An extrusion molding equipment for producing and processing corrugated pipes

Abstract

The present invention relates to the technical field of bellows production equipment, and specifically to an extrusion molding device for bellows production and processing, comprising: a base frame, on which an injection assembly is arranged, the injection assembly includes a sliding seat, a storage barrel, a push rod and a second driving cylinder; a feeding assembly, which includes a feed pipe, a heating hopper and a driving assembly. The extrusion molding device for bellows production and processing provided by the invention utilizes the sliding seat to move so that the injection channel of the storage barrel is aligned with the injection hole of the mold, and the second driving cylinder drives the push rod to move to inject the molten plastic raw material into the mold through the injection channel and the injection hole, so that the socket and the spigot are directly formed at both ends of the steel strip tube by injecting the molten plastic raw material, and no additional cutting process is required for the steel strip tube, thereby improving the production and molding efficiency of the steel strip bellows, and eliminating the waste of materials that are turned again after molding in the manufacturing process.

Description

Technical Field

[0001] The invention relates to the technical field of corrugated pipe production equipment, and in particular to an extrusion molding equipment for producing and processing corrugated pipes. Background Art

[0002] There are many types of corrugated pipes according to the manufacturing materials. The steel strip pipes of corrugated pipes are mainly used in occasions with large flow diameters, such as in water conservancy projects. In the production process of steel strip pipes, it is impossible to produce the sockets and spigots online. However, in order to enable the product to be smoothly installed on the construction site, if the steel strip pipes after offline need to be made into socket connection ports, they must be processed twice, and the sockets and spigots must be made at both ends of the pipe, and the standard sealing rubber rings must be customized in advance. At present, the domestic processing method is basically to use the wrapping equipment to heat and wrap the PE molten tape and heat shrink tape on both ends of the produced steel strip pipe, and then use the lathe to process the required shape, such as the rubber ring installation bayonet and the rubber ring installation guide slope.

[0003] According to the publication number CN203046268U, the publication (announcement) date: 2013.07.10, a large-diameter bellows processing equipment is disclosed, including at least one load-bearing machine for horizontally supporting the bellows, a bellows forming machine and a spigot forming machine respectively arranged at both ends of the bellows; the bellows forming machine is provided with a bellows mold for matching the bellows, and the spigot forming machine is provided with a positioning chuck for clamping the bellows from the inner wall; the bellows forming machine and the spigot forming machine are also provided with a plastic extruder A and a plastic extruder B for forming the bellows and spigot of the bellows, respectively. In this way, the processing of the bellows and spigot of each bellows can be completed at one time. Large-diameter electric-melted bellows with steel strips reinforced spiral double-walled bellows of DN300-DN4000 can be produced. The connection problem of large-diameter steel strips reinforced spiral double-walled bellows is solved, the connection success rate can reach more than 99%, and the production efficiency can be increased by more than 10 times.

[0004] In the prior art including the above-mentioned patent, a plastic extruder A and a plastic extruder B are used to output a strip of plastic, and the strip of plastic is coated on a plastic extrusion device at the socket or the plug portion of the corrugated pipe. Subsequently, an infrared heating plate is used to heat the strip of plastic at the connecting portion of the corrugated pipe, and a pressure roller is used to compact the strip of plastic. Finally, a cutter is started to cut the plastic at the end of the corrugated pipe to finally form the socket and the plug portion. As a result, in the production process of the steel strip pipe, it is impossible to produce the socket and the spigot pipe fittings online, and it is necessary to use a heat shrink tape to wrap and connect them during the construction process, and it is necessary to be equipped with a power supply or a gas heating device, and a cutting process is required to form the plug or the socket, resulting in low forming efficiency of the corrugated pipe. Summary of the invention

[0005] The purpose of the present invention is to provide an extrusion molding device for producing and processing corrugated pipes to solve the above-mentioned problems.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solution: an extrusion molding device for producing and processing a corrugated pipe, comprising a die base, on which a mold is provided for movably clamping the two ends of a steel strip pipe, and an injection hole is provided on the mold, and further comprising:

[0007] A base frame is provided with an injection assembly, the injection assembly comprising a sliding seat, a material storage barrel, a push rod and a second driving cylinder, the sliding seat is slidably provided on the base frame, the material storage barrel is provided on the sliding seat and a communicating injection channel and a material storage chamber are provided on the material storage barrel, and the second driving cylinder drives the push rod to be located in the material storage chamber to keep the piston sliding;

[0008] A feeding assembly, comprising a feeding pipe, a heating hopper and a driving assembly, wherein the heating hopper and the driving assembly are connected to a first end of the feeding pipe, and a second end of the feeding pipe is connected to a storage cavity of the storage barrel;

[0009] The sliding seat is driven to slide so that the feeding assembly and the storage barrel are synchronously moved close to the mold base, and the first end of the storage barrel abuts against the mold so that the injection channel is connected to the injection hole.

[0010] Preferably, it also includes a supporting assembly, which includes a supporting seat fixedly arranged on the mold base, supporting wheels symmetrically rotatably arranged on the supporting seat, a sliding rod horizontally slidingly arranged on the supporting seat, a movable wheel rotatably arranged on the sliding rod, the movable wheel and the sliding rod are located between the supporting wheels, and the supporting wheels and the movable wheels are provided with engaging plates in a circumferential array, the bottom linear array of the storage barrel is provided with matching tooth grooves, and the engaging plate is provided with an arc-shaped inner groove to abut against the groove bottom of the matching tooth groove, and the storage barrel is driven to move relative to the mold so that the supporting wheels and the movable wheel rotate to support the storage barrel.

[0011] Preferably, the slide rod is provided with an indicating portion extending to the scale surface arranged on the outside of the supporting seat, and a push plate and a first elastic member are symmetrically arranged in the supporting seat, and the first elastic member pushes the push plate to squeeze the slide rod and the movable wheel in the middle part between the two supporting wheels, and the indicating portion is aligned with the scale in the middle of the scale surface.

[0012] Preferably, it also includes an insulation sleeve coaxially arranged on the storage barrel, the insulation sleeve is provided with an air inlet pipe connected with the insulation chamber opened inside the insulation sleeve, the air inlet pipe is provided with a cover portion arranged on the second driving cylinder, the supporting seat is provided with a push block, and the insulation chamber is provided with a movable ring that seals the insulation chamber in a default state, the storage barrel is driven to move closer to the mold so that the insulation sleeve is moved closer to the push block, and the push block pushes the movable ring to slide relative to the insulation sleeve to connect the insulation chamber with the outside.

[0013] Preferably, a rectangular array on the base frame is provided with guide slide columns that slide with the sliding seat, a circular array on the insulation sleeve is provided with a movable seat that slides radially along the insulation sleeve, a second elastic member and a rotatably arranged resistance wheel are provided on the movable seat, the movable seat is driven to slide so that the resistance wheel respectively resists against a number of guide slide columns, and a detection end facing the storage barrel is provided on the movable seat.

[0014] Preferably, the insulation sleeve is coaxially slidably arranged on the storage barrel, the push block is slidably arranged on the supporting seat, the storage barrel is provided with a third elastic member that pushes the insulation sleeve to slide back to the sliding seat, and the supporting seat is provided with a fourth elastic member that drives the push block to slide out to maintain a default state, the storage barrel is driven to move close to the mold so that the push block in the default state pushes the insulation sleeve to compress the third elastic member and slides to the end of the sliding stroke of the insulation sleeve, and the insulation sleeve follows the storage barrel to move synchronously to squeeze the push block to slide to compress the fourth elastic member.

