on the overturning frame and provided with grooves. And the turnover frame can turn over and is connected with the turnover cylinder. When the overturning frame is overturned to the axis of the material pressing wheel to be horizontal, the position of the groove in the material pressing wheel is matched with the sharp tooth of the tooth-tip chain, so that the material pressing wheel and the sharp tooth of the tooth-tip chain can clamp the sheet material. The sheet stock feeding device is matched with a pressing plate puncturing mechanism to achieve automation of sheet stock feeding.

Description

Technical Field

[0001] This utility model relates to a conveyor mechanism with a toothed conveyor chain. Background Technology

[0002] A toothed chain, also known as a conveyor chain with pointed teeth, is commonly used in leather forming equipment. The chain pierces the edges of the leather, carrying it along with the pointed teeth to achieve the conveying of the leather. There are two methods for conveying leather using a toothed chain: the first is where the conveyor chain supports the leather from below, as disclosed in patent document CN104828472A; the second is where the leather hangs from the conveyor chain, as disclosed in patent document CN106429207A. Regardless of the method, a pressing mechanism is needed to press the edges of the leather into the teeth of the conveyor chain. In the prior art, there are two designs: the first, as in patent document CN205240639U, uses a pressure roller fixed above the transmission gear in conjunction with a front-guided feeding plate mechanism to press the leather into the teeth of the conveyor chain; the second, as in patent document CN208843219U, uses the lifting and lowering of adjustable guide plates to press the leather into the teeth of the conveyor chain. Both of these pressing mechanisms present the problem of material feeding. Before the leather is pierced by the teeth of the conveyor chain, it usually needs to be pre-pierced manually. Then, as the conveyor chain moves, the leather is dragged into the pressing mechanism for further pressing and piercing. Therefore, this processing method under the current technology is only suitable for continuous rolls of leather, and the degree of automation is low for individual sheets. Summary of the Invention

[0003] The problem to be solved by this utility model is the automated feeding of sheet materials in the toothed chain conveyor mechanism.

[0004] To solve the above problems, the present invention adopts the following solution:

[0005] According to this utility model, a toothed chain material preparation mechanism includes chain frames disposed on both sides of a conveyor frame; chain brackets for supporting the toothed chain between sprockets are disposed on the chain frames; a centering push plate mechanism and a flipping pressing mechanism are disposed on both sides of the chain frames; the centering push plate mechanism and the flipping pressing mechanism on the two sides of the chain frames are arranged opposite to each other; the centering push plate mechanism includes a push plate parallel to the chain frame and vertically disposed, a guide post and guide sleeve mechanism, and a flat push cylinder; the push plate is disposed on the chain frame through the horizontally disposed guide post and guide sleeve mechanism and connected to the flat push cylinder, so that the push plate can be driven by the flat push cylinder and guided by the guide post and guide sleeve mechanism to move horizontally towards the center of the conveyor frame. The flipping and pressing mechanism includes a flipping frame, pressing wheels, and a flipping cylinder. The flipping frame is a long, narrow frame that is mounted on the chain frame via a swing shaft, with its length and the axis of the swing shaft parallel to the chain frame. The flipping frame is connected to the flipping cylinder, allowing the flipping frame to swing and flip around its swing shaft under the drive of the flipping cylinder. The pressing wheels are densely arranged on the flipping frame. The pressing wheels have annular grooves along their circumference on their surfaces. When the flipping frame flips to the horizontal position of the axis of the pressing wheels, the grooves on the pressing wheels match the teeth of the toothed chain on the chain support, allowing the pressing wheels and the teeth of the toothed chain to clamp the sheet material.

[0006] Furthermore, according to the toothed chain material preparation mechanism of this utility model, the tilting cylinder is mounted on the chain frame via a first hinge, and the end of its piston rod is connected to the tilting frame via a second hinge.

[0007] Furthermore, according to the toothed chain material preparation mechanism of this utility model, the flat-push cylinder is a pneumatic cylinder.

[0008] Furthermore, according to the toothed chain material preparation mechanism of this utility model, the tilting cylinder is a pneumatic cylinder.

[0009] Furthermore, according to the toothed chain material preparation mechanism of this utility model, the tilting cylinder is a pneumatic cylinder.

[0010] Furthermore, according to the toothed chain material preparation mechanism of this utility model, the surface of the pressure wheel is made of an elastic material.

[0011] Furthermore, according to the toothed chain material preparation mechanism of this utility model, the interval between adjacent pressure rollers on the flipping frame does not exceed 15cm.

