Automatic mold opening and closing mechanism and using method

Abstract

The invention relates to the technical field of plastic forming, in particular to an automatic mold opening and closing mechanism and a using method.The automatic mold opening and closing mechanism comprises a lower mold body, the inner side surface of the lower mold body is slidably connected with an upper mold body, and a mold opening pouring mechanism is arranged on the outer side surface of the lower mold body; a mold opening vibration mechanism is arranged on the surface of the outer side of the mold opening pouring mechanism, a pop-up trimming mechanism is arranged on the surface of the inner side of the lower mold of the mold, the mold opening pouring mechanism is arranged, a crank structure is driven by a motor to move on a fixed path, the upper mold is driven to ascend firstly and then rotate, and the space above the lower mold can be vacant; the upper mold is turned over, the lower mold is also turned over, the mold opening vibration mechanism is arranged to vibrate the upper mold, so that plastic adhered to the surface of the upper mold due to curing falls off or loosens, and the blade hidden in the upper mold is bounced up through the ejection trimming mechanism to scrape burrs on the surface of the formed plastic.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic molding, and specifically to an automatic mold opening and closing mechanism and a usage method thereof. Background Technique

[0002] Plastic molding is a process of converting liquid or semi-solid plastic into a solid and durable product. This process involves injecting plastic materials into a mold at a specific temperature and pressure, and then hardening it through chemical reactions or physical actions. The process includes steps such as melting, pouring, cooling and solidifying, and cleaning.

[0003] The current plastic molding method is to inject liquid plastic into a mold and then cool and solidify it.

[0004] The existing patent (Patent No.: CN111873340B) includes a lower template and an upper template; a fixing plate is fixedly connected to the bottom end face of the lower template, and the fixing plate is used to fix the device; a placement groove is opened in the inner wall of the lower template, and the placement groove is used to place a mold or a module; on the opposite sides of the placement groove in the inner wall of the lower template, a uniformly arranged top plate is fixedly installed through a telescopic shaft, and the top plates are all electrically connected to a controller through wires. In the above device, the upper mold and the lower mold are opened by linearly moving in the vertical direction. Such an opening method will cause the angle between the lower mold and the upper mold to remain unchanged, that is, the part of the upper mold in contact with the plastic always faces downwards, and the part of the lower mold in contact with the plastic always faces upwards, making it difficult for cleaning or maintenance tools to enter. Moreover, the straight-up-and-down opening method requires a higher rising distance to prevent the upper and lower molds from contacting during cleaning and maintenance, resulting in inconvenient use.

[0005] In view of this, we propose an automatic mold opening and closing mechanism and a usage method thereof. Summary of the Invention

[0006] The purpose of the present invention is to provide an automatic mold opening and closing mechanism and a usage method thereof to solve the problem raised in the above background technique that in the existing mold, the upper mold and the lower mold are opened by linearly moving in the vertical direction. Such an opening method will cause the angle between the lower mold and the upper mold to remain unchanged, that is, the part of the upper mold in contact with the plastic always faces downwards, and the part of the lower mold in contact with the plastic always faces upwards, making it difficult for cleaning or maintenance tools to enter. Moreover, the straight-up-and-down opening method requires a higher rising distance to prevent the upper and lower molds from contacting during cleaning and maintenance, resulting in inconvenient use. To achieve the above purpose, the present invention provides the following technical solution: an automatic mold opening and closing mechanism and a usage method thereof, including a lower mold of the mold, a upper mold of the mold is slidably connected to the inner surface of the lower mold of the mold, an opening and tilting mechanism is arranged on the outer surface of the lower mold of the mold, an opening and vibrating mechanism is arranged on the outer surface of the opening and tilting mechanism, and a pop-up and trimming mechanism is arranged on the inner surface of the lower mold of the mold.

[0007] Preferably, the mold opening and dumping mechanism includes a fixed side plate, the fixed side plate is slidably connected to both sides of the lower mold of the mold, the outer surface of the fixed side plate is provided with a direct-acting groove, the outer surface of the fixed side plate begins to have a rotating groove, the outer surface of the fixed side plate is fixedly connected to a motor, the output end of the motor is fixedly connected to an outer rotating disk, one end of the outer rotating disk is fixedly connected to a turntable connecting shaft, the outer surface of the outer rotating disk is fixedly connected to a toggle rod, the output end of the motor is fixedly connected to an active crank, the outer surface of the active crank is rotatably connected to a driven crank, the outer surface of the driven crank is rotatably connected to an inner moving block, the outer side of the inner moving block The outer surface of the inner moving block is fixedly connected with a direct-acting column, the outer surface of the inner moving block is fixedly connected with a rotating column, the outer surface of the inner moving block is fixedly connected with a moving block connecting rod, the outer surface of the inner moving block is fixedly connected with a bracket mounting arm, the inner surface of the bracket mounting arm is fixedly connected with a bracket mounting bolt, the outer surface of the bracket mounting bolt is fixedly connected with an upper mold connecting arm, one end of the upper mold connecting arm is provided with a connecting groove, the inner surface of the connecting groove is slidably connected with a connecting plug block, both sides of the lower mold of the mold are fixedly connected with lower mold toggle grooves, the bottom surface of the fixed side plate is fixedly connected with a path limiting ring, and the outer surface of the path limiting ring is sleeved with a rotation return spring.

[0008] Preferably, the number of the fixed side plates is two, and the two fixed side plates are symmetrically distributed with the central axis of the lower mold of the mold as the symmetry axis, the direct-acting groove and the rotating groove both pass through the fixed side plate, the rotating groove is arc-shaped, the direct-acting groove is connected to the rotating groove, the number of the outer rotating disks and the toggle rods are both two, and the two outer rotating disks are rotatably connected to the fixed side plates, the turntable connecting shaft passes through the fixed side plate and both ends are fixedly connected to the two outer rotating disks, the radial size of the direct-acting column is consistent with the radial size of the direct-acting groove, the direct-acting column is slidably connected to the inner surface of the direct-acting groove, the radial size of the rotating column is consistent with the radial size of the direct-acting column, the rotating column is slidably connected to the inner surfaces of the direct-acting groove and the rotating groove, and the number of the inner moving blocks is two, The two inner moving blocks are symmetrically distributed with the central axis of the lower mold of the mold as the axis of symmetry, both ends of the moving block connecting rod are fixedly connected to the inner moving blocks, the number of the upper mold connecting arms is two, and the two upper mold connecting arms are symmetrically distributed with the central axis of the lower mold of the mold as the axis of symmetry, the cross-section of the connecting groove is semi-rectangular, and the connecting groove passes through the upper mold connecting arm, the front end of the connecting plug block is cylindrical and the rear end is semi-rectangular, the connecting plug block is slidably connected to the inner surface of the upper mold of the mold, the path limiting ring is a one-third circle ring, the path limiting ring passes through the lower mold toggle groove, and the path limiting ring is slidably connected to the inner surface of the lower mold toggle groove, the rotation return spring is against the bottom surface of the lower mold toggle groove, and the lower mold toggle groove is slidably connected to the toggle rod.

[0009] Preferably, the mold opening vibration mechanism includes a fixed rack, which is fixedly connected to the outer surface of the fixed side plate, vibration mounting grooves are provided on both sides of the upper mold of the mold, the inner surface of the vibration mounting groove is fixedly connected with a plug block connecting bolt, the outer surface of the plug block connecting bolt is sleeved with a plug block vibration spring, the outer surface of the plug block connecting bolt is slidingly connected to the connecting plug block, one end of the connecting plug block is rotatably connected with a driven gear, the outer surface of the driven gear is fixedly connected with a driven cam, and the top surface of the upper mold of the mold is fixedly connected with a driven connecting frame.

[0010] Preferably, the cross-section of the vibration mounting groove is semi-rectangular, the vibration mounting groove is slidingly connected to the outer surface of the connecting block, the number of the block vibration springs on each block connecting bolt is two, and the two block vibration springs are symmetrically distributed with the central axis of the connecting block as the symmetry axis, the block vibration spring is in contact with the outer side of the connecting block and the inner surface of the vibration mounting groove, the driven gear and the driven cam are both rotationally connected to the outer surface of the connecting block, the outer surface of the driven cam is slidingly connected to the bottom surface of the driven connecting frame, the number of the driven connecting frames is two, and the two driven connecting frames are symmetrically distributed with the central axis of the upper mold of the mold as the symmetry axis.

