Vertical injection molding machine with auxiliary discharging structure

Abstract

The vertical injection molding machine with the auxiliary discharging structure comprises an injection molding machine structure, the injection molding machine structure comprises a base, a lifting column, a conveying pipe, a material storage barrel, a material collecting groove and a finished product material box, and a double-station switching mechanism is arranged on the base; the double-station switching mechanism comprises a bottom plate, an outer side plate, an inner side plate, a conveying belt, a first station plate, a moving plate and a second station plate, a sliding rod and a connecting plate are slidably connected to the moving plate, a cam groove is formed in the inner side plate, a fixing bolt is arranged on the connecting plate, and mold opening and closing discharging mechanisms are arranged on the surfaces of the first station plate and the second station plate; the mold opening and closing discharging mechanism comprises a mounting plate, a mounting groove, a fixing rod, a mold base, a sliding block, a connecting rod, a square rod, a control rod, a top plate and a spring. According to the device, the double-station sliding switching structure is matched with the lower mold automatic opening and closing mechanism, automatic demolding and discharging of injection molding products can be completed on the premise of not making contact with a high-temperature mold cavity, and the operation safety, the demolding efficiency and the continuous operation capacity of equipment are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding equipment, and in particular relates to a vertical injection molding machine with an auxiliary blanking structure. Background Art

[0002] Vertical injection molding machines, a common piece of equipment in the injection molding field, are widely used in the batch processing of various plastic parts. They are particularly well-suited for processes requiring precise positioning of inserts before injection molding. Traditional vertical injection molding machines typically complete injection molding by closing the upper and lower molds. Subsequently, mold separation and finished product removal must be performed manually or by simple mechanical devices.

[0003] The existing vertical injection molding machines still have several deficiencies in their structural design. First, after injection molding, they often rely on manual intervention to insert their arms into the equipment to remove the product, which not only poses a major safety hazard, but is also very likely to cause burns to the operator in a high-temperature environment, affecting the operator's personal safety. Second, there is a lack of effective auxiliary structural support during the product demolding process, and mold separation and finished product shedding are often not smooth enough, resulting in low demolding efficiency and a high rate of finished product breakage, which seriously affects production rhythm and yield rate. Third, most injection molding machines still use a single-station alternating operation mode, which is limited by the cycle processes of mold closing, injection molding, cooling, and demolding, and cannot effectively perform staggered synchronous operations of injection molding and demolding, resulting in increased equipment idling time and restricting overall production capacity. Summary of the Invention

[0004] In response to the problems existing in the prior art, the purpose of the present invention is to provide a vertical injection molding machine with an auxiliary unloading structure, which can achieve a reasonable structure, high safety, and the ability to quickly and automatically demold the product. It also has a double-station alternating operation function, thereby improving the injection molding efficiency and safety of the vertical injection molding machine, which has become a technical problem that needs to be urgently solved in this field.

[0005] To achieve the above object, the present invention provides the following technical solutions: A vertical injection molding machine with an auxiliary blanking structure includes an injection molding machine structure, wherein the injection molding machine structure includes a base, lifting columns are evenly installed at the four corners of the base surface, and upper molds are installed on the tops of the four lifting columns; A double-station switching mechanism is provided on the upper surface of the base, and the double-station switching mechanism includes a bottom plate fixed on the upper surface of the base, outer plates are symmetrically provided on both sides of the upper surface of the bottom plate, inner plates are symmetrically provided on the upper surface of the bottom plate, the inner plates are parallel to the outer plates, and the inner plates are lower than the outer plates, the first station plates are slidably installed on the top of the two outer plates, and the movable plates are slidably installed on the top of the two inner plates; Slide rods are symmetrically installed on both sides of the movable plate surface for vertical sliding movement, and a second work station plate is fixed on the top of the four slide rods. The second work station plate and the first work station plate are both installed with a mold opening and closing blanking mechanism; The mold opening and closing blanking mechanism is used to control the opening and closing of the lower mold to realize the falling off of the finished product.

