A fully automatic nut insert injection molding machine

Abstract

The application provides a full-automatic nut insert injection molding machine and relates to the technical field of injection molding machines, which comprises an injection molding part and a turnover part, wherein the turnover part comprises a turnover assembly and a feeding assembly; the turnover assembly comprises a turnover frame, two lower molds are slidably connected in the turnover frame and are symmetrically arranged in the turnover frame, a first spring is fixedly installed between the two lower molds, two supporting rods are fixedly installed in the turnover frame, a limiting sleeve is inserted into the turnover frame, a second electric push rod is fixedly installed in the limiting sleeve, the limiting sleeve abuts against one side of one of the lower molds, and an inclined surface is formed at one end of the limiting sleeve. Through cooperation of the turnover assembly and the feeding assembly, the threaded sleeve is automatically driven to rotate into the nut inner cavity during the turnover process, the sealing element is matched to seal the nut threaded cavity, the molten plastic is effectively prevented from penetrating into the nut thread, the product is prevented from slipping and the thread is prevented from being blocked and scrapped, and the insert injection molding overflow defect is solved from the root.

Description

Technical Field

[0001] This invention relates to the field of injection molding machine technology, and in particular to a fully automatic nut insert injection molding machine. Background Technology

[0002] A plastic injection molding machine (also known as a plastic injection molding machine) is a core piece of equipment used in the plastics manufacturing industry to mold thermoplastic or thermosetting plastics into plastic products through a mold. This equipment is classified into three types according to its structure: vertical, horizontal, and all-electric. Its core components include the injection system (screw and barrel), the mold clamping system, the hydraulic transmission system, and the control system. Its workflow involves heating and molten plastic, injecting it under high pressure into the mold cavity, and then cooling and solidifying it to form the finished product. All-electric models use servo motors instead of traditional hydraulic drives to improve precision.

[0003] Nut insert injection molding is a process in which a metal nut is used as a pre-embedded insert and integrally molded with molten plastic. It is widely used in products such as appliance housings, electronic components, and automotive plastic structural parts. The molded product combines the lightweight of plastic with the strength of metal threaded connections. It is a common production process in the parts processing industry. Traditional equipment mostly uses a single-mold structure. The entire process requires manual placement of the nut, mold closing and injection molding, cooling and pressure holding, and mold opening and part removal. During the injection and cooling stages, the equipment is idle and waiting. The processes cannot be parallelized. Moreover, manual placement is prone to problems such as nut skew, misalignment, and omission. After injection molding, defects such as eccentricity, material shortage, and unqualified thread embedment depth are produced. At the same time, manual operation poses safety hazards such as pinching hands and high temperature burns, which is not conducive to the layout of automated production lines. In addition, during the injection process, because the molten plastic has high pressure fluidity, conventional molds rely only on the end face of the nut for sealing. High-pressure molten plastic can easily pour into the internal thread cavity of the nut, causing thread blockage and stripping. The product completely loses its connection function and can only be scrapped. Summary of the Invention

[0004] To address the technical problems of existing injection molding machines, such as misalignment caused by manual feeding and molten plastic seeping into the nut during injection, leading to damage and scrap of the nut insert, this invention provides a fully automatic nut insert injection molding machine.

[0005] The technical solutions provided by the embodiments of the present invention are as follows: This invention provides a fully automatic nut insert injection molding machine, comprising: an injection molding component and a flipping component, wherein the flipping component includes a flipping assembly and a feeding assembly; The flipping assembly includes a flipping frame, with two lower molds slidably connected inside the flipping frame. The two lower molds are arranged in a mirror-symmetrical manner inside the flipping frame. A first spring is fixedly installed between the two lower molds. Two support rods are fixedly installed inside the flipping frame. A limit sleeve is inserted inside the flipping frame. A second electric push rod is fixedly installed inside the limit sleeve. The limit sleeve abuts against one side of one of the lower molds. One end of the limit sleeve has an inclined surface.

[0006] The flipping component can be flipped under the drive of the injection molding machine motor. By alternately moving the two lower molds to the injection position for injection molding, the injection molding machine can perform continuous injection molding, thereby improving the injection molding efficiency of the injection molding machine.

