A discharge conveying device for an injection molding machine

Abstract

The present invention discloses a discharging and conveying device for an injection molding machine, which relates to the field of discharging and conveying devices for injection molding machines, and solves the problem that the existing discharging and conveying device for an injection molding machine has a large impact force during use, affecting the product quality. The device includes a base, an output mechanism and a buffer mechanism. The output mechanism includes a lifting frame and an output frame, and the buffer mechanism includes an air-filled box and an air-filled cylinder. A plurality of groups of first air blowing holes are formed in the lifting frame and the output frame. In the present invention, during the process of the moving die moving for injection molding, the output mechanism drives the lifting frame to move up and down, so that when demolding, the lifting frame moves up close to the product. The buffer mechanism is linked to pressurize and inflate the air-filled box, so that the gas is blown out through the first air blowing holes on the inner wall of the lifting frame, reducing the impact force during the falling process of the product. When the lifting frame moves down, the product is conveyed into the output frame for output. At the same time, the air-filled cylinder is linked to pressurize and inflate, so that the first air blowing holes in the output frame blow air, reducing the impact force when the product moves to the output frame.

Description

Technical Field

[0001] The present invention relates to the technical field of the discharging and conveying device of an injection molding machine, and specifically relates to a discharging and conveying device of an injection molding machine. Background Art

[0002] 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. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, inject it to fill the mold cavity, and then cool and mold it. After demolding, it is collected through a conveying device.

[0003] The discharging and conveying device of the existing injection molding machine is relatively fixed in position. During use, generally one end is at the bottom position of the injection mold, and the other end is set obliquely downward to output the product to the required position for collection. However, during the demolding process of the product, the product directly falls onto the conveying device. The distance between the conveying device and the demolding position is relatively far. During the impact process, the injection molded part is prone to deformation. At the same time, since most of the traditional buffer parts are easily worn, and the rubber buffer is prone to deformation when heated, it is difficult to use for buffering on the conveying device. Summary of the Invention

[0004] The purpose of the present invention is to provide a discharging and conveying device of an injection molding machine that is convenient for improving the stability of the output process of the injection molded part and ensuring the product quality, so as to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A discharging and conveying device of an injection molding machine includes a base, an output mechanism, and a buffer mechanism. Two groups of side plates are fixedly connected to the base. The output mechanism includes a lifting frame and an output frame installed between the two groups of side plates. Both the lifting frame and the output frame are inclined. During the process of the moving mold moving for injection molding, the lifting frame is linked to lift, so that when demolding, the lifting frame moves upward close to the product, reducing the falling distance of the product. And when the lifting frame moves downward, the product is conveyed into the output frame for output. The buffer mechanism includes an inflatable box fixedly installed between the two groups of side plates. An air inflation cylinder is fixedly connected to the base. A plurality of groups of first air blowing holes are evenly opened on the inner walls of the lifting frame and the output frame. When the lifting frame moves upward, it is linked to inflate and pressurize the inflatable box, so that the gas is blown out through the first air blowing holes on the inner wall of the lifting frame, reducing the impact force during the falling process of the product. When the lifting frame moves downward, it is linked to pressurize and inflate the air inflation cylinder, so that the first air blowing holes in the output frame blow air, reducing the impact force when the product moves from the lifting frame to the output frame, which is convenient for improving the stability of the output process of the injection molded part and ensuring the product quality.

[0006] Preferably, the buffer mechanism also includes a baffle plate fixedly mounted between the two groups of side plates, and a plurality of second blowing holes are evenly arranged on the side surfaces of the baffle plate, a first connecting groove connected to the first blowing hole on the lifting frame is arranged in the lifting frame, and a second connecting groove connected to the second blowing hole is arranged in the baffle plate, and a conveying member is provided in the inflation box for controlling the gas conveying sequence in the first connecting groove and the second connecting groove when the gas in the inflation box is pressurized, so as to facilitate the linkage to inflate and pressurize the inflation box when the lifting frame moves upward, so that the gas is blown out through the first blowing holes on the inner wall of the lifting frame, thereby reducing the impact force of the product during falling, and when the lifting frame moves downward, the inflation cylinder is linked to pressurize and inflate, so that the first blowing holes in the output frame are blown, thereby reducing the impact force of the product when it moves from the lifting frame to the output frame.

