A pp shelf cooling forming device

Abstract

The utility model discloses a belong to the cooling forming technical field, concretely is a kind of PP shelf cooling forming device, including support, the upper and lower sides of the support are connected with two groups of side plates by lifting assembly, the first hollow tube is rotatably connected on the side plate by bearing, the outside fixed mounting round plate of the first hollow tube, two groups of round plate are fixedly installed second hollow tube between, stirring assembly is equipped between two groups of the first hollow tube, and stirring assembly is located in second hollow tube.This utility model is by the stirring assembly of connecting rod and stirring rod in second hollow tube inside setting, and cooperate the rotation of first hollow tube and drive stirring rod to cool liquid is stirred, can break fluid stratification stagnation state, with realize cooling liquid and second hollow tube inner wall full contact, eliminate cooling dead angle, guarantee PP board cooling uniformity, reduce board warping and so on Defects.

Description

Technical Field

[0001] This utility model relates to the field of cooling molding technology, specifically a PP shelf cooling molding device. Background Technology

[0002] PP shelves are multi-layered storage structures made primarily of polypropylene (PP). They typically consist of a base plate, support columns, and partitions, and are used to categorize and store various items. During the production process, the extruded PP sheets undergo rapid and uniform cooling and shaping to ensure flatness, dimensional accuracy, and mechanical properties, thereby guaranteeing the quality of the assembled shelves.

[0003] Currently, in the manufacturing of PP shelves, cooling roller assemblies are typically used to cool and shape the PP sheets extruded from the extruder. However, existing cooling roller assemblies have the following technical problems in actual operation: First, the coolant inside the cooling rollers mostly flows naturally or circulates simply, which easily leads to fluid stratification and local stagnation. This results in some fluid not making sufficient contact with the inner surface of the cooling roller, forming cooling dead zones, causing uneven temperature distribution on the roller surface, and consequently, inconsistent cooling of the PP sheets, leading to defects such as warping and dents. Second, the spacing of the cooling roller assemblies is mostly a fixed structure, which cannot be flexibly adjusted according to the thickness specifications of the PP sheets, resulting in poor adaptability. When changing production specifications, the entire roller assembly must be replaced, increasing production costs and downtime. Therefore, a PP shelf cooling and forming device is invented. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A PP shelf cooling and molding device includes a support frame. Two sets of side plates are connected to the upper and lower sides of the support frame via lifting components. A first hollow tube is rotatably connected to the side plate via bearings. A circular plate is fixedly installed on the outer side of the first hollow tube. A second hollow tube is fixedly installed between the two sets of circular plates. A stirring component is provided between the two sets of first hollow tubes and is located in the second hollow tube. A drive component for rotating the first hollow tube is provided on one set of the side plates.

[0005] In a preferred embodiment of the PP shelf cooling and molding device described in this utility model, the support includes: Base plate; A support rod, wherein several support rods are fixedly installed on the top of the support rod; A top plate, with several support rods fixedly installed at its bottom.

[0006] In a preferred embodiment of the PP shelf cooling and molding device described in this utility model, the lifting assembly includes: Electric push rods are fixedly installed on both sides of the opposite ends of the base plate and the top plate; A support plate is fixedly mounted on the push rod of the electric push rod, and a side plate is fixedly mounted on one side of the support plate.

[0007] In a preferred embodiment of the PP shelf cooling and forming device of this utility model, a plurality of telescopic rods are fixedly installed at the opposite ends of the bottom plate and the top plate, and one end of the telescopic rod is fixedly installed on the support plate.

[0008] In a preferred embodiment of the PP shelf cooling and molding device described in this utility model, the stirring assembly includes: Connecting rods: Several connecting rods are fixedly installed between the two sets of the first hollow tubes; A stirring rod, wherein several stirring rods are fixedly mounted on the surface of the connecting rod.

[0009] In a preferred embodiment of the PP shelf cooling and molding device of this utility model, the driving component includes: A servo motor, which is fixedly mounted on the side plate; A rotating shaft is fixedly mounted on the output shaft of a servo motor.

[0010] In a preferred embodiment of the PP shelf cooling and molding device of this utility model, the driving component further includes: The first gear is fixedly mounted on the rotating shaft; The second gear is fixedly mounted on the first hollow tube, and the first gear and the second gear are meshed together.