[0007] Optionally, the injection molding component includes a frame, a positioning rod fixedly installed on the top of the frame, a protective shell slidably connected to the outer wall of the positioning rod, a first electric push rod fixedly installed on the bottom of the protective shell, a material box fixedly installed on one side of the protective shell, a heating conveying pipe fixedly installed inside the protective shell, the heating conveying pipe communicating with the material box, an upper mold fixedly installed at the bottom of the heating conveying pipe, a support plate provided on the top of the upper mold, the support plate fixedly installed on the outer wall of the positioning rod, and one end of the first electric push rod fixedly installed on the top of the support plate.

[0008] Optionally, the heating conveying pipe is inserted into the inside of the support plate, the inside of the frame is provided with a feeding trough, a spare nut is inserted into the inside of the feeding trough, the limiting sleeve is slidably connected to the inside of the frame, and the tilting frame is connected to the inside of the frame by a motor rotation.

[0009] Optionally, the feeding assembly includes two connecting sleeves, which are respectively fixedly installed inside two support rods. A rotating rod is rotatably connected inside each of the two connecting sleeves. A first gear is fixedly connected to one end of each rotating rod that is close to the other. A second gear is meshed with the outer wall of the first gear on one of the rotating rods. A positioning member is rotatably connected to the end of the first gear on the other rotating rod. The second gear is rotatably connected to one side of the positioning member. A gear component is rotatably connected inside the positioning member. The positioning member is used to position the relative positions of the first gear, the second gear, and the gear component.

[0010] Optionally, a positioning sleeve is rotatably connected to one side of the gear component, and a gear rod is rotatably connected inside the positioning sleeve and the connecting sleeve. The positioning sleeve is used to position the relative position of the gear component and the gear rod. Two arc-shaped gear rods are fixedly installed on the inner wall of the frame. One end of the gear rod meshes with one of the arc-shaped gear rods, and the other end of the gear rod meshes with the outer wall of the gear component.

[0011] Optionally, the rotating rod is slidably connected to an insert rod, the outer wall of the insert rod is slidably connected to a threaded sleeve, the outer wall of the threaded sleeve is connected to a nut by threads, the outer wall of the threaded sleeve is rotatably connected to a sealing element, the outer wall of the sealing element is fitted with an installation block, the outer contour of the sealing element is adapted to the inner contour of the installation block, the outer contour of the sealing element is the same as the outer contour of the nut, and the installation block is fixedly installed inside the lower mold.

[0012] Optionally, each of the two connecting sleeves is fixedly connected to a limiting component at one end away from the other. The limiting component has an inclined groove inside, and a pressure rod is inserted into the limiting component. The pressure rod is slidably connected inside the inclined groove. A triangular locking block is slidably connected to the outer wall of the pressure rod. A return spring is fixedly installed at the bottom of the pressure rod, and the return spring is fixedly installed inside the limiting component.

[0013] Optionally, a third spring is sleeved on the outer wall of the rotating rod. One end of the third spring is fixedly installed on the inner wall of the connecting sleeve, and the end of the third spring away from the first gear abuts against the inner wall of the threaded sleeve. The mounting block has a locking rod slidably connected in an inclined shape inside, and the limiting member abuts against the outer wall of the locking rod.

[0014] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: 1. Through the cooperation of the flipping component and the feeding component, the threaded sleeve is automatically driven into the inner cavity of the nut during the flipping process. With the help of the sealing component, the nut thread cavity is sealed, which effectively prevents molten plastic from seeping into the nut thread, avoiding product stripping and thread blockage and scrapping. It solves the defect of insert injection molding overflow from the root. Moreover, when the mold is closed, the sealing component and the nut can be radially pressed by the locking inclined bar to resist the high pressure impact of injection molding, prevent the nut from moving backward, ensure the cavity alignment accuracy, and reduce defective products such as material shortage, deformation and eccentricity. 2. The machine adopts a flip frame structure with a double mirror lower mold, which can realize the parallel operation of injection molding on one side and material unloading and nut loading on the other side at the same time. This eliminates the waiting window of injection molding in single mold models and greatly improves the continuous injection molding capacity of the whole machine. At the same time, the machine automatically pushes spare nuts through the limit sleeve and the second electric push rod in conjunction with the feeding groove, replacing manual placement of nuts, reducing manual intervention and shortening the auxiliary time for single-piece production. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the overall structure of a fully automatic nut insert injection molding machine provided in an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the flipping component structure of a fully automatic nut insert injection molding machine provided in an embodiment of the present invention.

