Plastic part shaping device

Abstract

According to the plastic part shaping device, the lower mold plate is arranged on the rack, the mounting frame is arranged at the movable end of the mechanical arm, the grabbing mechanism and the pressing blocks are all arranged on the mounting frame, and the plastic part is grabbed from an injection molding machine through the grabbing mechanism and placed on the lower mold plate; and the mechanical arm drives the upper mold plate and the lower mold plate to be matched to shape the plastic part. According to the plastic part shaping device, the grabbing mechanism can be driven by the mechanical arm to take out the plastic part from the injection molding machine, then the plastic part is transferred to the lower mold plate through the mechanical arm, and finally the upper mold plate and the lower mold plate are driven by the mechanical arm to be matched to shape the plastic part; the problem that the deformation direction of the cooled part is inconsistent with the assembly deformation direction due to the structural reason of the plastic part and the high injection molding temperature is effectively avoided, then the yield of the plastic part is guaranteed, later assembly is facilitated, and the overall performance of the plastic part is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic part processing, and specifically relates to a plastic part shaping device. BACKGROUND

[0002] In the production process of plastic products, injection molding is a common process method, however, due to the structure of the plastic part and the high injection molding temperature, the deformation direction of the part after cooling is different from the assembly deformation direction, which seriously affects the later assembly and overall performance, therefore, a shaping mold is urgently needed to shape the injection molding machine. SUMMARY

[0003] Therefore, the utility model embodiment provides a plastic part shaping device to solve the problem that the deformation direction of the part after cooling is different from the assembly deformation direction due to the structure of the plastic part and the high injection molding temperature, which seriously affects the later assembly and overall performance.

[0004] To achieve the above-mentioned purpose, the utility model embodiment provides the following technical scheme:

[0005] A plastic part shaping device, comprising: a mechanical arm, an upper mold plate, a lower mold plate, a grabbing mechanism and a rack;

[0006] The lower mold plate is arranged on the rack;

[0007] The upper mold plate comprises a mounting frame and a plurality of pressing blocks;

[0008] The mounting frame is arranged on the movable end of the mechanical arm;

[0009] The grabbing mechanism and the plurality of pressing blocks are arranged on the mounting frame, the grabbing mechanism is used for grabbing the plastic part from the injection molding machine and placing it on the lower mold plate, and the mechanical arm is further used for driving the upper mold plate to cooperate with the lower mold plate to shape the plastic part.

[0010] Preferably, the mechanical arm comprises: a translation mechanism, a mechanical arm and a first telescopic mechanism;

[0011] The first end of the mechanical arm is arranged on the translation mechanism, and the translation mechanism is used for driving the mechanical arm to move in a first direction, wherein the first direction is the arrangement direction of the injection molding machine and the rack;

[0012] The first telescopic mechanism is arranged on the second end of the mechanical arm;

[0013] The mounting frame is rotatably arranged on the extended end of the first telescopic mechanism.

[0014] Preferably, the grabbing mechanism comprises: a vacuum pump and a plurality of suction cups;

[0015] The plurality of suction cups are arranged along the edge of the mounting frame;

[0016] The plurality of suction cups are communicated with the vacuum pump through the connecting pipe.

[0017] Preferably, the mounting frame is connected with the extending end of the first telescopic mechanism through a rotating mechanism.

[0018] Preferably, the rotating mechanism comprises a second telescopic mechanism, a rotating piece, a connecting piece, a first bolt and a second bolt.

[0019] One end of the connecting piece is connected with the extending end of the second telescopic mechanism, and the other end is rotatably connected with one side of the rotating piece through the first bolt.

[0020] The second telescopic mechanism is arranged on the connecting piece, and the extending end of the second telescopic mechanism is rotatably connected with the other side of the rotating piece through the second bolt, and the second telescopic mechanism is used to drive the rotating piece to rotate around the first bolt.

[0021] Preferably, the second telescopic mechanism is a pneumatic cylinder.

[0022] Preferably, the translation mechanism comprises a mounting seat, a motor, a screw rod, a first bearing, a second bearing, a sliding rail and a sliding block.

[0023] The sliding rail is arranged on the mounting seat.

[0024] The sliding block is slidably arranged on the sliding rail, and the sliding block is provided with a screw hole matched with the screw rod.

[0025] The screw rod is arranged on the mounting seat through the first bearing and the second bearing.

