Automobile front ventilated panel injection molding machine

Abstract

The present invention provides an injection molding machine for automobile front ventilated decorative panels, which relates to the technical field of injection molding machines, including: a row of sunken grooves is provided in the middle part of the bottom plate of the upper molding groove of the lower mold, and when a row of vertical poking rods slide downward, a row of sealing cover plates are plugged and matched with a row of sunken grooves; an intermediate driving mechanism is connected between the push-unloading member and the vertical support side shaft of the U-shaped vertical support frame, and the intermediate driving mechanism is used to drive the push-unloading member to rise and fall while the upper mold slides up and down; a force transmission spring is sleeved on a vertical support side shaft of the U-shaped vertical support frame, and the force transmission spring is used to transmit the downward driving force of the upper mold to the intermediate driving mechanism. Through the driving member on the left side, when the upper mold is driven to slide downward, it can push the compressed force transmission spring, and use its downward driving force to assist the push-unloading member to slide downward, so that a row of sealing cover plates are pressed and sealed in a row of sunken grooves, and the sliding gap between a row of horizontal and vertical poking rods and the lower mold is tightly and effectively sealed.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machines, in particular to an injection molding machine for a front ventilated decorative plate of an automobile. Background Art

[0002] As a component of automobile interior, automobile front ventilating panel is usually produced by injection molding. Injection molding machine needs to have high precision, high efficiency and the ability to adapt to complex shape design when manufacturing such parts.

[0003] In order to save the need for an additional telescopic drive device and an additional automatic start-stop telescopic control system for the drive device, some of the ejector and demoulding mechanisms on the existing injection molding machines are configured to be driven in linkage through the upper and lower mold opening and closing driving forces. However, most of these ejector and demoulding mechanisms rely solely on the return springs thereon to implement ejection return and sealing, and cannot utilize the top pressure driving force of the mold docking and closing to implement auxiliary force-added sealing. After all, the rebound driving force of the rebound spring is limited, resulting in the ejector and demoulding mechanism being unable to implement a tight and effective seal on the sliding gap between it and the mold after sliding back and resetting, which may cause material leakage. Summary of the invention

[0004] In view of this, the present invention provides an injection molding machine for automobile front ventilated panels to solve the problem that the demoulding mechanism mostly relies solely on the reset spring thereon to implement push-back and sealing, and cannot use the top pressure driving force of the mold docking and closing to implement auxiliary force sealing, resulting in the ejection demoulding mechanism being unable to implement a tight and effective sealing of the sliding gap between it and the mold after sliding back and resetting.

[0005] The technical solution proposed by the present invention is: an injection molding machine for automobile front ventilated decorative panels, specifically comprising: two ground contact support frames, the top parts of the two ground contact support frames are welded with a U-shaped vertical support frame, and the top parts of the two ground contact support frames are threadedly fastened with a lower mold; an upper mold is slidably installed on the U-shaped vertical support frame;

[0006] A push unloading piece is slidably mounted on the lower die, and a row of sealing cover plates are welded to the top of the push unloading piece; a row of sink grooves is provided in the middle part of the bottom plate of the upper forming groove of the lower die, and when a row of vertical poking rods slide downward, a row of sealing cover plates is plugged and matched with a row of sink grooves;

[0007] An intermediate driving mechanism is connected between the push-unloading part and the vertical support side shaft of the U-shaped vertical support frame. The intermediate driving mechanism is used to drive the push-unloading part to rise and fall while the upper mold is driven to slide up and down; a force transmission spring is mounted on a vertical support side shaft of the U-shaped vertical support frame, and the force transmission spring is used to transmit the downward driving force of the upper mold to the intermediate driving mechanism.

[0008] Furthermore, the top ends of the two vertical support side rods on each side of the two ground-contacting support frames are welded with longitudinal support mounting plates, and the bottom ends of the two vertical support side shafts of the U-shaped vertical support frame are welded and fixed together corresponding to the two longitudinal support mounting plates;

[0009] The bottom side of the U-shaped vertical bracing frame horizontal bracing side rods are symmetrically threaded and hoisted with two hydraulic cylinders.

