Multifunctional efficient energy-saving hollow extrusion blow molding machine

Abstract

The invention discloses a multifunctional efficient energy-saving hollow extrusion blow molding machine which comprises a machine frame, blow molding devices are arranged on the left side and the right side of the machine frame, each blow molding device comprises a mold closing assembly and a blow molding assembly, each mold closing assembly comprises a translation seat, a male mold seat, a female mold seat and a mold closing driving mechanism are arranged at the translation seat, and cantilever parts are installed at the male mold seat and the female mold seat. The cantilever part is provided with a first bottle receiving mechanism and a second bottle receiving mechanism; the rack is provided with a first cooling assembly and a second cooling assembly. Compared with the prior art, the injection mold has the advantages that the next bottle body does not need to be subjected to blow molding after the previous bottle body is cooled and demolded, and when the handle and the bottle bottom of the first bottle body are cooled, the inner cavity of the second bottle body can be synchronously cooled, and the second bottle body can be blown at the same time, so that the cooling time of the first bottle body is efficiently utilized; the capacity of the whole machine is remarkably improved, and precision, high efficiency and energy conservation are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of blow molding, and in particular to a multifunctional, high-efficiency and energy-saving hollow extrusion blow molding machine. Background Art

[0002] In the modern plastic processing industry, blow molding is an important plastic molding method. Blow molding mainly involves heating and melting the plastic raw materials, extruding or injecting them into a tubular parison, placing the tubular parison in a mold, and then introducing compressed air to blow it into a hollow plastic product. In the entire process of blow molding, cooling time often occupies a large proportion of the entire molding cycle. For extrusion blow molding products, the cooling time usually accounts for more than 60% of the entire molding cycle, and for thick-walled products, the cooling time even accounts for 90% of the entire molding cycle.

[0003] In-mold cooling is the most commonly used cooling method in the extrusion blow molding process. When the tubular parison is blown in the mold, the plastic melt quickly clings to the mold cavity wall, and the heat of the melt is transferred to the mold wall by heat conduction. The mold wall then transfers the heat to the cooling medium, and the cooling medium takes the heat away by convection, so that the product is gradually cooled and shaped. During production, it is necessary to wait for the previous product to be cooled and demolded before using the mold to blow mold the next product. The waiting time for the next product is longer than that for the previous product, which affects production efficiency. In order to solve this technical problem, we have proposed a multifunctional, efficient and energy-saving hollow extrusion blow molding machine. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a multifunctional, high-efficiency and energy-saving hollow extrusion blow molding machine.

[0005] To achieve the above-mentioned object, the present invention adopts the following technical scheme: a multifunctional, high-efficiency and energy-saving hollow extrusion blow molding machine, comprising a frame, a blow molding device is arranged on both sides of the frame, the blow molding device comprises a clamping assembly and a blow molding assembly, the clamping assembly comprises a translation seat, a male mold seat, a female mold seat, and a clamping drive mechanism for driving the male mold seat and the female mold seat to move toward or away from each other, the male mold seat and the female mold seat are both installed with cantilever parts, and the cantilever parts are provided with a first bottle receiving mechanism and a second bottle receiving mechanism; The frame is provided with a rear frame part, the blow molding assembly is fixedly installed on the rear frame part, the rear frame part is provided with a first cooling assembly, the first cooling assembly is provided with a bottle clamping mechanism for clamping the bottle body to stay briefly on the first cooling assembly, and the distance between the first cooling assembly and the blow molding assembly is equal to the distance between the first bottle receiving mechanism and the second bottle receiving mechanism; The frame is provided with a second cooling assembly, and the distance between the second cooling assembly and the first cooling assembly is equal to the distance between the first cooling assembly and the blow molding assembly; the second cooling assembly is provided with a discharge arm for removing the cooled bottle body.

[0006] It is further explained that the cantilever member is provided with a punching mechanism for punching out the tail of the preform at the first bottle receiving mechanism.

[0007] It is further explained that the frame is provided with a middle frame, and inclined buckets are provided on both sides of the middle frame for conveying the cut-off bottle embryo tail materials. The translation seat of the mold clamping assembly is movably set on the middle frame, and a translation driving mechanism for driving the translation seat to move is installed on the middle frame.

