XPS plate extrusion limiting device

Abstract

The utility model provides an XPS plate extrusion limiting device which comprises a mounting plate arranged on a die, a guide seat is arranged on the mounting plate and provided with a guide groove, a variable-diameter block is arranged in the guide groove, a driving assembly is arranged on the mounting plate, movable blocks are arranged on the two opposite sides of the guide seat respectively, and the movable blocks are arranged on the guide seat. Driving rods are arranged on the faces, close to the guide seats, of the movable blocks, guide holes are formed in the guide seats, the driving rods penetrate through the guide holes and abut against the variable-diameter blocks, springs are further arranged on the mounting plate, and the driving assemblies drive the movable blocks to be close to or away from the guide seats when driving the variable-diameter blocks to move in the guide grooves; the movable block is further provided with check blocks, the two check blocks are located on the two opposite sides of the discharging port of the mold respectively, one end of the two opposite ends of each check block is attached to the mold, and the other end of each check block extends in the direction away from the mold. The technical problem that excessive materials need to be cut due to the fact that the width and the edge shape of the XPS plate are not easy to control when the XPS plate is formed is solved, and the technical effects of reducing material waste and reducing production cost are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of XPS board production, in particular to an XPS board extrusion limiting device. Background Art

[0002] Extruded polystyrene foam board (XPS board) is a rigid foam plastic board made of polystyrene resin supplemented with polymers, which is injected with a catalyst while heating and mixing, and then extruded to produce continuous closed-cell foaming. It is an environmentally friendly thermal insulation material with excellent properties such as high compressive resistance, low water absorption, moisture resistance, airtightness, light weight, corrosion resistance, and low thermal conductivity. It is widely used in dry wall insulation, flat concrete roofs, and steel structure roof insulation.

[0003] The Chinese invention patent with the publication number of CN108582726B discloses a foam board extrusion production line, comprising a twin-screw extruder, a single-screw extruder, a whole platform, an embossing platform, a trimming saw and a double-cutting saw which are arranged in sequence. A material rack is arranged between the embossing platform and the trimming saw. A mold for forming extruded polyvinyl chloride is arranged on the output end of the single-screw extruder. The double-cutting saw comprises a frame, a conveyor belt and a cutting device are arranged on the frame, and the cutting device comprises connecting rods arranged on both sides of the frame in a conveying direction, a rotating shaft is spanned and rotatably connected in the connecting rods on both sides, a fixed rod is arranged on the circumferential position of the rotating shaft, a telescopic rod is sleeved on the end of the fixed rod away from the rotating shaft, a first cutter is arranged on the end of the telescopic rod away from the fixed rod, a first spring is arranged between the fixed rod and the first cutter, the first spring is located inside the telescopic rod, a slide groove is arranged on the connecting rod, the slide groove comprises a first horizontal section, an arc section and a second horizontal section, a slider sliding in the slide groove is arranged on the first cutter, the slider slides in the slide groove and drives the first cutter to move toward the foam board against the elastic force of the first spring to complete the cutting. The foamed board extrusion production line is provided with a cutting device to complete the continuous cutting of the foamed board, thereby improving the production efficiency of the entire production line.

[0004] During the production process of the foam board extrusion production line disclosed in the above-mentioned invention patent, the polystyrene melt expands to the surroundings after being extruded from the mold, resulting in that the width and edge shape of the XPS board are difficult to control when it is formed. Subsequently, a portion of the edge of the XPS board needs to be cut off to meet the requirements for the width size and shape of the XPS board. However, if too much edge is cut off, it will cause waste of materials and increase production costs. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an XPS board extrusion limiting device, which solves the problem in the prior art that the width and edge shape of the XPS board during molding are difficult to control, resulting in the need to cut too much material.

[0006] According to an embodiment of the utility model, an XPS board extrusion limiting device comprises a mounting plate arranged on a mold, a guide seat is provided on the mounting plate and the guide seat has a guide groove, a movable reducing block is provided in the guide groove and a driving assembly connected to the reducing block in transmission is provided on the mounting plate, movable blocks are provided on opposite sides of the guide seat respectively and the movable block is movably arranged on the mounting plate, a driving rod is provided on one side of the movable block close to the guide seat respectively, a guide hole connected to the guide groove is provided on the guide seat and the driving rod passes through the guide hole and abuts against the reducing block, a spring abutting against the movable block and driving the driving rod to maintain abutment against the reducing block is also provided on the mounting plate, and the driving assembly drives the reducing block to move in the guide groove, driving the movable block to approach or move away from the guide seat; blocks are also provided on the movable block respectively, and the two blocks are respectively located on opposite sides of the discharge port of the mold, and one of the opposite ends of the block is in contact with the mold and the other end extends in a direction away from the mold.

