Ultra-clean barrel blowing mold device with circulating water cooling function

Abstract

The invention relates to the technical field of blow molding, and particularly discloses an ultra-clean barrel blow molding mold device with a circulating water cooling function, the ultra-clean barrel blow molding mold device comprises two mold mechanisms, the two mold mechanisms are the same, and each mold mechanism comprises a mold shell, a sensing pressing block, a circulating water cooling mechanism and a blowing mechanism; the mold shell comprises a water inlet hole, a water outlet hole, a first annular groove, a heat conducting plate and a forming groove; the circulating water cooling mechanism comprises a first pipeline, a second pipeline and a third pipeline, and the circulating water cooling mechanism is arranged in the first annular groove; the blowing mechanism is arranged at the bottom of the mold shell, and the blowing mechanism is provided with two blowing holes; the sensing pressing block is connected with the inner wall of the forming groove; the defects that in the prior art, a blowing mold device is not high in cooling efficiency, or water resources are prone to being wasted, the automation degree is insufficient, and the air tightness is insufficient are overcome.

Description

Technical Field

[0001] The invention relates to the field of mold forming, in particular to an ultra-clean barrel blow molding mold device with a circulating water cooling function. Background Art

[0002] Blow molding is a plastic processing method mainly used to produce hollow plastic products. This technology involves extruding molten plastic into a tubular parison through an extruder, then placing the parison in a mold, expanding it through compressed air or other methods to fit the inner wall of the mold, and finally cooling and solidifying it to form a hollow plastic product.

[0003] In the prior art, blow molding molds are usually cooled by cooling fans or directly by water flow, which leads to low cooling efficiency or excessive waste of water resources. At the same time, the prior art also has the problems of insufficient automation and insufficient airtightness. Summary of the invention

[0004] 1. Technical issues to be resolved The problem to be solved by the present invention is to provide an ultra-clean barrel blow molding mold device with a circulating water cooling function to overcome the defects of the blow molding mold device in the prior art, such as low cooling efficiency or easy waste of water resources, insufficient automation and insufficient air tightness.

[0005] (II) Technical solution In order to solve the technical problem, the present invention provides an ultra-clean barrel blow molding mold device with a circulating water cooling function, comprising: A mold mechanism, wherein the mold mechanism has two, the two mold mechanisms are identical, the two mold mechanisms are arranged opposite to each other, and the mold mechanism includes a mold shell, a sensor block, a circulating water cooling mechanism, and a blowing mechanism; The mold shell comprises a water inlet hole, a water outlet hole, a first annular groove, a heat conducting plate and a forming groove, wherein the water inlet hole is arranged at the bottom of one end of the mold shell, the water outlet hole is arranged at the top of the other end of the mold shell, the first annular groove is opened inside the mold shell, the first annular groove is provided with a plurality of circular grooves along the vertical direction, the water inlet hole and the water outlet hole are connected with the first annular groove, the forming groove is opened at the center of the mold shell, and the heat conducting plate is arranged at the top of the mold shell; The circulating water cooling mechanism includes a first pipe, a second pipe and a third pipe, the first pipe has a plurality of pipes, and the plurality of first pipes are respectively arranged in the plurality of circular grooves, the second pipe is annular, and the second pipe has two pipes, one of which is connected to the top of each of the first pipes, and the other of which is connected to the bottom of each of the first pipes, and the third pipes are respectively inserted in the water inlet and the water outlet; The blowing mechanism is arranged at the bottom of the mold shell, and the blowing mechanism has two blowing holes; The sensing pressing block is connected to the inner wall of the forming groove.

[0006] As described above, the blow molding mold device, optionally, the circulating water cooling mechanism includes a water inlet pipe, a water outlet pipe and a water pump, the water inlet pipe is connected to the third pipe at the water inlet hole, the water outlet pipe is connected to the third pipe at the water outlet hole, one end of the water pump is connected to the water inlet pipe, and the other end of the water pump is connected to the water outlet pipe.

[0007] As described above in the blow molding mold device, optionally, a tube-fin heat dissipation mechanism is provided on the water inlet pipe, and the tube-fin heat dissipation mechanism includes two heat dissipation brackets, a plurality of connecting pipes and a plurality of tube fins, a plurality of channel pipes are opened inside the heat dissipation bracket, a plurality of the connecting pipes are respectively arranged between two of the heat dissipation brackets, a plurality of the connecting pipes are respectively connected to the channel pipes, and a plurality of the tube fins are correspondingly connected to a plurality of the connecting pipes.

[0008] As mentioned above, the blow molding mold device can optionally include a blow plug, wherein the blow plug includes a blow shell and a blow needle, wherein the blow needle is inserted into the blow shell, and the blow needle is hollow.

