Hydraulic edge trimmer

Abstract

The invention discloses a hydraulic edge trimmer, and relates to the technical field of edge trimmers, the hydraulic edge trimmer comprises a mold moving arm, one end of the mold moving arm is fixedly provided with an automatic protective door for opening and closing, and one side of the automatic protective door is provided with a movable platform ladder capable of freely moving. The automatic protection door has the advantages that the automatic protection door driven by the mold moving arm is arranged at one end of the edge trimmer, related personnel close to the edge trimmer are protected through the automatic protection door, chippings generated in the edge trimming process are prevented from splashing and hurting the related personnel, the operation safety is guaranteed, and the production efficiency is improved. The movable platform ladder capable of freely moving is arranged on one side of the automatic protective door, related personnel can move the movable platform ladder to a required position according to working requirements, and the movable platform ladder is used for supporting, so that working contents at corresponding heights can be conveniently operated, the convenience and safety of edge cutting operation are improved, and the working efficiency is improved. And the automatic protective door can protect related personnel standing on the movable platform ladder, so that the working safety of the personnel is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of edge trimmers, in particular to a hydraulic edge trimmer. Background Art

[0002] Trimming machines are essential equipment for the production of die-casting molds. They are primarily used to trim excess edges of products formed by die-casting. Hydraulic trimming machines are commonly used in various aluminum alloy (aluminum-magnesium alloy) die-casting processes, such as trimming, cutting nozzles, and removing slag lumps. They are semi-automated mechanical processing equipment and can also be used in other industries such as hardware assembly, riveting, and stamping, as well as for the pressing, trimming, assembly, and stamping of non-metallic products. With the development of society, technological advancements are constantly occurring, labor costs are increasing, and safety awareness is heightened. Mechanical processing equipment requires higher standards of safety protection, especially for the personal safety of equipment operators, which is increasingly receiving attention from companies and enterprises.

[0003] Existing hydraulic trimming machines usually have a large overall structure and are very inconvenient for operators to operate due to height restrictions. They require padding supports under their feet to increase the operating height for easier trimming operations. In addition, the debris generated during operation can easily splash onto the operator, causing injury to the operator, posing certain safety risks.

[0004] In response to the above problems, a hydraulic trimming machine is proposed, which supports and protects the operator by providing a movable platform and an automatic protection structure, thereby improving the convenience and safety of operation. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a hydraulic trimming machine, which has the advantages of supporting and protecting the operator, and solves the problems of insufficient operating height of the operator and potential safety hazards.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a hydraulic edge trimming machine, comprising a fixed frame supported by pre-buried foundation piles, a mold lifter fixedly installed inside the fixed frame, a guide mold frame supported by the pre-buried foundation is provided on one side of the mold lifter, a mold moving arm driven by a hydraulic system is provided above the guide mold frame, an automatic protective door for opening and closing is fixedly installed on one end of the mold moving arm, a freely movable mobile platform ladder is provided on one side of the automatic protective door, a ladder connecting the fixed frame up and down is fixedly installed on one end of the fixed frame, a ladder safety door is fixedly installed on the bottom of the ladder, mold limiting grooves for positioning the mold are provided on both sides of the middle of the mold lifter, and movable positioning blocks for positioning the mold are movably connected inside the fixed frame and at both ends vertically distributed on the mold lifter.

[0007] Preferably, a material discharge chute for guiding waste materials is provided in the middle of the fixed frame, a control console frame for support is provided at the top of the fixed frame, an electric control box connected to the mains, a servo power system and a stroke cylinder for driving, an oil tank and a core control oil pipe for supplying oil to the stroke cylinder, and a water cooling system for cooling are fixedly installed on the top of the control console frame, a trimming table for performing the trimming process is fixedly installed at the output end of the stroke cylinder, and the electric control box is signal-connected to the servo power system, the stroke cylinder and the water cooling system.

