Plastic-wood floor processing extrusion structure

Abstract

The invention relates to the technical field of plastic-wood floor injection molding processing, and discloses a plastic-wood floor processing extrusion structure which comprises a bottom plate, an injection molding machine is installed on one side of the top end of the bottom plate, a lower mold is fixed to the other side of the top end of the bottom plate, an injection molding nozzle is communicated between the lower mold and the injection molding machine, and an opening in the end, close to the injection molding machine, of the injection molding nozzle is circular. And the length of the rectangle is greater than the diameter of the circle. Through the action of the angle adjusting mechanism, injection molding of different angles in the mold cavity is achieved, the full filling effect of thermoplastic raw materials in the mold cavity is promoted, in cooperation with the synchronous vibration performance of the vibration mechanism during injection molding of the thermoplastic raw materials, uniform filling of the thermoplastic raw materials in the mold cavity is further promoted, and meanwhile under the action of the cooling mechanism, the mold cavity is cooled. Circulating cooling at different temperatures in the injection molding process is synchronously achieved, the cooling stability is guaranteed, mold damage is reduced, and meanwhile the whole injection molding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic wood floor injection molding processing, in particular to a plastic wood floor processing extrusion structure. Background Art

[0002] Plastic wood flooring is a new type of environmentally friendly wood-plastic composite material product. It is mainly made of plastic and wood fiber through special processing. In order to ensure the aesthetics of the floor surface, injection molding and extrusion can be used to squeeze the hot melt raw materials into a specific mold for cooling and shaping.

[0003] Chinese patent authorization announcement number CN220052623U discloses a new type of rubber extrusion molding, including an injection machine main body, wherein an injection barrel is bolted on the upper left side of the injection machine main body; a feed pipe is inserted into the upper part of the injection barrel, and the depth of the adjustment rod inserted into the storage frame can be adjusted according to the size of different lower molds, and after the adjustment is completed, the adjustment bolt is tightened from the front side of the storage frame, thereby facilitating the fixing of the adjustment rod.

[0004] The above-mentioned prior art solution has the following shortcomings: the outlet head of the device is located at the center of the upper mold, so the discharge angle of the thermoplastic raw material is single. Due to the single discharge angle, the thermoplastic raw material needs to fill the mold cavity through its own fluidity inside the mold cavity. Since the thermoplastic raw material has a certain viscosity, the filling effect and efficiency inside the mold cavity are reduced, so there is room for improvement. Summary of the invention

[0005] The object of the present invention is to provide a plastic wood floor processing extrusion structure to solve the problems of the existing plastic wood floor processing extrusion structure mentioned in the background art in terms of the filling effect and efficiency of the mold cavity.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plastic wood floor processing extrusion structure, comprising a bottom plate, an injection molding machine is installed on one side of the top of the bottom plate, a lower mold is fixed on the other side of the top of the bottom plate, and an injection nozzle is connected between the lower mold and the injection molding machine, and the injection nozzle is opened in a circular shape at one end close to the injection molding machine, and the injection nozzle is opened in a rectangular shape at one end close to the lower mold, and the length of the rectangle is greater than the diameter of the circle, an L-shaped frame is fixed on one side of the top of the bottom plate away from the injection molding machine and the lower mold, and an electric telescopic rod is arranged at the top of the L-shaped frame, an upper mold is fixed at the bottom end of the electric telescopic rod, and the upper mold moves downward and closes the mold with the lower mold to form a mold cavity, and an angle adjustment mechanism is arranged on the side of the injection nozzle close to the lower mold to discharge the thermoplastic raw material inside the injection molding machine at multiple angles, so as to promote the rapid filling of the raw material into the mold cavity;

[0007] The angle adjustment mechanism includes two support plates relatively arranged on both sides of the top of the bottom plate, and the two support plates are respectively located on both sides of the lower mold, and a bidirectional reciprocating screw is connected between the two support plates, one end of the bidirectional reciprocating screw is provided with a motor, the outer sleeve of the bidirectional reciprocating screw is provided with two symmetrically distributed reciprocating sleeves, and one side of the reciprocating sleeves is fixed with a tooth plate, one side of the tooth plate is provided with a discharge assembly, and the bottom end of the discharge assembly passes through the interior of the lower mold;

[0008] Vibration mechanisms are provided on both sides of the bottom end of the lower mold to make the thermoplastic raw material vibrate synchronously during injection. The vibration mechanism includes a vibration guide assembly rotatably connected to the bottom end of the lower mold, and a plurality of fixed guide rings are fixed at equal intervals on the outer side of the bottom end of the lower mold, and vibration parts are slidably connected to the inside of the fixed guide rings.