[0011] Preferably, the pop-up trimming mechanism includes an upper mold connecting ring, the upper mold connecting ring is fixedly connected to the outer side surface of the upper mold of the mold, the inner side surface of the lower mold of the mold is provided with a lower mold mounting groove, the inner side surface of the lower mold of the mold is provided with an oblique groove, the inner side surface of the lower mold mounting groove is fixedly connected with a spring mounting column, the outer side surface of the spring mounting column is sleeved with a force storage spring, the outer side surface of the spring mounting column is slidably connected with a direct-acting mounting block, the outer side surface of the direct-acting mounting block is fixedly connected with a mounting block limiting ring, the inner side surface of the direct-acting mounting block is slidably connected with an extrusion block, and the outer side surface of the extrusion block is fixedly connected with an extrusion reset spring. The outer surface of the direct-acting mounting block is bolted with an adjustable pulling shaft, the inner surface of the direct-acting mounting block is slidably connected with a pulling arm, the other end of the pulling arm is hingedly connected to a top dead rotating block, the other end of the top dead rotating block is rotatably connected to the rotating block rotating shaft, the outer surface of the lower die of the mold is fixedly connected to the lower die extrusion shell, the inner surface of the lower die mounting groove is slidably connected to a pop-up base, the outer surface of the pop-up base is fixedly connected to a connecting pin, the top surface of the lower die mounting groove is slidably connected to a tool mounting seat, the bottom surface of the tool mounting seat is provided with a connecting slide groove, and the top surface of the tool mounting seat is fixedly connected to a trimming tool.

[0012] Preferably, the number of the upper die connecting rings is two, and the two upper die connecting rings are symmetrically distributed with respect to the central axis of the upper die of the mold. The number of the inclined slots is four, and the four inclined slots are symmetrically distributed with respect to the central axis of the lower die of the mold. The number of the spring mounting posts is four, and the four spring mounting posts are symmetrically distributed with respect to the central axis of the lower die of the mold. The number of the direct-acting mounting blocks is two, and the two direct-acting mounting blocks are symmetrically distributed with respect to the central axis of the lower die of the mold. Both of the two direct-acting mounting blocks penetrate through the outer surface of the lower die of the mold, and both of the two direct-acting mounting blocks are slidably connected with the lower die mounting grooves. The mounting block limiting ring abuts against the bottom surface of the upper die connecting ring. The outer surface of the extrusion block consists of two inclined planes. The other side surface of the extrusion block is slidably connected with the inner surface of the direct-acting mounting block. The two ends of the extrusion return spring are respectively fixedly connected with the inner surface of the extrusion block and the inner surface of the direct-acting mounting block. The rotating block rotating shaft is fixedly connected with the inner surface of the lower die mounting groove. The number of the lower die extrusion housings is two, and the two lower die extrusion blocks are symmetrically distributed with respect to the central axis of the lower die of the mold. The lower die extrusion housings are slidably connected with the outer surface of the direct-acting mounting blocks. The bottom surface of the dead-stop rotating block is slidably connected with the top surface of the spring-up base. The spring mounting posts penetrate through the spring-up base, and the spring mounting posts are slidably connected with the spring-up base. The number of the connecting pins is four, and the four connecting pins are symmetrically distributed with respect to the central axis of the spring-up base. The number of the tool mounting seats is four, and two of the tool mounting seats are symmetrically distributed with respect to the central axis of the lower die of the mold. The number of the connecting chutes on each tool mounting seat is two, and the two connecting chutes are symmetrically distributed with respect to the central axis of the tool mounting seat. The connecting pins are slidably connected with the connecting chutes. The tool mounting seats are slidably connected with the inner surface of the inclined slots.

[0013] A using method of an automatic mold opening and closing mechanism includes the following steps:

[0014] S1. After cooling is completed, the motor is started to drive the outer rotating disk, the rotating disk connecting shaft and the toggle rod to rotate. The motor is connected to the active crank at one end, and the other end is connected through the rotating disk connecting shaft extended by the motor and finally connected to the outer rotating disk at the other end. The outer rotating disk only rotates, and the motor drives the active cranks on both sides to rotate. The active crank drives the driven crank and the inner moving block connected to it to move. In the initial state, the direct-acting column and the rotating column on the inner moving block are both in the direct-acting groove on the fixed side plate. The two cranks first push the inner moving block upward, which can be regarded as a crank slider mechanism, until the direct-acting column reaches the end of the direct-acting groove. At this time, the two cranks can no longer push the inner moving block upward, and the rotating column is at the connection between the direct-acting groove and the rotating groove. At this time, it can be regarded as two crank rocker mechanisms. When the crank continues to push the inner moving block, the rotating column will move along the rotating groove and drive the inner moving block to rotate with the axial direction of the linear column as the center. The inner moving blocks on both sides are connected by the bracket mounting arm and the moving block connecting rod to ensure synchronous movement and rotation of the two sides. When the inner moving block rotates, the bracket mounting arm is installed with the upper mold connecting arm through the bracket mounting bolt, and the upper mold connecting arm is installed with the connecting plug block through the connecting groove. The connecting plug block is connected to the upper mold of the mold through the plug block connecting bolt on the mold opening vibration mechanism, and the part where the connecting plug block is connected to the connecting groove is a semicircular rectangle and cannot rotate. Therefore, the upper mold connecting arm always remains parallel to the upper mold of the mold, so that the bracket mounting arm will drive the upper mold of the mold to rotate through the upper mold connecting arm during the rotation of the inner moving block, thereby realizing the movement process in which the upper mold of the mold first rises and then flips.

[0015] S2. When the motor drives the outer rotating disk to rotate, it also drives the toggle rod on its surface to rotate. In the initial state, the toggle rod is far away from the lower die toggle groove on the lower die of the mold, but the toggle rod will still follow the rotation and gradually approach the lower die toggle groove until the direct-acting column reaches the end of the direct-acting groove and the toggle rod contacts the lower die toggle groove. At this time, the toggle rod continues to rotate with the outer rotating disk and presses down the lower die toggle groove, driving the lower die toggle groove to slide downward on the path limit ring and compressing the rotation reset spring, thereby driving the lower die of the mold to flip downward. When the motor is reversed, the toggle rod no longer presses down the lower die toggle groove, and the rotation reset spring drives the lower die toggle groove and the lower die of the mold to reset;

[0016] S3. During the process of the upper die of the mold moving, since the upper die of the mold is not directly connected to the connecting insert block, but is installed through the insert block connecting bolt, the connecting insert block is installed inside the vibration installation groove and can slide up and down along the insert block connecting bolt. Since the height position of the connecting insert block follows the upper die connecting arm and the inner moving block and is fixed, while the relative position between the connecting insert block and the upper die of the mold is not fixed, the upper die of the mold can move up and down within a small range by itself during the upward movement of the upper die connecting arm and the inner moving block. During the upward movement of the connecting insert block, the driven gear rotatably connected to the outside thereof meshes with the fixed rack on the fixed side plate, and the driven gear drives the external driven cam to rotate. The driven cam continuously jacks up and releases the driven connection on the upper die of the mold, causing the upper die of the mold to make periodic up and down vibrations;

[0017] S4. The upper die of the mold is clamped on the direct-acting mounting block through the upper die connecting ring and the extrusion block and can be disconnected. The outer surface of the extrusion block is two inclined planes. The top inclined plane contacts the upper die connecting ring. When the upper die of the mold moves downward, the upper die connecting ring enters from the smaller end of the extrusion block, presses the extrusion block into the direct-acting mounting block and compresses the internal extrusion reset spring until it is separated from the top inclined plane of the extrusion block. The extrusion reset spring drives the extrusion block to reset. At this time, the bottom of the upper die connecting ring is placed on the limiting ring of the mounting block and the top is blocked by the bottom of the top inclined plane of the extrusion block, so that the upper die of the mold passes through the upper die. The connecting ring is connected to the direct-acting mounting block. When the upper die of the mold moves upward, it will first drive the direct-acting mounting block to move upward together. At this time, the lower die extrusion shell on the lower die of the mold contacts the bottom inclined plane on the extrusion block. The more the direct-acting mounting block moves upward, the deeper it is pressed by the lower die extrusion shell until it is completely sunk inside. At this time, the upper die connecting ring is no longer restricted by the bottom of the top inclined plane on the extrusion block and falls off from the direct-acting mounting block. The upper die of the mold is not connected to the direct-acting mounting block at this time. The direct-acting mounting block moves in the lower die mounting groove inside the lower die of the mold and extends outward, so that the extrusion block is linked to the external structure. The moving path is limited by the lower die mounting groove and the spring mounting column. The top force storage spring will be squeezed during the upward movement of the direct-acting mounting block. At this time, the pop-up base on the top of the force storage spring is blocked by the top rotating block. The top rotating block is perpendicular to the pop-up base at this time. The upward force of the pop-up base and the collinear angle of the top rotating block are zero. At this time, the force storage spring is blocked by the pop-up base and cannot rise. It can only be compressed and stored. As the direct-acting mounting block continues to rise, the adjustable pulling shaft contacts the pulling arm, and the pulling arm is driven to rise. Because it is hinged, an oblique upward force can be used from the side. Since it is not collinear with the force arm, it can be pulled. Pull the top dead rotating block, and the top dead rotating block rotates outward and no longer blocks the pop-up base. The compressed force of the stored force spring is released, driving the pop-up base to pop up quickly and lift up the top tool mounting seat. The tool mounting seat is slidably connected in the oblique oblique groove. During the rising process, it will also move toward the inside of the lower mold of the mold, driving the trimming tool to quickly eject inward and obliquely upward, and trim and deburr the edge of the mold bonded to the upper mold of the mold. When the upper mold of the mold moves downward, it will be connected to the direct-acting mounting block again through the upper mold connecting ring and contact the mounting block limit ring, pressing it down to restore the entire mechanism.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the present invention, through the setting of the mold opening and dumping mechanism, the motor drives the crank structure to move on a fixed path, driving the upper mold to first rise and then rotate, so that the space above the lower mold can be vacated, and compared with direct rotation, rising first and then rotating can prevent the collision between the upper and lower molds, and after rising to the specified height, the lower mold is also flipped, which is convenient for dumping the residual plastic inside the lower mold, and convenient for cleaning and maintenance of the upper and lower molds before and after use.