[0011] In a preferred embodiment of the PP shelf cooling and molding device described in this utility model, the first hollow tube is connected to a rigid tube via a bearing to achieve fluid flow in the second hollow tube.

[0012] Compared with existing technologies: 1. By setting a stirring assembly consisting of a connecting rod and a stirring rod inside the second hollow tube, and cooperating with the rotation of the first hollow tube to drive the stirring rod to stir the coolant, the fluid stratification and stagnation state can be broken, which can achieve full contact between the coolant and the inner wall of the second hollow tube, eliminate cooling dead corners, ensure the uniform cooling of PP sheet, and reduce defects such as sheet warping. 2. By installing lifting components consisting of electric push rods and telescopic rods on the upper and lower sides of the support, the side plates and cooling rollers are driven to lift and lower synchronously to adjust the spacing. This enables adaptive cooling of PP sheets of different thicknesses without the need to replace the roller assembly, reducing production changeover costs, improving equipment versatility, and shortening changeover time. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 3 This is a side view of the stirring assembly of this utility model; Figure 4 This is a schematic diagram of the support structure of this utility model.

[0014] In the figure: base plate 10, support rod 11, top plate 12, electric push rod 20, support plate 21, telescopic rod 22, side plate 30, first hollow tube 40, round plate 41, second hollow tube 42, rigid tube 43, connecting rod 50, stirring rod 51, servo motor 60, rotating shaft 61, first gear 62, second gear 63. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0016] This utility model provides a PP shelf cooling and molding device. Please refer to [link / reference]. Figures 1-4 The system includes a support frame, with two sets of side plates 30 connected to its upper and lower sides via lifting components. A first hollow tube 40 is rotatably connected to each side plate 30 via a bearing, preferably the bearing described in patent CN217736027U. A circular plate 41 is fixedly mounted on the outer side of the first hollow tube 40. A second hollow tube 42 is fixedly mounted between the two sets of circular plates 41. The second hollow tube 42 is made of high thermal conductivity aluminum alloy, with a polished inner wall to reduce fluid flow resistance and a sandblasted outer surface to increase contact friction with the PP sheet and prevent slippage. A stirring component is provided between the two sets of first hollow tubes 40. The stirring assembly is located in the second hollow tube 42, and a set of side plates 30 are provided with a drive assembly for rotating the first hollow tube 40. The inner cavity of the first hollow tube 40 is rotatably connected to a rigid tube 43 via a bearing, preferably the bearing in patent CN217736027U, to enable fluid to flow in the second hollow tube 42. One set of rigid tubes 43 is connected to an external water pump via a pipe, which can deliver cooling fluid (including but not limited to coolant) to the second hollow tube 42, and another set of rigid tubes 43 is connected to an external container via a pipe to collect the cooled fluid after heat exchange.

[0017] The bracket includes: a base plate 10, a support rod 11, and a top plate 12; Several support rods 11 are fixedly installed on the top of the support rod 11, and several support rods 11 are fixedly installed on the bottom of the top plate 12.

[0018] The lifting assembly includes: an electric push rod 20, a support plate 21, and a telescopic rod 22; Electric push rods 20 are fixedly installed on both sides of the opposite ends of the base plate 10 and the top plate 12. The support plate 21 is fixedly installed on the push rod of the electric push rod 20, and a side plate 30 is fixedly installed on one side of the support plate 21. Several telescopic rods 22 are fixedly installed on both sides of the opposite ends of the base plate 10 and the top plate 12, and one end of the telescopic rod 22 is fixedly installed on the support plate 21. The electric push rod 20 is connected to a controller.

[0019] The stirring assembly includes: a connecting rod 50 and a stirring rod 51; Several connecting rods 50 are fixedly installed between the two sets of the first hollow tubes 40, and several stirring rods 51 are fixedly installed on the surface of the connecting rods 50.

