A Sichuan-shaped pallet injection mold with core reference positioning function

Abstract

The present invention relates to the field of mold injection technology, and discloses a Sichuan-shaped pallet injection mold with a core reference positioning function, including an upper mold, a lower mold and a core, the core is provided with two groups of symmetrical distribution, and a positioning mechanism is provided between the two cores in relative positions, the positioning mechanism includes a positioning hole and a positioning rod, the positioning hole is provided at one end of one of the cores, the positioning rod is movably plugged into the other core, the positioning rod is adapted to the positioning hole, and a release mechanism is provided at both ends of the upper mold, the release mechanism includes a base plate, slide rails are installed at both ends of the base plate, a slider is slidably connected to the slide rail, the bottom of the slider is fixedly connected to the core, and the release mechanism is used to control the movement of the core. The present invention sets a positioning rod and a positioning hole, and makes the two compatible, so that when they cooperate, they can drive the core to align, thereby preventing the core from deviating.

Description

Technical Field

[0001] The invention belongs to the technical field of mold injection, and in particular relates to a Sichuan-shaped pallet injection mold with a core reference positioning function. Background Art

[0002] Injection molds are tools for producing plastic products; they are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and then cooling and solidifying to obtain a molded product. The Chuan-shaped pallet is integrally molded by an injection mold, and integral molding can improve the structural strength of the Chuan-shaped pallet.

[0003] The Chinese patent with authorization announcement number CN219988345U discloses a high-precision Sichuan-shaped pallet injection mold with a core reference positioning mechanism. Through the lower template, upper template, mounting plate, lower mold frame, upper mold frame, Sichuan-shaped pallet mold core pouring hole, U-shaped guide plate, mounting groove, fixing plate, cylinder, push rod and positioning plate, during injection molding, the molten plastic raw material is injected into the Sichuan-shaped pallet mold core through the pouring hole, and the Sichuan-shaped pallet mold core can shape the raw material. When the raw material in the Sichuan-shaped pallet mold core is cooled, a Sichuan-shaped pallet can be formed. By controlling the operation of multiple cylinders, multiple cylinders drive multiple push rods to move, and multiple push rods drive positioning plates to move, so that multiple positioning plates are closely attached to the Sichuan-shaped pallet mold core. Through the cooperation of multiple positioning plates, the Sichuan-shaped pallet mold core can be accurately positioned, and the Sichuan-shaped pallet mold core can be prevented from being offset during use, thereby improving the molding accuracy of the Sichuan-shaped pallet injection mold, and effectively improving the dimensional accuracy of the Sichuan-shaped pallet produced by the injection mold.

[0004] However, this technical solution still has at least the following defects: positioning the core of the C-shaped pallet through the action of multiple cylinders and positioning plates is not only complex in structure, but also requires strict control of each positioning plate and synchronization of each cylinder to ensure a high degree of positioning, which requires a high degree of precision of the cylinder. In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an injection mold for a Sichuan-shaped pallet with a core reference positioning function. By setting a positioning rod and a positioning hole and making the two compatible, when they are matched, they can drive the core to align, thereby preventing the core from deviation. By setting a conversion mechanism, the movement of the positioning rod and the slider can be flexibly responded to. Only a single motor is required to control the movement sequence of the positioning rod and the slider, which is convenient for controlling the positioning rod and the slider, easy to operate, and simple in structure.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A Sichuan-shaped pallet injection mold with a core reference positioning function, comprising an upper mold, a lower mold and a core, wherein the core is provided with two groups of symmetrically distributed cores, and a positioning mechanism is provided between the two cores at opposite positions, wherein the positioning mechanism comprises a positioning hole and a positioning rod, wherein the positioning hole is provided at one end of one of the cores, the positioning rod is movably plugged into the other core, the positioning rod is adapted to the positioning hole, and the positioning mechanism is used for aligning the core;

[0008] Both ends of the upper mold are provided with a release mechanism, which includes a base plate, both ends of the base plate are equipped with slide rails, a slider is slidably connected to the slide rail, the bottom of the slider is fixedly connected to the core, and the release mechanism is used to control the movement of the core.

