Cooling device for rotational molding production

Abstract

The utility model belongs to the technical field of rotational molding production, and discloses a cooling device for rotational molding production, which comprises a support frame and a rotational molding mold in the support frame, two ends of the rotational molding mold are rotatably mounted in the support frame through bearings, and a driving mechanism is mounted on the side surface of the support frame. An output shaft of the driving mechanism extends into the supporting frame and is fixedly connected with one end of the rotational molding mold, a cooling mechanism located at the top of the rotational molding mold is arranged in the supporting frame, the top of the cooling mechanism fixedly communicates with a water inlet pipe, and the other end of the water inlet pipe is connected with a cooling water pump. Due to the arrangement of the water removal assembly, the water removal assembly can continuously roll along the surface of the rotational molding mold in a relatively prohibited manner under the cooperation of the driving mechanism, so that the water removal assembly can continuously absorb water which flows to the bottom along with the rotational molding mold and absorbs heat; and the condition that the heat absorption performance of subsequent cooling water is reduced due to influence of a water film after early-stage heat absorption is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rotational mould production technical field, and specifically is a cooling device for rotational mould production. BACKGROUND

[0002] Rotational molding, also known as rotomolding, spin molding, and rotational molding, is a method of hollow molding of thermoplastic plastics. This method first adds plastic raw materials to the mold, then rotates the mold along two vertical axes and heats it. The plastic raw materials in the mold are gradually and evenly coated and fused to the entire surface of the mold cavity under the action of gravity and heat energy, forming the desired shape, and then cooling and setting to form the product.

[0003] After rotational molding, cooling and molding are required. However, the existing cooling method is mainly through the form of spraying cooling water. However, the water sprayed onto the surface of the rotational mold will form a water film after absorbing heat, and the water film has a high temperature, which will block the contact between the subsequent cooling water and the mold, reducing the cooling efficiency and energy utilization. Therefore, a cooling device for rotational molding production is needed to solve the problems existing in the prior art. SUMMARY

[0004] To solve the problems raised in the background art, the utility model provides a cooling device for rotational molding production, which has the advantages of high efficiency and low energy consumption.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a cooling device for rotational molding production, comprising a support frame and a rotational mold inside the support frame, both ends of the rotational mold are rotatably installed inside the support frame through bearings, a drive mechanism is installed on the side surface of the support frame, the output shaft of the drive mechanism extends to the inside of the support frame and is fixedly connected with one end of the rotational mold, a cooling mechanism is arranged inside the support frame and located at the top of the rotational mold, a water inlet pipe is fixedly communicated at the top of the cooling mechanism, the other end of the water inlet pipe extends to the outside of the support frame and is connected with a cooling water pump, a through hole is formed in the side surface of the lower end of the cooling mechanism, the axis of the through hole intersects with the outer surface of the rotational mold, and a water removal mechanism is arranged inside the support frame and located at the bottom of the rotational mold.

[0006] Preferably, the water removal mechanism comprises a water removal assembly and a water squeezing assembly movably installed inside the support frame, the water removal assembly is tightly attached between the rotational mold and the water squeezing assembly, and both ends of the water removal assembly and the water squeezing assembly are rotatably connected to the inside of the support frame through bearings.

[0007] Preferably, both ends of the water removing assembly penetrate through the support frame and are connected with a regulating assembly, the inside of the support frame is fixedly installed with a water collecting tank located directly below the water squeezing assembly, and the outer surface size of the water removing assembly and the water squeezing assembly is smaller than the inner cavity size of the water collecting tank.

[0008] Preferably, the water removing assembly comprises a water removing air bag roller movably installed in the inside of the support frame, a coaxial air inlet pipe is fixedly sleeved in the inside of the water removing air bag roller, two left and right flow guide cavities are formed in the inside of the air inlet pipe, flow guide grooves communicating with the flow guide cavities and uniformly distributed in the radial direction are formed in the outer surface of the air inlet pipe, and the inside of the water removing air bag roller is connected in communication with the regulating assembly through the flow guide cavities and the flow guide grooves.

[0009] Preferably, the water squeezing assembly comprises a water squeezing roller movably installed in the inside of the support frame, a positioning shaft is movably sleeved in the inside of the water squeezing roller, both ends of the positioning shaft penetrate through the water squeezing roller and are connected with the support frame, and the upper and lower sides of the outer surface of the water removing air bag roller are respectively in abutment with the facing surfaces of the rotational molding mold and the outer surface of the water squeezing roller.

[0010] Preferably, the regulating assembly comprises a regulating pipe fixedly connected with one end of the water removing air bag roller, a regulating rod is arranged in the inside of the regulating pipe, the regulating rod is of a hollow structure, one end of the regulating rod is sealingly sleeved in the inside of the regulating pipe, and the other end of the regulating rod extends to the outside of the regulating pipe and is fixedly connected with a regulating head.