[0006] Furthermore, a conveying pipe is installed on the top of the four lifting columns, a material storage barrel is installed on the front upper side of the conveying pipe, protective isolation plates are installed on both sides of the upper surface of the base, a collection trough is opened on the front side of the upper surface of the base, a finished material box is slidably installed inside the collection trough, a gear lever is rotatably installed at the lower front side of the base, and the finished material box is fixed by the rotation of the gear lever.

[0007] Furthermore, T-shaped tracks are provided on the tops of the outer and inner plates, hollow grooves are provided on the surface of the movable plate, a connecting plate is installed between the bottoms of the two sliding rods on the same side, the connecting plate is placed under the movable plate, and conveyor belts are installed on the inner sides of the two outer plates, and the conveyor belts on both sides move synchronously, the two sides of the first workstation plate are respectively connected to the upper side of the conveyor belt, and the two sides of the movable plate are respectively connected to the lower side of the conveyor belt.

[0008] Furthermore, a cam groove is provided on the side where the two inner plates are close to each other, and the cam groove has a structure with high ends and low center. A fixing bolt is provided at the center of the outer side of the connecting plate, and the fixing bolt slides inside the cam groove. When the first work station plate and the second work station plate are staggered and moved to the rear side, they correspond to the upper mold, and when the first work station plate and the second work station plate are staggered and moved to the front side, they are placed directly above the finished material box.

[0009] Furthermore, the mold opening and closing blanking mechanism includes a mounting plate, a mounting groove is provided on the surface of the mounting plate, a fixing rod is symmetrically provided inside the mounting groove, a mold base is symmetrically slidably installed on the inner side of the mounting groove, both of the mold bases slide on the fixing rod, and the two mold bases are combined into a lower mold, a mold groove is provided on the surface of the mold base, a side sealing plate is provided on the side of the mold base facing away from each other, the side sealing plate is placed on the upper surface of the mounting plate, and the side sealing plate covers both sides of the upper surface of the mounting groove.

[0010] Furthermore, a first spring is sleeved on both ends of the surface of the fixed rod, and the first spring applies a force close to the center direction to the mold base. Track grooves are horizontally opened on both sides of the mounting plate, and a slider is slidably installed inside the track groove. The slider is a T-shaped structure with a larger upper part and a smaller lower part.

[0011] Furthermore, the top of the slider is symmetrically hinged with connecting rods, and the ends of the two connecting rods facing away from the slider are respectively hinged on the two mold bases, and positioning grooves are symmetrically provided on the ends of the two sides of the bottom of the two track grooves facing away from each other.

[0012] Furthermore, a square rod is slidably installed at the bottom of the slider, and the square rod passes through the lower surface of the mounting plate. Positioning extension rods are symmetrically provided at both ends of the square rod, and the positioning extension rods are adapted to the internal dimensions of the positioning groove. A control rod is provided on the top of the square rod, and the top of the control rod exceeds the slider. The top of the control rod is not smooth, and there is more than just a top plate. A second spring is sleeved on the surface of the control rod, and the second spring applies up and down thrust to the top plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention sets a double-station switching mechanism, combined with the matching structure of the conveyor belt, T-track, first station plate and second station plate, to achieve automatic alternating switching between injection molding and unloading of the two stations, avoiding the operation mode of workers putting their arms into the interior of the equipment to take out the finished product. While improving the working efficiency, it effectively reduces the risk of burns caused by high temperature contact, thereby improving the operational safety during the use of the equipment.

[0014] The present invention sets a mold opening and closing blanking mechanism, and utilizes the sliding fit, spring return, connecting rod drive and square rod positioning of the mold base structure to automatically separate the lower mold after the injection molding is completed, and the product in the mold groove can naturally fall off into the finished product box; no human intervention is required in the entire demoulding and blanking process, which effectively solves the problems of low demoulding efficiency and high finished product residue rate in existing equipment, reduces the risk of product damage, and improves the finished product yield.

