Injection molding equipment for plastic parts molding

Abstract

The invention discloses an injection molding device for plastic parts molding, and relates to the technical field of injection molding devices. The injection molding device for plastic parts molding comprises a base mechanism, the base mechanism comprises a material box, a bellows is fixedly connected to the middle of the lower side of the front wall of the material box, a pump bin mechanism is arranged on the front side of the bellows, the pump bin mechanism comprises a pump bin, a first interface is fixedly docked at the rear port of the pump bin, the bellows is fixedly docked at the rear port of the first interface, a second interface is fixedly docked at the front port of the pump bin, a material pipe mechanism is arranged on the front side of the pump bin mechanism, the material pipe mechanism comprises a first material pipe, the rear port of the first material pipe is fixedly docked at the second interface, the front port of the first material pipe is inwardly contracted and fixedly docked with the second material pipe, a linkage mechanism is arranged on the upper side of the pump bin mechanism, a protection mechanism is connected to the outer cover of the material pipe mechanism, a gear mechanism is arranged on the upper part of the linkage mechanism, and the injection molding device for plastic parts molding saves the use cost of the injection molding device.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding equipment, in particular to an injection molding equipment for molding plastic parts. Background Art

[0002] Injection molding is a method of producing industrial products. Products are usually made using rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding and die casting.

[0003] Injection molding machine (abbreviated as injection machine or injection molding machine) is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting materials. Injection molding is achieved through injection molding machines and molds.

[0004] The patent with the publication (announcement) number CN111016075A discloses an injection molding device for plastic parts molding processing, whose structure includes a hydraulic system, a controller, a machine body, a threaded feeding barrel, a barrel, a nozzle, a mold, and an electrical switch. The nozzle is composed of a connecting pipe, a main body, a blocking elimination system, a discharge nozzle, and a material channel. The main body is provided with a blocking elimination system, and the blocking elimination system is provided with a spring piece, a connecting port, and a movable ring. The spring piece is provided with two pieces, one end of the spring piece is fixed on the inner wall of the main body provided with the discharge nozzle, and a connecting port is opened on the main body opposite to the end of the spring piece away from the discharge nozzle. The movable ring is arranged in the middle of the main body, and the other end of the spring piece is fixed on the movable ring. The spring piece is spirally shaped on the inner wall of the main body when not in use, and is fully in contact with the inner wall of the main body. When in use, the movable ring is rotated, and the spring piece is in a relaxed state, and naturally arches outward, that is, arches toward the center position of the main body, and squeezes out the blockage inside it.

[0005] The above patent can squeeze out the solidified plastic when in use, but the movable ring needs to be manually rotated before each injection, and because the nozzle is exposed to the external environment, most of the plastic in the front section will solidify into a hard block, which increases the difficulty of avoiding blockage and also wastes some plastic. Therefore, there is an urgent need for an injection molding device for plastic parts to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide an injection molding device for molding plastic parts to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an injection molding device for molding plastic parts, comprising a base mechanism, the base mechanism comprising a material box, a bellows is fixedly connected to the middle of the lower side of the front wall of the material box, a pump bin mechanism is arranged on the front side of the bellows, the pump bin mechanism comprises a pump bin, a rear port of the pump bin is fixedly docked with a first interface, the rear port of the first interface is fixedly docked with the bellows, and the front port of the pump bin is fixedly docked with a second interface; a material pipe mechanism is arranged on the front side of the pump bin mechanism, the material pipe mechanism comprises a first material pipe, the rear port of the first material pipe is fixedly docked with the second interface, and the front port of the first material pipe is retracted and fixedly docked with the second material pipe; a linkage mechanism is arranged on the upper side of the pump bin mechanism; a protection mechanism is connected to the outer cover of the material pipe mechanism; a gear mechanism is arranged on the upper part of the linkage mechanism.

[0008] Preferably, an electric telescopic column is fixedly connected to the middle part of the upper side of the front surface of the material box, and a connecting rod is fixedly connected to the front end of the electric telescopic column, and the end of the connecting rod away from the electric telescopic column is bent downward and fixedly connected to the middle part of the rear side of the upper surface of the pump bin; a base is fixedly connected to the lower end of the front surface of the material box; a mold box is fixedly connected to the front surface of the base, a door panel is embedded in the right wall of the mold box, and a material hole is embedded and fixedly connected to the middle part of the lower side of the rear wall of the mold box, and the front port of the second material pipe is opposite to the material hole.