[0026] The motor is in transmission connection with the screw rod.

[0027] The first end of the mechanical arm is arranged on the sliding block.

[0028] Preferably, the lower die plate comprises a fixed plate, a pressing switch, a transverse shaping assembly and a longitudinal shaping assembly.

[0029] The transverse shaping assembly and the longitudinal shaping assembly are arranged on the fixed plate, wherein the transverse shaping assembly is used to shape the transverse direction of the plastic part, and the longitudinal shaping assembly is used to shape the longitudinal direction of the plastic part.

[0030] The pressing switch is arranged on the fixed plate, and the pressing switch can control the transverse shaping assembly and the longitudinal shaping assembly to shape the plastic part when the upper die plate is touched downward, and control the transverse shaping assembly and the longitudinal shaping assembly to reset after a preset interval.

[0031] Preferably, the transverse shaping assembly comprises a first push rod, a second push rod, a first shaping block and a second shaping block.

[0032] The fixed plate comprises a first side edge, a second side edge, a third side edge and a fourth side edge, wherein the first side edge and the third side edge are opposite edges.

[0033] The first push rod and the second push rod are arranged at the first side edge and the third side edge of the fixed plate respectively;

[0034] The first shaping block is arranged at the movable end of the first push rod, and the first push rod is used for driving the first shaping block to move towards the second push rod;

[0035] The second shaping block is arranged at the movable end of the second push rod, and the second push rod is used for driving the second shaping block to move towards the first push rod;

[0036] The longitudinal shaping assembly comprises a third push rod, a third shaping block and a positioning block;

[0037] The third push rod and the positioning block are arranged at the second side edge and the fourth side edge respectively;

[0038] The third shaping block is arranged at the movable end of the third push rod, and the third push rod is used for driving the third shaping block to move towards the positioning block.

[0039] Preferably, the device further comprises a conveying belt;

[0040] The gantry is arranged at the feeding end of the conveying belt, and the mechanical arm is further used for placing the shaped plastic part on the conveying belt.

[0041] According to the plastic part shaping device, the lower mold plate is arranged on the gantry, the mounting frame is arranged at the movable end of the mechanical arm, the grabbing mechanism and the plurality of pressing blocks are arranged on the mounting frame, the plastic part is grabbed from the injection molding machine by the grabbing mechanism and placed on the lower mold plate, and the upper mold plate is cooperated with the lower mold plate to shape the plastic part by the mechanical arm. According to the disclosed plastic part shaping device, the plastic part can be taken out from the injection molding machine by the grabbing mechanism driven by the mechanical arm, then transferred to the lower mold plate by the mechanical arm, and finally shaped by the upper mold plate cooperated with the lower mold plate driven by the mechanical arm, so that the problem that the deformation direction of the part after cooling due to the structure of the plastic part and the high injection molding temperature is inconsistent with the assembly deformation direction is avoided, the yield of the plastic part is ensured, the later assembly is facilitated, and the overall performance of the plastic part is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0043] Figure 1 A plastic part shaping device structure schematic view is provided for the embodiments of the present application.

[0044] Figure 2The top view of the plastic part shaping device is provided for the embodiment of the utility model;

[0045] Figure 3 The structure schematic view of the mechanical hand is provided for the embodiment of the utility model;

[0046] Figure 4 The structure schematic view of the upper mold plate is provided for the embodiment of the utility model;

[0047] Figure 5 The structure schematic view of the lower mold plate is provided for the embodiment of the utility model;

[0048] Figure 6 The structure schematic view of the rotating mechanism is provided for the embodiment of the utility model.

[0049] Among them, the mechanical arm 1, the translation mechanism 11, the mechanical arm 12, the first telescopic mechanism 13, the rotating mechanism 14, the second telescopic mechanism 141, the rotating piece 142, the connecting piece 143, the first bolt 144, the second bolt 145, the upper mold plate 2, the mounting frame 21, the pressing block 22, the lower mold plate 3, the fixed plate 31, the pressing switch 32, the first push rod 33, the second push rod 34, the third push rod 35, the first shaping block 36, the second shaping block 37, the third shaping block 38, the positioning block 39, the grabbing mechanism 4, the suction cup 41, the rack 5, the conveying belt 6, the injection molding machine 7. Specific implementation