[0007] Preferably, the conveying member includes a first conveying pipe and a second conveying pipe which are connected to the bottom of the inflation box, the first conveying pipe and the second conveying pipe have one end away from the inflation box fixedly connected to the side of the baffle, one end of the second conveying pipe is connected to the second connecting groove, a connecting pipe which can be connected to the first conveying pipe and the first connecting groove is provided in the lifting frame, and an inflatable member for inflating the first conveying pipe and the second conveying pipe is provided in the inflation box, so as to facilitate the control of the gas conveying sequence in the first connecting groove and the second connecting groove when the gas in the inflation box is pressurized.

[0008] Preferably, the inflatable member includes a first sliding plate and a second sliding plate which are slidably connected to the inner wall of the inflation box, a first spring is fixedly connected between the first sliding plate and the second sliding plate, a push rod is fixedly connected to the side of the first sliding plate, an end of the push rod away from the first sliding plate is fixedly connected to a driving plate, a side of the driving plate is fixedly connected to a second spring which is fixedly connected to the inflation box, and a control member for controlling the inflation sequence of the first conveying pipe and the second conveying pipe is provided in the inflation box, so as to facilitate inflation of the first conveying pipe and the second conveying pipe.

[0009] Preferably, the control component includes a control plate fixedly mounted on the bottom of the first sliding plate, a guide frame is fixedly connected to the side of the inflation box, the control plate passes through the second sliding plate and the guide frame, and slides in contact with the second sliding plate, the guide frame and the inner wall of the inflation box, and a control hole that can be connected to the first conveying pipe and the second conveying pipe is opened on the control plate to facilitate controlling the inflation sequence in the first conveying pipe and the second conveying pipe.

[0010] Preferably, the buffer mechanism further includes a lifting rod fixedly installed at the bottom of the lifting frame. The outer wall of the lifting rod is slidably connected to the inner wall of the air cylinder in the vertical direction. The bottom end of the lifting rod is fixedly connected to a third spring fixedly connected to the base. A third communication groove communicating with the first air blowing hole in the output frame is formed in the output frame. A third delivery pipe is fixedly connected to the side surface of the bottom end of the air cylinder. The end of the third delivery pipe away from the air cylinder is fixedly connected to the output frame and communicates with the third communication groove, which is convenient for reducing the impact force when the product is conveyed from the lifting frame to the output frame.

[0011] Preferably, the output mechanism further includes mounting frames installed on both sides of the moving mold. The mounting frames are fixedly connected to the moving mold by bolts. A rotating disk is rotatably connected in the mounting frames. A rotating shaft is coaxially and fixedly connected to the rotating disk. A hairspring fixedly connected to the inner wall of the mounting frames is fixedly connected to the outer wall of the rotating shaft. A rotating frame is fixedly connected to the rotating shaft. A roller is rotatably connected to the rotating frame. A guiding groove capable of guiding the rolling of the outer wall of the roller is formed in the lifting frame, which is convenient for driving the lifting frame to lift during the movement and injection molding of the moving mold, so that the lifting frame moves upward close to the product during demolding, reducing the falling distance of the product, and conveying the product into the output frame for output when the lifting frame moves downward.

[0012] Preferably, a first stop block and a second stop block for limiting the rotation angle of the rotating frame are fixedly connected to the side surface of the mounting frame, which is convenient for limiting the rotation angle of the rotating frame.