[0009] As a preferred embodiment of the present invention, a mounting plate is fixedly installed at one end of the core close to one end of the positioning rod, a mounting frame is fixedly installed on the mounting plate, a conversion mechanism is arranged on the mounting plate, the conversion mechanism includes a second gear, the outer side of the second gear is meshed with the first gear, and the conversion mechanism controls the rotation and revolution of the first gear through the self-locking condition of the second gear.

[0010] As a preferred embodiment of the present invention, the conversion mechanism also includes a connecting ring, on which a transmission mechanism is arranged, the transmission mechanism includes a first sprocket and a second sprocket, and a chain is meshed and connected between the first sprocket and the second sprocket, the first sprocket is coaxial with the connecting ring and is not connected, the second sprocket is rotatably connected to the inner side of the connecting ring, and the second sprocket is fixedly connected to the first gear.

[0011] As a preferred embodiment of the present invention, a power device is installed on the top of the mounting plate, the output end of the power device is fixedly connected to the first sprocket, the axial part of the connecting ring is movably sleeved on the output shaft of the power device, a tooth groove is opened on the outer side of the connecting ring, and a third gear is rotatably installed on the top of the mounting frame, and the third gear is meshed with the connecting ring through the tooth groove.

[0012] As a preferred embodiment of the present invention, a synchronous shaft is fixedly installed at one end of the third gear, a transmission assembly is installed at the other end of the synchronous shaft, the transmission assembly is fixedly installed on the top of the base plate, screw rods are installed at both ends of the transmission assembly, the transmission assembly connects the screw rod and the synchronous shaft through a synchronous belt and a synchronous wheel, the slider is threadedly connected to the screw rod, a support frame is fixedly installed between the two ends of the slide rail, the two ends of the screw rod are rotatably connected to the support frame, and a lifting device is installed between the support frame and the top of the upper mold.

[0013] As a preferred embodiment of the present invention, a worm is fixedly installed at one end of the second gear. A worm wheel is meshed and connected to the bottom of the worm. Fourth gears are fixedly installed at both ends of the worm wheel. Tooth patterns are provided at the bottom of the positioning rod, and the fourth gears are meshed with the positioning rod through the tooth patterns.

[0014] As a preferred embodiment of the present invention, a fixed sleeve is fixedly installed at the top of the core. Two sets of positioning mechanisms are provided on each set of cores. The positioning rod structures in the two sets of positioning mechanisms are different. A first groove is provided at the top of one of the positioning rods. A first insertion rod is movably inserted into the fixed sleeve near the first groove. The bottom of the first insertion rod is adapted to the first groove. A card slot is provided on the slide rail near the first insertion rod, and the card slot is adapted to the first insertion rod.

[0015] As a preferred embodiment of the present invention, a second insertion rod is movably inserted into the other fixed sleeve. The second insertion rod is made of a magnetic material. A magnet is embedded and installed on the slide rail near the second insertion rod. A second groove is provided at the top of the positioning rod near the second insertion rod, and the second groove is adapted to the second insertion rod.

[0016] As a preferred embodiment of the present invention, a driving device is installed at one end of the lower mold. The driving device is used to drive the lower mold to rotate. A trimming mechanism is provided on the lower mold. The trimming mechanism is used to trim the formed Sichuan character tray.

[0017] As a preferred embodiment of the present invention, the trimming mechanism includes a scraping knife. Both ends of the scraping knife are slidably installed on both sides of the lower mold. A transverse movement device is installed on both sides of the lower mold. The output end of the transverse movement device is connected to the scraping knife. The transverse movement device is used to drive the movement of the scraping knife. A collection groove is rotatably installed at one end of the lower mold away from the driving device.

[0018] The present invention has the following beneficial effects compared with the prior art:

[0019] By providing a positioning rod and a positioning hole and making them adapted to each other, the present invention can drive the cores to be aligned when they are matched, so that the cores will not deviate.