[0050] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0051] The utility model embodiment provides a kind of plastic part shaping device, referring to Figures 1 to 6 , Figure 1 The structure schematic view of plastic part shaping device, plastic part shaping device includes: mechanical arm 1, upper mold plate 2, lower mold plate 3, grabbing mechanism 4 and rack 5;

[0052] Lower mold plate 3 is set to rack 5;

[0053] Upper mold plate 2 includes mounting frame 21 and multiple pressing blocks 22;

[0054] Mounting frame 21 is set to the movable end of mechanical arm 1;

[0055] The grabbing mechanism 4 and the plurality of pressing blocks 22 are arranged on the mounting rack 21, the grabbing mechanism 4 is used for grabbing the plastic part from the injection molding machine 7 and placing the plastic part on the lower mold plate 3, and the mechanical arm 1 is used for driving the upper mold plate 2 to cooperate with the lower mold plate 3 to shape the plastic part.

[0056] It should be noted that the mechanical arm 1 is used to drive the grabbing mechanism 4 to grab the plastic part from the injection molding machine 7 and place the plastic part on the lower mold plate 3, so that the plastic part can be quickly transferred from the injection molding machine 7 to the lower mold plate 3, and the temperature difference of each part of the injection molding machine 7 can be avoided to cause different deformations.

[0057] It should be noted that the plurality of pressing blocks 22 can be arranged on the mounting rack 21 according to the structure of the plastic part, so that when the upper mold plate 2 moves downward to cooperate with the lower mold plate 3, the plurality of pressing blocks 22 can fix the plastic part on the lower mold plate 3, and the plastic part can be prevented from being deformed due to uneven stress.

[0058] It should be noted that the arrangement of the pressing blocks 22 on the mounting rack 21 can be set as required, that is, the positions where the plastic part is prone to deformation are set.

[0059] In the present application, the pressing blocks 22 can also be in the form of pressing needles, as shown in the figure. Figure 4

[0060] The utility model discloses a lower mold plate 3 is arranged on the rack 5, and the mounting rack 21 is arranged on the movable end of the mechanical arm 1, and the grabbing mechanism 4 and the plurality of pressing blocks 22 are arranged on the mounting rack 21, and the plastic part is placed on the lower mold plate 3 by grabbing the plastic part from the injection molding machine 7 through the grabbing mechanism 4, and the plastic part is shaped by driving the upper mold plate 2 to cooperate with the lower mold plate 3 through the mechanical arm 1. Through the plastic part shaping device disclosed above, the plastic part can be taken out from the injection molding machine 7 by driving the grabbing mechanism 4 through the mechanical arm 1, then transferred to the lower mold plate 3 through the mechanical arm 1, and finally shaped by driving the upper mold plate 2 to cooperate with the lower mold plate 3 through the mechanical arm 1, so that the problem that the deformation direction of the part after cooling due to the structure of the plastic part and the high injection molding temperature is inconsistent with the assembly deformation direction can be avoided, and the good product rate of the plastic part is ensured, the later assembly is facilitated, and the overall performance of the plastic part is effectively improved.

[0061] Specifically, the mechanical arm 1 comprises: a translation mechanism 11, a mechanical arm 12 and a first telescopic mechanism 13.

[0062] The first end of the mechanical arm 12 is arranged on the translation mechanism 11, and the translation mechanism 11 is used for driving the mechanical arm 12 to move in a first direction, wherein the first direction is the arrangement direction of the injection molding machine 7 and the rack 5.

[0063] The first telescopic mechanism 13 is arranged on the second end of the mechanical arm 12.

[0064] ​The mounting rack 21 is rotatably arranged at the extending end of the first telescopic mechanism 13.

[0065] It should be noted that the first end of the mechanical arm 12 is arranged at the translation mechanism 11, and the mechanical arm 12 is driven by the translation mechanism 11 to move the injection molding machine 7 in the first direction. The first telescopic mechanism 13 is arranged at the second end of the mechanical arm 12. The mounting rack 21 is rotatably arranged at the extending end of the first telescopic mechanism 13. After the plastic part is completed by injection molding, the mold of the plastic part is opened. The translation mechanism 11 drives the mechanical arm 12 to move above the injection molding machine 7. Then the first telescopic mechanism 13 drives the grabbing mechanism 4 to descend into the injection molding machine 7. The grabbing mechanism 4 grabs the plastic part. The first telescopic mechanism 13 drives the plastic part to rise. The translation mechanism 11 drives the plastic part to move above the lower mold plate 3. At this time, the first telescopic mechanism 13 drives the plastic part to descend until the plastic part is placed on the lower mold plate 3. Finally, the extending end of the first telescopic mechanism 13 extends, so that the pressing block 22 extrudes the plastic part and cooperates with the lower mold plate 3 to shape the plastic part.