[0009] As the blow molding mold device described above, optionally, the two blowing holes are provided with internal threads, and the blowing shell is provided with external threads. When the blow molding mold device is blow-molded, the blowing plug is threadedly connected to the blowing holes, and the blowing plug blows air inwardly.

[0010] As mentioned above, the blow molding mold device can optionally include a temperature sensor, wherein the temperature sensor is connected to the inner wall of the molding groove, and the temperature sensor is arranged adjacent to the sensing block.

[0011] As in the aforementioned blow molding mold device, optionally, a seal is provided on the outer side of the mold shell, and when the two mold shells are closed, the seal isolates the gas input by the blowing mechanism from leaking.

[0012] As mentioned above, for the blow molding mold device, optionally, a plurality of connection holes are provided on the top and the bottom of the mold shell, and the external moving mechanism is connected to the blow molding mold device through the connection holes.

[0013] As the blow mould device described above, optionally, the blow mould device is connected to an external control device.

[0014] (III) Beneficial effects The invention provides an ultra-clean barrel blow molding mold device with circulating water cooling function, and its beneficial effects are as follows: (1) The present invention provides a first annular groove in the mold shell, and a plurality of circular grooves are arranged in the first annular groove. The first pipe in the circulating water cooling mechanism is arranged in the circular groove, and the second pipe is connected with the plurality of first pipes. The circulating water can flow into the first pipe and the second pipe through the third pipe at the water inlet hole, and flow out from the third pipe at the water outlet hole. The circular groove can expand the contact area between the first pipe and the mold shell, thereby improving the heat conduction efficiency. The circulating water cooling mechanism arranged in the first annular groove can quickly cool the plastic material that is closely attached to the inner wall of the molding groove after blowing, thereby ensuring rapid molding of the plastic material.

[0015] (2) The present invention connects the water inlet hole through a water inlet pipe, and the water outlet hole through a water outlet pipe. The water inlet pipe and the water outlet pipe are respectively connected to a water pump. The water pump can provide power for the internal water circulation. The water inlet pipe is connected to a tube-fin heat dissipation mechanism. The circulating water flow can flow in multiple connecting pipes in the tube-fin heat dissipation mechanism, which effectively expands the flow distance of the circulating water flow and improves the heat dissipation effect. At the same time, the tube fins connected to the connecting pipes can expand the heat dissipation area of ​​each connecting pipe. The technicians can accelerate the cooling of the circulating water by setting a heat dissipation fan outside, thereby realizing the effect of circulating cooling and ensuring the utilization rate of water resources.

[0016] (3) The present invention sets a sensing block and a temperature sensor on the inner wall of the molding groove of the mold shell, and the sensing block and the temperature sensor are connected to an external temperature control device. The sensing block can detect whether the plastic material is completely attached to the molding groove during the blow molding process to complete the molding work; the temperature sensor can detect the temperature threshold of the mold shell. When the temperature is not within the temperature threshold, the control device can adjust the flow rate of the water pump to reduce or speed up the cooling speed of the water circulation. This method can accurately detect whether the blow molding is formed, saving manpower, and can also automatically adjust the cooling speed of the water circulation, thereby reducing the occurrence of failure rate.

[0017] (4) The present invention provides a seal on the mold shell to ensure the air tightness of the two mold mechanisms during the blowing process of the blowing mechanism after the two mold mechanisms are combined. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1A three-dimensional diagram of an ultra-clean barrel blow molding mold device with a circulating water cooling function according to the present invention; Figure 2 A top view of an ultra-clean barrel blow molding mold device with circulating water cooling function according to the present invention; Figure 3 A three-dimensional diagram of a mold mechanism of an ultra-clean barrel blow molding mold device with a circulating water cooling function according to the present invention; Figure 4 It is a side view of a mold mechanism of an ultra-clean barrel blow molding mold device with a circulating water cooling function of the present invention; Figure 5 It is a front view of a mold mechanism of an ultra-clean barrel blow molding mold device with a circulating water cooling function of the present invention; Figure 6 It is a cross-sectional view of an ultra-clean barrel blow molding mold device with circulating water cooling function of the present invention; Figure 7 It is a cross-sectional view of a tube-fin heat dissipation mechanism of an ultra-clean barrel blow molding mold device with a circulating water cooling function of the present invention; Figure 8 A three-dimensional diagram of a tube-fin heat dissipation mechanism of an ultra-clean barrel blow molding mold device with a circulating water cooling function according to the present invention; Fig. 9 The present invention is a cross-sectional view of a blowing plug of an ultra-clean barrel blow molding mold device with a circulating water cooling function.

