Traction device

Abstract

The utility model relates to the technical field of foaming furnaces, in particular to a traction device. The traction device provided by the utility model is used for pulling a foaming product at a furnace inlet end of a foaming furnace into the foaming furnace, and comprises a frame, a driving mechanism and a plurality of conveying rollers, the frame is arranged at the furnace inlet end of the foaming furnace, and the conveying rollers are sequentially arranged at intervals along the length direction of the frame; each conveying roller is rotationally connected with the frame, and the driving mechanism is used for driving the conveying rollers to rotate around the axes of the conveying rollers. The frame is arranged in the buffer area, the conveying rollers are mounted on the frame, and the driving mechanism drives the conveying rollers to rotate around respective axes, so that foaming products in the buffer area are lapped on the conveying rollers to be conveyed in a loose state, and the foaming products are not easy to break when being pulled by the conveying rollers; and the foaming product is not suspended and does not need to be dragged by a worker through a tool, so that the physical power of the worker is saved and the labor is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of foaming furnaces, and particularly relates to a traction device. Background Art

[0002] In the production process of foam plastic products, an extruder extrudes a tubular foaming product. After the tubular foaming product falls onto the transport roller of the plate mold fixing vehicle, it enters the inlet end of the foaming furnace driven by the transport roller in the foaming furnace.

[0003] There is a buffer zone between the plate mold fixing vehicle and the inlet end of the foaming furnace. The foaming products located in the buffer zone are in a relaxed state. When the rotation speed of the transport roller in the inlet end of the foaming furnace is greater than the speed at which the extruder extrudes the foaming product, the length of the suspended and bent (relaxed state) foaming product in the buffer zone becomes shorter, which can prevent the foaming product from being pulled and broken, and thus enable the staff to timely adjust the rotation speed of the transport roller in the inlet end of the foaming furnace accordingly.

[0004] Currently, in order to prevent the length of the suspended foaming product in the buffer zone from being too long, resulting in a large weight of the suspended foaming product and breakage when it enters the inlet end under the pull of the transport roller, generally, the staff needs to hold the foaming product with tools when its length is long, which is very labor-consuming. Summary of the Utility Model

[0005] (1) The problem to be solved by the utility model is: how to prevent the foaming product in the buffer zone from breaking when being pulled into the inlet end of the foaming furnace.

[0006] (2) Technical Solution

[0007] A traction device provided by the utility model is used to traction the foaming product at the inlet end of the foaming furnace into the foaming furnace, and includes a frame, a driving mechanism and a plurality of conveying rollers;

[0008] The frame is installed at the inlet end of the foaming furnace, and the length direction of the frame is the same as the length direction of the foaming furnace;

[0009] Along the length direction of the frame, a plurality of the conveying rollers are arranged at intervals in sequence, and each of the conveying rollers is rotatably connected to the frame. The driving mechanism is used to drive the conveying roller to rotate around its axis;

[0010] The plurality of conveying rollers cooperate to convey the foaming product.

[0011] According to an embodiment of the utility model, the traction device includes an adjusting mechanism. One side of the frame is rotatably connected to the inlet end of the foaming furnace. The adjusting mechanism is installed on the frame, and the adjusting mechanism is used to adjust the included angle between the frame and the horizontal plane.

[0012] According to an embodiment of the present utility model, the frame includes two parallel adjusting plates, and both ends of each conveying roller are respectively rotatably connected to the two adjusting plates;

[0013] The length direction of the adjusting plate is perpendicular to the length direction of the conveying roller.

[0014] According to an embodiment of the present utility model, the adjusting mechanism includes a bidirectional screw, a first connecting rod, and a second connecting rod;

[0015] The first connecting rod and the second connecting rod are respectively arranged at both ends of the bidirectional screw. The first connecting rod and the second connecting rod are respectively provided with a first threaded hole and a second threaded hole near one end of the bidirectional screw, and both ends of the bidirectional screw are respectively screwed into the first threaded hole and the second threaded hole;

[0016] The first connecting rod is rotatably connected to the frame through a first connecting member, and the second connecting rod is rotatably connected to the furnace inlet end of the foaming furnace through a second connecting member.