[0066] Preferably, the first telescopic mechanism 13 is a chain telescopic mechanism.

[0067] It should be noted that the first telescopic mechanism 13 can be a chain telescopic mechanism, an air cylinder, or a hydraulic rod (hydraulic cylinder). Those skilled in the art can choose according to the needs. However, in this application, the first telescopic mechanism 13 is preferably a chain telescopic mechanism.

[0068] Further, the grabbing mechanism 4 comprises a vacuum pump and a plurality of suction cups 41.

[0069] The plurality of suction cups 41 are arranged along the edge of the mounting rack 21.

[0070] The plurality of suction cups 41 are in communication with the vacuum pump through a connecting pipe.

[0071] It should be noted that the plurality of suction cups 41 are arranged along the edge of the mounting rack 21. The plurality of suction cups 41 are in communication with the vacuum pump through a connecting pipe. Under the action of the vacuum pump, the suction cups 41 generate negative pressure. The plurality of suction cups 41 contact the plastic part. At this time, the suction cups 41 can be firmly connected with the plastic part, thereby completing the grabbing of the plastic part.

[0072] It should be further noted that the grabbing mechanism 4 can be composed of a vacuum pump and a plurality of suction cups 41, or other types of clamping mechanisms (double fork arm clamping mechanism). Those skilled in the art can choose according to the needs. However, since the plastic part is prone to deformation, the grabbing mechanism 4 of the present application is preferably composed of a vacuum pump and a plurality of suction cups 41.

[0073] Preferably, the mounting rack 21 is made of aluminum.

[0074] It should be noted that the mounting rack 21 can be made of aluminum material, or can be made of other materials, and those skilled in the art can select according to the needs.

[0075] Specifically, the mounting rack 21 is connected with the extension end of the first telescopic mechanism 13 through the rotating mechanism 14.

[0076] It should be noted that the mounting rack 21 is connected with the extension end of the first telescopic mechanism 13 through the rotating mechanism 14, and the plastic part can be flipped according to the needs, thereby realizing clamping of the plastic part in different injection molding machines.

[0077] Specifically, the rotating mechanism 14 comprises: a second telescopic mechanism 141, a rotating part 142, a connecting part 143, a first bolt 144 and a second bolt 145.

[0078] One end of the connecting part 143 is connected with the extension end of the second telescopic mechanism 141, and the other end is rotatably connected with one side of the rotating part 142 through the first bolt 144.

[0079] The second telescopic mechanism 141 is arranged on the connecting part 143, and the extension end of the second telescopic mechanism 141 is rotatably connected with the other side of the rotating part 142 through the second bolt 145, and the second telescopic mechanism 141 is telescopic to drive the rotating part 142 to rotate around the first bolt 144.

[0080] It should be noted that one end of the connecting part 143 is connected with the extension end of the second telescopic mechanism 141, and the other end is rotatably connected with one side of the rotating part 142 through the first bolt 144, and the second telescopic mechanism 141 is arranged on the connecting part 143, and the extension end of the second telescopic mechanism 141 is rotatably connected with the other side of the rotating part 142 through the second bolt 145, thereby driving the rotating part 142 to rotate around the first bolt 144 when the second telescopic mechanism 141 is telescopic, thereby being able to grab the plastic part in a vertical state from the injection molding machine 7, and then driving the rotating part 142 to rotate again through the second telescopic mechanism 141, so that the plastic part is in a horizontal state, and finally placing the plastic part on the lower mold plate 3 for shaping through the cooperation of the translation mechanism 11 and the first telescopic mechanism 13.

[0081] It should be noted that if the plastic part produced by the injection molding machine 7 is in a horizontal state in the mold, the rotating mechanism 14 of the present application is not needed.

[0082] Specifically, the second telescopic mechanism 141 is a gas cylinder.