[0013] Preferably, a top plate is provided between the two side plates. The top plate is fixedly connected to the top surfaces of the two side plates, which is convenient for protecting the top between the moving mold and the fixed mold and preventing the product from flying out from the upper side.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The discharging and conveying device of an injection molding machine provided by the present invention solves the problems that the existing discharging and conveying device of an injection molding machine is far from the product during use, generates a large impact force, affects the product quality, and has a low service life of the buffer structure. During the process of moving the moving mold for injection molding, the output mechanism drives the lifting frame to lift and lower, so that when demolding, the lifting frame moves upward close to the product, reducing the falling distance of the product. At the same time, the buffer mechanism drives the inflation of the inflation box to pressurize, so that the gas is blown out through the first air blowing holes on the inner wall of the lifting frame, reducing the impact force during the falling process of the product. When the lifting frame moves downward, the product is conveyed into the output frame for output, and at the same time, the air cylinder is driven to pressurize and inflate, so that the first air blowing holes in the output frame blow air, reducing the impact force when the product moves from the lifting frame to the output frame. The overall structure of this conveying device is stable, without the need for an additional drive source, and can automatically achieve an efficient transmission effect during the opening and closing of the moving mold and the fixed mold for injection molding. At the same time, the blowing is used to generate a buffer force to reduce the impact force during impact, ensuring the product quality. The blowing process can also synchronously achieve the effect of cooling and temperature reduction, improving the efficiency of product cooling and forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of a partial structure of the output mechanism of the present invention;

[0018] Figure 3 is Figure 2 an enlarged view of area A in

[0019] Figure 4 It is a schematic diagram of a partial structure of the buffer mechanism of the present invention;

[0020] Figure 5 is Figure 4 an enlarged view of area B in

[0021] Figure 6 It is a sectional view of a partial structure of the buffer mechanism of the present invention;

[0022] Figure 7 is Figure 6 an enlarged view of area C in

[0023] Figure 8 is Figure 6 an enlarged view of area D in

[0024] Figure 9 It is a sectional view of a partial structure of the output mechanism of the present invention;

[0025] Figure 10 is Figure 9 an enlarged view of area E in

[0026] In the figure: 1 - base; 2 - side plate; 3 - lifting frame; 4 - output frame; 5 - inflatable box; 6 - inflator; 7 - first air blowing hole; 8 - baffle; 9 - second air blowing hole; 10 - first communication groove; 11 - second communication groove; 12 - first conveying pipe; 13 - second conveying pipe; 14 - connecting pipe; 15 - inflating member; 16 - first sliding plate; 17 - second sliding plate; 18 - first spring; 19 - push rod; 20 - driving plate; 21 - second spring; 22 - control plate; 23 - guiding frame; 24 - control hole; 25 - lifting rod; 26 - third spring; 27 - third communication groove; 28 - third conveying pipe; 29 - mounting rack; 30 - rotating disk; 31 - rotating shaft; 32 - rotating frame; 33 - roller; 34 - guiding groove; 35 - first stop block; 36 - second stop block; 37 - top plate; 38 - clockwork spring; 39 - moving die; 40 - fixed die. Detailed implementation mode

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1 - 10 , a discharging and conveying device of an injection molding machine shown in the figure, includes a base 1, an output mechanism and a buffer mechanism. Two groups of side plates 2 are fixedly connected to the base 1. A top plate 37 is arranged between the two groups of side plates 2, and the top plate 37 is fixedly connected to the top surfaces of the two groups of side plates 2. The output mechanism includes a lifting frame 3 and an output frame 4 installed between the two groups of side plates 2. Both the lifting frame 3 and the output frame 4 are inclined. During the process of the moving die 39 moving for injection molding, the lifting frame 3 is linked to lift, so that when demolding, the lifting frame 3 moves upward close to the product, reducing the falling distance of the product, and when the lifting frame 3 moves downward, the product is conveyed into the output frame 4 for output. The buffer mechanism includes an inflatable box 5 fixedly installed between the two groups of side plates 2. An inflator 6 is fixedly connected to the base 1. A plurality of groups of first air blowing holes 7 are evenly arranged on the inner walls of the lifting frame 3 and the output frame 4, which are used to link and inflate and pressurize the inflatable box 5 when the lifting frame 3 moves upward, so that the gas is blown out through the first air blowing holes 7 on the inner wall of the lifting frame 3, reducing the impact force during the falling process of the product. When the lifting frame 3 moves downward, the inflator 6 is linked to pressurize and inflate, so that the first air blowing holes 7 in the output frame 4 blow air, reducing the impact force when the product moves from the lifting frame 3 to the output frame 4.