[0008] The above technical solution is adopted: the fixed frame is supported by pre-buried foundation piles, a material discharge chute is opened in the middle to guide the waste to fall, and the top control console is integrated with core components such as the electric control box, servo power system, and stroke cylinder to provide stable support and power source for the trimming machine. The ladder is fixed to one end of the control console, connecting the fixed frame up and down, and the ladder safety door at the bottom ensures the safety of personnel going up and down. The overall structure enhances stability through the pre-buried design to meet the needs of heavy-duty trimming operations.

[0009] Preferably, the mold lifter is connected to the electric control box signal, the mold lifter is distributed on both sides of the discharge chute, one end of the guide mold frame is fixedly installed on the fixed frame, and the other end of the guide mold frame is provided with a support rod support fixedly connected to the embedded foundation.

[0010] The above technical solution is adopted: the mold lifter is connected to the electric control box signal and distributed on both sides of the discharge chute. The mold is positioned through the mold limit groove to ensure the trimming accuracy. One end of the guide mold frame is fixed to the fixed frame, and the other end is connected to the embedded foundation through the support rod bracket to provide guide support for the mold moving arm to ensure the stability of the mold movement process. The two work together to achieve precise positioning and stable transmission of the mold.

[0011] Preferably, the mold shifting arm and the core control oil pipe are fixedly installed, the mold shifting arm and the electric control box signal are connected, the mold shifting arm is fixedly installed at one end of the fixed frame, the two ends of the mold shifting arm are respectively connected to the top end of the fixed frame and the bottom end of the control console frame, and the output end of the mold shifting arm and the automatic protective door are fixedly installed.

[0012] The above technical solution is adopted: the mold transfer arm is driven by a hydraulic system, connected to the core control oil pipe, and controlled by the electronic control box to achieve precise movement. The automatic protective door is fixed at its output end, which drives the opening and closing of the protective door through movement. At the same time, it provides a protective barrier during the trimming process to prevent debris from splashing. The hydraulic drive design of the mold transfer arm ensures the stability and reliability of the protective door movement.

[0013] Preferably, the automatic protective door is located on one side of the fixed frame, the bottom of the automatic protective door is provided with a guide slot that engages with the top of the guide mold frame, the interior of the automatic protective door is provided with a plurality of protective notches, and one side of the automatic protective door is provided with a human-machine interaction box that is connected to the electric control box signal.

[0014] The above technical solution is adopted: the guide slot at the bottom of the automatic protective door is engaged with the top of the guide mold frame to ensure guidance during movement. The internal protective slot can reduce the splash of cutting debris. The human-machine interaction box on one side is connected to the electric control box to facilitate real-time monitoring and control by the operator. The protective door is driven by the mold moving arm and closes during the cutting operation to form a safe protection area to ensure the safety of personnel.

[0015] Preferably, the bottom of the mobile platform ladder is provided with moving wheels for driving it, the mobile platform ladder is placed on one side of the fixed frame, the mobile platform ladder and the automatic protective door are located on the same side, and both sides of the mobile platform ladder are provided with integrally detachable safety handrails, and one end of the top of the mobile platform ladder is provided with a guardrail that can be flipped open and closed, the guardrail is located between the safety handrails, and the top surface of the mobile platform ladder and the top surface of the fixed frame are located in the same plane.

[0016] The above technical solution is adopted: the moving wheels at the bottom of the mobile platform ladder support free movement, the top surface is flush with the top surface of the fixed frame, and the detachable safety handrails and flip guardrails on both sides provide multiple protections. The operator can move it to the appropriate position according to needs, increase the operating height, solve the height restriction problem, and cooperate with the automatic protective door to form a safe operating space, thereby improving the convenience and safety of operation.

[0017] Preferably, the ladder is fixedly mounted on one end of the control console frame, the bottom surface of the ladder and the top surface of the mobile platform ladder are located in the same plane, the ladder safety door is located above the mobile platform ladder, the mold limit groove is opened at the top of the fixed frame, the movable positioning block is connected to the electrical control box signal, and the movable positioning blocks are located on both sides of the discharge chute.

[0018] The above technical solution is adopted: the movable positioning blocks are connected to the signal of the electric control box and are located on both sides of the discharge chute. They can automatically adjust their position according to the size of the mold, and cooperate with the mold limit groove of the mold lifter to realize two-way positioning of the mold, ensuring that the mold is firmly fixed during the trimming process, avoiding trimming deviation or equipment damage caused by inaccurate positioning.

