A cutting knife adjustment device for a blow molding machine

Abstract

The utility model discloses a cutter adjusting device for blow molding machine, including cutting mechanism, angle adjusting mechanism and main control system, and the adjusting seat of angle adjusting mechanism is arranged along X axis with several and all is provided with cutting mechanism, and several adjusting seats are connected through mutual linkage, are used for the synchronous regulation cutting mechanism to the cutting angle of the overflow of bevel neck bottle, cutting mechanism has cutter, cutting material transmission subassembly and cutting material driver, and the output of cutting material transmission subassembly is connected with cutter, and the output of cutting material driver is transmission connection with cutting material transmission subassembly input, and cutting material driver receives the relevant instruction of main control system after driving cutting material transmission subassembly and transmission cutter. Therefore, realize the synchronous control of all cutter cutting angle on multiple cutting mechanism, make all cutter cutting processing to the overflow of batch bevel neck bottle according to the cutting angle of adjusting seat adjustment, improve production efficiency, simplify the assembly structure of overall equipment, reduce the failure rate and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of blow molding equipment technology, and in particular to a cutter adjustment device for a blow molding machine. Background Technology

[0002] A blow molding machine is a key industrial piece of equipment for producing hollow plastic products. It blows molten plastic preforms into shapes and is widely used in the daily chemical, food and beverage, packaging, automotive, and medical industries. The blow molding process typically includes preform pretreatment, stretch blow molding, cooling and setting, and demolding. After the preform is extruded from the die, it needs to pass through a cutting device to trim excess material from the bottle neck.

[0003] When cutting excess material from the bottle neck, existing blow molding machines typically require adjustments to the cutting angle of the cutter based on the shape of the bottle neck (e.g., angled bottle) and other factors. For example, Chinese invention patent application CN108724678A, entitled "Blow Molding Machine," includes a frame, a blow molding head, an electric slide, a mold, a bottle neck trimming device, a three-axis adjustment frame for the trimming cutter, and a bottle bottom trimming device. The three-axis adjustment frame for the trimming cutter includes a base plate, an X-axis adjustment assembly, a Y-axis adjustment assembly, and a Z-axis adjustment assembly. The lower end of the base plate is connected to the telescopic cylinder of the bottle neck trimming device via a vertical rod. Each of the X-axis, Y-axis, and Z-axis adjustment assemblies has a connecting frame for connection to the frame. The X-axis and Y-axis adjustment assemblies have the same structure, differing only in their orientation; the X-axis adjustment assembly is positioned such that the Y-axis adjustment assembly rotates 90 degrees from the upper surface of the base plate. The X-axis and Y-axis adjustment assemblies are spaced apart. Therefore, the three-axis adjustment frame allows for fine-tuning of the bottle neck trimming device, changing the angle and direction of the cutter head to achieve a higher degree of flatness at the bottle neck, and also allows for cutting bottle necks at required angles as needed.

[0004] However, the existing technology still has the following drawbacks: 1. Existing blow molding machines require independent arrangement of XYZ axis adjustment components to adjust the cutting angle of the cutter. The independent arrangement of each axis component occupies a large space area, increases the complexity of the adjustment mechanism, and leads to a high failure rate and high maintenance cost when there are many structural components. Moreover, the XYZ axis adjustment component can only adjust one cutter at a time, and cannot adjust multiple cutters simultaneously, resulting in low work efficiency; 2. During the process of cutting the overflow at the bottle mouth, it is necessary to frequently adjust the axial displacement of the cutter to meet the cutting position corresponding to the bottle mouth. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a cutter adjustment device for a blow molding machine.

[0006] The purpose of this utility model is achieved by the following technical solution: a cutting knife adjustment device for a blow molding machine, including a cutting mechanism, an angle adjustment mechanism and a main control system. The angle adjustment mechanism has an adjustment seat, and several adjustment seats are arranged along the X-axis. Each adjustment seat is equipped with the cutting mechanism. The several adjustment seats are interconnected through a linkage mechanism to synchronously adjust the cutting angle of the cutting mechanism for the overflow of the oblique bottle.

[0007] The cutting mechanism includes a cutter, a cutting transmission assembly, and a cutting driver. The output end of the cutting transmission assembly is connected to the cutter, and the cutting driver is electrically connected to the main control system. The output end of the cutting driver is connected to the input end of the cutting transmission assembly. After receiving relevant instructions from the main control system, the cutting driver drives the cutting transmission assembly and drives the cutter so that all cutters cut the overflow of the batch of angled bottles according to the cutting angle adjusted by the adjusting seat.