[0020] In the present invention, by setting up the mold opening vibration mechanism, during use, when the upper mold is moving, the gear rack drives the cam mechanism to vibrate the upper mold, so that the plastic adhered to the surface due to solidification falls off or loosens, which is convenient for subsequent cleaning.

[0021] In the present invention, by setting up a pop-up trimming mechanism, during use, the upper mold compresses and accumulates force on the internal spring during movement, and releases it when it moves to the required height, so that the blade hidden inside pops up to scrape off the burrs on the surface of the plastic after molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a side view schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the lower mold, the upper mold and the fixed side plate of the mold of the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixed side plate, the motor and the inner moving block of the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the upper mold, the connecting groove and the connecting plug block of the mold of the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixed side plate, the fixed rack and the driven connecting frame of the present invention;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the mold upper mold, the connecting plug block, and the plug block connecting bolts of the present invention;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the lower die, the lower die mounting groove, and the pop-up base of the mold of the present invention;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the top rotating block, the pulling arm and the pop-up base of the present invention;

[0030] Figure 9 It is a schematic diagram of the three-dimensional structure of the direct-acting mounting block, the extrusion block, and the extrusion return spring of the present invention;

[0031] Figure 10 It is a schematic diagram of the three-dimensional structure of the lower mold, the oblique groove and the tool mounting seat of the mold of the present invention.

[0032] In the figure: 1. lower mold; 2. upper mold; 3. mold opening and dumping mechanism; 31. fixed side plate; 32. direct-acting groove; 33. rotating groove; 34. motor; 35. outer rotating disk; 351. rotating disk connecting shaft; 36. toggle rod; 37. active crank; 38. driven crank; 39. inner moving block; 391. direct-acting column; 392. rotating column; 393. moving block connecting rod; 310. bracket mounting arm; 3101. bracket mounting bolt; 311. upper mold connecting arm; 3111. connecting groove; 312. connecting plug; 313. lower mold toggle groove; 314. path limiting ring; 315. rotating reset spring; 4. mold opening vibration mechanism; 41. fixed rack; 42. vibration Mounting slot; 421, plug-in block connecting bolt; 422, plug-in block vibration spring; 43, driven gear; 44, driven cam; 45, driven connecting frame; 5, pop-up trimming mechanism; 51, upper die connecting ring; 52, lower die mounting slot; 521, oblique slot; 53, spring mounting column; 54, storage spring; 55, direct-acting mounting block; 551, mounting block limit ring; 552, extrusion block; 553, extrusion reset spring; 56, adjustable pulling shaft; 57, pulling arm; 58, top rotating block; 59, rotating block rotating shaft; 510, lower die extrusion shell; 511, pop-up base; 5111, connecting pin; 512, tool mounting seat; 5121, connecting slide; 513, trimming tool. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 technical personnel in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 10, the present invention provides a technical solution: an automatic mold opening and closing mechanism and its usage method, including a lower mold 1 of the mold. The inner surface of the lower mold 1 is slidably connected with an upper mold 2 of the mold. The outer surface of the lower mold 1 is provided with an opening and pouring mechanism 3. The outer surface of the opening and pouring mechanism 3 is provided with an opening vibration mechanism 4. The inner surface of the lower mold 1 is provided with a pop-up trimming mechanism 5. The lower mold 1 and the upper mold 2 of the mold jointly form the overall mold part. By injecting liquid plastic to fill the cavity part between the lower mold 1 and the upper mold 2, it is shaped and solidified after cooling and solidification to form a cavity shape. After solidification is completed, the upper mold 2 of the mold is opened to take out the molded plastic. The lower mold 1 and the upper mold 2 of the mold are in contact but not directly connected, and are connected and controlled for flipping and opening / closing through the opening and pouring mechanism 3. When the opening and pouring mechanism 3 controls the opening of the upper mold 2 of the mold, the opening vibration mechanism 4 generates high-frequency vibration to make the plastic adhered to the surface of the upper mold 2 of the mold loose for easy removal. At the same time, the pop-up trimming mechanism 5 extends to trim the burrs on the surface of the molded plastic.

[0035] The mold opening and dumping mechanism 3 includes a fixed side plate 31, which is slidably connected to both sides of the lower mold 1 of the mold, a direct-acting groove 32 is provided on the outer surface of the fixed side plate 31, and a rotating groove 33 is provided on the outer surface of the fixed side plate 31. A motor 34 is fixedly connected to the outer surface of the fixed side plate 31, and an outer rotating disk 35 is fixedly connected to the output end of the motor 34, and a rotating disk connecting shaft 351 is fixedly connected to one end of the outer rotating disk 35. A toggle rod 36 is fixedly connected to the outer surface of the outer rotating disk 35, and an active crank 37 is fixedly connected to the output end of the motor 34. The outer surface of the active crank 37 is rotatably connected to the driven crank 37. The crank 38, the outer surface of the driven crank 38 is rotatably connected to the inner moving block 39, the outer surface of the inner moving block 39 is fixedly connected to the direct-acting column 391, the outer surface of the inner moving block 39 is fixedly connected to the rotating column 392, the outer surface of the inner moving block 39 is fixedly connected to the moving block connecting rod 393, the outer surface of the inner moving block 39 is fixedly connected to the bracket mounting arm 310, the inner surface of the bracket mounting arm 310 is fixedly connected to the bracket mounting bolt 3101, the outer surface of the bracket mounting bolt 3101 is fixedly connected to the upper mold connecting arm 311, and one end of the upper mold connecting arm 311 is provided with a connecting groove 3111. The inner surface of the connecting groove 3111 is slidably connected with a connecting plug 312, the two sides of the lower mold 1 are fixedly connected with the lower mold toggle groove 313, the bottom surface of the fixed side plate 31 is fixedly connected with a path limiting ring 314, and the outer surface of the path limiting ring 314 is sleeved with a rotation return spring 315. During the use of the mold opening and dumping mechanism 3, the active crank 37 and the driven crank 38 are driven by the motor 34 to rotate and move, driving the inner moving block 39 connected thereto to move linearly up and down along the direct-acting groove 32 on the fixed side plate 31 and to rotate along the rotating groove 33. The inner moving blocks 39 on both sides are connected to the shaft 351 through the turntable. It is connected to the bracket mounting arm 310 to achieve synchronous movement. When the inner moving block 39 rotates, it drives the bracket mounting arm 310 to rotate, and drives the upper mold 2 of the mold to move up and down and flip upward through the upper mold connecting arm 311. The outer rotating disk 35 drives the lower mold 1 of the mold to flip downward by toggling the lower mold toggle groove 313 through the toggle rod 36. The initial position of the toggle rod 36 is a certain distance away from the lower mold toggle groove 313, and it needs to be rotated a certain angle to contact, so that the rotation of the lower mold 1 of the mold lags behind the rise of the upper mold 2 of the mold to prevent collision with each other during the rotation process. After the lower mold 1 of the mold is flipped, it is easy to scrape and clean the plastic residue inside.