[0029] The buffer mechanism further includes a baffle 8 fixedly installed between two groups of side plates 2. A plurality of groups of second air blowing holes 9 are evenly formed on the side surface of the baffle 8. A first communication groove 10 communicating with the first air blowing hole 7 on the lifting frame 3 is formed in the lifting frame 3. A second communication groove 11 communicating with the second air blowing hole 9 is formed in the baffle 8. A conveying member for controlling the gas conveying sequence in the first communication groove 10 and the second communication groove 11 when the gas in the gas charging box 5 is pressurized is provided in the gas charging box 5.

[0030] The conveying member includes a first conveying pipe 12 and a second conveying pipe 13 which are connected to communicate with the bottom of the gas charging box 5. The ends of the first conveying pipe 12 and the second conveying pipe 13 away from the gas charging box 5 are fixedly connected to the side surface of the baffle 8. One end of the second conveying pipe 13 is communicated with the second communication groove 11. A communication pipe 14 capable of communicating with the first conveying pipe 12 and the first communication groove 10 is formed in the lifting frame 3. An air charging member 15 for charging the first conveying pipe 12 and the second conveying pipe 13 is provided in the gas charging box 5.

[0031] The air charging member 15 includes a first sliding plate 16 and a second sliding plate 17 which are slidably connected to the inner wall of the gas charging box 5. A first spring 18 is fixedly connected between the first sliding plate 16 and the second sliding plate 17. A push rod 19 is fixedly connected to the side surface of the first sliding plate 16. The end of the push rod 19 away from the first sliding plate 16 is fixedly connected to a driving plate 20. A second spring 21 fixedly connected to the gas charging box 5 is fixedly connected to the side surface of the driving plate 20. A control member for controlling the air charging sequence in the first conveying pipe 12 and the second conveying pipe 13 is provided in the gas charging box 5.

[0032] The control member includes a control plate 22 fixedly installed at the bottom of the first sliding plate 16. A guiding frame 23 is fixedly connected to the side surface of the gas charging box 5. The control plate 22 penetrates through the second sliding plate 17 and the guiding frame 23, and is in sliding fit with the inner walls of the second sliding plate 17, the guiding frame 23 and the gas charging box 5. A control hole 24 capable of communicating with the first conveying pipe 12 and the second conveying pipe 13 is formed in the control plate 22.

[0033] The buffer mechanism further includes a lifting rod 25 fixedly installed at the bottom of the lifting frame 3. The outer wall of the lifting rod 25 is in sliding connection with the inner wall of the air charging cylinder 6 in the vertical direction. The bottom end of the lifting rod 25 is fixedly connected to a third spring 26 fixedly connected to the base 1. A third communication groove 27 communicating with the first air blowing hole 7 in the output frame 4 is formed in the output frame 4. A third conveying pipe 28 is fixedly connected to the side surface of the bottom end of the air charging cylinder 6. The end of the third conveying pipe 28 away from the air charging cylinder 6 is fixedly connected to the output frame 4 and is communicated with the third communication groove 27.