[0010] Furthermore, the push unloading member is composed of a horizontal support slide bar on the bottom side and a row of vertical poking rods welded at equal intervals to the top of the horizontal support slide bar, a row of sealing cover plates are correspondingly welded to the top of a row of horizontal and vertical poking rods, and a row of vertical poking rods are slidably matched with the middle part of the bottom plate of the lower die forming groove;

[0011] A U-shaped positioning frame is welded at the middle position of the bottom side of the lower mold, and the two ends of the horizontal support slide rod are pushed by springs to slide and cooperate with the two vertical support side rods of the U-shaped positioning frame.

[0012] Furthermore, three ear plates are welded at intervals on both sides of the upper mold near the two vertical support side shafts of the U-shaped vertical support frame, and the U-shaped plug-in frame is installed on the six ear plates through spring pushing and sliding together, and a driving member is installed between two of the three ear plates on each side that are close to each other;

[0013] The driving member is composed of a shaft ring and a rectangular plug block welded together. The head ends of the two longitudinal support rods of the U-shaped plug frame correspond to the two rectangular plug blocks for through-plugging cooperation, and the two shaft rings correspond to the two vertical support side shafts of the two U-shaped vertical support frames for sliding cooperation.

[0014] Furthermore, the intermediate driving mechanism includes a cross-bracing driving rod, a connecting rod, a square sliding sleeve, a pull rod and a driving ring, and a sliding ring driving assembly. Two U-shaped track frames are symmetrically welded on the bottom side of the lower mold, and two cross-bracing driving rods are slidably installed on the two U-shaped track frames. A square sliding sleeve is welded on the tail end of the cross-bracing driving rod, and the square sliding sleeve is slidably matched with the U-shaped track frame.

[0015] Two connecting rods which are arranged obliquely toward each other are rotatably connected between the two square sliding sleeves and the middle part of the cross-bracing sliding rod.

[0016] Furthermore, the two vertical support side shafts of the U-shaped vertical support frame are respectively slidably mounted with a driving ring and a slip ring driving assembly, wherein the slip ring driving assembly as a whole is composed of two upper and lower slip rings and a vertical support connecting rod welded between the two slip rings;

[0017] Two pull rods which are arranged obliquely toward each other are rotatably connected between the driving ring, the lower side sliding ring and the head ends of the two horizontal support driving rods.

[0018] Furthermore, the force transmission spring is located at the top of the driving ring, and when the upper mold slides down, the driving member corresponding to the position of the driving ring is pressed into contact with the force transmission spring, and when the upper mold slides up, the driving member corresponding to the position of the slip ring driving assembly is in contact with the upper slip ring.

[0019] Furthermore, two L-shaped support rods are symmetrically welded on the two longitudinal support rods of the U-shaped insertion frame, and two insertion shafts are symmetrically welded at the head ends of the two L-shaped support rods;

[0020] Two shaft sleeves are symmetrically welded on both sides of the top of the upper mold near the ear plate, and the bottom sections of the piston rods of the two hydraulic cylinders are correspondingly plug-fitted with the two shaft sleeves, and the two plug-in shafts are plug-fitted through the two shaft sleeves and the bottom sections of the two piston rods.

[0021] Furthermore, the intermediate driving mechanism includes a horizontal support driving rod, a connecting rod, a square sliding sleeve, a pull rod and a slip ring driving assembly, wherein the slip ring driving assembly as a whole is composed of two upper and lower slip rings and a vertical support connecting rod welded between the two slip rings, wherein the two slip rings are both slidably matched with a vertical support side shaft of a U-shaped vertical support frame;

[0022] A U-shaped track frame is welded on the bottom side of the lower mold, a cross-bracing driving rod is slidably mounted on the U-shaped track frame, a square sliding sleeve is welded on the tail end of the cross-bracing driving rod, the square sliding sleeve is slidably matched with the U-shaped track frame, and a connecting rod is rotatably connected between the lower side sliding ring and the middle part of the cross-bracing sliding rod;

[0023] The force transmission spring is located at the top end of the lower slip ring, and when the upper die slides down, the driving member corresponding to the position of the slip ring driving assembly is pressed against the force transmission spring, and when the upper die slides up, the driving member corresponding to the position of the slip ring driving assembly is pressed against the upper slip ring.