[0007] Furthermore, the driving assembly includes a cylinder and a telescopic rod arranged at the output end of the cylinder, one end of the telescopic rod away from the cylinder is fixedly connected to the variable block and the telescopic direction of the telescopic rod is consistent with the moving direction of the variable block.

[0008] Furthermore, a mounting frame is also provided on the mounting plate, the mounting frame is spaced apart from the guide seat and the cylinder is fixedly arranged on the mounting frame.

[0009] Furthermore, guide rails are respectively provided on opposite sides of the guide seat, the guide rails are fixedly arranged on the mounting plate and the length direction of the guide rails is consistent with the moving direction of the movable block, and the movable block and the guide rails are matched one by one.

[0010] Furthermore, the guide rails are respectively provided with limit rods, the length direction of the limit rods is consistent with the moving direction of the movable block, and the movable block is provided with limit holes that match the limit rods.

[0011] Furthermore, the spring is sleeved on the limiting rod, and two opposite ends of the spring in the expansion and contraction direction are respectively in contact with the movable block and the guide rail.

[0012] Furthermore, the movable blocks are respectively provided with mounting blocks, the stop blocks are provided with mounting grooves for accommodating the mounting blocks, and the mounting blocks are fitted with inner walls of the mounting grooves.

[0013] Furthermore, a threaded rod is provided inside the stop block, a mounting hole for the threaded rod to pass through is provided on the mounting block, a locking nut matching with the threaded rod is provided on the threaded rod, and the locking nut presses the mounting block onto the stop block.

[0014] Furthermore, the block includes a mounting portion, a guide portion and an extension portion which are connected in sequence, the mounting groove is arranged on the mounting portion, the guide portion is inclined at one end away from the mounting portion away from the discharge port of the mold, and the extension portion is arranged parallel to the mounting portion.

[0015] Furthermore, baffles are respectively provided on the movable blocks, and the baffles are located on the sides of the two baffles that are away from each other and the baffles are respectively fitted with the molds.

[0016] Compared with the prior art, the utility model has the following beneficial effects: by adopting a driving component to drive the reducing block to move in the guide groove, the reducing block drives the two movable blocks on both sides of the guide seat to approach or move away from the guide seat at the same time when moving, so as to adjust the spacing between the blocks respectively arranged on the two movable blocks, so that the spacing between the two blocks is adapted to the width dimension of the XPS board after being extruded and shaped from the mold. At this time, after the polystyrene melt is extruded from the mold, the two blocks located on the opposite sides of the discharge port of the mold respectively block the expansion of the polystyrene melt, so that the width dimension of the polystyrene melt after being cooled and formed into the XPS board is maintained within a certain range, and the edge of the formed XPS board is kept flat by the two blocks fitting with the edge of the polystyrene melt, so as to avoid the free expansion of the polystyrene melt after being extruded from the mold, thereby reducing the part of the edge of the subsequent XPS board that needs to be cut. It solves the technical problem that the width and edge shape of the XPS board are difficult to control when the XPS board is formed, resulting in the need to cut too much material, and produces the technical effect of reducing material waste and reducing production costs, and the spacing between the two blocks can be adjusted according to production needs, with strong versatility and simple and convenient adjustment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of an XPS board extrusion limiting device according to an embodiment of the utility model when it is installed on a mold;

[0018] Figure 2 This is a structural schematic diagram of an XPS board extrusion limiting device according to an embodiment of the utility model;

[0019] Figure 3 A cross-sectional view of an XPS board extrusion limiting device according to an embodiment of the utility model;

[0020] Figure 4 This is an exploded view of part of the structure of the XPS board extrusion limiting device according to one embodiment of the utility model.

