Plastic mold surface milling equipment and operation method thereof

Abstract

The invention relates to the technical field of mold grinding and milling, and discloses plastic mold surface grinding and milling equipment and an operation method thereof.The plastic mold surface grinding and milling equipment comprises a protection assembly and a protection part, and the protection part comprises a protection frame, a partition plate, a movable frame, a driving rod, a rotating rod and a rotating column. The mold polishing device has the beneficial effects that in the mold polishing process, the protection plates capable of being flexibly closed and opened are additionally arranged on the two sides of the baffle, space on the two sides can be effectively closed during polishing, sparks are successfully prevented from being sputtered to the two sides, and the defect caused by the fact that only one baffle is arranged on one side and the two sides are exposed in the prior art is overcome; scalding accidents caused by the fact that sparks splash to exposed parts such as the face, the neck and the limbs of an operator are practically prevented, the personal safety and health of the operator are guaranteed, after polishing operation is finished, the baffle can be automatically and slowly opened, the requirement for careful observation of the die polishing effect of the operator is met, and the working efficiency is improved. And therefore, the operation convenience and the overall working efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of mold grinding and milling, in particular to a plastic mold surface grinding and milling device and an operating method thereof. Background Art

[0002] Plastic mold surface grinding and milling equipment is a mechanical device used for plastic mold processing. It mainly processes the surface of plastic molds by grinding and milling. The purpose is to improve the accuracy, flatness and finish of the mold surface. At the same time, it can also improve the performance of the mold surface, such as wear resistance and demoulding properties, to meet the high-quality production requirements of plastic molds. The surface grinder uses a high-speed rotating grinding wheel to finely grind the flat parts of the mold. It can control the flatness at a high precision and make the surface roughness reach the ideal value, effectively remove processing allowances and defects, ensure the flatness and finish of the mold plane, and improve The overall quality of the mold ensures that the mold can be accurately molded and produce high-quality plastic products in subsequent injection molding and other processes. During the mold grinding operation, a large number of sparks will burst out. In the prior art, a baffle is usually placed on one side of the grinding area to block the sparks. However, in order to facilitate the operator to observe the grinding status in real time, the two sides of the grinding area are exposed without shielding and protection. In this case, the sparks splashed from both sides during the grinding process will cause safety risks to nearby operators, such as burns on the exposed skin of the face, neck and limbs, thereby posing a threat to the personal safety and health of the operators. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above and / or existing problems in the existing plastic mold surface grinding and milling equipment and operation methods thereof, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that a large number of sparks will be generated during the mold grinding operation. Although the prior art has a baffle on one side to block the sparks, both sides are left exposed and unprotected for easy observation. Sparks splashed on both sides during grinding can easily burn the exposed skin of the operator, threatening his personal safety and health.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a plastic mold surface grinding and milling equipment and an operating method thereof, which comprises a protection assembly, a protection member, a protection frame, a partition, a movable frame, a driving rod, a rotating rod and a rotating column, wherein the partition is arranged on one side of the protection frame, the movable frame is fixed to the top of the partition, the driving rod is hinged to one end of the movable frame, the rotating rod is hinged to one end of the driving rod, and the rotating column is fixed to one side of the rotating rod;

[0007] An extrusion assembly is arranged below the protective member, and includes an extrusion member, including a gear, a rack, an extrusion block, an extrusion rod, a movable rod, an extrusion plate and a push plate. The gear is arranged below the protective member, the rack is located on one side of the gear, the rack is meshed with the gear, the extrusion block is fixed to the bottom of the rack, the extrusion rod is hinged to the bottom of the extrusion block, the movable rod is hinged to one end of the extrusion rod, the extrusion plate is fixed to one end of the movable rod, and the push plate is hinged to one side of the extrusion plate.

[0008] As a preferred solution of the plastic mold surface grinding and milling equipment and the operation method thereof described in the present invention, the protective component also includes a support member, which is arranged on the movable frame, a positioning frame is sleeved on the outer side of the movable frame, the positioning frame and the movable frame are hinged, a positioning block is sleeved on the outer side of the rotating rod, the positioning block and the rotating rod are rotatably connected via a rotating shaft, a fixed block is sleeved on the outer side of the rotating column, and the rotating column and the fixed block are rotatably connected via a rotating shaft.

