Discharging mechanism of injection blow molding machine

Abstract

The utility model relates to the technical field of discharging of injection blow molding machines, in particular to a discharging mechanism of an injection blow molding machine, and aims to solve the problem that bottle bodies cannot automatically fall off from clamping grooves during discharging of an existing injection blow molding machine. The injection blow molding machine comprises an injection blow molding machine body, a square frame is arranged on the injection blow molding machine body, the shear type structure and the bases are arranged on the square frame in a sliding mode, the bases are evenly arranged on the shear type structure, each base is provided with a discharging piece, a driving piece is further installed on the injection blow molding machine body, and the driving piece is connected with the discharging pieces. The blanking device has the advantages that the workpiece blanking effect is guaranteed, and the labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to a discharging mechanism of an injection blow machine. BACKGROUND

[0002] At present, in the production process of plastic products, three-station injection blow machines are widely used in the manufacture of various plastic bottles. The injection blow machine first performs injection molding of a bottle blank, then performs bottle blowing after heating the bottle blank, and performs cooling operation after the bottle blowing to wait for the molding of the bottle body. After that, the bottle body can be taken off the injection blow machine to complete the production of the plastic bottle.

[0003] When the injection blow machine completes the production of the bottle body, a clamping plate with a clamping groove is usually arranged to support and discharge the bottle body: the clamping plate with the clamping groove clamps the bottle mouth and drives the bottle body to separate from the bottle core. However, during the turning process, the bottle body may not automatically fall off the clamping groove, and it is often necessary to manually push and disturb the bottle body with a rod or other objects to make it fall off the clamping groove.

[0004] On the one hand, manual operation is inconvenient, and on the other hand, if negligence occurs, the worker cannot operate in time due to forgetting to drop the bottle or the number of bottles to be pushed and disturbed at a time is too large, which affects the next injection molding operation of the equipment, and therefore improvement is needed. CONTENT OF THE INVENTION

[0005] In order to ensure the discharging effect of the workpiece, the application provides a discharging mechanism of an injection blow machine.

[0006] The discharging mechanism of the injection blow machine provided by the application adopts the following technical scheme:

[0007] A discharging mechanism of an injection blow machine, comprising an injection blow machine body and a discharging station, a turntable is connected to the injection blow machine body, and a plurality of bottle body inner molds are connected to the lateral wall of the turntable; the discharging station comprises a discharging plate and a turning plate, the discharging plate is slidingly connected to the injection blow machine body, and the turning plate is rotatably connected to the discharging plate; a clamping groove for clamping a workpiece is arranged on the turning plate; a discharging mechanism is arranged on the injection blow machine body, the discharging mechanism comprises a square frame installed below the discharging plate, a scissor structure and a plurality of bases slidingly arranged on the square frame, the plurality of bases are evenly arranged on the scissor structure, one discharging piece is installed on each base, a driving piece is further installed on the injection blow machine body, and the driving piece is connected with the discharging piece.

[0008] By adopting the technical scheme, before production, an operator installs a corresponding number of bases and blanking pieces on the scissor structure according to the number of bottle body inner molds, and adjusts the distance between the blanking pieces through the scissor structure to adapt to the clamping grooves on the turning plate. When four workpieces of the same batch are completed by injection blow molding, the rotating table drives the workpieces to move to the ejection station and clamp them into the clamping grooves; at this time, the ejection plate drives the turning plate to move away from the injection blow molding machine body, and the workpieces are translated out of the bottle body inner molds; then the turning plate is turned from the vertical state to the horizontal state. When the ejection plate drives the turning plate to move close to the injection blow molding machine body, the ejection plate is linked and matched with the blanking pieces through the driving pieces, the blanking pieces drive the workpieces to be ejected from the clamping grooves, and the ejection effect is ensured. The demand for manual work is reduced, the ejection efficiency is improved, and the cost is reduced.

[0009] Optionally, the scissor structure comprises a plurality of sliding nodes and a plurality of movable active nodes, the sliding nodes in the middle part of the scissor structure are fixedly connected with the square frame, end sleeves are connected to the sliding nodes at both ends of the scissor structure, the end sleeves are also slidably connected with the square frame, and fixing bolts are arranged on the end sleeves and used for fixing the end sleeves on the square frame; the active nodes are provided with sliding sleeves, and sliding rods are inserted into the sliding sleeves and connected with the bases.