[0020] The names of the components corresponding to the various figure marks in the figure are: 1. mold mechanism; 2. mold shell; 21. water inlet hole; 22. water outlet hole; 23. first annular groove; 24. heat conducting plate; 25. molding groove; 26. circular groove; 3. sensing pressure block; 4. circulating water cooling mechanism; 41. first pipeline; 42. second pipeline; 43. third pipeline; 44. water inlet pipeline; 45. water outlet pipeline; 46. water pump; 5. blowing mechanism; 51. blowing hole; 6. tube-fin heat dissipation mechanism; 61. heat dissipation bracket; 62. connecting pipeline; 63. channel pipe; 64. tube fin; 7. blowing plug; 71. blowing shell; 72. blowing needle; 8. temperature sensor; 9. sealing member; 91. connecting hole. DETAILED DESCRIPTION

[0021] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0023] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0024] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0025] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0026] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0027] See also Figures 1 to 9 The present invention provides an ultra-clean barrel blow molding mold device with a circulating water cooling function, comprising two mold mechanisms 1, and the two mold mechanisms 1 are identical and arranged opposite to each other. The mold mechanism 1 comprises a mold shell 2, a sensor block 3, a circulating water cooling mechanism 4 and a blowing mechanism 5.

[0028] Specifically, a plurality of connection holes 91 are provided on the top and bottom of the mold mechanism 1, and an external moving mechanism can be connected to the blow mold device through the connecting holes 91. The moving mechanism drives the mold mechanism 1 to move by moving, so that the two mold mechanisms 1 are combined.

[0029] exist Figures 1 to 9 In an optional embodiment, the mold shell 2 includes a water inlet hole 21, a water outlet hole 22, a first annular groove 23, a heat conducting plate 24 and a molding groove 25. The water inlet hole 21 is arranged at the bottom of one end of the mold shell 2, and the water outlet hole 22 is arranged at the top of the other end of the mold shell 2. Water can flow in from the water inlet hole 21 and flow out from the water outlet hole 22.

[0030] Meanwhile, the first annular groove 23 is provided inside the mold shell 2, the first annular groove 23 is provided with a plurality of circular grooves 26 along the vertical direction, the water inlet 21 and the water outlet 22 are connected with the first annular groove 23, the forming groove 25 is provided at the center of the mold shell 2, and the heat conducting plate 24 is provided at the top of the mold shell 2. Among them, the forming groove 25 located in one mold mechanism 1 can be used to cooperate with the forming groove 25 located in another mold mechanism 1, so as to form a complete mold.

[0031] exist Figures 1 to 9 In an optional embodiment, the circulating water cooling mechanism 4 includes a first pipe 41, a second pipe 42 and a third pipe 43. The first pipe 41 has multiple first pipes 41, and the multiple first pipes 41 are respectively arranged in multiple circular grooves 26. The second pipe 42 is annular, and the second pipe 42 has two, one second pipe 42 is connected to the top of each first pipe 41, and the other second pipe 42 is connected to the bottom of each first pipe 41. The third pipe 43 is respectively inserted in the water inlet hole 21 and the water outlet hole 22.

[0032] It should be noted that water can flow in from the third pipe 43 set at the water inlet, and then be input into the first pipe 41 and the second pipe 42, and the water can pass through the first pipe 41 and the second pipe 42 and flow out from the third pipe 43 set at the water outlet.

[0033] At the same time, since there are multiple first pipes 41 and each first pipe 41 is disposed in the circular groove 26 , the circular groove 26 can expand the contact area between the first pipe 41 and the mold shell 2 , thereby achieving a better heat conduction effect.

[0034] Furthermore, the circulating water cooling mechanism 4 includes a water inlet pipe 44, a water outlet pipe 45 and a water pump 46. The water inlet pipe 44 is connected to the third pipe 43 at the water inlet hole 21, the water outlet pipe 45 is connected to the third pipe 43 at the water outlet hole 22, one end of the water pump 46 is connected to the water inlet pipe 44, and the other end of the water pump 46 is connected to the water outlet pipe 45.

[0035] Furthermore, a heat dissipation mechanism 6 with tube fins 64 is provided on the water inlet pipe 44. The heat dissipation mechanism 6 with tube fins 64 includes two heat dissipation brackets 61, a plurality of connecting pipes 62 and a plurality of tube fins 64. A plurality of channel pipes 63 are opened inside the heat dissipation bracket 61. The plurality of connecting pipes 62 are respectively arranged between the two heat dissipation brackets 61. The plurality of connecting pipes 62 are respectively connected to the channel pipes 63. The plurality of tube fins 64 are correspondingly connected to the plurality of connecting pipes.

