Demolding mechanism and demoulding method for injection molding machine

Abstract

The invention relates to the technical field of demoulding of injection molding machines, and discloses a demoulding mechanism for injection molding machines. Through the arrangement of an inner core rod, an upper demoulding assembly and a lower demoulding assembly, on the one hand, when the inner core rod is pulled, the movement of the inner core rod can drive the demoulding flap to complete the corresponding flipping, so that the flipped demoulding flap can complete the supporting and demoulding effect of the molded plastic part on the upper end surface of the spherical mold; on the other hand, when the inner core rod moves, the pressing block can also be driven to complete the corresponding downward movement through the extrusion between the first inclined surface block and the second inclined surface block, so that a plurality of supporting rods can be extended outside the spherical mold, thereby completing the supporting and demoulding of the molded plastic part on the lower end surface of the spherical mold. Moreover, compared with the prior art, the present scheme can complete the demoulding of the molded plastic part without manpower, so as to effectively solve the problem in the prior art that manual demoulding is likely to cause damage to the molded plastic part.

Description

Technical Field

[0001] The invention relates to the technical field of demoulding of injection molding machines, in particular to a demoulding mechanism for injection molding machines. Background Art

[0002] The injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastic plastics or thermosetting plastics. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity. When the plastic inside the mold cavity is cooled, the outer mold and the inner mold are separated, and the demolding mechanism is used to push the plastic product horizontally to separate the plastic product from the inner and outer molds, completing the demolding of the plastic product. Different shapes of products require different injection molds and demolding equipment.

[0003] In the prior art, for the injection molding of spherical plastic parts, generally, a spherical mold is placed on a liquid injection table, and the liquid injection effect of the spherical model is completed through the corresponding liquid injection parts. When the plastic liquid on the surface of the spherical mold is cooled, the molded plastic part adhered to the spherical mold can be demolded by manual prying. Although this method can achieve the corresponding demolding effect to a certain extent, this method is after all a direct demolding by manpower. If you do not pay attention to the strength, it is very likely to cause unnecessary damage to the molded plastic parts.

[0004] Therefore, the existing demand is not met, and we propose a demoulding mechanism and a demoulding method for an injection molding machine. Summary of the invention

[0005] The present invention provides a demoulding mechanism and a demoulding method for an injection molding machine, which have beneficial effects and solve the problems mentioned in the above background technology.

[0006] The present invention provides the following technical solution: a demoulding mechanism for an injection molding machine, comprising an air storage box and a molding die, wherein the air storage box is movably arranged inside a corresponding injection molding machine, and a plurality of molding dies are fixedly arranged on both side surfaces of the air storage box, and an upper demoulding component and a lower demoulding component are arranged inside each molding die, and the upper demoulding component and the lower demoulding component are both used to demould a spherical plastic finished product adhered to the molding die;

[0007] One end of the fixed connecting rod in the molding mold is fixedly set on the air storage box, and the other end of the fixed connecting rod is fixedly connected to the spherical mold. An inner core rod is also slidably set inside the fixed connecting rod, and the inner core rod is used to drive the upper demoulding component and the lower demoulding component to move accordingly.

[0008] A third air storage cavity and a second accommodating cavity are provided inside the inner core rod, a first air hole is provided on the inner wall of the third air storage cavity, the second accommodating cavity is arranged on a side of the third air storage cavity away from the first air storage cavity, and a moving block is slidably provided on the inner wall of the second accommodating cavity.

[0009] As an optional scheme of a demoulding mechanism for an injection molding machine described in the present invention, wherein: a moving through groove is provided on both the upper surface and the lower surface of the second accommodating cavity, a moving gear is rotatably provided inside the moving through groove provided on the lower surface of the second accommodating cavity, the moving gear is meshed with a moving rack, and the moving rack is fixedly provided on the lower surface of the moving block;

[0010] The movable gear is also meshed with a fixed rack, the fixed rack is fixedly arranged on a fixing member, and a fixed connection is formed between the fixing member and an inner wall of a first accommodating cavity, and the first accommodating cavity is opened inside the spherical mold.

[0011] As an optional scheme of the demoulding mechanism for an injection molding machine described in the present invention, one end of a first connecting rod is rotatably set on the upper surface of the moving block, and the other end of the first connecting rod is rotatably set on a demoulding flap, and the demoulding flap is rotatably set on the spherical mold through a corresponding rotating rod and a torsion spring.