[0010] Optionally, a first hinge shaft is arranged on the square frame, the length direction of the first hinge shaft is perpendicular to the length direction of the sliding rods, and a hole is formed through the side wall of the base. The base is slidably connected with the first hinge shaft through the hole.

[0011] By adopting the technical scheme, an operator adjusts the end sleeves according to the spacing of the bottle body inner molds, drives the end sleeves at both ends to move close to or away from each other, so that the scissor structure is contracted inward or expanded to both sides, thereby driving the distance between the four active nodes to be reduced or increased, and at the same time, the active nodes drive the sliding sleeves to move close to or away from the bases. However, since the bases are arranged on the first hinge shaft and can only move along the length direction of the first hinge shaft, the sliding rods are telescopic in the sliding sleeves, and the distance between the bases is adjusted. After the adjustment is completed, the operator fixes the end sleeves at both ends on the square frame through the fixing bolts. The position of the base is adjusted through the scissor structure, and then the structure of the blanking piece is adjusted, so that it can be adapted to products of various models, and the practicability of the blanking piece is improved.

[0012] Optionally, the blanking piece comprises a sleeve, an extension rod and a rubber block, the base is hollow, a second hinge shaft is installed on the inner wall of the base, a hinge seat hinged to the second hinge shaft is installed on the outer circumferential wall of the sleeve, a fixing plate is installed on the outer circumferential wall of the sleeve, the side wall of the fixing plate is attached to the inner wall of the base, and holes are formed in the side wall of the fixing plate and the inner wall of the base, and a fixing bolt is arranged on the fixing plate to adjust the angle of the sleeve; the extension rod is slidingly inserted into the sleeve, and the end of the extension rod away from the base is obliquely arranged towards the flap; and the rubber block is installed on the end of the extension rod close to the flap.

[0013] By adopting the above technical scheme, after the operator determines the angles of the sleeve and the extension rod, the fixing plate is fixed on the base by the fixing bolt to fix the sleeve; when the discharge plate is retracted, the discharge plate pushes the extension rod to move obliquely upwards along the sleeve by the driving member, so that the rubber block moves obliquely from below the flap to the groove, the workpiece clamped in the groove is pushed out, and the blanking is completed.

[0014] Optionally, the rubber block is cylindrical, the diameter of the rubber block is smaller than the diameter of the clamping groove on the flap, and an inclined surface is arranged on the outer circumferential wall of the side of the rubber block close to the flap.

[0015] By adopting the above technical scheme, the collision between the rubber block and the flap is avoided.

[0016] Optionally, the driving member comprises a first gear rack, a second gear rack and a transmission gear set engaged with the first gear rack and the second gear rack, the first gear rack and the second gear rack are slidingly connected with the square frame, the transmission gear set is installed on the square frame, and the first gear rack is connected with the discharge plate.

[0017] Optionally, a slope block is connected to the second gear rack, the slope block is slidingly connected with the square frame, and the end of the extension rod away from the rubber block is always in contact with the slope surface of the slope block.

[0018] By adopting the above technical scheme, when the flap is turned from the vertical state to the horizontal state, the discharge plate is retracted to drive the first gear rack to move towards the injection blowing machine body, the first gear rack drives the second gear rack to move away from the injection blowing machine body through the transmission gear set, and the second gear rack drives the slope block to move to push the extension rod to move obliquely upwards along the sleeve.

[0019] Optionally, a slope plate is installed on the base, a hinge shaft is installed on the end of the base away from the injection blowing machine body, the top end of the slope plate is rotationally connected with the base through the hinge shaft, a waist-shaped hole is formed in the side wall of the base, and a fixing bolt is arranged in the waist-shaped hole, the fixing bolt can abut against the side wall of the slope plate to fix the angle of the slope plate.