[0018] Figure 3 This is a partial structural cross-sectional view of the flipping component of a fully automatic nut insert injection molding machine provided in an embodiment of the present invention.

[0019] Figure 4 This is a structural schematic diagram of the flipping component of a fully automatic nut insert injection molding machine provided in an embodiment of the present invention from another perspective.

[0020] Figure 5 This is a partial structural diagram of the flipping component of a fully automatic nut insert injection molding machine provided in an embodiment of the present invention.

[0021] Figure 6 This is a partial structural cross-sectional view of the feeding assembly of a fully automatic nut insert injection molding machine provided in an embodiment of the present invention.

[0022] Figure 7 This invention provides a fully automatic nut insert injection molding machine. Figure 6 Enlarged view of the structure of part A.

[0023] Figure 8 This is a partial structural diagram of the feeding assembly of a fully automatic nut insert injection molding machine provided in an embodiment of the present invention; Figure 9 This is a cross-sectional view of the mounting block structure of a fully automatic nut insert injection molding machine provided in an embodiment of the present invention.

[0024] Figure label: 101. Frame; 102. Positioning rod; 103. Protective shell; 104. First electric push rod; 105. Material box; 106. Heating conveying pipe; 107. Upper mold; 108. Support plate; 201. Tilting frame; 202. Lower mold; 204. First spring; 205. Support rod; 206. Limiting sleeve; 207. Second electric push rod; 208. Feeding groove; 209. Spare nut; 301. Connecting sleeve; 302. Rotating rod; 303. First gear; 304. Second gear; 305. Positioning component; 306. Gear component; 307. Positioning sleeve; 308. Gear rod; 309. Arc-shaped gear rod; 310. Insert rod; 311. Threaded sleeve; 312. Nut; 313. Seal; 314. Mounting block; 315. Limiting component; 316. Slanted slide groove; 317. Pressure rod; 318. Triangular locking block; 319. Return spring; 320. Third spring; 321. Locking slanted rod.

[0025] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0026] The technical solutions of the present invention will now be described with reference to the accompanying drawings. It should also be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0027] like Figures 1 to 9 As shown, an embodiment of the present invention provides a fully automatic nut insert injection molding machine, including: an injection molding component and a flipping component, wherein the flipping component includes a flipping assembly and a feeding assembly; The flipping assembly includes a flipping frame 201, with two lower molds 202 slidably connected inside the flipping frame 201. The two lower molds 202 are arranged in a mirror symmetrical manner inside the flipping frame 201. A first spring 204 is fixedly installed between the two lower molds 202. Two support rods 205 are fixedly installed inside the flipping frame 201. A limiting sleeve 206 is inserted into the flipping frame 201. A second electric push rod 207 is fixedly installed inside the limiting sleeve 206. The limiting sleeve 206 abuts against one side of one of the lower molds 202. One end of the limiting sleeve 206 has an inclined surface.

[0028] It should be noted that the flipping component of the present invention can be flipped under the drive of the injection molding machine motor. During the flipping process, the injection-molded nut insert is removed and a new nut is moved to the injection molding part for injection molding. By alternately injecting through the two lower molds 202, the injection molding machine can perform continuous injection molding, thereby improving the injection molding efficiency of the injection molding machine.

[0029] In one possible implementation, the injection molding component includes a frame 101, a positioning rod 102 fixedly mounted on the top of the frame 101, a protective shell 103 slidably connected to the outer wall of the positioning rod 102, a first electric push rod 104 fixedly mounted on the bottom of the protective shell 103, a material box 105 fixedly mounted on one side of the protective shell 103, a heating conveying pipe 106 fixedly mounted inside the protective shell 103, the heating conveying pipe 106 communicating with the material box 105, an upper mold 107 fixedly mounted on the bottom of the heating conveying pipe 106, a support plate 108 provided on the top of the upper mold 107, the support plate 108 fixedly mounted on the outer wall of the positioning rod 102, and one end of the first electric push rod 104 fixedly mounted on the top of the support plate 108.