[0015] Preferably, a mounting seat is provided in the supporting seat, a rubber plate is provided on the mounting seat, and semi-cylindrical protrusions are symmetrically provided on the rubber plate on both sides of the movable wheel to separate the movable wheel from the supporting wheel, an arc-shaped plate is provided in the rubber plate, and both ends of the arc-shaped plate extend into the protrusions respectively, and the movable wheel is driven to move horizontally to squeeze any one of the protrusions so that the other protrusion is squeezed and lifted by the arc-shaped plate to support the upper supporting wheel.

[0016] Preferably, the mounting seat is vertically tilted and slidably arranged in the supporting seat, the pushing block is provided with a pushing slope, and the mounting seat is rotatably provided with a contact wheel that abuts on the pushing slope, the pushing block is driven to slide and compress the fourth elastic member so that the pushing slope pushes the contact wheel to move, and the mounting seat is driven to move vertically tilted upward so that the rubber plate is vertically tilted and lifted and pushes the supporting wheel to rotate. After the end of the pushing storage barrel is pressed tightly into the injection hole, the rubber plate abuts to lock the supporting wheel and the movable wheel.

[0017] Preferably, the insulation sleeve is provided with a through groove, the movable ring is provided with a protruding portion sliding in the through groove, the protruding portion is provided with a spray outlet, the movable ring is provided with a connecting channel located in the insulation chamber and connected with the spray outlet, the movable ring is in a default state so that the spray outlet is blocked in the through groove, and the movable ring is driven to slide so that the protruding portion extends out of the through groove to connect the spray outlet with the outside.

[0018] Preferably, the insulation sleeve is provided with a through slot connected to the air guide slot, the first end of the air guide slot is provided with a chamfered portion facing the guide column, and the movable ring is driven to slide so that the extending portion extends out of the through slot toward the air guide slot.

[0019] In the above technical scheme, the extrusion molding equipment for producing and processing corrugated pipes provided by the present invention has the following beneficial effects: the molten plastic raw material is injected into the storage cavity of the storage barrel by using the feed pipe, the heating hopper and the drive assembly, and then the sliding seat moves to align the injection channel of the storage barrel with the injection hole of the mold, and the second drive cylinder drives the push rod to move to inject the molten plastic raw material into the mold through the injection channel and the injection hole, thereby realizing the direct forming of the socket and the spigot at both ends of the steel strip pipe by injecting the molten plastic raw material, and no additional cutting process is required for the steel strip pipe, thereby improving the production and molding efficiency of the steel strip corrugated pipe, and eliminating the waste of materials that are turned again after molding during the manufacturing process. Secondly, the injected molten plastic is used to melt the plastic at the original steel strip pipe port and reliably weld them together, thereby improving the connection quality and structural strength of the socket and spigot at both ends of the steel strip corrugated pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0022] Figure 2 A schematic cross-sectional view of the overall structure provided for an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of a material storage barrel, a supporting assembly and a heat-insulating sleeve provided in an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the exploded structure of the thermal insulation sleeve and the movable ring provided in an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of the structure of a storage barrel provided in an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of the structure of a supporting assembly provided in an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of the structure of a supporting seat provided by an embodiment of the present invention;

[0028] Figure 8 A schematic diagram of the exploded structure of a supporting assembly provided in an embodiment of the present invention;

[0029] Fig. 9 The embodiment of the present invention provides Figure 2 A local enlarged schematic diagram of the middle A;

[0030] Fig.10 The embodiment of the present invention provides Figure 2 A local enlarged schematic diagram of point B in the middle.

[0031] Description of reference numerals:

[0032] 1. Base frame; 11. Guide column; 2. Injection assembly; 21. Sliding seat; 22. Storage barrel; 221. Injection channel; 222. Storage chamber; 223. Matching tooth groove; 224. Sliding groove; 23. Push rod; 24. First drive cylinder; 25. Second drive cylinder; 3. Loading assembly; 31. Feeding pipe; 32. Heating hopper; 33. Drive assembly; 4. Support assembly; 41. Support seat; 411. Through groove; 412. Scale surface; 42. Support wheel; 43. Movable wheel; 44. Engagement plate; 45. Sliding rod; 451. Indicator; 46. Push plate; 47. First ejector Part; 51, insulation sleeve; 511, insulation chamber; 512, air inlet pipe; 5121, cover part; 513, outlet slot; 514, air guide slot; 5141, chamfered part; 52, movable ring; 521, extension part; 522, spray outlet; 523, connecting channel; 61, movable seat; 611, detection end; 62, resistance wheel; 63, second elastic part; 71, resistance block; 711, resistance slope; 81, mounting seat; 811, contact wheel; 82, rubber plate; 821, raised part; 83, arc plate; 91, swivel valve; 92, third elastic part; 93, fourth elastic part. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0034] like Figure 1-10 As shown, an extrusion molding device for producing and processing a corrugated pipe includes a die base, on which a mold is provided for movably clamping the two ends of a steel strip pipe, and an injection hole is provided on the mold, and also includes:

[0035] A base frame 1 is provided with an injection assembly 2, the injection assembly 2 comprising a sliding seat 21, a storage barrel 22, a push rod 23 and a second driving cylinder 25. The sliding seat 21 is slidably provided on the base frame 1, the storage barrel 22 is provided on the sliding seat 21 and a connected injection channel 221 and a storage cavity 222 are provided on the storage barrel 22. The second driving cylinder 25 drives the push rod 23 to be located in the storage cavity 222 to keep the piston sliding.

[0036] A feeding assembly 3, which includes a feeding pipe 31, a heating hopper 32 and a driving assembly 33, wherein the heating hopper 32 and the driving assembly 33 are connected to a first end of the feeding pipe 31, and a second end of the feeding pipe 31 is connected to a storage chamber 222 of the storage barrel 22;

[0037] The sliding seat 21 is driven to slide so that the feeding assembly 3 and the storage barrel 22 move synchronously close to the mold base, and the first end of the storage barrel 22 abuts against the mold so that the injection channel 221 is connected to the injection hole.

[0038] Specifically, Figure 1 As shown, it also includes a first drive cylinder 24, one end of the first drive cylinder 24 is fixed to the mold base by bolts, and the other end is fixed to the sliding base 21. The first drive cylinder 24 can be used to drive the sliding of the sliding base 21. Figure 2As shown, the left end of the storage barrel 22 is the first end, and a swivel valve 91 is arranged in the injection channel 221. In the default state, the swivel valve 91 makes the feed pipe 31 communicate with the storage chamber 222, and the storage chamber 222 is separated from the injection channel 221. When the swivel valve 91 is started, the feed pipe 31 is separated from the storage chamber 222, and the storage chamber 222 is communicated with the injection channel 221. When it is necessary to produce the steel strip corrugated pipe, first, the end of the steel strip pipe is placed between the molds, and the molds are closed to clamp the end of the steel strip pipe. Then, the plastic raw material particles are placed in the heating hopper 32, and the heating hopper 32 heats and melts the plastic raw material particles to a molten state, and the driving component 33 passes the molten plastic raw material through the feed pipe 31. It is transported to the storage chamber 222, and then the swivel valve 91 is started to separate the feed pipe 31 from the storage chamber 222, while the storage chamber 222 is connected to the injection channel 221. The sliding seat 21 is driven by the first driving cylinder 24 to slide to drive the storage barrel 22 to move closer to the mold until the first end of the storage barrel 22 hits the injection hole of the mold. At this time, the injection channel 221 is connected to the injection hole, and the second driving cylinder 25 is started to make the push rod 23 slide forward in the storage chamber 222, and the molten plastic raw material in the storage chamber 222 is injected into the mold through the injection channel 221 and the injection hole. The molten plastic raw material in the mold is pressurized and cooled to form the sockets or plugs required at both ends of the steel strip corrugated pipe product. The molten plastic raw material is injected into the storage cavity 222 of the storage barrel 22 by using the feed pipe 31, the heating hopper 32 and the drive assembly 33, and then the sliding seat 21 moves to align the injection channel 221 of the storage barrel 22 with the injection hole of the mold, and the second drive cylinder 25 drives the push rod 23 to move to inject the molten plastic raw material into the mold through the injection channel 221 and the injection hole, thereby realizing the direct forming of the socket and the plug at both ends of the steel strip tube by injecting the molten plastic raw material, without the need for additional cutting process of the steel strip tube, thereby improving the production efficiency of the steel strip corrugated tube, and eliminating the waste of materials that are turned again after molding during the manufacturing process.