[0015] The present invention combines the two sets of workstations for injection molding and unloading in the same transmission structure by arranging upper and lower layers of conveyor belts with an interlaced structure, and controls the height change of the second workstation plate through the coordinated action of the cam groove and the fixing bolt, so that the double workstations can be quickly switched without stopping the equipment operation, realizing the synchronous operation of mold positioning and unloading operations, reducing the idling waiting time of the equipment, and significantly improving the overall beat and operating efficiency of the injection molding production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a structural schematic diagram of the injection molding machine of the present invention; Figure 3 This is a schematic diagram of the dual-station switching mechanism and mold installation structure of the present invention; Figure 4 This is a schematic structural diagram of the double-station switching mechanism of the present invention; Figure 5 Schematic diagram of the cam groove structure of the present invention; Figure 6 It is a schematic diagram of the structure of the movable plate of the present invention; Figure 7This is a schematic structural diagram of the mold opening and closing blanking mechanism of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the bottom structure; Figure 9 This is a schematic diagram of the cross-sectional structure of the square rod installation of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Injection molding machine structure; 11. Base; 12. Lifting column; 13. Conveying pipe; 14. Storage barrel; 15. Protective isolation plate; 16. Collection trough; 17. Gear lever; 2. Finished product box; 3. Dual-station switching mechanism; 31. Bottom plate; 32. Outer plate; 33. Inner plate; 331. Cam groove; 34. Conveyor belt; 35. First station plate; 36. Moving plate; 361. Hollow groove; 37. Sliding rod; 38. Second station plate; 39. Connecting plate; 310. Fixing bolt; 4. Mold opening and closing blanking mechanism; 41. Mounting plate; 42. Mounting slot; 43. Fixing rod; 44. First spring; 45. Track slot; 451. Positioning slot; 46. Slider; 47. Connecting rod; 48. Square rod; 481. Positioning extension rod; 49. Control rod; 410. Second spring; 411. Top plate; 5. Die base; 51. Die groove; 52. Side sealing plate. DETAILED DESCRIPTION

[0018] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following examples. It should be understood that the following text is only used to describe one or more specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0019] Example 1: See Figure 1-9A vertical injection molding machine with an auxiliary unloading structure includes an injection molding machine structure 1, which includes a base 11. Lifting columns 12 are evenly installed at the four corners of the surface of the base 11, and an upper mold is installed on the top of the four lifting columns 12; a double-station switching mechanism 3 is provided on the upper surface of the base 11, and the double-station switching mechanism 3 includes a bottom plate 31 fixed to the upper surface of the base 11, and outer plates 32 are symmetrically provided on both sides of the upper surface of the bottom plate 31. An inner plate 33 is symmetrically provided on the upper surface of the bottom plate 31, and the inner plate 33 is parallel to the outer plate 32, and the inner plate 33 is lower than the outer plate 32; a first station plate 35 is slidably installed on the top of the two outer plates 32, and a first station plate 35 is slidably installed on the top of the two inner plates 33 There is a movable plate 36; the first work station plate 35 and the movable plate 36 cooperate with the conveyor belt 34 through sliding, and can switch positions alternately before and after the injection molding work to align with the upper mold or with the finished product box 2, thereby realizing the continuous conversion between mold closing injection molding and automatic demoulding and unloading of finished products; sliding rods 37 are symmetrically installed on both sides of the surface of the movable plate 36 for vertical sliding, and the second work station plate 38 is fixed on the top of the four sliding rods 37. The second work station plate 38 and the first work station plate 35 are both installed with a mold opening and closing unloading mechanism 4; the mold opening and closing unloading mechanism 4 is used to control the opening and closing of the lower mold to realize the shedding of the finished product. By cooperating with the double-work station sliding structure, the operator is prevented from manually taking out the material, thereby improving safety and automation.