[0030] The heating conveying pipe 106 is inserted into the support plate 108. The frame 101 has a feeding trough 208 inside. A spare nut 209 is inserted into the feeding trough 208. The limiting sleeve 206 is slidably connected to the inside of the frame 101. The tilting frame 201 is connected to the inside of the frame 101 by a motor rotation.

[0031] It should be noted that the injection-molded component of the present invention can be used to injection mold nut inserts.

[0032] In one possible implementation, the feeding assembly includes two connecting sleeves 301, which are respectively fixedly installed inside two support rods 205. Rotary rods 302 are rotatably connected inside each of the two connecting sleeves 301. A first gear 303 is fixedly connected to one end of each of the two rotating rods 302 that is close to each other. A second gear 304 meshes with the outer wall of the first gear 303 on one of the rotating rods 302. A positioning member 305 is rotatably connected to the end of the first gear 303 on the other rotating rod 302. The second gear 304 is rotatably connected to one side of the positioning member 305. A gear member 306 is rotatably connected inside the positioning member 305. The gear member 306 consists of two spur gears and one bevel gear. The two spur gears mesh with one of the first gears 303 and the second gear 304, respectively. The bevel gear is located inside the positioning sleeve 307 and meshes with a gear rod 308. The positioning member 305 is used to position the relative positions of the first gear 303, the second gear 304, and the gear member 306.

[0033] A positioning sleeve 307 is rotatably connected to one side of the gear component 306. A gear rod 308 is rotatably connected inside the positioning sleeve 307 and the connecting sleeve 301. The positioning sleeve 307 is used to position the relative position of the gear component 306 and the gear rod 308. Two arc-shaped gear rods 309 are fixedly installed on the inner wall of the frame 101. One end of the gear rod 308 meshes with one of the arc-shaped gear rods 309, and the other end of the gear rod 308 meshes with the outer wall of the gear component 306.

[0034] The inner side of the rotating rod 302 is slidably connected to the insert rod 310. The outer wall of the insert rod 310 is slidably connected to the threaded sleeve 311. The outer wall of the threaded sleeve 311 is connected to the nut 312 by threads. The outer wall of the threaded sleeve 311 is rotatably connected to the sealing element 313. The outer wall of the sealing element 313 is fitted with the mounting block 314. The outer contour of the sealing element 313 is adapted to the inner contour of the mounting block 314. The outer contour of the sealing element 313 is the same as the outer contour of the nut 312. The mounting block 314 is fixedly installed inside the lower mold 202.

[0035] Two connecting sleeves 301 are fixedly connected to a limiting member 315 at their far ends. The limiting member 315 has an inclined groove 316 inside. A pressure rod 317 is inserted into the limiting member 315. The pressure rod 317 is slidably connected inside the inclined groove 316. A triangular block 318 is slidably connected to the outer wall of the pressure rod 317. A return spring 319 is fixedly installed at the bottom of the pressure rod 317. The return spring 319 is fixedly installed inside the limiting member 315.

[0036] A third spring 320 is sleeved on the outer wall of the rotating rod 302. One end of the third spring 320 is fixedly installed on the inner wall of the connecting sleeve 301. The end of the third spring 320 away from the first gear 303 abuts against the inner wall of the threaded sleeve 311. The mounting block 314 is slidably connected to a locking rod 321 in an inclined shape. The limiting member 315 abuts against the outer wall of the locking rod 321.

[0037] It should be noted that the feeding component of the present invention can automatically install and position the nut of the nut insert when the flipping component is flipped, and avoid molten plastic from seeping into the nut during the injection molding process, thereby improving the yield of nut inserts.

