Intermittent cooling device for plastic molding

Abstract

The utility model provides an intermittent cooling device for plastic molding, which relates to the technical field of plastic processing and comprises a transfer pipe, an inner coil pipe is embedded in the transfer pipe, a cooling channel opening is formed between the transfer pipe and the inner coil pipe in a penetrating manner, a plurality of arc handle plates are embedded in the inner coil pipe and are of a VC vapor chamber structure, and the inner coil pipe and the cooling channel opening are communicated through the cooling channel opening. A heat capacity cavity is formed between the arc handle plate and the inner coil pipe, and a circulating bin connected with the heat capacity cavity is fixed to the outer side of the inner coil pipe; the utility model has the beneficial effects that the transfer pipe and the inner coil pipe structure are inserted and arranged at the periphery of the cavity of the model tool by adopting the butt joint pipe mode, and the arc handle plate arranged in the structure is matched to be attached and fixed with the cavity structure; and a cooling water path acts on the plate surface of the arc handle plate in a one-way flow channel structure by utilizing an outer circulating pipe and an inner circulating pipe, and a cavity structure is intermittently cooled in a single forming cooling process in a pneumatic control manner.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing, in particular to an intermittent cooling device for plastic molding. Background Art

[0002] Bottle caps are a crucial component of food and drug packaging, and are the first point of contact between consumers and the product. They maintain product sealing and maintain stable quality, while also providing anti-theft and safety features. Therefore, they are widely used on bottled products containing contents.

[0003] The production process of bottle caps is generally divided into injection molding and die-casting. The process of injection molding cap production is as follows: a suction machine sucks the mixed material into the barrel of the injection molding machine, heats it to a molten plasticized state in the barrel, and then injects it into the mold cavity. The material is cooled and shaped in the cavity, demolded, and then cut into rings and padded to complete the injection molding production. In the prior art, before and after the injection molding of the cap, a structure of an accompanying water channel is usually arranged in a winding manner in the cavity to quickly cool the cavity and the model structure during the molding process to complete demolding. However, the actual cooling effect is limited by the residual heat on the surface of the cooling water channel structure and the straight arrangement of the accompanying water channel, which greatly reduces the cooling effect of the cooling water channel during long-term processing, affecting the consistency and efficiency of the actual processing. Utility Model Content

[0004] In view of the above technical problems existing in the prior art, a plastic molding intermittent cooling device is provided.

[0005] The purpose and effect of this utility model are achieved by the following specific technical means:

[0006] A plastic molding intermittent cooling device includes a transfer pipe, an inner coil is embedded in the transfer pipe, a cooling channel is formed between the transfer pipe and the inner coil, and a plurality of arc handle plates are embedded in the inner coil. The arc handle plates are VC heat sink structures, and a heat capacity cavity is formed between the arc handle plates and the inner coil. A circulation chamber connected to the heat capacity cavity is fixed on the outside of the inner coil;

[0007] The transfer pipe is provided with an inner circulation pipe fixed in an embrace at one end of the cooling channel, an interface pipe is extended to the outside of the transfer pipe at one end of the inner circulation pipe, and an outer circulation pipe is provided between the other end of the inner circulation pipe and the circulation bin, and the outer circulation pipe port is provided with a valve port pipe communicating with the circulation bin.

[0008] Furthermore, the inner coil has a bucket-mouth pipe diameter structure.

[0009] Furthermore, a plurality of screw members are symmetrically arranged on one side of the transfer tube, and an assembly part is fixed to the end of the transfer tube through the screw member.

[0010] Furthermore, the arc handle plate is an arched structure, and the arc handle plate surface is in contact with the inner wall arc surface of the inner coil.

[0011] Furthermore, a liquid hole is provided between the arc handle plate heat capacity cavity and the circulation chamber, and the liquid hole is a one-way inlet and outlet hole.

[0012] Furthermore, an air pump head is externally provided at the connection end of the outer circulation pipe and the inner circulation pipe, and the air pump head is externally connected to an air pump pipeline.

[0013] Furthermore, a through-hole plug is provided between the inner circulation pipe and the interface pipe.

[0014] Furthermore, the interface pipe is a solenoid valve port structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This intermittent cooling device for plastic molding uses a butt-jointed tube method to insert and assemble a transfer tube and an inner coil structure to the periphery of the mold cavity, cooperates with the arc handle plate provided in the structure to fit and fix with the cavity structure, and utilizes an outer circulation tube and an inner circulation tube to apply the cooling water path to the arc handle plate surface in a one-way flow channel structure, cooperates with pneumatic control to intermittently cool the cavity structure during a single molding cooling process, cooperates with the formation of a heat capacity cavity to reduce the influence of residual heat on single cooling, thereby improving the cooling effect and stability of the cooling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal planar structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the inner circulation pipe and the interface pipe of the utility model.