[0012] According to the present invention, a toothed chain transmission mechanism includes a conveyor frame and chain frames disposed on both sides of the conveyor frame; a toothed chain is disposed on the chain frame, and the chain frame includes a chain bracket for supporting the toothed chain between sprockets; and the aforementioned toothed chain preparation mechanism is disposed at one end of the conveyor frame.

[0013] The technical effects of this utility model are as follows: This utility model achieves sheet material clamping and transmission by centering the sheet material through the centering push plate mechanism and pressing the edge of the sheet material through the flipping pressing mechanism. Combined with the piercing pressing mechanism to pierce the sheet material, the toothed chain transmission mechanism can achieve fully automated processing in the feeding process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the single-sided centering push plate mechanism and the flipping pressing mechanism in an embodiment of the toothed chain material preparation mechanism.

[0015] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the toothed chain transmission mechanism.

[0016] Figure 3 This is a schematic diagram of the overall structure of the double-sided centering push plate mechanism and the flipping pressing mechanism in an embodiment of the toothed chain material preparation mechanism.

[0017] Figure 4 and Figure 5 This is a side view of the single-sided flipping pressing mechanism in different flipping states of an embodiment of the toothed chain material preparation mechanism.

[0018] Figure 6 This is a schematic diagram of the working principle of the flipping and pressing mechanism during material preparation.

[0019] In the above figures,

[0020] 100 is the chain frame, 11 is the chain bracket, 111 is the locking groove, 12 is the toothed chain, and 121 is the tooth.

[0021] 201 is the loading station, 202 is the intermediate station, 203 is the unloading station, 300 is the toothed chain material preparation mechanism, and 400 is the sheet material piercing and pressing mechanism.

[0022] 2 is the centering push plate mechanism, 21 is the push plate, 211 is the table guide plate, 22 is the guide post and guide sleeve mechanism, 221 is the guide post, 222 is the guide sleeve, and 23 is the flat push cylinder; 3 is the flipping and pressing mechanism, 31 is the flipping frame, 318 is the hinge link, 319 is the swing shaft, 32 is the pressing wheel, 321 is the groove, 33 is the flipping cylinder, 338 is the first hinge, and 339 is the second hinge; 9 is the sheet material. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Figure 2 An example of a toothed chain transport mechanism is provided, including a conveyor frame and chain frames 100 disposed on both sides of the conveyor frame. Toothed chains are mounted on the chain frames 100. (See reference...) Figure 1The chain frame 100 includes a chain bracket 11 for supporting the toothed chain between the sprockets. This toothed chain transmission mechanism conveys sheet material through the toothed chain after it pierces it, performing corresponding sheet material processing according to its conveyed position, forming a sheet material processing assembly line. For example, the sheet material is heated, molded, cooled, demolded, and then unloaded. Based on the sheet material conveying direction of the assembly line, different sections of the toothed chain transmission mechanism are sequentially arranged at a loading station 201, several intermediate stations 202, and an unloading station 203. The loading station 201 is located at the beginning of sheet material conveying at one end of the toothed chain transmission mechanism. The toothed chain transmission mechanism is equipped with a toothed chain preparation mechanism 300 at the loading station 201 and a sheet material piercing and pressing mechanism 400 at the outlet of the loading station 201. After the sheet material piercing and pressing mechanism 400 pierces the edge of the sheet material with the toothed chain teeth, the toothed chain of the toothed chain transmission mechanism can fully carry and drag the sheet material to perform different operations at different stations.

[0025] Reference Figure 1 and Figure 3 The toothed chain material preparation mechanism 300 includes a centering push plate mechanism 2 and a flipping pressing mechanism 3 disposed on the chain frames 100 on both sides of the conveyor frame. That is, there are two centering push plate mechanisms 2 and two flipping pressing mechanisms 3, respectively disposed on the chain frames 100 on both sides. The centering push plate mechanisms 2 and the flipping pressing mechanisms 3 on the chain frames 100 on both sides are arranged opposite each other; that is, the two centering push plate mechanisms 2 are arranged opposite each other, and the two flipping pressing mechanisms 3 are arranged opposite each other.