[0034] The output mechanism further includes mounting brackets 29 installed on both sides of the moving mold 39. The mounting brackets 29 are fixedly connected to the moving mold 39 by bolts. A rotating disk 30 is rotatably connected inside the mounting brackets 29. A rotating shaft 31 is coaxially and fixedly connected to the rotating disk 30. A hairspring 38 fixedly connected to the inner wall of the mounting brackets 29 is fixedly connected to the outer wall of the rotating shaft 31. A rotating frame 32 is fixedly connected to the rotating shaft 31. A roller 33 is rotatably connected to the rotating frame 32. A guiding groove 34 for guiding the rolling of the outer wall of the roller 33 is formed in the lifting frame 3. A first stop block 35 and a second stop block 36 for limiting the rotation angle of the rotating frame 32 are fixedly connected to the side surface of the mounting brackets 29.

[0035] In this embodiment, the side plates 2 are arranged to fit on both sides of the moving mold 39 and the fixed mold 40. Both sides of the lifting frame 3 are respectively in sliding fit with the side plates 2 on both sides. The two mounting brackets 29 are respectively fixed on both sides of the moving mold 39 by bolts. The roller 33 is limited by rolling in the guiding groove 34. When the moving mold 39 approaches the fixed mold 40, it drives the mounting brackets 29 and the roller 33 to move. The roller 33 pushes the guiding groove 34 to move the lifting frame 3 downward, so that the lifting rod 25 moves downward to compress the third spring 26. After the moving mold 39 and the fixed mold 40 are closed, injection molding can be carried out. After the injection molded part is cooled and solidified, the moving mold 39 moves away from the fixed mold 40. At the same time, the ejection mechanism in the moving mold 39 ejects the product. At this time, the downward thrust of the roller 33 on the lifting frame 3 is reduced. The lifting frame 3 moves upward under the push of the third spring 26, so that the lifting frame 3 is inserted into the position between the moving mold 39 and the fixed mold 40 to load the product.

[0036] It should be noted that through the arrangement of the first stop block 35 and the second stop block 36, the swinging angle of the roller 33 is limited. When the moving mold 39 is in contact with the fixed mold 40, the rotating shaft 31 drives the rotating frame 32 to rotate to the vertical state, and the rotating frame 32 is in contact with the second stop block 36, so that the roller 33 can fully push the lifting frame 3 away from the moving mold 39 and the fixed mold 40. When the moving mold 39 moves away from the fixed mold 40, the hairspring 38 drives the rotating shaft 31 to rotate in the reverse direction, so that the rotating frame 32 rotates to the position in contact with the first stop block 35, making the position of the roller 33 move relatively obliquely upward, increasing the upward movement amplitude of the lifting frame 3.

[0037] When the moving mold 39 moves away from the fixed mold 40, it will push the driving plate 20 to compress the second spring 21. The driving plate 20 pushes the push rod 19 and the first sliding plate 16 to slide in the air charging box 5. The first sliding plate 16 drives the first spring 18 and the second sliding plate 17 to move together. The area between the first sliding plate 16 and the second sliding plate 17 is connected to the outside through the first sliding plate 16, and no air pressure change will occur. Due to the rapid compression of the gas between the air charging box 5 and the second sliding plate 17, the first spring 18 is compressed. When the first sliding plate 16 drives the control plate 22 to slide, the control hole 24 will first be connected to the first delivery pipe 12, and the gas in the air charging box 5 will be blown out through the control hole 24, the first delivery pipe 12, the connecting pipe 14 and the first connecting groove 10 into the first air blowing hole 7 in the lifting frame 3. At this time, a part of the injection molded part has been separated from the mold and fallen into the lifting frame 3. By discharging the gas in the first air blowing hole 7, the impact between the injection molded part and the lifting frame 3 is reduced, and this buffering effect is not affected by temperature, making the use process more stable and having a longer service life.