[0009] As a preferred solution of the plastic mold surface grinding and milling equipment and its operation method described in the present invention, a first pulley is fixed to one end of the rotating column, a belt is sleeved on the outside of the first pulley, a second pulley is arranged inside the belt, and the second pulley is fixed to one side of the gear.

[0010] As a preferred solution of the plastic mold surface grinding and milling equipment and the operating method thereof described in the present invention, the extrusion assembly also includes a movable part, which is arranged on the rack, a slider is fixed on one side of the rack, a positioning column is inserted on the top of the slider, the slider and the positioning column are movably connected, a spring is fixed at the bottom of the slider, and the spring is fixed to the inner wall of the protective frame.

[0011] As a preferred solution of the plastic mold surface grinding and milling equipment and its operation method described in the present invention, a damping block is fixed on one side of the slider, a friction column is inserted on the top of the damping block, the damping block and the friction column are movably connected, and a friction block is sleeved on the outer side of the friction column.

[0012] As a preferred solution of the plastic mold surface grinding and milling equipment and its operation method described in the present invention, a flip plate is arranged inside the damping block, the flip plate and the damping block are hinged, a torsion spring is fixed on one side of the flip plate, and the torsion spring is fixed to the inner wall of the damping block.

[0013] As a preferred solution of the plastic mold surface grinding and milling equipment and the operating method thereof of the present invention, a connecting block is fixed on the top of the friction column, a supporting frame is sleeved on the outer side of the connecting block, and the supporting frame is fixed to one side of the protective frame.

[0014] As a preferred solution of the plastic mold surface grinding and milling equipment and its operating method described in the present invention, it also includes a main body component, which is arranged on the protective frame, including a sliding frame, a movable seat and a grinding wheel, the sliding frame is fixed to the bottom of the protective frame, the grinding wheel is arranged above the sliding frame, and the movable seat slides in the sliding frame.

[0015] As a preferred solution of the plastic mold surface grinding and milling equipment and the operating method thereof of the present invention, a grinding and milling machine is arranged on one side of the grinding wheel.

[0016] As a preferred solution of the surface grinding and milling equipment of the plastic mold and the operation method thereof of the present invention, firstly, the plastic mold is stably placed on the top of the moving seat, and the moving seat adopts an electromagnetic chuck fixing method, and generates a magnetic field by energizing the internal electromagnetic coil to firmly adsorb the plastic mold of the ferromagnetic material, so as to achieve stable positioning and ensure that it will not be displaced during the grinding process;

[0017] Then, the grinding wheel is started, and the grinding operation of the plastic mold is started by moving the grinding wheel to a position where the grinding wheel contacts the top of the plastic mold;

[0018] During the polishing process, the plastic mold is driven by the power of the moving seat to move back and forth stably in the sliding frame, thereby achieving comprehensive polishing of different positions of the mold and ensuring that the entire surface of the mold can be evenly and accurately processed.

[0019] The beneficial effects of the present invention are as follows: during the mold grinding process, protective plates that can be flexibly closed and opened are added on both sides of the baffle, which can effectively close the space on both sides during grinding, successfully blocking sparks from splashing to both sides, and eliminating the disadvantages caused by the traditional baffle being installed on only one side and leaving both sides exposed. It can effectively prevent the occurrence of scalding accidents caused by sparks splashing to exposed parts such as the operator's face, neck and limbs, thereby ensuring the personal safety and health of the operator. When the grinding operation is completed, the baffle can be opened slowly by itself, meeting the operator's need for detailed observation of the mold grinding effect, thereby improving the convenience of operation and overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is the overall structure diagram of the plastic mold surface grinding and milling equipment and its operation method.

[0022] Figure 2 A sliding frame cross-sectional structural diagram of a plastic mold surface grinding and milling device and an operating method thereof.

[0023] Figure 3 The protective frame structure diagram of the plastic mold surface grinding and milling equipment and its operation method.

[0024] Figure 4 A rack structure diagram of a plastic mold surface grinding and milling device and an operating method thereof.

[0025] Figure 5 Gear structure diagram of plastic mold surface grinding and milling equipment and its operation method.