[0008] It is further explained that the frame is provided with a side frame, the oblique bucket is arranged between the middle frame and the side frame, and the bottle bottom cooling mechanism of the second cooling assembly is installed at the side frame.

[0009] It is further explained that the blow molding assembly includes a blow molding lifting drive cylinder, a blow molding lifting seat, and a fixedly arranged stripper plate. The telescopic rod of the blow molding lifting drive cylinder is connected to the blow molding lifting seat. A blow molding rod is installed at the blow molding lifting seat, and the blow molding rod is passed through the stripper plate.

[0010] To further explain, the first cooling assembly includes a first lifting cylinder and a first lifting seat, the telescopic rod of the first lifting cylinder is connected to the first lifting seat, the first lifting seat is equipped with a cooling rod for extending into the bottle body to cool it, and the bottle clamping mechanism is installed at the first lifting seat.

[0011] It is further explained that the second cooling assembly includes a second lifting cylinder and a second lifting seat, the telescopic rod of the second lifting cylinder is connected to the second lifting seat, and an upper cooling block of the handle for cooling the bottle body is installed at the second lifting seat.

[0012] It is further explained that the bottle bottom cooling mechanism of the second cooling assembly includes a third lifting cylinder and a third lifting seat. The third lifting cylinder is arranged below the second lifting cylinder. The telescopic rod of the third lifting cylinder is connected to the third lifting seat. The third lifting seat is equipped with a lower cooling block for cooling the bottom of the bottle body.

[0013] The beneficial effect of the present invention is that compared with the prior art, the present invention does not need to wait for the previous bottle body to be cooled and demolded before blow molding the next bottle body. When the handle and the bottom of the first bottle body are cooled, the inner cavity of the second bottle body can be cooled synchronously, and the second bottle body can be blown out at the same time, thereby making efficient use of the cooling time of the first bottle body, significantly improving the production capacity of the whole machine, and achieving precise and efficient energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the front structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the rear structure of the present invention.

[0016] Figure 3 It is a schematic structural diagram of the present invention when the first bottle body is blown.

[0017] Figure 4 It is a schematic structural diagram of the present invention when the blow molding component is separated from the first bottle body.

[0018] Figure 5 It is a schematic structural diagram of the present invention when the second bottle body is prepared for blowing after the mold assembly is molded.

[0019] Figure 6 It is a structural schematic diagram of the present invention in which the mold is opened after the second bottle body is blown.

[0020] Figure 7 It is a schematic structural diagram of the present invention when the blow molding component is separated from the second bottle body.

[0021] Figure 8 It is a schematic structural diagram of the present invention when the third bottle body is blown.

[0022] Fig. 9 It is a structural schematic diagram of the present invention in which the mold is opened after the third bottle body is blown.

[0023] Fig.10 It is a schematic diagram of the structure of the mold clamping component.

[0024] Fig.11 Schematic diagram of the structure of the blow molding component.

[0025] Fig.12 It is a schematic structural diagram of the first cooling component.

[0026] Fig.13 It is a schematic structural diagram of the second cooling component.