[0036] The number of the fixed side plates 31 is two, and the two fixed side plates 31 are symmetrically distributed with respect to the central axis of the lower die 1 of the mold. Both the linear motion groove 32 and the rotation groove 33 penetrate through the fixed side plates 31. The rotation groove 33 is arc-shaped, and the linear motion groove 32 is connected to the rotation groove 33. The number of the outer rotation disks 35 and the toggle rods 36 is two, and the two outer rotation disks 35 are rotatably connected to the fixed side plates 31. The rotation disk connecting shaft 351 penetrates through the fixed side plates 31 and is fixedly connected to the two outer rotation disks 35 at both ends. The radial dimension of the linear motion column 391 matches the radial dimension of the linear motion groove 32, and the linear motion column 391 is slidably connected to the inner surface of the linear motion groove 32. The radial dimension of the rotation column 392 matches the radial dimension of the linear motion column 391, and the rotation column 392 is slidably connected to the inner surfaces of both the linear motion groove 32 and the rotation groove 33. The number of the inner moving blocks 39 is two, and the two inner moving blocks 39 are symmetrically distributed with respect to the central axis of the lower die 1 of the mold. Both ends of the moving block connecting rod 393 are fixedly connected to the inner moving blocks 39. The number of the upper die connecting arms 311 is two, and the two upper die connecting arms 311 are symmetrically distributed with respect to the central axis of the lower die 1 of the mold. The cross-section of the connecting groove 3111 is semi-circular rectangular, and the connecting groove 3111 penetrates through the upper die connecting arm 311. The front end of the connecting plug 312 is cylindrical and the rear end is semi-circular rectangular. The connecting plug 312 is slidably connected to the inner surface of the upper die 2 of the mold. The path limiting ring 314 is a one-third circular ring. The path limiting ring 314 penetrates through the lower die toggle groove 313, and the path limiting ring 314 is slidably connected to the inner surface of the lower die toggle groove 313. The rotation return spring 315 abuts against the bottom surface of the lower die toggle groove 313. The lower die toggle groove 313 is slidably connected to the toggle rod 36. The symmetric fixed side plates 31 are provided with inner moving blocks 39 and upper die connecting arms 311 on both sides at the same time for connecting the upper die 2 of the mold, so as to disperse the force. The radial dimensions of the linear motion column 391 and the rotation column 392 and the linear motion groove 32 and the rotation groove 33 are the same, and they can move and rotate arbitrarily inside. The inner moving block 39 realizes the motion path of rising first and then flipping through the different moving paths of the linear motion column 391 and the rotation column 392 in the linear motion groove 32 and the rotation groove 33. The connecting plug 312 is divided into two sections. The front section is cylindrical for installing the driven gear 43 and the driven cam 44 on the mold opening vibration mechanism 4 without affecting their rotation. The rear section is semi-circular rectangular and is inserted into the semi-circular rectangular connecting groove 3111, which can prevent its rotation so that the upper die connecting arm 311 always maintains a constant relative position with the upper die 2 of the mold. The path limiting ring 314 limits the displacement path of the lower die toggle groove 313 and the lower die 1 of the mold, makes it rotate, and a rotation return spring 315 can be installed on its surface for resetting.

[0037] The mold opening vibration mechanism 4 includes a fixed rack 41, which is fixedly connected to the outer surface of the fixed side plate 31. Vibration installation grooves 42 are provided on both sides of the upper mold 2 of the mold. The inner surface of the vibration installation groove 42 is fixedly connected with an insert connection bolt 421. An insert vibration spring 422 is sleeved on the outer surface of the insert connection bolt 421. The outer surface of the insert connection bolt 421 is slidably connected with a connection insert 312. One end of the connection insert 312 is rotatably connected with a driven gear 43. A driven cam 44 is fixedly connected to the outer surface of the driven gear 43. The top surface of the upper mold 2 of the mold is fixedly connected with a driven connection frame 45. In the process of using the mold opening vibration mechanism 4, the upper mold connecting arm 311 is not directly connected to the upper mold 2 of the mold, but is connected through the connection insert 312 and the insert connection bolt 421. The insert connection bolt 421 can slide on the connection insert 312 to drive the upper mold 2 of the mold to slide up and down. When the upper mold connecting arm 311 drives the upper mold 2 of the mold to move upward, the driven gear 43 on the connection insert 312 meshes with the fixed rack 41 on the fixed side plate 31, so as to realize the conversion of linear movement into rotational movement, and drive the driven cam 44 connected to the driven gear 43 to rotate. During the rotation of the driven cam 44, multiple protrusions on the surface will alternately impact the driven connection frame 45 on the top of the upper mold 2 of the mold, causing it to drive the upper mold 2 of the mold to continuously rise and fall, realizing vibration of the upper mold 2 of the mold, so as to facilitate the shedding of the plastic adhered to the upper mold 2 of the mold.

[0038] The cross-section of the vibration installation groove 42 is semi-rectangular. The vibration installation groove 42 is slidably connected with the outer surface of the connection insert 312. The number of the insert vibration springs 422 on each insert connection bolt 421 is two, and the two insert vibration springs 422 are symmetrically distributed with the central axis of the connection insert 312 as the symmetry axis. The insert vibration springs 422 are in contact with both the outer side of the connection insert 312 and the inner surface of the vibration installation groove 42. Both the driven gear 43 and the driven cam 44 are rotatably connected with the outer surface of the connection insert 312. The outer surface of the driven cam 44 is slidably connected with the bottom surface of the driven connection frame 45. The number of the driven connection frames 45 is two, and the two driven connection frames 45 are symmetrically distributed with the central axis of the upper mold 2 of the mold as the symmetry axis. The transverse dimension of the vibration installation groove 42 is the same as that of the connection insert 312, while the longitudinal dimension is lengthened, so that the connection insert 312 can move vertically in the vibration installation groove 42. The upper and lower insert vibration springs 422 enable the connection insert 312 to be in the central position and have enough space when moving up and down. The symmetrically arranged driven connection frames 45 and driven cams 44 vibrate simultaneously on both sides, increasing the strength and dispersing the force.

[0039] The pop-up trimming mechanism 5 includes an upper die connecting ring 51, which is fixedly connected to the outer surface of the upper die 2 of the die, a lower die mounting groove 52 is provided on the inner surface of the lower die 1 of the die, an oblique groove 521 is provided on the inner surface of the lower die mounting groove 52, a spring mounting column 53 is fixedly connected to the inner surface of the lower die mounting groove 52, a force storage spring 54 is sleeved on the outer surface of the spring mounting column 53, a direct-acting mounting block 55 is slidably connected to the outer surface of the spring mounting column 53, a mounting block limiting ring 551 is fixedly connected to the outer surface of the direct-acting mounting block 55, an extrusion block 552 is slidably connected to the inner surface of the direct-acting mounting block 55, an extrusion reset spring 553 is fixedly connected to the outer surface of the extrusion block 552, and the outer surface of the direct-acting mounting block 55 is fixedly connected to the outer surface of the extrusion block 552. An adjustable pulling shaft 56 is bolted, a pulling arm 57 is slidably connected to the inner surface of the direct-acting mounting block 55, the other end of the pulling arm 57 is hingedly connected to a top-dead rotating block 58, the other end of the top-dead rotating block 58 is rotatably connected to a rotating block rotating shaft 59, the outer surface of the lower die 1 of the mold is fixedly connected to a lower die extrusion shell 510, the inner surface of the lower die mounting groove 52 is slidably connected to a pop-up base 511, the outer surface of the pop-up base 511 is fixedly connected to a connecting pin 5111, the top surface of the lower die mounting groove 52 is slidably connected to a tool mounting seat 512, the bottom surface of the tool mounting seat 512 is provided with a connecting slide groove 5121, the top surface of the tool mounting seat 512 is fixedly connected to a trimming tool 513, and a trimming mechanism 5 is popped out. When the upper die 2 of the mold is in use, it is stuck on the direct-acting mounting block 55 through the upper die connecting ring 51 and the extrusion block 552 and can be disconnected. When the upper die 2 of the mold is pressed down, the extrusion block 552 with an inclined plane surface is pressed into and connected to it by the reset action of the extrusion reset spring 553. When the upper die 2 of the mold rises, the direct-acting mounting block 55 is pulled up, and after moving for a period of time, it is disconnected under the pressing and reset action of the extrusion block 552 and the lower die extrusion shell 510, so as to prevent the pop-up trimming mechanism 5 from moving further upward, resulting in too many top parts affecting subsequent use. During the upward movement of the direct-acting mounting block 55, the force storage spring 54 will be compressed with the pop-up base 511. In the initial state, the pop-up base 511 will pass the rotation point of the dead rotating block 58 due to the upward movement. The movable base 511 is locked until the adjustable pulling shaft 56 on the linear mounting block 55 uses the pulling arm 57 to pull the locking rotating block 58 away from the side and no longer locks the pop-up base 511. The force storage spring 54 releases the pressure to push the pop-up base 511 upward. The pulling arm 57 does not slide in the linear mounting block 55 before contacting the adjustable pulling shaft 56. The adjustable pulling shaft 56 is connected to the linear mounting block 55 by bolts to change the height to adjust the time of triggering the locking rotating block 58 to adapt to different mold depths. The pop-up base 511 ejects and lifts the top tool mounting seat 512. The tool mounting seat 512 moves inward along the oblique groove 521 at the same time during the lifting process, driving the trimming tool 513 to cut the burrs of the molded plastic after cooling.The pop-up base 511 is connected to the connecting chute 5121 on the tool mounting seat 512 through a connecting pin 5111. The connecting pin 5111 can slide within the connecting chute 5121 to adapt to the lateral movement of the tool mounting seat 512. In this way, when the pop-up base 511 is reset, it will pull the tool mounting seat 512 to reset and be received inside the lower die 1 of the mold. The ejection trigger of the trimming mechanism 5 is controlled by an adjustable pulling shaft 56. When the adjustable pulling shaft 56 is moved downward, the trigger time becomes longer. When it is at the bottom, the trigger time exceeds the time when the upper die connecting ring 51 is separated from the direct-acting mounting block 55, then the ejection part will not be triggered, facilitating operations such as cleaning and inspection when the lower die 1 of the mold is separated from the upper die 2 of the mold.