[0009] Preferably, the lower surface of the pump bin fits the base, and the left and right walls in the middle of the pump bin are convex and arc-shaped; a first vertical roller is vertically arranged on the right part of the pump bin, and the lower end of the first vertical roller is movably connected to the lower inner wall of the pump bin by a bearing, and the upper end of the first vertical roller penetrates the upper wall of the pump bin and is movably connected with it by a bearing, and the first vertical roller is located in a section inside the pump bin and is fixedly sleeved with a first tooth column, and the first tooth column is adapted to the interior of the pump bin, and a section of the first vertical roller extending out of the upper wall of the pump bin is sleeved with a first belt; a second vertical roller is vertically arranged on the left part of the pump bin, and the lower end of the second vertical roller is movably connected to the lower inner wall of the pump bin by a bearing, and the upper end of the second vertical roller penetrates the upper wall of the pump bin and is movably connected with it by a bearing, and the second vertical roller is located in a section inside the pump bin and is fixedly sleeved with a second tooth column, and the second tooth column is adapted to the interior of the pump bin, and a section of the second vertical roller extending out of the upper wall of the pump bin is sleeved with a second belt; the first tooth column and the second tooth column are meshed, and the first belt and the second belt are arranged alternately.

[0010] Preferably, the linkage mechanism includes a platform, the rear surface of the platform is fixedly connected to a column, the end of the column away from the platform is bent downward and fixedly connected to the pump chamber, and the column is on the front side of the connecting rod; the front part of the surface of the platform is penetrated by columns on both sides and fixedly connected, the upper end of the column extends out of the platform and is movably connected to the first connecting arm through a bearing.

[0011] Preferably, through holes are opened on the left and right sides of the middle part of the surface of the platform, and a vertical rod is movably inserted into the interior of the through hole through a bearing; the lower end of the vertical rod extends out of the platform and fits the pump bin, and the end of the first belt away from the first vertical roller corresponds to the lower end of the vertical rod on the left side, and the end of the second belt away from the second vertical roller corresponds to the lower end of the vertical rod on the right side; the upper end of the vertical rod extends out of the platform and is fixedly sleeved with a disc, the lower surface of the disc is flush with the upper surface of the column, and the front side of the disc is fixedly connected to a second connecting arm; the upper surface of the disc is fixedly connected to a gear, and the upper end of the vertical rod corresponds to the gear passing through, and the left and right gears are meshed.

[0012] Preferably, the protection mechanism includes two left-right symmetrical first shells, the two first shells fit each other and are respectively located on the left and right sides of the second material pipe, and the two first shells are adapted to the second material pipe; the rear ends of the two first shells are fixedly connected with the second shell, the two second shells are left-right symmetrical, the two second shells fit each other and are respectively located on the left and right sides of the first material pipe, and the two second shells are adapted to the first material pipe; the middle part of the rear end of the second shell is fixedly connected with the first connecting column, the upper end of the first connecting column corresponds to and penetrates through and is movably connected to the end of the second connecting arm on the same side away from the disc through a bearing, and the middle part of the front end of the second shell is fixedly connected with the second connecting column, the upper end of the second connecting column corresponds to and is movably connected to the end of the first connecting arm on the same side away from the column through a bearing.

[0013] Preferably, the front end of the first shell is located in front of the front end of the second material tube, and sealing posts are evenly and equidistantly fixedly connected to the inner side of the front port of the first shell, and the sealing posts on the left and right sides are inserted and face the front port of the second material tube.

[0014] Preferably, the rack mechanism includes two racks, and a rack is respectively provided on the opposite sides of the two gears, the rack is flush with the gear, and a side of the rack close to the gear is evenly and equidistantly fixedly connected with teeth, and the teeth are meshed with the gears accordingly, and a connecting plate is fixedly connected to the middle of a side of the rack away from the gear, and the end of the connecting plate away from the rack is bent backwards and fixedly connected to the material box accordingly.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) An injection molding device for molding plastic parts, which reduces heat loss from a material pipe mechanism exposed to the outside, can slow down the solidification of plastic inside the material pipe mechanism, and avoid plastic solidification clogging the material pipe, while also avoiding waste of plastic and saving the cost of using the injection molding device.