[0017] According to an embodiment of the present utility model, the first connecting member includes a first connecting block, a first relief groove is provided on the first connecting block, a first connecting shaft is connected in the first relief groove, a first shaft hole is provided at one end of the first connecting rod, and the first connecting shaft is rotatably connected to the first shaft hole.

[0018] According to an embodiment of the present utility model, the second connecting member includes a second connecting block, a second relief groove is provided on the second connecting block, a second connecting shaft is connected in the second relief groove, a second shaft hole is provided at one end of the second connecting rod, and the second connecting shaft is rotatably connected to the second shaft hole.

[0019] According to an embodiment of the present utility model, the driving mechanism includes a transmission assembly;

[0020] The transmission assembly includes a first chain, a plurality of rotating shafts, and a plurality of first sprockets;

[0021] The rotating shaft, the first sprocket, and the conveying roller correspond to each other one by one;

[0022] One end of the conveying roller passes through one of the adjusting plates and is connected to the rotating shaft, and the first sprocket is connected to the rotating shaft;

[0023] The plurality of first sprockets are driven by the first chain.

[0024] According to an embodiment of the present utility model, the transmission assembly includes a limit pin and a snap ring. The rotating shaft is screwed to the first sprocket. A first limit groove is provided on the rotating shaft, and a second limit groove is provided on the first sprocket. One side of the limit pin is located in the first limit groove, and the other side is located in the second limit groove.

[0025] A ring groove is provided at one end of the rotating shaft, and the snap ring for restricting the axial movement of the first sprocket is installed in the ring groove.

[0026] According to an embodiment of the present utility model, the driving mechanism includes a second chain. The first sprocket is a double-row sprocket, and one of the double-row sprockets close to the furnace inlet end of the foaming furnace is drivingly connected to a second sprocket in the foaming furnace through the second chain.

[0027] According to an embodiment of the present utility model, a protective cover for protecting the first sprocket is provided on one side of the adjusting plate.

[0028] Advantages of the present utility model:

[0029] By arranging a frame in the buffer area and installing a plurality of conveying rollers on the frame, and driving the plurality of conveying rollers to rotate around their respective axes by the driving mechanism, the foaming products in the buffer area are conveyed in a slack state on the conveying rollers. When the conveying rollers and the conveying rollers in the foaming furnace rotate to pull the foaming products into the foaming furnace, the foaming products are not easily broken, and the foaming products are not suspended, eliminating the need for workers to use tools to hold them, saving the physical strength of the workers and labor. Description of the Drawings

[0030] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 Is a three-dimensional view of the traction device provided by the embodiment of the present utility model;

[0032] Figure 2 Is a three-dimensional view of the traction device provided by the embodiment of the present utility model after removing the protective cover, the first chain and the second chain;

[0033] Figure 3 Provided by the embodiment of the present utility model Figure 2 Is an enlarged three-dimensional schematic diagram of part A in

[0034] Icons: 1. Conveyor roller; 2. Adjusting plate; 3. Bidirectional screw; 4. First connecting rod; 5. Second connecting rod; 6. First relief groove; 7. First connecting block; 8. First connecting shaft; 9. Second relief groove; 10. Second connecting block; 11. Second connecting shaft; 12. Rotating shaft; 13. First sprocket; 14. First limiting groove; 15. Second limiting groove; 16. Limiting pin; 17. Protective cover. Detailed implementation manners

[0035] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0036] As Figures 1-3 shown, an embodiment of the present utility model provides a traction device for pulling the foamed product at the furnace inlet end of the foaming furnace into the foaming furnace, which includes a frame, a driving mechanism and a plurality of conveyor rollers 1;

[0037] The frame is installed at the furnace inlet end of the foaming furnace, and the length direction of the frame is the same as the length direction of the foaming furnace;

[0038] Along the length direction of the frame, a plurality of conveyor rollers 1 are arranged at intervals in sequence, and each conveyor roller 1 is rotatably connected to the frame. The driving mechanism is used to drive the conveyor roller 1 to rotate around its axis;

[0039] The plurality of conveyor rollers 1 cooperate to convey the foamed product.

