Positioning equipment for injection molding of steel skeleton pipe
By using positioning components and drive units to fix the steel skeleton pipe in the injection molding equipment, the problem of skewing caused by vibration was solved, achieving efficient and stable injection molding and improving product quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ZHENGYUAN PIPE IND CO LTD
- Filing Date
- 2025-03-07
- Publication Date
- 2026-04-28
AI Technical Summary
During the injection molding process, the steel skeleton pipe is prone to tilting due to slight vibration of the drive device, resulting in substandard product quality.
A positioning device, including a positioning component and a drive unit, is used to fix the steel skeleton tube by a positioning part that extends axially along the positioning component. Combined with the movement of the guide rod and the mold closing component, the steel skeleton tube is kept stably positioned during the injection molding process to prevent skewing.
It effectively prevents steel-reinforced pipes from tilting during injection molding, improves the quality pass rate of molded products, shortens molding time, and increases molding efficiency.
Smart Images

Figure CN224170306U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding technology for steel-reinforced pipes, and more specifically to positioning equipment for injection molding of steel-reinforced pipes. Background Technology
[0002] Currently, some injection molding equipment typically requires placing the steel-reinforced composite pipe in a cavity before injecting molding fluid into the cavity to coat the exterior of the steel-reinforced pipe. In some injection molding equipment, the cavity is formed by fitting two separate cavities from two molding modules together. That is, when producing the finished pipe, the steel-reinforced pipe is placed in the cavity of one molding module, and the drive mechanism is activated to bring the two molding modules together to form the cavity.
[0003] However, the steel skeleton pipe placed in the cavity is easily affected by the slight vibration generated by the movement of the molding module driven by the drive device. This can cause the steel skeleton pipe to be slightly skewed in the cavity, which in turn makes it difficult for the pipe product to meet the quality standards after injection molding. Utility Model Content
[0004] To solve the above-mentioned technical problems and achieve at least one advantage of this utility model, this utility model provides a positioning device for injection molding of steel-reinforced pipes, wherein the positioning device for injection molding of steel-reinforced pipes includes:
[0005] Equipment body;
[0006] A material cavity forming assembly includes a first forming module, which is movably disposed on the equipment body and has a first forming groove for placing steel skeleton pipes.
[0007] At least two positioning components, each positioning component including a positioning element and a driving unit, wherein each positioning element is disposed at one port of the first forming channel, and the positioning element extends axially for a predetermined length to form a positioning portion, the positioning portion being movable in the first forming channel, the driving unit being disposed in the first forming module, and the driving unit being movably connected to the positioning element, and the driving unit being configured to drive the positioning portion of one of the positioning elements to extend into one port of the steel skeleton pipe.
[0008] According to one embodiment of the present invention, the material cavity forming assembly further includes a second forming module and at least one mold closing component, wherein the first forming module and the second forming module are arranged opposite to and spaced apart, the second forming module is provided with a second forming through groove at a position opposite to the first forming through groove, the mold closing component is installed on the device body, and the mold closing component is movably connected to the first forming module, thereby when the mold closing component drives the first forming module to approach the second forming module, the first forming through groove and the second forming through groove communicate to form a material cavity.
[0009] According to one embodiment of the present invention, the second molding module is movably connected to one of the mold closing components to move closer to and further away from the first molding module.
[0010] According to one embodiment of the present invention, the material cavity forming assembly further includes at least one guide rod, each guide rod being disposed to pass through both the first forming module and the second forming module, and each guide rod extending in a direction parallel to the moving direction of the first forming module, and the first forming module being movably connected to each guide rod.
[0011] According to one embodiment of the present invention, each of the fixed material parts extends radially outward to form a step, the cross-sectional diameter of the step is set to be larger than the cross-sectional diameter of the fixed material part, and the step is configured to cover one port of the material cavity when the first molding module and the second molding module form the material cavity.