[0040] There are two upper die connecting rings 51, and the two upper die connecting rings 51 are symmetrically distributed with respect to the central axis of the upper die 2 of the mold. The number of inclined slots 521 is four, and the four inclined slots 521 are symmetrically distributed with respect to the central axis of the lower die 1 of the mold. The number of spring mounting posts 53 is four, and the four spring mounting posts 53 are symmetrically distributed with respect to the central axis of the lower die 1 of the mold. The number of direct-acting mounting blocks 55 is two, and the two direct-acting mounting blocks 55 are symmetrically distributed with respect to the central axis of the lower die 1 of the mold. And the two direct-acting mounting blocks 55 both penetrate to the outer surface of the lower die 1 of the mold, and the two direct-acting mounting blocks 55 are both slidably connected to the lower die mounting groove 52. The mounting block limiting ring 551 abuts against the bottom surface of the upper die connecting ring 51. The outer surface of the extrusion block 552 is composed of two inclined planes. The other side surface of the extrusion block 552 is slidably connected to the inner surface of the direct-acting mounting block 55. The two ends of the extrusion return spring 553 are respectively fixedly connected to the inner surface of the extrusion block 552 and the inner surface of the direct-acting mounting block 55. The rotating block rotating shaft 59 is fixedly connected to the inner surface of the lower die mounting groove 52. The number of lower die extrusion housings 510 is two, and the two lower die extrusion blocks 552 are symmetrically distributed with respect to the central axis of the lower die 1 of the mold. The lower die extrusion housing 510 is slidably connected to the outer surface of the direct-acting mounting block 55. The bottom surface of the dead-stop rotating block 58 is slidably connected to the top surface of the spring-up base 511. The spring mounting post 53 penetrates through the spring-up base 511, and the spring mounting post 53 is slidably connected to the spring-up base 511. The number of connecting pins 5111 is four, and the four connecting pins 5111 are symmetrically distributed with respect to the central axis of the spring-up base 511. The number of tool mounting seats 512 is four, and two tool mounting seats 512 are symmetrically distributed with respect to the central axis of the lower die 1 of the mold. The number of connecting chutes 5121 on each tool mounting seat 512 is two, and the two connecting chutes 5121 are symmetrically distributed with respect to the central axis of the tool mounting seat 512. The connecting pin 5111 is slidably connected to the connecting chute 5121. The tool mounting seat 512 is slidably connected to the inner surface of the inclined slot 521. The spring mounting post 53 limits the movement paths of the direct-acting mounting block 55 and the spring-up base 511 while mounting the energy storage spring 54 to prevent the position from shifting. The direct-acting mounting block 55 slides in the lower die mounting groove 52 and partially extends the extrusion block 552. The two inclined planes of the extrusion block 552 respectively control connection, locking and separation. The spring-up base 511 is connected to the connecting chute 5121 on the tool mounting seat 512 through the connecting pin 5111. The connecting pin 5111 can slide in the connecting chute 5121 to adapt to the lateral movement of the tool mounting seat 512.

[0041] In this embodiment, as Figure 1As shown, the fixed side plates 31 are installed on both sides of the upper die 2 and the lower die 1 of the mold. The upper die 2 and the lower die 1 of the mold are in contact but not directly connected, and are connected by the mold opening and pouring mechanism 3. The direct-acting mounting block 55 slides in the lower die mounting groove 52 and partially extends the extrusion block 552. The driven gear 43 meshes with the fixed rack 41 on the fixed side plate 31;

[0042] In this embodiment, as Figure 2 shown, the external outer rotating disk 35 and the internal active crank 37 are driven to rotate by the motor 34. The direct-acting groove 32 and the rotating groove 33 intersect. The inner moving block 39 is connected to the direct-acting groove 32 on the fixed side plate 31 through the direct-acting column 391 and the rotating column 392. At this time, the inner moving block 39 is in the bottom initial position, and the upper die 2 and the lower die 1 of the mold are closed. The position of the toggle lever 36 is at a certain distance from the lower die toggle groove 313. At this time, the rotation will not contact the lower die toggle groove 313. The path limiting ring 314 is a one-third circular ring, and the path limiting ring 314 penetrates the lower die toggle groove 313;

[0043] In this embodiment, as Figure 3 shown, the inner moving blocks 39 are symmetrically distributed and are connected to the support mounting arm 310 through the moving block connecting rod 393. The driven crank 38 is rotatably connected to the inner moving block 39 but is penetrated by the moving block connecting rod 393. At this time, the inner moving block 39 moves to the top, the direct-acting column 391 reaches the end of the direct-acting groove 32, and at the same time, the rotating column 392 is at the connection of the direct-acting groove 32 and the rotating groove 33. The upper die connecting arm 311 rises to the top but does not rotate, and at this time, the toggle lever 36 contacts the lower die toggle groove 313;

[0044] In this embodiment, as Figure 4 shown, the connecting groove 3111 opened on the upper die connecting arm 311 is semi-circular rectangular. The front end of the connecting plug 312 is cylindrical and the rear end is semi-circular rectangular. The vibration mounting groove 42 is also semi-circular rectangular, with the same transverse dimension as the connecting plug 312 and a longer longitudinal dimension. At this time, the motor 34 continues to rotate the active crank 37 to push the driven crank 38. The rotating column 392 cannot be pushed upward, so it is pushed from the side to rotate, and drives the inner moving block 39 to rotate to realize the upward flipping and opening of the upper die 2 of the mold. At the same time, the toggle lever 36 at the bottom presses down the lower die toggle groove 313, and the lower die 1 of the mold also flips downward;

[0045] In this embodiment, as Figure 5 shown, the upper die connecting arm 311 is fixedly connected to the support mounting arm 310 through the support mounting bolt 3101. The driven gear 43 meshes with the fixed rack 41 on the fixed side plate 31. The driven connecting frames 45 are symmetrically distributed on the upper die 2 of the mold;

[0046] In this embodiment, as Figure 6As shown, the upper mold connecting arm 311 is not directly connected to the mold upper mold 2 but is connected through the connecting plug block 312 and the plug block connecting bolt 421. The plug block connecting bolt 421 can slide on the connecting plug block 312 to drive the mold upper mold 2 to slide up and down. The transverse dimension of the vibration installation groove 42 is the same as that of the connecting plug block 312, but the longitudinal dimension is lengthened, so that the connecting plug block 312 can move vertically in the vibration installation groove 42.

[0047] In this embodiment, Figure 7 As shown, a lower die mounting groove 52 is provided on the inner surface of the lower die 1 of the mold, the direct-acting mounting block 55 slides in the lower die mounting groove 52 and partially extends the extrusion block 552, and the spring mounting column 53 penetrates the direct-acting mounting block 55 and the pop-up base 511;

[0048] In this embodiment, Figure 8 As shown, the direct-acting mounting block 55 will compress the force storage spring 54 with the pop-up base 511 during the upward movement. In the initial state, the pop-up base 511 will pass the rotation point of the top-locking rotating block 58 due to the upward movement, resulting in being stuck, until the adjustable pulling shaft 56 on the direct-acting mounting block 55 pulls the top-locking rotating block 58 away from the side and no longer sticks to the pop-up base 511, and the force storage spring 54 releases the pressure to push the pop-up base 511 to move upward;

[0049] In this embodiment, Figure 9 As shown, the upper die 2 of the mold is clamped on the direct-acting mounting block 55 through the upper die connecting ring 51 and the extrusion block 552 and can be disconnected. The extrusion block 552 is installed on the inner surface of the direct-acting mounting block 55 and is pressed in and reset by extruding the reset spring 553;

[0050] In this embodiment, Figure 10 As shown, the pop-up base 511 ejects and lifts the top tool mounting seat 512, and the tool mounting seat 512 moves inward along the oblique groove 521 during the lifting process. The pop-up base 511 is connected to the connecting groove 5121 on the tool mounting seat 512 through the connecting pin 5111, and the connecting pin 5111 can slide in the connecting groove 5121 to adapt to the lateral movement of the tool mounting seat 512.