[0012] As an optional scheme of a demolding mechanism for an injection molding machine described in the present invention, wherein: a first inclined surface block is also arranged on the lower surface of the inner core rod, the first inclined surface block and the second inclined surface block in the lower demolding assembly are matched to perform contact extrusion, the second inclined surface block is fixedly arranged on the top surface of the pressing block, the pressing block is arranged below the inner core rod, and the pressing block is slidably arranged on the positioning rod, the positioning rod is fixedly arranged on the inner wall of the spherical mold, and a first connecting spring is also arranged between the pressing block and the inner wall of the spherical mold.

[0013] As an optional scheme of a demoulding mechanism for an injection molding machine described in the present invention, there are a plurality of top support rods arranged below the pressing block, each of the top support rods is arranged inside a corresponding connecting through hole, and the connecting through hole is opened on the bottom surface of the spherical mold, each of the top support rods is provided with two connecting blocks, and a second connecting spring is provided between each connecting block and the inner wall of the spherical mold.

[0014] As an optional scheme of a demoulding mechanism for an injection molding machine described in the present invention, each of the top support rods is provided with a fourth air storage cavity, and an air outlet groove is provided on the lower end surface of each top support rod, and the air outlet groove is connected to the fourth air storage cavity, a second air hole is provided on the inner wall of the fourth air storage cavity, and a connecting air pipe is provided between two adjacent top support rods, and the two ends of the connecting air pipe are respectively connected to the second air holes provided on the two top support rods.

[0015] As an optional scheme of a demoulding mechanism for an injection molding machine described in the present invention, wherein: the first air hole opened in the third air storage chamber is connected to one end of the connecting air pipe, and the other end of the connecting air pipe is connected to the second air hole opened on a top support rod.

[0016] As an optional scheme of a demoulding mechanism for an injection molding machine described in the present invention, wherein: two sealing plates are arranged inside the air storage box, the sealing plates are slidably arranged inside the air storage box, and the two sealing plates divide the air storage box into a first air storage cavity and a second air storage cavity, the second air storage cavity is arranged on a side of the sealing plate close to the forming mold, and the first air storage cavity is arranged on a side of the sealing plate away from the forming mold, and the air storage box is also provided with a first connecting air pipe and an air intake check valve, the air intake check valve is connected to the inside of the first air storage cavity, and the first connecting air pipe is connected to the second air storage cavity;

[0017] A side surface of each sealing plate close to the spherical mold is fixedly connected to one end of the inner core rod, and the third air storage cavity opened inside the inner core rod is connected to the first air storage cavity, and a side surface of the sealing plate away from the spherical mold is fixedly connected to the corresponding driving member.

[0018] A technical solution proposed by the present invention: a demoulding method for an injection molding machine, comprising the following steps:

[0019] S1. When the molding mold provided on the gas storage box cooperates with the corresponding injection molding machine to complete the corresponding injection molding and the corresponding cooling is completed, the user can control the external hydraulic rod to complete the lifting of the gas storage box. After the gas storage box is lifted, the user can control the driving device connected with the sealing plate to complete the pulling effect of the inner core rod.

[0020] S2. When the inner core rod is pulled, the movement of the inner core rod can drive the upper demoulding component to complete the corresponding flipping, thereby completing the supporting and demoulding effect of the molded plastic part on the upper end surface of the spherical mold, and the lower demoulding component can also move accordingly during the movement of the inner core rod, so as to complete the supporting and demoulding of the molded plastic part on the lower end surface of the spherical mold;

[0021] S3. At the same time, when the inner core rod moves, the gas inside the first air storage cavity will enter the inner core rod from the first air storage cavity, and connect the air pipe to enter the top support rod. This setting can allow the gas to assist the demolding component to complete the separation of the molding component, thereby accelerating the overall demolding effect.

[0022] The present invention has the following beneficial effects:

[0023] 1. The demoulding mechanism of the injection molding machine is provided with an inner core rod, an upper demoulding assembly and a lower demoulding assembly. On the one hand, when the inner core rod is pulled, the demoulding flap can be driven to complete the corresponding flipping through the movement of the inner core rod, so that the flipped demoulding flap can complete the supporting and demoulding effect of the molded plastic part on the upper end surface of the spherical mold; on the other hand, when the inner core rod moves, the pressing block can be driven to complete the corresponding downward movement through the extrusion between the first inclined surface block and the second inclined surface block, so that a plurality of supporting rods can be extended outside the spherical mold, thereby completing the supporting and demoulding of the molded plastic part on the lower end surface of the spherical mold. Moreover, compared with the prior art, the present scheme can complete the demoulding of the molded plastic part without manpower, so as to effectively solve the problem in the prior art that manual demoulding is likely to cause damage to the molded plastic part.

