An environmentally friendly injection molding equipment for injection molded parts

Abstract

The present invention provides an environmentally friendly injection molding device for injection molded parts, belonging to the technical field of plastic part injection molding. It includes a main body and an injection molding component. The injection molding component is fixedly connected to the top of the main body. On one side of the main body close to the output end of the injection molding component, a mold clamping frame is fixedly connected. On the inner wall of the mold clamping frame close to the injection molding component, a fixed mold is fixedly connected. A discharge port is formed through the bottom of the mold clamping frame. After the injection molded part is demolded in the present invention, it will first contact two buffer strips, and the gravity of the falling injection molded part is absorbed by two support springs, greatly reducing the gravity generated when the injection molded part falls onto the movable slide plate. Thus, through the above cooperation method, the gravity generated by the falling of the injection molded part is reduced. When the injection molded part falls downward after demolding, the phenomenon that affects the quality of the injection molded part, such as the injection molded part breaking, caused by the gravity generated when the injection molded part falls and the relatively brittle characteristics of the injection molded part material due to incomplete cooling and shaping is greatly reduced, thereby improving the qualification rate of the injection molded part.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic part injection molding, and particularly relates to an injection molding device for environment-friendly injection molded parts. Background Art

[0002] Environmental protection, the full name of which is environmental protection, refers to the general term for various actions taken by humans to solve real or potential environmental problems, coordinate the relationship between humans and the environment, and ensure the sustainable development of the economy and society. Injection molded parts refer to various injection molded products produced by injection molding machines, including various packages, parts, etc. They are mainly made of materials such as polyethylene or polypropylene and added with a variety of organic solvents. Injection molded products refer to products formed by heating and plasticizing plastics with an injection molding machine, then injecting them into the cavity of a molding die, cooling and lowering the temperature, and demolding after the melt solidifies.

[0003] An injection molding machine is also known as an injection molding machine or an injection machine. It is the main molding equipment for making various shaped plastic products from thermoplastic or thermosetting plastics using plastic molding dies. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat plastics, apply high pressure to the molten plastics, and inject them to fill the mold cavity.

[0004] Generally, after injection molding and demolding, most injection molded parts directly fall to the lower part for collection. And in order for the injection molded parts after demolding to completely fall to the lower part and reduce the phenomenon of injection molded parts getting stuck at the discharge port, there is a distance greater than the size of the injection molded parts between the collection device below the injection molding equipment and the demolding outlet. The injection molded parts during demolding may have an insufficient cooling phenomenon after passing through the cooling device inside the mold during injection molding. Therefore, there will still be a relatively high temperature remaining on the injection molded parts after demolding, and its internal molecular structure has not yet been completely stable to form sufficient strength and stiffness. In this case, when the injection molded parts fall to the lower part after demolding, due to the influence of the gravity generated when the injection molded parts fall and the brittle characteristics of the injection molded part material due to incomplete cooling and shaping, there will be phenomena such as the injection molded parts cracking, which affect the quality of the injection molded parts. Therefore, it increases the defective rate of the injection molded parts, causes material waste, and has low environmental friendliness. The present application provides an injection molding device for environment-friendly injection molded parts to meet the requirements. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an injection molding device for environment-friendly injection molded parts to solve the problem that when the existing injection molded parts fall to the lower part after demolding, due to the influence of the gravity generated when the injection molded parts fall and the brittle characteristics of the injection molded part material due to incomplete cooling and shaping, there will be phenomena such as the injection molded parts cracking, which affect the quality of the injection molded parts.

[0006] To solve the above technical problem, the present invention provides the following technical solutions:

[0007] An environmentally friendly injection molding device for injection molded parts, including a main body and an injection molding component. The injection molding component is fixedly connected to the top of the main body. One side of the main body close to the output end of the injection molding component is fixedly connected with a mold clamping frame. One inner wall of the mold clamping frame close to the injection molding component is fixedly connected with a fixed mold. The bottom of the mold clamping frame is penetrated and provided with a discharge port. It also includes;

[0008] A mold clamping mechanism, which is arranged inside the mold clamping frame. The mold clamping mechanism cooperates with the fixed mold for the molding of injection molded parts and is also used for the demolding of injection molded parts;

[0009] A discharge mechanism, which is arranged at the bottom of the mold clamping frame. When the injection molded part passes through the discharge port and falls to the bottom of the mold clamping frame after demolding, the discharge mechanism is used to buffer the gravity generated when the injection molded part falls;

[0010] A moving mechanism, which is arranged on the discharge mechanism. The moving mechanism cooperates with the mold clamping mechanism and the discharge mechanism to further reduce the gravity of the demolded injection molded part when it falls, and at the same time makes the injection molded part that falls on the discharge mechanism slide downwards.

[0011] Optionally, two connecting bars are fixedly connected to the top of the mold clamping frame. Activity grooves are respectively opened on one side of the two connecting bars close to each other. The activity grooves are distributed at one end of the connecting bar far from the main body. Two strip-shaped sliding holes are penetrated and opened at one end of the main body top close to the mold clamping frame. Side sliding holes are respectively opened on the outer walls of the opposite sides of the main body. The side sliding holes are communicated with the strip-shaped sliding holes. A storage cavity is opened on the inner wall of one side of the discharge port far from the main body. Communication sliding holes are respectively opened on the outer walls of the opposite sides of the mold clamping frame. The communication sliding holes are communicated with the storage cavity. The length of the communication sliding hole is less than the length of the side sliding hole.

[0012] Optionally, two side support legs are fixedly connected to one end of the bottom of the mold clamping frame far from the main body. Connecting strip-shaped holes are respectively penetrated through the outer walls of the two side support legs. Pressing sliders are respectively slidably connected inside the two connecting strip-shaped holes. Spring rings are fixedly connected between the pressing sliders and the bottoms of the connecting strip-shaped holes. A transmission device is fixedly connected between the two pressing sliders. A top column is fixedly connected to the center of one side of the mold clamping frame far from the injection molding component.