[0027] Figure Number: 10. Frame; 11. Rear frame; 12. Middle frame; 13. Oblique bucket; 14. Translation drive mechanism; 15. Side frame; 20. Blow molding device; 30. Mold clamping assembly; 31. Male mold base; 32. Female mold base; 33. Translation base; 34. Mold clamping drive mechanism; 341. Mold clamping drive hydraulic cylinder; 342. First connecting rod; 343. Second connecting rod; 35. Cantilever member; 36. First bottle receiving mechanism; 361. First left holding block; 362. First right holding block; 37. Second bottle receiving mechanism; 371. Second left holding block; 372. Second right holding block; 3 8. Punching mechanism; 40. Blow molding assembly; 41. Blow molding lifting drive cylinder; 42. Blow molding lifting seat; 43. Stripping plate; 44. Blow molding rod; 50. First cooling assembly; 51. First lifting cylinder; 52. First lifting seat; 53. Cooling rod; 54. Bottle clamping mechanism; 60. Second cooling assembly; 61. Second lifting cylinder; 62. Second lifting seat; 63. Upper cooling block; 64. Third lifting cylinder; 65. Third lifting seat; 66. Lower cooling block; 70. Unloading arm; P1. First bottle body; P2. Second bottle body; P3. Third bottle body. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Combined with Figure 1 and attached Figure 2 As shown, a synchronous cooling blow molding machine includes a frame 10, and a blow molding device 20 is provided on both sides of the frame 10. The blow molding device 20 includes a mold clamping component 30 and a blow molding component 40. Fig.10 As shown, the mold clamping assembly 30 includes a translation seat 33, on which a male mold seat 31, a female mold seat 32, and a mold clamping driving mechanism 34 for driving the male mold seat 31 and the female mold seat 32 to move toward or away from each other are arranged. The male mold base 31 and the female mold base 32 are respectively installed with the male mold and the female mold of the blow mold. The mold closing drive mechanism 34 specifically includes a mold closing drive hydraulic cylinder 341, a first connecting rod 342, and a second connecting rod 343. The cylinder body of the mold closing drive hydraulic cylinder 341 is hinged to one end of the first connecting rod 342, and the other end of the first connecting rod 342 is hinged to the male mold base 31. The telescopic rod of the mold closing drive hydraulic cylinder 341 is hinged to one end of the second connecting rod 343, and the other end of the second connecting rod 343 is hinged to the female mold base 32.

[0030] As attached Fig.10As shown, cantilever members 35 are installed at both the male mold base 31 and the female mold base 32. The cantilever member 35 is provided with a first bottle receiving mechanism 36 and a second bottle receiving mechanism 37. The cantilever member 35 is provided with a punching mechanism 38 for punching the preform tail material at the first bottle receiving mechanism 36. The first bottle receiving mechanism 36 and the second bottle receiving mechanism 37 specifically adopt a structural design principle similar to holding up with both hands. The first bottle receiving mechanism 36 is provided with a first left holding block 361 and a first right holding block 362 respectively installed at different cantilever parts, and the second bottle receiving mechanism 37 is provided with a second left holding block 371 and a second right holding block 372 respectively installed at different cantilever parts. When the male mold base 31 and the female mold base 32 are combined, the cantilever parts at the male mold base 31 and the cantilever parts at the female mold base 32 move towards each other, and the first left holding block 361 and the first right holding block 362 of the first bottle receiving mechanism 36 can be combined to hold one bottle body, and the second left holding block 371 and the second right holding block 372 of the second bottle receiving mechanism 37 can be combined to hold another bottle body.

[0031] Combined with Figure 1 , Attachment Figure 2 and attached Fig.12 As shown, the frame 10 is provided with a rear frame portion 11, the blow molding assembly 40 is fixedly installed at the rear frame portion 11, the rear frame portion 11 is provided with a first cooling assembly 50, the first cooling assembly 50 is provided with a bottle clamping mechanism 54 for clamping the bottle body to stay briefly at the first cooling assembly 50, and the distance between the first cooling assembly 50 and the blow molding assembly 40 is equal to the distance between the first bottle receiving mechanism 36 and the second bottle receiving mechanism 37; Combined with Figure 1 , Attachment Figure 2 and attached Fig.13 As shown, the frame 10 is provided with a second cooling assembly 60, and the distance between the second cooling assembly 60 and the first cooling assembly 50 is equal to the distance between the first cooling assembly 50 and the blow molding assembly 40; the second cooling assembly 60 is provided with a discharge arm 70 for removing the cooled bottle body. The discharge arm 70 is specifically provided with a suction cup for sucking the cooled bottle body.

[0032] The frame 10 is provided with a middle frame 12, and oblique buckets 13 for conveying the cut bottle preform tails are provided on both sides of the middle frame 12. The translation seat 33 of the clamping assembly 30 is movably arranged on the middle frame 12, and a translation driving mechanism 14 for driving the translation seat 33 to move is installed on the middle frame 12. The translation driving mechanism 14 is specifically a screw driven by a motor, and a slide rail is specifically arranged below the translation seat 33. The translation driving mechanism 14 drives the translation seat 33 to move horizontally. The frame 10 is provided with a side frame 15, and the oblique bucket 13 is arranged between the middle frame 12 and the side frame 15. The bottle bottom cooling mechanism of the second cooling assembly 60 is installed on the side frame 15.

