A plastic hollow blow molding device

Abstract

The present application relates to the field of plastic blow molding, disclose a kind of plastic hollow blow molding device, including cabinet and mould, it is characterized in that: the cabinet is set by overturning structure Multiple sets of mould, the feeding structure is set in the middle of the front side of the cabinet, the fixed plate is fastened on the left side inner wall top of the cabinet, the material spraying structure is set in one corner of the fixed plate, the air blowing structure is set in another corner of the fixed plate, material spraying structure, air blowing structure and feeding structure are set on the fixed plate of the cabinet, the overturning of multiple sets of mould is driven by overturning structure, multiple sets of mould can be switched to material spraying position, blow molding position and blanking position respectively, so that material spraying, blow molding, cold cutting and blanking work can be carried out simultaneously, reasonably utilize working time, greatly improve work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic blow molding, in particular to a plastic hollow blow molding device. BACKGROUND

[0002] Plastic blow molding is a molding process for manufacturing hollow plastic products. Its core principle is to form a tubular parison by extruding or injection molding molten plastic (such as polyethylene, polypropylene, etc.), then put the parison into the mold while hot, and inflate it by compressed air to tightly adhere to the inner wall of the mold, and after cooling, a hollow product with the same shape as the mold is obtained; plastic blow molding uses a hollow blow molding device;

[0003] In the actual blow molding process, the material needs to be sprayed into the mold first, then the mold is moved to the air outlet pipe, and the blow molding is performed by using the air outlet pipe, and after cooling and forming, the formed plastic product is taken out from the mold, which results in a long time consumption in the entire blow molding process, and during the blow molding process, the spraying, blow molding and cooling work cannot be continuously performed, and the working time is not reasonably utilized, therefore, there is room for improvement. SUMMARY

[0004] In order to solve the problems raised in the background art, the present application provides a plastic hollow blow molding device.

[0005] The plastic hollow blow molding device provided by the present application adopts the following technical scheme:

[0006] A plastic hollow blow molding device, comprising a machine case and a mold, a plurality of molds are arranged on the machine case through a turnover structure, a feeding structure is arranged on the front side of the machine case, a fixed plate is fastened to the upper side of the left side inner wall of the machine case, a spraying structure is arranged at one corner of the fixed plate, and a gas blowing structure is arranged at another corner of the fixed plate;

[0007] The turnover structure comprises two vertical plates fastened to the upper side of the machine case through bolts, a turnover rod is rotatably arranged on the two vertical plates, a through hole is formed in the fixed plate for the turnover rod to pass through, an installation sleeve is fixedly arranged on the turnover rod, a plurality of U-shaped plates are fastened to the installation sleeve through screws, the plurality of U-shaped plates are distributed at equal angles on the circumference of the installation sleeve, two molds are arranged at the end of the U-shaped plate away from the installation sleeve through a first driving structure, a first motor is installed on one of the vertical plates, and the output shaft of the first motor is connected with the turnover rod.

[0008] The first driving structure comprises a plurality of air cylinders mounted on the mounting sleeve, the air cylinder output shaft one end is provided with a driving frame, the both sides of the U-shaped plate are provided with a through slot, the through slot is movably provided with a first through strip, one end of the first through strip is connected to the mold, the other end of the first through strip is provided with a driving plate, the driving plate is provided with a first driving slot, the driving frame is fixedly provided with two first driving rods, the first driving rod movably passes through the first driving slot.

[0009] Preferably, the material spraying structure comprises a first mounting plate arranged at one corner of the fixed plate, a storage tank is mounted on the first mounting plate, a spray head is mounted on the storage tank, a feeding pipe is arranged on the storage tank, and a stirring structure and a material turning structure are arranged in the storage tank.

[0010] Preferably, the air blowing structure comprises a second mounting plate arranged at another corner of the fixed plate, the second mounting plate is fixedly provided with an air outlet pipe, and the fixed plate is provided with a second driving structure.

[0011] Preferably, the second driving structure comprises a fixed block connected to the fixed plate, an electric push rod is arranged on the top surface of the fixed block, the output shaft top end of the electric push rod is connected to a mounting block, a horizontal plate is mounted on the mounting block, a horizontal slot is formed in the horizontal plate, two movable blocks are slidably arranged in the horizontal slot, one of the movable blocks is connected to the first mounting plate, the other movable block is connected to the second mounting plate, a second driving rod is connected to the movable block, two inclined slots are formed in the fixed plate, and the two second driving rods movably pass through the two inclined slots respectively.