[0012] According to one embodiment of the present invention, the material fixing component further forms a guide portion, the guide portion is located at the front end of the material fixing portion, and the cross-sectional diameter of the guide portion is set to be smaller than the cross-sectional diameter of the material fixing portion, and the guide portion is provided with an arc-shaped guide surface that convexes into the interior of the steel skeleton pipe.
[0013] According to one embodiment of the present invention, each positioning component further includes a connecting frame, which is connected to the side wall of the first molding module and located at a predetermined position at the port of the first molding through slot. The connecting frame is configured to extend toward the port of the first molding through slot to form an active channel for the fixed part to move. The driving unit is connected to the connecting frame.
[0014] According to an embodiment of the present invention, the positioning device for injection molding of steel frame pipes further includes a material conveying component. The material conveying component includes a feeder, a material receiving container, a material conveying element, and a driving element. The feeder has a feeding chamber and a feeding channel communicating with the feeding chamber. The outlet of the feeding channel is provided to extend into the interior of the material receiving container to supply injection fluid into the interior of the material receiving container. The material receiving container is fixedly connected to the device body and has a storage chamber communicating with the feeding channel. The storage chamber is also communicating with the second molding channel. The material conveying element is driven and moved to be connected to the driving element, and the material conveying element is configured to convey the injection fluid flowing through the storage chamber to the second molding channel.
[0015] According to one embodiment of the present invention, the feeder is held above the feed container.
[0016] According to one embodiment of the present invention, the material conveying component further includes a support frame, the support frame being fixedly connected to the equipment body, and the feeder being fixedly connected to the support frame. Attached Figure Description
[0017] Figure 1 A perspective view of the positioning device for injection molding of steel frame pipes according to the present invention is shown.
[0018] Figure 2 The diagram shows a structural schematic of the positioning device for injection molding of steel frame pipes according to the present invention at one angle.
[0019] Figure 3 This diagram shows a structural schematic of the positioning device for injection molding of steel-reinforced tubing as described in this invention from another angle.
[0020] Figure 4 A cross-sectional view of the positioning device for injection molding of steel-reinforced tubing according to the present invention is shown.
[0021] Figure 5 for Figure 2 The diagram shows a partial enlarged view of the positioning equipment used for injection molding of steel-reinforced tubing. Detailed Implementation
[0022] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.
[0023] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.
[0024] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0025] refer to Figures 1 to 5 The positioning device for injection molding of steel frame pipes according to a preferred embodiment of the present invention will be described in detail below. The positioning device for injection molding of steel frame pipes includes a device body 10, a material cavity forming component 20 and at least two positioning components 30.
[0026] Specifically, the material cavity molding assembly 20 includes a first molding module 21, a second molding module 22, and at least one mold clamping member 23. The first molding module 21 and the second molding module 22 are arranged opposite to each other and spaced apart. The first molding module 21 has a first molding channel 2101 for placing a steel skeleton pipe 90. The second molding module 22 has a second molding channel 2201 located opposite to the first molding channel 2101. The mold clamping member 23 is installed on the equipment body 10 and is movably connected to the first molding module 21. When the mold clamping member 23 drives the first molding module 21 closer to the second molding module 22, the first molding channel 2101 and the second molding channel 2201 communicate to form a material cavity for the steel skeleton pipe 90 to complete the injection molding operation.
[0027] It is understood that, before the steel skeleton pipe 90 completes the injection molding operation, the positioning device for injection molding of the steel skeleton pipe 90 can activate the mold clamping member 23 to drive the first molding module 21 closer to and further away from the second molding module 22. Specifically, when the first molding module 21 is further away from the second molding module 22, the steel skeleton pipe 90 can be placed in the first molding channel 2101. Then, the first molding module 21 is driven by the mold clamping member 23 to move closer to the second molding module 22 until the material cavity is formed. At this time, the steel skeleton pipe 90 is simultaneously located in the first molding channel 2101 and the second molding channel 2201, awaiting the next injection molding operation.