[0013] Optionally, the mold clamping mechanism includes a driving component, which is fixedly connected to one side of the mold clamping frame far from the injection molding component. The output end of the driving component slidably penetrates through one side of the mold clamping frame far from the injection molding component. A mold clamping plate is fixedly connected to the output end of the driving component. Four connecting round rods are fixedly connected to one side of the mold clamping plate far from the driving component. A moving mold is fixedly connected to one side of the four connecting round rods far from the mold clamping plate. The moving mold is used in cooperation with the fixed mold. A resisting sliding plate is slidably connected to the outer walls of the four connecting round rods.

[0014] Optionally, two sets of demolding push rods are fixedly connected to one side of the counteracting slide plate close to the moving mold. Each set of demolding push rods slidably penetrates through the moving mold. Two springs are arranged between the moving mold and the counteracting slide plate. A through hole is opened at a position corresponding to the top column on the mold clamping plate. The top column abuts against the counteracting slide plate. Two extension slide rods are fixedly connected to one side of the mold clamping plate close to the driving assembly. A strong spring is fixedly connected to the outer walls of the two extension slide rods.

[0015] Optionally, the discharging mechanism includes a movable material sliding plate. The movable material sliding plate is rotatably connected to the bottom of the mold clamping frame. The movable material sliding plate is distributed at one end of the discharging port close to the main body. Two fitting movable holes are penetrated through one end of the outer wall of the movable material sliding plate close to the discharging port. Buffer strips are rotatably connected to one ends of the two fitting movable holes close to the discharging port. A limiting frame is fixedly connected to a position on the outer wall of the movable material sliding plate below the buffer strip. A support spring is fixedly connected between the limiting frame and the buffer strip. Two connecting chute blocks are fixedly connected to one end of the outer wall of the movable material sliding plate away from the mold clamping frame. An activity pull bar is movably connected between the two connecting chute blocks.

[0016] Optionally, the activity mechanism includes a limiting slide hole frame. The limiting slide hole frame is fixedly connected to the bottom of the main body. The activity pull bar slidably penetrates through one end of the limiting slide hole frame away from the main body. A spring cylinder is fixedly connected to one end of the outer wall of the limiting slide hole frame away from the main body. A penetrating slide rod is fixedly connected to one end of the activity pull bar away from the movable material sliding plate. The penetrating slide rod slidably penetrates through the spring cylinder. A pulling spring is fixedly connected between the inner wall of the spring cylinder close to the movable material sliding plate and the connection positions of the penetrating slide rod and the activity pull bar. A double-rod push-pull frame is fixedly connected to one side of the penetrating slide rod close to the movable material sliding plate. Two connecting vertical bars are fixedly connected to one side of the double-rod push-pull frame away from the penetrating slide rod.

[0017] Optionally, the two connecting vertical bars respectively slidably penetrate through the two strip-shaped slide holes. A side clamping frame is fixedly connected to the outer wall of the connecting vertical bar. The side clamping frame is slidably connected to the inside of the side slide hole. Push-pull round rods are fixedly connected to one sides of the two connecting vertical bars close to the connecting bar. Slide blocks are fixedly connected to one sides of the two push-pull round rods away from the connecting vertical bars. The push-pull round rods slidably penetrate through the connecting bar into the activity groove. The slide blocks are slidably connected to the inside of the activity groove. An abutting strip is fixedly connected between the two slide blocks. The abutting strip abuts against the mold clamping plate. The extension slide rod slidably penetrates through the abutting strip, and the strong spring is fixedly connected to the abutting strip.

[0018] Optionally, an anti-jamming mechanism is arranged inside the storage cavity. The anti-jamming mechanism includes two inner sliding frames. Both of the two inner sliding frames are slidably connected to the inside of the storage cavity. A pushing roller is rotatably connected between the two inner sliding frames. Extension strips are fixedly connected to one sides of the two inner sliding frames away from each other. The connection positions of the inner sliding frame and the extension strip are slidably connected to the inside of the communicating slide hole. An outer extension frame is fixedly connected to one side of the extension strip away from the inner sliding frame.

[0019] Optionally, a reset spring is fixedly connected between the outer extension frame and the side support leg. One end of the outer wall of the extension bar away from the outer extension frame is fixedly connected with a thick elastic strip. One side of the extension bar close to the side clamping frame is fixedly connected with a connecting clamping ball. The side clamping frame is used in corresponding cooperation with the connecting clamping ball. The elastic force of the two reset springs and the resistance between the connecting clamping ball and the side clamping frame are less than the elastic force of the pulling spring;

[0020] Among them, after subtracting the elastic force of the two reset springs and the resistance between the side clamping frame and the connecting clamping ball from the elastic force of the pulling spring, the remaining elastic force of the pulling spring, the gravity of the transmission device and the movable sliding plate itself are added together, which is greater than the elastic force of the two spring coils.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] In the above solution, after the injection molded part is demolded, it will fall to the bottom of the mold clamping frame, pass through the discharge port and fall onto the movable sliding plate, and the injection molded part will slide from the movable sliding plate onto the transmission device to transfer the injection molded part to the next process. By this way, it is avoided that the injection molded part directly falls from the discharge port onto the transmission device, and the gravity generated when the injection molded part is demolded and falls onto the transmission device is reduced. When the output end of the driving component contracts and drives the mold clamping plate to move a certain distance, the mold clamping plate will abut against the abutting strip. By continuously moving the mold clamping plate towards the driving component, two sliding blocks will be pushed to slide inside the two movable grooves respectively, so that the push-pull round rod penetrates and slides through the connecting strip, and synchronously drives the connecting vertical bar to slide inside the strip-shaped sliding hole. Thus, the connecting vertical bar is driven by the double-rod push-pull frame to penetrate and slide through the spring cylinder, and at the same time, the pulling spring is compressed. Then, through the connection between the movable pull bar and the two connecting chute blocks, the movable sliding plate is pushed to rotate at a position near the discharge port at the bottom of the mold clamping frame, so that the included angle between the movable sliding plate and the bottom of the mold clamping frame becomes smaller, and the contact surface of the movable sliding plate is closer to the discharge port, further reducing the distance between the discharge port and the contact surface of the movable sliding plate, thereby reducing the gravity generated when the injection molded part falls downward. Moreover, after the injection molded part is demolded, it will first contact the two buffer strips, and the gravity of the falling injection molded part is absorbed by the two support springs, greatly reducing the gravity generated when the injection molded part falls onto the movable sliding plate. Thus, through the above cooperation method, the gravity generated by the falling of the injection molded part is reduced. When the injection molded part falls downward after demolding, the phenomenon that the injection molded part is broken and other phenomena affecting the quality of the injection molded part due to the gravity generated when the injection molded part falls and the characteristic that the injection molded part material is relatively brittle due to incomplete cooling and shaping is greatly reduced, thereby improving the qualified rate of the injection molded part, reducing the material waste caused by the large qualified rate of the injection molded part, and improving the environmental protection in the production process of the injection molded part.