[0020] By providing a conversion mechanism to flexibly respond to the movement of the positioning rod and the slider, the control of the movement sequence of the positioning rod and the slider can be realized only by a single motor, which is convenient for controlling the positioning rod and the slider.

[0021] By providing a scraping knife and a collection groove to collect the waste of the formed Sichuan character tray, it is convenient for recycling and use. Description of the Drawings

[0022] Figure 1It is a schematic diagram of the overall structure of a C-shaped pallet injection mold with a core reference positioning function according to the present invention;

[0023] Figure 2 It is a schematic structural diagram of a core opening state of a Sichuan-shaped pallet injection mold with a core reference positioning function according to the present invention;

[0024] Figure 3 It is a structural schematic diagram of an upper mold and a lower mold of a Sichuan-shaped pallet injection mold with a core reference positioning function in an open state according to the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the substrate of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the synchronous shaft of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the fourth gear of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the second gear of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the connecting ring of the present invention;

[0030] Fig. 9 This is a structural schematic diagram of the positioning rod of the present invention;

[0031] Fig.10 This is a schematic diagram of the structure of the first rod insertion part of the present invention;

[0032] Fig.11 This is a structural schematic diagram of the second rod insertion position of the present invention;

[0033] Fig.12 This is a schematic diagram of the structure of the second groove and the second insertion rod in the adaptation state of the present invention;

[0034] Fig.13 It is a schematic diagram of the structure of the lower mold of the present invention.

[0035] Reference numerals:

[0036] 100, lifting device; 101, base plate; 102, upper mold; 103, transmission assembly; 104, screw rod; 105, support frame;

[0037] 200, slide rail; 201, slider; 202, core; 203, positioning hole; 204, positioning rod;

[0038] 300, mounting plate; 301, mounting frame; 302, power device; 303, first sprocket; 304, chain; 305, second sprocket; 306, first gear; 307, second gear; 308, connecting ring; 309, tooth groove; 310, third gear; 311, synchronization shaft;

[0039] 400, worm; 401, worm wheel; 402, fourth gear; 403, tooth pattern;

[0040] 500, fixed sleeve; 501, first plug rod; 502, first groove; 503, slot; 504, second plug rod; 505, second groove; 506, magnet;

[0041] 600, driving device; 601, lower mold; 602, scraper; 603, transverse movement device; 604, collecting tank. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0043] Example 1

[0044] like Figures 1 to 13 As shown, a Sichuan-shaped pallet injection mold with a core reference positioning function includes an upper mold 102, a lower mold 601 and a core 202, the core 202 is provided with two groups of symmetrical distribution, and a positioning mechanism is provided between two cores 202 at relative positions, the positioning mechanism includes a positioning hole 203 and a positioning rod 204, the positioning hole 203 is opened at one end of one of the cores 202, the positioning rod 204 is movably plugged into the other core 202, the positioning rod 204 is adapted to the positioning hole 203, and the positioning mechanism is used for aligning the core 202;

[0045] Both ends of the upper mold 102 are provided with a release mechanism, which includes a base plate 101. Both ends of the base plate 101 are equipped with slide rails 200. A slider 201 is slidably connected to the slide rails 200. The bottom of the slider 201 is fixedly connected to the core 202. The release mechanism is used to control the movement of the core 202.

[0046] like Figure 5 , Figure 7 , Figure 8As shown, in a specific embodiment, a mounting plate 300 is fixedly mounted on one end of the core 202 near one end of the positioning rod 204, a mounting frame 301 is fixedly mounted on the mounting plate 300, a conversion mechanism is arranged on the mounting plate 300, the conversion mechanism comprises a second gear 307, the outer side of the second gear 307 is meshedly connected with a first gear 306, and the conversion mechanism controls the rotation and revolution of the first gear 306 through the self-locking condition of the second gear 307. In this setting, when the second gear 307 can rotate, the first gear 306 rotates and drives the second gear 307 to rotate, and when the second gear 307 cannot rotate, the first gear 306 revolves around the second gear 307.