[0009] Preferably, the discharge assembly includes four adjacent discs rotatably connected to the inside of the lower mold, and the top ends of the discs are fixedly connected to rotating rods, the top ends of the rotating rods extend to the outside of the lower mold and are installed with half gears, the two half gears on the same side and the toothed plates on the same side are meshed with each other, and the insides of the discs are provided with discharge channels, which are used to connect the injection nozzle and the lower mold and change the direction in which the thermoplastic material is discharged from the injection nozzle.

[0010] Preferably, the vibration guide assembly includes a vertical rod fixed to the bottom end of the reciprocating sleeve, and a connecting ring is fixed to the bottom end of the vertical rod, a movable rod is movable inside the connecting ring and penetrates therethrough, and one end of the movable rod is fixedly connected to a rotating plate, and the end of the rotating plate away from the connecting ring is rotatably connected to the bottom end of the lower mold through a rotating shaft, and the top surface of the rotating plate is an inclined surface.

[0011] Preferably, the vibration member includes a lifting rod slidingly passing through the fixed guide ring, and fixed blocks are fixed on both sides of the lifting rod, and knocking rods are fixed to the top of the fixed blocks, and the top height of the knocking rods is lower than the top height of the lifting rods. When the rotating plate is located directly below the fixed guide ring as a whole, the lifting rod is moved vertically upward along the fixed guide ring under the action of the inclined surface of the rotating plate, and the lifting rod is inserted upward into the inner cavity opened in the lower mold, so that the top end of the lifting rod is inserted into the inner cavity, and the knocking rod hits the bottom end of the lower mold.

[0012] Preferably, a cooling mechanism is provided inside the lower mold to gradually cool the thermoplastic raw material during the injection molding process, and the cooling mechanism includes a normal temperature cooling component arranged inside the lower mold on one side close to the injection molding machine, and a low temperature cooling component arranged on the other side inside the lower mold, the low temperature cooling component and the normal temperature cooling component are both located between the mold cavity and the inner cavity, self-starting components are provided on both sides of the inner cavity, one end of the self-starting component is connected to the normal temperature cooling component, and the self-starting component is electrically connected to the low temperature cooling component.

[0013] Preferably, the low-temperature cooling component includes a low-temperature cooling tube which is S-shaped and passes through the interior of the lower mold, and both ends of the low-temperature cooling tube are connected to both ends of a heat exchanger fixedly mounted on the outside of the L-shaped frame. The normal temperature cooling component includes a water tank fixed to the lower mold on one side close to the injection molding machine, and a normal temperature cooling tube which is S-shaped and passes through the interior of the lower mold on one side close to the injection molding machine, and both ends of the normal temperature cooling tube pass through the interior of the water tank, and the one-way water inlet end of the normal temperature cooling tube is inserted below the coolant level in the water tank, and the one-way water outlet end of the normal temperature cooling tube is above the coolant level in the water tank. The self-starting component includes an extrusion plate movably mounted inside the inner cavity, and an air bag is fixedly connected to the top of the extrusion plate, one end of the air bag is connected to a connecting tube, and one end of the connecting tube passes through the interior of the water tank, and the air outlet end of the connecting tube is above the coolant level in the water tank.

[0014] Preferably, when the top end of the lifting rod is inserted into the inner cavity, the extrusion plate will be squeezed upward to compress the airbag, allowing the gas to enter the water tank, thereby increasing the air pressure inside the water tank, causing the coolant to flow from one end of the constant temperature cooling pipe to the other end and flow back into the water tank. An airflow sensor is provided inside the connecting pipe. When the airflow sensor does not detect any airflow change, the heat exchanger is automatically started, and the coolant temperature in the heat exchanger is lower than the coolant temperature in the water tank.

[0015] Preferably, a material guide slope is installed on one side of the lower mold away from the L-shaped frame and the injection molding machine, and the bottom end of the material guide slope is fixedly connected to the top end of the bottom plate, and side plates are fixed on both sides of the material guide slope. The length of the material guide slope and the length of the lower mold are adapted to each other, and an ejection mechanism is arranged in the mold cavity of the lower mold. The upper ejection mechanism is used to eject the plastic wood floor and tilt the material. A linkage component is arranged on the outer side of the upper mold, so that when the upper mold moves upward to separate the mold, the ejection mechanism is started to eject upward.