[0012] Preferably, the feeding structure comprises a support fastened to the machine box by bolts, a feeding table is arranged at the top end of the support, two first rotating rods are rotatably arranged at both ends of the feeding table, and a feeding belt is tightly sleeved between the two first rotating rods, a transmission structure is arranged between one of the first rotating rods and the turnover rod, a receiving plate is mounted on the top surface of the feeding table close to the machine box, and the receiving plate is downwardly inclined towards the feeding table.

[0013] Preferably, the transmission structure comprises a first belt pulley fixedly sleeved on one of the first rotating rods, a second belt pulley is fixedly sleeved on the turnover rod, a first belt is tightly sleeved between the first belt pulley and the second belt pulley, and the size of the second belt pulley is five times the size of the first belt pulley.

[0014] Preferably, the stirring structure comprises a first inner slot formed in the upper part of the storage tank, a second motor is mounted in the first inner slot, the output shaft one end of the second motor is connected to a second rotating rod rotatably inserted into the storage tank, and a plurality of stirring rods are connected to the second rotating rod.

[0015] Preferably, the material turning structure comprises a second inner groove opened below the storage tank, a groove wall of the second inner groove movably penetrates a plurality of second penetrating rods, a rotating groove is opened on the second penetrating rod near the top end, a fourth rotating rod movably penetrates the rotating groove, a rotating block is fixedly sleeved on the fourth rotating rod, the rotating block is a disc-shaped block, a connecting block is arranged on the side surface of the rotating block, the connecting block is provided with a material turning block at one end, the bottom end of each second penetrating rod is connected with a connecting rod, the bottom end of the connecting rod is connected with a lifting ring, an electric telescopic rod is mounted on the lower groove wall of the second inner groove, the output shaft of the electric telescopic rod is connected with the lifting ring, and a third driving structure is arranged between the second penetrating rod and the storage tank.

[0016] Preferably, the third driving structure comprises a through groove opened on the second penetrating rod near the bottom end, a penetrating groove is opened on the front and rear sides of the groove wall of the through groove, the two ends of the fourth rotating rod are movably inserted into the two penetrating grooves, respectively, a third rotating rod is movably connected between the two side groove walls of the through groove, a gear is fixedly sleeved on the third rotating rod, a guide groove is opened in the middle of the groove wall of the through groove, a driving block movably penetrates the guide groove, the driving block is provided with gear teeth meshing connected with the gear, third belt pulleys are fixedly sleeved on the two ends of the third rotating rod and the fourth rotating rod, respectively, a second belt is tightly sleeved between each two third belt pulleys, two fixed rods are connected on the driving block, one end of the fixed rod is fixedly penetrated through a third driving rod, a side plate is arranged on the groove wall of the second inner groove near the second penetrating rod, a vertical groove is opened on the side plate, the third driving rod movably penetrates the vertical groove, a second driving groove is opened on the side plate and is communicated with the upper end of the vertical groove, and a third driving groove is opened on the side plate and is communicated with the bottom end of the vertical groove.

[0017] In summary, the present application has the following beneficial technical effects:

[0018] 1. The present application sets a plurality of molds on the case through the turnover structure, sets a material spraying structure, a gas blowing structure and a feeding structure on the fixed plate of the case, drives the turnover of the plurality of molds through the turnover structure, and can switch the plurality of molds to the material spraying position, the blow molding position and the discharging position respectively, so that the material spraying, blow molding, cold cutting and discharging work can be carried out at the same time, the working time is reasonably utilized, and the working efficiency is greatly improved.

[0019] 2. The first driving structure is arranged, and each two molds can be automatically closed and opened for discharging work.

[0020] 3. The transmission structure is arranged, and the feeding belt on the feeding structure can be automatically rotated through the transmission structure when the turnover column of the turnover structure rotates to switch the molds.