[0017] (2) Injection molding equipment for molding plastic parts, the residual plastic and the inserted sealing column together form a tight seal to seal the front end of the second material pipe, thereby improving the protection of the plastic inside the material pipe mechanism.

[0018] (3) An injection molding device for molding plastic parts, which prevents residual plastic from dripping down the front end of the second material pipe to the working platform, causing contamination of the second material pipe and the working platform, thereby improving the working environment quality of the injection molding device.

[0019] (4) An injection molding device for molding plastic parts, which automatically pulls the first shell and the second shell on the left and right sides of the material pipe mechanism to move to the outside and rear away from the material pipe mechanism through the connection between the second connecting arm and the first connecting column, automatically making space for the docking of the second material pipe and the material hole, thereby improving the docking automation of the injection molding device.

[0020] (5) In an injection molding device for molding plastic parts, the sealing columns on both sides will pull the plastic that is about to dry up to separate, thereby automatically pulling out the dried plastic at the front end of the second material tube in the early stage of injection molding, thereby improving the injection molding smoothness and injection molding quality of the injection molding device.

[0021] (6) An injection molding device for molding plastic parts, which automatically pumps the hot plastic inside the material box to the front side of the feeding pipe mechanism through the pump bin mechanism, thereby achieving the effect of automatic material discharge. Similarly, when the material pipe mechanism is retracted after the injection molding is completed, the existence of the pump bin mechanism can automatically recycle the excess plastic inward, thereby avoiding the waste of plastic and improving the green environmental protection of the injection molding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the base mechanism of the present invention;

[0024] Figure 3 It is a schematic diagram of the main body of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection of the pump bin mechanism of the present invention;

[0026] Figure 5 It is a connection schematic diagram of the linkage mechanism of the present invention;

[0027] Figure 6 It is a schematic diagram of the position of the pump bin mechanism of the present invention;

[0028] Figure 7 It is a schematic diagram of the pump bin mechanism of the present invention;

[0029] Figure 8 It is a schematic diagram of the material pipe mechanism of the present invention;

[0030] Fig. 9 It is a schematic diagram of the linkage mechanism of the present invention;

[0031] Fig.10 It is a schematic diagram of the platform of the present invention;

[0032] Fig.11 It is a schematic diagram of the disc of the present invention;

[0033] Fig.12 It is a schematic diagram of the protection mechanism of the present invention;

[0034] Fig.13 This is a schematic diagram of the sealing column of the present invention;

[0035] Fig.14 This is a connection diagram of the protection mechanism of the present invention;

[0036] Fig.15 It is a schematic diagram of the gear mechanism of the present invention.

[0037] In the figure: 1. Base mechanism; 101. Material box; 102. Bellows; 103. Electric telescopic column; 104. Connecting rod; 105. Base; 106. Mold box; 107. Door panel; 108. Material hole; 2. Pump bin mechanism; 201. Pump bin; 202. First vertical roller; 203. First tooth column; 204. First belt; 205. Second vertical roller; 206. Second tooth column; 207. Second belt; 208. First interface; 209. Second interface; 3. Material pipe mechanism; 301 , the first material pipe; 302, the second material pipe; 4, the linkage mechanism; 401, the platform; 402, the platform column; 403, the through hole; 404, the column; 405, the first connecting arm; 406, the vertical rod; 407, the disk; 408, the second connecting arm; 409, the gear; 5, the protection mechanism; 501, the first shell; 502, the second shell; 503, the first connecting column; 504, the second connecting column; 505, the sealing column; 6, the gear mechanism; 601, the rack; 602, the teeth; 603, the connecting plate. DETAILED DESCRIPTION

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

[0039] See also Figure 1-15The present invention provides a technical solution: an injection molding device for molding plastic parts, comprising a base mechanism 1, the base mechanism 1 comprises a material box 101, a bellows 102 is fixedly connected to the middle of the lower side of the front wall of the material box 101, a pump bin mechanism 2 is arranged on the front side of the bellows 102, the pump bin mechanism 2 comprises a pump bin 201, a first interface 208 is fixedly connected to the rear port of the pump bin 201, the rear port of the first interface 208 is fixedly connected to the bellows 102, and the front port of the pump bin 201 is fixedly connected to the second interface 209; a material pipe mechanism 3 is arranged on the front side of the pump bin mechanism 2, the material pipe mechanism 3 comprises a first material pipe 301, the rear port of the first material pipe 301 is fixedly connected to the second interface 209, and the front port of the first material pipe 301 is retracted and fixedly connected to the second material pipe 302; a linkage mechanism 4 is arranged on the upper side of the pump bin mechanism 2; a protection mechanism 5 is connected to the outer cover of the material pipe mechanism 3; a gear mechanism 6 is arranged on the upper part of the linkage mechanism 4.