[0026] Figure 6 The present invention is a structural diagram of a positioning column for a plastic mold surface grinding and milling device and an operating method thereof.

[0027] Figure 7 A structural diagram of an extruded plate for a plastic mold surface grinding and milling device and an operating method thereof.

[0028] Figure 8 A cross-sectional structural diagram of a damping block for a plastic mold surface grinding and milling device and an operating method thereof.

[0029] Fig. 9 Plastic mold surface grinding and milling equipment and operation method thereof Figure 8 A partial enlarged structural diagram in the middle.

[0030] Fig.10 The flip plate structure diagram of the plastic mold surface grinding and milling equipment and its operation method. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1

[0035] Reference Figure 2 to Figure 10 , which is the first embodiment of the present invention, and this embodiment provides a plastic mold surface grinding and milling equipment and an operating method thereof. The plastic mold surface grinding and milling equipment and the operating method thereof include a protective component 200, an extrusion component 300 and a main body component 100. The three can cooperate to block sparks from splashing during grinding to ensure personnel safety. After grinding, they can open slowly by themselves to meet observation needs, thereby improving operational convenience and work efficiency.

[0036] The protection assembly 200 includes a protection part 201, including a protection frame 201a, a partition 201b, a movable frame 201c, a driving rod 201d, a rotating rod 201e and a rotating column 201f. The partition 201b is arranged on one side of the protection frame 201a, the movable frame 201c is fixed to the top of the partition 201b, the driving rod 201d is hinged to one end of the movable frame 201c, the rotating rod 201e is hinged to one end of the driving rod 201d, and the rotating column 201f is fixed to one side of the rotating rod 201e.

[0037] The protective member 201 is composed of two groups, both of which are arranged on the sliding frame 101. When the movable seat 104 moves to one side of the protective frame 201a, the grinding wheel 102 will grind the mold, and sparks will be generated. The rotation of the rotating column 201f drives the rotating rod 201e to rotate, and the rotating rod 201e drives the driving rod 201d to move. The movement of the driving rod 201d drives the movable frame 201c to move. At this time, the movement of the movable frame 201c can drive the partition 201b to move, so that the partition 201b Close, so that the two sides of the protection frame 201a can be protected to prevent sparks from splashing from both sides. After grinding, the moving seat 104 will drive the mold back to its original position. At this time, the partition 201b will slowly open. On the way back to its original position, the grinding wheel 102 will also lightly grind the mold, which will produce a small amount of sparks. At this time, the partition 201b can be slowly opened to block the small amount of sparks. When the partition 201b is fully opened, the grinding situation can be polished, and it is also convenient for the operator to maintain the polished mold.

[0038] The extrusion assembly 300 is arranged below the protective member 201, and includes an extrusion member 301, including a gear 301a, a rack 301b, an extrusion block 301c, an extrusion rod 301d, a movable rod 301e, an extrusion plate 301f and a push plate 301g. The gear 301a is arranged below the protective member 201, the rack 301b is located on one side of the gear 301a, the rack 301b and the gear 301a are meshed, the extrusion block 301c is fixed to the bottom of the rack 301b, the extrusion rod 301d is hinged to the bottom of the extrusion block 301c, the movable rod 301e is hinged to one end of the extrusion rod 301d, the extrusion plate 301f is fixed to one end of the movable rod 301e, and the push plate 301g is hinged to one side of the extrusion plate 301f.

[0039] There are two gears 301a, both of which are arranged under the protective member 201. When the movable seat 104 moves to one side of the protective frame 201a, the push plate 301g can be squeezed to move it. The movement of the push plate 301g will drive the squeezing plate 301f to move. The movement of the squeezing plate 301f can drive the movable rod 301e to move. The movement of the movable rod 301e can drive the squeezing rod 301d to move. The movement of the squeezing rod 301d can drive the squeezing block 301c to move. The squeezing block 301c drives the rack 301b to move. The movement of the rack 301b can drive the two gears 301a to rotate towards each other. The rotation of the gear 301a can drive the two sets of partitions 201b to move, so that they can be closed.