[0033] Combined with Figure 1 and attached Fig.11As shown, the blow molding assembly 40 includes a blow molding lifting drive cylinder 41, a blow molding lifting seat 42, and a fixed stripper plate 43. The telescopic rod of the blow molding lifting drive cylinder 41 is connected to the blow molding lifting seat 42. A blow molding rod 44 is installed at the blow molding lifting seat 42, and the blow molding rod 44 is penetrated by the stripper plate 43. When the blow molding lifting drive cylinder 41 drives the blow molding lifting seat 42 to move upward, the blow molding rod 44 moves upward relative to the stripper plate 43 under the drive of the blow molding lifting seat 42. When moving upward, the stripper plate 43 blocks the bottle body at the blow molding rod 44, thereby separating the bottle body from the blow molding rod 44.

[0034] Combined with Figure 1 and attached Fig.12 As shown, the first cooling assembly 50 includes a first lifting cylinder 51 and a first lifting seat 52. The telescopic rod of the first lifting cylinder 51 is connected to the first lifting seat 52. The first lifting seat 52 is equipped with a cooling rod 53 for extending into the bottle body to cool it. The bottle clamping mechanism 54 is installed at the first lifting seat 52.

[0035] Combined with Figure 1 and attached Fig.13 As shown, the second cooling assembly 60 includes a second lifting cylinder 61 and a second lifting seat 62. The telescopic rod of the second lifting cylinder 61 is connected to the second lifting seat 62. The second lifting seat 62 is provided with an upper cooling block 63 for cooling the handle of the bottle body.

[0036] The bottle bottom cooling mechanism of the second cooling assembly 60 includes a third lifting cylinder 64 and a third lifting seat 65. The third lifting cylinder 64 is arranged below the second lifting cylinder 61. The telescopic rod of the third lifting cylinder 64 is connected to the third lifting seat 65. A lower cooling block 66 for cooling the bottle bottom of the bottle body is installed at the third lifting seat 65. The second lifting cylinder 61 is specifically installed on the rear frame part 11 of the frame 10, and the third lifting cylinder is specifically installed on the side frame 15 of the frame 10.