[0024] The automobile front ventilated panel injection molding machine provided by the present invention has the following beneficial effects:

[0025] The present invention, through the driving member on the left side, when the upper mold is driven to slide downward, can push the compression force transmission spring, implement downward pressure and push the driving ring, and use its downward driving force to assist the push and unloading parts to slide downward, so as to press and seal a row of sealing cover plates in a row of sink grooves, and implement tight and effective sealing on the sliding gap between a row of horizontal and vertical poking rods and the lower mold, avoiding relying solely on the spring on the U-shaped positioning frame to perform rebound sealing on the sliding gap, resulting in insufficient compression sealing force and leakage. Compared with the prior art, the sealing effect of the sliding gap is better.

[0026] In addition, through the power transmission of the slip ring drive assembly and in cooperation with the spring on the U-shaped positioning frame, when the upper die is driven to slide up and down to dock and separate from the lower die, it can also drive the ejection and unloading member to lift and extend. This eliminates the trouble of manually exerting additional force to lift and eject and lower and reset the ejection and unloading member before and after each demolding operation. The operation is convenient and time-saving. Moreover, since the ejection and unloading member is driven by the upper die to automatically expand and contract and slide, it is possible to save the additional configuration of a power device for the ejection and unloading member and an automated control system for the power device, which helps to simplify the overall manufacturing cost of the molding machine.

[0027] In addition, the two insertion shafts are fixedly connected to the U-shaped insertion frame through two L-shaped support rods. This enables the U-shaped insertion frame to synchronously drive the two insertion shafts to be inserted and removed from the two shaft sleeves when sliding back and forth to tighten and loosen the two driving members and the upper die, thus completing the tightening and loosening of the entire upper die with the two piston rods and the two driving members at one time. This eliminates the trouble of tightening and disassembling the upper die by operating the two insertion shafts and the U-shaped insertion frame step by step in sequence, which helps to improve the disassembly, replacement, and installation efficiency of the upper die.

[0028] In addition, the intermediate drive mechanism of the second embodiment includes a set of compound crank-slider drive mechanisms composed of a horizontal support drive rod, a pull rod, a connecting rod, an ejection and unloading member, and a slip ring drive assembly. The set of compound crank-slider drive mechanisms in this embodiment, through the rational layout of its components and the optimization of the transmission connection relationship between its components, simultaneously has the functions of controlling the ejection and demolding of the ejection and unloading member and the return and sealing. Compared with the first embodiment, it saves a horizontal support drive rod, a connecting rod, a pull rod, and a drive ring. Under the premise of achieving the same equivalent functions, it greatly simplifies the overall structure of the molding machine and reduces the manufacturing difficulty and consumables of the molding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0030] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0031] In the drawings:

[0032] Figure 1 The front-side overall structure schematic diagram of the first embodiment of the present invention is shown;

[0033] Figure 2 The bottom-side overall structure schematic diagram of the first embodiment of the present invention is shown;

[0034] Figure 3 The rear-side overall structure schematic diagram of the first embodiment of the present invention is shown;

[0035] Figure 4A schematic diagram of the upper mold structure of the first embodiment of the present invention is shown;

[0036] Figure 5 A schematic diagram of the lower mold structure of the first embodiment of the present invention is shown;

[0037] Figure 6 A schematic diagram of the location of the sink opening in the first embodiment of the present invention is shown;

[0038] Figure 7 A schematic diagram of the structure of the cross-bracing driving rod according to the first embodiment of the present invention is shown;

[0039] Figure 8 A schematic diagram of the push-unloading structure of the material part in the first embodiment of the present invention is shown;

[0040] Fig. 9 A schematic diagram of the overall front structure of the second embodiment of the present invention is shown;

[0041] Fig.10 A schematic diagram of the overall bottom structure of the second embodiment of the present invention is shown;

[0042] Fig.11 A schematic diagram of the structure of the cross-bracing driving rod according to the second embodiment of the present invention is shown;

[0043] Reference numerals list

[0044] 1. Lower die; 101. U-shaped positioning frame; 102. U-shaped track frame; 103. Sink;

[0045] 2. upper die; 201. ear plate; 202. driving member; 203. shaft sleeve;

[0046] 3. Ground support frame; 301. Vertical support mounting plate; 302. U-shaped vertical support frame; 303. Drive ring; 304. Slip ring drive assembly;

[0047] 4. U-shaped insert frame; 401. L-shaped support rod; 402. insert shaft;

[0048] 5. Hydraulic cylinder; 501. Piston rod;

[0049] 6. horizontal support driving rod; 601. connecting rod; 602. square sliding sleeve; 603. pull rod;

[0050] 7. Pushing and unloading of materials; 701. Horizontal support slide bar; 702. Vertical poking rod; 703. Sealing cover plate; 8. Force transmission spring. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0052] For the convenience of explanation, the length direction of the bottom end cross brace side rod of the ground-contacting support frame 3 is marked as the left-right direction, and the width direction is marked as the front-back direction.