[0039] Generally, for higher production efficiency, the equipment can be arranged in pairs near the steel strip pipe production line, with a socket mold installed at one end and a spigot mold installed at the other end, connected by an automatic feeder. After the first equipment completes the injection molding action, the pipe moves to the second equipment to start injection molding, and at the same time, the first equipment starts injection molding of the second pipe. After this arrangement, every two socket injection molding equipment can be equipped with 5-6 steel strip pipe production lines, thereby further improving the production efficiency of steel strip corrugated pipes.

[0040] Secondly, the specific working principles and electrical connections of the heating hopper 32, the driving assembly 33 and the swivel valve 91 are common technical knowledge known to those skilled in the art and will not be elaborated here.

[0041] In the above technical scheme, the feed pipe 31, the heating hopper 32 and the drive assembly 33 are used to inject the molten plastic raw material into the storage cavity 222 of the storage barrel 22, and then the sliding seat 21 moves to align the injection channel 221 of the storage barrel 22 with the injection hole of the mold, and the second drive cylinder 25 drives the push rod 23 to move to inject the molten plastic raw material into the mold through the injection channel 221 and the injection hole, thereby realizing the direct formation of the socket and the spigot at both ends of the steel strip tube by injecting the molten plastic raw material, without the need for additional cutting process of the steel strip tube, thereby improving the production and forming efficiency of the steel strip corrugated tube, and eliminating the waste of materials that are turned again after forming in the manufacturing process. Secondly, the injected molten plastic is used to melt the plastic at the original steel strip tube port and reliably weld together, thereby improving the connection quality and structural strength of the socket and spigot at both ends of the steel strip corrugated tube.

[0042] As another embodiment provided by the present invention, it also includes a supporting assembly 4, which includes a supporting seat 41 fixedly arranged on the mold base, supporting wheels 42 are symmetrically rotatably arranged on the supporting seat 41, a slide rod 45 is horizontally slidably arranged on the supporting seat 41, and a movable wheel 43 is rotatably arranged on the slide rod 45, and the movable wheel 43 and the slide rod 45 are located between the supporting wheels 42, and the supporting wheels 42 and the movable wheels 43 are both circumferentially arranged with engaging plates 44, and the bottom linear array of the storage barrel 22 is provided with matching tooth grooves 223, and the engaging plate 44 is provided with an arc-shaped inner groove to abut against the groove bottom of the matching tooth groove 223, and the storage barrel 22 is driven to move relative to the mold so that the supporting wheels 42 and the movable wheel 43 rotate to support the storage barrel 22.

[0043] Specifically, Figure 2 As shown, the supporting assembly 4 includes a supporting seat 41, which can be fixed on the mold base by bolts, and a supporting wheel 42 and a movable wheel 43 are rotatably arranged on the supporting seat 41, and the engaging plate 44 arranged on the supporting wheel 42 and the movable wheel 43 cooperates with the matching tooth groove 223 opened on the storage barrel 22, as shown in FIG. Figure 2 As shown, the supporting wheel 42 and the movable wheel 43 on the supporting seat 41 can be rotatably matched with the matching tooth groove 223 to be supported at the bottom of the storage barrel 22. When the sliding seat 21 is driven to drive the storage barrel 22 to move, the supporting wheel 42 and the movable wheel 43 are rotated and supported at the bottom of the storage barrel 22, thereby avoiding the problem of misalignment between the injection channel 221 and the injection hole caused by the first end of the storage barrel 22 being affected by its own weight, thereby improving the stability of the storage barrel 22 during injection molding. Furthermore, since the supporting wheel 42 and the movable wheel 43 are used to rotate the storage barrel 22, the sliding resistance of the storage barrel 22 can be reduced to improve the sliding stability of the storage barrel 22, and further improve the stability of the alignment of the injection channel 221 with the injection hole; secondly, the specific rotation distance of the supporting wheel 42 can be used to determine the horizontal movement distance of the movable storage barrel 22, thereby facilitating the adjustment and placement of the distance between the mold and the storage barrel 22.

[0044] Since the movable wheel 43 and the supporting wheel 42 are both coupled with the matching tooth groove 223 of the storage barrel 22, but since the movable wheel 43 is rotatably mounted on the slide bar 45, the movable wheel 43 can also move horizontally. Therefore, when the acceleration of the storage barrel 22 driven by the sliding seat 21 is too large, the movable wheel 43 will slide horizontally synchronously with the storage barrel 22 due to its own inertia and the friction between the movable wheel 43 and the slide bar 45, and then the movable wheel 43 will rotate axially to rotate and support the storage barrel 22. In this way, when the acceleration of the movement of the storage barrel 22 is large, the movable wheel 43 lags behind the supporting wheel 42 in rotation, thereby avoiding the resonance caused by the synchronous and rapid rotation of the movable wheel 43 and the supporting wheel 42, which increases the vertical shaking problem of the storage barrel 22, further improves the sliding stability of the storage barrel 22, and ensures the alignment accuracy of the injection channel 221 and the injection hole.

[0045] Furthermore, the engaging plates 44 of the supporting wheel 42 and the movable wheel 43 are both provided with arc-shaped inner grooves to abut against the groove bottoms of the matching tooth grooves 223 . The groove bottoms of the matching tooth grooves 223 are on an arc surface coaxial with the storage barrel 22 . When the supporting wheel 42 and the movable wheel 43 rotate, the engaging plate 44 moves circumferentially to engage in the mating tooth groove 223 in sequence, and the inner groove of the engaging plate 44 contacts the groove bottom surface of the mating tooth groove 223 to further improve the supporting stability of the supporting wheel 42 and the movable wheel 43 on the storage barrel 22. Moreover, since the bottom surface of the inner groove of the engaging plate 44 and the groove bottom surface of the mating tooth groove 223 are both coaxially arranged with the storage barrel 22 when the engaging plate 44 is engaged with the mating tooth groove 223, the supporting wheel 42 and the movable wheel 43 can also correct the horizontal deviation of the storage barrel 22 through the cooperation between the engaging plate 44 and the mating tooth groove 223, thereby further improving the injection molding stability of the storage barrel 22.