[0008] Furthermore, the cutting transmission assembly is mounted on the back of the adjusting seat via a mounting base. The cutting transmission assembly has a cutting gear and a cutting rack. The output shaft of the cutting gear passes vertically through the front of the adjusting seat and is connected to the cutter. The cutting rack meshes with the cutting gear in a vertical position. The cutting driver is mounted on the mounting base and its output end is connected to the cutting rack drive.

[0009] Furthermore, the output shaft of the cutting gear passes through the front of the adjusting seat and is connected to a blade bar via a rocker arm. One end of the blade bar is connected to the output shaft of the cutting gear via the rocker arm, and the other end of the blade bar is connected to the cutter.

[0010] Furthermore, the linkage mechanism includes a transmission screw, a stepper motor or an operating handwheel for driving the transmission screw, a synchronous gear on the adjusting seat, the transmission screw being horizontally arranged along the arrangement direction of the plurality of adjusting seats and meshing with the synchronous gear on each adjusting seat, and the stepper motor or operating handwheel being located at the end of the transmission screw for driving the transmission screw to control the synchronous rotation of the plurality of adjusting seats.

[0011] Furthermore, the cutter adjustment device for the blow molding machine also includes an X-axis sliding mechanism, which has an X-axis base plate and an X-axis slide block. An X-axis groove is provided on the X-axis base plate, and the X-axis slide block is mounted on the X-axis base plate and slides along the X-axis groove. The adjustment seat is mounted on the X-axis slide block and can rotate horizontally relative to the X-axis slide block.

[0012] Furthermore, the adjusting seat and the X-axis slide are rotatably connected via a central rotating shaft. The adjusting seat has an arc-shaped sliding hole that penetrates the upper and lower surfaces. The X-axis slide is provided with several X-axis positioning pins whose upper ends are embedded in the arc-shaped sliding hole. The rotation angle of the adjusting seat on the X-axis slide is limited by the cooperation between the positioning pin and the arc-shaped sliding hole.

[0013] Furthermore, the rotation angle is the angle between the side of the adjustment seat in its rotation direction and the horizontal line after the seat rotates, and the range of the rotation angle is 0-45°.

[0014] Furthermore, several of the X-axis slides are connected by X-axis push rods, one end of which extends to the end of the X-axis base plate and is connected to a manual operating wheel or an X-axis driver.

[0015] Furthermore, the cutter adjustment device for the blow molding machine also includes a lifting mechanism, which has a lifting base and a Z-axis drive. The Z-axis drive is mounted on the lifting base and its output end is connected to the X-axis base plate for driving the X-axis base plate to lift.

[0016] Furthermore, the cutter adjustment device for the blow molding machine also includes a Y-axis base plate, on which a Y-axis positioning groove and a Y-axis positioning column are provided. The lifting base has several Y-axis positioning holes penetrating the upper and lower surfaces. The upper end of the Y-axis positioning column is embedded in the Y-axis positioning hole for positioning and installing the lifting base.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: In this embodiment, several angle adjustment mechanisms are arranged along the X-axis, and a cutting mechanism is installed on the adjustment seat of each angle adjustment mechanism. The several adjustment seats are synchronously linked and controlled to deflect, thereby realizing the synchronous control of the cutting angle of all cutters on multiple cutting mechanisms. The cutting angle adjustment is more convenient, which solves the complexity of traditional blow molding machines that independently adjust the cutting angle of a single cutter by arranging XYZ axis adjustment components. It ensures that all cutters rotate synchronously at the same angle, and efficiently and accurately cuts the overflow of batch of beveled bottles according to the cutting angle adjusted by the adjustment seat, thereby improving production efficiency. Moreover, the linear spatial arrangement along the X-axis saves installation space, simplifies the overall equipment assembly structure, reduces the failure rate, and reduces maintenance costs. Attached Figure Description

[0018] Figure 1 This is a top view of the cutter adjustment device for a blow molding machine in a preferred embodiment of the present invention;

[0019] Figure 2This is a front perspective view of a cutter adjustment device for a blow molding machine in a preferred embodiment of the present invention.