[0053] Please refer to Figures 1 to 11 , Embodiment 1:

[0054] The present invention provides an injection molding machine for a front ventilated decorative panel of an automobile, comprising: two ground-contacting support frames 3, the top parts of the two ground-contacting support frames 3 are welded with a U-shaped vertical support frame 302, and the top parts of the two ground-contacting support frames 3 are fastened with a lower mold 1 by threads; an upper mold 2 is slidably mounted on the U-shaped vertical support frame 302;

[0055] Among them, a push-pull unloading piece 7 is slidably installed on the lower mold 1, and a row of sealing cover plates 703 are welded to the top of the push-pull unloading piece 7; a row of sink grooves 103 are opened in the middle part of the bottom plate of the molding groove on the lower mold 1, and when a row of vertical poking rods 702 slide downward, a row of sealing cover plates 703 are plugged into and matched with a row of sink grooves 103; an intermediate driving mechanism is connected between the push-pull unloading piece 7 and the vertical support side shaft of the U-shaped vertical support frame 302, and the intermediate driving mechanism is used to drive the push-pull unloading piece 7 to rise and fall and slide while the upper mold 2 slides up and down; a vertical support side shaft on the U-shaped vertical support frame 302 is provided with a force transmission spring 8, and the force transmission spring 8 is used to transmit the downward driving force of the upper mold 2 to the intermediate driving mechanism.

[0056] Preferably, the top parts of the two vertical support side bars on each side of the two ground-contacting support frames 3 are welded with longitudinal support mounting plates 301, and the bottom ends of the two vertical support side shafts of the U-shaped vertical support frame 302 are welded and fixed together corresponding to the two longitudinal support mounting plates 301; the bottom sides of the horizontal support side bars of the U-shaped vertical support frame 302 are symmetrically threadedly hoisted with two hydraulic cylinders 5;

[0057] The two hydraulic cylinders 5 are used to telescopically drive the upper mold 2 to slide up and down to dock with the lower mold 1, seal, assemble and separate.

[0058] Preferably, the push unloading part 7 is composed of a horizontal support slide bar 701 on the bottom side and a row of vertical poking rods 702 welded to the top of the horizontal support slide bar 701 at equal intervals, a row of sealing cover plates 703 are correspondingly welded to the top of a row of horizontal and vertical poking rods 702, and a row of vertical poking rods 702 slide through the middle part of the bottom plate of the forming groove of the lower mold 1 to slide in cooperation; a U-shaped positioning frame 101 is welded to the middle position of the bottom side of the lower mold 1, and the two ends of the horizontal support slide bar 701 slide in cooperation with the two vertical support side rods of the U-shaped positioning frame 101 through spring pushing.

[0059] Preferably, three ear plates 201 are welded at intervals on both sides of the two vertical support side shafts of the upper mold 2 near the U-shaped vertical support frame 302, and the U-shaped plug-in frame 4 is installed on the six ear plates 201 through spring pushing and sliding, and a driving member 202 is installed between two of the three ear plates 201 on each side that are close to each other; the driving member 202 is composed of a shaft ring and a rectangular plug block welded together, the head end parts of the two longitudinal support plug rods of the U-shaped plug frame 4 correspond to the two rectangular plug blocks through the plug-in, and the two shaft rings correspond to the two vertical support side shafts of the two U-shaped vertical support frames 302 for sliding cooperation;

[0060] The U-shaped insert frame 4 is used to insert and position the two driving components 202 at the left and right sides of the upper mold 2.

[0061] Preferably, the intermediate driving mechanism includes a cross-bracing driving rod 6, a connecting rod 601, a square sleeve 602, a pull rod 603 and a driving ring 303, and a slip ring driving assembly 304. Two C-shaped track frames 102 are symmetrically welded on the bottom side of the lower mold 1, and two cross-bracing driving rods 6 are installed on the two C-shaped track frames 102 for sliding toward each other. A square sleeve 602 is welded to the rear end of the cross-bracing driving rod 6, and the square sleeve 602 is slidingly matched with the C-shaped track frame 102; two connecting rods 601 arranged obliquely toward each other are rotatably connected between the two square sleeves 602 and the middle part of the cross-bracing sliding rod 701.