[0021] 4、The second driving structure is arranged, when the two groups of molds are moved to the material spraying position and the blow molding position, the third driving structure can drive the air pipe and the spray head to insert into the corresponding mold synchronously, and the material spraying and blow molding work can be carried out;

[0022] 5、The stirring structure, the material turning structure and the third driving structure are arranged, the stirring structure is used for stirring the plastic in the storage tank, the plastic melting is accelerated, the second penetrating strip can drive the turnover block to automatically turn upward when moving upward, so that the plastic in the storage tank is turned, the plastic melting work efficiency is improved, the turnover block can be driven to turn downward when the second penetrating strip moves downward, the molten plastic in the storage tank is pushed out in time when the material is sprayed, and the discharging is more complete. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structure schematic view of a plastic hollow blow molding device in the embodiment of the present application;

[0024] Figure 2 is an enlarged view of structure A of Figure 1 in the embodiment of the present application;

[0025] Figure 3 is a structure schematic view of a turnover rod in the embodiment of the present application;

[0026] Figure 4 is an enlarged view of structure B of Figure 3 in the embodiment of the present application;

[0027] Figure 5 is a structure schematic view of a fixed plate in the embodiment of the present application;

[0028] Figure 6 is an enlarged view of structure C of Figure 5 in the embodiment of the present application;

[0029] Figure 7 is a structure schematic view of a storage tank in the embodiment of the present application;

[0030] Figure 8 is a structure schematic view of the inside of the storage tank in the embodiment of the present application;

[0031] Figure 9 is an enlarged view of structure D of Figure 8 in the embodiment of the present application;

[0032] Figure 10 is an enlarged view of structure E of Figure 8 in the embodiment of the present application.

[0033] Explanation of reference signs: 1, case; 2, vertical plate; 3, first motor; 4, turnover rod; 5, U-shaped plate; 6, mounting sleeve; 7, mold; 8, fixed plate; 9, air cylinder; 10, first penetrating strip; 11, penetrating groove; 12, driving frame; 13, first driving rod; 14, driving plate; 15, first driving groove; 16, penetrating hole; 17, first mounting plate; 18, storage tank; 19, spray head; 20, second mounting plate; 21, air outlet pipe; 22, fixed block; 23, electric push rod; 24, mounting block; 25, cross plate; 26, moving block; 27, cross groove; 28, second driving rod; 29, inclined groove; 30, support; 31, feeding table; 32, first rotating rod; 33, feeding belt; 34, material receiving plate; 35, first pulley; 36, second pulley; 37, first belt; 38, feeding pipe; 39, first inner groove; 40, second motor; 41, second rotating rod; 42, stirring rod; 43, second inner groove; 44, electric telescopic rod; 45, lifting ring; 46, connecting rod; 47, second penetrating strip; 48, rotating groove; 49, rotating block; 50, material overturning block; 51, through groove; 52, third rotating rod; 53, gear; 54, driving block; 55, guide groove; 56, fixed strip; 57, third driving rod; 58, side plate; 59, vertical groove; 60, second driving groove; 61, third driving groove; 62, third pulley; 63, second belt. DETAILED DESCRIPTION

[0034] The following will be described in detail below with reference to the accompanying drawings Figures 1-10 The application will be further described in detail.

[0035] The application discloses a plastic hollow blow molding device. Figures 1-10 A plastic hollow blow molding device, comprising a case 1 and a mold 7, a plurality of molds 7 are arranged on the case 1 through a turnover structure, a feeding structure is arranged on the front side of the case 1, a fixed plate 8 is fastened to the upper side of the inner wall of the left side of the case 1, a material spraying structure is arranged at one corner of the fixed plate 8, and a gas blowing structure is arranged at another corner of the fixed plate 8;

[0036] The turnover structure comprises two vertical plates 2 fastened to the upper side of the case 1 through bolts, a turnover rod 4 rotatably penetrates through the two vertical plates 2, a penetrating hole 16 is formed in the fixed plate 8 and used for allowing the turnover rod 4 to movably penetrate through, a mounting sleeve 6 is fixedly sleeved on the middle of the turnover rod 4, a plurality of U-shaped plates 5 are fastened to the mounting sleeve 6 through screws, the plurality of U-shaped plates 5 are distributed at equal angles on the mounting sleeve 6, two molds 7 are arranged at the ends of the U-shaped plates 5 away from the mounting sleeve 6 through a first driving structure, a first motor 3 is installed on one of the vertical plates 2, and the output shaft of the first motor 3 is connected with the turnover rod 4;