[0046] As another embodiment provided by the present invention, the slide rod 45 is provided with an indicating portion 451 extending to the scale surface 412 arranged on the outside of the supporting seat 41, and the supporting seat 41 is symmetrically provided with a push plate 46 and a first elastic member 47. The first elastic member 47 pushes the push plate 46 to squeeze the slide rod 45 and the movable wheel 43 in the middle between the two supporting wheels 42, and the indicating portion 451 is aligned with the scale in the middle of the scale surface 412.

[0047] Specifically, Figure 7 As shown, a through slot 411 is formed on the support seat 41, and the indicator portions 451 provided at both ends of the slide bar 45 extend through the through slot 411 to the scale surface 412 of the support seat 41. Fig. 9As shown, a first elastic member 47 and a push plate 46 are symmetrically arranged in the support seat 41. In the default state, the first elastic member 47 drives the push plate 46 to push the slide bar 45 and the movable wheel 43 to the middle of the two support wheels 42, and the indicating portion 451 is aligned with the scale in the middle of the scale surface 412, because the slide bar 45 can move horizontally.

[0048] When the acceleration of the storage barrel 22 driven by the sliding seat 21 is too large, the movable wheel 43 and the slide bar 45 will follow the storage barrel 22 to slide horizontally synchronously to squeeze the first elastic member 47 due to its own inertia and the friction between the movable wheel 43 and the slide bar 45. The movable wheel 43 will then rotate axially to rotate and support the storage barrel 22. After the acceleration of the movement of the storage barrel 22 is reduced, the first elastic member 47 pushes the slide bar 45 to slide and reset until the indicator portion 451 is aligned with the middle of the scale surface 412, and then the first elastic member 47 is used to reset the slide bar 45 and the movable wheel 43. Secondly, the first elastic member 47 also serves as a buffer during the accelerated movement of the storage barrel 22, thereby reducing the vibration of the storage barrel 22 during the horizontal sliding process and improving the movement stability of the storage barrel 22.

[0049] During the long-term operation of the sliding seat 21 driving the storage barrel 22 to move for injection molding, the first end of the storage barrel 22 will inevitably deviate vertically or horizontally, so that the axis direction of the storage barrel 22 and the movement direction of the storage barrel 22 will have an error. When the storage barrel 22 deviates vertically downward due to its own weight or vibration, the height of the left end of the storage barrel 22 is lower than the height of the right end. Fig. 9 As shown, the pressure on the supporting wheel 42 on the left side is greater than that on the supporting wheel 42 on the right side. The pressure on the supporting wheel 42 on the storing barrel 22 is smaller, and the pressure on the movable wheel 43 in the middle part by the storing barrel 22 is converted from the original vertical downward pressure to an inclined vertical downward pressure, so that when the movable wheel 43 moves while supporting the storing barrel 22 that is deflected vertically downward, the movable wheel 43 will slide closer to the supporting wheel 42 on the right side due to the inclined pressure of the storing barrel 22. At this time, the indicating portion 451 of the sliding rod 45 moves from the middle of the scale surface 412 to the right side to indicate the vertical degree of the storing barrel 22, and then the movable wheel 43 and the sliding rod 45 are used to visualize the vertical deflection degree of the storing barrel 22, so as to facilitate the inspection and maintenance of the storing barrel 22 during operation and improve the safety of use.

[0050] When the material storage barrel 22 is subjected to vibration and other factors and produces horizontal left-right deviation, the groove bottom surface of the matching tooth groove 223 of the material storage barrel 22 and the inner groove bottom surface of the supporting wheel 42 and the movable wheel 43 produce horizontal deviation and pressurize and resist, thereby increasing the friction between the material storage barrel 22 and the supporting wheel 42 on the left side. When the material storage barrel 22 slides to the left following the sliding seat 21, the friction between the material storage barrel 22 and the movable wheel 43 is increased due to the horizontal deviation. At this time, due to the existence of the friction force of the deviation, the movable wheel 43 will drive the movable wheel 43 and the slide bar 45 to slide to the left while rotating to support the material storage barrel 22, thereby causing the indicating portion 451 of the slide bar 45 to slide to the left from the middle of the scale surface 412. The movable wheel 43 and the slide bar 45 can be used to visualize the horizontal deviation degree of the material storage barrel 22, so as to facilitate the inspection and maintenance of the material storage barrel 22 during operation and improve the safety of use.

[0051] Furthermore, the first elastic member 47 can be replaced by a spring, an airbag, an elastic plate or other elastic objects known to those skilled in the art.

[0052] As another embodiment provided by the present invention, it also includes a heat-insulating sleeve 51 coaxially arranged on the storage barrel 22, the heat-insulating sleeve 51 is provided with an air inlet pipe 512 connected with the heat-insulating chamber 511 opened inside the heat-insulating sleeve 51, the air inlet pipe 512 is provided with a cover portion 5121 provided on the second driving cylinder 25, the supporting seat 41 is provided with a push block 71, and the heat-insulating chamber 511 is provided with a movable ring 52 for sealing the heat-insulating chamber 511 in a default state. The storage barrel 22 is driven to move closer to the mold so that the heat-insulating sleeve 51 is closer to the push block 71, and the push block 71 pushes the movable ring 52 to slide relative to the heat-insulating sleeve 51 to make the heat-insulating chamber 511 communicate with the outside.

[0053] Specifically, Figure 2 As shown, the insulation sleeve 51 is coaxially sleeved on the storage barrel 22, and the interior of the air inlet pipe 512 of the insulation sleeve 51 is connected to the insulation chamber 511 in the insulation sleeve 51 through the second driving cylinder 25. When the loading component 3 injects the molten plastic raw material into the storage chamber 222, the wind in the air inlet pipe 512 passes through the second driving cylinder 25 to take away the heat emitted from the second driving cylinder 25, and introduces the hot air into the insulation chamber 511 of the insulation sleeve 51, and then the insulation sleeve 51 is used to insulate the molten plastic raw material in the storage chamber 222, so as to avoid the problem of reduced fluidity caused by excessive temperature loss of the molten plastic raw material in the storage chamber 222, thereby improving the subsequent injection molding quality.

[0054] The movable ring 52 is slidably arranged in the insulation cavity 511 of the insulation sleeve 51. When the feeding component 3 injects the molten plastic raw material into the storage cavity 222, the movable ring 52 is in a default state to seal and insulate the insulation cavity 511. The air inlet pipe 512 blows air into the insulation cavity 511 to heat and pressurize it, thereby further improving the insulation of the molten plastic raw material in the storage barrel 22. When the sliding seat 21 drives the storage barrel 22 to move toward the mold for injection extrusion, the insulation sleeve 51 moves synchronously with the storage barrel 22 to approach the push block 71 on the supporting seat 41, and the push block 71 pushes the movable ring 52 to slide relative to the insulation sleeve 51, so that the movable ring 52 is no longer sealed and insulated. The hot air in the heat preservation chamber 511 flows out to the outside to achieve heat dissipation and cooling of the second driving cylinder 25 and the storage barrel 22, and then the push rod 23 pushes the molten plastic raw material in the storage chamber 222 to be extruded toward the injection channel 221 for injection molding. At this time, the outer wall of the storage barrel 22 is cooled to a certain extent by the airflow passing through the heat preservation sleeve 51 and the air inlet pipe 512, and the molten plastic near the inner wall of the storage chamber 222 is cooled and the fluidity is slightly reduced, thereby making the thrust at the gap between the push rod 23 and the inner wall of the storage chamber 222 greater, thereby increasing the extrusion speed of the push rod 23 when moving to extrude the molten plastic, and improving the stability of injection molding. Secondly, although the push rod 23 and the inner wall of the storage chamber 222 are piston-sliding fit, there is still inevitably a gap between the push rod 23 and the inner wall of the storage chamber 222. Therefore, when the push rod 23 moves and slides to extrude and inject the molten plastic raw material in the storage chamber 222, part of the molten plastic raw material will still stick to the inner wall of the storage chamber 222, and the insulation sleeve 51 and the air inlet pipe 512 can cool and solidify the molten plastic raw material adhered to the inner wall of the storage chamber 222 to further increase the flatness of the inner wall of the storage chamber 222, thereby improving the sealing between the push rod 23 and the storage chamber 222 when the piston slides, and further improving the stability of the push rod 23 and the storage barrel 22 during injection molding.