[0020] Figure 3 This is a rear perspective view of the cutter adjustment device for a blow molding machine in a preferred embodiment of the present invention;

[0021] Figure 4 This is a partial cross-sectional view of the cutting mechanism of the cutter adjustment device for a blow molding machine in a preferred embodiment of the present invention;

[0022] Figure 5 This is a block diagram illustrating the control module principle of the cutter adjustment device for a blow molding machine in a preferred embodiment of the present invention.

[0023] In the picture:

[0024] 10. Cutting mechanism; 101. Cutter; 102. Cutting transmission assembly; 1021. Cutting gear; 1022. Cutting rack; 103. Cutting driver; 104. Mounting base; 105. Swing arm; 106. Cutter bar;

[0025] 20. Angle adjustment mechanism; 201. Adjustment seat; 2011. Arc-shaped sliding hole; 2012. Synchronous gear; 202. Linkage mechanism; 2021. Transmission screw; 2022. Stepper motor;

[0026] 30. X-axis sliding mechanism; 301. X-axis base plate; 3011. X-axis slide groove; 3012. Guide column; 302. X-axis slide block; 3021. X-axis positioning column; 303. X-axis push rod; 304. X-axis actuator;

[0027] 40. Lifting mechanism; 401. Lifting base; 4011. Y-axis positioning hole; 402. Z-axis drive;

[0028] 50. Y-axis base plate; 501. Y-axis positioning groove; 502. Y-axis positioning column; 503. Y-axis push rod; 504. Y-axis actuator;

[0029] 60. Main control system. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] like Figure 1-5As shown, a cutter adjustment device for a blow molding machine is a key component of the machine. It cuts excess material from plastic products and can be widely used in daily chemicals, food and beverage, packaging, automotive, and medical fields. This cutter adjustment device includes a cutting mechanism 10, an angle adjustment mechanism 20, and a main control system 60. The angle adjustment mechanism 20 has an adjustment seat 201, which is approximately L-shaped. The L-shaped adjustment seat 201 has a vertical mounting part and a horizontal mounting part. Several adjustment seats 201 are arranged along the X-axis, and these seats are interconnected, allowing for synchronous adjustment of their rotation angles.

[0032] The cutting mechanism 10 includes a cutter 101, a cutting transmission assembly 102, and a cutting driver 103. A mounting base 104 is fixedly connected to the vertical mounting portion on the back of the adjusting seat 201. The cutting transmission assembly includes a cutting gear 1021 and a cutting rack 1022. The cutting gear 1021, the cutting rack 1022, and the cutting driver 103 are all mounted on the mounting base 104. The cutting rack 1022 is mounted vertically and meshes with the horizontal cutting gear 1021. The cutting driver 103 can be a cylinder. The output end of the cutting driver 103 is connected to the top of the cutting rack via a connecting block. Therefore, the cutting driver 103 can drive the cutting rack 1022 to move up and down vertically and mesh with the cutting gear 1021. The output shaft of the cutting gear 1021 vertically passes through the front of the adjusting seat 201 and is connected to the cutter 101. The vertical cutting rack layout of this application embodiment reduces the lateral space occupied, optimizes the meshing transmission ratio, and achieves high-precision angle control.

[0033] The cutting driver 103 is electrically connected to the main control system 60. The cutting driver 103 can be a cylinder, and its angle is digitally fine-tuned through programming with the main control system 60. When the main control system 60 sends a pulse signal to the cutting driver 103, it drives the cutting rack 1022 to move up and down, synchronously driving the cutting gear 1021. The rotation of the cutting gear 1021, in turn, synchronously drives the cutter 101 to perform a cutting action. The self-locking characteristic of the cutting transmission component 102 prevents angle deviation caused by cutting vibration, improving cutting accuracy. The specific direction of action is as follows: Figure 4 As shown.

[0034] Each adjustment seat 201 in this embodiment is equipped with a corresponding cutting mechanism 10. The modular design of the cutting mechanism 10 improves maintenance convenience, and disassembling a single cutting mechanism 10 does not affect other components. Several adjustment seats 201 are connected in series through a linkage mechanism 202.

[0035] Specifically, a synchronous gear 2012 is installed on the adjusting seat 201, and the linkage mechanism 202 includes a transmission screw 2021 and a stepper motor 2022. The transmission screw 2021 is horizontally arranged and meshes with the synchronous gear 2012 on each adjusting seat 201. The end of the transmission screw 2021 is connected to the stepper motor 2022. The stepper motor 2022 drives the transmission screw 2021 to rotate. The transmission screw 2021 meshes with the synchronous gear 2012, thereby driving all adjusting seats 201 to rotate synchronously around the central axis.

