Plastic foam shaping equipment

Abstract

The invention relates to the technical field of plastic foam processing, and discloses plastic foam shaping equipment, comprising a shaping box and an upper plate, wherein the shaping box and the upper plate are combined to form a cavity for shaping plastic foam, the upper surface of the upper plate is fixedly mounted with the upper box, a feed box is arranged inside the upper box, a plurality of feed pipes are arranged at the bottom of the feed box; the upper ends of the feed pipes extend to the interior of the feed box; the plastic foam shaping equipment, by arranging a feed box and a vibration box in the upper box of the upper plate, and using a vibration rod to cooperate with the feed pipe and a vibration head, so that during the vibration process, the vibration rod cooperates with the feed pipe to transport and fill plastic foam particles into the shaping box, and cooperates with the driving vibration head to vibrate, and utilizes the vibration of the vibration head to make the plastic foam particles filled into the shaping box more densely filled, and assists the plastic foam particles to be spread in the shaping box, thereby improving the quality of plastic foam molding and reducing the situation of internal cavities of the plastic foam.

Description

Technical Field

[0001] The invention relates to the technical field of plastic foam processing, in particular to plastic foam shaping equipment. Background Art

[0002] The production process of plastic foam is to first foam the plastic particles to form plastic foam particles, then fill the plastic foam particles into the shaping equipment, and process the plastic foam particles into plastic foam with a certain shape by heat-shaping them.

[0003] The traditional plastic foam shaping equipment is that the staff directly pours the bagged plastic foam particles into the shaping equipment. The filling method of the plastic foam particles may cause cavities in the plastic foam particle filling layer in the shaping equipment. The plastic foam particles are not filled densely, which will affect the quality of plastic foam molding. When the plastic foam is subsequently cut, it is more likely to affect the stability of the plastic foam structure. In addition, the traditional filling method of plastic foam particles easily causes the plastic foam particles to scatter on the outside of the shaping equipment, resulting in waste of plastic foam particles. Summary of the invention

[0004] In order to solve the problem that the above traditional filling method of plastic foam particles will cause cavities in the filling layer of plastic foam particles, the plastic foam particles are not densely filled, which will affect the quality of plastic foam molding, and the traditional foam filling method is easy to cause the plastic foam particles to scatter outside the shaping device, resulting in waste of plastic foam particles. The present invention is implemented through the following technical scheme: the plastic foam shaping device includes a shaping box and an upper plate, the shaping box and the upper plate are combined to form a cavity for shaping plastic foam, the upper surface of the upper plate is fixedly installed with the upper box, the interior of the upper box is provided with a feed box, the upper surface of the feed box is provided with a feed pipe, the top surface of the upper box is provided with a hydraulic rod, the hydraulic rod is connected to the hydraulic system, and the bottom of the feed box is provided with a plurality of feed pipes;

[0005] The upper end of the feed pipe extends to the interior of the feed box, a discharge port is provided on the side wall of the lower end of the feed pipe, and a vibration head is radially slidably mounted on the lower end of the feed pipe;

[0006] The foam particles are transported to the shaping box by using a plurality of the feeding pipes, and the foam particles are densely filled and spread flat in the shaping box by using the vibration of the vibration head.

[0007] Furthermore, the feed pipe extends to the side wall of the tube surface inside the feed box and is provided with a feed port;

[0008] A support ring is fixedly installed above the feed port inside the feed pipe, a drive ring is rotatably installed inside the support ring, a screw is fixedly installed on the lower surface of the drive ring, and the screw is driven to rotate synchronously by the rotation of the drive ring;

[0009] A vibration rod is axially arranged inside the driving ring, the lower end of which can extend to the inside of the vibration head, and the vibration rod can vibrate along its axial direction in the feeding pipe;

[0010] The axial vibration of the vibration rod is utilized to drive the driving ring to rotate continuously, thereby driving the screw to rotate continuously and driving the vibration head to vibrate continuously in the radial direction.