[0016] Preferably, the linkage assembly includes a rectangular frame slidably mounted on the top of the base plate, and the rectangular frame is located directly below the lower mold, and two parallel L-shaped fixing plates are fixedly connected to the outer side of the rectangular frame, and two parallel special-shaped guide plates are fixedly mounted on the outer side of the upper mold, and the special-shaped guide plates are each provided with vertical folding holes, and the interiors of the vertical folding holes are penetrated by connecting blocks, and the outer ends of the connecting blocks are fixedly connected to the inner sides of the corresponding L-shaped fixing plates.

[0017] Preferably, the ejection mechanism includes two guide plates 1 fixedly mounted on one side of the top end of the rectangular frame, and two guide plates 2 fixed on the other side of the top end of the rectangular frame, guide groove 1 is provided on the inner side of the guide plate 1, guide groove 2 is provided on the inner side of the guide plate 2, and the projection length of guide groove 2 and guide groove 1 are the same, the highest position of guide groove 1 is equal to half of the highest position of guide groove 2, and ejection pieces are provided inside the guide groove 1 and guide groove 2, the ejection pieces include a fixed sleeve fixed on the top end of the bottom plate, and an ejection rod is slidably mounted inside the fixed sleeve, the top end of the ejection rod is inserted into the interior of the mold cavity, guide blocks are fixed on the outer side of the ejection rod, and the guide blocks are inserted into the corresponding guide groove 1 and the interior of the ejection piece.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) Through the function of the injection nozzle, the thermoplastic raw material is discharged in a rectangular shape through compression and guidance to adapt to the shape structure of the cavity in the lower mold. At the same time, with the function of the discharge component, the thermoplastic raw material is discharged in multiple channels. With the cooperation of the discharge component, the half gear, etc., the discharge angle of the discharge channel is swung, so that the distribution width of the discharged thermoplastic raw material changes. The discharge impact force at different azimuth angles is used to enable the thermoplastic raw material to fully fill the cavity. At the same time, under the action of the vibration mechanism, the lifting rod drives the knocking rod to reciprocately knock the bottom end of the lower mold. The vibration during the filling process of the lower mold cavity is used to further promote the uniform distribution of the thermoplastic raw material in each channel, and the vibration is used to further promote the outward extension flow of the raw material, thereby improving the filling rate;

[0020] (2) Through the self-starting component, the synchronous pressure reset change of the airbag during the vibration process is utilized to change the air pressure change inside the water tank, so as to promote the circulation of the coolant in the normal temperature cooling pipe, and to pre-cool the thermoplastic raw material. On the one hand, it can avoid excessive cooling that leads to premature solidification of the thermoplastic raw material, and on the other hand, it can avoid direct low-temperature cooling that causes the thermoplastic raw material to be rapidly cooled and form condensation beads on the surface, and reduce damage to the mold. At the same time, the air flow sensor is used to control the subsequent start-up of the low-temperature cooling component, so that low-temperature cooling is automatically performed after the injection molding is completed, and the pre-cooling effect is combined to promote the overall cooling efficiency;

[0021] (3) Through the action of the linkage assembly, after the lower mold moves upward for a certain distance, it can drive the rectangular frame to slide horizontally. With the action of the ejection mechanism, when the rectangular frame slides horizontally, the ejector rod can be automatically ejected upward, so that the molded product in the mold cavity is ejected upward. In addition, by using the cooperation of the guide groove 1 and the guide groove 2, the ejection heights of the front and rear groups of ejector rods are different, and then the molded product slides outward along the guide slope in an inclined state. On the one hand, automatic unloading is realized, and on the other hand, the impact damage to the molded product during unloading is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the angle adjustment mechanism distribution of the present invention;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the discharging assembly of the present invention;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the vibration mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the cooling mechanism of the present invention;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the material guide slope of the present invention;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the linkage assembly of the present invention;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the ejection mechanism of the present invention;

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the ejector of the present invention.

