A support for an hdpe double-wall corrugated pipe forming die

Abstract

A support for a molding die for HDPE double-wall corrugated pipes includes a base frame with multiple pairs of uprights fixedly connected to its edges. A top beam pipe is fixedly connected between the middle pair of uprights. A back plate is fixedly connected between the top beam pipe and the base frame. Grooved plates are fixedly connected to both sides of the back plate, with a slot between the upper end of the grooved plate and the back plate. Multiple pressure blocks are provided on both sides of the top beam pipe, and the pressure blocks are connected to the top beam pipe. This invention addresses the problem that when a crane lifts the mold, the additional rotation angle required causes the mold to sway due to sudden changes in angle and center of gravity, leading to collisions between molds and surface damage.

Description

Technical Field

[0001] This utility model relates to a support for a molding die for HDPE double-wall corrugated pipes. Background Technology

[0002] The HDPE double-wall corrugated pipe forming die has a semi-circular structure. When replacing the die on the extruder, such as... Figure 6 As shown, the disassembled molds can only be arranged with the connecting ends facing down. Since the lifting holes of the mold are located on the curved surface of the mold, the connecting ends of the lifted mold are in a vertical state. When the crane lowers the mold, it is necessary to rotate the mold by an angle. In addition, when the mold is lifted again, the mold will also shake due to the sudden change in angle and center of gravity, causing the molds to collide or scrape against each other, resulting in damage to the mold surface. Utility Model Content

[0003] The purpose of this utility model is to provide a support for the forming mold of HDPE double-wall corrugated pipe, which solves the problem that when the crane lifts the mold, it is necessary to rotate it at an additional angle, which causes the mold to shake due to the sudden change in angle and center of gravity, resulting in collisions between molds and surface damage.

[0004] To solve the above problems, the technical solution of this utility model is as follows: A support for an HDPE double-wall corrugated pipe forming mold includes a base frame, multiple pairs of uprights fixedly connected to the edge of the base frame, a top beam pipe fixedly connected between the middle pair of uprights, a back plate fixedly connected between the top beam pipe and the base frame, and grooved plates fixedly connected to both sides of the back plate. A slot is formed between the upper end of the grooved plate and the back plate, the slot being used to accommodate the insertion plate of the HDPE double-wall corrugated pipe forming mold connection end. Multiple pressure blocks are provided on both sides of the top beam pipe, and the pressure blocks are connected to the top beam pipe.

[0005] Furthermore, multiple inserts are fixedly connected to the base frame, each insert corresponding to one of the uprights on the edge of the base frame.

[0006] Furthermore, a chamfer is provided on the top surface of the pole.

[0007] Furthermore, sliding groove holes are provided on both sides of the top beam tube, and multiple sliders are provided inside the top beam tube. The pressure block is connected to the sliders inside the top beam tube through a screw.

[0008] Furthermore, the cross-section of the slot plate is Z-shaped, and multiple rows of insertion holes are opened from top to bottom on the back plate. Multiple through holes corresponding to each row of insertion holes are opened at the lower end of the slot plate. After multiple screws pass through the insertion holes and through holes, the two slot plates are fixedly connected to the back plate by nuts.

[0009] Furthermore, a lifting lug is fixedly connected to one side of the middle upright.

[0010] Furthermore, a rubber strip is placed at the bottom of the card slot.

[0011] The beneficial effects of this utility model are as follows: 1. The vertical fixing structure of "slot + pressure block" allows the mold to be directly fixed on the bracket in a "vertical connection end" position, eliminating the need to rotate the mold to a horizontal position as in the existing method. This saves on the tedious angle adjustment steps and improves the efficiency of mold replacement. At the same time, the mold always maintains a vertical position when being lifted, avoiding the center of gravity shift caused by sudden changes in angle.

[0012] 2. In the vertically fixed state, the center of gravity of the mold is concentrated at the central axis of the bracket, and the insert plate is "two-way fixed" by the bottom limit of the slot and the upper end of the pressure block. There is no space for shaking during lifting or transportation, which completely solves the problem of surface damage and insert plate deformation caused by shaking of the mold in the existing method, and extends the service life of the mold. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a three-dimensional structural diagram of the present invention. Figure 2 This is a schematic diagram of the main structure of this utility model. Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point AA. Figure 4 This is a three-dimensional structural diagram of the present invention. Figure 5 This is a structural diagram of the present invention during implementation. Figure 6 This is a schematic diagram showing the existing mold placement.

[0014] In the diagram: 1. Insert sleeve; 2. Upright pole; 3. Pressure block; 4. Slide hole; 5. Top beam pipe; 6. Lifting lug; 7. Insert hole; 8. Back plate; 9. Slot plate; 10. Bottom frame; 11. Slider; 12. Mold; 13. Insert plate; 14. Lifting hole; 15. Rubber strip. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1 to 5As shown, a support for an HDPE double-wall corrugated pipe forming mold includes a base frame 10, three pairs of uprights 2 are fixedly connected to the edge of the base frame 10, a top beam pipe 5 is fixedly connected between the middle pair of uprights 2, a back plate 8 is fixedly connected between the top beam pipe 5 and the base frame 10, and grooved plates 9 are fixedly connected to both sides of the back plate 8. A slot is formed between the upper end of the grooved plate 9 and the back plate 8. The slot is used to accommodate the insert plate of the HDPE double-wall corrugated pipe forming mold connection end. Multiple pressure blocks 3 are provided on both sides of the top beam pipe 5, and the pressure blocks 3 are connected to the top beam pipe 5.