[0036] Among them, water can flow in multiple connecting pipes 62, expanding the flow area of ​​the water. At the same time, the tube fins 64 connected to the connecting pipes can expand the heat conduction area. In an optional embodiment, the experimenter can set a cooling fan in front of the tube fins 64 to increase the cooling speed of the circulating water.

[0037] exist Figures 1 to 9 In an optional embodiment, the blowing mechanism 5 is disposed at the bottom of the mold shell 2 , and the blowing mechanism 5 has two blowing holes 51 .

[0038] The blow molding mold device comprises a blow plug 7 , which comprises a blow housing 71 and a blow needle 72 . The blow needle 72 is inserted into the blow housing 71 , and the blow needle 72 is hollow.

[0039] The two blowing holes 51 are provided with internal threads, and the blowing housing 71 is provided with external threads. When the blow molding mold device is blow-molding, the blowing plug 7 is threadedly connected with the blowing holes 51, and the blowing plug 7 blows air inwards.

[0040] Furthermore, a seal 9 is provided on the outer side of the mold shell 2 , and when the two mold shells 2 are closed, the seal 9 isolates the gas input by the blowing mechanism 5 from leaking.

[0041] exist Figures 1 to 9 In an optional embodiment, the sensing block 3 is connected to the inner wall of the molding groove 25. When the plastic material is placed in the molding groove 25, the moving mechanism can drive the two mold mechanisms 1 to merge, and at the same time, the blowing mechanism 5 blows air into the inside to make the plastic material quickly adhere to the surface of the molding groove 25. The circulating water cooling mechanism 4 can quickly cool the molded plastic material, so that the plastic material can be molded quickly. The block mechanism can be used to detect whether the blowing mechanism 5 has molded the plastic material in place.

[0042] The blow molding mold device includes a temperature sensor 8, which is connected to the inner wall of the molding groove 25 and is disposed adjacent to the sensing block 3. When the mold mechanism 1 exceeds the set threshold of the temperature sensor 8, the temperature sensor 8 transmits an overheating signal to the external control device, and the external control device can accelerate heat dissipation by controlling the water pump 46.

[0043] As with the previous blow mould device, optionally, the blow mould device is connected to an external control device.

[0044] The ultra-clean barrel blow molding mold device with circulating water cooling function of the present invention has the following specific steps: By opening a first annular groove 23 in the mold shell 2, and arranging multiple circular grooves 26 in the first annular groove 23, the first pipe 41 in the circulating water cooling mechanism 4 is arranged in the circular groove 26, and the second pipe 42 is connected to the multiple first pipes 41. The circulating water flow can flow into the first pipe 41 and the second pipe 42 through the third pipe 43 at the water inlet hole 21, and flow out from the third pipe 43 at the water outlet hole 22. The circular groove 26 can expand the contact area between the first pipe 41 and the mold shell 2, thereby improving the heat conduction efficiency. The circulating water cooling mechanism 4 arranged in the first annular groove 23 can quickly cool the plastic material that is close to the inner wall of the molding groove 25 after blowing, thereby ensuring rapid molding of the plastic material.

[0045] The water inlet hole 21 is connected to the water outlet hole 22 through the water inlet pipe 44, and the water outlet pipe 45 is connected to the water pump 46 respectively. The water pump 46 can provide power for the internal water circulation. The water inlet pipe 44 is connected to the tube fin 64 heat dissipation mechanism 6. The circulating water flow can flow in multiple connecting pipes 62 in the tube fin 64 heat dissipation mechanism 6, which effectively expands the flow distance of the circulating water flow and improves the heat dissipation effect; at the same time, the tube fin 64 connected to the connecting pipe 62 can expand the heat dissipation area of ​​each connecting pipe. The technicians can accelerate the cooling of the circulating water by setting a cooling fan on the outside to achieve the effect of circulating cooling and ensure the utilization rate of water resources.

[0046] By arranging the sensing block 3 and the temperature sensor 8 on the inner wall of the molding groove 25 of the mold shell 2, and the sensing block 3 and the temperature sensor 8 are connected to the external temperature control device, the sensing block 3 can detect whether the plastic material is completely attached to the molding groove 25 during the blow molding process to complete the molding work; the temperature sensor 8 can detect the temperature threshold of the mold shell 2. When the temperature is not within the temperature threshold, the control device can adjust the flow rate of the water pump 46, thereby reducing or accelerating the cooling speed of the water circulation. This method can accurately detect whether the blow molding is formed, saving manpower, and can also automatically adjust the cooling speed of the water circulation, thereby reducing the occurrence of failure rate.