[0032] Explanation of the reference numerals in the figure: 1. bottom plate; 2. injection molding machine; 3. injection molding nozzle; 4. lower mold; 5. cooling mechanism; 51. low temperature cooling assembly; 511. heat exchanger; 512. low temperature cooling pipe; 52. normal temperature cooling assembly; 521. water tank; 522. normal temperature cooling pipe; 53. self-starting assembly; 531. air bag; 532. extrusion plate; 533. connecting pipe; 6. upper mold; 7. L-shaped frame; 8. electric telescopic rod; 9. angle adjustment mechanism; 91. two-way reciprocating screw rod; 92. reciprocating sleeve; 93. tooth plate; 94. discharge assembly; 941. disc; 942. discharge channel; 943. rotating rod; 944. half gear; 95. motor; 10. vibration mechanism; 101. Vibration guide assembly; 1011, vertical rod; 1012, connecting ring; 1013, movable rod; 1014, rotating plate; 102, fixed guide ring; 103, vibration member; 1031, lifting rod; 1032, fixed block; 1033, knocking rod; 11, inner cavity; 12, material guide slope; 13, side plate; 14, ejection mechanism; 141, guide plate one; 142, guide plate two; 143, guide groove one; 144, guide groove two; 145, ejector; 1451, fixed sleeve; 1452, ejector rod; 1453, guide block; 15, linkage assembly; 151, rectangular frame; 152, L-shaped fixed plate; 153, connecting block; 154, vertical folding hole; 155, special-shaped guide plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0034] Embodiment 1

[0035] In order to solve the problem of the filling effect and efficiency of the existing plastic wood floor processing extrusion structure for the mold cavity, the following solution is disclosed, specifically as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown:

[0036] A plastic wood floor processing extrusion structure comprises a bottom plate 1, an injection molding machine 2 is installed on one side of the top of the bottom plate 1, a lower mold 4 is fixed on the other side of the top of the bottom plate 1, and an injection nozzle 3 is connected between the lower mold 4 and the injection molding machine 2, and the injection nozzle 3 has a circular opening at one end close to the injection molding machine 2, and a rectangular opening at one end close to the lower mold 4, and the length of the rectangle is greater than the diameter of the circle, an L-shaped frame 7 is fixed on the side of the top of the bottom plate 1 away from the injection molding machine 2 and the lower mold 4, and an electric telescopic rod 8 is arranged at the top of the L-shaped frame 7, an upper mold 6 is fixed at the bottom end of the electric telescopic rod 8, and the upper mold 6 moves downward to close the mold with the lower mold 4 to form a mold cavity, and an angle adjustment mechanism 9 is arranged on the side of the injection nozzle 3 close to the lower mold 4 to discharge the thermoplastic raw material inside the injection molding machine 2 at multiple angles to promote the rapid filling of the raw material into the mold cavity;

[0037] The angle adjustment mechanism 9 includes two support plates relatively arranged on both sides of the top of the bottom plate 1, and the two support plates are respectively located on both sides of the lower mold 4, and a bidirectional reciprocating screw 91 is connected between the two support plates, a motor 95 is arranged at one end of the bidirectional reciprocating screw 91, and two symmetrically distributed reciprocating sleeves 92 are arranged on the outside of the bidirectional reciprocating screw 91, and a tooth plate 93 is fixed on one side of the reciprocating sleeve 92, and a discharge assembly 94 is arranged on one side of the tooth plate 93, and the bottom end of the discharge assembly 94 passes through the inside of the lower mold 4;

[0038] A vibration mechanism 10 is provided on both sides of the bottom of the lower mold 4 to make the thermoplastic material vibrate synchronously when injected. The vibration mechanism 10 includes a vibration guide assembly 101 rotatably connected to the bottom of the lower mold 4. A plurality of fixed guide rings 102 are fixed at equal intervals on the outer side of the bottom of the lower mold 4, and a vibration member 103 is slidably connected inside the fixed guide rings 102.

[0039] The discharge assembly 94 includes four adjacent disks 941 rotatably connected to the lower mold 4, and the tops of the disks 941 are fixedly connected to rotating rods 943, the tops of the rotating rods 943 extend to the outside of the lower mold 4 and are equipped with half gears 944, the two half gears 944 on the same side and the toothed plates 93 on the same side are meshed with each other, and the insides of the disks 941 are provided with discharge channels 942, which are used to connect the injection nozzle 3 and the lower mold 4, and change the direction in which the thermoplastic material is discharged from the injection nozzle 3;

[0040] The vibration guide assembly 101 includes a vertical rod 1011 fixed to the bottom end of the reciprocating sleeve 92, and a connecting ring 1012 is fixed to the bottom end of the vertical rod 1011, and a movable rod 1013 is movably penetrated inside the connecting ring 1012, and one end of the movable rod 1013 is fixedly connected to a rotating plate 1014, and one end of the rotating plate 1014 away from the connecting ring 1012 is rotatably connected to the bottom end of the lower mold 4 through a rotating shaft, and the top surface of the rotating plate 1014 is an inclined surface;