[0037] The first driving structure comprises a plurality of air cylinders 9 mounted on the mounting sleeve 6, the air cylinder 9 is provided with a driving frame 12 at one end of the output shaft, a through slot 11 is formed on each side surface of the U-shaped plate 5, a first through strip 10 is movably arranged in the through slot 11, one end of the first through strip 10 is connected to the mold 7, the other end of the first through strip 10 is provided with a driving plate 14, a first driving slot 15 is formed on the driving plate 14, and two first driving rods 13 are fixedly arranged through the driving frame 12 and movably arranged through the first driving slot 15;

[0038] The material spraying structure comprises a first mounting plate 17 arranged at one corner of the fixed plate 8, a storage tank 18 is mounted on the first mounting plate 17, a spray head 19 is mounted on the storage tank 18, a feeding pipe 38 is arranged on the storage tank 18, and stirring structure and material turning structure are arranged in the storage tank 18;

[0039] The air blowing structure comprises a second mounting plate 20 arranged at another corner of the fixed plate 8, and an air outlet pipe 21 is fixedly arranged through the second mounting plate 20; and the fixed plate 8 is provided with a second driving structure;

[0040] The second driving structure comprises a fixed block 22 connected to the fixed plate 8, an electric push rod 23 is arranged on the upper surface of the fixed block 22, an output shaft top end of the electric push rod 23 is connected to a mounting block 24, a horizontal plate 25 is mounted on the mounting block 24, a horizontal slot 27 is formed on the horizontal plate 25, two moving blocks 26 are slidably arranged in the horizontal slot 27, one of the moving blocks 26 is connected to the first mounting plate 17, the other moving block 26 is connected to the second mounting plate 20, a second driving rod 28 is connected to the moving block 26, two inclined slots 29 are formed on the fixed plate 8, and the two second driving rods 28 are movably arranged through the two inclined slots 29; first, the first motor 3 on the vertical plate 2 is started to drive the turnover rod 4 to rotate, and a plurality of molds 7 are switched to the material spraying position, the blow molding position and the material discharging position respectively; at this time, the electric push rod 23 on the fixed block 22 is started to drive the horizontal plate 25 to move downward, and the second driving rod 28 is used to slide in the inclined slot 29, so as to drive the storage tank 18 and the air outlet pipe 21 to move along the direction of the two inclined slots 29, and the spray head 19 and the air outlet pipe 21 are inserted into the corresponding mold 7 to perform the material spraying and blow molding work; at the same time, the plastic in the other group of molds 7 is cooled after blow molding, and after cooling, the cylinder 9 at the corresponding position is started to drive the driving frame 12 to move upward, the driving frame 12 is used to drive the first driving rod 13 to slide in the first driving slot 15 to push away the corresponding two molds 7, and the plastic products formed in the molds 7 fall onto the material receiving plate 34 and are discharged to the feeding belt 33 through the material receiving plate 34 for automatic feeding, so that the material spraying, blow molding, cooling and discharging of the plastic can be performed at the same time, the working time is reasonably utilized, and the working efficiency is improved.

[0041] Referring to Figure 1 and Figure 2The feeding structure comprises a support 30 fastened on the cabinet 1 by bolts, a feeding table 31 arranged at the top end of the support 30, two first rotating rods 32 rotatably penetrating through the feeding table 31 at two ends thereof, a feeding belt 33 sleeved on the two first rotating rods 32, a transmission structure arranged between one of the first rotating rods 32 and the turnover rod 4, and a receiving plate 34 installed on the feeding table 31 and inclined downward toward the feeding table 31 at a position close to the cabinet 1;

[0042] The transmission structure comprises a first belt pulley 35 fixedly sleeved on one of the first rotating rods 32, a second belt pulley 36 fixedly sleeved on the turnover rod 4, and a first belt 37 sleeved between the first belt pulley 35 and the second belt pulley 36, wherein the second belt pulley 36 is five times larger in size than the first belt pulley 35; when the first motor 3 drives the turnover rod 4 to rotate, the first rotating rod 32 is driven to rotate through the first belt pulley 35, the second belt pulley 36 and the first belt 37, so as to drive the feeding belt 33 to rotate, thereby realizing automatic feeding of the formed plastic products.

[0043] Referring to Figures 8-9 The stirring structure comprises a first inner groove 39 arranged in the upper portion of the storage tank 18, a second motor 40 installed in the first inner groove 39, a second rotating rod 41 rotatably inserted into the storage tank 18 and connected to the output shaft of the second motor 40, and a plurality of stirring rods 42 connected to the second rotating rod 41.