[0021] In the above drawings: 1. mounting plate; 11. mounting frame; 2. guide seat; 21. guide groove; 22. reducing block; 3. driving assembly; 31. cylinder; 32. telescopic rod; 4. movable block; 41. driving rod; 42. limiting hole; 43. mounting block; 44. mounting hole; 45. baffle; 5. spring; 6. block; 61. mounting groove; 62. threaded rod; 63. locking nut; 64. mounting part; 65. guide part; 66. extension part; 7. guide rail; 71. limiting rod; 100. mold; 101. discharge port. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figures 1 to 4 As shown, an embodiment of the utility model proposes an XPS board extrusion limit device, which is installed on the mold 100 of the extruder, and is used to limit the free expansion of the polystyrene melt extruded from the discharge port 101 of the mold 100, so that after the polystyrene melt is cooled and formed into the XPS board, the width of the XPS board is maintained within an appropriate range and the edge of the XPS board is smooth.

[0024] Please refer to Figure 1 and Figure 2The XPS board extrusion limiting device comprises a mounting plate 1, which is arranged on a die 100 of an extruder, a guide seat 2 having a guide groove 21 is provided on the mounting plate 1, a movable diameter reducing block 22 is provided in the guide groove 21, and a driving assembly 3 which is transmission-connected with the diameter reducing block 22 is provided on the mounting plate 1, movable blocks 4 are provided on opposite sides of the guide seat 2, and the movable blocks 4 are movably arranged on the mounting plate 1, and a driving rod 41 is provided on a side of the movable block 4 close to the guide seat 2, a guide hole for the driving rod 41 to pass through is provided on the guide seat 2, and the guide hole is connected to the guide groove 21, one end of the driving rod 41 passes through the guide hole, extends into the guide groove 21 and abuts against the diameter reducing block 22, and the mounting plate 1 is also provided with a A spring 5 abutting against the movable block 4 drives the movable block 4 to move toward the guide seat 2 so that the driving rod 41 remains in abutment with the reducing block 22, and when the driving assembly 3 drives the reducing block 22 to move in the guide groove 21, the reducing block 22 drives the movable block 4 to move toward or away from the guide seat 2; blocks 6 are also provided on the movable block 4, two of the blocks 6 are located at opposite sides of the discharge port 101 of the mold 100, and one of the opposite ends of the block 6 is in contact with the mold 100, and the other end extends in the direction away from the mold 100, so that a space is enclosed between the two blocks 6 for the polystyrene melt extruded from the discharge port 101 of the mold 100 to move, and the block 6 prevents the polystyrene melt from freely expanding to the surroundings.

[0025] Specifically, the operation steps of using the XPS board extrusion limiting device provided in this embodiment to limit and shape the extruded XPS board in the mold 100 are as follows: first, the mounting plate 1 is fixed to the mold 100 and the two stoppers 6 are maintained on both sides of the discharge port 101 of the mold 100, and the reducing block 22 is driven by the driving component 3 to move in the guide groove 21. As the reducing block 22 moves, the two movable blocks 4 simultaneously approach or move away from the guide seat 2, thereby driving the two stoppers 6 to move to adjust the distance between the two stoppers 6, so that the distance between the two stoppers 6 is consistent with the distance from the mold 10. 0, and then the extruder is started to extrude the polystyrene melt from the discharge port 101 of the mold 100. At this time, after the polystyrene melt is extruded from the mold 100, the two stoppers 6 located on the opposite sides of the discharge port 101 respectively block the expansion of the polystyrene melt, so that the width of the polystyrene melt is kept within a certain range after the polystyrene melt is cooled and formed into the XPS board, and the edge of the formed XPS board is kept flat by the two stoppers 6 and the edge of the polystyrene melt, so as to avoid the free expansion of the polystyrene melt after being extruded from the mold 100, thereby reducing the part of the XPS board edge that needs to be cut later. The XPS board extrusion limit device provided in this embodiment can effectively reduce the material waste generated by the subsequent cutting of the XPS board, which is conducive to reducing the production cost, and the spacing between the two stoppers 6 can be adjusted according to the width of the XPS board produced, with strong versatility and simple and convenient adjustment operation.

[0026] like Figure 2 As shown, in this embodiment, the driving assembly 3 includes a cylinder 31 and a telescopic rod 32 arranged at the output end of the cylinder 31, and the end of the telescopic rod 32 away from the cylinder 31 is fixedly connected to the reducing block 22, and the telescopic direction of the telescopic rod 32 is consistent with the moving direction of the reducing block 22. The telescopic rod 32 is driven by the cylinder 31 to extend out of the cylinder 31 or retract into the cylinder 31, and the reducing block 22 can be driven to move by the movement of the telescopic rod 32, so as to adjust the distance between the two stoppers 6, and the moving distance of the reducing block 22 can be adjusted by controlling the stroke of the telescopic rod 32, so as to ensure that the stopper 6 is adjusted in place, which is convenient for the operation of the XPS board extrusion limit device.