[0019] The fixed frame integrates core components with the control console through a pre-buried structure. The die lifter and the movable positioning block work together to complete mold positioning. The die moving arm drives the automatic protective door to achieve safety protection and mobile guidance. The mobile platform ladder solves the operation height problem and provides safety support. The electric control box connects various components through signals to achieve automatic control. The entire system ensures the accuracy and efficiency of trimming operations and significantly improves the safety and convenience of operators through the coordination of mechanical positioning, hydraulic drive, safety protection and humanized operation design.

[0020] Compared with the prior art, the present invention provides a hydraulic trimming machine with the following beneficial effects: The hydraulic trimming machine is provided with an automatic protective door driven by a die-moving arm at one end of the trimming machine, and the automatic protective door is used to protect relevant personnel close to the trimming machine to prevent relevant personnel from being injured by flying debris generated during the trimming process, thereby ensuring the safety of operation. A freely movable mobile platform ladder is provided on one side of the automatic protective door, and relevant personnel can move the mobile platform ladder to a required position according to work requirements and support it with the mobile platform ladder to facilitate operation of work content at a corresponding height, thereby improving the convenience and safety of the trimming operation. The automatic protective door can protect relevant personnel standing on the mobile platform ladder to ensure the safety of personnel at work, and the mobile platform ladder can move synchronously when the automatic protective door moves, thereby improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention; Figure 2 This is a schematic diagram of the local structure of the first embodiment of the present invention; Figure 3 This is a structural diagram of a mobile platform ladder proposed in Example 1 of the present invention; Figure 4 This is a schematic diagram of the structure proposed in the second embodiment of the present invention; Figure 5 This is a schematic diagram of the local structure proposed in the second embodiment of the present invention.

[0022] In the figure: 1-fixed frame, 2-die lifter, 3-die guide frame, 4-die transfer arm, 5-automatic protection door, 6-mobile platform ladder, 7-climbing ladder, 8-ladder safety door, 9-die limit groove, 10-movable positioning block, 11-flip support plate, 12-flip trimming table, 13-flip power cylinder. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] For example 1, please refer to Figure 1-3A hydraulic trimming machine comprises a fixed frame 1 supported by pre-buried foundation piles, a mold lifter 2 is fixedly installed inside the fixed frame 1, a guide mold frame 3 supported by the pre-buried foundation is provided on one side of the mold lifter 2, a mold moving arm 4 driven by a hydraulic system is provided above the guide film frame 3, an automatic protective door 5 for opening and closing is fixedly installed on one end of the mold moving arm 4, a freely movable mobile platform ladder 6 is provided on one side of the automatic protective door 5, a ladder 7 connecting the fixed frame 1 up and down is fixedly installed on one end of the fixed frame 1, a ladder safety door 8 is fixedly installed on the bottom of the ladder 7, mold limiting grooves 9 for positioning the mold are provided on both sides of the middle of the mold lifter 2, and movable positioning blocks 10 for positioning the mold are movably connected at both ends of the fixed frame 1 and the vertical distribution of the mold lifter 2.

[0025] A material discharge chute for guiding waste materials is provided in the middle of the fixed frame 1, and a control console frame for support is provided at the top of the fixed frame 1. An electric control box connected to the mains, a servo power system and a stroke cylinder for driving, an oil tank and a core control oil pipe for supplying oil to the stroke cylinder, and a water cooling system for cooling are fixedly installed on the top of the control console frame. A trimming table for performing the trimming process is fixedly installed at the output end of the stroke cylinder, and the electric control box is signal-connected to the servo power system, the stroke cylinder and the water cooling system.

[0026] The fixed frame 1 is supported by pre-buried foundation piles, with a discharge chute in the middle to guide the waste to fall. The top control frame integrates core components such as the electronic control box, servo power system, and stroke cylinder to provide stable support and power source for the trimming machine. The ladder 7 is fixed to one end of the control frame, connecting the fixed frame up and down. The ladder safety door 8 at the bottom ensures the safety of personnel going up and down. The overall structure enhances stability through the pre-buried design to meet the needs of heavy-duty trimming operations.