[0024] 2. The demoulding mechanism of the injection molding machine, when the inner core rod moves, the gas inside the first air storage chamber will enter the inner core rod, and enter several top support rods through the connecting air pipes. This setting can allow the gas to assist the demoulding component to complete the separation of the molding component, thereby accelerating the overall demoulding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the structure of a partial forming mold of the present invention.

[0027] Figure 3 It is a schematic diagram of the cross-sectional structure of a local forming mold of the present invention.

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of the front end of a partial inner core rod of the present invention.

[0029] Figure 5 It is a schematic diagram of the cross-sectional structure of a local fixing member of the present invention.

[0030] Figure 6 It is a schematic diagram of the cross-sectional structure of a local pressing block of the present invention.

[0031] Figure 7 It is a schematic diagram of the cross-sectional structure of a local top support rod of the present invention.

[0032] Figure 8 It is a schematic diagram of the left side section structure of a partial air storage box of the present invention.

[0033] Fig. 9 It is a schematic diagram of the right side section structure of a partial air storage box of the present invention.

[0034] In the figure: 1. air storage box; 2. forming mold;

[0035] 101, first air storage chamber; 102, sealing plate; 103, second air storage chamber; 104, first connecting air pipe; 105, air intake one-way valve;

[0036] 201, spherical mold; 202, demoulding flap; 203, fixed connecting rod; 205, inner core rod; 206, first accommodating chamber; 207, third air storage chamber; 208, first air hole; 209, second accommodating chamber; 210, first inclined block; 211, moving block; 212, moving through groove; 213, first connecting rod; 215, moving rack; 216, moving gear; 217, fixing piece; 218, fixed rack; 221, second connecting air pipe;

[0037] 301, pressing block; 302, second inclined block; 303, first connecting spring; 304, supporting rod; 305, connecting block; 306, second connecting spring; 307, fourth air storage chamber; 308, air outlet groove; 309, second air hole; 310, positioning rod. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] For example, see Figure 1-Figure 5 A demoulding mechanism for an injection molding machine comprises an air storage box 1 and a molding die 2, wherein the air storage box 1 is movably arranged inside a corresponding injection molding machine, and a plurality of molding dies 2 are fixedly arranged on both sides of the air storage box 1, and an upper demoulding component and a lower demoulding component are arranged inside each molding die 2, and the upper demoulding component and the lower demoulding component are both used to demould a spherical plastic finished product adhered to the molding die 2;

[0040] One end of the fixed connecting rod 203 in the molding mold 2 is fixedly set on the air storage box 1, and the other end of the fixed connecting rod 203 is fixedly connected to the spherical mold 201. An inner core rod 205 is also slidably set inside the fixed connecting rod 203, and the inner core rod 205 is used to drive the upper demolding assembly and the lower demolding assembly to move accordingly.

[0041] Two sealing plates 102 are arranged inside the air storage box 1, and the sealing plates 102 are slidably arranged inside the air storage box 1, and the two sealing plates 102 divide the air storage box 1 into a first air storage chamber 101 and a second air storage chamber 103, the second air storage chamber 103 is arranged on the side of the sealing plate 102 close to the forming mold 2, and the first air storage chamber 101 is arranged on the side of the sealing plate 102 away from the forming mold 2, and the air storage box 1 is also provided with a first connecting air pipe 104 and an air intake check valve 105, the air intake check valve 105 is connected to the inside of the first air storage chamber 101, and the first connecting air pipe 104 is connected to the second air storage chamber 103;

[0042] A side surface of each sealing plate 102 close to the spherical mold 201 is fixedly connected to one end of the inner core rod 205, and the third air storage chamber 207 opened inside the inner core rod 205 is connected to the first air storage chamber 101, and a side surface of the sealing plate 102 away from the spherical mold 201 is fixedly connected to the corresponding driving member.

[0043] A third air storage chamber 207 and a second accommodating chamber 209 are provided inside the inner core rod 205, a first air hole 208 is provided on the inner wall of the third air storage chamber 207, the second accommodating chamber 209 is arranged on a side of the third air storage chamber 207 away from the first air storage chamber 101, and a moving block 211 is slidably provided on the inner wall of the second accommodating chamber 209.