[0036] In addition, the linkage mechanism 202 can also be equipped with an operating handwheel, which is located at the end of the transmission screw 2021, so that the worker can manually control the rotation of the transmission screw, thereby driving each adjusting seat to deflect synchronously.

[0037] Of course, provided that all adjusting seats 201 can be deflected synchronously, the linkage mechanism 202 can also use other linkage methods, such as using a synchronizing rod to connect each adjusting seat 201 in a hinged manner, and then setting a telescopic cylinder at one end of the synchronizing rod to drive the synchronizing rod and drive each adjusting seat 201 to deflect synchronously.

[0038] Thus, in this embodiment of the application, several angle adjustment mechanisms 20 are arranged along the X-axis, and a cutting mechanism 10 is installed on the adjustment seat 201 of each angle adjustment mechanism 20. The several adjustment seats 201 are synchronously linked and controlled to deflect, thereby realizing the synchronous control of the cutting angle of all cutters 101 on multiple cutting mechanisms 10. The cutting angle adjustment is more convenient, which solves the complexity of traditional blow molding machines that independently adjust the cutting angle of a single cutter 101 by independently arranging XYZ axis adjustment components. It ensures that all cutters 101 rotate synchronously at the same angle, and efficiently and accurately cuts the overflow of batch of beveled bottles according to the cutting angle adjusted by the adjustment seat 201, thereby improving production efficiency. Moreover, the linear spatial arrangement along the X-axis saves installation space, simplifies the overall equipment assembly structure, reduces the failure rate, and reduces maintenance costs.

[0039] The vertical mounting part of the adjusting seat 201 is used to mount the cutting transmission assembly 102 on the back and the cutter 101 on the front. The output shaft of the cutting gear 1021 passes through the back of the vertical mounting part to the front and is connected to a block-shaped swing arm 105. The other end of the swing arm 105 is connected to a knife bar 106, and the end of the knife bar 106 is connected to the cutter 101.

[0040] like Figure 1 As shown, the blades 106 of two adjacent cutting mechanisms 10 are arranged in a parallelogram. By utilizing the principle of parallelograms and driven by the linkage mechanism 202, all cutting blades 101 can perform synchronous and precise cutting actions.

[0041] like Figure 2-3 As shown, the output end of the cutting gear 1021 is arranged parallel to the cutter bar 106, and their near ends are connected by the swing arm 105. Therefore, during the transmission process, the swing arm 105 can convert the rotational motion of the cutting gear 1021 into the arc trajectory of the cutter 101. By replacing the swing arm 105 with a corresponding length, the working radius of the cutter 101 can be expanded, thereby adapting to bottle mouths of different diameters and improving the coverage of the cutting trajectory.

[0042] The slanted bottle cutter 101 adjustment device provided in this application embodiment also includes an X-axis sliding mechanism 30. The X-axis sliding mechanism 30 has an X-axis base plate 301 and an X-axis slide block 302. The X-axis base plate 301 has two parallel X-axis sliding grooves 3011. The X-axis slide block 302 is installed on the X-axis base plate 301 and slides along the X-axis sliding grooves 3011.

[0043] Several X-axis slide blocks 302 are connected by X-axis push rods 303, one end of which extends to the end of the X-axis base plate 301 and is connected to a manual operating wheel or an X-axis driver 304, which can be a cylinder. Therefore, by activating the X-axis driver 304 or operating the manual control wheel, the X-axis push rods 303 can be driven to synchronously move all the adjusting seats 201 back and forth along the X-axis slide groove 3011, thereby controlling the X-axis distance between two adjacent cutting mechanisms 10.

[0044] Several adjustment seats 201 are movably assembled with the X-axis slide 302 through their horizontal mounting parts. More specifically, both the adjustment seat 201 and the X-axis slide 302 are provided with coaxially arranged connecting holes. The connecting holes are used to install a central rotating shaft to achieve a horizontally rotatable connection, so that the adjustment seat 201 can rotate horizontally relative to the X-axis slide 302.