[0020] Markings in the figure: 1-transfer pipe; 2-assembly part; 3-interface pipe; 4-screw member; 5-inner coil; 6-arc handle plate; 7-liquid hole; 8-circulation chamber; 9-valve port pipe; 10-external circulation pipe; 11-air pump head; 12-internal circulation pipe; 13-through hole plug. DETAILED DESCRIPTION

[0021] See also Figure 1-3 , further illustrate the embodiments of the present utility model;

[0022] A plastic molding intermittent cooling device includes a transfer pipe 1, an inner coil 5 is embedded in the transfer pipe 1, a cooling channel is formed between the transfer pipe 1 and the inner coil 5, and a plurality of arc handle plates 6 are embedded in the inner coil 5. The arc handle plates 6 are VC heat sink structures, and a heat capacity cavity is formed between the arc handle plates 6 and the inner coil 5. A circulation chamber 8 connected to the heat capacity cavity is fixed on the outside of the inner coil 5;

[0023] An inner circulation pipe 12 is provided at one end of the cooling passage, and an interface pipe 3 is extended to the outside of the transfer pipe 1 at one end of the inner circulation pipe 12, and an outer circulation pipe 10 is provided between the other end of the inner circulation pipe 12 and the circulation bin 8, and a valve port pipe 9 is provided at the pipe end of the outer circulation pipe 10, which is interconnected with the circulation bin 8.

[0024] The device mainly adopts a pipe body structure composed of a transfer pipe 1 and an inner coil 5 to cooperate with the plug-in configuration method, and uses the cooling channel as a covering cooling structure of the external structure of the model cavity. In its structure, the arc handle plate 6 distributed on the inner surface of the inner coil 5 serves as the contact end with the model cavity structure. The arc handle plate 6 is a VC heat spreader, which uses its excellent thermal conductivity to efficiently exchange heat with the cooling water flowing through the outer circulation pipe 10 and the inner circulation pipe 12 with the model cavity to ensure the cooling effect of the device. At the same time, on this basis, considering the weakening of heat exchange efficiency and cooling effect during long-term processing, the warehouse structure formed by the heat capacity cavity of the inner coil 5 and the circulation warehouse 8 has a certain heat storage capacity, and cooperates with the unidirectionally arranged outer circulation pipe 10 to quickly take away excess heat in the intermittent interval to avoid residual heat affecting the subsequent cooling molding effect and efficiency.

[0025] Preferably, the inner coil 5 is a bucket-mouth type pipe diameter structure. The bucket-mouth type pipe diameter structure, combined with the plug-in configuration of the inner coil 5, can provide a certain space for the structural heat of the inner coil 5 to be conductively conducted outward, so as to further improve the cooling effect of the internal arc handle plate 6 in the intermittent state.

[0026] Preferably, a plurality of screw members 4 are symmetrically arranged on one side of the transfer tube 1, and an assembly part 2 is fixed to the end of the transfer tube 1 through the screw member 4. The device is mainly assembled with the model cavity by means of a plug-in configuration, and the assembly part 2 extended externally is further clamped and fixed to the outside of the model cavity, thereby improving the reliability of the structural fixing method.

[0027] Preferably, the arc handle plate 6 is an arched structure, and the surface of the arc handle plate 6 is in contact with the inner wall arc surface of the inner coil 5. The arched structure of the arc handle plate 6 is used to ensure the contact effect between the arc handle plate 6 and the mold cavity structure, that is, to ensure the cooling effect.

[0028] Preferably, a liquid hole 7 is provided between the heat capacity cavity of the arc handle plate 6 and the circulation chamber 8. The liquid hole 7 is a one-way inlet and outlet hole. The internally provided liquid hole 7 is used to cooperate with the one-way pipeline structure of the external circulation pipe 10, so that in a single circulation of the cooling water circuit, the two inlet and outlet holes are used to respectively complete the input and output of the water in the circulation chamber 8, so as to ensure the flow rate of the external circulation pipe 10 when passing through the circulation chamber 8.