[0027] The die lifter 2 is connected to the electric control box signal. The die lifter 2 is distributed on both sides of the discharge chute. One end of the guide die frame 3 is fixedly installed on the fixed frame 1, and the other end of the guide die frame 3 is provided with a support rod bracket fixedly connected to the embedded foundation.

[0028] The mold lifter 2 is connected to the signal of the electric control box and is distributed on both sides of the discharge chute. The mold is positioned through the mold limit groove 9 to ensure the trimming accuracy. One end of the guide mold frame 3 is fixed to the fixed frame 1, and the other end is connected to the embedded foundation through the support rod bracket, providing guide support for the mold moving arm 4 to ensure the stability of the mold movement process. The two work together to achieve precise positioning and stable transmission of the mold.

[0029] The mold shifting arm 4 and the core control oil pipe are fixedly installed, the mold shifting arm 4 and the electric control box signal are connected, the mold shifting arm 4 is fixedly installed at one end of the fixed frame 1, and the two ends of the mold shifting arm 4 are respectively connected to the top end of the fixed frame 1 and the bottom end of the control console frame, and the output end of the mold shifting arm 4 and the automatic protective door 5 are fixedly installed.

[0030] The mold transfer arm 4 is driven by a hydraulic system and connected to the core control oil pipe. It is controlled by the electronic control box to achieve precise movement. The automatic protective door 5 is fixed at its output end, which drives the opening and closing of the protective door through movement. At the same time, it provides a protective barrier during the trimming process to prevent debris from splashing. The hydraulic drive design of the mold transfer arm 4 ensures the stability and reliability of the movement of the protective door.

[0031] The automatic protective door 5 is located on one side of the fixed frame 1. A guide slot is provided at the bottom of the automatic protective door 5 and is engaged with the top of the guide mold frame 3. Several protective notches are provided inside the automatic protective door 5. A human-machine interaction box is provided on one side of the automatic protective door 5 and is connected to the electric control box signal.

[0032] The guide slot at the bottom of the automatic protective door 5 is engaged with the top of the guide mold frame 3 to ensure guidance during movement. The internal protective notch can reduce the splash of cutting debris. The human-machine interaction box on one side is connected to the electric control box to facilitate real-time monitoring and control by the operator. The protective door is driven by the mold moving arm 4 and closes during the cutting operation to form a safe protection area to ensure the safety of personnel.

[0033] The bottom of the mobile platform ladder 6 is provided with a moving wheel for driving it. The mobile platform ladder 6 is placed on one side of the fixed frame 1. The mobile platform ladder 6 and the automatic protective door 5 are located on the same side. Both sides of the mobile platform ladder 6 are provided with integrally detachable safety handrails. One end of the top of the mobile platform ladder 6 is provided with a guardrail that can be flipped open and closed. The guardrail is located between the safety handrails. The top surface of the mobile platform ladder 6 and the top surface of the fixed frame 1 are located in the same plane.

[0034] The bottom moving wheels of the mobile platform ladder 6 support free movement, and the top surface is flush with the top surface of the fixed frame 1. The detachable safety handrails and flip guardrails on both sides provide multiple protections. The operator can move it to a suitable position according to needs, increase the operating height, solve the height restriction problem, and cooperate with the automatic protective door 5 to form a safe operating space, thereby improving the convenience and safety of operation.

[0035] The ladder 7 is fixedly installed on one end of the control console frame 1. The bottom surface of the ladder 7 and the top surface of the mobile platform ladder 6 are located in the same plane. The ladder safety door 8 is located above the mobile platform ladder 6. The mold limit groove 9 is opened at the top of the fixed frame 1. The movable positioning block 10 is connected to the electric control box signal. The movable positioning block 10 is located on both sides of the discharge chute.

[0036] The movable positioning block 10 is connected to the signal of the electric control box and is located on both sides of the discharge chute. It can automatically adjust its position according to the size of the mold and cooperate with the mold limit groove 9 of the mold lifter 2 to realize two-way positioning of the mold, ensuring that the mold is firmly fixed during the trimming process and avoiding trimming deviation or equipment damage caused by inaccurate positioning.