[0038] Working principle: When the injection molding machine is working, the motor connected to the tilting frame 201 inside the frame 101 first works, driving the tilting frame 201 to rotate. This causes the tilting frame 201 to rotate the two lower molds 202 and the feeding assembly inside, thus exchanging the positions of the two lower molds 202. During the rotation of the tilting frame 201, the gear rod 308 passes through the arc-shaped gear rod 309 and is driven to rotate by the arc-shaped gear rod 309. The rotation of the gear rod 308 drives the gear component 306 to rotate. The rotation of the gear component 306 drives one of the first gears 303 to rotate, and through the second gear 304, it drives the other first gear 303 to rotate, so that the two first gears 303 rotate in opposite directions. This causes the two first gears 303 to drive the threaded sleeve 311 to rotate through the corresponding rotating rod 302 and insert rod 310. One threaded sleeve 311 is disconnected from the threaded connection of the nut 312, allowing another threaded sleeve 311 to connect to the nut 312 via its thread, sealing the internal cavity of the nut 312 to prevent molten plastic from entering the threads of the nut 312 during subsequent injection molding, which would affect the product quality of the nut insert. After the flipping assembly is flipped, the nut 312, which is threadedly connected to the threaded sleeve 311, rotates to the top for injection molding. The nut 312, which is disconnected from the threaded sleeve 311, loses its connection and falls off the mold under the action of gravity. Subsequently, the injection molding machine controller controls the second electric push rod 207 to extend, causing the second electric push rod 207 to push the limit sleeve 206 to move. The movement of the limit sleeve 206 will push a spare nut 209 to move between the lower mold 202 and its corresponding connecting sleeve 301. It should be noted that when the limiting sleeve 206 is pushed by the second electric push rod 207, the limiting sleeve 206 will push and squeeze the lower mold 202 below through the inclined surface to slide down along the flip frame 201 until the lower mold 202 moves to the end of the sliding connection of the flip frame 201. At this time, the limiting sleeve 206 will limit the rotation of the flip frame 201 through the lower mold 202, ensuring that after the flip frame 201 rotates, the two lower molds 202 are in a horizontal state so as to cooperate with the upper mold 107 for injection molding. At the same time, the descent of the lower mold 202 will cause the mounting block 314 on the lower mold 202 to move away from the limiting member 315 on the corresponding connecting sleeve 301, thereby increasing the distance between the mounting block 314 and the limiting member 315 on the lower mold 202, ensuring that the spare nut 209 pushed by the limiting sleeve 206 can enter between the lower mold 202 and its corresponding limiting member 315. Furthermore, after the nut 312 is injection molded inside the upper lower mold 202 to form the nut insert, the injection molding machine controller will control the second electric push rod 207 to pull the limiting sleeve 206 back to its original position. This stops the limiting sleeve 206 from pressing and limiting the lower mold 202 below, preventing it from blocking the outlet of the feeding groove 208. The remaining spare nut 209 inside the feeding groove 208 can then descend to one side of the limiting sleeve 206, allowing the limiting sleeve 206 to push this spare nut 209 to feed the feeding assembly during the next operation. Meanwhile, after the lower mold 202 loses its pressing and limiting position, it is pulled upward by the first spring 204, causing the lower mold 202 to push the spare nut 209 upward and insert it between the corresponding limiting members 315 of the connecting sleeve 301. Guided by the rounded corners at the end of the limiting member 315, the spare nut 209 rotates until the limiting member 315 is inserted between two adjacent grooves on the spare nut 209. At this point, the outer groove of the spare nut 209 is aligned with the inner groove of the mounting block 314, and the inclined groove 316 on the limiting member 315 is engaged in the annular groove in the middle of the spare nut 209, thus limiting and fixing the spare nut 209. Subsequently, the injection molding machine controller controls the flipping assembly to flip again, causing the nut insert that has been injection molded inside the upper mold 202 to rotate downwards for unloading, and causing the spare nut 209, which was stuck between the limiting members 315, to rotate upwards. During this process, the gear rod 308 meshes with another arc-shaped gear rod 309 and is driven to rotate. The arc-shaped rack 309 drives two first gears 303 to rotate in opposite directions via the gear component 306. The rotation of one of the first gears 303 drives the threaded sleeve 311 to rotate and screw into the interior of the spare nut 209 via the rotating rod 302 and the insert rod 310, sealing the internal cavity of the spare nut 209. Only when the threaded sleeve 311 completely seals the internal threaded cavity of the spare nut 209 will the sealing element 313 on the threaded sleeve 311 push the pressure rod 317 to descend along the inclined slide groove 316. This causes the pressure rod 317 to pull the triangular locking block 318 out of the annular groove in the middle of the spare nut 209, stopping the limiting of the spare nut 209. The pressure rod 317 then descends, gradually disengaging from the sealing element 313, and the triangular locking block 318... When the limit on the spare nut 209 stops, the seal 313 is completely misaligned with the inclined slide 316, and the seal 313 contacts the end of the spare nut 209. At this time, the third spring 320 can push the spare nut 209 and the seal 313 into the interior of the mounting block 314 through the threaded sleeve 311. Since the lower mold 202 rotates to the upper position at this time, the lower mold 202 will descend along the interior of the flipping frame 201 under its own weight (at this time, the lower mold 202 rotated to the lower position will pull the first spring 204 down by its own weight, so the lower mold 202 in the upper position does not need to squeeze the first spring 204 to descend). The descent of the lower mold 202 and the cooperation of the third spring 320 pushing the spare nut 209 and the seal 313 through the threaded sleeve 311...The spare nut 209 passes through the mounting block 314 of the lower mold 202 and enters the mold cavity of the lower mold 202. The seal 313 is inserted into the interior of the mounting block 314 to seal the interior of the mounting block 314 and limit the movement of the spare nut 209, preventing it from retracting into the mounting block 314 under the pressure during injection molding, which would cause injection failure and result in a defective product. It should be noted that when the two arc-shaped toothed rods 309 mesh with the gear rod 308, one is located on the left side of the gear rod 308 and the other is located on the right side of the gear rod 308. After the gear rod 308 is rotated one revolution by the flipping component and meshes with the two arc-shaped toothed rods 309 in sequence, the feeding component automatically resets. It should be noted that the mounting block 314 is fitted with the spare nut 209, nut 312 and seal 313 by an interference fit, so that the spare nut 209, nut 312 and seal 313 can only be inserted into or pass through the mounting block 314 under external force, ensuring the sealing of the fit and preventing molten plastic from seeping in during injection molding.