[0055] As another embodiment provided by the present invention, a rectangular array of guide slide columns 11 that slide with the sliding seat 21 is provided on the base frame 1, a circular array of movable seats 61 that slide radially along the insulation sleeve 51 is provided on the insulation sleeve 51, a second elastic member 63 and a rotatably arranged resistance wheel 62 are provided on the movable seat 61, the movable seat 61 is driven to slide so that the resistance wheel 62 respectively resists against a number of guide slide columns 11, and a detection end 611 facing the storage barrel 22 is provided on the movable seat 61.

[0056] Specifically, Figure 1As shown, the sliding seat 21 is slidably matched with the guide slide post 11 of the base frame 1 to increase the sliding stability of the sliding seat 21, and a movable seat 61 is arranged in a circumferential array on the heat preservation sleeve 51, and the second elastic member 63 pushes the movable seat 61 so that the contact wheels 62 on the movable seat 61 respectively contact with a plurality of guide slide posts 11. When the sliding seat 21 drives the storage barrel 22 to move closer relative to the mold, the heat preservation sleeve 51 slides synchronously with the storage barrel 22 so that the contact wheels 62 contact and roll on the guide slide post 11. If the storage barrel 22 has a tilt error due to its own weight or vibration, the axis of the storage barrel 22 will have an angle difference with the axis of the guide slide post 11, so The distance between the multiple groups of movable seats 61 and the abutment wheels 62 on the insulation sleeve 51 relative to the guide slide column 11 will change. The movable seat 61 located on the side of the skew direction of the storage barrel 22 will be closer to the guide slide column 11, so that the movable seat 61 compresses the second elastic member 63 and the deformation distance increases, and the detection end 611 of the movable seat 61 will be closer to the storage barrel 22. Therefore, a distance sensor can be installed on the detection end 611 to detect the distance between the detection end 611 and the surface of the storage barrel 22 to determine the skew deviation direction of the storage barrel 22, thereby realizing the deviation detection of the storage barrel 22 during the movement process, which is convenient for the maintenance and inspection of the storage barrel 22.

[0057] Furthermore, the end of the storage barrel 22 where the injection channel 221 is opened often has an inclined annular surface, and the injection hole of the mold also has an inclined annular surface. When the storage barrel 22 moves close to the injection hole to connect the injection channel 221 with the injection hole, the inclined annular surface of the storage barrel 22 contacts the inclined annular surface of the injection hole to complete the alignment of the axis of the storage barrel 22 and the injection hole. However, due to the installation process, the axis of the storage barrel 22 cannot be completely aligned with the axis of the injection hole. Therefore, when the storage barrel 22 moves toward the mold and the inclined annular surface of the storage barrel 22 contacts the inclined annular surface of the injection hole, the end of the storage barrel 22 slides into the injection hole due to the contact pressure, but the storage barrel 22 itself will inevitably become skewed and deformed, so that the end of the storage barrel 22 is coaxially aligned with the injection hole. At this time, the deformation pressure on the end of the storage barrel 22 connected to the sliding seat 21 is the largest, so that the storage barrel 22 is skewed as a whole. Since the insulation sleeve 51 on the storage barrel 22 is provided with multiple sets of movable seats 61 and abutment wheels 62, the movable seat 61 on the side of the tilting direction of the storage barrel 22 will be closer to the guide slide 11, so that the deformation distance of the movable seat 61 compressing the second elastic member 63 is increased. At this time, several groups of second elastic members 63 will be located at the right end of the insulation sleeve 51 to apply pressure to the insulation sleeve 51 in the direction opposite to the skew deviation direction of the storage barrel 22, so that the left end of the insulation sleeve 51 is subjected to the pressure of the second elastic member 63 and applies pressure to the middle part of the storage barrel 22 in the direction of the skew deviation direction of the storage barrel 22, thereby balancing the deflection pressure on the two ends and the middle part of the storage barrel 22, thereby reducing the radial deformation of the storage cavity 222 inside the storage barrel 22, avoiding the jamming problem of the push rod 23 due to the radial deformation of the storage cavity 222, and improving the stability of injection molding.

[0058] The second elastic member 63 can be replaced by any elastic object known to those skilled in the art, such as a spring, an elastic plate, an airbag, etc.

[0059] As another embodiment provided by the present invention, the insulation sleeve 51 is coaxially slidably arranged on the storage barrel 22, the push block 71 is slidably arranged on the support seat 41, and a third elastic member 92 is provided on the storage barrel 22 to push the insulation sleeve 51 to slide back to the sliding seat 21, and a fourth elastic member 93 is provided on the support seat 41 to drive the push block 71 to slide out to maintain a default state. After the storage barrel 22 is driven to move close to the mold so that the push block 71 in the default state pushes the insulation sleeve 51 to compress the third elastic member 92 to slide to the end of the sliding stroke of the insulation sleeve 51, the insulation sleeve 51 follows the storage barrel 22 to move synchronously to squeeze the push block 71 to slide to compress the fourth elastic member 93.

[0060] Specifically, Fig. 9As shown, a sliding groove 224 is provided on the material storage barrel 22, and the heat preservation sleeve 51 is coaxially slidably arranged on the material storage barrel 22 through the sliding groove 224, and the third elastic member 92 drives the heat preservation sleeve 51 to slide on the material storage barrel 22 away from the sliding seat 21, and the fourth elastic member 93 drives the push block 71 to slide out of the supporting seat 41 to be located in a default state. When the sliding seat 21 drives the material storage barrel 22 to move toward the mold for injection extrusion, the heat preservation sleeve 51 moves synchronously with the material storage barrel 22 to approach the push block 71 on the supporting seat 41, and the second elastic member 63 on the heat preservation sleeve 51 drives the movable seat 61 to move so that the contact wheel 62 contacts and rolls on the guide slide column 11, and then the movable seat 61, the second elastic member 63 and the contact wheel 62 are used to detect the parallelism of the axis of the material storage barrel 22 and the guide slide column 11, so as to monitor whether the material storage barrel 22 has a skew error.