[0040] Example 2

[0041] Reference Figure 2 to Figure 10 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0042] Specifically, the protective component 200 also includes a support member 202, which is arranged on a movable frame 201c. A positioning frame 202a is sleeved on the outer side of the movable frame 201c. The positioning frame 202a and the movable frame 201c are hinged. A positioning block 202b is sleeved on the outer side of the rotating rod 201e. The positioning block 202b and the rotating rod 201e are rotatably connected through a rotating shaft. A fixed block 202c is sleeved on the outer side of the rotating column 201f. The rotating column 201f and the fixed block 202c are rotatably connected through a rotating shaft.

[0043] The positioning frame 202a is fixed to the top of the protective frame 201a. The positioning frame 202a can be set to support the movable frame 201c to prevent the movable frame 201c from shifting. The positioning block 202b is fixed to the top of the protective frame 201a to support the rotating rod 201e. The fixed block 202c is fixed to the top of the protective frame 201a. The rotating column 201f can be supported by the setting of the fixed block 202c.

[0044] Specifically, a first pulley 202d is fixed to one end of the rotating column 201f, a belt 202e is sleeved on the outer side of the first pulley 202d, a second pulley 202f is arranged inside the belt 202e, and the second pulley 202f is fixed to one side of the gear 301a.

[0045] When the gear 301a rotates, it can drive the second pulley 202f to rotate. The second pulley 202f is rotatably connected to the protective frame 201a through a bearing. The rotation of the second pulley 202f can drive the belt 202e to rotate. The belt 202e can drive the first pulley 202d to rotate. At this time, the rotation of the first pulley 202d can drive the rotating column 201f to rotate, thereby moving the partition 201b.

[0046] Specifically, the extrusion assembly 300 also includes a movable part 302, which is arranged on the rack 301b. A slider 302a is fixed to one side of the rack 301b. A positioning column 302b is inserted into the top of the slider 302a. The slider 302a and the positioning column 302b are movably connected. A spring 302c is fixed to the bottom of the slider 302a, and the spring 302c is fixed to the inner wall of the protective frame 201a.

[0047] When the rack 301b moves to close the partition 201b, the rack 301b will drive the slider 302a to move. When the slider 302a moves, it can move on the positioning column 302b. At this time, the slider 302a can be supported to prevent the slider 302a from shifting during movement. When the slider 302a moves, a pulling force can be applied to the spring 302c. The rebound force of the spring 302c can drive the slider 302a to return to its original position, so that the partition 201b can be reopened. The positioning column 302b is fixed to the inner wall of the protective frame 201a, and the positioning column 302b is used to support the slider 302a.

[0048] Specifically, a damping block 302d is fixed to one side of the slider 302a, a friction column 302e is inserted into the top of the damping block 302d, the damping block 302d and the friction column 302e are movably connected, and a friction block 302f is sleeved on the outer side of the friction column 302e.

[0049] When the slider 302a moves, it will also drive the damping block 302d to move on the friction block 302f. When the partition 201b is closed, the friction block 302f will not cause friction with the damping block 302d. At this time, the slider 302a can move normally. When the partition 201b is opened, the friction between the friction block 302f and the damping block 302d can slow down the rebound force of the spring 302c. At this time, the slider 302a can slowly return to its original position, so that the partition 201b can be slowly opened.

[0050] Specifically, a flip plate 302g is provided in the damping block 302d, the flip plate 302g and the damping block 302d are hinged, a torsion spring 302h is fixed on one side of the flip plate 302g, and the torsion spring 302h is fixed to the inner wall of the damping block 302d.

[0051] When the diaphragm 201b closes and the damping block 302d moves to one side of the friction block 302f, the friction block 302f will squeeze the flip plate 302g to flip it. When the flip plate 302g flips, it can apply a torsional force to the torsion spring 302h. When the flip plate 302g is separated from the friction block 302f, the rotating force of the torsion spring 302h can drive the flip plate 302g to rotate back to its original position. When the diaphragm 201b is opened and the damping block 302d returns to its original position, the damping block The setting of 302d can effectively limit the flip plate 302g and prevent it from rotating to the other side. In this process, the speed at which the damping block 302d returns to its original position can be slowed down by the friction between the flip plate 302g and the friction block 302f made of rubber. The friction block 302f made of rubber can not only increase the friction force, but also has a certain elasticity, thereby effectively avoiding the situation where the flip plate 302g cannot move when rubbing against the flip plate 302g.