[0020] By adopting the technical scheme, the length and angle of the slope plate can be adjusted according to the size of the workpiece, and an operator can run the machine, and the setting of the slope plate can be adjusted by observing the impact of the slope plate with different lengths and angles on the workpiece. When the angle needs to be adjusted, the fixing bolt is loosened, the slope plate is controlled to rotate around the third hinge shaft, the screw rod of the fixing bolt moves in the waist-shaped hole, and the fixing bolt is tightened after a suitable angle is selected, and the fixing bolt abuts against the side wall of the base to fix the slope plate.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] 1. Before production, an operator installs a corresponding number of bases and blanking pieces on the scissor structure according to the number of bottle body inner molds, and adjusts the distance between the blanking pieces through the scissor structure to adapt to the clamping groove on the turnover plate. When four workpieces in the same batch are injection molded, the rotating table drives the workpieces to move to the discharging station and clamp them into the clamping groove. At this time, the discharging plate drives the turnover plate away from the injection molding machine body, and the workpieces are translated out of the bottle body inner mold. Then, the turnover plate is turned from vertical to horizontal. When the discharging plate drives the turnover plate to move towards the injection molding machine body, the discharging plate is linked and matched with the blanking piece through the driving piece, the blanking piece drives the workpiece out of the clamping groove, and the effect of discharging the workpiece is guaranteed. The demand for manual work is reduced, the discharging efficiency is improved, and the cost is reduced;

[0023] 2. An operator adjusts the end sleeves according to the distance between the bottle body inner molds, drives the end sleeves at both ends to move close to or away from each other, makes the scissor structure contract inward or expand to both sides, thereby driving the distance between the four movable nodes to decrease or increase, and at the same time, the movable nodes drive the sliding sleeves to move close to or away from the base. However, since the base is arranged on the first hinge shaft and can only move along the length direction of the first hinge shaft, the sliding rod is telescopic in the sliding sleeve, and the distance between the bases is adjusted. After the adjustment is completed, the operator fixes the end sleeves at both ends on the square frame through the fixing bolt. The position of the base is adjusted through the scissor structure, and the structure of the discharging piece is adjusted, so that it can adapt to various models of products, and the practicability of the discharging piece is improved;

[0024] 3. The length and angle of the slope plate can be adjusted according to the size of the workpiece, an operator can run the machine, and the setting of the slope plate can be adjusted by observing the impact of the slope plate with different lengths and angles on the workpiece. When the angle needs to be adjusted, the fixing bolt is loosened, the slope plate is controlled to rotate around the third hinge shaft, the screw rod of the fixing bolt moves in the waist-shaped hole, and the fixing bolt is tightened after a suitable angle is selected, and the fixing bolt abuts against the side wall of the base to fix the slope plate. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of a discharging mechanism of an injection molding machine according to an embodiment of the present application.

[0026] Figure 2 is a structural schematic diagram of a blanking mechanism in an embodiment of the application.

[0027] Figure 3 is a structural schematic diagram of a blanking piece and a driving piece in an embodiment of the application.

[0028] Figure 4 is a structural schematic diagram of a base and a blanking piece in an embodiment of the application.

[0029] Reference signs: 1, injection blowing machine body; 2, rotary table; 21, bottle body inner mold; 3, discharging station; 31, discharging plate; 32, turning plate; 33, clamping groove; 34, air cylinder; 35, motor; 4, blanking mechanism; 41, square frame; 411, first hinged shaft; 42, scissor structure; 421, sliding node; 422, movable node; 423, end sleeve; 424, sliding sleeve; 425, sliding rod; 43, base; 431, waist-shaped hole; 5, blanking piece; 51, sleeve; 52, telescopic rod; 53, rubber block; 54, second hinged shaft; 55, fixed plate; 6, driving piece; 61, first rack; 62, second rack; 63, transmission gear set; 64, slope block; 65, right-angle rod; 7, slope plate; 71, third hinged shaft. DETAILED DESCRIPTION

[0030] The following will be described in detail in combination with the accompanying Figures 1-4 The application will be described in further detail.

[0031] An embodiment of the application discloses a blanking mechanism of an injection blowing machine. Referring to Figure 1 and Figure 2 A blanking mechanism of an injection blowing machine comprises an injection blowing machine body 1, the injection blowing machine body 1 is connected with a rotary table 2, the lateral wall of the rotary table 2 is transversely connected with a plurality of bottle body inner molds 21, in this embodiment, four bottle body inner molds 21 are arranged on each lateral wall of the rotary table 2. One side of the injection blowing machine body 1 is provided with a discharging station 3, the discharging station 3 comprises a discharging plate 31 and a turning plate 32, the discharging plate 31 is slidingly connected on the injection blowing machine body 1, and an air cylinder 34 is arranged between the discharging plate 31 and the injection blowing machine body 1 to drive the discharging plate 31 to move away from or close to the injection blowing machine body 1. The turning plate 32 is rotationally connected on the discharging plate 31, the turning plate 32 is provided with a clamping groove 33 for clamping a workpiece, and the rotation of the turning plate 32 is controlled by a motor 35. The injection blowing machine body 1 is provided with a blanking mechanism 4, the blanking mechanism 4 comprises a square frame 41 installed below the discharging plate 31, a scissor structure 42 is slidingly arranged on the square frame 41, a plurality of bases 43 are uniformly arranged on the scissor structure 42, and in this embodiment, the number of the bases 43 is the same as that of the bottle body inner molds 21. One blanking piece 5 is installed on each base 43, and a driving piece 6 is further installed on the injection blowing machine body 1, one end of the driving piece 6 is connected with the blanking piece 5, and the other end is connected with the discharging plate 31.