[0061] As the sliding seat 21 continues to move, the pushing block 71 pushes the movable ring 52 to slide relative to the insulation sleeve 51 so that the movable ring 52 no longer seals the insulation chamber 511, and the hot air in the insulation chamber 511 flows out to the outside to achieve heat dissipation and cooling of the second drive cylinder 25 and the storage barrel 22. When the movable ring 52 slides to the point where it no longer seals the insulation chamber 511, the pushing block 71 pushes the insulation sleeve 51 as a whole relative to the storage barrel 22 to compress the third elastic member 92 to slide. At this time, the insulation sleeve 51 slides relative to the storage barrel 22 but remains stationary relative to the guide slide post 11. Therefore, at this moment, the movable seat 61, the second elastic member 63 and the contact wheel 62 are used to detect the parallelism of the axes of the storage barrel 22 and the insulation sleeve 51, thereby further correcting the parallelism error between the axes of the storage barrel 22 and the guide slide post 11, and improving the detection accuracy of the storage barrel 22. Secondly, the sliding of the movable ring 52 and no longer sealing the insulation chamber 511 is used as an interval signal. When the insulation chamber 511 remains sealed, the movable seat 61, the second elastic member 63 and the abutment wheel 62 are used to detect the axial parallelism of the storage barrel 22 and the guide slide column 11. When the insulation chamber 511 is no longer sealed and heat is dissipated, the movable seat 61, the second elastic member 63 and the abutment wheel 62 are used to detect the axial parallelism of the storage barrel 22 and the insulation sleeve 51, thereby facilitating actual operation and monitoring.

[0062] Then, the sliding seat 21 continues to drive the storage barrel 22 to move closer to the mold, and the insulation sleeve 51 has compressed the third elastic member 92 to slide to the end of its sliding stroke. The insulation sleeve 51 and the storage barrel 22 remain relatively still again. At this time, the storage barrel 22 drives the insulation sleeve 51 to squeeze the push block 71, so that the push block 71 slides and squeezes the fourth elastic member 93 to slide and retract into the support seat 41 until the end of the storage barrel 22 contacts the injection hole. At this time, the fourth elastic member 93 plays a role in slowing down the storage barrel 22 when it moves close to the injection hole, avoiding a large impact when the storage barrel 22 contacts the injection hole, which causes the storage barrel 22 or the injection hole to be deformed and damaged.

[0063] The third elastic member 92 and the fourth elastic member 93 may be replaced by springs, air bags, elastic plates, and other elastic objects known to those skilled in the art.

[0064] Furthermore, a groove 513 is provided on the insulation sleeve 51, and an extension portion 521 sliding in the groove 513 is provided on the movable ring 52, and a spray port 522 is provided on the extension portion 521. A connecting passage 523 is provided on the movable ring 52, which is located in the insulation chamber 511 and communicated with the spray port 522. The movable ring 52 is in a default state so that the spray port 522 is blocked in the groove 513, and the movable ring 52 is driven to slide so that the extension portion 521 extends out of the groove 513 to communicate with the spray port 522 with the outside.

[0065] The protruding portion 521 of the movable ring 52 is slidably arranged in the outlet groove 513 of the insulation sleeve 51. When the movable ring 52 is in a default state, the ejection outlet 522 of the protruding portion 521 is blocked by the inner wall of the outlet groove 513, so that the movable ring 52 seals the insulation chamber 511 of the insulation sleeve 51; when the pushing block 71 pushes the movable ring 52, the movable ring 52 slides to make the protruding portion 521 slide out of the outlet groove 513, and the ejection outlet 522 moves to communicate with the outside world. At this time, the gas in the insulation chamber 511 can be ejected to the outside world along the connecting channel 523 and the ejection outlet 522 to dissipate heat.

[0066] Furthermore, the insulation sleeve 51 is provided with a through slot 513 connected to the air guide slot 514, and the first end of the air guide slot 514 is provided with a chamfered portion 5141 facing the guide column 11, and the movable ring 52 is driven to slide so that the extension portion 521 extends out of the through slot 513 so that the ejection port 522 faces the air guide slot 514. Figure 4 As shown, the end of the air guide groove 514 facing away from the outlet groove 513 is the first end, and a chamfered portion 5141 is arranged on the first end. When the movable ring 52 is driven to slide so that the extending portion 521 extends out of the outlet groove 513, the ejection port 522 faces the air guide groove 514, so that the gas in the heat preservation chamber 511 is ejected along the ejection port 522 and then blown along the air guide groove 514 and the chamfered portion 5141 to the contact wheel 62 and the guide slide column 11, thereby blowing off and cleaning the debris or dust adhering to the contact wheel 62 and the guide slide column 11, thereby improving the sliding and rolling stability of the sliding seat 21 and the contact wheel 62.

[0067] As another embodiment provided by the present invention, a mounting seat 81 is provided in the supporting seat 41, and a rubber plate 82 is provided on the mounting seat 81. The rubber plate 82 is symmetrically provided with semi-cylindrical protrusions 821 located on both sides of the movable wheel 43 to separate the movable wheel 43 from the supporting wheel 42. An arc plate 83 is provided in the rubber plate 82, and both ends of the arc plate 83 extend into the protrusions 821 respectively. The movable wheel 43 is driven to move horizontally to squeeze any one of the protrusions 821 so that the other protrusion 821 is squeezed and lifted by the arc plate 83 to support the upper supporting wheel 42.

[0068] Specifically, Fig. 9 As shown, a mounting seat 81 is provided in the supporting seat 41, and a rubber plate 82 is provided on the mounting seat 81. Two protrusions 821 of the rubber plate 82 are respectively located on both sides of the movable wheel 43 to separate the movable wheel 43 and the supporting wheel 42. The existence of the protrusions 821 can prevent the movable wheel 43 from sliding horizontally due to excessive pressure from the storage barrel 22 and colliding with the supporting wheel 42 to cause teeth breaking, thereby improving the supporting stability of the movable wheel 43 and the supporting wheel 42 on the storage barrel 22.

[0069] An arc-shaped plate 83 is also provided inside the rubber plate 82. Both ends of the arc-shaped plate 83 extend into the raised portion 821 and the convex arc side of the arc-shaped plate 83 faces away from the storage barrel 22. When the storage barrel 22 is vertically deflected downward by its own weight or vibration, the height of the left end of the storage barrel 22 is lower than that of the right end. Fig. 9 As shown, the pressure on the left supporting wheel 42 from the storage barrel 22 is greater, and the pressure on the right supporting wheel 42 from the storage barrel 22 is smaller, and the pressure of the storage barrel 22 on the middle movable wheel 43 is converted from the original vertical downward pressure to an inclined vertical downward pressure, so that when the movable wheel 43 moves while supporting the storage barrel 22 that is vertically deflected downward, the movable wheel 43 will slide closer to the right supporting wheel 42 due to the inclined pressure of the storage barrel 22, and at this time, the indicating portion 451 of the slide bar 45 moves from the middle of the scale surface 412 to the right to indicate the storage barrel At the same time, the movable wheel 43 will squeeze the raised portion 821 on the right side of the rubber plate 82 so that the right end of the arc-shaped plate 83 is pressed and the left end is lifted. At this time, the raised portion 821 on the left side of the rubber plate 82 is driven by the arc-shaped plate 83 to lift up to support the raised portion 821 on the left side, thereby increasing the vertical supporting force of the supporting wheel 42 close to the left end of the storage barrel 22, so that the supporting wheel 42 on the left side is lifted to a certain extent vertically to correct the offset of the storage barrel 22 that has vertically deviated downward, thereby improving the injection molding stability of the storage barrel 22.