[0023] During the process of controlling the closing of the moving mold and the fixed mold by the driving component, the thrust applied by the closing template to the abutting strip will gradually disappear. Thus, the force that pulls the spring back to its original position after compression will pull the through slider, double-rod push-pull frame, connecting vertical bar, push-pull round rod, and sliding block to return to their original positions. Then, through the connection between the movable pull bar and the connecting chute block, the movable slide plate is pulled to rotate at the bottom of the mold closing frame, increasing the angle between the movable slide plate and the bottom of the mold closing frame, and increasing the distance between the contact surface of the movable slide plate and the discharge port. When the injection molded part lands on the movable slide plate and the bottom of the injection molded part abuts against the movable slide plate while the upper half of the injection molded part rests on the inner wall of the discharge port, increasing the distance between the contact surface of the movable slide plate and the discharge port facilitates the complete landing of the injection molded part on the movable slide plate. At the same time, by increasing the angle between the movable slide plate and the mold closing frame, the gravity of the movable slide plate sliding downward can also be increased, preventing the injection molded part from being difficult to slide onto the conveying device due to excessive resistance on the contact surface of the movable slide plate. When the combined gravity of the elastic force of the pulling spring, the conveying device, and the movable slide plate itself is greater than the elastic force of the two spring coils, the two connecting strip-shaped holes can be compressed when the pulling spring pulls the movable slide plate to move and the bottom of the movable slide plate presses on the surface of the movable groove, avoiding affecting the movement of the movable slide plate when the distance between the conveying device and the bottom of the movable slide plate is always close.

[0024] When pushing the limit slide hole frame through the combined template to synchronously move the push-pull round rod, connecting vertical bar, and side clamping frame, when the side clamping frame moves inside the side slide hole and approaches the thick elastic strip, the side clamping frame will abut against the connecting clamping ball. Through the continuous movement of the side clamping frame, continuous pressure will be applied to the connecting clamping ball. Since the connecting clamping ball is curved, the force applied between the side clamping frame and the connecting clamping ball will cause slight deformation of the thick elastic strip, allowing the side clamping frame to pass through the connecting clamping ball and enter between the connecting clamping ball and the extension strip. When the injection molded part is stuck between the inside of the discharge port and the movable slide plate, during the process of the moving die approaching the fixed die, when the side clamping frame is stuck between the connecting clamping ball and the extension strip, it will pull the connection between the inner sliding frame and the extension strip to slide inside the communicating slide hole, causing the two inner sliding frames and the pushing rollers to slide inside the receiving cavity towards the inside of the discharge port, thereby pushing the injection molded part placed on the side close to the pushing roller to move, changing the posture of the injection molded part inside the discharge port, so that the injection molded part can fall onto the movable slide plate. When the side clamping frame pulls the anti-jamming mechanism to move a certain distance, the connection between the inner sliding frame and the extension strip will abut against the inner wall of the communicating slide hole. The continuous pulling force of the pulling spring on the connecting vertical bar will cause the side clamping frame to pass through the connecting clamping ball again, causing the side clamping frame to leave between the connecting clamping ball and the extension strip. Then, the two return springs will drive the extension strip and the inner sliding frame to reset, causing the pushing rollers to retract back inside the receiving cavity, avoiding affecting the discharge of subsequent injection molded parts and reducing the probability of the injection molded part being stuck inside the discharge port. When the moving die moves towards the fixed die and closes with the fixed die, the abutting strip loses the thrust. When the sliding block is pulled by the pulling spring and abuts against the inner wall of the side of the movable groove close to the fixed die, it will stop moving. The combined template will continue to move with the thrust applied by the driving component. The two extension sliding rods will penetrate through the abutting strip and slide, compressing the strong spring, thereby closing the moving die and the fixed die. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0026] Figure 1 It is a three-dimensional structural schematic diagram of an environmentally friendly injection molded part injection device;

[0027] Figure 2 It is a partial cross-sectional view of an environmentally friendly injection molded part injection device;

[0028] Figure 3 It is a schematic diagram of the main body of an environmentally friendly injection molded part injection device;

[0029] Figure 4 It is a schematic diagram of the bottom structure of the main body of an environmentally friendly injection molded part injection device;

[0030] Figure 5Schematic diagram of the mold clamping mechanism of an environmentally friendly injection molded part injection device;

[0031] Figure 6 Schematic diagram of the discharging mechanism of an environmentally friendly injection molded part injection device;

[0032] Figure 7 Schematic diagram of the moving mechanism of an environmentally friendly injection molded part injection device;

[0033] Figure 8 is Figure 4 The enlarged view of part A in

[0034] [Reference numerals]

[0035] 1. Main body; 101. Injection molding component; 102. Mold clamping frame; 103. Fixed mold; 104. Connecting bar; 105. Moving slot; 106. Discharging port; 107. Strip-shaped sliding hole; 108. Side sliding hole; 109. Storage cavity; 110. Connecting sliding hole; 111. Side support leg; 112. Connecting strip-shaped hole; 113. Lower pressing slider; 114. Spring coil; 115. Transmission device; 116. Jacking column; 2. Mold clamping mechanism; 201. Driving component; 202. Mold clamping plate; 203. Connecting round rod; 204. Moving mold; 205. Opposing sliding plate; 206. Demolding push rod; 207. Extending sliding rod; 208. Strong spring; 3. Discharging mechanism; 301. Movable sliding plate; 302. Fitting moving hole; 303. Buffer strip; 304. Limiting frame; 305. Support spring; 306. Connecting sliding groove block; 307. Movable pull bar; 4. Moving mechanism; 401. Limiting sliding hole frame; 402. Spring cylinder; 403. Through sliding rod; 404. Pulling spring; 405. Double-rod push-pull frame; 406. Connecting vertical bar; 407. Side clamping frame; 408. Push-pull round rod; 409. Sliding block; 410. Opposing strip; 5. Anti-jamming mechanism; 501. Inner sliding frame; 502. Pushing roller; 503. Extending strip; 504. Thick elastic strip; 505. Connecting ball; 506. Outer extending frame; 507. Return spring.