[0027] In detail, the mounting plate 1 is further provided with a mounting frame 11, the mounting frame 11 is spaced apart from the guide seat 2 and the cylinder 31 is fixedly arranged on the mounting frame 11. The mounting frame 11 is arranged on the mounting plate 1 for the cylinder 31 to be installed, so that the position of the cylinder 31 on the mounting plate 1 remains stable, and the shaking of the cylinder 31 during the operation process causes the reducing block 22 to deviate from the preset direction.

[0028] Please combine Figure 2 and Figure 3 , guide rails 7 are respectively provided on opposite sides of the guide seat 2, the guide rails 7 are fixedly arranged on the mounting plate 1 and the length direction of the guide rails 7 is consistent with the moving direction of the movable block 4, and the movable block 4 is matched with the guide rails 7 in a one-to-one correspondence. The guide rails 7 are used to limit the moving direction of the movable block 4 on the mounting plate 1, so that the movable block 4 moves along a preset direction and approaches or moves away from the guide seat 2 under the drive of the reducer 22, avoiding unexpected deviation of the movable block 4 when moving, which is beneficial to improving the structural stability of the XPS board extrusion limit device.

[0029] Specifically, the guide rails 7 are respectively provided with limit rods 71, the length direction of the limit rods 71 ​​is consistent with the moving direction of the movable block 4, and the movable block 4 is provided with a limit hole 42 that matches the limit rod 71. The limit rod 71 cooperates with the limit hole 42 to keep the movable block 4 on the guide rail 7, preventing the movable block 4 from detaching from the guide rail 7 during the movement, and ensuring the overall structural stability of the XPS board extrusion limit device.

[0030] like Figure 3 As shown, the spring 5 is sleeved on the limit rod 71, and the two opposite ends of the spring 5 in the extension direction are respectively in contact with the movable block 4 and the guide rail 7. The spring 5 is sleeved on the limit rod 71 so that the two ends of the spring 5 are kept in contact with the movable block 4 and the guide rail 7, ensuring that the elastic force provided by the spring 5 acts stably on the movable block 4, preventing the spring 5 from being separated from the movable block 4.

[0031] like Figure 2 and Figure 4 As shown, the movable block 4 is also provided with a mounting block 43, and the stopper 6 is provided with a mounting groove 61 for accommodating the mounting block 43, and the mounting block 43 is in contact with the inner wall of the mounting groove 61. The stopper 6 is positioned by the cooperation between the mounting block 43 and the mounting groove 61, so that the stopper 6 can be installed on the movable block 4, and the stopper 6 can be conveniently arranged on both sides of the discharge port 101 of the mold 100, so as to facilitate the installation of the XPS board extrusion limit device.

[0032] In detail, the stopper 6 is provided with a threaded rod 62, the mounting block 43 is provided with a mounting hole 44 for the threaded rod 62 to pass through, the threaded rod 62 is provided with a locking nut 63 matched with the threaded rod 62, and the locking nut 63 presses the mounting block 43 onto the stopper 6. The stopper 6 is mounted on the movable block 4 by the cooperation of the locking nut 63 and the threaded rod 62, so as to ensure a reliable connection between the stopper 6 and the movable block 4, and prevent the stopper 6 from shaking under the extrusion of the polystyrene melt during the extrusion of the polystyrene melt by the mold 100, and the stopper 6 is detachably connected to the movable block 4, so as to facilitate the installation of the stopper 6 of a suitable height according to the thickness of the produced XPS board, thereby improving the versatility of the XPS board extrusion limit device and meeting the production requirements of products with different thicknesses.

[0033] Please refer to Figure 4 The stopper 6 comprises a mounting portion 64, a guide portion 65 and an extension portion 66 which are connected in sequence, the mounting groove 61 is arranged on the mounting portion 64, the end of the guide portion 65 away from the mounting portion 64 is inclined in a direction away from the discharge port 101 of the mold 100, and the extension portion 66 is arranged in parallel with the mounting portion 64. The stopper 6 is composed of the mounting portion 64, the guide portion 65 and the extension portion 66 which are connected in sequence, wherein the mounting portion 64 is used to connect the movable block 4, the guide portion 65 is inclined to provide space for the polystyrene melt to expand after being extruded, and prevent the thickness of the formed XPS board from being uneven due to the expansion obstruction during the extrusion of the polystyrene melt, and the extension portion 66 arranged at the end of the guide portion 65 away from the mounting portion 64 is used to guide the movement of the XPS board and prevent the XPS board from deviating from the conveying direction.