[0044] The second accommodating chamber 209 is provided with a moving groove 212 on the upper surface and the lower surface. A moving gear 216 is rotatably provided inside the moving groove 212 provided on the lower surface of the second accommodating chamber 209. The moving gear 216 is meshed with a moving rack 215. The moving rack 215 is fixedly provided on the lower surface of the moving block 211.

[0045] The movable gear 216 is also meshed with a fixed rack 218 . The fixed rack 218 is fixedly disposed on a fixing member 217 . The fixing member 217 is fixedly connected to the inner wall of the first accommodating cavity 206 . The first accommodating cavity 206 is opened inside the spherical mold 201 .

[0046] One end of a first connecting rod 213 is rotatably disposed on the upper surface of the moving block 211 , and the other end of the first connecting rod 213 is rotatably disposed on the demoulding flap 202 .

[0047] In this embodiment: since the air storage box 1 is movably arranged on the corresponding injection molding machine through an external hydraulic rod, when the two sets of molding molds 2 on the air storage box 1 complete the corresponding injection molding and complete cooling, the user can lift the air storage box 1 by controlling the external hydraulic rod;

[0048] After the air storage box 1 is lifted, the user can start the corresponding driving member fixedly connected with the two sealing plates 102. When the user controls the sealing plate 102 to move away from the spherical mold 201 through the corresponding driving member, not only the inner core rod 205 fixedly connected with the sealing plate 102 will synchronously follow the sealing plate 102 to move away from the spherical mold 201, but also the gas injected into the first air storage chamber 101 through the air inlet check valve 105 will be squeezed by the two sealing plates 102 and discharged into the inner core rod 205.

[0049] It should be noted that, even if part of the gas discharged into the first gas storage chamber 101 in advance through the gas inlet check valve 105 enters the inner core rod 205, it will not affect the subsequent components that require gas to complete demoulding;

[0050] It should be noted that the first connecting air pipe 104 is used to connect the second air storage chamber 103 with the outside of the air storage box 1, and the first connecting air pipe 104 can only connect to the outside air, but will not allow external debris to enter the second air storage chamber 103. This makes it possible for the second air storage chamber 103 to absorb air from the outside even if negative pressure is generated inside the second air storage chamber 103 after the sealing plate 102 moves. This arrangement is also to avoid negative pressure from being generated inside the second air storage chamber 103, so that the sealing plate 102 cannot move accordingly.

[0051] On the one hand, since a moving block 211 is slidably provided on the inner core rod 205, and the moving block 211 is rotatably connected with one end of the first connecting rod 213, and the other end of the first connecting rod 213 is rotatably provided on the demoulding flap 202, when the inner core rod 205 moves, the moving block 211 will also move synchronously with the inner core rod 205, so that the first connecting rod 213 drives the demoulding flap 202 to flip away from the spherical mold 201. Since the molded plastic part is adhered to the spherical mold 201, the flipping of the demoulding flap 202 can complete the supporting effect of the molded plastic part adhered to the upper half of the spherical mold 201, so as to complete the demoulding of this part of the molded plastic part;

[0052] It should be noted that when the demoulding flap 202 is in the initial position, it is in a relatively closed state with the spherical mold 201 and the fixed connecting rod 203, and this state will not affect the molding effect of the spherical mold 201, and will not allow the liquid plastic to leak into the spherical mold 201;

[0053] On the other hand, when the inner core rod 205 moves, the moving gear 216 rotatably arranged inside the corresponding moving through slot 212 will also move accordingly. Since the moving gear 216 and the fixed rack 218 are meshed with each other, and the fixed rack 218 is fixedly arranged on the fixing member 217, through this meshing, the moving gear 216 will rotate counterclockwise during the moving process.

[0054] At the same time, since the moving gear 216 is also meshed with the moving rack 215, when the moving gear 216 rotates counterclockwise, the moving rack 215 will move closer to the air storage box 1 under the rotational meshing of the moving gear 216. Since the moving rack 215 is fixedly arranged on the moving block 211, the moving block 211 will also move closer to the air storage box 1 at this time.