[0040] An electric telescopic column 103 is fixedly connected to the middle part of the upper side of the front surface of the material box 101, and a connecting rod 104 is fixedly connected to the front end of the electric telescopic column 103. The end of the connecting rod 104 away from the electric telescopic column 103 is bent downward and fixedly connected to the middle part of the rear side of the upper surface of the pump bin 201; a base 105 is fixedly connected to the lower end of the front surface of the material box 101; a mold box 106 is fixedly connected to the front surface of the base 105, and a door panel 107 is embedded in the right wall of the mold box 106. A material hole 108 is embedded and fixedly connected to the middle part of the lower side of the rear wall of the mold box 106, and the front end of the second material pipe 302 is opposite to the material hole 108.

[0041] The lower surface of the pump chamber 201 is in contact with the base 105, and the left and right walls of the middle part of the pump chamber 201 are convex and arc-shaped (such as Figure 7 The first vertical roller 202 is vertically arranged on the right side of the pump bin 201, and the lower end of the first vertical roller 202 is movably connected to the lower inner wall of the pump bin 201 through a bearing, and the upper end of the first vertical roller 202 passes through the upper wall of the pump bin 201 and is movably connected to it through a bearing, and a section of the first vertical roller 202 inside the pump bin 201 is fixedly sleeved with a first tooth column 203, and the first tooth column 203 is adapted to the inside of the pump bin 201, and a section of the first vertical roller 202 extending out of the upper wall of the pump bin 201 is sleeved with a first belt 204; the second vertical roller is vertically arranged on the left side of the pump bin 201 205, the lower end of the second vertical roller 205 is movably connected to the lower inner wall of the pump chamber 201 through a bearing, the upper end of the second vertical roller 205 penetrates the upper wall of the pump chamber 201 and is movably connected to it through a bearing, a section of the second vertical roller 205 inside the pump chamber 201 is fixedly sleeved with a second tooth column 206, the second tooth column 206 is adapted to the inside of the pump chamber 201, and a section of the second vertical roller 205 extending out of the upper wall of the pump chamber 201 is sleeved with a second belt 207; the first tooth column 203 and the second tooth column 206 are meshed, and the first belt 204 and the second belt 207 are staggered (such as Figure 7 as shown).

[0042] The linkage mechanism 4 includes a platform 401, and a column 402 is fixedly connected to the rear surface of the platform 401. The end of the column 402 away from the platform 401 is bent downward and fixedly connected to the pump chamber 201, and the column 402 is on the front side of the connecting rod 104; the front part of the surface of the platform 401 is penetrated by columns 404 on both sides and fixedly connected, and the upper end of the column 404 extends out of the platform 401 and is movably connected to the first connecting arm 405 through a bearing.

[0043] Through holes 403 are provided on the left and right sides of the middle of the surface of the platform 401, and a vertical rod 406 is movably inserted into the interior of the through hole 403 through a bearing; the lower end of the vertical rod 406 extends out of the platform 401 and fits the pump bin 201, and the end of the first belt 204 away from the first vertical roller 202 corresponds to the lower end of the vertical rod 406 on the left, and the end of the second belt 207 away from the second vertical roller 205 corresponds to the lower end of the vertical rod 406 on the right; the upper end of the vertical rod 406 extends out of the platform 401 and is fixedly sleeved with a disc 407, the lower surface of the disc 407 is flush with the upper surface of the column 404, and the front side of the disc 407 is fixedly connected to the second connecting arm 408; the upper surface of the disc 407 is fixedly connected to a gear 409, and the upper end of the vertical rod 406 corresponds to the gear 409, and the left and right gears 409 are meshed.