[0045] The horizontal mounting portion of the adjusting seat 201 is also provided with an arc-shaped sliding hole 2011 penetrating the upper and lower surfaces. There are two arc-shaped sliding holes 2011, which are symmetrically distributed on both sides of the connecting hole. Several X-axis positioning columns 3021 are provided on the X-axis slide 302. The upper end of the X-axis positioning column is embedded in the arc-shaped sliding hole 2011 of the adjusting seat 201. Through the relative limiting cooperation between the positioning column and the arc-shaped sliding hole 2011, the rotation angle α of the adjusting seat 201 on the X-axis slide 302 is limited, forming a mechanical hard limit, ensuring that the rotation angle of the adjusting seat 201 is within the safe range, improving the deflection control accuracy of the adjusting seat 201, and integrating X-axis displacement and rotation adjustment, further reducing the space occupied by independent mechanisms and reducing failure points.

[0046] The rotation angle α is the angle between the side of the adjusting seat 201 in the direction of rotation and the horizontal line, and the range of the rotation angle α is 0-45°. Figure 1 As shown.

[0047] The slanted bottle cutter 101 adjustment device provided in this application embodiment also includes a lifting mechanism 40. The lifting mechanism 40 has a lifting base 401 and a Z-axis drive 402. The Z-axis drive 402 can be a cylinder. The Z-axis drive 402 is installed on the lifting base 401 and is installed below the X-axis base plate 301 and connected to the X-axis base plate 301 through a lead screw. It is used to drive the X-axis base plate 301 to lift, thereby realizing the Z-axis displacement control of the cutting mechanism 10.

[0048] Furthermore, guide posts 3012 are provided at the four corners of the bottom of the X-axis base plate 301, and these guide posts 3012 are slidably assembled with guide hole seats on the lifting base 401. The guide posts 3012 and the guide hole seats cooperate to prevent deflection, thereby improving the stability of the X-axis base plate 301 in the vertical lifting motion.

[0049] like Figure 3 As shown in the embodiment of this application, the adjusting device for the beveled bottle cutter 101 also includes a Y-axis base plate 50. A Y-axis positioning groove 501 is provided on the Y-axis base plate 50, and a Y-axis positioning post 502 is provided on the Y-axis positioning groove 501. Several Y-axis positioning holes 4011 penetrating the upper and lower surfaces are provided on both sides of the lifting base 401. When the lifting base 401 is fixedly installed, the upper ends of several Y-axis positioning posts 502 are embedded in the Y-axis positioning holes 4011 on both sides of the lifting base 401. The Y-axis positioning holes 4011 are strip-shaped holes, thus allowing for appropriate adjustment of the Y-axis displacement of the lifting base 401.

[0050] In addition, a sliding type lifting seat can be selected. For example, a Y-axis push rod 503 is connected to one side of the Y-axis base plate 50. One end of the Y-axis push rod 503 extends to the side of the Y-axis base plate 50 and is connected to a Y-axis driver 504. The Y-axis driver 504 can be a cylinder. Therefore, the Y-axis push rod 503 can be driven by the Y-axis driver 504, thereby controlling the lifting seat to slide along the Y-axis slide groove direction, thereby realizing the displacement adjustment of the cutting mechanism 10 in the Y-axis direction.

[0051] The working process of the beveled bottle cutter 101 adjustment device provided in this embodiment is as follows:

[0052] 1. Initial positioning: The main control system 60 controls the Y-axis driver 504 to start according to the bottle mouth parameters, driving the lifting base 401 to the target station (Y-axis); controls the Z-axis driver 402 to start, adjusting the height of the X-axis base plate 301 (Z-axis) so that the cutter 101 is aligned with the center plane of the bottle mouth; controls the X-axis driver 304 to start, driving the X-axis push rod 303 to move all slides synchronously along the slide groove along the X-axis to match the bottle mouth spacing.

[0053] After initialization, there is no need to repeatedly adjust the axial displacement of the cutter 101. When changing the bottle type, the three-axis coordinates are quickly reset through the automatic control of the main control system 60. The entire process does not require independent adjustment of the single blade, saving time and effort.

[0054] 2. Synchronous angle adjustment: The main control system starts the 60 stepper motor 2022, which drives the transmission screw 2021, causing the transmission screw 2021 to mesh with the synchronous gear 2012 on the adjusting seat 201, thereby driving all adjusting seats 201 to rotate synchronously to the set angle (such as 45°); and the X-axis positioning pin 3021 on the X-axis slide 302 limits the rotation within the arc-shaped sliding hole 2011 of the adjusting seat 201, preventing excessive rotation and ensuring safety and reliability.

[0055] 3. Cutting execution: The main control system 60 sends a command to control the cutting driver 103 to start, which drives the cutting transmission assembly 102. The output end of the cutting gear 1021 drives the knife bar 106 through the swing arm 105, thereby controlling the cutter 101 to cut in an arc shape and remove the overflow from the bottle mouth.