[0055] This method further increases the deflection angle of the first connecting rod 213, thereby effectively increasing the flipping angle of the demolding flap 202. In this way, the inner core rod 205 can be shifted a very small distance to achieve a larger flipping angle of the demolding flap 202, thereby achieving a demolding effect. It should be noted that the inner core rod 205 is slidably arranged on the inner wall of the fixed connecting rod 203, and this arrangement effectively ensures the stability of the movement of the inner core rod 205, and the upper demolding assembly arranged on the fixed connecting rod 203 can also be more stably operated.

[0056] Embodiment 2: This embodiment is an improvement made on the basis of Embodiment 1. Figure 3 , Figure 6-Figure 9 As shown, a first inclined surface block 210 is also provided on the lower surface of the inner core rod 205, and the first inclined surface block 210 is matched with a second inclined surface block 302 in the lower demolding assembly for contact extrusion, and the second inclined surface block 302 is fixedly arranged on the top surface of the pressing block 301, and the pressing block 301 is arranged below the inner core rod 205. At the same time, the pressing block 301 is slidably arranged on the positioning rod 310, and the positioning rod 310 is fixedly arranged on the inner wall of the spherical mold 201, and a first connecting spring 303 is also arranged between the pressing block 301 and the inner wall of the spherical mold 201.

[0057] A number of top support rods 304 are also arranged below the pressing block 301, and each top support rod 304 is arranged inside a corresponding connecting through hole, and the connecting through hole is opened on the bottom surface of the spherical mold 201. Two connecting blocks 305 are arranged on each top support rod 304, and a second connecting spring 306 is arranged between each connecting block 305 and the inner wall of the spherical mold 201.

[0058] A fourth air storage cavity 307 is provided inside each top support rod 304, and an air outlet groove 308 is provided on the lower end surface of each top support rod 304, and the air outlet groove 308 is connected to the fourth air storage cavity 307, and a second air hole 309 is provided on the inner wall of the fourth air storage cavity 307, and a connecting air pipe is provided between two adjacent top support rods 304, and the two ends of the connecting air pipe are respectively connected to the second air holes 309 provided on the two top support rods 304.

[0059] The first air hole 208 defined in the third air storage cavity 207 is communicated with one end of the second connecting air pipe 221 , and the other end of the second connecting air pipe 221 is communicated with a second air hole 309 defined in a supporting rod 304 .

[0060] In this embodiment: since the first inclined surface block 210 is arranged at the bottom end of the inner core rod 205, when the inner core rod 205 moves, the first inclined surface block 210 will also move synchronously with the first inclined surface block 210, and since a pressing block 301 is also arranged below the inner core rod 205, and a second inclined surface block 302 is fixedly arranged on the pressing block 301, when the first inclined surface block 210 moves, the first inclined surface block 210 will contact and squeeze the second inclined surface block 302;

[0061] It should be noted that the pressing block 301 is slidably disposed on the positioning rod 310, and the positioning rod 310 is also sleeved with a first connecting spring 303, so when the first inclined surface block 210 contacts the second inclined surface block 302, the pressing block 301 will only move in the up-and-down direction without being offset to the left or right.

[0062] Since a plurality of supporting rods 304 are arranged below the pressing block 301, and the upper end of each supporting rod 304 is in contact with the bottom surface of the pressing block 301, when the pressing block 301 moves downward, the supporting rods 304 will move downward synchronously under the squeezing effect of the pressing block 301.

[0063] It should be noted that the bottom ends of the plurality of top support rods 304 are all configured as arc-shaped structures, and when each top support rod 304 is in the initial position, its upper end is in contact with the bottom surface of the pressing block 301, and its lower end is in contact with the corresponding connecting through hole. This configuration is to prevent the liquid plastic from entering the interior of the spherical mold 201 from the connecting through hole during the injection molding of the spherical mold 201, thereby affecting the corresponding injection molding effect;

[0064] When the plurality of supporting rods 304 move downward, the supporting rods 304 will support the molded plastic part adhered to the lower half of the spherical mold 201 accordingly, so that the molded plastic part can be separated from the spherical mold 201;

[0065] At the same time, the gas injected into the first gas storage chamber 101 through the gas inlet check valve 105 is squeezed by the two sealing plates 102, so the gas will be discharged into the inner core rod 205 in large quantities. Since the end of the inner core rod 205 away from the sealing plate 102 is provided with a first air hole 208, and the first air hole 208 is also connected to the second connecting air pipe 221, the gas will be injected into the second connecting air pipe 221.