[0011] Furthermore, the inner ring surface of the driving ring is provided with a wave-shaped guide groove, and the bottom surface of the guide groove is composed of a plurality of stepped inclined surfaces connected end to end;

[0012] A second guide post is radially slidably installed inside the vibration rod, a compression spring is provided between the second guide post and the vibration rod, the second guide post can elastically extend and slide inside the vibration rod, and the second guide post is located inside the guide groove.

[0013] Furthermore, the interior of the vibration head is a cavity, a vibration spring is provided between the inner wall of the cavity and the lower end surface of the feed pipe, a corrugated plate is provided inside the cavity, and the side surface of the corrugated plate is a corrugated surface;

[0014] A spherical top block is fixedly mounted on the side surface of the lower end of the vibration rod. When the vibration rod moves axially, the top block can contact the corrugated surface of the corrugated plate.

[0015] Furthermore, a plurality of corrugated plates are arranged in the cavity inside the vibration head, and the plurality of corrugated plates are sequentially distributed along the axis direction of the cavity, and an angle exists between two adjacent corrugated plates above and below, and at most one corrugated plate is arranged in the same plane passing through the axis of the cavity;

[0016] A plurality of top blocks are disposed at the lower end of the vibration rod, and the plurality of top blocks are sequentially distributed along the axial direction of the vibration rod, and the plurality of top blocks correspond to the plurality of corrugated plates one by one, respectively.

[0017] Furthermore, a vibration box is fixedly mounted on the upper surface of the feed box, a vibration plate is provided inside the vibration box, and the upper end of the vibration rod is fixedly mounted on the lower surface of the vibration plate;

[0018] An eccentric disk is rotatably installed inside the vibration box, and a circular eccentric groove is opened on the surface of the eccentric disk. A guide column 1 is fixedly provided on the side surface of the vibration plate, and the guide column 1 is located inside the eccentric groove.

[0019] Two groups of eccentric disks are arranged on the same side of the vibration plate, and a transmission shaft is arranged between the two groups of eccentric disks. The transmission shaft is driven to rotate by a motor installed inside the vibration box. Gear sets are installed at both ends of the transmission shaft. The gear sets are composed of two mutually meshing bevel gears. One of the bevel gears is coaxially fixedly connected with the eccentric disk. Eccentric disks are arranged on both sides of the vibration plate.

[0020] Furthermore, a material guide plate 1 and a material guide plate 2 are installed inside the feed box, the two material guide plates 1 form a group and are distributed in a V shape on both sides of the feed pipe, the material guide plate 2 is located between the two material guide plates 1 in the same group, the two material guide plates 2 form a group and are distributed in a V shape on both sides of the feed pipe and correspond to the feed port.

[0021] Furthermore, the shaping box is composed of an L-shaped box plate, a side plate and a front plate, and the lower side of the side plate is rotatably connected to the bottom plate of the box plate;

[0022] A connecting seat is slidably mounted on one side surface of the box plate close to the front plate, the connecting seat and the front plate are connected via a connecting slider, a shaft is rotatably mounted inside the connecting seat, the front plate is fixedly connected to the shaft, a motor device for driving the shaft to rotate is mounted at the bottom of the connecting seat, a hydraulic cylinder is fixedly mounted on the outer surface of the box plate, the hydraulic cylinder is connected to the hydraulic system, and the telescopic end of the hydraulic cylinder is fixedly connected to the connecting seat;

[0023] A connecting rod is fixedly installed on one side of the front plate away from the connecting seat, and a locking cylinder is fixedly installed on the outer surface of the side plate. After the side plate is matched with the box plate, when the front plate is rotated to a state perpendicular to the side plate, the connecting rod can be inserted into the locking cylinder when the hydraulic cylinder drives the front plate to move toward the box plate.