[0062] Preferably, a driving ring 303 and a slip ring driving assembly 304 are respectively slidably mounted on the two vertical support side shafts of the U-shaped vertical support frame 302, wherein the slip ring driving assembly 304 as a whole is composed of two upper and lower slip rings and a vertical support connecting rod welded between the two slip rings; two pull rods 603 arranged obliquely toward each other are rotatably connected between the driving ring 303 and the lower side slip ring and the head ends of the two horizontal support driving rods 6;

[0063] The left side cross-bracing driving rod 6, the rear side pull rod 603 and the push-pull unloading member 7 together form a crank slider mechanism, through which the left side cross-bracing driving rod 6 sliding to the left can push and drive the push-pull unloading member 7 to slide downward, pressing a row of sealing cover plates 703 to seal in a row of sink grooves 103; the right side cross-bracing driving rod 6, the front side pull rod 603 and the push-pull unloading member 7 together form a crank slider mechanism, through which the right side cross-bracing driving rod 6 sliding to the right can push and drive the push-pull unloading member 7 to slide upward to eject the molded injection molded product, and the springs on the two vertical bracing side rods of the U-shaped positioning frame 101 are used for rebounding to drive the push-pull unloading member 7 to slide down and reset;

[0064] The left cross-brace drive rod 6, the left connecting rod 601 and the drive ring 303 are connected together to form a crank slider mechanism, through which the drive ring 303 can slide downward to drive the left cross-brace drive rod 6 to slide to the left; the right cross-brace drive rod 6, the right connecting rod 601 and the slip ring drive assembly 304 are connected together to form a crank slider mechanism, through which the slip ring drive assembly 304 can slide upward to drive the right cross-brace drive rod 6 to slide to the right.

[0065] Preferably, the force transmission spring 8 is located at the top of the driving ring 303, and when the upper mold 2 slides down, the driving member 202 corresponding to the position of the driving ring 303 presses against the force transmission spring 8, and when the upper mold 2 slides up, the driving member 202 corresponding to the position of the slip ring driving assembly 304 abuts against the upper slip ring;

[0066] Through the driving member 202 on the left side, when the upper mold 2 is driven to slide downward, the compression force transmission spring 8 can be pushed to push the driving ring 303 downward, and the downward driving force thereof is used to assist the upward pushing of the unloading member 7, so that a row of sealing cover plates 703 are pressed and sealed in a row of sink grooves 103, and the sliding gap between a row of horizontal and vertical poking rods 702 and the lower mold 1 is tightly and effectively sealed, so as to avoid relying solely on the spring on the U-shaped positioning frame 101 to rebound and seal the sliding gap, resulting in insufficient compression and sealing force and material leakage. Compared with the prior art, the sealing effect of the sliding gap is better;

[0067] Through the driving member 202 on the right side, when the upper die 2 is driven to slide upward, the upper sliding ring can be pushed upward, and the ejector unloading member 7 can be driven to slide upward and eject. Furthermore, through the power transmission of the sliding ring driving assembly 304 and in cooperation with the spring on the U-shaped positioning frame 101, when the upper die 2 is driven to slide up and down to dock with and separate from the lower die 1, the ejector unloading member 7 can be driven to lift and stretch. This saves the trouble of manually exerting extra force to push the ejector unloading member 7 upward and eject and lower it back to its original position before and after each demoulding operation. The operation is convenient and time-saving. Moreover, the ejector unloading member 7 is driven by the upper die 2 to automatically stretch and slide, which can save the additional configuration of a power device for the ejector unloading member 7 and an automated control system for the power device, helping to simplify the overall manufacturing cost of the molding machine.