[0066] When gas is injected into the second connecting air pipe 221, since the other end of the second connecting air pipe 221 is connected to one of the top support rods 304, and the top support rods 304 are connected through the connecting air pipe, when one of the top support rods 304 completes gas injection, the other top support rods 304 will complete the corresponding gas supply effect;

[0067] Since each of the supporting rods 304 is provided with an air outlet groove 308, and the air outlet groove 308 is connected to the inside of the fourth air storage chamber 307, when the fourth air storage chamber 307 inside the supporting rod 304 is supplied with air from the second connecting air pipe 221, this part of the gas will be sprayed out of the supporting rod 304 through the air outlet groove 308. At this time, since the supporting rod 304 is supporting the molded plastic part of the lower half of the spherical mold 201, this arrangement will also allow the gas sprayed out of the supporting rod 304 to accelerate the separation of this part of the molded plastic part, thereby improving the demoulding efficiency.

[0068] It should be noted that the air outlet groove 308 is provided on the lower end surface of the supporting rod 304. This arrangement is because when the supporting rod 304 supports the molded plastic part of the lower half of the spherical mold 201, its bottom surface is in close contact with the molded rubber part. If it is set on the bottom surface, it is very likely that the contact is too close, so that the gas cannot be effectively discharged. However, when it is set on the lower end surface of the supporting rod 304, not only can the gas be discharged from the supporting rod 304, but also when the supporting rod 304 supports the molded plastic part at the bottom, the inner wall it contacts will also expand outward to a certain extent due to the support of the supporting rod 304. At this time, the separation of this part of the molded plastic part and the spherical mold 201 can be effectively accelerated by the injection of gas, so as to accelerate the overall demoulding effect.

[0069] Through the above-mentioned arrangement, not only can the inner core rod 205 complete the demoulding effect of the plastic part molded in the lower half of the spherical mold 201 during the process of completing the molding of the plastic part in the upper half of the spherical mold 201, but also the separation speed of the plastic part molded in the lower half of the spherical mold 201 can be increased through the corresponding air supply, thereby effectively improving the overall demoulding efficiency.

[0070] In order to further better explain the above embodiment, the present invention also provides an implementation scheme, an injection molding machine demoulding method, comprising the following steps:

[0071] Step 1: When the molding mold 2 provided on the gas storage box 1 cooperates with the corresponding injection molding machine to complete the corresponding injection molding and completes the corresponding cooling, the user can control the external hydraulic rod to complete the lifting of the gas storage box 1. After the gas storage box 1 is lifted, the user can control the driving device connected to the sealing plate 102 to complete the pulling effect of the inner core rod 205.

[0072] Step 2: When the inner core rod 205 is pulled, the movement of the inner core rod 205 can drive the upper demoulding component to complete the corresponding flipping, thereby completing the supporting and demoulding effect of the molded plastic part on the upper end surface of the spherical mold 201, and the lower demoulding component can also move accordingly during the movement of the inner core rod 205, so as to complete the supporting and demoulding of the molded plastic part on the lower end surface of the spherical mold 201;

[0073] Step three, when the inner core rod 205 moves, the gas inside the first air storage chamber 101 will enter the inner core rod 205 from the first air storage chamber 101, and the second connecting air pipe 221 will enter the top support rod 304. This setting can allow the gas to assist the demolding component to complete the separation of the molding component, thereby accelerating the overall demolding effect.

[0074] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0075] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A demoulding mechanism for an injection molding machine, comprising an air storage box and a molding mold, characterized in that: The air storage box is movably arranged inside the corresponding injection molding machine, and a plurality of molding molds are fixedly arranged on both side surfaces of the air storage box, and an upper demoulding component and a lower demoulding component are arranged inside each molding mold, and the upper demoulding component and the lower demoulding component are both used to demould the spherical plastic finished product adhered to the molding mold; One end of the fixed connecting rod in the molding die is fixedly arranged on the air storage box, and the other end of the fixed connecting rod is fixedly connected to the spherical mold, and an inner core rod is slidably arranged inside the fixed connecting rod, and the inner core rod is used to drive the upper demoulding assembly and the lower demoulding assembly to move accordingly; The inner core rod is provided with a third air storage cavity and a second accommodating cavity, the inner wall of the third air storage cavity is provided with a first air hole, the second accommodating cavity is arranged on a side of the third air storage cavity away from the first air storage cavity, and a moving block is slidably arranged on the inner wall of the second accommodating cavity; The upper surface and the lower surface of the second accommodating cavity are both provided with moving grooves, and a moving gear is rotatably arranged inside the moving groove provided on the lower surface of the second accommodating cavity, and the moving gear is meshed with a moving rack, and the moving rack is fixedly arranged on the lower surface of the moving block; The movable gear is also meshed with a fixed rack, the fixed rack is fixedly arranged on a fixing member, and a fixed connection is formed between the fixing member and an inner wall of a first accommodating cavity, and the first accommodating cavity is opened inside the spherical mold; One end of a first connecting rod is rotatably disposed on the upper surface of the moving block, and the other end of the first connecting rod is rotatably disposed on a demoulding flap, and the demoulding flap is rotatably disposed on the spherical mold through a corresponding rotating rod and a torsion spring.