[0026] The centering pusher mechanism 2 includes a pusher plate 21, a guide post and guide sleeve mechanism 22, and a flat pusher cylinder 23. The pusher plate 21 is a long strip-shaped plate, mounted on the chain frame 100 via several horizontally arranged guide posts and guide sleeve mechanisms 22, with its length parallel to the chain frame 100. Here, "the length of the pusher plate 21 is parallel to the chain frame 100" means that the chain frame 100 is arranged along the conveying direction of the toothed chain transmission mechanism. In other words, the length of the pusher plate 21 is parallel to the conveying direction of the toothed chain transmission mechanism. The pusher plate 21 is vertically positioned, with a horizontal platform guide plate 211 connected to its bottom. The pusher plate 21 and the platform guide plate 211 form an integrated L-shaped structure. The guide post and guide sleeve mechanism 22 includes a guide post 221 and a guide sleeve 222. The guide sleeve 222 is fixed to the chain frame 100, and the guide post 221 passes horizontally through the guide hole of the guide sleeve 222, allowing the guide post 221 to move horizontally relative to the guide sleeve 222. Push plate 21 is connected to the end of guide post 221. Guide post 221 and push plate 21 are perpendicular, that is, guide post 221 is perpendicular to the conveying direction of toothed chain transmission mechanism. Push plate 21 is connected to several flat push cylinders 23. Flat push cylinders 23 can be pneumatic cylinders or hydraulic cylinders, preferably pneumatic cylinders. Thus, push plate 21 can move horizontally back and forth towards the center of the conveyor frame under the drive of flat push cylinders 23 and the guidance of guide post guide sleeve mechanism 22. The simultaneous pushing action of two centering push plate mechanisms 2 can achieve alignment of the sheet material with the center of the conveyor frame.

[0027] Tilting and pressing mechanism 3, refer to Figure 4 and Figure 5 The system includes a tilting frame 31, a pressure roller 32, and tilting cylinders 33. The tilting frame 31 is a long, narrow frame mounted on the chain frame 100 via a swing shaft 319, with its length and the axis of the swing shaft 319 parallel to the chain frame 100. In other words, the tilting frame 31's length and the axis of the swing shaft 319 are parallel to the conveying direction of the toothed chain transmission mechanism, allowing the tilting frame 31 to swing and tilt in a vertical plane perpendicular to the conveying direction of the toothed chain transmission mechanism. Several tilting cylinders 33 are connected to the tilting frame 31. Each tilting cylinder 33 is mounted on the chain frame 100 via a first hinge 338, and the end of its piston rod is connected to a hinge link 318 via a second hinge 339, which in turn connects to the tilting frame 31. Thus, the tilting frame 31, driven by the tilting cylinders 33, can swing and tilt around its swing shaft 319 in a vertical plane perpendicular to the conveying direction of the toothed chain transmission mechanism. The tilting cylinders 33 can be pneumatic or hydraulic cylinders, preferably pneumatic cylinders. The pressure rollers 32 are densely arranged on the tilting frame 31. That is, there are multiple pressure rollers 32 on the tilting frame 31, densely arranged. Here, "densely arranged" means that the interval between adjacent pressure rollers 32 on the tilting frame 31 does not exceed 15cm. (Refer to...) Figure 6The pressure roller 32 is a roller with an annular groove 321 on its circumferential surface. The pressure rollers 32 on the tilting frame 31 are arranged along the length of the tilting frame 31. When the tilting frame 31 is tilted to the horizontal position of the axis of the pressure rollers 32, the position of the groove 321 on each pressure roller 32 matches the tip tooth 121 of the toothed chain 12 on the chain bracket 11, so that the pressure rollers 32 and the tip tooth 121 of the toothed chain 12 can clamp the sheet material 9. The chain bracket 11 is provided with a locking groove 111. The toothed chain 12 on the chain bracket 11 is placed in the locking groove 111, and the locking groove 111 locks the toothed chain 12, thus preventing the toothed chain 12 from falling off the chain bracket.

[0028] The working principle of this embodiment is as follows:

[0029] The flipping and pressing mechanism 3 has two working states: the first is... Figure 4 The pressure state shown is such that the axis of pressure roller 32 is horizontal; the second is... Figure 5 In the open state shown, the pressure roller 32 is away from the chain bracket 11. A liftable platform is provided between the chain frames 100 on both sides of the conveyor frame at the loading station 201. During loading, the robot places the sheet material on this liftable platform. The two-sided centering push plate mechanism 2 pushes the sheet material, aligning the center of the sheet material with the center of the conveyor frame and aligning the two side edges with the teeth 121 of the toothed chain 12 on the chain bracket 11. Then, the liftable platform is lowered to the height of the teeth 121 of the toothed chain 12, so that the two side edges of the sheet material are pressed against the teeth 121 of the toothed chain 12. At this time, the flipping pressure mechanism 3 is in the open state, and the flipping frame 31 and the pressure roller 32 do not obstruct the edges of the sheet material 9 from being placed on the teeth 121 of the toothed chain 12 as the liftable platform descends. Then, the flipping pressure mechanism 3 is activated, causing the pressure roller 32 to flip inward with the flipping frame 31 until its axis is horizontal. At this time, the pointed teeth 121 of the toothed chain 12 are aligned with the groove 321 of the pressure roller 32. The wheel surfaces on both sides of the groove 321 of the pressure roller 32 press against the sheet material 9, achieving clamping of the sheet material 9 by the pressure roller 32 and the pointed teeth 121 of the toothed chain 12. At this time, the pointed teeth 121 of the toothed chain 12 do not pierce the edge of the sheet material 9, but the pressing of the sheet material 9 causes a certain degree of deformation at the edge of the sheet material 9. The deformed sheet material 9 sinks into the groove 321 of the pressure roller 32, so that when the toothed chain 12 moves, the pointed teeth 121 and the sheet material 9 have a considerable frictional force, thereby dragging the sheet material 9 to move horizontally. When the sheet material 9 is dragged horizontally, the pressure roller 32 can roll due to the friction between the wheel surfaces of the pressure roller 32 and the sheet material 9. When the sheet material 9 is clamped and dragged to the outlet of the loading station 201 by the toothed chain 12 and the pressure wheel 32, the sheet material piercing and pressing mechanism 400 performs the piercing operation of the toothed chain teeth on the edge of the sheet material.

[0030] Furthermore, in this embodiment, to enable the pressure roller 32 and the pointed teeth 121 to better clamp the sheet material 9, the surface of the pressure roller 32 is typically made of an elastic material. The elastic material can be, for example, natural rubber, silicone rubber, TPE, or PU.

Claims

1. A toothed chain material preparation mechanism, comprising chain frames disposed on both sides of a conveyor frame; the chain frames are provided with chain supports for supporting the toothed chain between sprockets; characterized in that, Both sides of the chain frame are equipped with a centering push plate mechanism and a tilting pressing mechanism; the centering push plate mechanism and the tilting pressing mechanism on both sides of the chain frame are arranged opposite to each other; the centering push plate mechanism includes a push plate parallel to the chain frame and vertically arranged, a guide post and guide sleeve mechanism, and a flat push cylinder; the push plate is set on the chain frame through the horizontally arranged guide post and guide sleeve mechanism and connected to the flat push cylinder, so that the push plate can move horizontally back and forth towards the center of the conveyor frame under the drive of the flat push cylinder and the guidance of the guide post and guide sleeve mechanism; the tilting pressing mechanism includes a tilting frame, a pressing wheel, and a tilting cylinder; the tilting... The frame is a long, narrow frame, mounted on the chain frame via a swing shaft, with its length and the axis of the swing shaft parallel to the chain frame. The tilting frame is connected to the tilting cylinder, allowing the tilting frame to swing and tilt around its swing shaft under the drive of the tilting cylinder. The pressure rollers are densely arranged on the tilting frame. The pressure rollers have annular grooves along their circumference on their surfaces. When the tilting frame tilts to the horizontal position of the axis of the pressure rollers, the grooves on the pressure rollers match the teeth of the toothed chain on the chain support, allowing the pressure rollers and the teeth of the toothed chain to clamp the sheet material.

2. The toothed chain material preparation mechanism according to claim 1, characterized in that, The tilting cylinder is mounted on the chain frame via a first hinge, and the end of its piston rod is connected to the tilting frame via a second hinge.

3. The toothed chain material preparation mechanism according to claim 1, characterized in that, The push cylinder is a pneumatic cylinder.

4. The toothed chain material preparation mechanism according to claim 1, characterized in that, The tilting cylinder is a pneumatic cylinder.

5. The toothed chain material preparation mechanism according to claim 1, characterized in that, The tilting cylinder is a pneumatic cylinder.

6. The toothed chain material preparation mechanism according to claim 1, characterized in that, The surface of the pressure wheel is made of an elastic material.

7. The toothed chain material preparation mechanism according to claim 1, characterized in that, The spacing between adjacent pressure rollers on the flipping frame shall not exceed 15cm.

8. A toothed chain transmission mechanism, comprising a conveyor frame and chain frames disposed on both sides of the conveyor frame; a toothed chain is disposed on the chain frame, and the chain frame includes a chain bracket for supporting the toothed chain between sprockets; characterized in that, One end of the conveyor frame is provided with a toothed chain material preparation mechanism according to any one of claims 1 to 7.

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