[0024] Furthermore, a T-shaped groove is provided inside the free end of the connecting rod;

[0025] The locking cylinder is internally sealed and slidably mounted with a locking piston, the outer surface of the locking piston is fixedly mounted with a matching block, the matching block is adapted to the T-shaped groove, a channel is provided at the center of the locking piston, an inner sealing rod is internally sealed and slidably mounted with the channel, a return spring is provided between the inner sealing rod and the inner wall of the channel, and a circular disk is provided at one end of the inner sealing rod extending to the inside of the locking piston cylinder body;

[0026] Two locking blocks are radially slidably installed inside the matching block, a V-shaped adjusting rod is arranged between the two locking blocks, the adjusting rod is composed of two rotatably connected connecting rods, and one end of the inner sealing rod is located inside the channel and is rotatably connected to the center of the adjusting rod.

[0027] Furthermore, the inner surfaces of the shaping box and the upper plate are both installed with heat-setting plates, and the surface of the heat-setting plate on the lower surface of the upper plate is provided with a plurality of through holes, which are adapted to the vibration head, and the heat-setting plates are combined with each other to form a shaping cavity for the plastic foam.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The plastic foam shaping device sets a feed box and a vibration box in the upper box of the upper plate, and uses a vibration rod to cooperate with a feed pipe and a vibration head, so that the vibration rod cooperates with the feed pipe to transport and fill the plastic foam particles into the shaping box during the vibration process, and cooperates with the driving vibration head to vibrate. The vibration of the vibration head is used to make the plastic foam particles filled into the shaping box more dense, and the plastic foam particles are assisted to be spread in the shaping box, thereby improving the quality of plastic foam molding and reducing the internal cavity of the plastic foam. At the same time, this filling method replaces manual filling and reduces the waste of plastic foam particles.

[0030] 2. The plastic foam shaping equipment, through the connection combination design of the connecting seat, the shaft rod and the hydraulic cylinder with the front plate, and the combination design of the locking piston, the inner sealing rod and the locking block inside the locking cylinder with the connecting rod and the T-slot, can make the front plate cooperate with the box plate and the side plate in a translational manner when it is perpendicular to the plate body of the box plate close to one side thereof, thereby improving the sealing effect of the shaping box combination and facilitating the rectangular cooperation of the heat-setting plate inside the shaping box. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a stereogram of the overall structure of the shaping device of the present invention;

[0032] Figure 2 It is a three-dimensional diagram of the molding box structure of the present invention;

[0033] Figure 3 It is a top view of the molding box structure of the present invention;

[0034] Figure 4 It is a schematic diagram of the combined structure of the connecting rod and the locking cylinder of the present invention;

[0035] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0036] Figure 6 It is a three-dimensional diagram of the upper plate and upper box structure of the present invention;

[0037] Figure 7 It is a three-dimensional diagram of the distribution structure of the feed box and the vibration box inside the upper box of the present invention;

[0038] Figure 8It is a stereoscopic diagram of the combined structure of the feed pipe, feed box and vibration box of the present invention;

[0039] Fig. 9 It is a three-dimensional diagram of the internal structure of the feed box of the present invention;

[0040] Fig.10 It is a stereoscopic diagram of the internal structure of the feed pipe and the vibration head of the present invention;

[0041] Fig.11 For the present invention Fig.10 A schematic diagram of the enlarged structure at B in the middle;

[0042] Fig.12 This is a schematic diagram of the distribution structure of the guide grooves inside the drive ring of the present invention;

[0043] Fig.13 A three-dimensional diagram of the internal structure of the vibration box of the present invention;

[0044] Fig.14 For the present invention Fig.13 Enlarged stereoscopic image of the structure at point C in the middle.

[0045] In the figure: 1, box plate; 2, side plate; 3, locking cylinder; 31, locking piston; 311, inner sealing rod; 312, adjusting rod; 313, locking block; 4, connecting seat; 41, connecting slide block; 5, front plate; 51, connecting rod; 511, T-slot; 6, hydraulic cylinder; 7, upper plate; 71, upper box; 8, feed box; 81, guide plate 1; 82, guide plate 2; 9, feed pipe; 91, feed port; 92, support ring; 93 , drive ring; 931, guide groove; 94, screw; 95, discharge port; 10, vibration head; 101, corrugated plate; 102, vibration spring; 11, feed pipe; 12, vibration box; 121, vibration plate; 1211, guide column one; 13, transmission shaft; 131, gear set; 14, eccentric disk; 141, eccentric groove; 15, vibration rod; 151, guide column two; 152, top block; 16, heat setting plate; 17, hydraulic rod. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The embodiment of this plastic foam shaping equipment is as follows: Embodiment 1:

[0048] See also Figure 1-Figure 14The plastic foam shaping equipment comprises a shaping box and an upper plate 7. The shaping box is composed of an L-shaped box plate 1, a side plate 2 and a front plate 5. The lower side of the side plate 2 is rotatably connected to the bottom plate of the box plate 1. The side plate 2 is driven to rotate by a hydraulic telescopic rod, thereby controlling the side plate 2 to cooperate with the box plate 1 or to separate from the box plate 1.

[0049] A connecting seat 4 is slidably installed on the surface of one side of the box plate 1 close to the front plate 5. The connecting seat 4 and the front plate 5 are connected by a connecting slider 41. A shaft rod is rotatably installed inside the connecting seat 4. The front plate 5 is fixedly connected to the shaft rod. A motor device for driving the shaft rod to rotate is installed at the bottom of the connecting seat 4. A hydraulic cylinder 6 is fixedly installed on the outer surface of the box plate 1. The hydraulic cylinder 6 is connected to the hydraulic system. The telescopic end of the hydraulic cylinder 6 is fixedly connected to the connecting seat 4. The position of the connecting seat 4 is adjusted by using the hydraulic cylinder 6.

[0050] A connecting rod 51 is fixedly installed on one side of the front plate 5 away from the connecting seat 4, and a locking cylinder 3 is fixedly installed on the outer surface of the side plate 2. After the side plate 2 is matched with the box plate 1, when the front plate 5 is rotated to a state perpendicular to the side plate 2, when the hydraulic cylinder 6 is used to drive the front plate 5 to move toward the direction of the box plate 1, the connecting rod 51 can be inserted into the locking cylinder 3.

[0051] A T-slot 511 is provided inside the free end of the connecting rod 51; a locking piston 31 is slidably installed in the inner sealing of the locking cylinder 3, a matching block is fixedly installed on the outer surface of the locking piston 31, the matching block is adapted to the T-slot 511, a channel is provided at the center of the locking piston 31, an inner sealing rod 311 is slidably installed in the inner sealing of the channel, a return spring is provided between the inner sealing rod 311 and the inner wall of the channel, a circular disk is provided at one end of the inner sealing rod 311 extending to the inside of the cylinder body of the locking piston 31, and the circular disk is designed to increase the adsorption force of the hydraulic oil in the inner cylinder body of the locking cylinder 3 on the inner sealing rod 311.

[0052] Two locking blocks 313 are radially slidably installed inside the matching block, and a V-shaped adjusting rod 312 is arranged between the two locking blocks 313. The adjusting rod 312 is composed of two rotatably connected connecting rods. One end of the inner sealing rod 311 located inside the channel is rotatably connected to the center of the adjusting rod 312.

[0053] When the connecting rod 51 is inserted into the locking cylinder 3, the matching block enters the T-slot 511. At this time, the hydraulic oil in the locking cylinder 3 is reduced, and the circular disk receives the change in the internal pressure of the locking cylinder 3, driving the inner sealing rod 311 to move toward the inside of the locking cylinder 3, and the inner sealing rod 311 drives the adjusting rod 312 to rotate, and the adjusting rod 312 pushes the locking block 313 outward so that the locking block 313 can cooperate with the T-slot 511. When the inner sealing rod 311 no longer moves relative to the locking piston 31, as the hydraulic oil in the locking cylinder 3 is reduced, the locking piston 31 moves toward the inside of the locking cylinder 3, and drives the connecting rod 51 to move together through the matching block. Therefore, the locking cylinder 3 is used to generate an axial force on the connecting rod 51, and cooperates with the hydraulic cylinder 6 to drive the front plate 5 to move in the direction of the box plate 1 until the front plate 5 cooperates with the box plate 1.