[0039] It should be noted that the spring force of the third spring 320 should be greater than the frictional resistance generated by the interference fit required for the spare nut 209, nut 312, and seal 313 to pass through the mounting block 314, so as to avoid the spare nut 209 and nut 312 from not being able to reach the set position. Furthermore, after the lower mold 202 rotates upward and the spare nut 209 passes through the mounting block 314 and enters the cavity of the lower mold 202, the second electric push rod 207 pushes the limiting sleeve 206 to feed material onto the lower mold 202 located below, and limits and fixes the flipping frame 201 through the lower mold 202. The first electric push rod 104 retracts and pulls the protective shell 103 towards the support plate 108, so that the protective shell 103 pushes the upper mold 107 down through the heating conveying pipe 106 to cooperate with the lower mold 202. At this time, the inner wall of the upper mold 107 cavity will abut against the end of the spare nut 209 away from the lower mold 202. If the spare nut 209 moves too much due to excessive spring force, the upper mold 107 will squeeze and push the spare nut 209 back to the set position, which will not affect the normal injection molding of the nut insert. When the upper mold 107 and the lower mold 202 are engaged, the upper mold 107 will press the lower mold 202 tightly at the end of the sliding connection of the flip frame 201. At this time, the locking angle bar 321 of the mounting block 314 on the lower mold 202 will be relatively squeezed by the limiting member 315, so that the nut 312 slides along the inside of the mounting block 314 and locks and fixes the sealing member 313, ensuring that the spare nut 209 cannot be displaced and affect the molding quality of the nut insert.

[0040] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the preferred embodiments, while those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0041] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A fully automatic nut insert injection molding machine, characterized in that, include: Injection molding parts and flipping parts, wherein the flipping parts include a flipping assembly and a feeding assembly; The flipping assembly includes a flipping frame (201), which has two lower molds (202) slidably connected inside. The two lower molds (202) are arranged in a mirror symmetrical manner inside the flipping frame (201). A first spring (204) is fixedly installed between the two lower molds (202). Two support rods (205) are fixedly installed inside the flipping frame (201). A limiting sleeve (206) is inserted inside the flipping frame (201). A second electric push rod (207) is fixedly installed inside the limiting sleeve (206). The limiting sleeve (206) abuts against one side of one of the lower molds (202). One end of the limiting sleeve (206) has an inclined surface.