[0028] In one embodiment, the second molding module 22 is movably connected to one of the mold clamping components 23 to move closer to and further away from the first molding module 21. This further shortens the cavity formation time and improves molding efficiency when the positioning device for injection molding the steel skeleton pipe 90 needs to complete the injection molding operation. It should be noted that in this embodiment, the number of mold clamping components 23 can be set to two, and the first molding module 21 and the second molding module 22 are each connected to one mold clamping component 23.
[0029] Preferably, the material cavity forming assembly 20 further includes at least one guide rod 24, each guide rod 24 being disposed to pass through both the first forming module 21 and the second forming module 22, and each guide rod 24 extending in a direction parallel to the moving direction of the first forming module 21, and the first forming module 21 being movably connected to each guide rod 24, thereby restricting the movement of the first forming module 21 to prevent the first forming module 21 from deviating.
[0030] In a preferred embodiment, the second molding module 22 is movably connected to each of the guide rods 24.
[0031] Preferably, the mold closing component 23 is implemented as a mold closing mechanism with a cylinder.
[0032] Each of the positioning components 30 can be used to fix one end of the steel skeleton pipe 90 so that the steel skeleton pipe 90 as a whole is stably positioned within the first forming through groove 2101.
[0033] Specifically, each positioning component 30 includes a fixed material 31 and a driving unit 32. The fixed material 31 is disposed at one port of the first forming channel 2101, and the fixed material 31 extends axially for a predetermined length to form a fixed material portion 311, which is movable within the first forming channel 2101. The driving unit 32 is disposed in the first forming module 21, and is movably connected to the fixed material 31. The driving unit 32 is configured to drive the fixed material portion 311 of one of the fixed material 31 to extend into the port of the steel skeleton pipe 90 located in the first forming channel 2101, so that one end of the steel skeleton pipe 90 is fixed.
[0034] Those skilled in the art will understand that when the first forming channel 2101 of the first forming module 21 is filled with the steel skeleton pipe 90, the drive unit 32 is activated so that the material fixing part 311 of each material fixing part 31 gradually extends into one port of the steel skeleton pipe 90.
[0035] In this way, each of the fixed parts 311 extending into the steel skeleton tube 90 fixes each end of the steel skeleton tube 90, thereby fixing the entire steel skeleton tube 90 within the first molding channel 2101. Therefore, during the process of the mold closing component 23 driving the first molding module 21 to approach the second molding module 22, the steel skeleton tube 90 is unlikely to experience slight vibration within the first molding channel 2101, ensuring that the position of the steel skeleton tube 90 remains unchanged during the injection molding process, thereby reducing the probability of the steel skeleton tube 90 being defective after injection molding.
[0036] It is worth mentioning that when some of the steel skeleton tubes 90 with multiple through holes on their side walls are placed in the first forming channel 2101, the material fixing part 311 of the material fixing part 31 can extend into the interior of the steel skeleton tube 90 to close the channel into the interior of the steel skeleton tube 90. Thus, when the injection fluid is conveyed in the material cavity, the plastic fluid can be blocked on the outer wall of the steel skeleton tube 90 to surround the steel skeleton tube 90.
[0037] Preferably, each of the material fixing parts 31 extends radially outward to form a step 312, the cross-sectional diameter of the step 312 is set to be larger than the cross-sectional diameter of the material fixing part 311, and the step 312 is configured to cover one port of the material cavity when the first molding module 21 and the second molding module 22 form the material cavity.
[0038] It is understood that when the mold clamping component 23 drives the first molding module 21 to approach the second molding module 22 to form the material cavity, each of the fixed material components 31 moves with the first molding module 21, and the step 312 of each of the fixed material components 31 is located at one port of the material cavity to cover one port of the material cavity. Thus, when the injection fluid is delivered inside the material cavity, the injection fluid can only flow through the gap between the outer wall of the steel skeleton tube 90 and the inner wall forming the material cavity to wrap the steel skeleton tube 90, thereby completing the product molding operation.
[0039] Preferably, the material fixing part 31 further forms a guide part 313, the guide part 313 is located at the front end of the material fixing part 311, and the cross-sectional diameter of the guide part 313 is set to be smaller than the cross-sectional diameter of the material fixing part 311, and the guide part 313 is provided with an arc-shaped guide surface that convexes into the interior of the steel skeleton pipe 90.