[0051] A method for using an automatic mold opening and closing mechanism comprises the following steps:

[0052] S1. After cooling is completed, the motor 34 is started to drive the outer rotating disk 35, the rotating disk connecting shaft 351 and the toggle rod 36 to rotate. The motor 34 is connected to the active crank 37 at one end, and the other end is connected to the rotating disk connecting shaft 351 extended by the motor 34 and finally connected to the outer rotating disk 35 at the other end. The outer rotating disk 35 only rotates, and the motor 34 drives the active cranks 37 on both sides to rotate. The active crank 37 drives the driven crank 38 and the inner moving block 39 connected thereto to move. In the initial state, the direct-acting column 391 and the rotating column 392 on the inner moving block 39 are both in the direct-acting groove 32 on the fixed side plate 31. The two cranks first push the inner moving block 39 to move upward, which can be regarded as a crank slider mechanism, until the direct-acting column 391 reaches the end of the direct-acting groove 32. At this time, the two cranks can no longer push the inner moving block 39 upward, and the rotating column 392 is at the connection between the direct-acting groove 32 and the rotating groove 33. At this time, it can be regarded as a crank rocker mechanism. The two cranks continue to push When the inner moving block 39 moves, the rotating column 392 will move along the rotating groove 33 and drive the inner moving block 39 to rotate with the axial direction of the direct moving column 391 as the center. The inner moving blocks 39 on both sides are connected by the bracket mounting arm 310 and the moving block connecting rod 393 to ensure synchronous movement and rotation of the two sides. When the inner moving block 39 rotates, the bracket mounting arm 310 is installed with the upper mold connecting arm 311 through the bracket mounting bolt 3101, and the upper mold connecting arm 311 is installed with the connecting plug 312 through the connecting groove 3111. The connecting plug 312 is connected to the upper mold 2 of the mold through the plug connecting bolt 421 on the mold opening vibration mechanism 4, and the part where the connecting plug 312 is connected to the connecting groove 3111 is a semicircular rectangle and cannot rotate. Then the upper mold connecting arm 311 always remains parallel to the upper mold 2 of the mold, so that the bracket mounting arm 310 will drive the upper mold 2 of the mold to rotate through the upper mold connecting arm 311 during the rotation of the inner moving block 39, thereby realizing the movement process in which the upper mold 2 of the mold first rises and then flips.

[0053] S2, the process of the motor 34 driving the outer rotating disk 35 to rotate will also drive the toggle rod 36 on its surface to rotate. In the initial state, the toggle rod 36 is away from the lower mold toggle groove 313 on the lower mold 1 of the mold, but the toggle rod 36 will still follow the rotation and gradually approach the lower mold toggle groove 313 until the direct-acting column 391 reaches the end of the direct-acting groove 32, and the toggle rod 36 contacts the lower mold toggle groove 313. At this time, the toggle rod 36 continues to follow the rotation of the outer rotating disk 35 and presses down the lower mold toggle groove 313, driving the lower mold toggle groove 313 to slide downward on the path limit ring 314 and compress the rotation return spring 315, thereby driving the lower mold 1 of the mold to flip downward. When the motor 34 is reversed, the toggle rod 36 no longer presses down the lower mold toggle groove 313, and the rotation return spring 315 drives the lower mold toggle groove 313 and the lower mold 1 of the mold to reset;

[0054] S3. During the movement of the upper die 2 of the mold, since the upper die 2 of the mold is not directly connected to the connecting insert block 312, but is installed through the insert block connecting bolt 421, the connecting insert block 312 is installed inside the vibration installation groove 42 and can slide up and down along the insert block connecting bolt 421. Since the height position of the connecting insert block 312 follows the upper die connecting arm 311 and the inner moving block 39, and the relative position between the connecting insert block 312 and the upper die 2 of the mold is not fixed, the upper die 2 of the mold can move up and down within a small range by itself during the upward movement of the upper die connecting arm 311 and the inner moving block 39. During the upward movement of the connecting insert block 312, the driven gear 43 rotatably connected to the outside thereof meshes with the fixed rack 41 on the fixed side plate 31, and the driven gear 43 drives the external driven cam 44 to rotate. The driven cam 44 continuously jacks up and releases the driven connection on the upper die 2 of the mold, causing the upper die 2 of the mold to perform periodic up and down vibrations. The insert vibration springs 422 are distributed between the insert block connecting bolt 421 and the vibration installation groove 42, making the vibration curve smoother;

[0055] S4, the upper die 2 of the mold is clamped on the direct-acting mounting block 55 through the upper die connecting ring 51 and the extrusion block 552 and can be disconnected. The outer surface of the extrusion block 552 is two inclined planes, and the top inclined plane contacts the upper die connecting ring 51. When the upper die 2 of the mold moves downward, the upper die connecting ring 51 enters from the smaller end of the extrusion block 552, presses the extrusion block 552 into the direct-acting mounting block 55 and compresses the internal extrusion reset spring 553 until it is separated from the top inclined plane of the extrusion block 552. The extrusion reset spring 553 drives the extrusion block 552 to reset. At this time, the bottom of the upper die connecting ring 51 is placed on the mounting block limit ring 551 and the top is blocked by the bottom of the top inclined plane of the extrusion block 552, so that the upper die 2 of the mold The mold 2 is connected to the direct-acting mounting block 55 through the upper mold connecting ring 51. When the upper mold 2 of the mold moves upward, it will first drive the direct-acting mounting block 55 to move upward together. At this time, the lower mold extrusion shell 510 on the lower mold 1 of the mold contacts the bottom inclined plane on the extrusion block 552. The more the direct-acting mounting block 55 moves upward, the deeper it is pressed by the lower mold extrusion shell 510 until it is completely sunk into the interior. At this time, the upper mold connecting ring 51 is no longer restricted by the bottom of the top inclined plane on the extrusion block 552 and falls off from the direct-acting mounting block 55. The upper mold 2 of the mold is not connected to the direct-acting mounting block 55 at this time. The direct-acting mounting block 55 moves in the lower mold mounting groove 52 inside the lower mold 1 of the mold and extends outward, so that the extrusion block 552 is linked with the external structure, and the direct-acting The moving path of the mounting block 55 is limited by the lower die mounting groove 52 and the spring mounting column 53. The top force storage spring 54 will be squeezed during the upward movement of the direct-acting mounting block 55. At this time, the pop-up base 511 on the top of the force storage spring 54 is blocked by the locking rotating block 58. The locking rotating block 58 is perpendicular to the pop-up base 511 at this time. The upward force of the pop-up base 511 and the locking rotating block 58 are colinear at an angle of zero. At this time, the force storage spring 54 is blocked by the pop-up base 511 and cannot rise. It can only be compressed and stored. As the direct-acting mounting block 55 continues to rise, the adjustable pulling shaft 56 contacts the pulling arm 57, and the pulling arm 57 is driven to rise. Since it is hinged, an oblique upward force can be used from the side. Since it is not in contact with the force arm The collinearity can pull the top dead rotating block 58, and the top dead rotating block 58 rotates outward and no longer blocks the pop-up base 511. The compressed force of the storage spring 54 is released, driving the pop-up base 511 to pop up quickly and lift the top tool mounting seat 512. The tool mounting seat 512 is slidably connected in the oblique oblique groove 521, and during the rising process, it will move toward the inside of the lower mold 1 of the mold, driving the trimming tool 513 to quickly eject inward and obliquely upward, and trim and deburr the edge of the mold bonded to the upper mold 2 of the mold. When the upper mold 2 of the mold moves downward, it will be connected to the direct-acting mounting block 55 again through the upper mold connecting ring 51 and contact the mounting block limit ring 551, pressing it down to restore the entire mechanism.