[0032] Before production, the operator installs the corresponding number of bases 43 and blanking pieces 5 on the scissor structure 42 according to the number of bottle body inner molds 21, and adjusts the distance between the blanking pieces 5 through the scissor structure 42 to adapt to the clamping groove 33 on the turning plate 32. When the four workpieces of the same batch are injection blowed, the rotating table 2 drives it to move to the discharging station 3, and clamps it into the clamping groove 33; at this time, the discharging plate 31 drives the turning plate 32 to move away from the injection blow machine body 1, and translates the workpiece out of the bottle body inner mold 21; then the turning plate 32 is turned from vertical to horizontal. When the discharging plate 31 drives the turning plate 32 to move close to the injection blow machine body 1, the discharging plate 31 is linked and matched with the blanking piece 5 through the driving piece 6, which drives the blanking piece 5 to eject the workpiece from the clamping groove 33, ensuring the effect of discharging the workpiece. Reducing the demand for manual labor, improving the discharging efficiency while reducing the cost.

[0033] With reference to Figure 2 The scissor structure 42 includes a plurality of sliding nodes 421 slidingly connected with the square frame 41 and a plurality of movable nodes 422 freely moving, in this embodiment, three sliding nodes 421 are provided, and four movable nodes 422 are provided on both sides of the straight line where the three sliding nodes 421 are located. The sliding node 421 located in the middle of the scissor structure 42 is fixedly connected with the square frame 41 through a bolt, and the sliding nodes 421 located at both ends of the scissor structure 42 are connected with end sleeves 423, and the end sleeves 423 are also slidingly connected with the square frame 41. The end sleeves 423 are provided with fixing bolts for fixing the end sleeves 423 on the square frame 41.

[0034] The four movable nodes 422 located on the same side are respectively provided with sliding sleeves 424, the sliding sleeves 424 are located away from the injection blow machine body 1, and the length direction of the sliding sleeves 424 is perpendicular to the straight line where the three sliding nodes 421 are located. A sliding rod 425 is inserted into the sliding sleeve 424, and one end of the sliding rod 425 away from the sliding sleeve 424 is connected with the base 43 through a bolt. A first hinged shaft 411 is installed on the square frame 41 through a bolt, and the length direction of the first hinged shaft 411 is perpendicular to the length direction of the sliding rod 425. A hole is formed through the side wall of the base 43, and the base 43 is slidingly connected with the first hinged shaft 411 through the hole.

[0035] The operator adjusts the end sleeve 423 according to the spacing of the bottle body inner mold 21, drives the end sleeves 423 at both ends to move close to or away from each other, so that the scissors structure 42 is retracted inward or expanded to both sides, thereby reducing or increasing the distance between the four movable nodes 422, and at the same time, the movable nodes 422 drive the sliding sleeve 424 to move close to or away from the base 43, but since the base 43 is arranged on the first hinge shaft 411 and can only move along the length direction of the first hinge shaft 411, the sliding rod 425 is telescopic in the sliding sleeve 424, thereby adjusting the distance between the bases 43. After the adjustment is completed, the operator fixes the end sleeves 423 at both ends on the square frame 41 through the fixing bolts.