[0040] The axis direction of the conveyor roller 1 is perpendicular to the length direction of the foaming furnace.

[0041] By arranging a frame in the buffer area and installing a plurality of conveyor rollers 1 on the frame, and driving the plurality of conveyor rollers 1 to rotate around their respective axes through the driving mechanism, the foamed product in the buffer area is laid on the conveyor rollers 1 in a relaxed state for conveying. When the conveyor roller 1 and the transport roller in the foaming furnace rotate to pull the foamed product, it is not easy to break, and the foamed product does not hang in the air, eliminating the need for workers to hold it with tools, saving the physical strength of the workers and labor.

[0042] Through the provided traction device, the position of the foamed product can be observed before the foamed product enters the furnace inlet end of the foaming furnace. When the position of the foamed product deviates, it can be adjusted in time, and thus the foaming effect of the product is better.

[0043] The traction device further includes an adjustment assembly, which includes a bottom plate and a plurality of cylindrical stop rods. A plurality of cylindrical stop rods are arranged between two adjacent conveying rollers 1. The bottom of the cylindrical stop rod is connected to the bottom plate, and the bottom plate is connected to the frame through a plurality of bolts. The number of cylindrical stop rods is determined according to the number of tubular foamed products. The diameter of the cylindrical stop rod is smaller than the gap between two adjacent conveying rollers 1. A gap for the tubular foamed product to pass through is left between every two adjacent cylindrical stop rods.

[0044] By providing the adjustment assembly, when transporting tubular foamed products, adjacent tubular products are not easily touched, and the transportation is smoother.

[0045] When transporting plate-shaped products, the adjustment assembly can be removed.

[0046] It should be noted that the upper end surface of the conveying roller 1 near the feeding end of the foaming furnace is in the same horizontal plane as the upper end surface of the conveying roller in the feeding end of the foaming furnace.

[0047] Preferably, the conveying roller 1 is cylindrical. The contact area between the upper end surface of the conveying roller 1 and the foamed product is small, and the friction is small, which is more convenient for transporting the foamed product.

[0048] The diameter of the conveying roller 1 is the same as that of the conveying roller, and the rotation speed is the same, so that the foamed products in the buffer zone can be kept in a relaxed state when transporting the foamed products.

[0049] Among them, the length direction of the frame is perpendicular to the axial direction of the conveying roller 1.

[0050] According to an embodiment of the present invention, the traction device includes an adjustment mechanism. One side of the frame is rotatably connected to the feeding end of the foaming furnace. The adjustment mechanism is installed on the frame, and the adjustment mechanism is used to adjust the included angle between the frame and the horizontal plane.

[0051] Preferably, one end of the adjustment mechanism is rotatably connected to the side of the frame away from the feeding end of the foaming furnace, and the other end is rotatably connected to the feeding end of the foaming furnace. The connection part of the adjustment mechanism and the feeding end of the foaming furnace is lower than the connection part of the frame and the feeding end of the foaming furnace.

[0052] According to the height of the conveying roller in the sheet metal die cart for docking, adjust the angle of the adjustment frame. Specifically, when the height of the conveying roller in the sheet metal die cart is relatively high, the side of the adjustment frame away from the foaming furnace is higher than the other side, which is better for transporting the foamed product.

[0053] According to an embodiment of the present invention, the frame includes two parallel adjustment plates 2. Both ends of each conveying roller 1 are rotatably connected to the two adjustment plates 2 respectively;

[0054] The length direction of the adjustment plate 2 is perpendicular to the length direction of the conveying roller 1. The adjustment plate 2 is rotatably connected to the feeding end of the foaming furnace.