[0037] The fixed frame 1 integrates the core components with the control console through the embedded structure. The mold lifter 2 and the movable positioning block 10 work together to complete the mold positioning. The mold transfer arm 4 drives the automatic protective door 5 to achieve safety protection and mobile guidance. The mobile platform ladder 6 solves the operation height problem and provides safety support. The electric control box connects the various components through signals to achieve automatic control. The entire system ensures the accuracy and efficiency of the trimming operation and significantly improves the safety and convenience of the operator through the coordination of mechanical positioning, hydraulic drive, safety protection and humanized operation design.

[0038] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0039] When in use, the fixed frame 1 is firmly supported by the pre-buried foundation piles, the electric control box on the console frame controls the servo power system and the stroke cylinder to start, the stroke cylinder drives the trimming table to perform the trimming process, the waste is discharged through the middle discharge chute, the mold lifter 2 positions the mold through the mold limit groove 9, and the movable positioning block 10 automatically adjusts the position under the control of the electric control box to achieve two-way fixation of the mold, the mold moving arm 4 is driven by the hydraulic system to drive the automatic protective door 5 to move along the guide mold frame 3, the guide slot at the bottom of the protective door is engaged with the guide mold frame 3 to ensure smooth movement, and the internal protective slot is used to block the trimming debris when closed. To prevent chips from flying and ensure the safety of the operator, the operator can push the mobile platform ladder 6 (driven by the bottom moving wheel) to the appropriate position, and its top surface is flush with the top surface of the fixed frame 1. The safety handrail and flip guardrail provide support and protection to solve the problem of insufficient operating height. The ladder 7 connects the upper and lower fixed frames, and the ladder safety door 8 prevents people from accidentally falling. During the whole process, the electric control box coordinates the linkage of various components, realizing full process automation and humanized design from mold positioning, edge trimming execution to safety protection and operation support, which not only ensures edge trimming accuracy and efficiency, but also significantly improves operational safety and convenience.

[0040] For example 2, please refer to Figure 4-5 A hydraulic trimming machine comprises a fixed frame 1 supported by pre-buried foundation piles, and a flip support plate 11 for supporting and fixing is fixedly installed on both sides of one end of the top of the fixed frame 1, and the internal rotation of the flip support plate 11 is connected to a flip trimming table 12, and the flip trimming table 12 is located on one side of the fixed frame 1, and a flip power cylinder 13 for flipping and driving it is provided at one end. A feeding chute for guiding waste is opened in the middle of the fixed frame 1, and a supporting control console frame is provided at the top of the fixed frame 1. An electric control box connected to the mains, a servo power system and a stroke cylinder for driving, an oil tank and a core control oil pipe for supplying oil to the stroke cylinder, and a water cooling system for cooling are fixedly installed on the top of the control console frame. The output end of the stroke cylinder is fixedly installed with a trimming table for performing the trimming process, and the electric control box is signal-connected to the servo power system, the stroke cylinder and the water cooling system.

[0041] Specifically, according to the requirements of trimming, the flip power cylinder 13 is controlled to drive the flip trimming table 12 to flip, and the flip trimming table 12 is used to adjust the trimming angle, so as to facilitate the adjustment of the trimming angle according to the requirements and improve the convenience of trimming.