[0054] The combined design of the connecting seat 4, the hydraulic cylinder 6 and the front plate 5 allows the front plate 5 to rotate to a position perpendicular to the corresponding box plate 1, and then maintain this state and translate to cooperate with the box plate 1, thereby improving the sealing effect of the front plate 5 and the box plate 1.

[0055] The shaping box and the upper plate 7 are combined to form a cavity for shaping the plastic foam. An upper box 71 is fixedly installed on the upper surface of the upper plate 7. A feed box 8 is arranged inside the upper box 71. A delivery pipe 11 is installed on the upper surface of the feed box 8. The foam particles are transported to the feed box 8 by means of the delivery pipe 11. A hydraulic rod 17 is installed on the top surface of the upper box 71. The hydraulic rod 17 is connected to the hydraulic system. The hydraulic rod 17 is used to drive and control the feed box 8 to move upward or downward. A plurality of feed pipes 9 are arranged at the bottom of the feed box 8. The feed pipes 9 extend to the side wall of the tube surface inside the feed box 8 and a feed port 91 is provided.

[0056] The upper end of the feed pipe 9 extends to the interior of the feed box 8, and a guide plate 1 81 and a guide plate 2 82 are installed inside the feed box 8. The two guide plates 1 81 form a group and are distributed in a V shape on both sides of the feed pipe 9. The guide plate 2 82 is located between the two guide plates 1 81 in the same group. The two guide plates 82 form a group and are distributed in a V shape on both sides of the feed pipe 9, and correspond to the feed port 91 at the same time.

[0057] The foam particles entering the feed pipe 9 move into the guide plate 2 82 under the action of the guide plate 1 81 , and the guide plate 2 82 transports the foam particles to the feed port 91 of the feed pipe 9 , so that the foam particles in the feed box 8 enter the feed pipe 9 through the feed port 91 .

[0058] A support ring 92 is fixedly installed above the feed port 91 inside the feed pipe 9, a drive ring 93 is rotatably installed inside the support ring 92, a screw 94 is fixedly installed on the lower surface of the drive ring 93, and the rotation of the drive ring 93 drives the screw 94 to rotate synchronously.

[0059] A discharge port 95 is provided on the lower side wall of the feed pipe 9 , and the foam particles in the feed pipe 9 are transported toward the discharge port 95 by the rotation of the screw 94 , and the foam particles in the feed pipe 9 enter the shaping box through the discharge port 95 .

[0060] Specifically, a vibration rod 15 is axially arranged inside the driving ring 93 , a vibration box 12 is fixedly installed on the upper surface of the feed box 8 , a vibration plate 121 is arranged inside the vibration box 12 , and the upper end of the vibration rod 15 is fixedly installed on the lower surface of the vibration plate 121 .

[0061] An eccentric disk 14 is rotatably installed inside the vibration box 12 , and a circular eccentric groove 141 is formed on the surface of the eccentric disk 14 . A guide post 1211 is fixedly provided on the side surface of the vibration plate 121 , and the guide post 1211 is located inside the eccentric groove 141 .

[0062] Two groups of eccentric disks 14 are arranged on the same side of the vibration plate 121, and a transmission shaft 13 is arranged between the two groups of eccentric disks 14. The transmission shaft 13 is driven to rotate by a motor installed inside the vibration box 12. Gear sets 131 are installed at both ends of the transmission shaft 13. The gear set 131 consists of two mutually meshing bevel gears, one of which is coaxially fixedly connected to the eccentric disk 14. Eccentric disks 14 are arranged on both sides of the vibration plate 121. Multiple groups of eccentric disks 14 cooperate to ensure the stability of the vibration of the vibration plate 121 and provide sufficient vibration driving force for the vibration plate 121.

