A multi-directional side core-pulling demolding device for double-sided pallet injection molds

Abstract

This invention discloses a multi-directional side-pulling demolding device for double-sided pallet injection molds, relating to the field of double-sided pallet injection mold technology. It aims to solve the technical problem of difficult double-sided flat pallet injection molding. The device includes an injection base plate, a side-axis clamping mechanism arranged above the injection base plate, a demolding assembly, and a coating assembly. This invention achieves precise molding and orderly demolding of the double-sided flat pallet injection cavity through the opposing or opposite movement of the horizontal and vertical push plates, utilizing the force of the guide plate on the first slider and the air pressure adjustment of the hollow limiting plate. When moving in opposite directions, a closed cavity is formed through the close contact between the second fixing block and the first vertical slider, ensuring injection accuracy. When moving in opposite directions, the first slider is flush with the first fixing block, avoiding interference with the horizontal push plate and ensuring smooth demolding. This effectively reduces structural defects during pallet molding and surface damage during demolding, improving production efficiency and product quality.

Description

Technical Field

[0001] This invention relates to the field of double-sided pallet injection mold technology, and more specifically, to a multi-directional side core-pulling demolding device for double-sided pallet injection molds. Background Technology

[0002] like Figure 1 The double-sided flat pallet (four-way entry) shown is a logistics support tool with two completely flat panels on both sides. It typically forms a symmetrical structure through bottom reinforcing ribs, support legs, or crossbeams, allowing for alternating use of both sides. Advantages of double-sided flat pallets compared to double-sided mesh pallets include: greater adaptability to different goods, a smooth, gap-free surface, stable support for small items, bulk goods (such as parts, bagged materials), and irregularly shaped items (such as sheets and glass), preventing goods from falling through mesh gaps, a larger contact area with goods, more even stress distribution, and reduced weight on fragile items (such as ceramics and precision instruments). Less susceptible to damage during transport or stacking; superior hygiene and cleanliness: the surface is non-perforated, making it less prone to accumulating dust, water stains, oil, or debris. It can be directly rinsed or disinfected with a high-pressure water gun, making it suitable for scenarios with high hygiene requirements; more stable stacking and fixing; at the same time, the double-sided flat pallet has strong bending resistance and the non-perforated panel can disperse the force through the intact panel when subjected to external impact (such as goods falling or forklift collision), making it less prone to local damage. The flat panel can evenly distribute the pressure of the goods, and even if heavy items (such as machine tool parts) are placed in a local area, the pallet is less likely to dent due to excessive pressure.

[0003] In the injection molding production of double-sided flat pallets, the traditional side core-pulling structure of molds often faces two major problems: First, the cavity forming accuracy is insufficient. Since the pallet needs to reserve complex side holes such as four-way fork entry, the existing core-pulling mechanism is mostly unidirectional or fixed trajectory movement, which makes it difficult to form a completely closed cavity through the tight cooperation of multi-directional components. Gaps are prone to occur, which can lead to plastic overflow during injection molding. Or, due to the poor fit of the components, the side hole size deviation and edge burrs of the molded pallet may occur, affecting the consistency of the product. The existing technology usually produces single-sided flat pallets and then assembles two double-sided flat pallets by heating them from the bottom to form a double-sided pallet.

[0004] On the other hand, interference and damage issues are prominent during the demolding process. Traditional side core-pulling devices lack orderly coordination between the lateral and vertical core-pulling actions. During demolding, asynchronous component resetting can easily lead to rigid friction between the core and the tray surface, or the slider may not fully retract, hindering the movement of the push plate and causing scratches, deformation, or even cracks on the tray surface. This not only reduces the yield rate of finished products but also requires frequent machine stops for mold cleaning, severely restricting production efficiency. In addition, existing structures have poor adaptability to different tray specifications, and adjusting the core-pulling parameters requires significant mold modifications, making it difficult to meet the needs of flexible production. Therefore, we propose a multi-directional side core-pulling demolding device for double-sided tray injection molds. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-directional side core-pulling demolding device for double-sided pallet injection molds, so as to solve the technical problem of difficult injection molding of double-sided flat pallets.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a multi-directional side core-pulling demolding device for a double-sided tray injection mold, comprising an injection substrate, a side-axis mold clamping mechanism arranged above the injection substrate, a demolding component, and a coating component, wherein the side-axis mold clamping mechanism comprises a movable template that is slidably adapted to the injection substrate and a stationary template that is fixedly arranged above the injection substrate.