[0036] With reference to Figure 3 and Figure 4 , the blanking piece 5 includes a sleeve 51 and a telescopic rod 52 slidingly arranged in the sleeve 51, and the base 43 is hollow. The second hinge shaft 54 is arranged on the inner wall of the base 43, and the hinge seat is arranged on the outer side wall of the sleeve 51 and hinged with the second hinge shaft 54. The fixing plate 55 is arranged on the outer side wall of the sleeve 51, and the holes are arranged on the inner wall of the base 43 and the fixing plate 55. The fixing bolts are arranged on the fixing plate 55 and matched with different holes to adjust the angle of the sleeve 51. The end of the telescopic rod 52 away from the base 43 is inclined towards the flap 32, and the end of the telescopic rod 52 close to the flap 32 is arranged with the rubber block 53 through gluing. The rubber block 53 is cylindrical, and the diameter of the rubber block 53 is smaller than the diameter of the clamping groove 33 on the flap 32. An inclined surface is formed on the outer side wall of the rubber block 53 close to the flap 32 by cutting an angle, so as to avoid the collision between the rubber block 53 and the flap 32.

[0037] With reference to Figure 3 , the driving piece 6 includes the first rack 61, the second rack 62 and the transmission gear set 63 engaged with the first rack 61 and the second rack 62. The first rack 61 and the second rack 62 are slidingly connected with the square frame 41 through the slide rail. In this embodiment, the transmission gear set 63 is taken as an example of a single gear, and the actual situation is judged and adjusted in production. The end of the first rack 61 away from the base 43 is connected with the discharge plate 31 through the right-angle rod 65, and the end of the second rack 62 close to the base 43 is connected with the slope block 64. The slope block 64 is slidingly connected with the square frame 41 through the slide rail, and the end of the telescopic rod 52 away from the rubber block 53 is always in contact with the slope surface of the slope block 64.

[0038] When the flap 32 is turned from the vertical state to the horizontal state, the discharge plate 31 is retracted to drive the first rack 61 to move close to the blow molding machine body 1. The first rack 61 drives the second rack 62 to move away from the blow molding machine body 1 through the transmission gear set 63. When the second rack 62 drives the slope block 64 to move, the telescopic rod 52 is pushed to move upward along the sleeve 51, so that the rubber block 53 moves along the inclined surface from below the flap 32 to the groove, and the workpiece clamped in the groove is pushed out, and the blanking is completed.

[0039] Referring to Figure 3 and Figure 4 The slope plate 7 is mounted on the base 43, the third hinge shaft 71 is mounted on the end of the base 43 away from the injection blowing machine body 1, and the top end of the slope plate 7 is rotationally connected to the base 43 through the third hinge shaft 71; the waist-shaped hole 431 is formed in the side wall of the base 43, and the fixing bolt is arranged in the waist-shaped hole 431 and is threadedly connected with the slope plate 7.

[0040] The length and angle of the slope plate 7 can be adjusted according to the size of the workpiece. The operator can adjust the setting of the slope plate 7 by observing the impact of the slope plate 7 with different lengths and angles on the workpiece during the trial operation of the machine. When the angle needs to be adjusted, the fixing bolt is loosened, the slope plate 7 is rotated about the third hinge shaft 71, and the shank of the fixing bolt moves in the waist-shaped hole 431; after the appropriate angle is selected, the fixing bolt is tightened to fix the slope plate 7 against the side wall of the base 43.

[0041] The implementation principle of the discharging mechanism of the injection blowing machine according to the embodiment of the application is as follows: before production, the operator installs the base 43 on the scissor structure 42 according to the number of the bottle body inner mold 21, and adjusts the distance between the bases 43 through the scissor structure 42 to adapt to the clamping groove 33 on the flap 32. When four workpieces in the same batch are injection blown, the rotating table 2 drives the workpieces to move to the discharging station 3 and clamps them into the clamping groove 33; at this time, the discharging plate 31 drives the flap 32 to move away from the injection blowing machine body 1, and the workpieces are translated out of the bottle body inner mold 21; then the flap 32 is flipped from the vertical state to the horizontal state. When the discharging plate 31 drives the flap 32 to move close to the injection blowing machine body 1, the discharging plate 31 moves to drive the first rack 61 to move close to the injection blowing machine body 1, the first rack 61 drives the second rack 62 to move away from the injection blowing machine body 1 through the transmission gear set 63, and the second rack 62 drives the slope block 64 to move to push the telescopic rod 52 to move obliquely upward along the sleeve 51, so that the rubber block 53 moves obliquely from below the flap 32 to the recess, and the workpiece clamped in the recess is pushed out, the discharging is completed, and the effect of discharging the workpiece is ensured. The demand for manual work is reduced, the discharging efficiency is improved, and the cost is reduced.