[0052] Example 3

[0053] Reference Figures 1 to 10 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0054] Specifically, a connection block 302i is fixed on the top of the friction column 302e, a support frame 302j is sleeved on the outside of the connection block 302i, and the support frame 302j is fixed to one side of the protection frame 201a.

[0055] The connection block 302i can be used to support the friction column 302e to prevent the friction column 302e from deflecting. The support frame 302j is fixed to the top of the sliding frame 101. The support frame 302j can be used to protect the damping block 302d and the friction column 302e.

[0056] Specifically, it also includes a main body component 100, which is arranged on the protective frame 201a, including a sliding frame 101, a moving seat 104 and a grinding wheel 102. The sliding frame 101 is fixed to the bottom of the protective frame 201a, the grinding wheel 102 is arranged above the sliding frame 101, and the moving seat 104 slides in the sliding frame 101.

[0057] The sliding frame 101 is used to guide and limit the movement trajectory of the moving seat 104. The sliding frame 101 is fixed at the bottom of the protective frame 201a, providing a stable sliding track for the moving seat 104. During the grinding and milling process of the plastic mold surface, the moving seat 104 slides in the sliding frame 101, so that the plastic mold placed on the moving seat 104 can move in a predetermined direction, ensuring the accuracy of the position of the mold and the stability of the movement during the grinding process, thereby ensuring that the grinding and milling operation can smoothly and accurately process various parts of the mold.

[0058] The movable seat 104 is a platform for placing the plastic mold, which is fixed by an electromagnetic suction cup. For the plastic mold made of ferromagnetic material, the internal electromagnetic coil is energized to generate a magnetic field to firmly adsorb the mold to ensure that the mold will not be displaced during the grinding process. In addition, the movable seat 104 can slide in the sliding frame 101 and drive the plastic mold to move through power. In the grinding operation, the movable seat 104 is the carrier of the mold. It moves the mold to the appropriate position under the grinding wheel 102 through its own movement, and reciprocates during the grinding process so that different positions of the mold can contact the grinding wheel 102 in turn to achieve comprehensive grinding.

[0059] The grinding wheel 102 is a tool for directly grinding the surface of the plastic mold. The grinding wheel 102 is located above the sliding frame 101. When it is started and moves to contact the top of the plastic mold, the mold surface is ground by high-speed rotation. During the grinding process, the grinding wheel 102 generates friction with the mold surface to remove excess, defects, etc. on the mold surface, thereby improving the accuracy, flatness and smoothness of the mold surface, thereby meeting the production requirements of the plastic mold.

[0060] Specifically, a milling machine 103 is provided on one side of the grinding wheel 102 .

[0061] The grinding machine 103 is the power source of the grinding wheel 102. The grinding machine 103 provides power for the grinding wheel 102 and drives the grinding wheel 102 to rotate at a high speed, so that the grinding wheel 102 has sufficient energy to grind the surface of the plastic mold. At the same time, the grinding machine 103 can also control parameters such as the rotation speed of the grinding wheel 102 to meet different grinding and milling requirements. The rotation speed and grinding force of the grinding wheel 102 are adjusted according to factors such as the mold material and the required surface roughness.

[0062] Specifically, first, the plastic mold is stably placed on the top of the moving seat 104. The moving seat 104 is fixed by an electromagnetic chuck. The internal electromagnetic coil is energized to generate a magnetic field to firmly adsorb the ferromagnetic plastic mold to achieve stable positioning and ensure that it will not be displaced during the grinding process.

[0063] Then, the grinding wheel 102 is started, and the grinding operation of the plastic mold is started by moving the grinding wheel 102 to a position where the grinding wheel 102 contacts the top of the plastic mold;

[0064] During the polishing process, the plastic mold is driven by the power of the moving seat 104 to move back and forth stably in the sliding frame 101, thereby achieving comprehensive polishing of different positions of the mold and ensuring that the entire surface of the mold can be evenly and accurately processed.

[0065] By carefully placing the plastic mold on the top of the moving seat 104, since the moving seat 104 uses an electromagnetic suction cup fixing mechanism, its internal electromagnetic coil forms a magnetic field after being energized, which can tightly absorb the plastic mold made of ferromagnetic material, achieve a stable positioning effect, and effectively prevent the mold from being displaced in the subsequent grinding process.