[0029] Preferably, an air pump head 11 is externally provided at the connecting end of the outer circulation pipe 10 and the inner circulation pipe 12, and the air pump head 11 is externally connected to an air pump pipeline. The device mainly uses the pneumatic control of the air pump head 11 to quickly control the cooling water stagnant in the outer circulation pipe 10 and the inner circulation pipe 12 with the filled gas during the cooling interval time to avoid heat affecting the pipeline and the cooling structure.

[0030] Preferably, a through-hole plug 13 is provided between the inner circulation pipe 12 and the interface pipe 3. The through-hole plug 13 provided between the interface pipe 3 and the inner circulation pipe 12 is used to conveniently intercept and control the water at both ends of the pipe mouth of the interface pipe 3 so as to facilitate subsequent maintenance of the pipeline.

[0031] Preferably, the interface pipe 3 is a solenoid valve port structure, which is used to facilitate the use of the device arranged in multiple positions, and to perform single-channel flow cutoff control on a local single interface pipe 3, so as to improve the control accuracy of the device.

[0032] The embodiment of the device is:

[0033] The device combines the cooling channel in the inner coil 5 with the outer wall of the mold cavity of the injection molded cover by plug-in configuration, and is further clamped and fixed in the mold structure by the assembly part 2. The configuration of the device is completed by connecting the cooling water channel with the interface pipe 3 and connecting the air pump head 11 with the pneumatic air source.

[0034] During operation, the water in the cooling water circuit flows from the interface pipe 3 into the inner circulation pipe 12, and flows along a single path through the air pump head 11, the outer circulation pipe 10, the valve port pipe 9 in turn into the circulation bin 8, and flows along the liquid holes 7 at both ends of the circulation bin 8 through the heat capacity cavity in the arc handle plate 6, and finally discharged along the outer circulation pipe 10 and the inner circulation pipe 12 of another path to complete a single cycle. When the cooling water circuit flows, the contact between the arc handle plate 6 and the model cavity is used to perform heat exchange cooling on the injection molded cover and the model cavity structure in the model cavity, and in the single circulation path, the air pump head 11 is used to pressurize gas into the pipeline at the intermittent time node through pneumatic control to quickly empty the water in the cooling water circuit and quickly empty the water with heat to prepare for the next single cycle.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A plastic molding intermittent cooling device, characterized in that: The invention comprises a transfer pipe (1), an inner coil (5) is embedded in the transfer pipe (1), a cooling passage is formed between the transfer pipe (1) and the inner coil (5), and a plurality of arc handle plates (6) are embedded in the inner coil (5), the arc handle plates (6) are VC heat-sinking plate structures, and a heat capacity cavity is formed between the arc handle plates (6) and the inner coil (5), and a circulation chamber (8) connected to the heat capacity cavity is fixed on the outside of the inner coil (5); The transfer pipe (1) is provided with an inner circulation pipe (12) at one end of the cooling passage, and the inner circulation pipe (12) is provided with an interface pipe (3) extending outward from the transfer pipe (1). An outer circulation pipe (10) is provided between the other end of the inner circulation pipe (12) and the circulation chamber (8), and a valve port pipe (9) is provided at the pipe mouth of the outer circulation pipe (10) and is communicated with the circulation chamber (8).

2. The intermittent cooling device for plastic molding according to claim 1, characterized in that: The inner coil (5) is a bucket-mouth type pipe diameter structure.

3. The intermittent cooling device for plastic molding according to claim 1, characterized in that: A plurality of screw rods (4) are symmetrically arranged on one side of the transfer tube (1), and an assembly part (2) is fixed to the end of the transfer tube (1) via the screw rods (4).

4. The intermittent cooling device for plastic molding according to claim 1, characterized in that: The arc handle plate (6) is an arched surface structure, and the plate surface of the arc handle plate (6) is in contact with the inner wall arc surface of the inner coil (5).

5. The intermittent cooling device for plastic molding according to claim 1, characterized in that: A liquid hole (7) is provided between the heat capacity cavity of the arc handle plate (6) and the circulation chamber (8), and the liquid hole (7) is a one-way inlet and outlet hole.

6. The intermittent cooling device for plastic molding according to claim 1, characterized in that: An air pump head (11) is externally connected to the connection end of the outer circulation pipe (10) and the inner circulation pipe (12), and the air pump head (11) is externally connected to an air pump pipeline.

7. The intermittent cooling device for plastic molding according to claim 1, characterized in that: A through-hole plug (13) is provided between the inner circulation pipe (12) and the interface pipe (3).

8. The intermittent cooling device for plastic molding according to claim 1, characterized in that: The interface pipe (3) is a solenoid valve port structure.

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