[0047] like Figure 5 , Figure 7 , Figure 8 As shown, further, the conversion mechanism also includes a connecting ring 308, and a transmission mechanism is arranged on the connecting ring 308, and the transmission mechanism includes a first sprocket 303 and a second sprocket 305, and a chain 304 is meshed and connected between the first sprocket 303 and the second sprocket 305, the first sprocket 303 and the connecting ring 308 are coaxial and not connected, the second sprocket 305 is rotatably connected to the inner side of the connecting ring 308, and the second sprocket 305 is fixedly connected to the first gear 306. In this setting, the transmission mechanism realizes the transmission function through the first sprocket 303, the second sprocket 305 and the chain 304.

[0048] like Figure 5 , Figure 7 , Figure 8 As shown, further, a power device 302 is installed on the top of the mounting plate 300, the output end of the power device 302 is fixedly connected to the first sprocket 303, the axial center of the connecting ring 308 is movably sleeved on the output shaft of the power device 302, a tooth groove 309 is provided on the outer side of the connecting ring 308, and a third gear 310 is rotatably installed on the top of the mounting frame 301, and the third gear 310 is meshed with the connecting ring 308 through the tooth groove 309. In this setting, the power device 302 adopts an energy-saving permanent magnet assisted synchronous reluctance motor, and the third gear 310 is driven through the tooth groove 309 when the connecting ring 308 rotates.

[0049] Example 2

[0050] like Figure 3 , Figure 4 , Figure 5 , Figure 7As shown, in a specific embodiment, a synchronization shaft 311 is fixedly installed at one end of the third gear 310, and a transmission assembly 103 is installed at the other end of the synchronization shaft 311. The transmission assembly 103 is fixedly installed on the top of the base plate 101, and screw rods 104 are installed at both ends of the transmission assembly 103. The transmission assembly 103 connects the screw rod 104 with the synchronization shaft 311 through a synchronous belt and a synchronous wheel. The slider 201 is threadedly connected to the screw rod 104, and a support frame 105 is fixedly installed between the two ends of the slide rail 200. The two ends of the screw rod 104 are rotatably connected to the support frame 105, and a lifting device 100 is installed on the support frame 105 and the top of the upper mold 102. In this setting, the synchronization shaft 311 adopts a telescopic structure to adapt to the movement of the slider 201. The lifting device 100 adopts a hydraulic cylinder to provide lifting force. The connecting ring 308 drives the synchronization shaft 311 to rotate through the engagement of the tooth groove 309 with the third gear 310. The synchronization shaft 311 drives the transmission assembly 103 to rotate, thereby rotating the screw rod 104. The screw rod 104 drives the slider 201 to move by cooperating with the slider 201, thereby moving the core 202.

[0051] like Figure 5 , Figure 6 , Figure 7 , Fig.10 As shown, further, a worm 400 is fixedly mounted on one end of the second gear 307, a worm wheel 401 is meshedly connected to the bottom of the worm 400, a fourth gear 402 is fixedly mounted on both ends of the worm wheel 401, a tooth pattern 403 is provided at the bottom of the positioning rod 204, and the fourth gear 402 is meshed with the positioning rod 204 through the tooth pattern 403. In this configuration, the second gear 307 drives the worm 400 to rotate, the worm 400 drives the worm wheel 401 to rotate through meshing, the worm wheel 401 drives the fourth gear 402 to rotate, and the fourth gear 402 drives the positioning rod 204 to move through meshing with the tooth pattern 403.

[0052] like Figure 1 , Fig.10As shown, further, a fixed sleeve 500 is fixedly installed on the top of the core 202, and two groups of positioning mechanisms are provided on each group of cores 202. The structures of the positioning rods 204 in the two groups of positioning mechanisms are different. A first groove 502 is opened on the top of one of the positioning rods 204, and a first plug rod 501 is movably inserted on the fixed sleeve 500 near the first groove 502, and the bottom of the first plug rod 501 is adapted to the first groove 502, and a slot 503 is opened on the side of the slide rail 200 near the first plug rod 501, and the slot 503 is adapted to the first plug rod 501. In this configuration, when the positioning rod 204 moves to the position where the first groove 502 is aligned with the first insertion rod 501, the first insertion rod 501 enters the first groove 502 and disengages from the slot 503. At this time, the positioning rod 204 cannot continue to extend due to the action of the first insertion rod 501 and the first groove 502. At the same time, the disengagement of the first insertion rod 501 from the slot 503 allows the slider 201 and the slide rail 200 to slide relative to each other.