[0011] Preferably, a sealing cavity is formed in the inside of the regulating head, air supplement holes are formed in the outer surface of the regulating head and away from one end of the regulating rod, the air supplement holes are connected in sequence with the inside of the sealing cavity, the regulating rod and the flow guide cavities, one end of the air supplement holes and the regulating rod close to the water removing assembly is connected with a one-way valve plate, one end of the air supplement holes and the regulating rod away from the water removing assembly is connected with a one-way valve plate, and the one-way valve plates are sealingly attached to one end of the regulating rod and the air supplement holes, respectively.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、Due to the arrangement of the water removing assembly, the water removing assembly can continuously roll along the surface of the rotational molding mold under the cooperation of the driving mechanism, so that the water removing assembly can continuously absorb the water flowing to the bottom along the rotational molding mold and heated, thereby avoiding the situation that the subsequent cooling water is affected by the water film after the heat absorption in the early stage and the heat absorption performance is reduced.

[0014] 2, the utility model discloses the setting of the regulation and control subassembly can adjust the expansion degree of the water removal air bag roller under the cooperation of the water removal subassembly, make the top of water removal air bag roller and the bottom of rotomoulding mould close adhesion, and the bottom of water removal air bag roller and the top of water squeezing roller close adhesion, thereby ensure that water squeezing roller can extrude the water after heat absorption on water removal air bag roller in time, to ensure that water removal air bag roller continues effective water absorption performance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is structure schematic diagram of the utility model;

[0016] Figure 2 It is front view of the utility model;

[0017] Figure 3 It is structure schematic diagram of the water removal mechanism of the utility model;

[0018] Figure 4 It is the sectional view of the front of the water removal mechanism of the utility model;

[0019] Figure 5 It is Figure 4 It is the local enlarged schematic view of A place in;

[0020] Figure 6 It is the sectional view of the side of the water removal mechanism of the utility model.

[0021] In the drawing: 1, support frame;2, rotomoulding mould;3, cooling mechanism;4, inlet pipe;5, water removal mechanism;51, water removal subassembly;511, water removal air bag roller;512, air inlet pipe;513, flow guide cavity;514, flow guide groove;52, water squeezing subassembly;521, water squeezing roller;522, positioning shaft;53, regulation and control subassembly;531, regulation and control pipe;532, regulation and control rod;533, regulation and control head;534, sealing cavity;535, air supplement hole;536, one-way valve plate;54, water collecting groove. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0023] As Figures 1 to 6The utility model provides a cooling device for rotational moulding production, including support frame 1 and its inside rotational mould 2, both ends of rotational mould 2 are installed in the inside of support frame 1 through bearing rotation, the side surface of support frame 1 is installed with drive mechanism, and the output shaft of drive mechanism extends to the inside of support frame 1 and is fixedly connected with one end of rotational mould 2, the inside of support frame 1 is provided with cooling mechanism 3 at the top of rotational mould 2, and the top of cooling mechanism 3 is fixedly connected with water inlet pipe 4, and the other end of water inlet pipe 4 extends to the outside of support frame 1 and is connected with cooling water pump, the side surface of the lower end of cooling mechanism 3 is provided with through hole, and the axis of through hole intersects with the outer surface of rotational mould 2, and the inside of support frame 1 is provided with water removal mechanism 5 at the bottom of rotational mould 2, and the top of water removal mechanism 5 is tightly attached with the bottom of rotational mould 2, due to the setting of water removal assembly 51, can make water removal assembly 51 along the surface of rotational mould 2 relative prohibition continuous rolling under the cooperation of drive mechanism, and then make water removal assembly 51 can constantly absorb the water that flows to the bottom following rotational mould 2 and heats after, avoid the subsequent cooling water to reduce the heat absorption performance condition under the influence of the water film after the heat absorption of preceding.

[0024] As Figure 2 The water removal mechanism 5 includes a water removal assembly 51 movably installed in the inside of the support frame 1 and a water squeezing assembly 52, the water removal assembly 51 is tightly attached between the rotational mould 2 and the water squeezing assembly 52, and both ends of the water removal assembly 51 and the water squeezing assembly 52 are rotatably connected in the inside of the support frame 1, due to the setting of the water squeezing assembly 52, when it is tightly attached with the water squeezing assembly 52, the water removal bladder roller 511, the water squeezing roller 521 and the rotational mould 2 can be rotated simultaneously under the cooperation of the drive mechanism, so that the water removal bladder roller 511 can absorb the water heated after and the water squeezing roller 521 can squeeze out the water in the water removal bladder roller 511, so as to ensure that the water removal bladder roller 511 always has sufficient water absorption performance.