[0055] Certainly, in this embodiment, the frame can also be a rectangular frame. At this time, the upper end surface of the conveying roller 1 is higher than the upper end surface of the frame. Its purpose does not deviate from the design concept of the present utility model. Therefore, it should fall within the protection scope of the present utility model.

[0056] According to an embodiment of the present utility model, the adjusting mechanism includes a bidirectional screw 3, a first connecting rod 4, and a second connecting rod 5;

[0057] The first connecting rod 4 and the second connecting rod 5 are respectively arranged at both ends of the bidirectional screw 3. The ends of the first connecting rod 4 and the second connecting rod 5 close to the bidirectional screw 3 are respectively provided with a first threaded hole and a second threaded hole. The two ends of the bidirectional screw 3 are respectively screwed into the first threaded hole and the second threaded hole;

[0058] The first connecting rod 4 is rotatably connected to the frame through a first connecting member, and the second connecting rod 5 is rotatably connected to the furnace inlet end of the foaming furnace through a second connecting member.

[0059] According to an embodiment of the present utility model, the first connecting member includes a first connecting block 7. A first relief groove 6 is provided on the first connecting block 7. A first connecting shaft 8 is connected in the first relief groove 6. A first shaft hole is provided at one end of the first connecting rod 4. The first connecting shaft 8 is rotatably connected to the first shaft hole.

[0060] According to an embodiment of the present utility model, the second connecting member includes a second connecting block 10. A second relief groove 9 is provided on the second connecting block 10. A second connecting shaft 11 is connected in the second relief groove 9. A second shaft hole is provided at one end of the second connecting rod 5. The second connecting shaft 11 is rotatably connected to the second shaft hole, that is, the second connecting shaft 11 is rotatably connected in the second shaft hole.

[0061] Furthermore, the first connecting rod 4 includes a square tube and a circular plate connected to each other. The circular plate is provided with a first threaded hole. One end of the bidirectional screw 3 is screwed into the first threaded hole and partially enters the square tube. Since the inner diameter of the square tube is larger than the diameter of the first connecting rod 4, it does not affect the movement of the first connecting rod 4.

[0062] The bidirectional screw 3 means that its two ends are provided with threads in opposite directions. An external hexagonal column is fixedly provided at the middle position of the bidirectional screw 3. By turning the external hexagonal column, the first connecting rod 4 and the second connecting rod 5 can approach or move away from each other, thereby changing the included angle between the adjusting frame and the horizontal plane.

[0063] Of course, in this embodiment, the adjusting mechanism can also be in other forms. For example, the adjusting mechanism includes a first lead screw, a first ring rod, a first mounting block, and a second mounting block. The first lead screw is screwed to the first ring rod. One end of the first lead screw is rotatably connected to the first mounting block through a first bearing. One end of the first ring rod is connected to the second mounting block. The first mounting block is rotatably connected to the frame, and the second mounting block is rotatably connected to the furnace inlet end of the foaming furnace. A handle is fixedly connected to the first lead screw. By turning the handle, the first lead screw is driven to rotate, thereby changing the length of the first lead screw entering the first ring rod and adjusting the angle between the frame and the horizontal plane. Its gist does not deviate from the design concept of the present invention. Therefore, it should fall within the protection scope of the present invention.

[0064] According to an embodiment of the present invention, the driving mechanism includes a transmission component;

[0065] The transmission component includes a first chain, a plurality of rotating shafts 12, and a plurality of first sprockets 13;

[0066] The rotating shafts 12, the first sprockets 13, and the conveying rollers 1 correspond to each other one by one;

[0067] One end of the conveying roller 1 passes through one of the adjusting plates 2 and is connected to the rotating shaft 12, and the first sprocket 13 is connected to the rotating shaft 12;

[0068] The plurality of first sprockets 13 are driven by the first chain.