[0068] Preferably, two L-shaped support rods 401 are symmetrically welded to the two longitudinal support rods of the U-shaped insertion frame 4, and two insertion shafts 402 are symmetrically welded to the first ends of the two L-shaped support rods 401; two shaft sleeves 203 are symmetrically welded to the two sides of the top end of the upper die 2 near the ear plate 201, and the bottom sections of the piston rods 501 of the two hydraulic cylinders 5 are correspondingly inserted and matched with the two shaft sleeves 203, and the two insertion shafts 402 are inserted through and matched with the two shaft sleeves 203 and the bottom sections of the two piston rods 501;

[0069] The two insertion shafts 402 can insert and position the two piston rods 501 and the two shaft sleeves 203 together, connecting and positioning the two piston rods 501 and the upper die 2. Moreover, the two insertion shafts 402 are fixedly connected to the U-shaped insertion frame 4 through the two L-shaped support rods 401. This enables the U-shaped insertion frame 4 to synchronously drive the two insertion shafts 402 to insert and extract from the two shaft sleeves 203 when sliding back and forth to tighten or loosen the two driving members 202 and the upper die 2, completing the tightening and loosening of the entire upper die 2 with the two piston rods 501 and the two driving members 202 at one time, saving the trouble of disassembling and assembling the upper die 2 by operating the two insertion shafts 402 and the U-shaped insertion frame 4 step by step in sequence, and helping to improve the disassembly, replacement, and efficiency of the upper die 2.

[0070] On the basis of Embodiment 1, Embodiment 2 is as Figures 9 to 11 shown:

[0071] The present invention proposes an injection molding machine for automobile front ventilated decorative panels, which also includes: an intermediate driving mechanism including a horizontal support driving rod 6, a connecting rod 601, a square sliding sleeve 602, a pull rod 603 and a slip ring driving assembly 304, wherein the slip ring driving assembly 304 is composed of two upper and lower slip rings and a vertical support connecting rod welded between the two slip rings, wherein the two slip rings are both slidably matched with a vertical support side shaft of a U-shaped vertical support frame 302; a U-shaped track frame 102 is welded on the bottom side of the lower mold 1, and a horizontal support is slidably installed on the U-shaped track frame 102. The supporting driving rod 6 and the rear end of the horizontal supporting driving rod 6 are welded with a square sliding sleeve 602, the square sliding sleeve 602 is slidably matched with the U-shaped track frame 102, and a connecting rod 601 is rotatably connected between the lower side sliding ring and the middle part of the horizontal supporting sliding rod 701; the force transmission spring 8 is located at the top of the lower side sliding ring, and the driving member 202 corresponding to the position of the slip ring driving assembly 304 is pressed against the force transmission spring 8 when the upper mold 2 slides down, and the driving member 202 corresponding to the position of the slip ring driving assembly 304 is pressed against the upper side slip ring when the upper mold 2 slides up;

[0072] The cross-bracing driving rod 6, the pulling rod 603 and the pushing and unloading member 7 are connected together to form a crank slider mechanism, through which the cross-bracing driving rod 6 sliding to the right can push and drive the pushing and unloading member 7 to slide upward to eject the molded injection molded product, and the springs on the two vertical supporting side rods of the U-shaped positioning frame 101 are used for rebounding to drive the pushing and unloading member 7 to slide down and reset; the cross-bracing driving rod 6, the connecting rod 601 and the slip ring driving assembly 304 are connected together to form a crank slider mechanism, through which the slip ring driving assembly 304 sliding upward can drive the cross-bracing driving rod 6 to slide to the right;

[0073] When the upper die 2 is driven to slide downward, the compression force transmission spring 8 can be pushed by the driving member 202 on the right side, and the slip ring on the lower side can be pushed downward, and the push-unloading member 7 can be pushed downward by using its downward driving force, so that a row of sealing cover plates 703 are pressed and sealed in a row of sink grooves 103, and the sliding gap between a row of horizontal and vertical poking rods 702 and the lower die 1 is tightly and effectively sealed; when the upper die 2 is driven to slide upward, the slip ring on the upper side and the slip ring driving assembly 304 can be lifted and pushed, and the push-unloading member 7 can be driven to slide upward and ejected;

[0074] The intermediate driving mechanism of the first embodiment includes two sets of composite crank slider driving mechanisms connected by two cross-bracing driving rods 6, two connecting rods 601, two pull rods 603, the ejector 7 and the driving ring 303 and the slip ring driving assembly 304, and the two sets of composite driving mechanisms are respectively used to control the ejection and return sealing of the ejector 7, while the intermediate driving mechanism of this embodiment includes one cross-bracing driving rod 6, one pull rod 603, one connecting rod 601, the ejector 7 and the slip ring driving assembly 304. A composite crank slider drive mechanism. The composite crank slider drive mechanism of this embodiment has the functions of controlling the ejection and demolding of the ejector 7 and the return seal by rationalizing the layout of its components and optimizing the transmission connection relationship between its components. Compared with the first embodiment, one cross-bracing drive rod 6, one connecting rod 601, one pull rod 603 and a drive ring 303 are eliminated, so that under the premise of achieving the same equivalent functions, the overall structure of the molding machine is greatly simplified, and the manufacturing difficulty and consumables of the molding machine are reduced.