[0053] like Fig.11 , Fig.12 As shown, further, a second plug rod 504 is movably plugged into another fixed sleeve 500, and the second plug rod 504 is made of magnetic material. A magnet 506 is embedded and installed on the side of the slide rail 200 close to the second plug rod 504, and a second groove 505 is provided on the top of the positioning rod 204 close to the second plug rod 504, and the second groove 505 is adapted to the second plug rod 504. In this setting, when the slider 201 moves, the second plug rod 504 is driven to move by the fixed sleeve 500 and staggered with the magnet 506. At this time, the second plug rod 504 is no longer attracted by the magnetic force, and enters the second groove 505 under the action of gravity, so that the positioning rod 204 cannot be inserted. When the core 202 is installed, the slider 201 is against the lower mold 601 and cannot continue to move. At this time, the second plug rod 504 moves to a state aligned with the magnet 506, and rises under the magnetic force of the magnet 506, so as to be separated from the second groove 505, and the positioning rod 204 can be inserted into the core 202.

[0054] Example 3

[0055] like Fig.13As shown, in the specific implementation manner, a driving device 600 is installed at one end of the lower mold 601. The driving device 600 is used to drive the lower mold 601 to rotate. A trimming mechanism is arranged on the lower mold 601. The trimming mechanism is used to trim the formed S-shaped tray. The trimming mechanism includes a scraper 602. Both ends of the scraper 602 are slidably installed on both sides of the lower mold 601. A transverse movement device 603 is installed on both sides of the lower mold 601. The output end of the transverse movement device 603 is connected to the scraper 602. The transverse movement device 603 is used to drive the movement of the scraper 602. A collection trough 604 is rotatably installed at one end of the lower mold 601 away from the driving device 600. In this setting, the driving device 600 adopts a low-speed and high-torque servo motor, which is used to provide precise angle control. The transverse movement device 603 adopts an electric cylinder. The upper mold 102 is controlled to rise by the lifting device 100. The lower mold 601 is controlled to rotate by the driving device 600. During the rotation process, the transverse movement device 603 is used to control the reciprocating movement of the scraper 602, so as to cut off the residual plastic. The cut waste falls into the collection trough 604, which is convenient for subsequent recycling.

[0056] The implementation principle of an S-shaped tray injection mold with a core reference positioning function in this embodiment is as follows: When demolding, the power device 302 is started. At this time, the positioning rod 204 is in the state of being inserted into the positioning hole 203, that is, the first insertion rod 501 is not stuck in the first groove 502, and the top of the first insertion rod 501 is inserted into the card slot 503. At this time, the slide rail 200 and the slider 201 remain relatively fixed. When the power device 302 rotates, the first gear 306 is driven to rotate through the first sprocket 303, the chain 304, and the second sprocket 305;

[0057] The first gear 306 drives the second gear 307 to rotate through meshing. The second gear 307 drives the worm 400 to rotate. The worm 400 drives the worm wheel 401 to rotate through meshing. The worm wheel 401 drives the fourth gear 402 to rotate. The fourth gear 402 drives the positioning rod 204 to move through meshing with the tooth pattern 403, and makes the positioning rod 204脱离 the positioning hole 203;