[0066] Then, the grinding wheel 102 is started and precisely controlled to move to a position where it contacts the top of the plastic mold, and then the grinding process of the plastic mold is officially started.

[0067] During the grinding process, the power drive system of the moving seat 104 drives the plastic mold adsorbed thereon to smoothly reciprocate within the track defined by the sliding frame 101. In this way, all parts of the mold can pass under the grinding wheel 102 in an orderly manner, ensuring that every surface of the mold can be evenly and accurately ground and milled, so that the accuracy, flatness and smoothness of the mold surface can reach the ideal standard and meet the quality requirements of the plastic mold in actual production applications.

[0068] When using the plastic mold surface grinding and milling equipment, first place the plastic mold steadily on the top of the moving seat 104. The moving seat 104 is fixed by an electromagnetic suction cup. The internal electromagnetic coil is energized to generate a magnetic field, which firmly absorbs the ferromagnetic material of the plastic mold to ensure that it will not move during the grinding process.

[0069] Then, the grinding wheel 102 is started and accurately moved to contact the top of the plastic mold to start the grinding operation. During the grinding process, the movable seat 104 is driven by power to stably reciprocate in the sliding frame 101, so that various parts of the mold pass under the grinding wheel 102 in turn to achieve comprehensive grinding, so that the entire surface of the mold is evenly and accurately processed, effectively improving the accuracy, flatness and smoothness of the mold surface to meet production requirements.

[0070] At the same time, when the movable seat 104 moves to one side of the protection frame 201a, it will squeeze the push plate 301g, and the push plate 301g will drive the extrusion plate 301f to move, thereby causing the movable rod 301e, the extrusion rod 301d, and the extrusion block 301c to move in sequence, and the extrusion block 301c will drive the rack 301b to move, so that the two gears 301a rotate in opposite directions. The rotation of the gear 301a drives the second pulley 202f to rotate, and the first pulley 202d is rotated through the belt 202e, thereby driving the rotating column 201f to rotate, and the rotation of the rotating column 201f will drive the rotating rod 201e, the driving rod 201d, and the movable frame 201c to move in sequence, and finally the partition 201b is closed, protecting both sides of the protection frame 201a to prevent sparks from splashing.

[0071] When the grinding is finished, the moving seat 104 drives the mold to return to its original position. At this time, the rack 301b drives the slider 302a to return to its original position under the rebound action of the spring 302c, so that the partition 201b is reopened. During the opening process of the partition 201b, the slider 302a drives the damping block 302d to move on the friction block 302f, and the friction block 302f and the flip plate 302g in the damping block 302d produce friction. With the help of the friction between the flip plate 302g and the rubber friction block 302f and the limit of the flip plate 302g by the torsion spring 302h, the speed of the damping block 302d returning to its original position is slowed down, so that the partition 201b is slowly opened. On the way back to its original position, the grinding wheel 102 will slightly grind the mold to produce a small amount of sparks, which can be blocked by the slow opening of the partition 201b. When the partition 201b is fully opened, it is convenient for the operator to check the grinding situation and maintain the mold.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A plastic mold surface grinding and milling equipment, characterized in that: include, A protection assembly (200) comprises a protection member (201), comprising a protection frame (201a), a partition (201b), a movable frame (201c), a driving rod (201d), a rotating rod (201e) and a rotating column (201f), wherein the partition (201b) is arranged on one side of the protection frame (201a), the movable frame (201c) is fixed to the top of the partition (201b), the driving rod (201d) is hinged to one end of the movable frame (201c), the rotating rod (201e) is hinged to one end of the driving rod (201d), and the rotating column (201f) is fixed to one side of the rotating rod (201e); The extrusion assembly (300) is arranged below the protective member (201), and comprises an extrusion member (301), including a gear (301a), a rack (301b), an extrusion block (301c), an extrusion rod (301d), a movable rod (301e), an extrusion plate (301f) and a push plate (301g), wherein the gear (301a) is arranged below the protective member (201), the rack (301b) is located on one side of the gear (301a), and the The rack (301b) is meshed with the gear (301a), the extrusion block (301c) is fixed to the bottom of the rack (301b), the extrusion rod (301d) is hinged to the bottom of the extrusion block (301c), the movable rod (301e) is hinged to one end of the extrusion rod (301d), the extrusion plate (301f) is fixed to one end of the movable rod (301e), and the push plate (301g) is hinged to one side of the extrusion plate (301f).