[0020] See Figure 1-2 , a delivery pipe 13 is installed on the top of the four lifting columns 12, and a storage barrel 14 is installed on the front upper side of the delivery pipe 13 for storing and delivering the raw materials required for injection molding; a spiral delivery rod and a heating device are provided inside the delivery pipe 13 to heat and melt the granular raw materials and push them to the injection port of the upper mold; protective isolation plates 15 are installed on both sides of the upper surface of the base 11, and the protective isolation plates 15 are used to isolate the working area and the operation area to prevent high-temperature injection molding or mechanical parts from accidentally injuring the operators; a collection trough 16 is provided on the front side of the upper surface of the base 11, and a finished material box 2 is slidably installed inside the collection trough 16. The finished material box 2 is used to collect the products after the mold falls off; a gear lever 17 is rotatably installed at the lower front side of the base 11, and the gear lever 17 is used in conjunction with the finished material box 2. The finished material box 2 can be stably embedded in the collection trough 16 by rotation positioning to prevent displacement due to vibration during the injection molding process.

[0021] See Figure 1-6, T-shaped tracks are provided on the top of the outer plate 32 and the inner plate 33. The T-shaped tracks are used to limit and guide the first work station plate 35 and the movable plate 36 to ensure that their sliding direction is consistent with the running direction of the conveyor belt 34 and is stable; a hollow groove 361 is opened on the surface of the movable plate 36, and the hollow groove 361 is used to provide a through channel when the finished product falls to prevent the product from being stuck on the surface of the plate; a connecting plate 39 is installed between the bottoms of the two sliding rods 37 on the same side. The connecting plate 39 is placed under the movable plate 36 and its height in the cam groove 331 is limited by cooperating with the fixing bolt 310 The position of the second work station plate 38 changes, realizing the up and down lifting action of the second work station plate 38 during the movement; the inner sides of the two outer plates 32 are installed with conveyor belts 34, and the conveyor belts 34 are linked by a synchronous transmission mechanism, so that the first work station plate 35 and the movable plate 36 located on the upper and lower layers can realize staggered movement; the two sides of the first work station plate 35 are respectively connected to the upper side of the conveyor belt 34, and the two sides of the movable plate 36 are respectively connected to the lower side of the conveyor belt 34. The position switching of the double work station plates is realized through the upper and lower layered interlocking design, which is convenient for pairing with the upper mold and alternating demoulding and unloading actions.

[0022] See Figure 1-6 The two inner plates 33 are each provided with a cam groove 331 on the side close to each other. The cam groove 331 has a structure with high ends and low center, which is used to control the height change of the connecting plate 39 and the structure above it during the sliding process; a fixing bolt 310 is provided at the center of the outer side of the connecting plate 39, and the fixing bolt 310 is slidably installed inside the cam groove 331 to cooperate with the lifting action of the second work station plate 38 during operation; when the first work station plate 35 and the second work station plate 38 are staggered to the rear side, they correspond to the upper mold and can complete the injection molding operation; when the first work station plate 35 and the second work station plate 38 are staggered to the front side, they are placed directly above the finished material box 2 to ensure that the product can smoothly fall into the collecting trough 16 and enter the finished material box 2.

[0023] See Figure 7-9 The mold opening and closing blanking mechanism 4 includes a mounting plate 41, a mounting groove 42 is provided on the surface of the mounting plate 41, and a fixing rod 43 is symmetrically provided inside the mounting groove 42, and the fixing rod 43 is used to guide the reciprocating sliding of the mold base 5; the mold base 5 is symmetrically slidably installed on the inner side of the mounting groove 42, and the two mold bases 5 slide on the fixing rod 43 to form a complete lower mold structure; a mold groove 51 is provided on the surface of the mold base 5, and the mold groove 51 is used to accommodate inserts and fluid plastic for molding operations; a side sealing plate 52 is provided on the side of the mold base 5 that is away from each other, and the side sealing plate 52 is placed on the upper surface of the mounting plate 41, and the side sealing plate 52 covers both sides of the upper surface of the mounting groove 42 to prevent high-temperature plastic from overflowing or impurities from entering the mold cavity during injection molding, thereby improving injection molding quality and equipment cleanliness.