[0044] The protection mechanism 5 includes two first shells 501 that are symmetrical on the left and right sides. The two first shells 501 fit each other and are located on the left and right sides of the second material tube 302, respectively. The two first shells 501 are adapted to the second material tube 302; the rear ends of the two first shells 501 are fixedly connected with the second shells 502, the two second shells 502 are symmetrical on the left and right sides. The two second shells 502 fit each other and are located on the left and right sides of the first material tube 301, respectively. The two second shells 502 are adapted to the first material tube 301; the first shells 501 and the second shells 502 are made of heat-insulating materials; before injection molding or during the injection molding interval, the first shells 501 and the second shells 5 02 is always wrapped around the outside of the material pipe mechanism 3, so as to wrap and keep the material pipe mechanism 3 warm, which can reduce the heat loss of the material pipe mechanism 3 exposed to the outside, and can slow down the solidification of the plastic inside the material pipe mechanism 3. The middle part of the rear end of the second shell 502 is fixedly connected with the first connecting column 503, and the upper end of the first connecting column 503 corresponds to and is movably connected to the end of the second connecting arm 408 on the same side away from the disc 407 through the bearing. The middle part of the front end of the second shell 502 is fixedly connected with the second connecting column 504, and the upper end of the second connecting column 504 corresponds to and is movably connected to the end of the first connecting arm 405 on the same side away from the column 404 through the bearing.

[0045] The front end of the first shell 501 is located at the front side of the front end of the second material tube 302, and the inner side of the front port of the first shell 501 is evenly and evenly fixed with sealing columns 505. The sealing columns 505 on the left and right sides are inserted and face the front port of the second material tube 302. The sealing columns 505 on both sides will be inserted in an alternating manner at the front port of the second material tube 302, and will come into contact with the remaining plastic at the front port of the second material tube 302. The remaining plastic there will inevitably lower the temperature. Therefore, the remaining plastic and the inserted sealing columns 505 together form a tight seal to block the front port of the second material tube 302, so as to prevent the remaining plastic from dripping along the front port of the second material tube 302 to the working platform.

[0046] The rack mechanism 6 includes two racks 601. The two gears 409 are respectively provided with racks 601 on opposite sides. The racks 601 are flush with the gears 409. The side of the rack 601 close to the gear 409 is evenly and evenly fixedly connected with teeth 602. The teeth 602 mesh with the gears 409. The middle part of the side of the rack 601 away from the gear 409 is fixedly connected with a connecting plate 603. The end of the connecting plate 603 away from the rack 601 is bent backward and fixedly connected to the material box 101. When injection molding is required, the linkage mechanism 4 moves forward, the gears 409 mesh with the teeth 602, so that the gear 409 on the right side rotates clockwise and the gear 409 on the left side rotates counterclockwise. Through the connection between the second connecting arm 408 and the first connecting column 503, the first shell 501 and the second shell 502 on the left and right sides of the material pipe mechanism 3 are pulled to move to the outside and rear away from the material pipe mechanism 3.

[0047] Working principle:

[0048] Step 1: Before injection molding or during the injection molding gap, the first shell 501 and the second shell 502 are always wrapped around the outside of the material pipe mechanism 3, so as to wrap and insulate the material pipe mechanism 3. This can reduce the heat loss of the material pipe mechanism 3 exposed to the outside, slow down the solidification of the plastic inside the material pipe mechanism 3, and avoid the plastic solidification clogging the material pipe. At the same time, it also avoids the waste of plastic and saves the use cost of the injection molding equipment.

[0049] Step 2: During the injection molding gap, plastic remains at the front port of the second material tube 302. After the first shell 501 and the second shell 502 wrap the material tube mechanism 3, the sealing columns 505 on both sides will be staggered and inserted at the front port of the second material tube 302, and will come into contact with the remaining plastic at the front port of the second material tube 302. The remaining plastic there will inevitably lower the temperature. Therefore, the remaining plastic and the inserted sealing columns 505 together form a tight seal to block the front port of the second material tube 302, thereby improving the protection of the plastic inside the material tube mechanism 3.

[0050] Step 3: After injection molding, the timely wrapping of the material tube mechanism 3 by the first shell 501 and the second shell 502 can make the remaining plastic directly contact the sealing column 505, and prevent it from dripping along the front port of the second material tube 302 to the working platform, causing contamination of the second material tube 302 and the working platform, thereby improving the working environment quality of the injection molding equipment.