[0036] As shown in the figure, in order to clearly show the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic purposes and is not intended to limit the present invention to this specific structure, device and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs. Detailed implementation manners

[0037] The following will describe in detail an environmentally friendly injection molding device for injection molded parts provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0038] It should be noted that in the specification, references to "one embodiment", "an embodiment", "exemplary embodiment", "some embodiments", etc. indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Additionally, when combining an embodiment to describe a specific feature, structure, or characteristic, implementing such a feature, structure, or characteristic in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0039] Generally, terms can be understood, at least in part, from their use in the context. For example, at least in part depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, can allow for the existence of other factors that may not be explicitly described.

[0040] It can be understood that the meanings of "on...", "above...", and "over..." in the present invention should be interpreted in the broadest manner, such that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above..." or "over..." not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0041] In addition, spatial relative terms such as "under...", "below...", "lower", "above...", "upper", etc. are used herein for convenience of description to describe the relationship of one element or feature to another or other elements or features, as shown in the accompanying drawings. Spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device can be oriented in other ways, and the spatial relative descriptive terms used herein can be similarly interpreted accordingly.

[0042] Embodiment 1, as Figures 1 to 8As shown in the figure, an embodiment of the present invention provides an environmentally friendly injection molding device for injection molded parts, including a main body 1 and an injection molding assembly 101. The injection molding assembly 101 is fixedly connected to the top of the main body 1. One side of the main body 1 close to the output end of the injection molding assembly 101 is fixedly connected with a mold clamping frame 102. One inner wall of the mold clamping frame 102 close to the injection molding assembly 101 is fixedly connected with a fixed mold 103. The bottom of the mold clamping frame 102 is penetrated and provided with a discharge port 106. The top of the mold clamping frame 102 is fixedly connected with two connecting bars 104. Activity grooves 105 are opened on one side of the two connecting bars 104 close to each other. The activity grooves 105 are distributed at one end of the connecting bars 104 far from the main body 1. Two strip-shaped sliding holes 107 are penetrated and opened at one end of the top of the main body 1 close to the mold clamping frame 102. Side sliding holes 108 are opened on the outer walls of the opposite sides of the main body 1. The side sliding holes 108 are communicated with the strip-shaped sliding holes 107. A storage cavity 109 is opened on one inner wall of the discharge port 106 far from the main body 1. Communication sliding holes 110 are opened on the outer walls of the opposite sides of the mold clamping frame 102. The communication sliding holes 110 are communicated with the storage cavity 109. The length of the communication sliding holes 110 is less than the length of the side sliding holes 108. Two side support legs 111 are fixedly connected to one end of the bottom of the mold clamping frame 102 far from the main body 1. Connecting strip-shaped holes 112 are penetrated and opened on the outer walls of the two side support legs 111. Pressing sliders 113 are slidably connected inside the two connecting strip-shaped holes 112. Spring rings 114 are fixedly connected between the pressing sliders 113 and the bottoms of the connecting strip-shaped holes 112. A transmission device 115 is fixedly connected between the two pressing sliders 113. A top column 116 is fixedly connected to the center of one side of the mold clamping frame 102 far from the injection molding assembly 101;

[0043] As Figure 1 , Figure 2 and Figure 5As shown in the figure, it includes a mold clamping mechanism 2. The mold clamping mechanism 2 is arranged inside the mold clamping frame 102. The mold clamping mechanism 2 cooperates with the fixed mold 103 for the molding of injection molded parts and is also used for the demolding of injection molded parts. The mold clamping mechanism 2 includes a driving component 201. The driving component 201 is fixedly connected to the side of the mold clamping frame 102 away from the injection molding component 101. The output end of the driving component 201 slides through the side of the mold clamping frame 102 away from the injection molding component 101. The output end of the driving component 201 is fixedly connected with a mold clamping plate 202. On the side of the mold clamping plate 202 away from the driving component 201, four connecting round rods 203 are fixedly connected. On the side of the four connecting round rods 203 away from the mold clamping plate 202, a moving mold 204 is fixedly connected. The moving mold 204 is used in cooperation with the fixed mold 103. A counteracting slide plate 205 is slidably connected to the outer walls of the four connecting round rods 203. On the side of the counteracting slide plate 205 close to the moving mold 204, two groups of demolding push rods 206 are fixedly connected. Each group of demolding push rods 206 slides through the moving mold 204. Two groups of springs are arranged between the moving mold 204 and the counteracting slide plate 205. A through hole is opened at a position on the mold clamping plate 202 corresponding to the ejector pin 116. The ejector pin 116 abuts against the counteracting slide plate 205. Two extension slide rods 207 are fixedly connected to the side of the mold clamping plate 202 close to the driving component 201. A strong spring 208 is fixedly connected to the outer walls of the two extension slide rods 207. After the moving mold 204 and the fixed mold 103 are combined, injection molding is carried out into the mold cavity between the combined moving mold 204 and fixed mold 103 through the injection molding component 101. After the injection molded part is cooled and solidified for a certain period of time, the driving component 201 drives the mold clamping plate 202 to move in the mold clamping frame 102 in the direction of the driving component 201. The moving mold 204 is driven to move synchronously through the connecting round rods 203, so that the moving mold 204 is separated from the fixed mold 103, and the injection molded part is taken out synchronously by the moving mold 204. After the mold clamping plate 202 moves a certain distance, the mold clamping plate 202 will sleeve outside the ejector pin 116, so that the ejector pin 116 abuts against the counteracting slide plate 205. When the mold clamping plate 202 continues to move in the direction of the driving component 201, the movement will stop due to the abutment between the counteracting slide plate 205 and the ejector pin 116, so that the moving mold 204 slides on the outer walls of the four demolding push rods 206, and the spring between the moving mold 204 and the counteracting slide plate 205 is compressed. Thus, during the continuous movement of the moving mold 204 following the mold clamping plate 202, the injection molded part is separated from the moving mold 204 for demolding by the abutment of the demolding push rods 206 against the edge of the injection molded part;