[0083] It should be noted that the second telescopic mechanism 141 can be a gas cylinder, or can be a hydraulic rod (hydraulic cylinder), and those skilled in the art can select according to the needs, but in the present application, the second telescopic mechanism 141 is preferably a gas cylinder.

[0084] Cylinder refers to the cylindrical metal machine part that guides the piston to make linear reciprocating motion in the cylinder. Air is converted into mechanical energy by expansion in the engine cylinder; gas is compressed by the piston to increase pressure in the compressor cylinder. The cylinder that makes linear reciprocating motion can be divided into four types: single-acting cylinder, double-acting cylinder, diaphragm cylinder and impact cylinder.

[0085] ① Single-acting cylinder: only one end has a piston rod, and the gas pressure generated by supplying gas from one side of the piston produces thrust to extend, relying on spring or self-weight to return.

[0086] ② Double-acting cylinder: alternatingly supply gas from both sides of the piston to output force in one or two directions.

[0087] ③ Diaphragm cylinder: use diaphragm instead of piston, output force in one direction, and use spring to reset. It has good sealing performance, but the stroke is short.

[0088] ④ Impact cylinder: a new type of element. It converts the pressure energy of compressed gas into kinetic energy of high-speed (10-20 m / s) piston motion to do work.

[0089] ⑤ Rodless cylinder: a general term for cylinders without piston rods. There are two main types: magnetic cylinder and cable cylinder.

[0090] Further, the translation mechanism 11 comprises: a mounting seat, a motor, a screw rod, a first bearing, a second bearing, a sliding rail and a sliding block;

[0091] The sliding rail is arranged on the mounting seat;

[0092] The sliding block is slidingly arranged on the sliding rail, and the sliding block is provided with a screw hole matched with the screw rod;

[0093] The screw rod is arranged on the mounting seat through the first bearing and the second bearing;

[0094] The motor is in transmission connection with the screw rod;

[0095] The first end of the mechanical arm 12 is arranged on the sliding block.

[0096] It should be noted that the sliding rail is arranged on the mounting seat, the sliding block is slidingly arranged on the sliding rail, the sliding block is provided with a screw hole matched with the screw rod, the screw rod is arranged on the mounting seat through the first bearing and the second bearing, the motor is in transmission connection with the screw rod, and the first end of the mechanical arm 12 is arranged on the sliding block. Thus, when the motor rotates, the lead screw can be driven to rotate. Since the screw rod is in threaded connection with the sliding block, and the sliding block is slidingly arranged on the sliding rail, the rotation of the screw rod can drive the sliding block to move on the sliding rail. Since the first end of the mechanical arm 12 is arranged on the sliding block, the sliding block can drive the mechanical arm 12 to translate.

[0097] It should be further noted that the sliding rail and the screw rod of the present application are arranged in parallel and along the setting position of the lower mold plate 3 and the injection molding machine 7.

[0098] Specifically, the lower mold plate comprises a fixed plate 31, a pressing switch 32, a transverse shaping assembly and a longitudinal shaping assembly;

[0099] The transverse shaping assembly and the longitudinal shaping assembly are arranged on the fixed plate 31, wherein the transverse shaping assembly is used for transverse shaping of the plastic part, and the longitudinal shaping assembly is used for longitudinal shaping of the plastic part;

[0100] The pressing switch 32 is arranged on the fixed plate 31, and the pressing switch 32 can control the transverse shaping assembly and the longitudinal shaping assembly to shape the plastic part when the upper mold plate 2 is downwardly triggered, and control the transverse shaping assembly and the longitudinal shaping assembly to reset after a preset time interval.

[0101] It should be noted that the pressing switch 32 is arranged on the fixed plate 31, and when the upper mold plate 2 moves downwardly to contact the fixed plate 31, the pressing switch 32 can be triggered, so that the transverse shaping assembly and the longitudinal shaping assembly are started, and at this time, the transverse shaping assembly and the longitudinal shaping assembly shape the plastic part, so that the plastic part is prevented from being deformed.

[0102] It should be further noted that since the pressing switch 32 can control the transverse shaping assembly and the longitudinal shaping assembly to reset after a preset time interval after the transverse shaping assembly and the longitudinal shaping assembly shape the plastic part, the mechanical arm 1 can drive the grabbing mechanism 4 to move the plastic part to other positions, and grab another plastic part from the injection molding machine 7 for next shaping.