2. The plastic mold surface grinding and milling equipment according to claim 1, characterized in that: The protection component (200) further comprises a support member (202) which is arranged on the movable frame (201c); a positioning frame (202a) is sleeved on the outer side of the movable frame (201c); the positioning frame (202a) and the movable frame (201c) are hingedly connected; a positioning block (202b) is sleeved on the outer side of the rotating rod (201e); the positioning block (202b) and the rotating rod (201e) are rotatably connected via a rotating shaft; a fixed block (202c) is sleeved on the outer side of the rotating column (201f); the rotating column (201f) and the fixed block (202c) are rotatably connected via a rotating shaft.

3. The plastic mold surface grinding and milling equipment according to claim 2, characterized in that: A first pulley (202d) is fixed to one end of the rotating column (201f), a belt (202e) is sleeved on the outside of the first pulley (202d), a second pulley (202f) is arranged inside the belt (202e), and the second pulley (202f) is fixed to one side of the gear (301a).

4. The plastic mold surface grinding and milling equipment according to claim 2 or 3, characterized in that: The extrusion assembly (300) further comprises a movable part (302) which is arranged on the rack (301b); a slider (302a) is fixed to one side of the rack (301b); a positioning column (302b) is inserted into the top of the slider (302a); the slider (302a) and the positioning column (302b) are movably connected; a spring (302c) is fixed to the bottom of the slider (302a); and the spring (302c) is fixed to the inner wall of the protective frame (201a).

5. The plastic mold surface grinding and milling equipment according to claim 4, characterized in that: A damping block (302d) is fixed on one side of the sliding block (302a), a friction column (302e) is inserted into the top of the damping block (302d), the damping block (302d) and the friction column (302e) are movably connected, and a friction block (302f) is sleeved on the outside of the friction column (302e).

6. The plastic mold surface grinding and milling equipment according to claim 5, characterized in that: A flip plate (302g) is arranged inside the damping block (302d), the flip plate (302g) and the damping block (302d) are hinged, a torsion spring (302h) is fixed on one side of the flip plate (302g), and the torsion spring (302h) is fixed to the inner wall of the damping block (302d).

7. The plastic mold surface grinding and milling equipment according to claim 6, characterized in that: A connecting block (302i) is fixed on the top of the friction column (302e), a supporting frame (302j) is sleeved on the outside of the connecting block (302i), and the supporting frame (302j) is fixed to one side of the protective frame (201a).

8. The plastic mold surface grinding and milling equipment according to claim 6 or 7, characterized in that: It also includes a main body component (100) which is arranged on the protective frame (201a), including a sliding frame (101), a movable seat (104) and a grinding wheel (102); the sliding frame (101) is fixed to the bottom of the protective frame (201a); the grinding wheel (102) is arranged above the sliding frame (101); and the movable seat (104) slides inside the sliding frame (101).

9. The plastic mold surface grinding and milling equipment according to claim 8, characterized in that: A milling machine (103) is provided on one side of the grinding wheel (102).

10. A method for milling the surface of a plastic mold, characterized in that: A surface grinding and milling device as claimed in any one of claims 1 to 9, comprising: First, the plastic mold is stably placed on the top of the moving seat (104). The moving seat (104) is fixed by an electromagnetic chuck. The internal electromagnetic coil is energized to generate a magnetic field, which firmly adsorbs the ferromagnetic plastic mold to achieve stable positioning and ensure that it will not be displaced during the grinding process. Then, the grinding wheel (102) is started, and the grinding operation of the plastic mold is started by moving the grinding wheel (102) to a position where the grinding wheel (102) contacts the top of the plastic mold; During the polishing process, the plastic mold is driven by the power of the moving seat (104) to move stably back and forth in the sliding frame (101), thereby achieving comprehensive polishing of different positions of the mold, ensuring that the entire surface of the mold can be evenly and accurately processed.

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