[0058] When the positioning rod 204 moves to the position where the first groove 502 and the first insertion rod 501 are aligned, the first insertion rod 501 enters the first groove 502 and disengages from the slot 503. At this time, the positioning rod 204 cannot be further extended under the action of the first insertion rod 501 and the first groove 502. At the same time, the disengagement of the first insertion rod 501 from the slot 503 allows the slider 201 and the slide rail 200 to slide relatively. The positioning rod 204 cannot be further extended, so that the second gear 307 cannot rotate. As a result, when the first gear 306 rotates, it revolves around the second gear 307 through meshing with the second gear 307. The first gear 306 revolves around the second gear 307 while driving the connecting gear 306 The connecting ring 308 rotates, and the connecting ring 308 drives the synchronous shaft 311 to rotate through the meshing of the tooth groove 309 and the third gear 310. The synchronous shaft 311 drives the transmission assembly 103 to rotate, thereby rotating the screw rod 104. The screw rod 104 drives the slider 201 to move through the cooperation with the slider 201, thereby moving the core 202 until the core 202 is separated from the upper mold 102 and the lower mold 601. When the slider 201 moves, the second insertion rod 504 is driven to move through the fixed sleeve 500 and staggered with the magnet 506. At this time, the second insertion rod 504 is no longer attracted by the magnetic force and enters the second groove 505 under the action of gravity, so that the positioning rod 204 cannot be inserted;

[0059] At this time, the upper mold 102 is controlled to rise upward by the lifting device 100, and the lower mold 601 is controlled to rotate by the driving device 600. During the rotation, the scraper 602 is controlled to reciprocate by the transverse device 603, so as to cut off the residual plastic, and the cut waste falls into the collection tank 604 for subsequent recycling;

[0060] During installation, the upper mold 102 and the lower mold 601 are aligned through the lifting device 100 and the driving device 600. At this time, the power device 302 is started. Since the positioning rod 204 is fixed under the action of the second insertion rod 504 and the second groove 505, when the power device 302 drives the first gear 306 to rotate, the first gear 306 revolves around the second gear 307, so that the slider 201 moves and resets, and drives the core 202 to be installed in the upper mold 102 and the lower mold 601. When the core 202 is installed, the slider 201 is against the lower mold 601 and cannot move further. At this time, the second insertion rod 504 moves to a state aligned with the magnet 506, and rises under the magnetic force of the magnet 506, thereby disengaging from the second groove 505. At this time, the positioning rod 204 can be inserted into the core 202;

[0061] At the same time, since the slider 201 cannot move further, the first gear 306 is converted from orbital motion to rotation, and drives the second gear 307 to rotate, and the positioning rod 204 is moved through structures such as the worm 400 and the worm wheel 401. The positioning rod 204 is inserted into the positioning hole 203 during the movement, so that the core 202 is aligned.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A Sichuan-shaped pallet injection mold with a core reference positioning function, comprising an upper mold (102), a lower mold (601) and a core (202), characterized in that: The cores (202) are provided with two groups that are symmetrically distributed, and a positioning mechanism is provided between two cores (202) at opposite positions, the positioning mechanism comprising a positioning hole (203) and a positioning rod (204), the positioning hole (203) being opened at one end of one of the cores (202), the positioning rod (204) being movably plugged into the other core (202), the positioning rod (204) being matched with the positioning hole (203), and the positioning mechanism being used for aligning the cores (202); Both ends of the upper mold (102) are provided with a release mechanism, the release mechanism comprising a base plate (101), both ends of the base plate (101) are provided with slide rails (200), a slider (201) is slidably connected to the slide rail (200), the bottom of the slider (201) is fixedly connected to the core (202), and the release mechanism is used to control the movement of the core (202); A mounting plate (300) is fixedly mounted on one end of the core (202) near one end of the positioning rod (204), a mounting frame (301) is fixedly mounted on the mounting plate (300), a conversion mechanism is arranged on the mounting plate (300), the conversion mechanism comprises a second gear (307), the outer side of the second gear (307) is meshingly connected with the first gear (306), and the conversion mechanism controls the rotation and revolution of the first gear (306) through the self-locking condition of the second gear (307); The conversion mechanism further comprises a connecting ring (308), on which a transmission mechanism is arranged, the transmission mechanism comprising a first sprocket (303) and a second sprocket (305), wherein a chain (304) is meshingly connected between the first sprocket (303) and the second sprocket (305), the first sprocket (303) and the connecting ring (308) being coaxial and not connected, the second sprocket (305) being rotatably connected to the inner side of the connecting ring (308), and the second sprocket (305) being fixedly connected to the first gear (306).