[0024] See Figure 7-9Both ends of the surface of the fixing rod 43 are sleeved with a first spring 44, and the first spring 44 applies a force close to the center direction to the mold base 5, so that the two mold bases 5 remain in a closed state when not in operation, and the mold groove 51 cooperates to form a complete injection cavity; track grooves 45 are horizontally opened on both sides of the mounting plate 41, and a slider 46 is slidably installed inside the track groove 45. The slider 46 has a T-shaped structure with a larger upper part and a smaller lower part. It can slide stably in the track groove 45 and control the opening and closing actions of the mold base 5 in a linkage manner.

[0025] See Figure 7-9 The top of the slider 46 is symmetrically hinged with connecting rods 47, and the ends of the two connecting rods 47 facing away from the slider 46 are respectively hinged on the two mold bases 5. The slider 46 moves back and forth in the track groove 45 to drive the connecting rods 47 to push and pull the two mold bases 5 to realize the opening and closing action; the two ends of the bottom of the two track grooves 45 facing each other are symmetrically provided with positioning grooves 451. The positioning grooves 451 are used to lock the position of the mold base 5 when it is closed, so as to ensure the sealing strength of the mold cavity during the injection molding process.

[0026] See Figure 7-9 A square rod 48 is slidably installed at the bottom of the slider 46, and the square rod 48 passes through the lower surface of the mounting plate 41 to realize the control switching of positioning and release; positioning extension rods 481 are symmetrically provided at both ends of the square rod 48, and the positioning extension rod 481 is adapted to the internal size of the positioning groove 451. When the positioning extension rod 481 is embedded in the positioning groove 451, the mold base 5 can be positioned and fixed in the closed state; a control rod 49 is provided on the top of the square rod 48, and the top of the control rod 49 exceeds the slider 46. The top of the control rod 49 is connected to the top plate 411, and the surface of the control rod 49 is sleeved with a second spring 410. The second spring 410 applies up and down thrust to the top plate 411, so that the rod 48 automatically resets after the release operation and completes the next round of positioning action, thereby ensuring the closing stability and recycling reliability of the mold structure.

[0027] Example 2: See Figure 1-6 In this embodiment, the outer plate 32 is made of 304 stainless steel plate with a thickness of 6 mm to ensure structural strength; the inner plate 33 is made of aluminum alloy profile and is stably installed on both sides of the bottom plate 31 through profile guide rails. T-shaped tracks are processed on the top of the inner and outer plates, and the slide groove width is 12 mm and the depth is 10 mm; the conveyor belt 34 adopts a steel core synchronous belt, which is covered with high-temperature wear-resistant rubber and is equipped with a high-precision stepping motor to achieve synchronous operation; the first workstation plate 35 and the second workstation plate 38 adopt a polytetrafluoroethylene-coated steel plate structure to improve the flatness and thermal stability of the mold installation; the slide rod 37 is a high-hardness chrome-plated shaft, which is matched with a high-strength steel connecting plate 39 and a stainless steel fixing bolt 310 to achieve sliding guidance and height conversion.

[0028] During operation, the stepper motor drives the conveyor belt 34 to run, driving the first work station plate 35 and the second work station plate 38 to slide back and forth synchronously in the upper and lower slides respectively. When the second work station plate 38 is located at the injection molding station, the first work station plate 35 is in the front unloading position, forming a work station alternating structure, avoiding the problem in the traditional structure that personnel need to manually go deep into the equipment to retrieve parts.

[0029] Traditional injection molding equipment typically only has a fixed mold table. After injection molding, operators must manually reach into the mold cavity using clamps or tools to remove the hot product. This not only poses a risk of burns but also reduces operational efficiency. This embodiment utilizes a dual-station staggered movable structure to achieve automatic displacement and station switching, eliminating the need for operators to enter hazardous areas, significantly improving the safety and convenience of the injection molding process.