[0044] The turnover structure comprises a second inner groove 43 arranged in the lower portion of the storage tank 18, a plurality of second penetrating rods 47 movably penetrating through the groove wall of the second inner groove 43, a rotating groove 48 arranged at the top end of each second penetrating rod 47, a fourth rotating rod rotatably penetrating through the rotating groove 48, a rotating block 49 fixedly sleeved on the fourth rotating rod and in the shape of a disc, a connecting block arranged on the side surface of the rotating block 49, a turnover block 50 arranged at one end of the connecting block, a connecting rod 46 connected to the bottom end of each second penetrating rod 47 and connected to the lifting ring 45 at the bottom end thereof, an electric telescopic rod 44 installed on the lower groove wall of the second inner groove 43 and connected to the lifting ring 45 at the top end of the output shaft thereof, and a third driving structure arranged between each second penetrating rod 47 and the storage tank 18.

[0045] The third driving structure comprises a through groove 51 formed on the second through strip 47 close to the bottom end, a through groove wall of the through groove 51 is provided with a through-out groove on both sides, the fourth rotating rod is rotatably inserted into the two through-out grooves at both ends, the third rotating rod 52 is rotatably connected between the two sides of the through groove wall of the through groove 51, the gear 53 is fixedly sleeved on the middle of the third rotating rod 52, the guide groove 55 is formed in the middle of the through groove wall of the through groove 51, the driving block 54 is movably inserted into the guide groove 55, the gear teeth of the driving block 54 are meshed and connected with the gear 53, the third pulley 62 is fixedly sleeved on both ends of the third rotating rod 52, the second belt 63 is tightly sleeved between every two third pulleys 62, the two fixed strips 56 are connected on the driving block 54, one end of the fixed strip 56 is fixedly inserted through the third driving rod 57, the side plate 58 is arranged on the groove wall of the second inner groove 43 close to the second through strip 47, the vertical groove 59 is formed in the side plate 58, the third driving rod 57 is movably inserted through the vertical groove 59, the second driving groove 60 is formed in the side plate 58 and is communicated with the upper end of the vertical groove 59, the third driving groove 61 is formed in the side plate 58 and is communicated with the bottom end of the vertical groove 59, in the process of adding the plastic into the storage tank 18 for heating and melting, the second motor 40 in the first inner groove 39 drives the second rotating rod 41 and the stirring rod 42 to rotate, the plastic is stirred, the melting work efficiency is accelerated, and the electric telescopic rod 44 in the second inner groove 43 can also drive the lifting ring 45 to move upwards at the same time, one end of the fixed strip 56 and the third driving rod 57 slide upwards in the vertical groove 59 and the second driving groove 60, the fixed strip 56 drives the driving block 54 to move away from the axis of the storage tank 18, the third rotating rod 52 is driven to rotate through the gear 53, and the fourth rotating rod is driven to rotate through the third pulley 62 and the second belt 63, so that the turning block 50 rotates upwards in the process of moving upwards on the second through strip 47, and the plastic raw materials can be better heated, stirred and melted in the storage tank 18, when the material is sprayed through the nozzle 19, the electric telescopic rod 44 drives the lifting ring 45 to move downwards, one end of the fixed strip 56 and the third driving rod 57 slide downwards in the vertical groove 59 and the third driving groove 61, the driving block 54 moves towards the axis of the storage tank 18, and the gear 53, the third rotating rod 52, the third pulley 62 and the second belt 63 are integrally driven to rotate, so that the turning block 50 rotates downwards while the second through strip 47 moves downwards, thereby pushing the melted plastic to be discharged, so that the plastic is discharged more smoothly, and the spraying work quality is ensured.