[0040] It should be noted that when the driving unit 32 drives the fixing member 31 to extend the fixing part 311 into the interior of the steel skeleton pipe 90, the guide part 313 provided at the front end of the fixing part 311 guides the fixing part 311 to gradually extend into the interior of the steel skeleton pipe 90, thereby preventing the fixing part 311 from squeezing or pushing the edge of the steel skeleton pipe 90 during the extension process.
[0041] Preferably, each positioning component 30 further includes a connecting frame 33. Preferably, the connecting frame 33 is connected to the side wall of the first molding module 21 and located at a predetermined position at the port of the first molding channel 2101. The connecting frame 33 is configured to extend towards the port of the first molding channel 2101 to form a movable channel 3301 for the movement of the fixed part 31. The driving unit 32 is connected to the connecting frame 33.
[0042] Preferably, the drive unit 32 is implemented as a cylinder.
[0043] More preferably, the device body 10 is provided with a protective shell 11, which is provided to extend along the direction in which the mold clamping member 23 drives the first molding module 21 to move to form a protective cavity 1101. The mold clamping member 23 and at least part of the guide rod 24 of the material cavity molding assembly 20 are provided in the protective cavity 1101, thereby preventing foreign objects from falling onto the path of the mold clamping member 23 driving the first molding module 21 to move and affecting the movement of the first molding module 21.
[0044] Furthermore, the positioning device for injection molding of steel frame pipes also includes a material conveying component 40, which is used to convey injection fluid to the material cavity when the first molding module 21 and the second molding module 22 form the material cavity.
[0045] Specifically, the material conveying component 40 includes a feeder 41, a material container 42, a material conveying element 43, and a drive element 44. The feeder 41 has a feeding chamber 4101 and a feeding channel 4102 communicating with the feeding chamber 4101. The outlet of the feeding channel 4102 extends into the material container 42 to supply injection molding fluid into the material container 42. The material container 42 is fixedly connected to the equipment body 10 and has a storage chamber 4201 communicating with the feeding channel 4102. The storage chamber 4201 is also connected to the second molding channel 2201. The material conveying element 43 is movably connected to the drive element 44 and is configured to convey the injection molding fluid flowing through the storage chamber 4201 to the second molding channel 2201.
[0046] It is understood that the injection fluid located in the feeding chamber 4101 flows through the feeding channel 4102 and then enters the storage chamber 4201 of the material container 42. At this time, the driving member 44 is activated to drive the conveying member 43 to move in the storage chamber 4201 toward the direction of the second molding module 22, so that the injection fluid entering the storage chamber 4201 is conveyed by the conveying member 43 into the second molding channel 2201. Thus, after the first molding module 21 and the second molding module 22 form the material chamber, the injection fluid conveyed to the second molding channel 2201 can be used for the injection molding operation of the steel skeleton pipe 90.
[0047] Preferably, the material conveying member 43 is provided with a conveying section 431 at its front end. The cross-sectional diameter of the conveying section 431 is adapted to the inner diameter of the storage cavity 4201. When the driving member 44 drives the material conveying member 43 to move, the conveying section 431 is configured to conform to the inner wall of the storage cavity 4201 to convey the injection fluid flowing through the storage cavity 4201 to the second molding channel 2201, so that the material cavity is conveyed with injection fluid.
[0048] In one embodiment, the feeder 41 is held above the feed container 42, thereby allowing the injection fluid in the feed chamber 4101 to automatically flow from top to bottom through the feed channel 4102 and into the storage chamber 4201 under the action of gravity.
[0049] Preferably, the material conveying component 40 further includes a support frame 45, which is fixedly connected to the equipment body 10, and the feeder 41 is fixedly connected to the support frame 45, thereby fixing the placement of the feeder 41.
[0050] Preferably, the drive element 44 is implemented as a cylinder.
[0051] In addition, the positioning device for injection molding of steel frame pipes also includes a controller 50, which is connected to the device body 10, and the mold clamping component 23, the drive unit 32 and the drive component 44 are controllably connected to the controller 50.