[0038] After that, as the moving mold 39 moves to the maximum displacement, the injection molded part is completely ejected. The first sliding plate 16 gradually slides to the maximum displacement, making the control hole 24 communicate with both the first delivery pipe 12 and the second delivery pipe 13 at the same time. At this time, the gas in the first delivery pipe 12 continues to be discharged from the first air blowing hole 7 for buffering, and the gas discharged through the second delivery pipe 13 into the second air blowing hole 9 can reduce the impact force of the injection molded part rolling out of the lifting frame 3 on the baffle 8, producing a buffering effect. This structure enables the blowing sequence of the first air blowing hole 7 and the second air blowing hole 9 to be controlled. Since there is a certain time difference between the time when the injection molded part contacts the first air blowing hole 7 and the second air blowing hole 9 after demolding, blowing in sequence can avoid the situation of doing useless work due to premature exhaust of the second air blowing hole 9.

[0039] Conversely, when the moving mold 39 approaches the fixed mold 40, the lifting frame 3 moves downward, and at the same time, the pushing force on the driving plate 20 is released. The driving plate 20 slides reversely and resets under the push of the second spring 21. The first sliding plate 16 and the second sliding plate 17 slide reversely, and the gas is reversely drawn into the air charging box 5 through the first air blowing hole 7 and the second air blowing hole 9. When the lifting frame 3 moves downward, the gas in the air charging cylinder 6 will be compressed and discharged from the third delivery pipe 28 into the third connecting groove 27 and blown out through the first air blowing hole 7 in the output frame 4. At this time, since the lifting frame 3 gradually moves downward to the lower side of the baffle 8, the injection molded parts on the lifting frame 3 can be stably moved downward and conveyed into the output frame 4 for output, reducing the height difference between the lifting frame 3 and the output frame 4 and avoiding product damage.

[0040] It should be noted that: the opening of the connecting pipe 14 near one end of the first conveying pipe 12 is in a vertical strip shape, so that the first conveying pipe 12 and the connecting pipe 14 remain in a connected state during a certain distance of the upward and downward movement of the lifting frame 3. The overall structure of the conveying device is stable, without the need for an additional driving source, and can automatically achieve an efficient transmission effect during the opening and closing of the moving mold 39 and the fixed mold 40 for injection molding. At the same time, blowing is used to generate a buffering force to reduce the impact force during impact, ensuring product quality. The blowing process can also synchronously achieve the effect of cooling and temperature reduction, improving the efficiency of product cooling and forming.