[0047] By arranging the sealing member 9 on the mold shell 2, the airtightness of the two mold mechanisms 1 during the blowing process of the blowing mechanism 5 after the two mold mechanisms 1 are combined is ensured.

[0048] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0049] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An ultra-clean barrel blow molding mold device with circulating water cooling function, It is characterized in that include: A mold mechanism (1), wherein the mold mechanism (1) comprises two mold mechanisms (1), the two mold mechanisms (1) are identical, the two mold mechanisms (1) are arranged opposite to each other, and the mold mechanism (1) comprises a mold shell (2), a sensor block (3), a circulating water cooling mechanism (4), and an air blowing mechanism (5); The mold shell (2) comprises a water inlet hole (21), a water outlet hole (22), a first annular groove (23), a heat conducting plate (24) and a molding groove (25); the water inlet hole (21) is arranged at the bottom of one end of the mold shell (2); the water outlet hole (22) is arranged at the top of the other end of the mold shell (2); the first annular groove (23) is opened inside the mold shell (2); the first annular groove (23) is provided with a plurality of circular grooves (26) along the vertical direction; the water inlet hole (21) and the water outlet hole (22) are connected to the first annular groove (23); the molding groove (25) is opened at the center of the mold shell (2); and the heat conducting plate (24) is arranged at the top of the mold shell (2); The circulating water cooling mechanism (4) comprises a first pipe (41), a second pipe (42) and a third pipe (43); the first pipe (41) has a plurality of first pipes (41), and the plurality of first pipes (41) are respectively arranged in the plurality of circular grooves (26); the second pipe (42) is annular, and the second pipe (42) has two, one second pipe (42) is connected to the top of each first pipe (41), and the other second pipe (42) is connected to the bottom of each first pipe (41); the third pipe (43) is respectively inserted into the water inlet hole (21) and the water outlet hole (22); The blowing mechanism (5) is arranged at the bottom of the mold shell (2), and the blowing mechanism (5) has two blowing holes (51); The sensing pressure block (3) is connected to the inner wall of the molding groove (25).

2. The blow molding device according to claim 1, It is characterized in that The circulating water cooling mechanism (4) comprises a water inlet pipe (44), a water outlet pipe (45) and a water pump (46); the water inlet pipe (44) is connected to the third pipe (43) at the water inlet hole (21); the water outlet pipe (45) is connected to the third pipe (43) at the water outlet hole (22); one end of the water pump (46) is connected to the water inlet pipe (44); and the other end of the water pump (46) is connected to the water outlet pipe (45).

3. The blow mold device according to claim 2, It is characterized in that A tube-fin heat dissipation mechanism (6) is provided on the water inlet pipe (44), the tube-fin heat dissipation mechanism (6) comprising two heat dissipation brackets (61), a plurality of connecting pipes (62) and a plurality of tube fins (64), a plurality of channel pipes (63) are provided inside the heat dissipation bracket (61), the plurality of connecting pipes (62) are respectively provided between the two heat dissipation brackets (61), the plurality of connecting pipes (62) are respectively connected to the channel pipes (63), and the plurality of tube fins (64) are correspondingly connected to the plurality of connecting pipes (62).

4. The blow molding mold device according to claim 1, It is characterized in that The blow mould device comprises a blow plug (7), wherein the blow plug (7) comprises a blow shell (71) and a blow needle (72), wherein the blow needle (72) is inserted into the blow shell (71), and the blow needle (72) is hollow.

5. The blow mold device according to claim 4, It is characterized in that The two blowing holes (51) are provided with internal threads, and the blowing housing (71) is provided with external threads. When the blow moulding device is blow moulding, the blowing plug (7) is threadedly connected to the blowing hole (51), and the blowing plug (7) blows air inwards.

6. The blow molding mold device according to claim 1, It is characterized in that The blow molding mold device comprises a temperature sensor (8), wherein the temperature sensor (8) is connected to the inner wall of the molding groove (25), and the temperature sensor (8) is arranged adjacent to the sensing pressure block (3).

7. The blow molding mold device according to claim 1, It is characterized in that A sealing member (9) is provided on the outer side of the mold shell (2); when the two mold shells (2) are closed, the sealing member (9) prevents leakage of gas input by the blowing mechanism (5).

8. The blow molding mold device according to claim 1, It is characterized in that The top and bottom of the mold shell (2) are provided with a plurality of connection holes (91), and an external moving mechanism is connected to the blow molding mold device through the connection holes (91).

9. The blow molding mold device according to claim 1, It is characterized in that The blow molding mold device is connected with an external control device.

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