[0025] As Figure 2 Both ends of the water removal assembly 51 penetrate the support frame 1 and are connected with a control assembly 53, the inside of the support frame 1 is fixedly installed with a water collecting tank 54 located directly below the water squeezing assembly 52, and the outer surface size of the water removal assembly 51 and the water squeezing assembly 52 is smaller than the inner cavity size of the water collecting tank 54, due to the setting of the control assembly 53, the expansion degree of the water removal bladder roller 511 can be adjusted under the cooperation of the water removal assembly 51, so that the top of the water removal bladder roller 511 is tightly attached with the bottom of the rotational mould 2, and the bottom of the water removal bladder roller 511 is tightly attached with the top of the water squeezing roller 521, so as to ensure that the water squeezing roller 521 can timely squeeze out the water heated after in the water removal bladder roller 511, so as to ensure the continuous and effective water absorption performance of the water removal bladder roller 511.

[0026] As Figures 3 to 5As shown in the drawings, the water removal assembly 51 comprises a water removal air bag roller 511 movably mounted inside the support frame 1, a coaxial air inlet pipe 512 is fixedly sleeved in the water removal air bag roller 511, two left and right flow guide cavities 513 are formed in the air inlet pipe 512, flow guide grooves 514 are formed on the outer surface of the air inlet pipe 512 and are communicated with the flow guide cavities 513 in the radial direction and are uniformly distributed, and the control assembly 53 is connected with the inside of the water removal air bag roller 511 through the flow guide cavities 513 and the flow guide grooves 514. Due to the arrangement of the flow guide cavities 513 and the flow guide grooves 514, one of the control assemblies 53 can ensure that the staff can continuously inject external air into the inside of the water removal air bag roller 511, and the other control assembly 53 can ensure that the staff can continuously extract air in the inside of the water removal air bag roller 511, so as to control the expansion and contraction of the water removal air bag roller 511.

[0027] As shown in the drawings, Figure 3 The water removal assembly 51 comprises a water removal air bag roller 511 movably mounted inside the support frame 1, a coaxial air inlet pipe 512 is fixedly sleeved in the water removal air bag roller 511, two left and right flow guide cavities 513 are formed in the air inlet pipe 512, flow guide grooves 514 are formed on the outer surface of the air inlet pipe 512 and are communicated with the flow guide cavities 513 in the radial direction and are uniformly distributed, and the control assembly 53 is connected with the inside of the water removal air bag roller 511 through the flow guide cavities 513 and the flow guide grooves 514. Due to the arrangement of the flow guide cavities 513 and the flow guide grooves 514, one of the control assemblies 53 can ensure that the staff can continuously inject external air into the inside of the water removal air bag roller 511, and the other control assembly 53 can ensure that the staff can continuously extract air in the inside of the water removal air bag roller 511, so as to control the expansion and contraction of the water removal air bag roller 511.

[0028] As shown in the drawings, Figure 3 and Figure 4 The control assembly 53 comprises a control pipe 531 fixedly connected to one end of the water removal air bag roller 511, a control rod 532 is arranged in the control pipe 531, the control rod 532 is a hollow structure, one end of the control rod 532 is sealingly sleeved in the control pipe 531, and the other end of the control rod 532 extends to the outside of the control pipe 531 and is fixedly connected with a control head 533.

[0029] As shown in the drawings, Figure 3 and Figure 4 The inside of the control head 533 is provided with a sealing cavity 534, the end of the outer surface of the control head 533 away from the control rod 532 is provided with a gas supplement hole 535, the gas supplement hole 535 is sequentially communicated with the inside of the sealing cavity 534, the control rod 532 and the flow guide cavity 513, one end of one of the gas supplement holes 535 and the control rod 532 close to the water removal assembly 51 is connected with a one-way valve plate 536, one end of the other gas supplement hole 535 and the control rod 532 away from the water removal assembly 51 is connected with a one-way valve plate 536, and the one-way valve plates 536 are sealingly attached to one end of the control rod 532 and the gas supplement hole 535 respectively.

[0030] The working principle and use process of the utility model:

[0031] Firstly, the expansion of the water removal assembly 51 is controlled by the regulating assembly 53, specifically, by reciprocating the regulating head 533, the flow of gas is controlled through the regulating pipe 531 and the regulating rod 532 under the cooperation of the two one-way valve plates 536, so that the external air enters the inside of the water removal air bag roller 511 through the air supplement hole 535, the air supplement hole 535, the regulating rod 532, the flow guide cavity 513, and the flow guide groove 514, so that the water removal air bag roller 511 is expanded and tightly attached to the bottom of the rotational molding mold 2 and the top of the water squeezing roller 521.