[0042] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, so that: any equivalent changes made on the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A blanking mechanism of an injection-blowing machine, comprising an injection-blowing machine body (1) and a discharge station (3), a rotary table (2) is connected to the injection-blowing machine body (1), and a plurality of bottle body inner molds (21) are connected to the lateral wall of the rotary table (2); the discharge station (3) comprises a discharge plate (31) and a turnover plate (32), the discharge plate (31) is slidingly connected to the injection-blowing machine body (1), and the turnover plate (32) is rotatably connected to the discharge plate (31); a clamping groove (33) for clamping a workpiece is arranged on the turnover plate (32), and the clamping groove (33) comprises a clamping groove body (331) and a clamping groove cover (332), the clamping groove cover (332) is connected to the clamping groove body (331), and the clamping groove cover (332) is provided with a clamping groove clamping mechanism (333) for clamping the workpiece. The blow molding machine body (1) is provided with a discharging mechanism (4), the discharging mechanism (4) includes a square frame (41) installed below the discharge plate (31), and a shear structure (42) and a plurality of bases (43) are slidably arranged on the square frame (41), a plurality of the bases (43) are uniformly arranged on the shear structure (42), one discharging piece (5) is installed on each of the bases (43), and a driving piece (6) is further installed on the blow molding machine body (1), and the driving piece (6) is connected with the discharging piece (5).

2. The machine according to claim 1, characterized in that: The shear structure (42) includes a plurality of sliding nodes (421) slidably connected with the square frame (41) and a plurality of free-moving active nodes (422), the sliding nodes (421) located in the middle of the shear structure (42) are fixedly connected with the square frame (41), the sliding nodes (421) located at both ends of the shear structure (42) are connected with end sleeves (423), the end sleeves (423) are also slidably connected with the square frame (41), the end sleeves (423) are provided with fixing bolts for fixing the end sleeves (423) on the square frame (41), and the active nodes (422) are provided with sliding sleeves (424).

3. The machine according to claim 2, characterized in that: The square frame (41) is provided with a first hinge shaft (411), the length direction of the first hinge shaft (411) is perpendicular to the length direction of the sliding rod (425), and the side wall of the base (43) is provided with a hole.

4. The machine according to claim 3, characterized in that: The discharging piece (5) includes a sleeve (51), a telescopic rod (52) and a rubber block (53), the base (43) is hollow, a second hinge shaft (54) is installed on the inner wall of the base (43), a hinge seat hinged with the second hinge shaft (54) is installed on the outer side wall of the sleeve (51), a fixing plate (55) is installed on the outer side wall of the sleeve (51), the side wall of the fixing plate (55) is attached to the inner wall of the base (43), and holes are formed in the side wall of the fixing plate (55) and the inner wall of the base (43), and a fixing bolt is arranged on the fixing plate (55) to adjust the angle of the sleeve (51); the telescopic rod (52) is slidably inserted into the sleeve (51), and the end of the telescopic rod (52) away from the base (43) is inclined towards the flap (32), and the rubber block (53) is installed on the end of the telescopic rod (52) close to the flap (32).

5. A machine according to claim 4, characterized in that: The rubber block (53) is cylindrical, the diameter of the rubber block (53) is smaller than the diameter of the clamping groove (33) on the flap (32), and the outer side wall of the side of the rubber block (53) close to the flap (32) is provided with an inclined surface.

6. A machine according to claim 5, characterized in that: The driving piece (6) comprises a first rack (61), a second rack (62) and a transmission gear set (63) engaged with the first rack (61) and the second rack (62), the first rack (61) and the second rack (62) are in sliding connection with the square frame (41), the transmission gear set (63) is installed on the square frame (41), and the first rack (61) is connected with the discharging plate (31).

7. A machine according to claim 6, characterized in that: A slope block (64) is connected to the second rack (62), the slope block (64) is in sliding connection with the square frame (41), and the end, away from the rubber block (53), of the telescopic rod (52) is always in contact with the slope surface of the slope block (64).

8. The machine according to claim 1, characterized in that: A slope plate (7) is installed on the base (43), a third hinged shaft (71) is installed at the end, away from the injection blowing machine body (1), of the base (43), and the top end of the slope plate (7) is rotationally connected with the base (43) through the third hinged shaft (71); a waist-shaped hole (431) is formed in the side wall of the base (43), a fixing bolt is arranged in the waist-shaped hole (431), and the fixing bolt is in threaded connection with the slope plate (7).

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