[0007] The moving template is symmetrically fitted with a horizontal push plate and a vertical push plate on one side. Each horizontal push plate is symmetrically fixedly connected to a first fixing block on one side. Each first fixing block is fixedly connected to a hollow limiting plate on one side. Each hollow limiting plate has an air vent on one side. Each hollow limiting plate is fixedly connected to a second fixing block at one end. A first slider is slidably fitted between the second fixing block and the first fixing block. Each vertical push plate is symmetrically fixedly connected to a guide plate at one end. The horizontal push plates and vertical push plates can move towards each other or in opposite directions.

[0008] When moving towards each other, the opposing second fixed blocks come into close contact, the guide plate moves downward, and applies force to the first slider, causing the vertically opposing first sliders to move and come into close contact, forming a double-sided flat tray injection cavity. When moving in opposite directions, the guide plate moves, and the first slider moves so that its upper surface is flush with the upper surface of the first fixed block, allowing the transverse push plate to move out smoothly and complete demolding. This invention achieves precise molding and orderly demolding of the double-sided flat tray injection cavity by coordinating the opposite or in-between movements of the transverse and vertical push plates, and by using the force of the guide plate on the first slider and the air pressure adjustment of the hollow limit plate. When moving towards each other, the close contact between the second fixed block and the vertical first slider forms a closed cavity, ensuring injection accuracy. When moving in opposite directions, the first slider is flush with the first fixed block, avoiding interference with the transverse push plate, ensuring smooth demolding, effectively reducing structural defects during tray molding and surface damage during demolding, and improving production efficiency and finished product quality.

[0009] Preferably, a plastic injection molding system is arranged above the injection molding substrate, and a hydraulic system is arranged above the injection molding substrate.

[0010] Preferably, the side-axis mold clamping mechanism further includes a plurality of tie rods, which are arranged in a square array and fixedly positioned above the injection molding substrate. The tie rods are fixedly adapted to the hydraulic system. The moving template is slidably adapted to the surface of the tie rods and is also adapted to the hydraulic system for transmission. The stationary template is fixedly adapted to the end surface of the tie rods, and the output end of the plastic injection molding system is inserted into the hole on the stationary template.

[0011] Preferably, a plurality of slide rail modules are provided on one side of the moving template, and a plurality of the horizontal push plates are slidably adapted to one side of the slide rail modules. A first pipe is fixedly connected to the other side of each horizontal push plate, and the first pipe passes through the first fixing block and is connected to the hollow limiting plate.

[0012] Preferably, the first slider is slidably sleeved on the surface of the hollow limiting plate, and an air pressure cavity is formed between the hollow limiting plate and the first slider. Each of the transverse push plates is fixedly connected to a number of shaft cores on one side, and the guide plate is sealed and slidably adapted between the second fixing block and the first fixing block.

[0013] Preferably, the demolding assembly includes a demolding template, which is slidably adapted to the inside of a movable template via insert rods. Each insert rod on the demolding template is movably sleeved with a first spring, and the end of the first spring is fixedly connected to the side of the movable template away from the transverse push plate. The demolding template is sealed and slidably adapted to a plurality of baffles, which are arranged in a layered stacked manner.

[0014] Preferably, each of the two inner walls of the template is fixedly connected to a fixing plate, each fixing plate has a plurality of locking holes in a linear array on one side, each baffle has a locking rod rotatably connected to one side in a symmetrical structure, and the locking rod passes through the locking hole, each locking rod has a locking block fixedly connected to its surface, and the locking block is adapted to the shape of the locking hole, each locking rod has a transmission plate fixedly connected to its end, and each locking rod has a second spring movably sleeved on its surface, and the second spring is fixedly connected to the transmission plate.