[0046] The implementation principle of a plastic hollow blow molding device according to an embodiment of the present invention is as follows: First, the first motor 3 on the vertical plate 2 is started to drive the flipping rod 4 to rotate, switching multiple sets of molds 7 to the spraying position, the blow molding position, and the unloading position respectively. At this time, the electric push rod 23 on the fixed block 22 is started to drive the horizontal plate 25 to move downward. And by using the sliding of the second driving rod 28 in the inclined groove 29, the storage tank 18 and the air outlet pipe 21 are driven to move along the direction of the two inclined grooves 29, respectively driving the nozzle 19 and the air outlet pipe 21 to insert into the corresponding mold 7 for spraying and blow molding. At the same time, the blow-molded plastic in another set of molds 7 is cooled, and after cooling, the device is started. The cylinder 9 at the corresponding position moves the drive frame 12 upward. The drive frame 12 drives the first drive rod 13 to slide in the first drive groove 15, pushing open the two corresponding molds 7. The plastic products formed in the molds 7 fall onto the receiving plate 34, and are then fed onto the feeding belt 33 for automatic feeding. At the same time, the first motor 3 drives the flipping rod 4 to rotate, which in turn drives the first rotating rod 32 to rotate through the first pulley 35, the second pulley 36, and the first belt 37, thereby driving the feeding belt 33 to rotate and automatically feed the formed plastic products. Furthermore, when the plastic in the storage tank 18 is being heated and melted, the first internal... In tank 39, the second motor 40 drives the second rotating rod 41 and the stirring rod 42 to rotate, stirring the plastic and accelerating the melting process. It can also activate the electric telescopic rod 44 in the second inner tank 43 to move the lifting ring 45 upwards. Simultaneously, it causes the third driving rod 57 at one end of the fixing bar 56 to slide upwards in the vertical tank 59 and the second driving tank 60. The fixing bar 56 pulls the driving block 54 away from the axis of the storage tank 18, driving the third rotating rod 52 to rotate via the gear 53, and driving the fourth rotating rod to rotate via the third pulley 62 and the second belt 63. Thus, as the second through bar 47 moves upwards, the turning block 50 rotates upwards, thereby... The material is tilted vertically inside the storage tank 18, allowing the plastic raw material to be heated, stirred, and melted more effectively. When the nozzle 19 sprays the material, the electric telescopic rod 44 is activated, which drives the lifting ring 45 to move downward. This causes the third driving rod 57 at one end of the fixed strip 56 to slide downward in the vertical groove 59 and the third driving groove 61. This causes the driving block 54 to move towards the axis closer to the storage tank 18. Through the gear 53, the third rotating rod 52, the third pulley 62, and the second belt 63, the tilting block 50 rotates as the second through strip 47 moves downward, thus pushing the molten plastic to be discharged. This makes the plastic discharge smoother and ensures the quality of the spraying work.

[0047] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A plastic hollow blow molding device, comprising a casing (1) and a mold (7), characterized in that: Multiple sets of molds (7) are set on the chassis (1) by a flipping structure. A feeding structure is set in the middle of the front side of the chassis (1). A fixing plate (8) is fixedly attached to the upper part of the left inner wall of the chassis (1). A spraying structure is set at one corner of the fixing plate (8). An air blowing structure is set at the other corner of the fixing plate (8). The flipping structure includes two vertical plates (2) fastened to the chassis (1) by bolts. A flipping rod (4) rotates through the two vertical plates (2). A through hole (16) is provided on the fixed plate (8) for the flipping rod (4) to move through. An installation sleeve (6) is fixedly fitted in the middle of the flipping rod (4). Multiple U-shaped plates (5) are fastened to the installation sleeve (6) by screws. The multiple U-shaped plates (5) are distributed at equal angles around the circumference of the installation sleeve (6). Two molds (7) are set at the end of the U-shaped plate (5) away from the installation sleeve (6) through the first driving structure. A first motor (3) is installed on one of the vertical plates (2). One end of the output shaft of the first motor (3) is connected to the flipping rod (4). The first driving structure includes multiple cylinders (9) mounted on the mounting sleeve (6). One end of the output shaft of the cylinder (9) is provided with a driving frame (12). Both sides of the U-shaped plate (5) are provided with through slots (11). A first through strip (10) moves through the through slot (11). One end of the first through strip (10) is connected to the mold (7). The other end of the first through strip (10) is provided with a driving plate (14). A first driving slot (15) is provided on the driving plate (14). Two first driving rods (13) are fixedly passed through the driving frame (12). The first driving rods (13) move through the first driving slot (15). The air blowing structure includes a second mounting plate (20) located at another corner of the fixed plate (8), with an air outlet pipe (21) fixedly mounted on the second mounting plate (20), and a second driving structure provided on the fixed plate (8); The second driving structure includes a fixed block (22) connected to a fixed plate (8), an electric push rod (23) is provided on the fixed block (22), the top of the output shaft of the electric push rod (23) is connected to a mounting block (24), a horizontal plate (25) is installed on the mounting block (24), a horizontal groove (27) is provided on the horizontal plate (25), two moving blocks (26) are slidably arranged in the horizontal groove (27), one of the moving blocks (26) is connected to a first mounting plate (17), and the other moving block (26) is connected to a second mounting plate (20). A second driving rod (28) is connected to the moving block (26), and two inclined grooves (29) are provided on the fixed plate (8). The two second driving rods (28) move through the two inclined grooves (29) respectively.