[0041] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material discharging conveying device for an injection molding machine, characterized in that: include: A base (1), wherein two sets of side panels (2) are fixedly connected to the base (1); Also includes: An output mechanism, the output mechanism comprising a lifting frame (3) and an output frame (4) installed between the two sets of side plates (2), the lifting frame (3) and the output frame (4) being both arranged to be inclined, and being used to link the lifting frame (3) to be lifted and lowered during the process of the movable mold moving for injection molding, so that the lifting frame (3) moves upward to be close to the product during demoulding, thereby reducing the distance the product falls, and when the lifting frame (3) moves downward, the product is transported to the output frame (4) for output; A buffer mechanism, the buffer mechanism comprising an inflatable box (5) fixedly installed between the two groups of side panels (2), an inflatable cylinder (6) fixedly connected to the base (1), and multiple groups of first blowing holes (7) evenly arranged on the inner walls of the lifting frame (3) and the output frame (4), for inflating and pressurizing the inflatable box (5) when the lifting frame (3) moves upward, so that gas is blown out through the first blowing holes (7) on the inner wall of the lifting frame (3), thereby reducing the impact force of the product during the falling process; when the lifting frame (3) moves downward, the inflatable cylinder (6) is linked to pressurize and inflate, so that the first blowing holes (7) in the output frame (4) are blown, thereby reducing the movement of the product from the lifting frame (3) to the output frame (4), the buffer mechanism further comprises a baffle plate (8) fixedly mounted between the two groups of the side plates (2), a plurality of groups of second air blowing holes (9) being evenly arranged on the side surface of the baffle plate (8), a first connecting groove (10) communicating with the first air blowing holes (7) on the lifting frame (3) being arranged in the lifting frame (3), a second connecting groove (11) communicating with the second air blowing holes (9) being arranged in the baffle plate (8), a conveying member for controlling the conveying sequence of the gas in the first connecting groove (10) and the second connecting groove (11) when the gas in the charging box (5) is pressurized is arranged in the charging box (5), the conveying member comprises a first conveying pipe (12) communicating with the bottom of the charging box (5) ) and a second delivery pipe (13), one end of the first delivery pipe (12) and the second delivery pipe (13) away from the inflation box (5) are fixedly connected to the side of the baffle (8), one end of the second delivery pipe (13) is connected to the second connecting groove (11), a connecting pipe (14) capable of connecting with the first delivery pipe (12) and the first connecting groove (10) is provided in the lifting frame (3), an inflatable member (15) for inflating the first delivery pipe (12) and the second delivery pipe (13) is provided in the inflation box (5), the inflatable member (15) includes a first sliding plate (16) and a second sliding plate (17) slidably connected to the inner wall of the inflation box (5), the first A first spring (18) is fixedly connected between a sliding plate (16) and the second sliding plate (17); a push rod (19) is fixedly connected to the side of the first sliding plate (16); an end of the push rod (19) away from the first sliding plate (16) is fixedly connected to a driving plate (20); a second spring (21) fixedly connected to the inflation box (5) is fixedly connected to the side of the driving plate (20); a control component for controlling the inflation sequence in the first conveying pipe (12) and the second conveying pipe (13) is provided in the inflation box (5); the control component comprises a control plate (22) fixedly mounted on the bottom of the first sliding plate (16); a guide frame (23) is fixedly connected to the side of the inflation box (5);The control plate (22) penetrates the second sliding plate (17) and the guide frame (23), and slides in contact with the second sliding plate (17), the guide frame (23) and the inner wall of the inflation box (5). The control plate (22) is provided with a control hole (24) that can communicate with the first delivery pipe (12) and the second delivery pipe (13).

2. The material discharging conveying device of an injection molding machine according to claim 1, characterized in that: The buffer mechanism further comprises a lifting rod (25) fixedly mounted on the bottom of the lifting frame (3); the outer wall of the lifting rod (25) is slidably connected to the inner wall of the inflatable cylinder (6) in the vertical direction; the bottom end of the lifting rod (25) is fixedly connected to a third spring (26) fixedly connected to the base (1); a third connecting groove (27) connected to a first blowing hole (7) in the output frame (4) is provided in the output frame (4); a third conveying pipe (28) is fixedly connected to the side surface of the bottom end of the inflatable cylinder (6); an end of the third conveying pipe (28) away from the inflatable cylinder (6) is fixedly connected to the output frame (4) and is connected to the third connecting groove (27).

3. The material discharging conveying device of an injection molding machine according to claim 1, characterized in that: The output mechanism further comprises a mounting frame (29) mounted on both sides of the movable mold, the mounting frame (29) being fixedly connected to the movable mold by bolts, a rotating disk (30) being rotatably connected inside the mounting frame (29), a rotating shaft (31) being coaxially fixedly connected to the rotating disk (30), a spring (38) being fixedly connected to the inner wall of the mounting frame (29) on the outer wall of the rotating shaft (31), a rotating frame (32) being fixedly connected to the rotating shaft (31), a roller (33) being rotatably connected to the rotating frame (32), and a guide groove (34) capable of rolling and guiding the outer wall of the roller (33) being provided on the lifting frame (3).

4. The material discharging and conveying device of an injection molding machine according to claim 3, characterized in that: A first stopper (35) and a second stopper (36) for limiting the rotation angle of the rotating frame (32) are fixedly connected to the side surface of the mounting frame (29).

5. The material discharging and conveying device of an injection molding machine according to claim 1, characterized in that: A top plate (37) is provided between the two groups of side plates (2), and the top plate (37) is fixedly connected to the top surfaces of the two groups of side plates (2).

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