[0030] Example 3: See Figure 7-9 In this embodiment, the mounting plate 41 in the mold opening and closing blanking mechanism 4 is made of Q235 steel plate with a thickness of 8mm to ensure load-bearing rigidity; the mounting groove 42 has a size of 200mm×100mm, and a stainless steel fixing rod 43 with a diameter of 14mm is symmetrically fixed inside, and a first spring 44 with a rigidity coefficient of 16N / mm is sleeved at both ends; the mold base 5 is precision-machined from alloy steel, and the mold groove 51 is formed by electrospark machining; the two mold bases 5 are fixed with polyimide side sealing plates 52 on the sides facing away from each other to prevent flash material from entering the gap; the track groove 45 has a width of 16mm, and a T-shaped slider 46 is matched inside. Two 60mm long carbon steel connecting rods 47 are hinged on the top of the slider 46 to push the mold base 5 to open and close; a sliding square rod 48 is installed at the lower part of the slider 46, and positioning extension rods 481 are set at both ends of the square rod. The positioning groove 451 has a size of 10mm×10mm and fits tightly; an anti-slip rubber sleeve is provided on the upper surface of the top plate 411 to facilitate force application during operation.

[0031] In actual work, when the second work station plate 38 moves to the front end, the operator presses the top plate 411 with both hands, the control rod 49 drives the square rod 48 to move downward, the positioning extension rod 481 disengages from the positioning groove 451, and the connecting rod 47 drives the two mold bases 5 to separate to both sides under the drive of the slider 46. The formed product falls along the gap between the mold bases 5 to the hollow groove 361, and finally enters the finished product box 2, completing the automatic demolding process.

[0032] Traditional injection molding machine mold bases are typically integrated or comprised of manually disassembled modules. During demolding, operators must manually separate the mold using tools like crowbars, which can lead to finished products sticking to the mold, breakage, or poor material release. This embodiment utilizes a precise linkage structure and a return spring to enable rapid mold reset and separation without intervention, resulting in an efficient and smooth demolding process and significantly improved demolding efficiency.

[0033] Example 4: See Figure 1-6 In this embodiment, the connecting plate 39 is a carbon steel plate with a thickness of 4 mm, which is fixed to the two ends of the bottom of the sliding rod 37 by screws. A threaded hole is provided in the center of the connecting plate to fit the fixing bolt 310. The fixing bolt is made of self-lubricating copper alloy and is slidably embedded in the cam groove 331 of the inner plate 33. The height of the two ends of the cam groove 331 is 5 mm higher than the middle part, and is designed in a standard parabolic curve to achieve smooth lifting and lowering of the second workstation plate 38 during the sliding process; when the conveyor belt 34 is driven back and forth by the driving mechanism, the fixing bolt 310 slides along the cam groove 331, causing the connecting plate 39 and the structure above it to change in height, rising to the highest point when approaching the upper mold, and moving down to the lowest point in the middle section to avoid interference with the first workstation plate 35. It is lifted again when entering the unloading station to align the mold cavity with the material box.

[0034] The above structure realizes seamless connection between the injection molding and blanking stages, so that the first station plate 35 and the second station plate 38 can always maintain an interlaced working state. After the injection molding operation is completed, the blanking action can be carried out immediately, which significantly shortens the non-production time.

[0035] Existing injection molding equipment generally uses a single station to repeat the injection, cooling, demolding, and unloading processes. This causes idle waiting time between processes, resulting in a slow production cycle. This embodiment introduces a dual-station staggered structure with a sliding-lifting coordinated mechanism to achieve synchronous switching between injection and unloading, increase the operation frequency per unit time, and improve the overall operating efficiency of the injection molding equipment.