[0015] Preferably, the inner wall of the moving template is symmetrically connected with guide rods. Two guide plates are slidably adapted to one side of the two guide rods via pneumatic sliders. Each guide plate has several arc-shaped through holes in a linear array on one side, and the rod inserted on the transmission plate passes through the arc-shaped through holes. The two guide rods are symmetrically connected with sliding rods. A protruding rod is slidably adapted between the two sliding rods, and the protruding rod is in movable contact with the end of the rod inserted on the transmission plate.

[0016] Preferably, the coating component includes several notches, which are symmetrically arranged on the inner walls of both sides of the moving template. Each notch is fixedly connected to a storage box, and a baffle plate is fixedly connected to one side of each storage box. A pressure groove is formed in a linear array on one side of the baffle plate, and several flexible tubes are connected in a linear array to one side of the storage box, with the flexible tubes passing through the pressure grooves.

[0017] Preferably, a top cylinder is fixedly connected to the inner wall of one side of each notch, an extrusion plate with protrusions is fixedly connected to the output end of each top cylinder, and a mesh plate is fixedly arranged along the edge of each notch, with the protrusions on the extrusion plate sealingly adapted to the holes in the mesh plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention achieves precise molding and orderly demolding of the injection cavity of a double-sided flat tray by coordinating the opposing or opposite movements of the horizontal and vertical push plates, with the help of the force exerted by the guide plate on the first slider and the air pressure adjustment of the hollow limiting plate: When moving in opposite directions, a closed cavity is formed by the close contact between the second fixing block and the first vertical slider, ensuring injection accuracy; when moving in opposite directions, the first slider is flush with the first fixing block, avoiding interference with the horizontal push plate, ensuring smooth demolding, effectively reducing structural defects during tray molding and surface damage during demolding, and improving production efficiency and finished product quality.

[0020] 2. This invention achieves simultaneous forming and demolding of four-way entry forks by using hydraulically driven horizontal and vertical push plates in synergy, combined with pneumatic chamber control of the precise movement of the first slider. The horizontal push plate drives the shaft core to form a horizontal structure fork hole, while the vertical push plate, through guide plate and pneumatic chamber adjustment, ensures that the first slider fits tightly to form a complete cavity. During demolding, the vertical push plate separates first, then the first slider is reset by pneumatic extraction, and finally the horizontal push plate is extracted. The entire process is step-by-step and orderly, avoiding damage to the finished product caused by structural interference in traditional demolding, and significantly improving the forming accuracy and production efficiency of double-sided flat trays.

[0021] 3. The demolding component of this invention innovatively adopts a layered baffle structure. Through the linkage control of the guide plate and the convex rod, the baffles move in a wave-like undulating motion. This design not only enables localized demolding of the tray, reducing stress concentration during large-area demolding, but also prevents the finished product from sticking to the baffle through dynamic contact. In addition, the geometric adaptation of the locking rod and locking hole ensures the stability of the baffle movement, while the spring reset mechanism further improves the reliability of the demolding process, effectively avoiding scratches or deformation on the surface of the finished product and ensuring product quality.

[0022] 4. This invention achieves precise and automated application of release agent through the combination of a storage box, a flexible tube, and a mesh plate. The reciprocating motion of the extrusion plate evenly squeezes the release agent from the flexible tube, applying it to the side of the tray through the mesh plate holes, resulting in uniform and controllable lubrication. This design not only simplifies the tedious process of manual application but also allows for immediate surface treatment after injection molding, reducing demolding resistance and avoiding surface damage caused by dragging and pulling. Simultaneously, the sealed fit between the mesh plate and the extrusion plate ensures surface flatness during injection molding, balancing production efficiency and product appearance quality. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the double-sided flat tray of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the double-sided pallet injection molding machine of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the side-axis mold-closing mechanism of the present invention;

[0026] Figure 4 This is a schematic cross-sectional view of the side shaft mold clamping mechanism of the present invention;