[0056] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present invention, which are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An automatic mold opening and closing mechanism, comprising a mold lower mold (1), characterized in that: The inner surface of the mold lower mold (1) is slidably connected to the mold upper mold (2), the outer surface of the mold lower mold (1) is provided with a mold opening and dumping mechanism (3), the outer surface of the mold opening and dumping mechanism (3) is provided with a mold opening vibration mechanism (4), and the inner surface of the mold lower mold (1) is provided with a pop-up trimming mechanism (5); The mold opening and dumping mechanism (3) comprises a fixed side plate (31), the fixed side plate (31) is slidably connected to both sides of the mold lower mold (1), the outer surface of the fixed side plate (31) is provided with a direct motion groove (32), the outer surface of the fixed side plate (31) begins to have a rotation groove (33), the outer surface of the fixed side plate (31) is fixedly connected to a motor (34), the output end of the motor (34) is fixedly connected to an outer rotating disk (35), the outer surface of the outer rotating disk (35) is fixedly connected to a toggle rod (36), one end of the outer rotating disk (35) is fixedly connected to a rotating disk connecting shaft (351), the output end of the motor (34) is fixedly connected to an active crank (37), the outer surface of the active crank (37) is rotationally connected to a driven crank (38), the outer surface of the driven crank (38) is rotationally connected to an inner moving block (39), the outer surface of the inner moving block (39) is fixedly connected to a direct motion groove (32), and the outer surface of the inner moving block (39) is rotationally connected to a driven crank (38). The outer surface of the inner moving block (39) is fixedly connected to a rotating column (392), the outer surface of the inner moving block (39) is fixedly connected to a moving block connecting rod (393), the outer surface of the inner moving block (39) is fixedly connected to a bracket mounting arm (310), the inner surface of the bracket mounting arm (310) is fixedly connected to a bracket mounting bolt (3101), and the outer surface of the bracket mounting bolt (3101) is fixedly connected to an upper A mold connecting arm (311), one end of the upper mold connecting arm (311) is provided with a connecting groove (3111), the inner surface of the connecting groove (3111) is slidably connected with a connecting plug (312), both sides of the mold lower mold (1) are fixedly connected with lower mold toggle grooves (313), the bottom surface of the fixed side plate (31) is fixedly connected with a path limiting ring (314), and the outer surface of the path limiting ring (314) is sleeved with a rotation return spring (315).

2. The automatic mold opening and closing mechanism according to claim 1, characterized in that: The number of the fixed side plates (31) is two, and the two fixed side plates (31) are symmetrically distributed with the central axis of the lower mold (1) of the mold as the symmetry axis, the direct-acting groove (32) and the rotating groove (33) both penetrate the fixed side plate (31), the rotating groove (33) is arc-shaped, the direct-acting groove (32) and the rotating groove (33) are connected, the number of the outer rotating disk (35) and the toggle rod (36) are both two, and the two outer rotating disks (35) are rotatably connected to the fixed side plate (31), and the rotating disk connecting shaft (351) penetrates The fixed side plate (31) is passed through and both ends are fixedly connected to the two outer rotating disks (35); the radial dimension of the direct-acting column (391) matches the radial dimension of the direct-acting groove (32); the direct-acting column (391) is slidably connected to the inner surface of the direct-acting groove (32); the radial dimension of the rotating column (392) matches the radial dimension of the direct-acting column (391); the rotating column (392) is slidably connected to the inner surfaces of the direct-acting groove (32) and the rotating groove (33); the number of the inner moving blocks (39) is two, The two inner moving blocks (39) are symmetrically distributed with the central axis of the mold lower mold (1) as the symmetry axis, both ends of the moving block connecting rod (393) are fixedly connected to the inner moving block (39), the number of the upper mold connecting arms (311) is two, and the two upper mold connecting arms (311) are symmetrically distributed with the central axis of the mold lower mold (1) as the symmetry axis, the cross-section of the connecting groove (3111) is semi-circular and rectangular, and the connecting groove (3111) passes through the upper mold connecting arm (311), and the front end of the connecting plug block (312) is round. The rear end of the column is in a semicircular rectangular shape, the connecting plug (312) is slidably connected to the inner surface of the upper mold (2) of the mold, the path limiting ring (314) is a third of a circle, the path limiting ring (314) passes through the lower mold toggle groove (313), and the rotating path limiting ring (314) is slidably connected to the inner surface of the lower mold toggle groove (313), the rotating return spring (315) is against the bottom surface of the lower mold toggle groove (313), and the lower mold toggle groove (313) is slidably connected to the toggle rod (36).

3. The automatic mold opening and closing mechanism according to claim 1, characterized in that: The mold opening vibration mechanism (4) comprises a fixed rack (41), the fixed rack (41) is fixedly connected to the outer surface of the fixed side plate (31), the two sides of the mold upper mold (2) are provided with vibration installation grooves (42), the inner surface of the vibration installation groove (42) is fixedly connected with an insert block connecting bolt (421), the outer surface of the insert block connecting bolt (421) is sleeved with an insert block vibration spring (422), the outer surface of the insert block connecting bolt (421) is slidably connected to the connecting insert block (312), one end of the connecting insert block (312) is rotatably connected with a driven gear (43), the outer surface of the driven gear (43) is fixedly connected with a driven cam (44), and the top surface of the mold upper mold (2) is fixedly connected with a driven connecting frame (45).

4. The automatic mold opening and closing mechanism according to claim 3, characterized in that: The cross section of the vibration installation groove (42) is semi-circular and rectangular. The vibration installation groove (42) is slidably connected to the outer surface of the connecting plug (312). The number of the plug vibration springs (422) on each plug connection bolt (421) is two, and the two plug vibration springs (422) are symmetrically distributed with the central axis of the connecting plug (312) as the symmetry axis. The plug vibration springs (422) are in contact with the outer side of the connecting plug (312) and the inner side of the vibration installation groove (42). The driven gear (43) and the driven cam (44) are both rotatably connected to the outer side surface of the connecting plug (312). The outer side surface of the driven cam (44) is slidably connected to the bottom surface of the driven connecting frame (45). The number of the driven connecting frames (45) is two, and the two driven connecting frames (45) are symmetrically distributed with the central axis of the upper mold (2) of the mold as the symmetry axis.

5. The automatic mold opening and closing mechanism according to claim 1, characterized in that: The pop-up trimming mechanism (5) comprises an upper die connecting ring (51), the upper die connecting ring (51) is fixedly connected to the outer surface of the upper die (2) of the die, the inner surface of the lower die (1) of the die is provided with a lower die mounting groove (52), the inner surface of the lower die (1) of the die is provided with an oblique groove (521), the inner surface of the lower die mounting groove (52) is fixedly connected with a spring mounting column (53), the outer surface of the spring mounting column (53) is sleeved with a force storage spring (54), the outer surface of the spring mounting column (53) is slidably connected with a direct-acting mounting block (55), the outer surface of the direct-acting mounting block (55) is fixedly connected with a mounting block limiting ring (551), the inner surface of the direct-acting mounting block (55) is slidably connected with an extrusion block (552), the outer surface of the extrusion block (552) is fixedly connected with an extrusion reset spring (553), the direct-acting mounting block ( The outer surface of the direct-acting mounting block (55) is bolted with an adjustable pulling shaft (56), the inner surface of the direct-acting mounting block (55) is slidably connected with a pulling arm (57), the other end of the pulling arm (57) is hingedly connected with a top-dead rotating block (58), the other end of the top-dead rotating block (58) is rotatably connected with a rotating block rotating shaft (59), the outer surface of the mold lower mold (1) is fixedly connected with a lower mold extrusion shell (510), the inner surface of the lower mold mounting groove (52) is slidably connected with a pop-up base (511), the outer surface of the pop-up base (511) is fixedly connected with a connecting pin (5111), the top surface of the lower mold mounting groove (52) is slidably connected with a tool mounting seat (512), the bottom surface of the tool mounting seat (512) is provided with a connecting slide groove (5121), and the top surface of the tool mounting seat (512) is fixedly connected with a trimming tool (513).

6. The automatic mold opening and closing mechanism according to claim 5, characterized in that: The number of the upper die connecting rings (51) is two, and the two upper die connecting rings (51) are symmetrically distributed with the central axis of the upper die (2) of the die as the axis of symmetry, the number of the oblique grooves (521) is four, and the four oblique grooves (521) are symmetrically distributed with the central axis of the lower die (1) of the die as the axis of symmetry, the number of the spring mounting columns (53) is four, and the four spring mounting columns (53) are symmetrically distributed with the central axis of the lower die (1) of the die as the axis of symmetry, the number of the direct-acting mounting blocks (55) is two, and the two direct-acting mounting blocks (55) are symmetrically distributed with the central axis of the lower die (1) of the die as the axis of symmetry, and the two direct-acting mounting blocks (55) both penetrate to the outer surface of the lower die (1) of the mold, and the two direct-acting mounting blocks (55) are slidably connected to the lower die mounting groove (52), the mounting block limit ring (551) is against the bottom surface of the upper die connecting ring (51), the outer surface of the extrusion block (552) is composed of two sections of inclined planes, the other side surface of the extrusion block (552) is slidably connected to the inner surface of the direct-acting mounting block (55), the two ends of the extrusion return spring (553) are respectively fixedly connected to the inner surface of the extrusion block (552) and the inner surface of the direct-acting mounting block (55), the rotating block rotating shaft (59) is connected to the lower die mounting groove The inner surface of the lower die extrusion shell (510) is fixedly connected, the number of the lower die extrusion shells (510) is two, and the two lower die extrusion blocks (552) are symmetrically distributed with the central axis of the lower die (1) as the symmetry axis, the lower die extrusion shell (510) is slidably connected to the outer surface of the direct-acting mounting block (55), the bottom surface of the top dead rotation block (58) is slidably connected to the top surface of the pop-up base (511), the spring mounting column (53) passes through the pop-up base (511), and the spring mounting column (53) is slidably connected to the pop-up base (511), the number of the connecting pins (5111) is four, and the four connecting pins (5111) are symmetrically distributed with the central axis of the pop-up base (511) as the symmetry axis, the number of the tool mounting seats (512) is four, and the two tool mounting seats (512) are symmetrically distributed with the central axis of the mold lower mold (1) as the symmetry axis, the number of the connecting grooves (5121) on each tool mounting seat (512) is two, and the two connecting grooves (5121) are symmetrically distributed with the central axis of the tool mounting seat (512) as the symmetry axis, the connecting pin (5111) is slidably connected to the connecting groove (5121), and the tool mounting seat (512) is slidably connected to the inner surface of the oblique groove (521).