[0056] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A cutter adjustment device for a blow molding machine, characterized in that, It includes a cutting mechanism, an angle adjustment mechanism, and a main control system. The angle adjustment mechanism has an adjustment seat, and several adjustment seats are arranged along the X-axis. Each adjustment seat is equipped with the cutting mechanism. The several adjustment seats are interconnected through a linkage mechanism to synchronously adjust the cutting angle of the cutting mechanism for the overflow of the inclined bottle. The cutting mechanism includes a cutter, a cutting transmission assembly, and a cutting driver. The output end of the cutting transmission assembly is connected to the cutter, and the cutting driver is electrically connected to the main control system. The output end of the cutting driver is connected to the input end of the cutting transmission assembly. After receiving relevant instructions from the main control system, the cutting driver drives the cutting transmission assembly and drives the cutter so that all cutters cut the overflow of the batch of angled bottles according to the cutting angle adjusted by the adjusting seat.

2. The cutter adjustment device for a blow molding machine as described in claim 1, characterized in that, The cutting transmission assembly is mounted on the back of the adjusting seat via a mounting base. The cutting transmission assembly has a cutting gear and a cutting rack. The output shaft of the cutting gear passes vertically through the front of the adjusting seat and is connected to the cutter. The cutting rack meshes with the cutting gear in a vertical position. The cutting driver is mounted on the mounting base and its output end is connected to the cutting rack drive.

3. The cutter adjustment device for a blow molding machine as described in claim 2, characterized in that, The output shaft of the cutting gear passes through the front of the adjusting seat and is connected to the cutter bar via a rocker arm. One end of the cutter bar is connected to the output shaft of the cutting gear via the rocker arm, and the other end of the cutter bar is connected to the cutter.

4. The cutter adjustment device for a blow molding machine as described in claim 1, characterized in that, The linkage mechanism includes a transmission screw, a stepper motor or an operating handwheel for driving the transmission screw, a synchronous gear on the adjusting seat, the transmission screw being horizontally arranged along the arrangement direction of the plurality of adjusting seats and meshing with the synchronous gear on each adjusting seat, and the stepper motor or operating handwheel being located at the end of the transmission screw for driving the transmission screw to control the synchronous rotation of the plurality of adjusting seats.

5. The cutter adjustment device for a blow molding machine as described in claim 1, characterized in that, It also includes an X-axis sliding mechanism, which has an X-axis base plate and an X-axis slide block. An X-axis sliding groove is provided on the X-axis base plate. The X-axis slide block is installed on the X-axis base plate and slides along the X-axis sliding groove. The adjusting seat is installed on the X-axis slide block and can rotate horizontally relative to the X-axis slide block.

6. The cutter adjustment device for a blow molding machine as described in claim 5, characterized in that, The adjusting seat and the X-axis slide are rotatably connected by a central rotating shaft. The adjusting seat has an arc-shaped sliding hole that runs through the upper and lower surfaces. The X-axis slide has several X-axis positioning pins with their upper ends embedded in the arc-shaped sliding hole. The rotation angle of the adjusting seat on the X-axis slide is limited by the cooperation between the positioning pin and the arc-shaped sliding hole.

7. The cutter adjustment device for a blow molding machine as described in claim 6, characterized in that, The rotation angle is the angle between the side of the adjustment seat in the direction of rotation and the horizontal line after the seat is rotated, and the range of the rotation angle is 0-45°.

8. The cutter adjustment device for a blow molding machine as described in claim 5, characterized in that, Several X-axis slides are connected to each other by X-axis push rods, one end of which extends to the end of the X-axis base plate and is connected to a manual operating wheel or an X-axis driver.

9. The cutter adjustment device for a blow molding machine as described in claim 5, characterized in that, It also includes a lifting mechanism, which has a lifting base and a Z-axis drive. The Z-axis drive is mounted on the lifting base and its output end is connected to the X-axis base plate for driving the X-axis base plate to lift.

10. The cutter adjustment device for a blow molding machine as described in claim 9, characterized in that, It also includes a Y-axis base plate, on which a Y-axis positioning groove and a Y-axis positioning column are provided. The lifting base has several Y-axis positioning holes that penetrate the upper and lower surfaces. The upper end of the Y-axis positioning column is embedded in the Y-axis positioning hole for positioning and installing the lifting base.

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