[0027] Figure 5 This is a three-dimensional exploded view of the side-axis mold-closing mechanism of the present invention;

[0028] Figure 6 This is a three-dimensional exploded view of the side-axis mold closing mechanism of the present invention, to show the three-dimensional structure of the transverse push plate;

[0029] Figure 7 This is a schematic cross-sectional view of the side shaft mold clamping mechanism of the present invention;

[0030] Figure 8 This is a three-dimensional structural diagram of the demolding component of the present invention;

[0031] Figure 9 This is a three-dimensional structural diagram of the demolding component of the present invention, showing the left three-dimensional structure of the demolding template;

[0032] Figure 10 This is a three-dimensional exploded view of the demolding component of the present invention;

[0033] Figure 11 This is a three-dimensional structural diagram of the left side of the baffle of the present invention;

[0034] Figure 12 This is a three-dimensional structural diagram of the application component of the present invention;

[0035] Figure 13 This is a three-dimensional exploded view of the coating component of the present invention;

[0036] Figure 14 This is a three-dimensional exploded view of the coating component of the present invention, showing the bottom structure of the extrusion plate;

[0037] Figure 15 This is a schematic diagram of the moving template in its demolding and usage state according to the present invention;

[0038] Figure 16 This is a schematic diagram of the dynamic template in use state according to the present invention.

[0039] Explanation of the numbers in the diagram: 1. Injection molding base plate; 11. Plastic injection molding system; 12. Hydraulic system; 2. Side shaft clamping mechanism; 21. Guiding column; 22. Moving mold plate; 23. Stationary mold plate; 24. Slide rail module; 25. Horizontal push plate; 26. Vertical push plate; 27. First fixing block; 28. Hollowed-out limiting plate; 281. Vent hole; 29. ​​First pipe; 210. Second fixing block; 211. First slider; 212. Shaft core; 213. Guide plate; 3. Demolding assembly Components; 31. Template release; 32. First spring; 33. Baffle; 34. Fixing plate; 341. Lock hole; 35. Locking rod; 351. Locking block; 36. Transmission plate; 37. Second spring; 38. Guide rod; 39. Guide plate; 391. Arc-shaped through hole; 310. Sliding rod; 311. Protruding rod; 4. Coating assembly; 41. Notch; 42. Storage box; 43. Bar plate; 431. Pressure groove; 44. Hose; 45. Top cylinder; 46. Extrusion plate; 47. Mesh plate. Detailed Implementation

[0040] like Figures 2-7 and Figures 15-16 As shown, the present invention relates to a multi-directional side core-pulling demolding device for a double-sided pallet injection mold, comprising an injection base plate 1, a plastic injection system 11 arranged above the injection base plate 1, a hydraulic system 12 arranged above the injection base plate 1, a side axis mold closing mechanism 2 arranged above the injection base plate 1, a demolding assembly 3, and an application assembly 4.

[0041] It is worth noting that the hydraulic system 12 is a conventional technology and will not be described in detail here. It consists of a hydraulic module and its control system, and is used to drive the mold to close. Meanwhile, the plastic injection system 11 consists of heating elements and a barrel, which is used to heat the plastic particles, melt them and transport them into the mold in the mold to realize the injection molding process.