[0037] Specific working method: The blow molding devices 20 on both sides of the blow molding machine can operate independently at the same time. In the specific working process of the blow molding device 20, the steps are as follows: S1, the male mold and the female mold of the mold clamping assembly 30 are combined, and the blow molding rod 44 of the blow molding assembly 40 is inserted into the mold of the mold clamping assembly 30 for blow molding to blow out the first bottle body P1, and then the male mold and the female mold of the mold clamping assembly 30 are opened, and the cantilever part of the male mold base 31 and the cantilever part of the female mold base 32 are separated. Figure 3 As shown, the blow molding rod 44 is still clamped on the bottle mouth of the first bottle body P1, and the first bottle body P1 is in a suspended state; S2, as attached Figure 4As shown, the translation seat 33 of the mold clamping assembly 30 is translated to the right by one station, so that the first bottle receiving mechanism 36 at the cantilever member 35 is aligned with the blow molding assembly 40, and the first bottle body P1 is located at the first bottle receiving mechanism 36; Then, the male and female molds of the clamping assembly 30 are combined again, and the attached Fig.11 As shown, the blow molding assembly 40 separates the blow molding rod 44 from the first bottle body P1 through the stripper plate 43, the first bottle receiving mechanism 36 receives the first bottle body P1, and then the punching mechanism 38 at the first bottle receiving mechanism 36 punches the preform tail of the first bottle body P1, and the cut preform tail falls into the inclined bucket 13 and is guided outward through the inclined bucket 13; S3, as attached Figure 5 As shown, the translation seat 33 of the mold clamping assembly 30 drives the first bottle body P1 to translate to the left by one station, so that the blow molding assembly 40 is opposite to the mold clamping assembly 30, and the first bottle receiving mechanism 36 at the cantilever member 35 is aligned with the first cooling assembly 50, and the first bottle body P1 is located at the first cooling assembly 50; Subsequently, the blow molding rod 44 of the blow molding assembly 40 is inserted into the mold of the clamping assembly 30 again for blow molding to blow out the second bottle body P2; Fig.12 As shown, the bottle clamping mechanism 54 at the first cooling assembly 50 clamps the handle of the first bottle body P1 downward, and the cooling rod 53 of the first cooling assembly 50 extends into the first bottle body P1, thereby cooling the inner cavity of the first bottle body P1; S4. Combined with attachment Figure 6 and attached Fig.11 As shown, the male mold and the female mold of the mold clamping assembly 30 are opened again, and the cantilever member of the male mold base 31 and the cantilever member of the female mold base 32 are separated again, so that the first bottle body P1 is temporarily suspended at the first cooling assembly 50, and the blow molding rod 44 clamps the bottle mouth of the second bottle body P2, and the second bottle body P2 is in a suspended state; S5, as attached Figure 7 As shown, the translation seat 33 of the mold clamping assembly 30 is translated to the right by one station, so that the first bottle receiving mechanism 36 at the cantilever member 35 is aligned with the blow molding assembly 40, the second bottle body P2 is located at the first bottle receiving mechanism 36, and the first bottle body P1 is located at the second bottle receiving mechanism 37; Then, the male and female molds of the clamping assembly 30 are combined again, and the attached Fig.11 As shown, the blow molding assembly 40 separates the blow molding rod 44 from the second bottle body P2 through the stripper plate 43, the first bottle receiving mechanism 36 receives the second bottle body P2, and the punching mechanism 38 at the first bottle receiving mechanism 36 punches the preform tail of the second bottle body P2, and the cut preform tail falls into the inclined bucket 13 and is guided outward through the inclined bucket 13; And the bottle clamping mechanism 54 at the first cooling assembly 50 releases the handle of the first bottle body P1, and the second bottle receiving mechanism 37 receives the first bottle body P1; S6, as attached Figure 8 As shown, the translation seat 33 of the mold clamping assembly 30 drives the first bottle body P1 and the second bottle body P2 to translate to the left by one station, so that the first bottle receiving mechanism 36 is aligned with the first cooling assembly 50, and the second bottle receiving mechanism 37 is aligned with the second cooling assembly 60. The second bottle body P2 is located at the first cooling assembly 50, and the first bottle body P1 is located at the second cooling assembly 60; Subsequently, the blow molding rod 44 of the blow molding assembly 40 is inserted into the mold of the mold clamping assembly 30 again for blow molding to blow out a third bottle body P3; At the same time, the bottle clamping mechanism 54 at the first cooling assembly 50 clamps the handle of the second bottle body P2 downward, and the cooling rod 53 of the first cooling assembly 50 extends into the second bottle body P2, thereby cooling the inner cavity of the second bottle body P2; The upper cooling block 63 of the second cooling assembly 60 cools the handle of the first bottle body P1, and the lower cooling block 66 of the second cooling assembly 60 cools the bottom of the first bottle body P1; S7, combined with Fig. 9 and attached Fig.11 As shown, the male mold and the female mold of the mold clamping assembly 30 are opened again, and the cantilever member of the male mold base 31 and the cantilever member of the female mold base 32 are separated again, so that the second bottle body P2 is temporarily suspended at the first cooling assembly 50, and the blow molding rod 44 clamps the bottle mouth of the third bottle body P3, and the third bottle body P3 is in a suspended state; S8, when the second cooling assembly 60 finishes cooling the first bottle body P1, the cooling work of the first bottle body P1 is completely completed, and then the unloading arm 70 takes out the first bottle body P1 that has finished cooling; The second bottle body P2, the third bottle body P3 and other subsequent bottle bodies repeat the entire process of the first bottle body P1 from blowing to cooling.

[0038] Compared with the prior art, the present invention does not need to wait for the previous bottle body to be cooled and demolded before blow molding the next bottle body. When the handle and the bottom of the first bottle body P1 are cooled, the inner cavity of the second bottle body P2 can be cooled synchronously, and the third bottle body P3 can be blown out at the same time, thereby making efficient use of the cooling time of the first bottle body P1 and significantly improving the production capacity of the whole machine.

[0039] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention.