2. The fully automatic nut insert injection molding machine according to claim 1, characterized in that, The injection molding component includes a frame (101), a positioning rod (102) is fixedly installed on the top of the frame (101), a protective shell (103) is slidably connected to the outer wall of the positioning rod (102), a first electric push rod (104) is fixedly installed at the bottom of the protective shell (103), a material box (105) is fixedly installed on one side of the protective shell (103), a heating conveying pipe (106) is fixedly installed inside the protective shell (103), the heating conveying pipe (106) is connected to the material box (105), an upper mold (107) is fixedly installed at the bottom of the heating conveying pipe (106), a support plate (108) is provided on the top of the upper mold (107), the support plate (108) is fixedly installed on the outer wall of the positioning rod (102), and one end of the first electric push rod (104) is fixedly installed on the top of the support plate (108).

3. The fully automatic nut insert injection molding machine according to claim 2, characterized in that, The heating conveying pipe (106) is inserted into the support plate (108). The frame (101) has a feeding trough (208) inside. A spare nut (209) is inserted into the feeding trough (208). The limiting sleeve (206) is slidably connected to the inside of the frame (101). The flipping frame (201) is connected to the inside of the frame (101) by a motor rotation.

4. The fully automatic nut insert injection molding machine according to claim 1, characterized in that, The feeding assembly includes two connecting sleeves (301), which are respectively fixedly installed inside two support rods (205). A rotating rod (302) is rotatably connected inside each of the two connecting sleeves (301). A first gear (303) is fixedly connected to one end of each rotating rod (302) that is close to each other. A second gear (304) meshes with the outer wall of the first gear (303) on one of the rotating rods (302). A positioning member (305) is rotatably connected to the end of the first gear (303) on the other rotating rod (302). The second gear (304) is rotatably connected to one side of the positioning member (305). A gear member (306) is rotatably connected inside the positioning member (305). The positioning member (305) is used to position the relative positions of the first gear (303), the second gear (304), and the gear member (306).

5. The fully automatic nut insert injection molding machine according to claim 4, characterized in that, A positioning sleeve (307) is rotatably connected to one side of the gear component (306). A gear rod (308) is rotatably connected inside the positioning sleeve (307) and the connecting sleeve (301). The positioning sleeve (307) is used to position the relative position of the gear component (306) and the gear rod (308). Two arc-shaped gear rods (309) are fixedly installed on the inner wall of the frame (101). One end of the gear rod (308) meshes with one of the arc-shaped gear rods (309), and the other end of the gear rod (308) meshes with the outer wall of the gear component (306).

6. The fully automatic nut insert injection molding machine according to claim 5, characterized in that, The rotating rod (302) is internally slidably connected to a plug rod (310), and the outer wall of the plug rod (310) is slidably connected to a threaded sleeve (311). The outer wall of the threaded sleeve (311) is connected to a nut (312) by a thread. The outer wall of the threaded sleeve (311) is rotatably connected to a sealing element (313). The outer wall of the sealing element (313) is fitted with an installation block (314). The outer contour of the sealing element (313) is adapted to the inner contour of the installation block (314). The outer contour of the sealing element (313) is the same as the outer contour of the nut (312). The installation block (314) is fixedly installed inside the lower mold (202).

7. The fully automatic nut insert injection molding machine according to claim 6, characterized in that, Each of the two connecting sleeves (301) is fixedly connected to a limiting member (315) at one end away from each other. The limiting member (315) has an inclined groove (316) inside. A pressure rod (317) is inserted into the limiting member (315). The pressure rod (317) is slidably connected inside the inclined groove (316). A triangular block (318) is slidably connected to the outer wall of the pressure rod (317). A return spring (319) is fixedly installed at the bottom of the pressure rod (317). The return spring (319) is fixedly installed inside the limiting member (315).

8. The fully automatic nut insert injection molding machine according to claim 7, characterized in that, The outer wall of the rotating rod (302) is fitted with a third spring (320). One end of the third spring (320) is fixedly installed on the inner wall of the connecting sleeve (301). The end of the third spring (320) away from the first gear (303) abuts against the inner wall of the threaded sleeve (311). The interior of the mounting block (314) is slidably connected with a locking rod (321) in an inclined manner. The limiting member (315) abuts against the outer wall of the locking rod (321).

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