[0032] Then, the cooling water is injected into the inside of the cooling mechanism 3 through the water inlet pipe 4, so that the cooling water flows downward along the outer surface of the rotational molding mold 2 under the cooperation of the lower end side through hole, absorbs and carries away the heat in the rotational molding mold 2, when the cooling water after absorbing heat flows along the surface of the rotational molding mold 2 to the water removal air bag roller 511, it is absorbed by the water removal air bag roller 511, and with the rotation of the water removal air bag roller 511 and the water squeezing roller 521, the water in the water removal air bag roller 511 is squeezed out by the water squeezing roller 521 and falls into the water collecting groove 54.

[0033] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0034] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cooling device for rotational molding production comprising a support frame (1) and a rotational molding mold (2) inside it, characterized by: Two ends of the rotational molding mold (2) are rotatably installed in the inside of the support frame (1), the side surface of the support frame (1) is provided with a driving mechanism, the output shaft of the driving mechanism extends to the inside of the support frame (1) and is fixedly connected with one end of the rotational molding mold (2), the inside of the support frame (1) is provided with a cooling mechanism (3) located at the top of the rotational molding mold (2), the top of the cooling mechanism (3) is fixedly connected with a water inlet pipe (4), the other end of the water inlet pipe (4) extends to the outside of the support frame (1) and is connected with a cooling water pump, the side surface of the lower end of the cooling mechanism (3) is provided with a through hole, the axis of the through hole intersects with the outer surface of the rotational molding mold (2), the inside of the support frame (1) is provided with a water removing mechanism (5) located at the bottom of the rotational molding mold (2), and the top of the water removing mechanism (5) is tightly attached to the bottom of the rotational molding mold (2).

2. A cooling device for roto-molding production according to claim 1, characterized in that: The water removing mechanism (5) comprises a water removing assembly (51) and a water squeezing assembly (52) movably installed in the inside of the support frame (1), the water removing assembly (51) is tightly attached between the rotational molding mold (2) and the water squeezing assembly (52), and both ends of the water removing assembly (51) and the water squeezing assembly (52) are rotatably connected in the inside of the support frame (1).

3. A cooling device for roto-molding production according to claim 2, characterized in that: Both ends of the water removing assembly (51) penetrate through the support frame (1) and are connected with one regulating assembly (53), the inside of the support frame (1) is fixedly provided with a water collecting tank (54) located directly below the water squeezing assembly (52), and the outer surface dimensions of the water removing assembly (51) and the water squeezing assembly (52) are smaller than the inner cavity dimensions of the water collecting tank (54).

4. The cooling device for roto-molding production according to claim 3, characterized in that: The water removing assembly (51) comprises a water removing air bag roller (511) movably installed in the inside of the support frame (1), a coaxial air inlet pipe (512) is fixedly sleeved in the inside of the water removing air bag roller (511), two left and right flow guide cavities (513) are formed in the inside of the air inlet pipe (512), flow guide grooves (514) are formed in the outer surface of the air inlet pipe (512) and are communicated with the flow guide cavities (513) in the radial direction and are uniformly distributed, and the regulating assembly (53) is communicated with the inside of the water removing air bag roller (511) through the flow guide cavities (513) and the flow guide grooves (514).

5. A cooling device for roto-molding according to claim 4, characterized in that: The water squeezing assembly (52) comprises a water squeezing roller (521) movably installed in the inside of the support frame (1), a positioning shaft (522) is movably sleeved in the inside of the water squeezing roller (521), both ends of the positioning shaft (522) penetrate through the water squeezing roller (521) and are connected with the support frame (1), and the upper and lower sides of the outer surface of the water removing air bag roller (511) are respectively abutted against the opposite surfaces of the outer surfaces of the rotational molding mold (2) and the water squeezing roller (521).

6. A cooling device for roto-molding according to claim 4, characterized in that: The regulating component (53) comprises a regulating pipe (531) fixedly connected to one end of the water removal air bag roller (511), the inside of the regulating pipe (531) is provided with a regulating rod (532), the regulating rod (532) is a hollow structure, one end of the regulating rod (532) is sealingly sleeved into the inside of the regulating pipe (531), and the other end of the regulating rod (532) extends to the outside of the regulating pipe (531) and is fixedly connected with a regulating head (533).

7. A cooling device for roto-molding according to claim 6, characterized in that: The inside of the regulating head (533) is provided with a sealing cavity (534), the outer surface of the regulating head (533) is provided with a gas supplement hole (535) away from one end of the regulating rod (532), the gas supplement hole (535) is sequentially communicated with the inside of the sealing cavity (534), the regulating rod (532) and the flow guide cavity (513), one end of the gas supplement hole (535) and the regulating rod (532) close to the water removal component (51) is connected with a one-way valve plate (536), and the other end of the gas supplement hole (535) and the regulating rod (532) away from the water removal component (51) is connected with a one-way valve plate (536), and the one-way valve plates (536) are sealingly attached to one end of the regulating rod (532) and the gas supplement hole (535) respectively.

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