[0069] For each set of correspondingly arranged rotating shafts 12, the axes of the first sprockets 13, and the axes of the conveying rollers 1 coincide.

[0070] According to an embodiment of the present invention, the transmission component includes a limit pin 16 and a snap ring. The rotating shaft 12 is screwed to the first sprocket 13. A first limit groove 14 is provided on the rotating shaft 12, and a second limit groove 15 is provided on the first sprocket 13. One side of the limit pin 16 is located in the first limit groove 14, and the other side is located in the second limit groove 15;

[0071] A ring groove is provided at one end of the rotating shaft 12, and a snap ring for restricting the first sprocket 13 from moving axially along it is installed in the ring groove.

[0072] By providing the limit pin 16, the first sprocket 13 and the rotating shaft 12 can be easily disassembled and replaced, and the first sprocket 13 can be rotated synchronously with the rotating shaft 12, thereby driving the conveying roller 1 to rotate.

[0073] By providing the snap ring, after the first sprocket 13 is installed on the rotating shaft 12, the first sprocket 13 can be restricted from loosening and detaching from the rotating shaft 12.

[0074] Of course, in this embodiment, the first sprocket 13 and the rotating shaft 12 can also be welded.

[0075] According to an embodiment of the present utility model, the drive mechanism includes a second chain. The first sprocket 13 is a double-row sprocket. One of the double-row sprockets near the furnace inlet end of the foaming furnace is drivingly connected to the second sprocket in the foaming furnace through the second chain.

[0076] A drive motor, a second sprocket, a plurality of third sprockets and a plurality of conveying rollers are arranged in the foaming furnace;

[0077] The second sprocket is coaxially arranged with one of the third sprockets near the traction device. The plurality of conveying rollers are rotatably connected to the side wall of the foaming furnace. The second sprocket is drivingly connected to the plurality of third sprockets through a third chain. The drive motor drives the second sprocket to rotate, and then the plurality of conveying rollers rotate around their respective axes.

[0078] By setting the first sprocket 13 as a double-row sprocket, one row of sprockets in one of the first sprockets 13 near the furnace inlet end of the foaming furnace is drivingly connected to the remaining first sprockets 13 through the first chain, and the other row of sprockets is drivingly connected to the second sprocket through the second chain. Since a drive motor for driving the second sprocket to rotate is arranged in the foaming furnace, the plurality of conveying rollers 1 can be synchronously rotated under the action of the drive motor in the foaming furnace, so that the rotational speeds of the conveying rollers in the foaming furnace and the plurality of conveying rollers 1 in the traction device are the same, preventing the occurrence of situations such as stacking or breaking of the foamed products due to different rotational speeds.

[0079] Certainly, in this embodiment, the drive mechanism can also be in other forms. The drive mechanism includes a servo motor, and the output end of the servo motor is fixedly connected to one of the first sprockets 13.

[0080] The servo motor rotates, drives one of the first sprockets 13 fixedly connected to its output end to rotate, and drives the plurality of first sprockets 13 to rotate around their respective axes simultaneously through the first chain. Then the plurality of conveying rollers 1 rotate, and the foamed products are pulled into the foaming furnace. It should be noted that the opening and closing as well as the rotational speed of the servo motor are exactly the same as those of the drive motor of the foaming furnace.

[0081] According to an embodiment of the present utility model, a protective cover 17 for protecting the first sprocket 13 is arranged on one side of the adjusting plate 2.

[0082] The arrangement of the protective cover 17 can protect the first chain and the first sprocket 13, prevent foreign objects from entering and affecting the use, and improve the service life.