[0020] The drive assembly includes: a servo motor 60, a rotating shaft 61, a first gear 62, and a second gear 63; The servo motor 60 is fixedly mounted on the side plate 30, the rotating shaft 61 is fixedly mounted on the output shaft of the servo motor 60, the first gear 62 is fixedly mounted on the rotating shaft 61, and the second gear 63 is fixedly mounted on the first hollow tube 40, with the first gear 62 and the second gear 63 meshing together. Both the first gear 62 and the second gear 63 are involute gears, respectively fixed to the ends of the rotating shaft 61 and the first hollow tube 40 via key connections. They mesh together for transmission, with a transmission ratio of 1:2, converting the high-speed rotation of the servo motor 60 into a smooth, low-speed rotation of the first hollow tube 40. The rotation speed can be adjusted by the servo motor 60 controller, ranging from 5-30 r / min. During operation, the servo motor 60 starts, driving the rotating shaft 61 and the first gear 62 to rotate. This gear meshing drives the second gear 63 and the first hollow tube 40 to rotate, thereby driving the stirring assembly and the second hollow tube 42 to rotate, achieving rolling contact cooling with the PP sheet. Furthermore, the servo motor 60 is powered by a battery, which can be mounted on the side plate 30.

[0021] In practical use, the operating steps for those skilled in the art are as follows: First, based on the thickness of the PP sheet to be cooled, the electric push rod 20 of the lifting assembly is adjusted by the controller to match the spacing between the upper and lower sets of second hollow tubes 42. Then, an external water pump injects coolant into the cooling chamber of the second hollow tube 42 through the rigid pipe 43, and then returns it to the external container through the return channel. Next, the servo motor 60 is started, which drives the first hollow tube 40, the stirring assembly, and the second hollow tube 42 to rotate at a uniform speed through gear transmission. The stirring assembly stirs the coolant synchronously. Finally, the high-temperature PP sheet extruded by the extruder is fed between the upper and lower sets of second hollow tubes 42. The sheet is conveyed forward under the drive of the second hollow tube 42. At the same time, the coolant on the inner wall of the second hollow tube 42 quickly absorbs the heat of the sheet through the high thermal conductivity material, realizing the cooling and shaping of the sheet. The shaped sheet then enters the subsequent cutting process.

[0022] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A PP shelf cooling and molding device, comprising a support frame, characterized in that, The upper and lower sides of the bracket are connected to two sets of side plates (30) by lifting components. A first hollow tube (40) is rotatably connected to the side plate (30) by bearings. A circular plate (41) is fixedly installed on the outer side of the first hollow tube (40). A second hollow tube (42) is fixedly installed between the two sets of circular plates (41). A stirring component is provided between the two sets of first hollow tubes (40), and the stirring component is located in the second hollow tube (42). A drive component for rotating the first hollow tube (40) is provided on one set of side plates (30).

2. The PP shelf cooling and molding device according to claim 1, characterized in that, The support includes: Base plate (10); Support rod (11), several support rods (11) are fixedly installed on the top of the support rod (11). A top plate (12) is provided, and several support rods (11) are fixedly installed at the bottom of the top plate (12).

3. The PP shelf cooling and molding device according to claim 2, characterized in that, The lifting assembly includes: Electric push rods (20) are fixedly installed on both sides of the opposite ends of the bottom plate (10) and the top plate (12). Support plate (21), which is fixedly installed on the push rod of electric push rod (20), and side plate (30) is fixedly installed on one side of support plate (21).

4. The PP shelf cooling and molding device according to claim 3, characterized in that, Several telescopic rods (22) are fixedly installed at opposite ends of the bottom plate (10) and the top plate (12), and one end of the telescopic rod (22) is fixedly installed on the support plate (21).

5. The PP shelf cooling and molding device according to claim 1, characterized in that, The stirring assembly includes: Connecting rods (50): Several connecting rods (50) are fixedly installed between the two sets of the first hollow tubes (40); A stirring rod (51) is fixedly mounted on the surface of the connecting rod (50).

6. The PP shelf cooling and molding device according to claim 1, characterized in that, The driving component includes: Servo motor (60), the servo motor (60) is fixedly mounted on the side plate (30); A rotating shaft (61) is fixedly mounted on the output shaft of a servo motor (60).

7. The PP shelf cooling and molding device according to claim 6, characterized in that, The driving component also includes: The first gear (62) is fixedly mounted on the rotating shaft (61); The second gear (63) is fixedly mounted on the first hollow tube (40), and the first gear (62) and the second gear (63) are meshed together.

8. The PP shelf cooling and molding device according to claim 1, characterized in that, The first hollow tube (40) has an inner cavity that is rotatably connected to a rigid tube (43) via a bearing, so that fluid can flow in the second hollow tube (42).

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