[0036] The working principle of the present invention is as follows: the granular raw material is placed inside the storage barrel 14, and the material is melted and transported through the spiral conveying rod inside the conveying pipe 13 and the heating device. During operation, the four lifting columns 12 are controlled by the hydraulic cylinder to move downward synchronously, and then the upper and lower molds are merged to realize the injection molding operation. The lower mold is composed of two mold bases 5. The conveying belt 34 is started during operation. Since the first work station plate 35 and the movable plate 36 are respectively installed above and below the conveying belt 34, and are respectively limited by the top track of the outer plate 32 and the inner plate 33, the second work station plate 38 and the movable plate 36 can be controlled to move synchronously in the opposite direction to move to the bottom of the upper mold in a staggered manner. At the same time, since the fixing bolt 310 is placed Inside the cam groove 331, the cam groove 331 is a structure that is high at both ends and low in the middle. Therefore, during the movement of the movable plate 36, the second station plate 38 can change in height along the cam groove 331. When it moves to the center position, the second station plate 38 moves down and is placed under the first station plate 35 to prevent collision. When it moves to the front end or the rear end, the second station plate 38 moves up to the highest point and is at the same height as the first station plate 35, so as to facilitate cooperation with the upper mold for injection molding. After the injection molding is completed, it moves forward out of the range of the lifting column 12 to facilitate loading and unloading. This structure does not require the staff to extend their arms into the interior of the equipment, which can effectively improve safety. At the same time, the switching of the two stations can effectively improve the injection molding efficiency. Due to the thrust exerted by the first spring 44 on the mold base 5, when no force is applied, the two mold bases 5 are closed so that the mold grooves 51 are combined into a complete mold cavity for placing inserts and performing molding. When the two mold bases 5 are closed, the slider 46 can be pushed to the outermost position of the track groove 45 by the connecting rod 47. At this time, the positioning extension rod 481 corresponds to the position of the positioning groove 451, and the upward thrust of the second spring 410 on the top plate 411 is used to make the positioning extension rod 481 cooperate with the positioning groove 451, thereby improving the closing strength of the two mold bases 5, preventing separation due to internal pressure, and ensuring the stability of the equipment. When a single injection molding is completed, it moves to the front side. At this time, you can press the top plate 411 with both hands to move the square rod 48 down, and the positioning extension rod 481 disengages from the positioning groove 451 and slides inward to push the mold base 5 to separate through the two connecting rods 47. At this time, the product that has been formed inside the mold groove 51 will fall through the gap between the two, pass through the hollow groove 361 and fall into the finished product box 2. During the movement, the side sealing plates 52 on both sides cover the edge gaps of the mounting groove 42 to prevent foreign matter from entering. After unloading, release the operation on the top plate 411 to use the first spring 44 and the second spring 410 to reset the equipment for the next injection molding operation. This structure can assist in unloading and demolding of the finished product without contact, prevent high-temperature products from scalding the operator, and achieve rapid unloading.

[0037] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A vertical injection molding machine with an auxiliary unloading structure, comprising an injection molding machine structure (1), characterized in that: The injection molding machine structure (1) comprises a base (11), and lifting columns (12) are evenly installed at the four corners of the surface of the base (11), and upper molds are installed on the tops of the four lifting columns (12); A double-station switching mechanism (3) is provided on the upper surface of the base (11), and the double-station switching mechanism (3) includes a bottom plate (31) fixed on the upper surface of the base (11), outer plates (32) are symmetrically provided on both sides of the upper surface of the bottom plate (31), and inner plates (33) are symmetrically provided on the upper surface of the bottom plate (31), the inner plates (33) are parallel to the outer plates (32), and the inner plates (33) are lower than the outer plates (32), a first station plate (35) is slidably installed on the top of the two outer plates (32), and a movable plate (36) is slidably installed on the top of the two inner plates (33); Slide rods (37) are symmetrically and vertically mounted on both sides of the surface of the movable plate (36), and a second work station plate (38) is fixed on the top of the four slide rods (37). The second work station plate (38) and the first work station plate (35) are both mounted on the surface of a mold opening and closing blanking mechanism (4); The mold opening and closing material removal mechanism (4) is used to control the opening and closing of the lower mold to realize the removal of the finished product.