[0042] To sum up, in this hydraulic trimming machine, an automatic protective door 5 driven by a die-shifting arm 4 is provided at one end of the trimming machine. The automatic protective door 5 is used to protect relevant personnel close to the trimming machine to avoid the debris generated during the trimming process from splashing and injuring relevant personnel, thereby ensuring the safety of operation. A freely movable mobile platform ladder 6 is provided on one side of the automatic protective door 5. Relevant personnel can move the mobile platform ladder 6 to the required position according to work requirements, and support it through the mobile platform ladder 6 to facilitate operation of work content at corresponding heights, thereby improving the convenience and safety of trimming operations. The automatic protective door 5 can protect relevant personnel standing on the mobile platform ladder 6 to ensure the safety of personnel work. When the automatic protective door 5 moves, the mobile platform ladder 6 can move synchronously to improve the convenience of operation.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic trimming machine, characterized in that: The invention comprises a fixed frame (1) supported by pre-buried foundation piles, a mold lifter (2) is fixedly installed inside the fixed frame (1), a guide mold frame (3) supported by the pre-buried foundation is provided on one side of the mold lifter (2), a mold moving arm (4) driven by a hydraulic system is provided above the guide mold frame (3), an automatic protective door (5) for opening and closing is fixedly installed on one end of the mold moving arm (4), a freely movable mobile platform ladder (6) is provided on one side of the automatic protective door (5), a ladder (7) connected to the upper and lower parts of the fixed frame (1) is fixedly installed on one end of the fixed frame (1), a ladder safety door (8) is fixedly installed on the bottom of the ladder (7), mold limiting grooves (9) for positioning the mold are provided on both sides of the middle part of the mold lifter (2), and movable positioning blocks (10) for positioning the mold are movably connected to the fixed frame (1) and the two ends vertically distributed therein.

2. The hydraulic trimming machine according to claim 1, characterized in that: A feeding chute for guiding waste is provided in the middle of the fixed frame (1), a control console frame for supporting is provided at the top of the fixed frame (1), an electric control box connected to the mains, a servo power system and a stroke oil cylinder for driving, an oil tank and a core control oil pipe for supplying oil to the stroke oil cylinder, and a water cooling system for cooling are fixedly installed at the top of the control console frame, a trimming table for performing the trimming process is fixedly installed at the output end of the stroke oil cylinder, and the electric control box is signal-connected to the servo power system, the stroke oil cylinder, and the water cooling system.

3. The hydraulic trimming machine according to claim 2, characterized in that: The mold lifter (2) is connected to the electric control box signal, and the mold lifter (2) is distributed on both sides of the material discharge chute. One end of the guide mold frame (3) is fixedly installed with the fixed frame (1), and the other end of the guide mold frame (3) is provided with a support rod bracket fixedly connected to the embedded foundation.

4. The hydraulic trimming machine according to claim 1, characterized in that: The mold shifting arm (4) and the core control oil pipe are fixedly installed, the mold shifting arm (4) is connected to the electric control box signal, the mold shifting arm (4) is fixedly installed on one end of the fixed frame (1), the two ends of the mold shifting arm (4) are respectively connected to the top end of the fixed frame (1) and the bottom end of the control frame, and the output end of the mold shifting arm (4) and the automatic protective door (5) are fixedly installed.

5. The hydraulic trimming machine according to claim 1, characterized in that: The automatic protective door (5) is located on one side of the fixed frame (1), the bottom of the automatic protective door (5) is provided with a guide slot that is engaged with the top of the guide mold frame (3), the interior of the automatic protective door (5) is provided with a plurality of protective notches, and one side of the automatic protective door (5) is provided with a human-machine interaction box that is connected to the electric control box signal.

6. The hydraulic trimming machine according to claim 1, characterized in that: The bottom of the mobile platform ladder (6) is provided with a moving wheel for driving the mobile platform ladder (6), the mobile platform ladder (6) is placed on one side of the fixed frame (1), the mobile platform ladder (6) and the automatic protective door (5) are located on the same side, both sides of the mobile platform ladder (6) are provided with integrally detachable safety handrails, one end of the top of the mobile platform ladder (6) is provided with a guardrail that can be flipped open and closed, the guardrail is located between the safety handrails, and the top surface of the mobile platform ladder (6) and the top surface of the fixed frame (1) are located on the same plane.

7. The hydraulic trimming machine according to claim 1, characterized in that: The ladder (7) is fixedly mounted on one end of the control frame (1), the bottom surface of the ladder (7) and the top surface of the movable platform ladder (6) are located in the same plane, the ladder safety door (8) is located above the movable platform ladder (6), the mold limit groove (9) is opened at the top of the fixed frame (1), the movable positioning block (10) is connected to the electric control box signal, and the movable positioning block (10) is located on both sides of the discharge chute.

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