[0042] The side-axis mold clamping mechanism 2 includes several gateposts 21, which are arranged in a square array and fixedly positioned above the injection molding substrate 1. The gateposts 21 are fixedly adapted to the hydraulic system 12. Moving templates 22 are slidably adapted to the surfaces of the gateposts 21, and the moving templates 22 are also adapted to the hydraulic system 12 for transmission. Stationary templates 23 are fixedly adapted to the end surfaces of the gateposts 21, and the output end of the plastic injection molding system 11 is inserted into a hole in the stationary template 23. Several slide rail modules 24 are provided on one side of the moving template 22. Two slide rail modules 24 are slidably adapted to one side of a horizontal push plate 25, and the other two slide rail modules 24 are slidably adapted to one side of a vertical push plate 26. Each horizontal push plate 25 has a first fixing block 27 symmetrically connected to one side, and each first fixing block 27 has a hollow limiter fixedly connected to one side. Position plate 28, each hollow limiting plate 28 has an air vent 281 on one side, each horizontal push plate 25 has a first pipe 29 fixedly connected to the other side, and the first pipe 29 passes through the first fixing block 27 and connects to the hollow limiting plate 28, each hollow limiting plate 28 has a second fixing block 210 fixedly connected to one end, the second fixing block 210 and the first fixing block 27 are slidably adapted to a first slider 211, and the first slider 211 is slidably sleeved on the surface of the hollow limiting plate 28, and an air pressure chamber is formed between the hollow limiting plate 28 and the first slider 211, each horizontal push plate 25 has several shaft cores 212 fixedly connected to one side, each vertical push plate 26 has a guide plate 213 fixedly connected to the end in a symmetrical structure, and the guide plate 213 is sealed and slidably adapted between the second fixing block 210 and the first fixing block 27.

[0043] Specifically, driven by gas, the two horizontal push plates 25 move toward each other, causing the two second fixed blocks 210 to come into close contact. The two vertical push plates 26 move toward each other, and the guide plate 213 applies force to the first slider 211. By slowly filling the air pressure chamber with gas, the two vertical first sliders 211 move toward each other and come into close contact, thus forming an injection cavity suitable for a double-sided flat tray. During demolding, the two vertical push plates 26 move in opposite directions first, and then the gas is slowly extracted from the air pressure chamber. The first slider 211 moves and its upper surface is flush with the upper surface of the first fixed block 27. The two horizontal push plates 25 move in opposite directions and are pulled out, thus demolding the double-sided flat tray.

[0044] This invention achieves simultaneous forming and demolding of four-way entry forks by hydraulically driving the coordinated action of the horizontal push plate 25 and the vertical push plate 26, combined with the precise movement of the first slider 211 controlled by the pneumatic chamber. The horizontal push plate 25 drives the shaft core 212 to form a horizontal structure fork hole, and the vertical push plate 26 is adjusted by the guide plate 213 and the pneumatic chamber to ensure that the first slider 211 fits tightly to form a complete cavity. During demolding, the vertical push plate 26 separates first, and then the first slider 211 is reset by pneumatic extraction. Finally, the horizontal push plate 25 is extracted. The whole process is orderly and step-by-step, avoiding damage to the finished product caused by structural interference in traditional demolding, and significantly improving the forming accuracy and production efficiency of double-sided flat trays.

[0045] like Figures 8-11 As shown, the demolding assembly 3 includes a demolding template 31, which is slidably fitted inside the movable template 22 via insert rods. A first spring 32 is movably sleeved on the surface of each insert rod on the demolding template 31, and the end of the first spring 32 is fixedly connected to the side of the movable template 22 away from the transverse push plate 25. Several baffles 33 are slidably fitted inside the demolding template 31, and these baffles 33 are arranged in a layered stacked manner. A fixing plate 34 is fixedly connected to the inner walls on both sides of each demolding template 31. Several locking holes 341 are linearly arrayed on one side of each fixing plate 34. A locking rod 35 is rotatably connected to one side of each baffle 33 in a symmetrical structure, and the locking rod 35 passes through the locking hole 341. A locking block 351 is fixedly connected to the surface of each locking rod 35. 1. Adapted to the shape of the lock hole 341, each lock rod 35 is fixedly connected to a transmission plate 36 at its end. Each lock rod 35 is movably sleeved with a second spring 37, and the second spring 37 is fixedly connected to the transmission plate 36. The inner wall of the moving template 22 is symmetrically connected with guide rods 38. Two guide plates 39 are slidably adapted to one side of the two guide rods 38 through a pneumatic slider. Each guide plate 39 has several arc-shaped through holes 391 in a linear array on one side. The rod inserted on the transmission plate 36 passes through the arc-shaped through holes 391. The two guide rods 38 are symmetrically connected to a sliding rod 310. The two sliding rods 310 are slidably adapted to each other with a protruding rod 311, and the protruding rod 311 is in movable contact with the end of the rod inserted on the transmission plate 36.