[0083] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0084] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, 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 an indirect connection through an intermediate medium, and it can be the connection inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, in the description of the present utility model, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0085] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A traction device for pulling the foaming products at the inlet end of the foaming furnace into the foaming furnace, characterized in that, It includes a frame, a driving mechanism and a plurality of conveying rollers (1); The frame is installed at the furnace inlet end of the foaming furnace, and the length direction of the frame is the same as that of the foaming furnace; Along the length direction of the frame, the plurality of conveying rollers (1) are arranged at intervals in sequence, and each conveying roller (1) is rotatably connected to the frame, and the driving mechanism is used to drive the conveying roller (1) to rotate around its axis; The plurality of conveying rollers (1) cooperate to convey the foaming products.

2. The traction device according to claim 1, wherein The traction device includes an adjusting mechanism. One side of the frame is rotatably connected to the furnace inlet end of the foaming furnace. The adjusting mechanism is installed on the frame, and the adjusting mechanism is used to adjust the included angle between the frame and the horizontal plane.

3. The traction device according to claim 2, characterized in that, The frame includes two parallel adjusting plates (2), and both ends of each conveying roller (1) are respectively rotatably connected to the two adjusting plates (2); The length direction of the adjusting plate (2) is perpendicular to the length direction of the conveying roller (1).

4. A traction device according to claim 2, characterized in that, The adjusting mechanism includes a bidirectional screw (3), a first connecting rod (4) and a second connecting rod (5); The first connecting rod (4) and the second connecting rod (5) are respectively arranged at both ends of the bidirectional screw (3). The first connecting rod (4) and the second connecting rod (5) are respectively provided with a first screw hole and a second screw hole near one end of the bidirectional screw (3). Both ends of the bidirectional screw (3) are respectively screwed into the first screw hole and the second screw hole; The first connecting rod (4) is rotatably connected to the frame through a first connecting piece, and the second connecting rod (5) is rotatably connected to the furnace inlet end of the foaming furnace through a second connecting piece.

5. A traction device according to claim 4, characterized in that, The first connecting piece includes a first connecting block (7). A first relief groove (6) is formed in the first connecting block (7). A first connecting shaft (8) is connected in the first relief groove (6). A first shaft hole is formed at one end of the first connecting rod (4), and the first connecting shaft (8) is rotatably connected to the first shaft hole.

6. A traction device according to claim 4, characterized in that, The second connecting piece includes a second connecting block (10). A second relief groove (9) is formed in the second connecting block (10). A second connecting shaft (11) is connected in the second relief groove (9). A second shaft hole is formed at one end of the second connecting rod (5), and the second connecting shaft (11) is rotatably connected to the second shaft hole.

7. The traction device according to claim 3, characterized in that, The driving mechanism includes a transmission component; The transmission component includes a first chain, a plurality of rotating shafts (12) and a plurality of first sprockets (13); The rotating shafts (12), the first sprockets (13) and the conveying rollers (1) are in one-to-one correspondence; One end of the conveying roller (1) passes through one of the adjusting plates (2) and is connected to the rotating shaft (12), and the first sprocket (13) is connected to the rotating shaft (12); The plurality of first sprockets (13) are driven by the first chain.

8. A traction device according to claim 7, characterized in that, The transmission assembly includes a limit pin (16) and a circlip. The rotating shaft (12) is screwed to the first sprocket (13). A first limit groove (14) is formed on the rotating shaft (12), and a second limit groove (15) is formed on the first sprocket (13). One side of the limit pin (16) is located in the first limit groove (14), and the other side is located in the second limit groove (15). A ring groove is formed at one end of the rotating shaft (12), and the circlip for restricting the axial movement of the first sprocket (13) is installed in the ring groove.

9. A traction device according to claim 7, characterized in that, The drive mechanism includes a second chain. The first sprocket (13) is a double-row sprocket, and one of the double-row sprockets close to the furnace inlet end of the foaming furnace is in transmission connection with a second sprocket in the foaming furnace through the second chain.

10. A traction device according to claim 7, characterized in that, A protective cover (17) for protecting the first sprocket (13) is arranged on one side of the adjusting plate (2).

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