2. The plastic hollow blow molding device according to claim 1, characterized in that: The spraying structure includes a first mounting plate (17) set at one corner of a fixed plate (8), a storage tank (18) is installed on the first mounting plate (17), a nozzle (19) is installed on the storage tank (18), a feeding pipe (38) is provided on the storage tank (18), and a stirring structure and a turning structure are provided inside the storage tank (18).

3. The plastic hollow blow molding device according to claim 1, characterized in that: The feeding structure includes a bracket (30) fastened to the chassis (1) by bolts. A feeding platform (31) is provided at the top of the bracket (30). Both ends of the feeding platform (31) rotate through the first rotating rod (32). A feeding belt (33) is fitted between the two first rotating rods (32). A transmission structure is provided between one of the first rotating rods (32) and the flipping rod (4). A receiving plate (34) is installed on the feeding platform (31) near the chassis (1). The receiving plate (34) is inclined downward toward the feeding platform (31).

4. A plastic hollow blow molding device according to claim 3, characterized in that: The transmission structure includes a first pulley (35) fixedly sleeved on one of the first rotating rods (32), a second pulley (36) fixedly sleeved on the rotating rod (4), a first belt (37) being tightly fitted between the first pulley (35) and the second pulley (36), and the size of the second pulley (36) being five times the size of the first pulley (35).

5. A plastic hollow blow molding device according to claim 2, characterized in that: The stirring structure includes a first inner groove (39) opened above the storage tank (18), a second motor (40) is installed in the first inner groove (39), one end of the output shaft of the second motor (40) is connected to a second rotating rod (41) inserted into the storage tank (18), and multiple stirring rods (42) are connected to the second rotating rod (41).

6. A plastic hollow blow molding device according to claim 2, characterized in that: The material turning structure includes a second inner groove (43) located below the storage tank (18). Multiple second through bars (47) move through the upper wall of the second inner groove (43). A rotating groove (48) is opened near the top of the second through bar (47). A fourth rotating rod rotates through the rotating groove (48). A rotating block (49) is fixedly sleeved in the middle of the fourth rotating rod. The rotating block (49) is a disc-shaped block. A connecting block is provided on the side of the rotating block (49). A material turning block (50) is provided at one end of the connecting block. A connecting rod (46) is connected to the bottom end of each second through bar (47). The bottom end of the connecting rod (46) is connected to the lifting ring (45). An electric telescopic rod (44) is installed on the lower wall of the second inner groove (43). The top end of the output shaft of the electric telescopic rod (44) is connected to the lifting ring (45). A third driving structure is provided between the second through bar (47) and the storage tank (18).

7. A plastic hollow blow molding device according to claim 6, characterized in that: The third driving structure includes a through groove (51) near the bottom of the second through bar (47). Through grooves are provided on both the front and rear sides of the through groove (51). The two ends of the fourth rotating rod are respectively inserted into the two through grooves. A third rotating rod (52) is rotatably connected between the two sides of the through groove (51). A gear (53) is fixedly sleeved on the middle of the third rotating rod (52). A guide groove (55) is provided in the middle of the through groove (51). A driving block (54) moves through the guide groove (55). The driving block (54) is provided with teeth that mesh with the gear (53). Both ends of the third rotating rod (52) and the fourth rotating rod are fixedly sleeved. A third pulley (62) is provided, and a second belt (63) is fitted between each pair of the two third pulleys (62). Two fixing strips (56) are connected to the driving block (54). One end of the fixing strip (56) is fixedly passed through the third driving rod (57). A side plate (58) is provided on the wall of the second inner groove (43) near the second through strip (47). A vertical groove (59) is opened on the side plate (58). The third driving rod (57) moves through the vertical groove (59). A second driving groove (60) is opened on the side plate (58) connecting the upper end of the vertical groove (59). A third driving groove (61) is opened on the side plate (58) connecting the bottom end of the vertical groove (59).

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