[0063] A wavy guide groove 931 is provided on the inner ring surface of the driving ring 93, and the bottom surface of the guide groove 931 is composed of a number of stepped inclined surfaces connected end to end. A guide column 151 is radially slidably installed inside the vibration rod 15, and a compression spring is provided between the guide column 151 and the vibration rod 15. The guide column 151 can elastically extend and slide inside the vibration rod 15. The guide column 151 is located inside the guide groove 931. The wavy design of the guide groove 931 and the stepped inclined surface design of the bottom surface can make the guide column 151 slide unidirectionally inside the guide groove 931. When the vibration rod 15 reciprocates, the cooperation between the guide column 151 and the guide groove 931 is utilized to make the driving ring 93 rotate continuously in the same direction. Therefore, the axial vibration of the vibration rod 15 is utilized to drive the driving ring 93 to rotate continuously, thereby driving the screw 94 to rotate continuously.

[0064] A vibration head 10 is radially slidably installed at the lower end of the feed pipe 9. The interior of the vibration head 10 is a cavity. A vibration spring 102 is provided between the inner wall of the cavity and the lower end surface of the feed pipe 9. A corrugated plate 101 is provided inside the cavity, and the side surface of the corrugated plate 101 is a corrugated surface.

[0065] The lower end of the vibration rod 15 can extend to the interior of the vibration head 10, and the vibration rod 15 can vibrate along its axial direction in the feed pipe 9. A spherical top block 152 is fixedly installed on the side surface of the lower end of the vibration rod 15. When the vibration rod 15 moves axially, the top block 152 can contact the corrugated surface of the corrugated plate 101. When the top block 152 contacts the corrugated plate 101, it will push the corrugated plate 101 to move, thereby causing the vibration head 10 to move radially, and cooperate with the vibration spring 102 to realize radial vibration of the vibration head 10.

[0066] The axial vibration of the vibration rod 15 drives the vibration head 10 to continuously vibrate radially, so that the foam particles are transported to the molding box through a plurality of feeding pipes 9, and the vibration of the vibration head 10 is utilized to densely fill the foam particles in the molding box, which is also conducive to the plastic foam being spread flat in the molding box.

[0067] The inner surfaces of the shaping box and the upper plate 7 are both installed with heat-setting plates 16. The heat-setting plates 16 on the lower surface of the upper plate 7 are provided with a plurality of through holes, which are matched with the vibration head 10. The heat-setting plates 16 are combined with each other to form a shaping cavity for the plastic foam. Embodiment 2:

[0068] This embodiment further optimizes the internal structure of the vibration head 10 on the basis of the first embodiment, namely:

[0069] See also Figure 11-Figure 12 A plurality of corrugated plates 101 are arranged in the cavity inside the vibration head 10. The plurality of corrugated plates 101 are sequentially distributed along the axis direction of the cavity. An angle exists between two adjacent corrugated plates 101. At most one corrugated plate 101 is arranged in the same plane passing through the axis of the cavity.

[0070] A plurality of top blocks 152 are disposed at the lower end of the vibration rod 15 . The plurality of top blocks 152 are sequentially distributed along the axial direction of the vibration rod 15 . The plurality of top blocks 152 correspond to the plurality of corrugated plates 101 one by one, respectively.

[0071] Multiple top blocks 152 cooperate with corrugated plates 101 in multiple different directions. During the movement of the vibration rod 15, the vibration head 10 can vibrate in different radial directions to increase the vibration direction of the vibration head 10 and improve the filling and paving effect of the foam particles around the vibration head 10.

[0072] Working principle of plastic foam shaping equipment:

[0073] First, fit the side panel 2 with the box panel 1, and then fit the front panel 5 with the box panel 1 and the side panel 2. Then, use the hydraulic telescopic rod to drive the upper panel 7 close to the shaping box, and then use the feed pipe 11 to transport the plastic foam particles to the feed box 8. With the cooperation of the guide plate 1 81 and the guide plate 2 82, the plastic foam particles enter the feed port 91 of the feed pipe 9.

[0074] The motor inside the vibration box 12 drives the transmission shaft 13 to rotate, and the transmission shaft 13 drives the eccentric disk 14 to rotate through the gear set 131. The eccentric groove 141 on the surface of the eccentric disk 14 cooperates with the guide column 1211 to drive the vibration plate 121 to vibrate, and the vibration plate 121 drives the vibration rod 15 to vibrate.