2. The demoulding mechanism for an injection molding machine according to claim 1, characterized in that: A first inclined surface block is also provided on the lower surface of the inner core rod, and the first inclined surface block is matched with a second inclined surface block in the lower demolding assembly for contact extrusion, and the second inclined surface block is fixedly arranged on the top surface of the pressing block, and the pressing block is arranged below the inner core rod. At the same time, the pressing block is slidably arranged on the positioning rod, and the positioning rod is fixedly arranged on the inner wall of the spherical mold, and a first connecting spring is also arranged between the pressing block and the inner wall of the spherical mold.

3. A demoulding mechanism for an injection molding machine according to claim 2, characterized in that: A plurality of top support rods are also arranged below the pressing block, each of which is arranged inside a corresponding connecting through hole, and the connecting through hole is opened on the bottom surface of the spherical mold, each of which is provided with two connecting blocks, and a second connecting spring is arranged between each connecting block and the inner wall of the spherical mold.

4. The demoulding mechanism for an injection molding machine according to claim 3, characterized in that: A fourth air storage cavity is provided inside each of the top support rods, and an air outlet groove is provided on the lower end surface of each top support rod, and the air outlet groove is connected to the fourth air storage cavity. A second air hole is provided on the inner wall of the fourth air storage cavity, and a connecting air pipe is provided between two adjacent top support rods, and the two ends of the connecting air pipe are respectively connected to the second air holes provided on the two top support rods.

5. The demoulding mechanism for an injection molding machine according to claim 4, characterized in that: The first air hole of the third air storage cavity is connected to one end of the second connecting air pipe, and the other end of the second connecting air pipe is connected to the second air hole of a top support rod.

6. A demoulding mechanism for an injection molding machine according to claim 5, characterized in that: Two sealing plates are arranged inside the air storage box, and the sealing plates are slidably arranged inside the air storage box, and the two sealing plates divide the air storage box into a first air storage chamber and a second air storage chamber, the second air storage chamber is arranged on a side of the sealing plate close to the forming mold, and the first air storage chamber is arranged on a side of the sealing plate away from the forming mold, and a first connecting air pipe and an air intake check valve are also arranged on the air storage box, the air intake check valve is connected to the inside of the first air storage chamber, and the first connecting air pipe is connected to the second air storage chamber; A side surface of each sealing plate close to the spherical mold is fixedly connected to one end of the inner core rod, and the third air storage cavity opened inside the inner core rod is connected to the first air storage cavity, and a side surface of the sealing plate away from the spherical mold is fixedly connected to the corresponding driving member.

7. A demoulding method for an injection molding machine, according to the demoulding mechanism for an injection molding machine according to claim 6, characterized in that: The following steps are involved: S1. When the molding mold provided on the gas storage box cooperates with the corresponding injection molding machine to complete the corresponding injection molding and the corresponding cooling is completed, the user can control the external hydraulic rod to complete the lifting of the gas storage box. After the gas storage box is lifted, the user can control the driving device connected with the sealing plate to complete the pulling effect of the inner core rod. S2. When the inner core rod is pulled, the movement of the inner core rod can drive the upper demoulding component to complete the corresponding flipping, thereby completing the supporting and demoulding effect of the molded plastic part on the upper end surface of the spherical mold, and the lower demoulding component can also move accordingly during the movement of the inner core rod, so as to complete the supporting and demoulding of the molded plastic part on the lower end surface of the spherical mold; S3. At the same time, when the inner core rod moves, the gas inside the first air storage cavity will enter the inner core rod from the first air storage cavity, and the second connecting air pipe will enter the top support rod. This setting can allow the gas to assist the demolding component to complete the separation of the molding component, thereby accelerating the overall demolding effect.

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