2. The injection mold for a Sichuan-shaped pallet with a core reference positioning function according to claim 1, characterized in that: A power device (302) is installed on the top of the mounting plate (300); the output end of the power device (302) is fixedly connected to the first sprocket (303); the axial center portion of the connecting ring (308) is movably sleeved on the output shaft of the power device (302); a tooth groove (309) is provided on the outer side of the connecting ring (308); a third gear (310) is rotatably installed on the top of the mounting frame (301); the third gear (310) is meshed with the connecting ring (308) through the tooth groove (309).

3. The injection mold for a Sichuan-shaped pallet with a core reference positioning function according to claim 2, characterized in that: One end of the third gear (310) is fixedly installed with a synchronizing shaft (311). The other end of the synchronizing shaft (311) is installed with a transmission assembly (103). The transmission assembly (103) is fixedly installed on the top of the substrate (101). Both ends of the transmission assembly (103) are installed with lead screws (104). The transmission assembly (103) connects the lead screws (104) and the synchronizing shaft (311) through a timing belt and a synchronous pulley. The slider (201) is threadedly connected to the lead screw (104). A support frame (105) is fixedly installed between both ends of the slide rail (200). Both ends of the lead screw (104) are rotatably connected to the support frame (105). A lifting device (100) is installed between the support frame (105) and the top of the upper mold (102).

4. The injection mold for a Sichuan-shaped pallet with a core reference positioning function according to claim 3, characterized in that: One end of the second gear (307) is fixedly installed with a worm (400). The bottom of the worm (400) is meshed with a worm gear (401). Both ends of the worm gear (401) are fixedly installed with fourth gears (402). Tooth threads (403) are provided at the bottom of the positioning rod (204). The fourth gear (402) is meshed with the positioning rod (204) through the tooth threads (403).

5. The injection mold for a Sichuan-shaped pallet with a core reference positioning function according to claim 4, characterized in that: A fixed sleeve (500) is fixedly installed on the top of the core (202). Two sets of positioning mechanisms are provided on each core (202). The positioning rods (204) in the two sets of positioning mechanisms have different structures. A first groove (502) is provided at the top of one of the positioning rods (204). A first insertion rod (501) is movably inserted into the fixed sleeve (500) near the first groove (502). The bottom of the first insertion rod (501) is adapted to the first groove (502). A card slot (503) is provided on one side of the slide rail (200) near the first insertion rod (501). The card slot (503) is adapted to the first insertion rod (501).

6. The injection mold for a Sichuan-shaped pallet with a core reference positioning function according to claim 5, characterized in that: A second insertion rod (504) is movably inserted into the other fixed sleeve (500). The second insertion rod (504) is made of a magnetic material. A magnet (506) is embedded on one side of the slide rail (200) near the second insertion rod (504). A second groove (505) is provided at the top of the positioning rod (204) near the second insertion rod (504). The second groove (505) is adapted to the second insertion rod (504).

7. The injection mold for a Sichuan-shaped pallet with a core reference positioning function according to claim 6, characterized in that: A driving device (600) is installed at one end of the lower mold (601). The driving device (600) is used to drive the lower mold (601) to rotate. A trimming mechanism is provided on the lower mold (601). The trimming mechanism is used to trim the formed Sichuan character tray.

8. The injection mold for a C-shaped pallet with a core reference positioning function according to claim 7, characterized in that: The trimming mechanism comprises a scraper (602), the two ends of which are slidably mounted on the two sides of the lower mold (601), and transverse movement devices (603) are mounted on the two sides of the lower mold (601), the output end of the transverse movement device (603) is connected to the scraper (602), and the transverse movement device (603) is used to drive the movement of the scraper (602), and a collecting trough (604) is rotatably mounted on one end of the lower mold (601) away from the driving device (600).

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