[0046] Specifically, after injection molding is completed, the two guide plates 39 are moved towards each other by an external control system, driving the locking rod 35 to rotate, so that the locking block 351 can slide inside the locking hole 341. At the same time, the convex rod 311 moves and applies force to the transmission plate 36, causing several baffles 33 to move in a wave-like manner, performing partial demolding treatment on the double-sided flat tray after injection molding, and preventing the injection molded product from sticking to the baffles 33, thus avoiding damage to the surface of the injection molded product during demolding.

[0047] In this invention, the demolding component 3 innovatively adopts a layered baffle 33 structure. Through the linkage control of the guide plate 39 and the protruding rod 311, the baffle 33 moves in a wave-like undulating motion. This design not only enables local demolding of the tray, reducing stress concentration during large-area demolding, but also prevents the finished product from sticking to the baffle 33 through dynamic contact. In addition, the geometric fit between the locking rod 35 and the locking hole 341 ensures the stability of the baffle 33's movement, while the spring reset mechanism further improves the reliability of the demolding process, effectively avoiding scratches or deformation on the surface of the finished product and ensuring product quality.

[0048] like Figure 5 and Figures 12-14 As shown, the coating component 4 includes several notches 41, which are symmetrically arranged on the inner walls of both sides of the moving template 22. Each notch 41 has a storage box 42 fixedly connected inside. Each storage box 42 has a baffle plate 43 fixedly connected to one side. Each baffle plate 43 has a pressure groove 431 arranged in a linear array on one side. Each storage box 42 has several hoses 44 connected in a linear array on one side, and the hoses 44 pass through the pressure grooves 431. Each notch 41 has a top cylinder 45 fixedly connected to one side of the inner wall. Each top cylinder 45 has an extrusion plate 46 with protrusions fixedly connected to its output end. Each notch 41 has a mesh plate 47 fixedly arranged along its edge, and the protrusions on the extrusion plate 46 are sealed and adapted to the holes in the mesh plate 47.

[0049] It is worth noting that a sponge needs to be placed inside the hose 44 to absorb the release agent in the storage box 42. After the extrusion plate 46 moves horizontally, it applies force to the hose 44, squeezing out the release agent in the sponge and flowing out from the holes on the mesh plate 47 to lubricate the sides of the double-sided flat tray.

[0050] Specifically, when the stencil 47 is in close contact with the extrusion plate 46, the stencil 47 is flat and used to make the side surface of the double-sided flat tray flat for injection molding. When the stencil 47 separates from the extrusion plate 46, the output end of the hose 44 pops out. When pressed down, the hose 44 is squeezed to squeeze out the mold release agent inside and apply it to the surface of the injection molded product to lubricate the side surface of the injection molded product.

[0051] This invention achieves precise and automatic application of release agent through the combination of storage box 42, hose 44, and mesh plate 47. The reciprocating motion of extrusion plate 46 evenly squeezes out the release agent in hose 44 and applies it to the side of the tray through the holes of mesh plate 47, resulting in uniform and controllable lubrication. This design not only simplifies the tedious process of manual application but also allows for immediate surface treatment after injection molding, reducing demolding resistance and avoiding surface damage caused by dragging and pulling. At the same time, the sealed fit between mesh plate 47 and extrusion plate 46 ensures surface flatness during injection molding, balancing production efficiency and product appearance quality.

[0052] Working principle: This embodiment provides a multi-directional side core-pulling demolding device for a double-sided pallet injection mold. In use, the external control system first drives the horizontal push plates 25 on both sides to move towards each other until the opposing second fixed blocks 210 are in close contact. Then, the external control system drives the two vertical push plates 26 to move towards each other, causing the guide plate 213 to move. The guide plate 213 applies an action to the first slider 211 and supplies gas to the air pressure chamber through the first pipe 29, causing the first slider 211 to move slowly until the vertically opposing first sliders 211 are in close contact, thereby forming a double-sided flat pallet. Then, the hydraulic system 12 drives the moving platen 22 to move towards the stationary platen 23, causing the stationary platen 23 and the moving platen 22 to close. The plastic granules are melted by the plastic injection system 11 and flow from the barrel into the injection cavity to form a double-sided flat pallet.