[0075] When the vibration rod 15 reciprocates axially, the guide column 151 cooperates with the guide groove 931 to drive the driving ring 93 to rotate continuously, and the driving ring 93 drives the screw 94 to rotate together. The screw 94 continuously transports the plastic foam particles in the feed pipe 9 toward the discharge port 95, and the plastic foam particles enter the shaping box through the discharge port 95. As the plastic foam particles in the shaping box continue to increase, the hydraulic rod 17 controls the movement of the feed box 8 to allow the vibration head 10 to extend into the plastic foam particles filled in the shaping box.

[0076] When the vibration rod 15 reciprocates axially, the top block 152 at the lower end of the vibration rod 15 will continuously contact the corrugated plate 101. The top block 152 cooperates with the corrugated surface of the corrugated plate 101 and drives the vibration head 10 to vibrate radially under the action of the vibration spring 102. The vibration of the vibration head 10 is used to densely fill the plastic foam particles around it, and the filled plastic foam particles are spread flat in the shaping box. When the plastic foam particles in the shaping box continue to increase, the hydraulic rod 17 is used to slowly adjust the feed box 8 to move upward, so that the discharge port 95 of the feed pipe 9 always maintains a certain distance from the upper layer of the plastic foam particles in the shaping box, and at the same time, the vibration head 10 extends into the plastic foam particle layer until the plastic foam particles are filled. At this time, the lower end surface of the vibration head 10 is in a matched state with the through hole in the heat-setting plate 16 on the lower surface of the upper plate 7.

[0077] Afterwards, the upper plate 7 is driven to cooperate with the shaping box by the hydraulic telescopic rod, so that the plastic foam particles in the shaping box can be heat-shaped.

[0078] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic foam shaping device, comprising a shaping box and an upper plate (7), wherein an upper box (71) is fixedly mounted on the upper surface of the upper plate (7), characterized in that: A feed box (8) is arranged inside the upper box (71), and a plurality of feed pipes (9) are arranged at the bottom of the feed box (8); The upper end of the feed pipe (9) extends into the interior of the feed box (8), a discharge port (95) is provided on the side wall of the lower end of the feed pipe (9), and a vibration head (10) is radially slidably mounted on the lower end of the feed pipe (9); Using a plurality of the feeding pipes (9) to transport the foam particles into the shaping box, and using the vibration of the vibration head (10) to densely fill and spread the foam particles in the shaping box; The feed pipe (9) extends to the inside of the feed box (8) and has a feed opening (91) formed on the side wall of the pipe surface; A support ring (92) is fixedly mounted above the feed port (91) inside the feed pipe (9), a drive ring (93) is rotatably mounted inside the support ring (92), a screw rod (94) is fixedly mounted on the lower surface of the drive ring (93), and the screw rod (94) is driven to rotate synchronously by the rotation of the drive ring (93); A vibration rod (15) is axially arranged inside the driving ring (93), the lower end of the vibration rod (15) can extend into the interior of the vibration head (10), and the vibration rod (15) can vibrate along the axial direction of the feeding tube (9); Utilizing the axial vibration of the vibration rod (15) to drive the driving ring (93) to rotate continuously, and to drive the vibration head (10) to vibrate continuously in the radial direction; The inner ring surface of the driving ring (93) is provided with a wave-shaped guide groove (931), and the bottom surface of the guide groove (931) is composed of a plurality of stepped inclined surfaces connected end to end; A second guide post (151) is radially slidably mounted inside the vibration rod (15), the second guide post (151) being elastically telescopic and slidable inside the vibration rod (15), and the second guide post (151) is located inside the guide groove (931); The interior of the vibration head (10) is a cavity, a vibration spring (102) is provided between the inner wall of the cavity and the lower end surface of the feed pipe (9), a corrugated plate (101) is provided inside the cavity, and the side surface of the corrugated plate (101) is a corrugated surface; A spherical top block (152) is fixedly mounted on the side surface of the lower end of the vibration rod (15), and when the vibration rod (15) moves axially, the top block (152) can contact the corrugated surface of the corrugated plate (101); A plurality of corrugated plates (101) are arranged in the cavity inside the vibration head (10), the plurality of corrugated plates (101) are sequentially distributed along the axis direction of the cavity, an angle exists between two adjacent corrugated plates (101) above and below, and at most one corrugated plate (101) is arranged in the same plane passing through the axis of the cavity; A plurality of top blocks (152) are provided at the lower end of the vibration rod (15), the plurality of top blocks (152) are sequentially distributed along the axial direction of the vibration rod (15), and the plurality of top blocks (152) correspond one-to-one to the plurality of corrugated plates (101) respectively; A vibration box (12) is fixedly mounted on the upper surface of the feed box (8), a vibration plate (121) is provided inside the vibration box (12), and the upper end of the vibration rod (15) is fixedly mounted on the lower surface of the vibration plate (121); An eccentric disk (14) is rotatably mounted inside the vibration box (12), a circular eccentric groove (141) is provided on the surface of the eccentric disk (14), and a guide column 1 (1211) is fixedly provided on the side surface of the vibration plate (121), the guide column 1 (1211) being located inside the eccentric groove (141).