[0070] When the storage barrel 22 is subjected to vibration and other factors and produces horizontal left-right deviation, the groove bottom surface of the matching tooth groove 223 of the storage barrel 22 and the inner groove bottom surface of the supporting wheel 42 and the movable wheel 43 produce horizontal deviation and pressurize and resist, thereby increasing the friction between the storage barrel 22 and the left supporting wheel 42. When the storage barrel 22 slides to the left following the sliding seat 21, the storage barrel 22 increases the friction between the movable wheel 43 due to the horizontal deviation. At this time, due to the existence of the friction force of the deviation, the movable wheel 43 will drive the movable wheel 43 and the slide bar 45 to slide to the left while rotating the supporting storage barrel 22, thereby making the index of the slide bar 45 The indicating portion 451 slides to the left from the middle of the scale surface 412. At the same time, the movable wheel 43 squeezes the raised portion 821 on the left side of the rubber plate 82 so that the left end of the arc-shaped plate 83 is pressed and the right end is lifted. At this time, the raised portion 821 on the right side of the rubber plate 82 is driven by the arc-shaped plate 83 to lift up to support the raised portion 821 on the right side, thereby increasing the vertical supporting force of the supporting wheel 42 close to the right side of the fixed end of the storage barrel 22, so that the supporting wheel 42 on the right side is squeezed and pressed against the storage barrel 22 through the inner groove of the engaging plate 44 thereon to correct the offset of the storage barrel 22 that has been horizontally offset, thereby improving the injection molding stability of the storage barrel 22.

[0071] As another embodiment provided by the present invention, the mounting seat 81 is vertically inclined and slidably arranged in the supporting seat 41, a pushing slope 711 is arranged on the pushing block 71, and a contact wheel 811 that abuts against the pushing slope 711 is rotatably arranged on the mounting seat 81, the pushing block 71 is driven to slide and compress the fourth elastic member 93 so that the pushing slope 711 pushes the contact wheel 811 to move, and the mounting seat 81 is driven to move vertically and tilt upward so that the rubber plate 82 is vertically inclined and lifted and pushes the supporting wheel 42 to rotate and push the end of the storage barrel 22 to be pressed tightly into the injection hole, and then the rubber plate 82 abuts against the locking supporting wheel 42 and the movable wheel 43.

[0072] Specifically, Fig. 9As shown, the contact wheel 811 of the mounting seat 81 abuts against the push slope 711, and the mounting seat 81 is inclined and vertically slidably arranged in the supporting seat 41. When the sliding seat 21 continues to drive the storage barrel 22 to move closer to the mold, and the insulation sleeve 51 has compressed the third elastic member 92 to slide to the end of its sliding stroke, the insulation sleeve 51 and the storage barrel 22 remain relatively still again. At this time, the storage barrel 22 drives the insulation sleeve 51 to squeeze the push block 71, thereby causing the push block 71 to slide and squeeze the fourth elastic member 93 to slide and retract into the supporting seat 41 until the end of the storage barrel 22 abuts against the injection hole. At this time, since the push block 71 is compressed and the fourth elastic member 93 slides, the push slope 711 pushes the contact wheel 811 to roll and push the mounting seat 81 to tilt vertically. The mounting seat 81 is vertically inclined and slidingly lifted. When the end of the storage barrel 22 contacts the injection hole, the mounting seat 81 is lifted to contact the supporting wheel 42 and the movable wheel 43. Since the mounting seat 81 is vertically inclined and slidingly set, the rubber plate 82 on the mounting seat 81 will also push the supporting wheel 42 and the movable wheel 43 to rotate counterclockwise, and then utilize the driven rotation of the supporting wheel 42 and the movable wheel 43 to drive the storage barrel 22 to further pressurize and contact the injection hole, thereby improving the injection molding stability of the storage barrel 22. The mounting seat 81 lifts the rubber plate 82 to contact and lock the supporting wheel 42 and the movable wheel 43, thereby further realizing the locking of the storage barrel 22 during injection molding, avoiding the problem of poor injection molding quality caused by the shaking of the storage barrel 22 and the gap between it and the injection hole.

[0073] Working principle: First, the end of the steel strip tube is placed between the molds, and the molds are closed to clamp the end of the steel strip tube. Then, the plastic raw material particles are placed in the heating hopper 32. The heating hopper 32 heats and melts the plastic raw material particles to a molten state, and the driving component 33 transports the molten plastic raw material to the storage chamber 222 through the feeding pipe 31. The movable ring 52 is in the default state to seal and insulate the insulation chamber 511, and the air inlet pipe 512 blows air into the insulation chamber 511 for heating and pressurization;

[0074] Then, the swivel valve 91 is started to separate the feed pipe 31 from the material storage chamber 222, while the material storage chamber 222 is connected to the injection channel 221. The sliding seat 21 is driven by the first driving cylinder 24 to slide so as to drive the material storage barrel 22 to move closer to the mold. The heat preservation sleeve 51 moves synchronously with the material storage barrel 22 to move closer to the push block 71 on the supporting seat 41. The second elastic member 63 on the heat preservation sleeve 51 drives the movable seat 61 to move so that the abutment wheel 62 abuts against the guide slide column 11 and rolls. Then, the movable seat 61, the second elastic member 63 and the abutment wheel 62 are used to detect the parallelism of the axis of the material storage barrel 22 and the guide slide column 11.

[0075] As the sliding seat 21 continues to move, the pushing block 71 pushes the movable ring 52 to slide relative to the insulation sleeve 51 so that the movable ring 52 no longer seals the insulation chamber 511, and the hot air in the insulation chamber 511 flows out to the outside to achieve heat dissipation and cooling of the second driving cylinder 25 and the storage barrel 22. When the movable ring 52 slides to no longer seal the insulation chamber 511, the pushing block 71 pushes the insulation sleeve 51 as a whole relative to the storage barrel 22 to compress the third elastic member 92 to slide. At this time, the insulation sleeve 51 slides relative to the storage barrel 22 but is stationary relative to the guide slide column 11. Therefore, at this moment, the movable seat 61, the second elastic member 63 and the contact wheel 62 are used to detect the parallelism of the axes of the storage barrel 22 and the insulation sleeve 51.

[0076] Then, the sliding seat 21 continues to drive the storage barrel 22 to move closer to the mold, and the insulation sleeve 51 has compressed the third elastic member 92 to slide to the end of its sliding stroke. The insulation sleeve 51 and the storage barrel 22 remain relatively still again. At this time, the storage barrel 22 drives the insulation sleeve 51 to squeeze the push block 71, so that the push block 71 slides and squeezes the fourth elastic member 93 to slide and retract into the support seat 41 until the end of the storage barrel 22 contacts the injection hole. At this time, since the push block 71 is compressed and the fourth elastic member 93 slides, the push slope 711 pushes the contact wheel 811 to roll and pushes the mounting seat 81 to slide and lift vertically. When the end of the storage barrel 22 contacts the injection hole, After the injection molding, the mounting seat 81 is lifted to contact the supporting wheel 42 and the movable wheel 43. Since the mounting seat 81 is vertically inclined and slidable, the rubber plate 82 on the mounting seat 81 will also push the supporting wheel 42 and the movable wheel 43 to rotate counterclockwise, and then the supporting wheel 42 and the movable wheel 43 are driven to rotate to drive the storage barrel 22 to further pressurize and contact the injection hole, thereby improving the injection molding stability of the storage barrel 22, and the mounting seat 81 lifts the rubber plate 82 to contact and lock the supporting wheel 42 and the movable wheel 43;

[0077] At this time, the injection channel 221 is connected to the injection hole, and the second driving cylinder 25 is started to make the push rod 23 slide forward in the storage chamber 222, and the molten plastic raw material in the storage chamber 222 is injected into the mold through the injection channel 221 and the injection hole. The molten plastic raw material in the mold is pressurized and cooled to form the sockets or plugs required at both ends of the steel strip corrugated pipe product.