7. The method for using the automatic mold opening and closing mechanism according to claim 1 comprises the following steps: S1. After cooling is completed, the motor (34) is started to drive the outer rotating disk (35), the rotating disk connecting shaft (351) and the toggle rod (36) to rotate. The motor (34) is connected to the active crank (37) at one end and the other end is connected to the outer rotating disk (35) at the other end through the rotating disk connecting shaft (351) extending from the motor (34). The outer rotating disk (35) only rotates, and the motor (34) drives the active cranks (37) on both sides to rotate. The active crank (37) drives the driven crank (38) connected thereto and the inner moving block (36) to rotate. 9) movement, in the initial state, the direct-acting column (391) and the rotating column (392) on the inner moving block (39) are both in the direct-acting groove (32) on the fixed side plate (31), and the two cranks first push the inner moving block (39) upward, which can be regarded as a crank slider mechanism, until the direct-acting column (391) reaches the end of the direct-acting groove (32), at which time the two cranks can no longer push the inner moving block (39) upward, and at the same time the rotating column (392) is at the connection between the direct-acting groove (32) and the rotating groove (33), at which time the two cranks continue to push the inner moving block (39) upward. The inner moving block (39) and the rotating column (392) will move along the rotating groove (33) and drive the inner moving block (39) to rotate with the axial direction of the direct-acting column (391) as the center. The inner moving blocks (39) on both sides are connected by the bracket mounting arm (310) and the moving block connecting rod (393) to ensure synchronous movement and rotation of the two sides. When the inner moving block (39) rotates, the bracket mounting arm (310) is installed with the upper mold connecting arm (311) through the bracket mounting bolt (3101), and the upper mold connecting arm (311) is installed with the connecting plug block through the connecting groove (3111). (312), the connecting block (312) is connected to the upper mold (2) of the mold through the block connecting bolt (421) on the mold opening vibration mechanism (4), and the part where the connecting block (312) is connected to the connecting groove (3111) is a semicircular rectangle and cannot rotate, so the upper mold connecting arm (311) always remains parallel to the upper mold (2) of the mold, so that the bracket mounting arm (310) can drive the upper mold (2) of the mold to rotate through the upper mold connecting arm (311) during the rotation of the inner moving block (39), thereby realizing the movement process of the upper mold (2) of the mold first rising and then turning over; S2. When the motor (34) drives the outer rotating disk (35) to rotate, the toggle rod (36) on the surface of the outer rotating disk (35) will also be driven to rotate. In the initial state, the toggle rod (36) is away from the lower mold toggle groove (313) on the lower mold (1), but the toggle rod (36) will still follow the rotation and gradually approach the lower mold toggle groove (313) until the direct-acting column (391) reaches the end of the direct-acting groove (32), and the toggle rod (36) contacts the lower mold toggle groove (313). At this time, the toggle rod (36) continues to rotate along with the outer rotating disk (35) and presses down the lower die toggle groove (313), driving the lower die toggle groove (313) to slide downward on the path limiting ring (314) and compress the rotation return spring (315), thereby driving the mold lower die (1) to flip downward. When the motor (34) is reversed, the toggle rod (36) no longer presses down the lower die toggle groove (313), and the rotation return spring (315) drives the lower die toggle groove (313) and the mold lower die (1) to return to their original position. S3. During the movement of the upper mold (2), since the upper mold (2) and the connecting plug block (312) are not directly connected but are installed via the plug block connecting bolts (421), the connecting plug block (312) is installed inside the vibration installation groove (42) and can slide up and down on the plug block connecting bolts (421). Since the height position of the connecting plug block (312) is fixed following the upper mold connecting arm (311) and the inner moving block (39), and the relative position of the connecting plug block (312) and the upper mold (2) is not fixed, the mold The upper mold (2) can move up and down within a small range during the upward movement of the upper mold connecting arm (311) and the inner moving block (39). During the upward movement of the connecting plug block (312), the driven gear (43) connected to it on the outside and engaged with the fixed rack (41) on the fixed side plate (31), and the driven gear (43) drives the external driven cam (44) to rotate. The driven cam (44) continuously lifts up and down the driven connection on the upper mold (2), so that the upper mold (2) of the mold vibrates up and down periodically. S4, the upper die (2) of the mold is clamped on the direct-acting mounting block (55) through the upper die connecting ring (51) and the extrusion block (552) and can be disconnected. The outer surface of the extrusion block (552) is two inclined planes, and the top inclined plane contacts the upper die connecting ring (51). When the upper die (2) of the mold moves downward, the upper die connecting ring (51) enters from the smaller end of the extrusion block (552), presses the extrusion block (552) into the direct-acting mounting block (55) and compresses the internal extrusion reset spring (553) until it is separated from the top inclined plane of the extrusion block (552). The extrusion reset spring (553) drives the extrusion block (552) to reset. At this time, the bottom of the upper die connecting ring (51) is placed on the top of the mounting block limit ring (551) and the extrusion block (55 2) The bottom of the top inclined plane is blocked, so that the upper mold (2) of the mold is connected to the direct-acting mounting block (55) through the upper mold connecting ring (51). When the upper mold (2) of the mold moves upward, it will first drive the direct-acting mounting block (55) to move upward together. At this time, the lower mold extrusion shell (510) on the lower mold of the mold (1) contacts the bottom inclined plane on the extrusion block (552). The more the direct-acting mounting block (55) moves upward, the deeper it is pressed into by the lower mold extrusion shell (510) until it is completely sunk into the interior. At this time, the upper mold connecting ring (51) is no longer restricted by the bottom of the top inclined plane on the extrusion block (552) and falls off from the direct-acting mounting block (55). At this time, the upper mold (2) of the mold is not connected to the direct-acting mounting block (55), and the direct-acting mounting block (55) is inside the lower mold of the mold (1). The spring (54) is moved in the lower die installation groove (52) and extends outward so that the extrusion block (552) is linked with the external structure. The moving path of the direct-acting installation block (55) is limited by the lower die installation groove (52) and the spring installation column (53). The direct-acting installation block (55) will squeeze the top force storage spring (54) during the upward movement. At this time, the pop-up base (511) at the top of the force storage spring (54) is stuck by the top-locking rotating block (58). The top-locking rotating block (58) is perpendicular to the pop-up base (511) at this time. The upward force of the pop-up base (511) and the collinear angle of the top-locking rotating block (58) are zero. At this time, the force storage spring (54) is blocked by the pop-up base (511) and cannot rise. It can only be compressed and stored. As the direct-acting installation block (55) continues to rise, it can The pulling shaft (56) is adjusted to contact the pulling arm (57), and the pulling arm (57) is driven to rise. Since it is hinged, an oblique upward force can be used from the side. Since it is not in line with the force arm, the top dead rotation block (58) can be pulled. The top dead rotation block (58) rotates outward and no longer blocks the pop-up base (511). The compressed force of the storage spring (54) is released to drive the pop-up base (511) to pop up quickly and lift the top tool mounting seat (512). The tool mounting seat (512) is slidably connected in the oblique oblique groove (521). During the rising process, it will move toward the inside of the lower mold (1) of the mold, driving the trimming tool (513) to quickly eject inward and obliquely upward, and trim and deburr the edge of the mold bonded to the upper mold (2).When the upper mold (2) of the mold moves downward, it will be connected to the direct-acting mounting block (55) again through the upper mold connecting ring (51) and contact the mounting block limit ring (551), pressing it downward to restore the entire mechanism.

Images