[0044] As Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8As shown in the figure, it includes a discharging mechanism 3. The discharging mechanism 3 is arranged at the bottom of the mold clamping frame 102. When the injection molded part is demolded and passes through the discharging port 106 and falls to the bottom of the mold clamping frame 102, the discharging mechanism 3 is used to buffer the gravity generated when the injection molded part falls. The discharging mechanism 3 includes a movable sliding plate 301. The movable sliding plate 301 is rotatably connected to the bottom of the mold clamping frame 102. After the injection molded part is demolded, it will fall to the bottom of the mold clamping frame 102, pass through the discharging port 106 and fall onto the movable sliding plate 301, and the injection molded part will slide from the movable sliding plate 301 onto the transmission device 115 to transmit the injection molded part to the next process. The movable sliding plate 301 is distributed at one end of the discharging port 106 close to the main body 1. Two fitting movable holes 302 are formed through the outer wall of the movable sliding plate 301 near one end of the discharging port 106. Buffer strips 303 are rotatably connected to the inner ends of the two fitting movable holes 302 near the discharging port 106. A limiting frame 304 is fixedly connected to a position on the outer wall of the movable sliding plate 301 below the buffer strip 303. A support spring 305 is fixedly connected between the limiting frame 304 and the buffer strip 303. Two connecting chute blocks 306 are fixedly connected to the outer end of the movable sliding plate 301 away from the mold clamping frame 102. An activity pull bar 307 is movably connected between the two connecting chute blocks 306. By driving the connecting vertical bar 406 to slide through the spring cylinder 402 by the double-rod push-pull frame 405, the pulling spring 404 is compressed at the same time. Then, through the connection between the activity pull bar 307 and the two connecting chute blocks 306, the movable sliding plate 301 is pushed to rotate at a position near the discharging port 106 at the bottom of the mold clamping frame 102, so that the included angle between the movable sliding plate 301 and the bottom of the mold clamping frame 102 becomes smaller, making the contact surface of the movable sliding plate 301 closer to the discharging port 106, further reducing the distance between the contact surface of the discharging port 106 and the movable sliding plate 301, thereby reducing the gravity generated when the injection molded part falls downward. And after the injection molded part is demolded, it will first contact the two buffer strips 303, and the gravity of the falling injection molded part is absorbed by the two support springs 305, greatly reducing the gravity generated when the injection molded part falls onto the movable sliding plate 301;

[0045] As Figure 1 , Figure 2 , Figures 4 to 7As shown in the figure, it includes a movable mechanism 4. The movable mechanism 4 is arranged on the discharging mechanism 3. The movable mechanism 4 cooperates with the mold clamping mechanism 2 and the discharging mechanism 3 to further reduce the gravity of the injection molded part falling after demolding, and at the same time make the injection molded part falling on the discharging mechanism 3 slide downwards. The movable mechanism 4 includes a limit sliding hole frame 401. The limit sliding hole frame 401 is fixedly connected to the bottom of the main body 1. The movable pull bar 307 slides through one end of the limit sliding hole frame 401 away from the main body 1. One end of the outer wall of the limit sliding hole frame 401 away from the main body 1 is fixedly connected with a spring cylinder 402. One end of the movable pull bar 307 away from the movable sliding plate 301 is fixedly connected with a through rod 403. The through rod 403 slides through the spring cylinder 402. A pulling spring 404 is fixedly connected between the inner wall of the spring cylinder 402 close to the movable sliding plate 301 and the connection part of the through rod 403 and the movable pull bar 307. One side of the through rod 403 close to the movable sliding plate 301 is fixedly connected with a double-rod push-pull frame 405. One side of the double-rod push-pull frame 405 away from the through rod 403 is fixedly connected with two connecting vertical bars 406. The two connecting vertical bars 406 respectively slide through two strip-shaped sliding holes 107. The outer wall of the connecting vertical bar 406 is fixedly connected with a side clamping frame 407. The side clamping frame 407 is slidably connected to the inside of the side sliding hole 108. One side of the two connecting vertical bars 406 close to the connecting bar 104 is fixedly connected with a push-pull round rod 408. One side of the two push-pull round rods 408 away from the connecting vertical bar 406 is fixedly connected with a sliding block 409. The push-pull round rod 408 slides through the connecting bar 104 into the inside of the movable groove 105. The sliding block 409 is slidably connected to the inside of the movable groove 105. A resisting bar 410 is fixedly connected between the two sliding blocks 409. The resisting bar 410 abuts against the mold clamping plate 202. The extending rod 207 slides through the resisting bar 410, and the strong spring 208 is fixedly connected with the resisting bar 410. During the process of the movable mold 204 and the fixed mold 103 being clamped by the driving component 201, the thrust exerted by the mold clamping plate 202 on the resisting bar 410 will gradually disappear. Thus, the force of the pulling spring 404 reset after being compressed will pull the through rod 403, the double-rod push-pull frame 405, the connecting vertical bar 406, the push-pull round rod 408 and the sliding block 409 to reset. Thus, through the connection between the movable pull bar 307 and the connection sliding groove block 306, the movable sliding plate 301 is pulled to rotate at the bottom of the mold clamping frame 102, so that the angle between the movable sliding plate 301 and the bottom of the mold clamping frame 102 increases.