[0051] Step 4: When the front end of the second material pipe 302 is required to face the material hole 108 for injection molding, the electric telescopic column 103 is first started to push the pump bin mechanism 2 and the material pipe mechanism 3 to move forward synchronously. At this time, through the connection between the column 402 and the pump bin 201, the linkage mechanism 4 and the protection mechanism 5 follow the forward movement, and in the process of moving forward, the gear 409 meshes with the tooth 602, so that the gear 409 on the right side rotates clockwise and the gear 409 on the left side rotates counterclockwise. Through the connection between the second connecting arm 408 and the first connecting column 503, the first shell 501 and the second shell 502 on the left and right sides of the material pipe mechanism 3 are automatically pulled to move away from the outer rear of the material pipe mechanism 3, automatically making room for the docking of the second material pipe 302 and the material hole 108, thereby improving the docking automation of the injection molding equipment.

[0052] Step 5: Through the insertion of the sealing posts 505 on the left and right sides and the contact with the plastic residue, when docking the second material tube 302 and the material hole 108, the first shell 501 and the second shell 502 on the left and right sides will be separated under the movement of the first connecting post 503 and the second connecting post 504, and the sealing posts 505 on both sides will pull the plastic that is about to dry up to separate, thereby automatically pulling out the dried plastic at the front port of the second material tube 302 in the early stage of injection molding, thereby improving the injection molding fluency and injection molding quality of the injection molding equipment.