[0017] During implementation, when the mold 12 needs to be stored or hoisted, the crane first lifts the mold 12 through the hoisting hole 14 on the arc surface of the mold 12. At this time, the mold 12 is naturally in the "vertical downward" position (consistent with the force direction of the hoisting hole 14). The operator does not need to adjust the angle of the mold 12. He directly aligns the lower end of the insert plate 13 at the connecting end of the mold 12 with the slot formed by the slot plate 9 and the back plate 8, and slowly lowers it so that the lower end of the insert plate 13 is inserted into the slot (the slot plays a vertical limiting role for the insert plate 13). After the position of the insert plate 13 is stable, the pressure blocks 3 on both sides of the top beam pipe 5 move towards the insert plate 13 and press the upper end of the insert plate 13 to achieve "double-sided fixation" of the insert plate 13. Finally, the mold 12 is stably fixed on the support in a vertical position. It does not require rotating the angle as in the existing method, and it can also maintain the stability of the center of gravity during subsequent hoisting. When hoisting, the crane can hook the hoisting hole 14 of the mold 12 and lift it directly. The mold 12 has no room to shake because the insert plate 13 is fixed, thus completely avoiding collision.

[0018] Furthermore, multiple inserts 1 are fixedly connected to the base frame, with each insert 1 corresponding to a vertical post 2 on the edge of the base frame 10. When the workshop needs to store multiple sets of brackets with molds 12, a "stacking" method can be used to reduce the floor space occupied: lift the second set of brackets, align the opening of the insert 1 on the base frame 10 of the second set of brackets with the top of the vertical post 2 of the first set of brackets, and slowly lower the second set of brackets until the vertical post 2 is fully inserted into the insert 1; at this time, the insert 1 and the vertical post 2 are precisely positioned, the second set of brackets is stably erected above the first set of brackets, and there is no relative sliding between the two sets of brackets, which greatly saves floor space, and the overall stability of the stacked brackets is strong and not easy to tip over.

[0019] Furthermore, a chamfer is provided on the top surface of the upright 2. During the stacking process, the insert 1 of the upper support needs to be aligned with the upright 2 of the lower support and inserted. If the top surface of the upright 2 is a right angle, the opening of the insert 1 needs to be completely aligned with the top of the upright 2 to be inserted smoothly. During operation, the position needs to be adjusted repeatedly, which is inefficient and prone to damage to the edge of the upright 2 or the insert 1 due to alignment deviation. However, the chamfer on the top surface of the upright 2 plays a "guiding role" - when the opening of the insert 1 is close to the top of the upright 2, the inclined surface of the chamfer will guide the insert 1 to automatically adjust its position, so that the opening of the insert 1 slides along the chamfered inclined surface towards the axis of the upright 2. The upright 2 can be smoothly inserted without precise alignment, improving the efficiency of the stacking operation and avoiding damage to the components caused by hard contact.

[0020] Furthermore, elongated sliding grooves 4 are formed along the length of the two side walls of the top beam pipe 5; multiple sliding blocks 11 are provided inside the top beam pipe 5, which can slide along the length of the pipe; the pressure block 3 is located outside the top beam pipe 5 and is fixedly connected to the sliding blocks 11 by a screw passing through the sliding groove 4. Due to the differences in the width of the connecting end plate 13 or the position to be pressed by different specifications of HDPE double-wall corrugated pipe forming molds 12, the position of the pressure block 3 needs to be adjusted to ensure the pressing effect: when the mold 12 is changed, the screw of the pressure block 3 is loosened first. At this time, the sliding block 11 can slide freely along the length of the pipe inside the top beam pipe 5, driving the pressure block 3 to move synchronously along the sliding groove 4; when the pressure block 3 moves to the position "directly facing the upper end of the plate 13 to be pressed", the screw is tightened so that the sliding block 11 is tightly fitted with the inner wall of the top beam pipe 5 and cannot slide, and the position of the pressure block 3 is fixed; through this adjustment structure, the same bracket can be adapted to molds 12 with different widths of plate 13, improving the versatility of the bracket.