2. The plastic foam shaping device according to claim 1, characterized in that: A material guide plate 1 (81) and a material guide plate 2 (82) are installed inside the feed box (8), the two material guide plates 1 (81) form a group and are distributed in a V shape on both sides of the feed pipe (9), the material guide plate 2 (82) is located between the two material guide plates 1 (81) in the same group, the two material guide plates 2 (82) form a group and are distributed in a V shape on both sides of the feed pipe (9), and correspond to the feed port (91).

3. The plastic foam shaping device according to claim 1, characterized in that: The shaping box is composed of an L-shaped box plate (1), a side plate (2) and a front plate (5), wherein the lower side edge of the side plate (2) is rotatably connected to the bottom plate of the box plate (1); A connecting seat (4) is slidably mounted on a side surface of the box plate (1) close to the front plate (5), a shaft is rotatably mounted inside the connecting seat (4), the front plate (5) is fixedly connected to the shaft, a hydraulic cylinder (6) is fixedly mounted on the outer surface of the box plate (1), and the telescopic end of the hydraulic cylinder (6) is fixedly connected to the connecting seat (4); A connecting rod (51) is fixedly mounted on one side of the front plate (5) away from the connecting seat (4), and a locking cylinder (3) is fixedly mounted on the outer surface of the side plate (2). After the side plate (2) is matched with the box plate (1), when the front plate (5) is rotated to a state perpendicular to the side plate (2), the front plate (5) is driven to move toward the box plate (1) by the hydraulic cylinder (6), and the connecting rod (51) can be inserted into the locking cylinder (3), so that the locking cylinder (3) generates an axial force on the connecting rod (51).

4. The plastic foam shaping device according to claim 3, characterized in that: A T-shaped groove (511) is provided inside the free end of the connecting rod (51); A locking piston (31) is sealingly and slidably mounted inside the locking cylinder (3), a matching block is fixedly mounted on the outer surface of the locking piston (31), the matching block is matched with the T-shaped groove (511), a channel is provided at the center of the locking piston (31), an inner sealing rod (311) is sealingly and slidably mounted inside the channel, and a circular disk is provided at one end of the inner sealing rod (311) extending to the inside of the cylinder body of the locking piston (31); Two locking blocks (313) are radially slidably mounted inside the matching block, a V-shaped adjusting rod (312) is provided between the two locking blocks (313), and one end of the inner sealing rod (311) located inside the channel is rotatably connected to the center of the adjusting rod (312).

5. The plastic foam shaping device according to claim 1, characterized in that: The inner surfaces of the shaping box and the upper plate (7) are both installed with heat shaping plates (16), and the heat shaping plate (16) on the lower surface of the upper plate (7) is provided with a plurality of through holes, which are matched with the vibration head (10).

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