[0046] The working principle of the technical solution provided by the present invention is as follows:

[0047] After the movable mold 204 is combined with the fixed mold 103, the injection molding assembly 101 is used to inject plastic into the cavity between the combined movable mold 204 and fixed mold 103. After the injection molded part is cooled and solidified for a certain period of time, the driving assembly 201 drives the mold clamping plate 202 to move in the mold clamping frame 102 in the direction of the driving assembly 201. The connecting round rod 203 drives the movable mold 204 to move synchronously, separating the movable mold 204 from the fixed mold 103, and the movable mold 204 synchronously takes out the injection molded part. After the mold clamping plate 202 moves a certain distance, the mold clamping plate 202 will sleeve outside the ejector pin 116, making the ejector pin 116 abut against the abutting slide plate 205. When the mold clamping plate 202 continues to move in the direction of the driving assembly 201, it will stop moving due to the abutment of the abutting slide plate 205 and the ejector pin 116, causing the movable mold 204 to slide on the outer walls of the four demolding push rods 206 and compressing the spring between the movable mold 204 and the abutting slide plate 205. Thus, during the continuous movement of the movable mold 204 following the mold clamping plate 202, the injection molded part is separated from the movable mold 204 for demolding by the demolding push rod 206 abutting against the edge of the injection molded part;

[0048] After the injection molded part is demolded, it will fall to the bottom of the mold clamping frame 102, pass through the discharge port 106 and fall onto the movable slide plate 301, and the injection molded part slides from the movable slide plate 301 onto the conveyor device 115 to transfer the injection molded part to the next process. When the output end of the driving assembly 201 contracts and drives the mold clamping plate 202 to move a certain distance, the mold clamping plate 202 will abut against the abutting strip 410. By continuously moving the mold clamping plate 202 in the direction of the driving assembly 201, it will push the two sliding blocks 409 to slide in the two movable slots 105 respectively, causing the push-pull round rod 408 to slide through the connecting strip 104, synchronously driving the connecting vertical strip 406 to slide in the strip-shaped sliding hole 107. Thus, the double-rod push-pull frame 405 drives the connecting vertical strip 406 to slide through the spring cylinder 402, compressing the pulling spring 404 at the same time. Then, through the connection between the movable pull bar 307 and the two connecting chute blocks 306, the movable slide plate 301 is pushed to rotate at a position near the discharge port 106 at the bottom of the mold clamping frame 102, making the angle between the movable slide plate 301 and the bottom of the mold clamping frame 102 smaller, making the contact surface of the movable slide plate 301 closer to the discharge port 106, further reducing the distance between the contact surface of the discharge port 106 and the movable slide plate 301, thereby reducing the gravity generated by the injection molded part falling downward. And after the injection molded part is demolded, it will first contact the two buffer strips 303, and the gravity of the falling injection molded part is absorbed by the two support springs 305, greatly reducing the gravity generated by the injection molded part falling onto the movable slide plate 301;

[0049] During the process of controlling the moving die 204 to close the mold with the fixed die 103 by the driving component 201, the thrust applied by the mold clamping plate 202 to the abutting strip 410 will gradually disappear. Thus, the force that pulls the spring 404 to reset after compression will pull the through slide bar 403, the double-rod push-pull frame 405, the connecting vertical bar 406, the push-pull round bar 408, and the sliding block 409 to reset. Thus, through the connection between the movable pull bar 307 and the connecting chute block 306, the movable slide plate 301 is pulled to rotate at the bottom of the mold clamping frame 102, increasing the angle between the movable slide plate 301 and the bottom of the mold clamping frame 102, and increasing the distance between the contact surface of the movable slide plate 301 and the discharge port 106. When the injection molded part lands on the movable slide plate 301 and the bottom of the injection molded part abuts against the movable slide plate 301 while the upper half of the injection molded part rests on the inner wall of the discharge port 106, by increasing the distance between the contact surface of the movable slide plate 301 and the discharge port 106, it is convenient for the injection molded part to completely land on the movable slide plate 301. At the same time, by increasing the angle between the movable slide plate 301 and the mold clamping frame 102, the gravity of the movable slide plate 301 sliding downward can also be increased, avoiding the injection molded part from being difficult to slide onto the transmission device 115 due to excessive resistance on the contact surface of the movable slide plate 301. Due to the combined gravity of the elastic force of the pulling spring 404, the transmission device 115, and the movable slide plate 301 itself being greater than the elastic force of the two spring coils 114, when the pulling spring 404 pulls the movable slide plate 301 to move and the bottom of the movable slide plate 301 presses on the surface of the movable groove 105, the two connecting strip holes 112 can be compressed, and the movement of the movable slide plate 301 is not affected under the condition that the distance between the transmission device 115 and the bottom of the movable slide plate 301 is always close.

[0050] Example 2, such as Figure 1 、 Figure 2 and Figure 7As shown in the figure, an anti-jamming mechanism 5 is arranged inside the storage cavity 109. The anti-jamming mechanism 5 includes two inner sliding frames 501. Both of the two inner sliding frames 501 are slidably connected inside the storage cavity 109. A pushing roller 502 is rotatably connected between the two inner sliding frames 501. Extension bars 503 are fixedly connected to one side of the two inner sliding frames 501 away from each other. The connection part between the inner sliding frame 501 and the extension bar 503 is slidably connected inside the communication sliding hole 110. An outer extension frame 506 is fixedly connected to the side of the extension bar 503 away from the inner sliding frame 501. A return spring 507 is fixedly connected between the outer extension frame 506 and the side support leg 111. A thick elastic strip 504 is fixedly connected to one end of the outer wall of the extension bar 503 away from the outer extension frame 506. A connecting ball 505 is fixedly connected to the side of the extension bar 503 close to the side clamping frame 407. The side clamping frame 407 is correspondingly used in cooperation with the connecting ball 505. The elastic force of the two return springs 507 and the resistance between the connecting ball 505 and the side clamping frame 407 are less than the elastic force of the pulling spring 404. During the approaching movement of the moving die 204 and the fixed die 103, when the side clamping frame 407 is stuck between the connecting ball 505 and the extension bar 503, it will pull the connection part between the inner sliding frame 501 and the extension bar 503 to slide inside the communication sliding hole 110, so that the two inner sliding frames 501 and the pushing roller 502 slide inside the storage cavity 109 towards the discharge port 106, thereby pushing the injection molded part placed on the side close to the pushing roller 502 to move, changing the posture of the injection molded part inside the discharge port 106, so that the injection molded part can fall onto the movable slide plate 301. When the side clamping frame 407 pulls the anti-jamming mechanism 5 to move a certain distance, the connection part between the inner sliding frame 501 and the extension bar 503 will abut against the inner wall of the communication sliding hole 110. The continuous pulling force of the pulling spring 404 on the connecting vertical bar 406 will make the side clamping frame 407 pass by the connecting ball 505 again, so that the side clamping frame 407 leaves between the connecting ball 505 and the extension bar 503. Then, the two return springs 507 drive the extension bar 503 and the inner sliding frame 501 to reset, so that the pushing roller 502 retracts into the storage cavity 109 again. Among them, after subtracting the elastic forces of the two return springs 507 and the resistance between the side clamping frame 407 and the connecting ball 505 from the elastic force of the pulling spring 404, the remaining elastic force of the pulling spring 404, the gravity of the transmission device 115 and the movable slide plate 301 itself added together are greater than the elastic forces of the two spring coils 114.