[0034] like Figure 1 and Figure 4 As shown, the movable block 4 is also provided with baffles 45, which are located on the side of the two baffles 6 away from each other and are respectively fitted with the mold 100. The baffles 45 fitted with the mold 100 are used to prevent the polystyrene melt extruded from the discharge port 101 from passing through the gap between the movable block 4 and the mold 100, ensuring that the polystyrene melt extruded from the mold 100 all passes through the space between the two baffles 6, and preventing part of the polystyrene melt from leaking and causing material waste.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An XPS board extrusion limiting device, characterized in that: It includes a mounting plate arranged on the mold, a guide seat is provided on the mounting plate, and the guide seat has a guide groove, a movable reducing block is provided in the guide groove, and a driving assembly connected to the reducing block in transmission is provided on the mounting plate, movable blocks are respectively provided on the opposite sides of the guide seat, and the movable blocks are movably arranged on the mounting plate, and a driving rod is respectively provided on a side of the movable block close to the guide seat, a guide hole connected to the guide groove is provided on the guide seat, and the driving rod passes through the guide hole and abuts against the reducing block, and a spring abuts against the movable block and drives the driving rod to keep abutting against the reducing block is also provided on the mounting plate, and the driving assembly drives the reducing block to move in the guide groove, driving the movable block to approach or move away from the guide seat; stoppers are also respectively provided on the movable block, and the two stoppers are respectively located on the opposite sides of the discharge port of the mold, and one end of the opposite ends of the stopper is in contact with the mold, and the other end extends in a direction away from the mold.

2. An XPS board extrusion limiting device as claimed in claim 1, characterized in that: The driving assembly includes a cylinder and a telescopic rod arranged at the output end of the cylinder, one end of the telescopic rod away from the cylinder is fixedly connected to the variable block, and the telescopic direction of the telescopic rod is consistent with the moving direction of the variable block.

3. An XPS board extrusion limiting device as claimed in claim 2, characterized in that: The mounting plate is also provided with a mounting frame, the mounting frame is spaced apart from the guide seat and the cylinder is fixedly arranged on the mounting frame.

4. An XPS board extrusion limiting device as claimed in claim 1, characterized in that: The guide seat is provided with guide rails on opposite sides respectively. The guide rails are fixedly arranged on the mounting plate and the length direction of the guide rails is consistent with the moving direction of the movable block. The movable block is matched with the guide rails in a one-to-one correspondence.

5. An XPS board extrusion limiting device as claimed in claim 4, characterized in that: The guide rails are respectively provided with limit rods, the length direction of the limit rods is consistent with the moving direction of the movable block, and the movable block is provided with limit holes matched with the limit rods.

6. An XPS board extrusion limiting device as claimed in claim 5, characterized in that: The spring is sleeved on the limiting rod, and two opposite ends of the spring in the expansion and contraction direction are respectively in contact with the movable block and the guide rail.

7. An XPS board extrusion limiting device as claimed in claim 1, characterized in that: The movable blocks are respectively provided with mounting blocks, the stop blocks are provided with mounting grooves for accommodating the mounting blocks, and the mounting blocks are fitted with the inner walls of the mounting grooves.

8. An XPS board extrusion limiting device as claimed in claim 7, characterized in that: The stopper is provided with a threaded rod, the mounting block is provided with a mounting hole for the threaded rod to pass through, the threaded rod is provided with a locking nut matched with the threaded rod, and the locking nut presses the mounting block onto the stopper.

9. An XPS board extrusion limiting device as claimed in claim 7, characterized in that: The stopper includes a mounting portion, a guide portion and an extension portion which are connected in sequence, the mounting groove is arranged on the mounting portion, the guide portion is inclined at one end away from the mounting portion and away from the discharge port of the mold, and the extension portion is arranged parallel to the mounting portion.

10. An XPS board extrusion limiting device as claimed in claim 1, characterized in that: Baffles are also provided on the movable blocks respectively. The baffles are located on the sides of the two baffles that are away from each other and the baffles are respectively fitted with the molds.

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