[0075] Working principle of embodiment 1: two hydraulic cylinders 5 are used to telescopically drive the upper mold 2 to slide up and down, dock with the lower mold 1, seal, combine and separate, the U-shaped plug-in frame 4 is used to plug and position the two driving members 202 on the left and right sides of the upper mold 2, and the two plug-in shafts 402 can plug and position the two piston rods 501 and the two shaft sleeves 203 together, and connect and position the two piston rods 501 and the upper mold 2, and the two plug-in shafts 402 are fixedly connected to the U-shaped plug-in frame 4 through two L-shaped support rods 401, so that when the U-shaped plug-in frame 4 slides back and forth to tighten the two driving members 202 and the upper mold 2, the two plug-in shafts 402 and the two shaft sleeves 203 can be driven to pull and tighten synchronously, and the tightening of the upper mold 2 as a whole and the two piston rods 501 and the two driving members 202 can be completed at one time;

[0076] The left side cross-bracing driving rod 6, the rear side pulling rod 603 and the pushing and unloading member 7 together constitute a crank slider mechanism, through which the left side cross-bracing driving rod 6 sliding to the left can push and drive the pushing and unloading member 7 to slide downward, pressing a row of sealing cover plates 703 to seal in a row of sink grooves 103; the right side cross-bracing driving rod 6, the front side pulling rod 603 and the pushing and unloading member 7 together constitute a crank slider mechanism, through which the right side cross-bracing driving rod 6 sliding to the right can push and drive the pushing and unloading member 7 to slide upward to eject the molded injection molded product. The springs on the two vertical support side rods of the shaped positioning frame 101 are used for rebounding to drive the push unloading material 7 to slide down and reset; the left side cross support driving rod 6, the left side connecting rod 601 and the driving ring 303 are connected together to form a crank slider mechanism, through which the driving ring 303 can be slid downward to drive the left side cross support driving rod 6 to slide to the left; the right side cross support driving rod 6, the right side connecting rod 601 and the slip ring driving assembly 304 are connected together to form a crank slider mechanism, through which the slip ring driving assembly 304 can be slid upward to drive the right side cross support driving rod 6 to slide to the right;

[0077] Through the driving member 202 on the left side, when the upper mold 2 is driven to slide downward, it can push the compression force transmission spring 8, and implement downward pressure and pushing on the driving ring 303, and use its downward driving force to assist in sliding down and pushing the push-unloading member 7, so as to press and seal a row of sealing cover plates 703 in a row of sink grooves 103, and implement a tight and effective sealing on the sliding gap between a row of horizontal and vertical poking rods 702 and the lower mold 1; through the driving member 202 on the right side, when the upper mold 2 is driven to slide upward, the upper side of the slip ring can be lifted and pushed, thereby driving the push-unloading member 7 to slide upward and eject.

[0078] In this article, there are a few points to note:

[0079] 1. The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention, and other structures can refer to the general design.