[0051] The working principle of the technical solution provided by the present invention is as follows:

[0052] When the limiting sliding hole frame 401 is pushed by the combined template 202 so that the push-pull round rod 408, the connecting vertical strip 406 and the side clamping frame 407 move synchronously, when the side clamping frame 407 moves inside the side sliding hole 108 and approaches the thick elastic strip 504, the side clamping frame 407 will abut against the connecting clamping ball 505. Through the continuous movement of the side clamping frame 407, continuous pressure will be applied to the connecting clamping ball 505. Since the connecting clamping ball 505 has a curved surface, the force applied between the side clamping frame 407 and the connecting clamping ball 505 will cause the thick elastic strip 504 to undergo slight deformation, enabling the side clamping frame 407 to pass through the connecting clamping ball 505 and enter between the connecting clamping ball 505 and the extension strip 503. When the injection molded part is stuck between the discharge port 106 and the movable sliding plate 301, during the approaching movement of the moving mold 204 and the fixed mold 103, when the side clamping frame 407 is stuck between the connecting clamping ball 505 and the extension strip 503, it will pull the connection between the inner sliding frame 501 and the extension strip 503 to slide within the communication sliding hole 110, causing the two inner sliding frames 501 and the pushing rollers 502 to slide inside the storage cavity 109 towards the inside of the discharge port 106, thereby pushing the injection molded part placed on the side close to the pushing roller 502 to move, changing the posture of the injection molded part inside the discharge port 106, so that the injection molded part can fall onto the movable sliding plate 301. When the side clamping frame 407 pulls the anti jamming mechanism 5 to move a certain distance, the connection between the inner sliding frame 501 and the extension strip 503 will abut against the inner wall of the communication sliding hole 110. Through the continuous pulling force of the pulling spring 404 on the connecting vertical strip 406, the side clamping frame 407 will pass through the connecting clamping ball 505 again, causing the side clamping frame 407 to leave between the connecting clamping ball 505 and the extension strip 503. Then, the two return springs 507 drive the extension strip 503 and the inner sliding frame 501 to reset, causing the pushing rollers 502 to retract back into the storage cavity 109, avoiding affecting the discharge of subsequent injection molded parts. When the moving mold 204 moves towards the fixed mold 103 and closes the mold with the fixed mold 103, the abutting strip 410 loses the thrust. When the sliding block 409 is pulled by the pulling spring 404 and abuts against the inner wall of the side of the movable groove 105 close to the fixed mold 103, it will stop moving. The combined template 202 will continue to move with the thrust applied by the driving component 201. The two extension sliding rods 207 will penetrate through the abutting strip 410 and slide, compressing the strong spring 208, thereby closing the mold between the moving mold 204 and the fixed mold 103.

[0053] The present invention covers any substitutions, modifications, equivalent methods, and solutions made within the essence and scope of the present invention. To enable the public to have a thorough understanding of the present invention, specific details are elaborated in the following preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention even without these detailed descriptions. Additionally, to avoid unnecessary confusion to the essence of the present invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0054] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An environmentally friendly injection molding device for injection molded parts, comprising a main body (1) and an injection molding assembly (101). The injection molding assembly (101) is fixedly connected to the top of the main body (1). One side of the main body (1) close to the output end of the injection molding assembly (101) is fixedly connected with a mold clamping frame (102). A fixed mold (103) is fixedly connected to the inner wall of one side of the mold clamping frame (102) close to the injection molding assembly (101). A discharge port (106) is formed through the bottom of the mold clamping frame (102). It is characterized in that, Further included are; A mold clamping mechanism (2), which is arranged inside the mold clamping frame (102). The mold clamping mechanism (2) cooperates with the fixed mold (103) for the molding of injection molded parts and is also used for the demolding of injection molded parts; A discharging mechanism (3), which is arranged at the bottom of the mold clamping frame (102). When the injection molded part passes through the discharging port (106) and falls to the bottom of the mold clamping frame (102) after demolding, the discharging mechanism (3) is used to buffer the gravity generated when the injection molded part falls; A movable mechanism (4), which is arranged on the discharging mechanism (3). The movable mechanism (4) cooperates with the mold clamping mechanism (2) and the discharging mechanism (3) to further reduce the gravity of the demolded injection molded part when it falls and at the same time make the injection molded part that falls on the discharging mechanism (3) slide downwards; On the inner wall of one side of the discharging port (106) far away from the main body (1), a storage cavity (109) is opened; A anti - jamming mechanism (5) is arranged inside the storage cavity (109). The anti - jamming mechanism (5) includes two inner sliding frames (501). Both of the two inner sliding frames (501) are slidably connected inside the storage cavity (109). A pushing roller (502) is rotatably connected between the two inner sliding frames (501). On the mutually - remote sides of the two inner sliding frames (501), extension bars (503) are fixedly connected respectively. The connection part of the inner sliding frame (501) and the extension bar (503) is slidably connected inside the communication sliding hole (110). On the side of the extension bar (503) far away from the inner sliding frame (501), an outer extension frame (506) is fixedly connected; A return spring (507) is fixedly connected between the outer extension frame (506) and the side support leg (111). At one end of the outer wall of the extension bar (503) far away from the outer extension frame (506), a thick elastic strip (504) is fixedly connected. On the side of the extension bar (503) close to the side clamping frame (407), a connecting clamping ball (505) is fixedly connected. The side clamping frame (407) and the connecting clamping ball (505) are used in corresponding cooperation. The elastic force of the two return springs (507) and the resistance between the connecting clamping ball (505) and the side clamping frame (407) are less than the elastic force of the pulling spring (404).