[0078] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An extrusion molding device for producing and processing a corrugated pipe, comprising a die base, on which a mold is arranged to be movable and clamped at both ends of a steel strip pipe, and an injection hole is opened on the mold, characterized in that: Also includes: A base frame (1) is provided with an injection assembly (2), the injection assembly (2) comprising a sliding seat (21), a material storage barrel (22), a push rod (23) and a second driving cylinder (25), the sliding seat (21) is slidably provided on the base frame (1), the material storage barrel (22) is provided on the sliding seat (21) and a communicating injection channel (221) and a material storage chamber (222) are provided on the material storage barrel (22), and the second driving cylinder (25) drives the push rod (23) to be located in the material storage chamber (222) to keep the piston sliding; A feeding assembly (3), comprising a feeding pipe (31), a heating hopper (32) and a driving assembly (33), wherein the heating hopper (32) and the driving assembly (33) are connected to a first end of the feeding pipe (31), and a second end of the feeding pipe (31) is connected to a storage chamber (222) of the storage barrel (22); The sliding seat (21) is driven to slide so that the feeding assembly (3) and the storage barrel (22) move synchronously close to the mold base, and the first end of the storage barrel (22) contacts the mold so that the injection channel (221) is connected to the injection hole; It also includes a supporting assembly (4), which includes a supporting seat (41) fixedly arranged on the mold base, a supporting wheel (42) symmetrically rotatably arranged on the supporting seat (41), a sliding rod (45) horizontally slidably arranged on the supporting seat (41), a movable wheel (43) rotatably arranged on the sliding rod (45), the movable wheel (43) and the sliding rod (45) are located between the supporting wheel (42), the supporting wheel (42) and the movable wheel (43) are both circumferentially arrayed with engaging plates (44), the bottom of the storage barrel (22) is provided with a matching tooth groove (223) in a linear array, the engaging plate (44) is provided with an arc-shaped inner groove to abut against the groove bottom of the matching tooth groove (223), and the storage barrel (22) is driven to move relative to the mold so that the supporting wheel (42) and the movable wheel (43) rotate to support the storage barrel (22); The slide bar (45) is provided with an indicating portion (451) extending to the scale surface (412) provided outside the support seat (41), and a push plate (46) and a first elastic member (47) are symmetrically provided inside the support seat (41), and the first elastic member (47) pushes the push plate (46) to squeeze the slide bar (45) and the movable wheel (43) in the middle between the two support wheels (42), and the indicating portion (451) is aligned with the scale in the middle of the scale surface (412); The invention also comprises a heat preservation sleeve (51) coaxially arranged on the material storage barrel (22); the heat preservation sleeve (51) is provided with an air inlet pipe (512) connected with a heat preservation chamber (511) opened inside the heat preservation sleeve (51); the air inlet pipe (512) is provided with a cover portion (5121) covered on the second driving cylinder (25); the support seat (41) is provided with a push block (71); the heat preservation chamber (511) is provided with a movable ring (52) for sealing the heat preservation chamber (511) in a default state; the material storage barrel (22) is driven to move closer to the mold so that the heat preservation sleeve (51) moves closer to the push block (71); and the push block (71) pushes the movable ring (52) to slide relative to the heat preservation sleeve (51) so that the heat preservation chamber (511) is connected to the outside.

2. The extrusion molding equipment for producing and processing a corrugated pipe according to claim 1, characterized in that: The base frame (1) is provided with a rectangular array of guide slide columns (11) that are slidably matched with the sliding seat (21); the thermal insulation sleeve (51) is provided with a circumferential array of movable seats (61) that slide radially along the thermal insulation sleeve (51); the movable seat (61) is provided with a second elastic member (63) and a rotatably arranged abutment wheel (62); the movable seat (61) is driven to slide so that the abutment wheel (62) respectively abuts against a plurality of guide slide columns (11); and the movable seat (61) is provided with a detection end (611) that faces the storage barrel (22).

3. The extrusion molding equipment for producing and processing a corrugated pipe according to claim 2, characterized in that: The heat-insulating sleeve (51) is coaxially slidably arranged on the material storage barrel (22), the push block (71) is slidably arranged on the support seat (41), the material storage barrel (22) is provided with a third elastic member (92) for pushing the heat-insulating sleeve (51) to slide away from the sliding seat (21), and the support seat (41) is provided with a fourth elastic member (93) for driving the push block (71) to slide out to maintain a default state, and after the material storage barrel (22) is driven to move close to the mold so that the push block (71) in the default state pushes the heat-insulating sleeve (51) to compress the third elastic member (92) to slide to the end of the sliding stroke of the heat-insulating sleeve (51), the heat-insulating sleeve (51) follows the material storage barrel (22) to move synchronously to squeeze the push block (71) to slide to compress the fourth elastic member (93).

4. The extrusion molding equipment for producing and processing a corrugated pipe according to claim 3 is characterized in that: A mounting seat (81) is arranged inside the supporting seat (41), a rubber plate (82) is arranged on the mounting seat (81), and semi-cylindrical protrusions (821) are symmetrically arranged on the rubber plate (82) and located on both sides of the movable wheel (43) to separate the movable wheel (43) and the supporting wheel (42), an arc plate (83) is arranged inside the rubber plate (82), and both ends of the arc plate (83) extend into the protrusions (821) respectively, and the movable wheel (43) is driven to move horizontally to squeeze any protrusion (821) so that the other protrusion (821) is squeezed and lifted by the arc plate (83) to support the upper supporting wheel (42).

5. The extrusion molding equipment for producing and processing a corrugated pipe according to claim 4, characterized in that: The mounting seat (81) is vertically tilted and slidably arranged in the supporting seat (41); the pushing block (71) is provided with a pushing slope (711); the mounting seat (81) is rotatably provided with a contact wheel (811) that abuts against the pushing slope (711); the pushing block (71) is driven to slide and compress the fourth elastic member (93) so that the pushing slope (711) pushes the contact wheel (811) to move; and the mounting seat (81) is driven to vertically tilt upward so that the rubber plate (82) is vertically tilted and lifted and pushes the supporting wheel (42) to rotate and push the end of the storage barrel (22) to be pressed tightly into the injection hole, and then the rubber plate (82) abuts against the locking supporting wheel (42) and the movable wheel (43).

6. The extrusion molding equipment for producing and processing a corrugated pipe according to claim 3, characterized in that: The heat-insulating sleeve (51) is provided with a through-groove (513); the movable ring (52) is provided with a protruding portion (521) which slides in the through-groove (513); the protruding portion (521) is provided with a spray port (522); the movable ring (52) is provided with a connecting passage (523) which is located in the heat-insulating chamber (511) and communicates with the spray port (522); the movable ring (52) is in a default state so that the spray port (522) is blocked in the through-groove (513); the movable ring (52) is driven to slide so that the protruding portion (521) protrudes out of the through-groove (513) so that the spray port (522) communicates with the outside.

7. The extrusion molding equipment for producing and processing corrugated pipes according to claim 6, characterized in that: The heat-insulating sleeve (51) is provided with an outlet groove (513) connected to the air guide groove (514); the first end of the air guide groove (514) is provided with a chamfered portion (5141) facing the guide column (11); the movable ring (52) is driven to slide so that the extending portion (521) extends out of the outlet groove (513) so that the ejection port (522) faces the air guide groove (514).

Images