[0053] After injection molding is completed, the moving template 22 and the stationary template 23 are separated. At this time, the output end of the top cylinder 45 is driven by the external control system, and the extrusion plate 46 with protrusions moves up and down reciprocally. When the extrusion plate 46 separates from the screen plate 47, the hose 44 pops out from the pressure groove 431. When the extrusion plate 46 and the screen plate 47 are combined, the sponge that absorbs the release agent in the port of the hose 44 is squeezed, and the release agent is discharged into the screen plate 47 or the extrusion plate 46. The release agent is squeezed out and applied to the side surface of the flat tray through the protrusions and the holes on the screen plate 47 for lubrication, so as to avoid scratches and other problems during dragging and pulling.

[0054] After the lubricated tray surface, the moving template 22 continues to move to one side, and the two guide plates 39 are driven to move towards each other by the control system. Since the rod on the transmission plate 36 passes through the arc-shaped through hole 391, the transmission plate 36 rotates axially and drives the locking block 351 to rotate and match the locking hole 341, so that the locking rod 35 can move. At this time, the external control system drives the protruding rod 311 to move upward. The protruding rod 311 makes active contact with the end surface of the rod on the transmission plate 36 and applies force to it, so that several baffles 33 can move in a wave-like undulating manner, which can locally demold and reduce scratches, and apply a uniform pushing force to the double-sided tray to push the tray out.

[0055] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A multi-directional side core-pulling demolding device for a double-sided tray injection mold, comprising an injection base plate (1), a side-axis mold clamping mechanism (2) arranged above the injection base plate (1), a demolding assembly (3), and an application assembly (4), characterized in that, The side-axis mold closing mechanism (2) includes a movable template (22) that is slidably adapted to the injection molding substrate (1) and a stationary template (23) that is fixedly arranged above the injection molding substrate (1). The moving template (22) is symmetrically fitted with a horizontal push plate (25) and a vertical push plate (26) on one side. Each horizontal push plate (25) is symmetrically connected with a first fixing block (27) on one side. Each first fixing block (27) is fixedly connected with a hollow limiting plate (28) on one side. Each hollow limiting plate (28) is provided with an air vent (281) on one side. Each hollow limiting plate (28) is fixedly connected with a second fixing block (210) at one end. The second fixing block (210) and the first fixing block (27) are slidably fitted with a first slider (211). Each vertical push plate (26) is symmetrically connected with a guide plate (213) at one end. Several horizontal push plates (25) and vertical push plates (26) can move towards each other or in opposite directions. When moving towards each other, the opposing second fixed blocks (210) are in close contact, the guide plate (213) moves down, and applies force to the first slider (211), causing the vertically opposing first sliders (211) to move and make close contact, forming a double-sided flat tray injection cavity; when moving in opposite directions, the guide plate (213) moves, and the first slider (211) moves so that its upper surface is flush with the upper surface of the first fixed block (27), so that the transverse push plate (25) can be smoothly removed to complete demolding.

2. The multi-directional side core-pulling demolding device for a double-sided tray injection mold according to claim 1, characterized in that, A plastic injection system (11) is arranged above the injection molding substrate (1), and a hydraulic system (12) is arranged above the injection molding substrate (1).

3. The multi-directional side core-pulling demolding device for a double-sided tray injection mold according to claim 2, characterized in that, The side-axis mold clamping mechanism (2) also includes a number of gateposts (21). The gateposts (21) are arranged in a square array and fixedly arranged above the injection molding substrate (1). The gateposts (21) are fixedly adapted to the hydraulic system (12). The moving template (22) is slidably adapted to the surface of the gateposts (21). The moving template (22) is driven and adapted to the hydraulic system (12). The stationary template (23) is fixedly adapted to the end surface of the gateposts (21). The output end of the plastic injection molding system (11) is inserted into the hole on the stationary template (23).