[0040] It should be understood that the present invention uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0041] The above description does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A multifunctional, high-efficiency and energy-saving hollow extrusion blow molding machine, comprising a frame (10), characterized in that: Blow molding devices (20) are provided on both left and right sides of the frame (10), the blow molding devices (20) comprising a clamping assembly (30) and a blow molding assembly (40), the clamping assembly (30) comprising a translation seat (33), the translation seat (33) being provided with a male mold seat (31), a female mold seat (32), and a clamping drive mechanism (34) for driving the male mold seat (31) and the female mold seat (32) to move toward or away from each other, the male mold seat (31) and the female mold seat (32) being provided with cantilever members (35), the cantilever members (35) being provided with a first bottle receiving mechanism (36) and a second bottle receiving mechanism (37); The frame (10) is provided with a rear frame portion (11), the blow molding assembly (40) is fixedly mounted on the rear frame portion (11), the rear frame portion (11) is provided with a first cooling assembly (50), the first cooling assembly (50) is provided with a bottle clamping mechanism (54) for clamping a bottle body and allowing it to temporarily stay at the first cooling assembly (50), and the distance between the first cooling assembly (50) and the blow molding assembly (40) is equal to the distance between the first bottle receiving mechanism (36) and the second bottle receiving mechanism (37); The frame (10) is provided with a second cooling assembly (60), and the distance between the second cooling assembly (60) and the first cooling assembly (50) is equal to the distance between the first cooling assembly (50) and the blow molding assembly (40); the second cooling assembly (60) is provided with a discharge arm (70) for removing the bottle body that has completed cooling.

2. A multifunctional, high-efficiency and energy-saving hollow extrusion blow molding machine according to claim 1, characterized in that: The cantilever member (35) is provided with a punching mechanism (38) for punching out bottle embryo tail material at the first bottle receiving mechanism (36).

3. The multifunctional, high-efficiency and energy-saving hollow extrusion blow molding machine according to claim 1, characterized in that: The frame (10) is provided with a middle frame (12), and oblique buckets (13) for conveying the cut-off bottle embryo tails are provided on both sides of the middle frame (12), and the translation seat (33) of the mold clamping assembly (30) is movably arranged on the middle frame (12), and a translation driving mechanism (14) for driving the translation seat (33) to move is installed on the middle frame (12).

4. The multifunctional, high-efficiency and energy-saving hollow extrusion blow molding machine according to claim 3 is characterized in that: The frame (10) is provided with a side frame (15), the inclined bucket (13) is arranged between the middle frame (12) and the side frame (15), and the bottle bottom cooling mechanism of the second cooling assembly (60) is installed on the side frame (15).

5. The multifunctional, high-efficiency and energy-saving hollow extrusion blow molding machine according to claim 1, characterized in that: The blow molding assembly (40) comprises a blow molding lifting drive cylinder (41), a blow molding lifting seat (42), and a fixedly arranged stripper plate (43); the telescopic rod of the blow molding lifting drive cylinder (41) is connected to the blow molding lifting seat (42); a blow molding rod (44) is installed at the blow molding lifting seat (42); and the blow molding rod (44) is inserted into the stripper plate (43).

6. The multifunctional, high-efficiency and energy-saving hollow extrusion blow molding machine according to claim 1, characterized in that: The first cooling assembly (50) comprises a first lifting cylinder (51) and a first lifting seat (52); a telescopic rod of the first lifting cylinder (51) is connected to the first lifting seat (52); a cooling rod (53) is installed at the first lifting seat (52) for extending into the interior of the bottle body to cool it; and the bottle clamping mechanism (54) is installed at the first lifting seat (52).

7. The multifunctional, high-efficiency and energy-saving hollow extrusion blow molding machine according to claim 1, characterized in that: The second cooling assembly (60) comprises a second lifting cylinder (61) and a second lifting seat (62); the telescopic rod of the second lifting cylinder (61) is connected to the second lifting seat (62); and an upper cooling block (63) for cooling the handle of the bottle body is installed on the second lifting seat (62).

8. The multifunctional, high-efficiency and energy-saving hollow extrusion blow molding machine according to claim 7, characterized in that: The bottle bottom cooling mechanism of the second cooling assembly (60) comprises a third lifting cylinder (64) and a third lifting seat (65); the third lifting cylinder (64) is arranged below the second lifting cylinder (61); the telescopic rod of the third lifting cylinder (64) is connected to the third lifting seat (65); and a lower cooling block (66) for cooling the bottle bottom of the bottle body is installed on the third lifting seat (65).

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