[0053] Step 6: By starting the electric telescopic column 103, the pump bin mechanism 2 and the material pipe mechanism 3 are driven to move forward and insert into the material hole 108 for injection molding. Through the meshing action of the gear 409 and the tooth 602, the gear 409 on the right rotates clockwise, and the gear 409 on the left rotates counterclockwise. Further, through the connection of the first belt 204 and the second belt 207, the first gear column 203 follows the gear 409 on the left to rotate counterclockwise, and the second gear column 206 follows the gear 409 on the right to rotate clockwise. Through the rotation of the first gear column 203 and the second gear column 206, a pump body space is formed inside the pump bin 201. When injection molding is performed, the hot plastic inside the material box 101 is automatically pumped out of the feeding pipe mechanism 3 to the front side through the pump bin mechanism 2, which has the effect of automatic discharging. Similarly, when the injection molding is completed and the material pipe mechanism 3 is retracted, the existence of the pump bin mechanism 2 can automatically recycle the excess plastic inward, avoid plastic waste, and improve the green environmental protection of the injection molding equipment.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding device for molding plastic parts, comprising a base mechanism (1), the base mechanism (1) comprising a material box (101), a bellows (102) being fixedly connected to the middle of the lower side of the front wall of the material box (101), characterized in that: A pump chamber mechanism (2) is arranged at the front side of the bellows (102), the pump chamber mechanism (2) comprising a pump chamber (201), a rear port of the pump chamber (201) being fixedly docked with a first interface (208), a rear port of the first interface (208) being fixedly docked with the bellows (102), and a front port of the pump chamber (201) being fixedly docked with a second interface (209); A material pipe mechanism (3) is arranged at the front side of the pump bin mechanism (2), the material pipe mechanism (3) comprising a first material pipe (301), a rear end of the first material pipe (301) fixedly docked with a second interface (209), and a front end of the first material pipe (301) retracted inwardly and fixedly docked with a second material pipe (302); A linkage mechanism (4) is provided on the upper side of the pump bin mechanism (2); The outer cover of the material pipe mechanism (3) is connected to a protection mechanism (5); A gear mechanism (6) is provided on the upper part of the linkage mechanism (4); An electric telescopic column (103) is fixedly connected to the middle part of the upper side of the front surface of the material box (101); a connecting rod (104) is fixedly connected to the front end of the electric telescopic column (103); an end of the connecting rod (104) away from the electric telescopic column (103) is bent downward and fixedly connected to the middle part of the rear side of the upper surface of the pump bin (201); A base (105) is fixedly connected to the lower end of the front surface of the material box (101); A mold box (106) is fixedly connected to the front surface of the base (105), a door panel (107) is embedded and installed in the right wall of the mold box (106), a material hole (108) is embedded and fixedly connected in the middle of the lower side of the rear wall of the mold box (106), and the front end of the second material pipe (302) is directly opposite to the material hole (108); The lower surface of the pump chamber (201) is in contact with the base (105), and the left and right walls in the middle of the pump chamber (201) are convex and arc-shaped; A first vertical roller (202) is vertically arranged on the right side of the pump bin (201); the lower end of the first vertical roller (202) is movably connected to the lower inner wall of the pump bin (201) via a bearing; the upper end of the first vertical roller (202) penetrates the upper wall of the pump bin (201) and is movably connected to the upper wall via a bearing; a section of the first vertical roller (202) inside the pump bin (201) is fixedly sleeved with a first tooth column (203); the first tooth column (203) is adapted to the inside of the pump bin (201); a section of the first vertical roller (202) extending out of the upper wall of the pump bin (201) is sleeved with a first belt (204); A second vertical roller (205) is vertically arranged on the left side of the pump bin (201); the lower end of the second vertical roller (205) is movably connected to the lower inner wall of the pump bin (201) via a bearing; the upper end of the second vertical roller (205) penetrates the upper wall of the pump bin (201) and is movably connected to the upper wall via a bearing; a section of the second vertical roller (205) inside the pump bin (201) is fixedly sleeved with a second tooth column (206); the second tooth column (206) is adapted to the inside of the pump bin (201); and a section of the second vertical roller (205) extending out of the upper wall of the pump bin (201) is sleeved with a second belt (207); The first tooth column (203) and the second tooth column (206) are meshed, and the first belt (204) and the second belt (207) are arranged alternately; The linkage mechanism (4) comprises a platform (401), a rear surface of the platform (401) being fixedly connected to a column (402), one end of the column (402) away from the platform (401) being bent downward and fixedly connected to the pump chamber (201), and the column (402) being located in front of the connecting rod (104); The front part of the surface of the platform (401) is penetrated by columns (404) on both sides and fixedly connected thereto; the upper end of the column (404) extends out of the platform (401) and is movably sleeved with a first connecting arm (405) via a bearing; Through holes (403) are provided on both sides of the middle of the surface of the platform (401), and vertical rods (406) are movably inserted into the interior of the through holes (403) via bearings; The lower end of the vertical rod (406) extends out of the platform (401) and fits the pump bin (201); one end of the first belt (204) away from the first vertical roller (202) is correspondingly sleeved to the lower end of the vertical rod (406) on the left side; and one end of the second belt (207) away from the second vertical roller (205) is correspondingly sleeved to the lower end of the vertical rod (406) on the right side; The upper end of the vertical rod (406) extends out of the platform (401) and is fixedly sleeved with a disc (407); the lower surface of the disc (407) is flush with the upper surface of the column (404); and the front side of the disc (407) is fixedly connected with a second connecting arm (408); A gear (409) is fixedly connected to the upper surface of the circular disk (407), and the upper end of the vertical rod (406) passes through the gear (409) correspondingly, and the left and right gears (409) are meshed; The protection mechanism (5) comprises two left-right symmetrical first shells (501), the two first shells (501) are fitted to each other and are respectively located on the left and right sides of the second material tube (302), and the two first shells (501) are adapted to the second material tube (302); The rear ends of the two first shells (501) are fixedly connected to a second shell (502), the two second shells (502) are symmetrical, the two second shells (502) fit each other and are respectively located on the left and right sides of the first material tube (301), and the two second shells (502) are adapted to the first material tube (301); A first connecting column (503) is fixedly connected to the middle of the rear end of the second housing (502); the upper end of the first connecting column (503) corresponds to and penetrates through an end of the second connecting arm (408) on the same side away from the disc (407) and is movably connected to the second connecting column (504) at the middle of the front end of the second housing (502); the upper end of the second connecting column (504) corresponds to and is movably connected to an end of the first connecting arm (405) on the same side away from the column (404) through a bearing; The front end of the first shell (501) is located in front of the front end of the second material tube (302), and the inner side of the front port of the first shell (501) is evenly and evenly fixedly connected with sealing posts (505), and the sealing posts (505) on the left and right sides are inserted and face the front port of the second material tube (302); The rack mechanism (6) comprises a rack (601), the number of the racks (601) being two, and the two gears (409) are respectively provided with a rack (601) on the opposite sides thereof, the rack (601) being flush with the gear (409), a side of the rack (601) close to the gear (409) being evenly and evenly fixedly connected with teeth (602), the teeth (602) correspondingly meshing with the gear (409), a connecting plate (603) being fixedly connected to the middle of a side of the rack (601) away from the gear (409), an end of the connecting plate (603) away from the rack (601) being bent backwards and correspondingly fixedly connected to the material box (101).

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