4. A multi-directional side core-pulling demolding device for a double-sided pallet injection mold according to claim 3, characterized in that, The moving template (22) has several slide rail modules (24) on one side. Several horizontal push plates (25) are slidably adapted to one side of the slide rail module (24). Each horizontal push plate (25) has a first pipe (29) fixedly connected to the other side, and the first pipe (29) passes through the first fixing block (27) and is connected to the hollow limiting plate (28).

5. A multi-directional side core-pulling demolding device for a double-sided tray injection mold according to claim 4, characterized in that, The first slider (211) is slidably sleeved on the surface of the hollow limit plate (28). A pneumatic cavity is formed between the hollow limit plate (28) and the first slider (211). Several shaft cores (212) are fixedly connected to one side of each of the transverse push plates (25). The guide plate (213) is sealed and slidably adapted between the second fixed block (210) and the first fixed block (27).

6. A multi-directional side core-pulling demolding device for a double-sided tray injection mold according to claim 5, characterized in that, The demolding assembly (3) includes a demolding template (31), which is slidably adapted to the inside of the moving template (22) by means of insert rods. The surface of the insert rods on the demolding template (31) is movably sleeved with a first spring (32), and the end of the first spring (32) is fixedly connected to the side of the moving template (22) away from the transverse push plate (25). The demolding template (31) is sealed and slidably adapted to a number of baffles (33), and the number of baffles (33) are arranged in layers.

7. A multi-directional side core-pulling demolding device for a double-sided pallet injection mold according to claim 6, characterized in that, Each of the two inner walls of the template (31) is fixedly connected to a fixing plate (34). Each of the fixing plates (34) has a number of lock holes (341) arranged in a linear array on one side. Each of the baffles (33) has a locking rod (35) rotatably connected to one side in a symmetrical structure. The locking rod (35) passes through the lock hole (341). Each of the locking rods (35) has a locking block (351) fixedly connected to its surface. The locking block (351) is adapted to the shape of the lock hole (341). Each of the locking rods (35) has a transmission plate (36) fixedly connected to its end. Each of the locking rods (35) has a second spring (37) movably sleeved on its surface. The second spring (37) is fixedly connected to the transmission plate (36).

8. A multi-directional side core-pulling demolding device for a double-sided tray injection mold according to claim 7, characterized in that, The inner wall of the moving template (22) is symmetrically connected with guide rods (38). Two guide plates (39) are slidably adapted to one side of the two guide rods (38) via pneumatic sliders. Each guide plate (39) has several arc-shaped through holes (391) arranged in a linear array on one side. The rod inserted on the transmission plate (36) passes through the arc-shaped through holes (391). The two guide rods (38) are symmetrically connected with slide rods (310). The two slide rods (310) are slidably adapted to one another with a protrusion rod (311). The protrusion rod (311) is in active contact with the end of the rod inserted on the transmission plate (36).

9. A multi-directional side core-pulling demolding device for a double-sided pallet injection mold according to claim 8, characterized in that, The coating component (4) includes several notches (41), which are symmetrically arranged on the inner walls of both sides of the moving template (22). Each notch (41) is fixedly connected to a storage box (42), and a baffle plate (43) is fixedly connected to one side of each storage box (42). A pressure groove (431) is formed in a linear array on one side of the baffle plate (43), and several hoses (44) are connected in a linear array on one side of the storage box (42), with the hoses (44) passing through the pressure groove (431).

10. A multi-directional side core-pulling demolding device for a double-sided pallet injection mold according to claim 9, characterized in that, Each of the notches (41) has a top cylinder (45) fixedly connected to one side of the inner wall. Each of the top cylinders (45) has a pressing plate (46) with protrusions fixedly connected to its output end. Each of the notches (41) has a mesh plate (47) fixedly arranged along its edge. The protrusions on the pressing plate (46) are sealed and adapted to the holes on the mesh plate (47).

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