2. A vertical injection molding machine with an auxiliary unloading structure according to claim 1, characterized in that: A delivery pipe (13) is installed on the top of the four lifting columns (12), a material storage barrel (14) is installed on the front upper side of the delivery pipe (13), protective isolation plates (15) are installed on both sides of the upper surface of the base (11), a collection trough (16) is opened on the front side of the upper surface of the base (11), a finished material box (2) is slidably installed inside the collection trough (16), a gear lever (17) is rotatably installed on the lower front side of the base (11), and the finished material box (2) is fixed by the rotation of the gear lever (17).

3. The vertical injection molding machine with an auxiliary unloading structure according to claim 2, characterized in that: The tops of the outer plate (32) and the inner plate (33) are both provided with T-shaped rails, the surface of the movable plate (36) is provided with a hollow groove (361), a connecting plate (39) is installed between the bottoms of the two sliding rods (37) on the same side, and the connecting plate (39) is placed below the movable plate (36), and a conveyor belt (34) is installed on the inner sides of the two outer plates (32), and the conveyor belts (34) on both sides move synchronously, the two sides of the first station plate (35) are respectively connected to the upper side of the conveyor belt (34), and the two sides of the movable plate (36) are respectively connected to the lower side of the conveyor belt (34).

4. The vertical injection molding machine with an auxiliary unloading structure according to claim 3, characterized in that: A cam groove (331) is provided on the side where the two inner plates (33) are close to each other. The cam groove (331) has a structure with high ends and a low center. A fixing bolt (310) is provided at the center of the outer side of the connecting plate (39). The fixing bolt (310) slides inside the cam groove (331). When the first station plate (35) and the second station plate (38) are moved to the rearmost side in an interlaced manner, they correspond to the upper mold. When the first station plate (35) and the second station plate (38) are moved to the frontmost side in an interlaced manner, they are placed directly above the finished material box (2).

5. The vertical injection molding machine with an auxiliary unloading structure according to claim 1, characterized in that: The mold opening and closing blanking mechanism (4) comprises a mounting plate (41), a mounting groove (42) is provided on the surface of the mounting plate (41), a fixing rod (43) is symmetrically provided inside the mounting groove (42), a mold base (5) is symmetrically slidably installed inside the mounting groove (42), two mold bases (5) slide on the fixing rod (43), and the two mold bases (5) are combined into a lower mold, a mold groove (51) is provided on the surface of the mold base (5), and a side sealing plate (52) is provided on the side of the mold base (5) facing away from each other, and the side sealing plate (52) is placed on the upper surface of the mounting plate (41), and the side sealing plate (52) covers both sides of the upper surface of the mounting groove (42).

6. The vertical injection molding machine with an auxiliary unloading structure according to claim 5, characterized in that: Both ends of the surface of the fixing rod (43) are sleeved with a first spring (44), and the first spring (44) applies a force close to the center direction to the mold base (5). Track grooves (45) are transversely opened on both sides of the mounting plate (41), and a slider (46) is slidably installed inside the track groove (45). The slider (46) has a T-shaped structure with a larger upper part and a smaller lower part.

7. The vertical injection molding machine with an auxiliary unloading structure according to claim 6, characterized in that: The top of the slider (46) is symmetrically hinged with connecting rods (47), and the ends of the two connecting rods (47) facing away from the slider (46) are respectively hinged on the two mold bases (5). The bottoms of the two track grooves (45) are symmetrically provided with positioning grooves (451) at the ends facing away from each other.

8. The vertical injection molding machine with an auxiliary unloading structure according to claim 7, characterized in that: A square rod (48) is slidably installed at the lower part of the slider (46), and the square rod (48) passes through the lower surface of the mounting plate (41). Positioning extension rods (481) are symmetrically provided at both ends of the square rod (48), and the positioning extension rods (481) are adapted to the internal dimensions of the positioning groove (451). A control rod (49) is provided at the top of the square rod (48), and the top of the control rod (49) exceeds the slider (46). The control rod (49) is not smooth and has a top plate (411). A second spring (410) is sleeved on the surface of the control rod (49), and the second spring (410) applies an upward and downward thrust to the top plate (411).

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