[0080] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0081] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. Automobile front ventilated panel injection molding machine, including: Two ground-contacting support frames (3), the top ends of the two ground-contacting support frames (3) being welded with a U-shaped vertical support frame (302), and the top ends of the two ground-contacting support frames (3) being fastened with a lower mold (1) by threads; an upper mold (2) being slidably mounted on the U-shaped vertical support frame (302); The invention is characterized in that a push-pushing unloading member (7) is slidably mounted on the lower die (1), and a row of sealing cover plates (703) are welded to the top of the push-pushing unloading member (7); a row of sink grooves (103) are provided in the middle part of the bottom plate of the upper molding groove of the lower die (1), and when a row of vertical poking rods (702) slide downward, a row of sealing cover plates (703) are plugged into and matched with a row of sink grooves (103); An intermediate driving mechanism is connected between the push-unloading member (7) and the vertical support side shaft of the U-shaped vertical support frame (302), and the intermediate driving mechanism is used to drive the push-unloading member (7) to rise and fall while the upper mold (2) is driven to slide up and down; a force transmission spring (8) is sleeved on a vertical support side shaft of the U-shaped vertical support frame (302), and the force transmission spring (8) is used to transmit the downward driving force of the upper mold (2) to the intermediate driving mechanism; The push unloading member (7) is composed of a horizontal support slide bar (701) on the bottom side and a row of vertical poking rods (702) welded to the top of the horizontal support slide bar (701) at equal intervals, a row of sealing cover plates (703) are correspondingly welded to the top of the row of horizontal and vertical poking rods (702), and the row of vertical poking rods (702) are slidably matched with the middle part of the bottom plate of the forming groove of the lower mold (1); a U-shaped positioning frame (101) is welded to the middle position of the bottom side of the lower mold (1), and the two ends of the horizontal support slide bar (701) are slidably matched with the two vertical support side rods of the U-shaped positioning frame (101) through spring push; Three ear plates (201) are welded at intervals on both sides of the upper mold (2) near the two vertical support side shafts of the U-shaped vertical support frame (302); a U-shaped plug-in frame (4) is installed on the six ear plates (201) through spring pushing and sliding; a driving member (202) is installed between two of the three ear plates (201) on each side that are close to each other; the driving member (202) is composed of a shaft ring and a rectangular plug-in block welded together; the head end parts of the two longitudinal support plug rods of the U-shaped plug-in frame (4) are correspondingly inserted and matched with the two rectangular plug-in blocks, and the two shaft rings are correspondingly slidably matched with the two vertical support side shafts of the two U-shaped vertical support frames (302); The intermediate driving mechanism comprises a cross-bracing driving rod (6), a connecting rod (601), a square sliding sleeve (602), a pulling rod (603), a driving ring (303), and a sliding ring driving assembly (304); two U-shaped track frames (102) are symmetrically welded to the bottom side of the lower mold (1); two cross-bracing driving rods (6) are slidably mounted on the two U-shaped track frames (102) in a manner of facing each other; a square sliding sleeve (602) is welded to the rear end of the cross-bracing driving rod (6); the square sliding sleeve (602) and the U-shaped track frame (102) are slidably matched; two connecting rods (601) arranged in an inclined manner in a manner of facing each other are rotatably connected between the two square sliding sleeves (602) and the middle part of the cross-bracing sliding rod (701); The two vertical support side shafts of the U-shaped vertical support frame (302) are respectively slidably mounted with a driving ring (303) and a slip ring driving assembly (304), wherein the slip ring driving assembly (304) as a whole is composed of two upper and lower slip rings and a vertical support connecting rod welded between the two slip rings; two pull rods (603) arranged obliquely toward each other are rotatably connected between the driving ring (303) and the lower side slip ring and the head ends of the two horizontal support driving rods (6); The force transmission spring (8) is located at the top of the drive ring (303), and when the upper die (2) slides down, the drive member (202) corresponding to the position of the drive ring (303) is in pressing contact with the force transmission spring (8), and when the upper die (2) slides up, the drive member (202) corresponding to the position of the slip ring drive assembly (304) is in abutting contact with the slip ring on the upper side.

2. The automobile front ventilated panel injection molding machine according to claim 1, characterized in that: The top ends of the two vertical support side rods on each side of the two ground-contacting support frames (3) are welded together with longitudinal support mounting plates (301), and the bottom ends of the two vertical support side shafts of the U-shaped vertical support frame (302) are welded and fixed together corresponding to the two longitudinal support mounting plates (301); Two hydraulic cylinders (5) are symmetrically threadedly mounted on the bottom side of the transverse bracing side rods of the U-shaped vertical bracing frame (302).

3. The automobile front ventilated panel injection molding machine according to claim 2, characterized in that: Two L-shaped support rods (401) are symmetrically welded on two longitudinal support rods of the U-shaped insertion frame (4), and two insertion shafts (402) are symmetrically welded at the head ends of the two L-shaped support rods (401); Two shaft sleeves (203) are symmetrically welded at the top of the upper die (2) near the two sides of the ear plate (201), and the bottom sections of the piston rods (501) of the two hydraulic cylinders (5) are correspondingly plugged into the two shaft sleeves (203), and the two plug shafts (402) are plugged through the two shaft sleeves (203) and the bottom sections of the two piston rods (501).

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