2. The environmentally friendly injection molding equipment for injection molded parts according to claim 1, characterized in that, Two connecting bars (104) are fixedly connected to the top of the mold clamping frame (102). On the mutually - close sides of the two connecting bars (104), moving grooves (105) are opened respectively. The moving grooves (105) are distributed at one end of the connecting bars (104) far away from the main body (1). At one end of the top of the main body (1) close to the mold clamping frame (102), two strip - shaped sliding holes (107) are penetrated. On the outer walls of the opposite sides of the main body (1), side sliding holes (108) are opened. The side sliding holes (108) are communicated with the strip - shaped sliding holes (107). On the outer walls of the opposite sides of the mold clamping frame (102), communication sliding holes (110) are opened. The communication sliding holes (110) are communicated with the storage cavity (109). The length of the communication sliding holes (110) is less than the length of the side sliding holes (108).

3. An environmentally friendly injection molding device for injection molded parts according to claim 2, characterized in that, One end of the bottom of the mold clamping frame (102) far from the main body (1) is fixedly connected with two side support legs (111). Connecting strip holes (112) are formed through the outer walls of the two side support legs (111). Pressing sliders (113) are slidably connected inside the two connecting strip holes (112). A spring coil (114) is fixedly connected between the pressing slider (113) and the bottom of the connecting strip hole (112). A transmission device (115) is fixedly connected between the two pressing sliders (113). A top column (116) is fixedly connected to the center of the side of the mold clamping frame (102) far from the injection molding assembly (101).

4. An environmentally friendly injection molding device for injection molded parts according to claim 3, characterized in that, The mold clamping mechanism (2) includes a driving component (201). The driving component (201) is fixedly connected to the side of the mold clamping frame (102) far from the injection molding assembly (101). The output end of the driving component (201) slidably penetrates through the side of the mold clamping frame (102) far from the injection molding assembly (101). A mold clamping plate (202) is fixedly connected to the output end of the driving component (201). Four connecting round rods (203) are fixedly connected to the side of the mold clamping plate (202) far from the driving component (201). A moving mold (204) is fixedly connected to the side of the four connecting round rods (203) far from the mold clamping plate (202). The moving mold (204) is used in cooperation with the fixed mold (103). A resisting sliding plate (205) is slidably connected to the outer walls of the four connecting round rods (203).

5. An environmentally friendly injection molding device for injection molded parts according to claim 4, characterized in that, Two groups of demolding push rods (206) are fixedly connected to the side of the resisting sliding plate (205) close to the moving mold (204). Each group of demolding push rods (206) slidably penetrates through the moving mold (204). Two groups of springs are arranged between the moving mold (204) and the resisting sliding plate (205). A through hole is formed at a position corresponding to the top column (116) on the mold clamping plate (202). The top column (116) abuts against the resisting sliding plate (205). Two extending sliding rods (207) are fixedly connected to the side of the mold clamping plate (202) close to the driving component (201). A strong spring (208) is fixedly connected to the outer walls of the two extending sliding rods (207).

6. An environmentally friendly injection molding device for injection molded parts according to claim 5, characterized in that, The discharging mechanism (3) includes a movable material sliding plate (301). The movable material sliding plate (301) is rotatably connected to the bottom of the mold clamping frame (102). The movable material sliding plate (301) is distributed at one end of the discharging port (106) close to the main body (1). Two fitting movable holes (302) are penetrated and opened at one end of the outer wall of the movable material sliding plate (301) close to the discharging port (106). Buffer bars (303) are rotatably connected to one ends of the two fitting movable holes (302) close to the discharging port (106). A limiting frame (304) is fixedly connected to a position on the outer wall of the movable material sliding plate (301) below the buffer bar (303). A support spring (305) is fixedly connected between the limiting frame (304) and the buffer bar (303). Two connecting chute blocks (306) are fixedly connected to one end of the outer wall of the movable material sliding plate (301) away from the mold clamping frame (102). An activity pull bar (307) is movably connected between the two connecting chute blocks (306).

7. An environmentally friendly injection molding device for injection molded parts according to claim 6, characterized in that, The activity mechanism (4) includes a limiting sliding hole frame (401). The limiting sliding hole frame (401) is fixedly connected to the bottom of the main body (1). The activity pull bar (307) slidably penetrates through one end of the limiting sliding hole frame (401) away from the main body (1). A spring cylinder (402) is fixedly connected to one end of the outer wall of the limiting sliding hole frame (401) away from the main body (1). A penetrating slide bar (403) is fixedly connected to one end of the activity pull bar (307) away from the movable material sliding plate (301). The penetrating slide bar (403) slidably penetrates through the spring cylinder (402). A pulling spring (4,04) is fixedly connected between the inner wall of the spring cylinder (402) close to the movable material sliding plate (301) and the connection positions of the penetrating slide bar (403) and the activity pull bar (307). A double-bar push-pull frame (405) is fixedly connected to one side of the penetrating slide bar (403) close to the movable material sliding plate (301). Two connecting vertical bars (406) are fixedly connected to one side of the double-bar push-pull frame (405) away from the penetrating slide bar (403).

8. An environmentally friendly injection molding device for injection molded parts according to claim 7, characterized in that, The two connecting vertical bars (406) respectively slidably penetrate through two strip-shaped slide holes (107). A side clamping frame (407) is fixedly connected to the outer wall of the connecting vertical bar (406). The side clamping frame (407) is slidably connected to the inside of the side slide hole (108). Two push-pull round bars (408) are fixedly connected to one side of the two connecting vertical bars (406) close to the connecting bar (104). Two sliding blocks (409) are fixedly connected to one sides of the two push-pull round bars (408) away from the connecting vertical bars (406). The push-pull round bar (408) slidably penetrates through the connecting bar (104) into the activity groove (105). The sliding block (409) is slidably connected to the inside of the activity groove (105). An abutting bar (410) is fixedly connected between the two sliding blocks (409). The abutting bar (410) abuts against the mold clamping plate (202). The extending slide bar (207) slidably penetrates through the abutting bar (410), and the strong spring (208) is fixedly connected to the abutting bar (410).

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