[0052] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.
Claims
1. A positioning device for injection molding of steel-reinforced pipes, characterized in that, The positioning equipment for injection molding of steel-reinforced tubular materials includes: Equipment body; A material cavity forming assembly includes a first forming module, which is movably disposed on the equipment body and has a first forming groove for placing steel skeleton pipes. At least two positioning components, each positioning component including a positioning element and a driving unit, wherein each positioning element is disposed at one port of the first forming channel, and the positioning element extends axially for a predetermined length to form a positioning portion, the positioning portion being movable in the first forming channel, the driving unit being disposed in the first forming module, and the driving unit being movably connected to the positioning element, and the driving unit being configured to drive the positioning portion of one of the positioning elements to extend into one port of the steel skeleton pipe.
2. The positioning equipment for injection molding of steel-reinforced pipes according to claim 1, characterized in that, The material cavity forming assembly further includes a second forming module and at least one mold closing component, wherein the first forming module and the second forming module are arranged opposite to and spaced apart, the second forming module is provided with a second forming through groove at a position opposite to the first forming through groove, the mold closing component is installed on the device body, and the mold closing component is movably connected to the first forming module, so that when the mold closing component drives the first forming module to approach the second forming module, the first forming through groove and the second forming through groove communicate to form a material cavity.
3. The positioning equipment for injection molding of steel-reinforced pipes according to claim 2, characterized in that, The second molding module is movably connected to one of the mold closing components to move closer to and further away from the first molding module.
4. The positioning equipment for injection molding of steel-reinforced pipes according to claim 2, characterized in that, The material cavity forming assembly further includes at least one guide rod, each guide rod being disposed to pass through both the first forming module and the second forming module, and each guide rod extending in a direction parallel to the moving direction of the first forming module, and the first forming module being movably connected to each guide rod.
5. The positioning equipment for injection molding of steel-reinforced pipes according to claim 4, characterized in that, Each of the fixed parts extends radially outward to form a step, the cross-sectional diameter of the step is set to be larger than the cross-sectional diameter of the fixed part, and the step is configured to cover one port of the material cavity when the first molding module and the second molding module form the material cavity.
6. The positioning equipment for injection molding of steel-reinforced pipes according to claim 5, characterized in that, The material fixing component also forms a guide portion, which is located at the front end of the material fixing component. The cross-sectional diameter of the guide portion is set to be smaller than the cross-sectional diameter of the material fixing component, and the guide portion is provided with an arc-shaped guide surface that convexes into the interior of the steel skeleton pipe.
7. The positioning equipment for injection molding of steel-reinforced pipes according to claim 6, characterized in that, Each of the positioning components further includes a connecting frame, which is connected to the side wall of the first molding module and located at a predetermined position at the port of the first molding through slot. The connecting frame is configured to extend toward the port of the first molding through slot to form a movable channel for the fixed part to move. The drive unit is connected to the connecting frame.
8. The positioning equipment for injection molding of steel-reinforced pipes according to claim 2 or 7, characterized in that, The positioning device for injection molding of steel-reinforced pipes further includes a material conveying component, which includes a feeder, a material container, a conveying element, and a driving element. The feeder has a feeding chamber and a feeding channel communicating with the feeding chamber. The outlet of the feeding channel is provided to extend into the interior of the material container to supply injection fluid into the interior of the material container. The material container is fixedly connected to the device body and has a storage chamber communicating with the feeding channel. The storage chamber is also communicating with the second molding channel. The conveying element is driven and movably connected to the driving element and is configured to convey the injection fluid flowing through the storage chamber to the second molding channel.
9. The positioning equipment for injection molding of steel-reinforced pipes according to claim 8, characterized in that, The feeder is held above the feed container.
10. The positioning equipment for injection molding of steel-reinforced pipes according to claim 9, characterized in that, The material conveying component also includes a support frame, which is fixedly connected to the equipment body, and the feeder is fixedly connected to the support frame.