[0021] Furthermore, the cross-section of the slot plate 9 is Z-shaped (the Z-shaped structure allows the slot plate 9 and the back plate 8 to naturally form a slot for accommodating the insert plate 13); multiple rows of insertion holes 7 are evenly opened from top to bottom on the vertical plane of the back plate 8 (the number of insertion holes in each row is the same as the number of through holes on the slot plate 9); multiple through holes are opened at the lower end of the slot plate 9 (the horizontal section of the Z-shaped structure), and the positions of the through holes correspond to the positions of the insertion holes on the back plate 8; after the screws pass through the insertion holes of the back plate 8 and the through holes of the slot plate 9, the slot plate 9 can be fixed on the back plate 8 by tightening the nuts. The HDPE double-wall corrugated pipe forming molds 12 of different heights have different lengths of connecting end insert plates 13. The height of the slot needs to be adjusted to ensure that the lower end of the insert plate 13 can be stably inserted into the slot: when the height of the mold 12 increases (the insert plate 13 is longer), the position of the slot needs to be adjusted upward - first unscrew the nuts and screws fixing the slot plate 9, move the slot plate 9 upward, so that the through hole on the slot plate 9 is aligned with the upper row of insert holes on the back plate 8, then use screws to pass through the insert hole and the through hole, and screw on the nuts to fix the slot plate 9; conversely, when the height of the mold 12 decreases (the insert plate 13 is shorter), simply align the through hole of the slot plate 9 with the lower insert hole on the back plate 8 to fix it; through the design of multiple rows of insert holes, the height of the slot can be flexibly adjusted to ensure that insert plates 13 of different lengths can be stably fixed by "the lower end is inserted into the slot and the upper end is pressed by the pressure block 3".

[0022] Furthermore, on one side of a pair of uprights 2 in the middle of the support (i.e., the uprights 2 connecting the top beam pipe 5), lifting lugs 6 are symmetrically fixed. When the support with the mold 12 needs to be lifted as a whole (such as transferring the support from the storage area to the extruder), there is no need to find a temporary lifting point. The crane hook can be directly hooked onto the lifting lugs 6 on the middle uprights 2. Since the lifting lugs 6 are fixed at the central axis of the support (the middle uprights 2 are the center of gravity of the support), the support is balanced during lifting and will not tilt or overturn. At the same time, the lifting lugs 6 are a special lifting structure with strong load-bearing capacity, avoiding component deformation caused by directly lifting the top beam pipe 5 or the uprights 2, and ensuring the safety and stability of the lifting process.

[0023] Furthermore, a rubber strip 15 is placed at the bottom of the slot. When the lower end of the insert plate 13 of the mold 12 is inserted into the slot, the insert plate 13 will come into contact with the bottom of the slot. If it is a hard contact (metal insert plate 13 and metal slot plate 9), it will generate a large impact force. Long-term use will easily lead to wear and deformation of the lower edge of the insert plate 13, or dents at the bottom of the slot. The rubber strip 15 at the bottom of the slot has good elasticity, which can buffer the impact force when the insert plate 13 is inserted, turning the hard contact into an elastic contact, and avoiding direct wear between the insert plate 13 and the slot plate 9. At the same time, the friction of the surface of the rubber strip 15 is large, which can increase the tightness of the fit between the insert plate 13 and the slot, further preventing the insert plate 13 from shaking in the slot and improving the fixation stability.

[0024] The embodiments described in this specification are merely examples of implementations of the inventive concept. The scope of protection of this utility model should not be considered as limited to the specific forms described in the embodiments. The scope of protection of this utility model also extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A support for a forming mold of HDPE double-wall corrugated pipe, characterized in that: The device includes a base frame, with multiple pairs of uprights fixedly connected to the edge of the base frame. A top beam tube is fixedly connected between the middle pair of uprights. A back plate is fixedly connected between the top beam tube and the base frame. Grooved plates are fixedly connected to both sides of the back plate. A slot is formed between the upper end of the grooved plate and the back plate. The slot is used to accommodate the insert plate of the HDPE double-wall corrugated pipe forming mold connection end. Multiple pressure blocks are provided on both sides of the top beam tube, and the pressure blocks are connected to the top beam tube.

2. The support for a forming mold of HDPE double-wall corrugated pipe according to claim 1, characterized in that: Multiple inserts are fixedly connected to the base frame, and each insert corresponds to one of the uprights on the edge of the base frame.

3. The support for a forming mold of HDPE double-wall corrugated pipe according to claim 2, characterized in that: The top surface of the pole is chamfered.

4. A support for a forming mold of HDPE double-wall corrugated pipe according to any one of claims 1 to 3, characterized in that: The top beam tube has sliding groove holes on both sides, and multiple sliders are installed inside the top beam tube. The pressure block is connected to the sliders inside the top beam tube through a screw.

5. A support for a forming mold of HDPE double-wall corrugated pipe according to any one of claims 1 to 3, characterized in that: The slot plate has a Z-shaped cross-section. Multiple rows of insertion holes are opened on the back plate from top to bottom. Multiple through holes corresponding to each row of insertion holes are opened at the bottom of the slot plate. After multiple screws pass through the insertion holes and through holes, the two slot plates are fixedly connected to the back plate by nuts.

6. A support for a forming mold of HDPE double-wall corrugated pipe according to any one of claims 1 to 3, characterized in that: A lifting lug is fixedly connected to one side of the middle upright.

7. A support for a forming mold of HDPE double-wall corrugated pipe according to any one of claims 1 to 3, characterized in that: A rubber strip is placed at the bottom of the card slot.

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