[0103] It should be noted that the preset time of the present application is the time required for shaping the plastic part, which needs to be set according to different plastic parts, and can be selected by those skilled in the art as needed, which is not specifically limited in the present application.

[0104] Specifically, the transverse shaping assembly comprises a first push rod 33, a second push rod 34, a first shaping block 36 and a second shaping block 37.

[0105] The fixed plate 31 comprises a first side, a second side, a third side and a fourth side, wherein the first side and the third side are opposite sides;

[0106] The first push rod 33 and the second push rod 34 are arranged on the first side and the third side of the fixed plate 31, respectively;

[0107] The first shaping block 36 is arranged on the movable end of the first push rod 33, and the first push rod 33 is used for driving the first shaping block 36 to move towards the second push rod 34;

[0108] The second shaping block 37 is arranged on the movable end of the second push rod 34, and the second push rod 34 is used for driving the second shaping block 37 to move towards the first push rod 33;

[0109] The longitudinal shaping assembly comprises a third push rod 35, a third shaping block 38 and a positioning block 39;

[0110] The third push rod 35 and the positioning block 39 are respectively arranged at the second side edge and the fourth side edge;

[0111] The third shaping block 38 is arranged at the movable end of the third push rod 35, and the third push rod 35 is used to drive the third shaping block 38 to move towards the positioning block 39.

[0112] It should be noted that since the first push rod 33 and the second push rod 34 are respectively arranged at the first side edge and the third side edge of the fixed plate 31, the first shaping block 36 is arranged at the movable end of the first push rod 33, the second shaping block 37 is arranged at the movable end of the second push rod 34, the third push rod 35 and the positioning block 39 are respectively arranged at the second side edge and the fourth side edge, and the third shaping block 38 is arranged at the movable end of the third push rod 35, the first push rod 33 drives the first shaping block 36 to move towards the second push rod 34, the second push rod 34 drives the second shaping block 37 to move towards the first push rod 33, which can realize the transverse shaping of the plastic part, and the third push rod 35 drives the third shaping block 38 to move towards the positioning block 39, which can realize the longitudinal shaping of the plastic part, and the cooperation of the first push rod 33 and the second push rod 34 can realize the shaping of the periphery, thereby avoiding the deformation of the plastic part.

[0113] In the present application, the shapes of the first shaping block 36, the second shaping block 37, the third shaping block 38 and the positioning block 39 need to be set according to the shape of the plastic part (such as a directional structure, an arc structure, an irregular structure), and a person skilled in the art can select according to the needs.

[0114] Preferably, the fixed plate 31 is made of aluminum.

[0115] It should be noted that the fixed plate 31 can be made of aluminum, or can be made of other materials, and a person skilled in the art can select according to the needs.

[0116] Further, the plastic part shaping device further comprises a conveying belt 6;

[0117] The gantry 5 is arranged at the feeding end of the conveying belt 6, and the mechanical arm 1 is further used to place the shaped plastic part on the conveying belt 5.

[0118] It should be noted that by arranging the conveying belt 6, after the plastic part is shaped, the mechanical arm 1 can place the shaped plastic part on the conveying belt 6, and then the plastic part can be conveyed to the next station for assembly through the conveying belt, thereby effectively improving the conveying efficiency of the plastic part.

[0119] Preferably, the mechanical arm 12 is of a telescopic structure.

[0120] It should be noted that the mechanical arm 12 is arranged as a telescopic structure, so that the mechanical arm 12 can adjust the plastic part gripped by the gripping mechanism 4 according to different plastic parts.

[0121] Preferably, the mechanical arm 12 comprises a motor, a fixed arm, a sliding piece, a screw rod and a guide rod.

[0122] The guide rod is arranged on the fixed arm.

[0123] The sliding piece is slidingly arranged on the guide rod, and the sliding piece is provided with a screw hole matched with the screw rod.

[0124] The motor is in transmission connection with the screw rod.

[0125] It should be noted that the motor drives the screw rod to rotate, the screw rod is in threaded connection with the sliding piece, the sliding piece moves along the guide rod, and the first telescopic mechanism 13 is away from or close to the translation mechanism 11.

[0126] The above-mentioned mechanical hand 1 is controlled by a controller (computer) and the like.

[0127] The above description of the disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A plastic part shaping device, characterized in that, The device comprises a mechanical arm, an upper mold plate, a lower mold plate, a grabbing mechanism and a rack. The lower mold plate is arranged on the rack. The upper mold plate comprises a mounting frame and a plurality of pressing blocks. The mounting frame is arranged on the movable end of the mechanical arm. The grabbing mechanism and the plurality of pressing blocks are arranged on the mounting frame. The grabbing mechanism is used to grab a plastic part from an injection molding machine and place it on the lower mold plate.

2. The plastic part shaping device of claim 1, wherein The mechanical arm is used to drive the upper mold plate to cooperate with the lower mold plate to reshape the plastic part. The mechanical arm comprises a translation mechanism, a mechanical arm and a first telescopic mechanism. The first end of the mechanical arm is arranged on the translation mechanism. The translation mechanism is used to drive the mechanical arm to move in a first direction.

3. The plastic part shaping device of claim 2, wherein The first direction is the arrangement direction of the injection molding machine and the rack. The first telescopic mechanism is arranged on the second end of the mechanical arm. The mounting frame is rotatably arranged on the extended end of the first telescopic mechanism.

4. The plastic part shaping device of claim 2, wherein The grabbing mechanism comprises a vacuum pump and a plurality of suction cups.

5. The plastic part shaping device of claim 4, wherein The plurality of suction cups are arranged along the edge of the mounting frame. The plurality of suction cups are in communication with the vacuum pump through a connecting pipe. The mounting frame is connected to the extended end of the first telescopic mechanism through a rotating mechanism.

6. The plastic part shaping device of claim 5, wherein The rotating mechanism comprises a second telescopic mechanism, a rotating member, a connecting member, a first latch and a second latch.

7. The plastic part shaping device of claim 2, wherein One end of the connecting member is connected to the extended end of the second telescopic mechanism. The other end of the connecting member is rotatably connected to one side of the rotating member through the first latch. The second telescopic mechanism is arranged on the connecting member. The extended end of the second telescopic mechanism is rotatably connected to the other side of the rotating member through the second latch. The second telescopic mechanism is used to drive the rotating member to rotate around the first latch. The second telescopic mechanism is a pneumatic cylinder.

8. The plastic part shaping device of claim 2, wherein, The translation mechanism comprises a mounting seat, a motor, a screw rod, a first bearing, a second bearing, a sliding rail and a sliding block. The sliding rail is arranged on the mounting seat. The sliding block is slidably arranged on the sliding rail.

9. The plastic part shaping device of claim 8, wherein, The sliding block is provided with a screw hole matched with the screw rod. The screw rod is arranged on the mounting seat through the first bearing and the second bearing. The motor is in transmission connection with the screw rod. The first end of the mechanical arm is arranged on the sliding block. The lower mold plate comprises a fixed plate, a pressing switch, a horizontal shaping assembly and a vertical shaping assembly. The horizontal shaping assembly and the vertical shaping assembly are arranged on the fixed plate. The horizontal shaping assembly is used to shape the plastic part in the horizontal direction. The vertical shaping assembly is used to shape the plastic part in the vertical direction. The pressing switch is arranged on the fixed plate. The pressing switch can control the horizontal shaping assembly and the vertical shaping assembly to reshape the plastic part when the upper mold plate is pressed down. The pressing switch can control the horizontal shaping assembly and the vertical shaping assembly to reset after a preset interval. The horizontal shaping assembly comprises a first push rod, a second push rod, a first shaping block and a second shaping block. The fixed plate comprises a first side, a second side, a third side and a fourth side. The first side and the third side are opposite sides. The first push rod and the second push rod are arranged at the first side edge and the third side edge of the fixed plate respectively; The first shaping block is arranged at the movable end of the first push rod, and the first push rod is used to drive the first shaping block to move towards the second push rod; The second shaping block is arranged at the movable end of the second push rod, and the second push rod is used to drive the second shaping block to move towards the first push rod; The longitudinal shaping assembly comprises a third push rod, a third shaping block and a positioning block; The third push rod and the positioning block are arranged at the second side edge and the fourth side edge respectively; The third shaping block is arranged at the movable end of the third push rod, and the third push rod is used to drive the third shaping block to move towards the positioning block.

10. The plastic part shaping device of claim 2, wherein Further comprising: A conveying belt; The gantry is arranged at the feeding end of the conveying belt, and the mechanical arm is further used to place the shaped plastic part on the conveying belt.

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