[0041] The vibration member 103 includes a lifting rod 1031 that slides through the fixed guide ring 102, and fixed blocks 1032 are fixed on both sides of the lifting rod 1031, and knocking rods 1033 are fixed to the top of the fixed blocks 1032, and the top height of the knocking rod 1033 is lower than the top height of the lifting rod 1031. When the rotating plate 1014 is located directly below the fixed guide ring 102 as a whole, under the action of the inclined surface of the rotating plate 1014, the lifting rod 1031 moves vertically upward along the fixed guide ring 102, and the lifting rod 1031 is inserted upward into the inner cavity 11 opened in the lower mold 4, so that the top end of the lifting rod 1031 is inserted into the interior of the inner cavity 11, and the knocking rod 1033 hits the bottom end of the lower mold 4.

[0042] In this embodiment, when in use, the upper mold 6 and the lower mold 4 are in the mold closing position, the thermoplastic raw material is introduced into the injection molding machine 2, the injection molding machine 2 is used to heat-melt the raw material, and then it flows into the lower mold 4 through the injection nozzle 3. At this time, the motor 95 is started to rotate the bidirectional reciprocating screw 91, so that the left and right reciprocating sleeves 92 move away and close in a cycle, and the two tooth plates 93 move synchronously, so that the left and right sets of half gears 944 mesh and rotate, and the rotating rod 943 reciprocates within a certain angle, so that the discharge channel 942 rotates synchronously, so that the thermoplastic raw material is discharged from the four discharge channels 942 in different directions, so that the overall discharge width of the thermoplastic raw material changes, so that the raw material can fully flow into the space of the mold cavity;

[0043] Due to the reciprocating movement of the left and right reciprocating sleeves 92, the vertical rod 1011 moves synchronously, so that the connecting ring 1012 drives the outer end of the movable rod 1013 to move from the initial outer side to the inner side, thereby causing the rotating plate 1014 to rotate, and driving the inclined surface to move during the rotation process. Due to the movement of the inclined surface, the inclined surface contacts the bottom end of the lifting rod 1031, and the bottom end of the lifting rod 1031 moves upward along the fixed guide ring 102 under the guidance of the inclined surface, so that the knocking rod 1033 hits the bottom end of the lower mold 4, and the impact force is used to vibrate the thermoplastic material inside the mold cavity of the lower mold 4, thereby further promoting the continuous fluidity of the thermoplastic material to the outside, so that the mold can be filled quickly and evenly, thereby improving the injection molding efficiency.

[0044] Embodiment 2

[0045] This embodiment is different from the first embodiment. Through the cooling mechanism 5 and the cooperation of the vibration mechanism 10, the thermoplastic raw material is pre-cooled during the injection molding process to ensure the cooling efficiency and avoid imperfect molding and mold damage caused by sudden cooling. Figure 4 , Figure 5 As shown:

[0046] A cooling mechanism 5 is provided inside the lower mold 4 to gradually cool down the thermoplastic raw material during the injection molding process. The cooling mechanism 5 includes a normal temperature cooling component 52 provided inside the lower mold 4 on one side close to the injection molding machine 2, and a low temperature cooling component 51 provided inside the lower mold 4 on the other side. The low temperature cooling component 51 and the normal temperature cooling component 52 are both located between the mold cavity and the inner cavity 11. Self-starting components 53 are provided on both sides of the inner cavity 11, and one end of the self-starting component 53 is connected to the normal temperature cooling component 52, and the self-starting component 53 is electrically connected to the low temperature cooling component 51.

[0047] The low temperature cooling assembly 51 includes a low temperature cooling pipe 512 which is S-shaped and penetrates the interior of the lower mold 4, and both ends of the low temperature cooling pipe 512 are connected to both ends of the heat exchanger 511 which is fixedly installed on the outside of the L-shaped frame 7. The normal temperature cooling assembly 52 includes a water tank 521 which is fixed on the side of the lower mold 4 close to the injection molding machine 2, and a normal temperature cooling pipe 522 which is S-shaped and penetrates the interior of the lower mold 4 close to the injection molding machine 2, and both ends of the normal temperature cooling pipe 522 penetrate into the interior of the water tank 521, and the single end of the normal temperature cooling pipe 522 is connected to the heat exchanger 511 which is fixedly installed on the outside of the L-shaped frame 7. The water inlet end is inserted below the coolant level in the water tank 521, and the one-way water outlet end of the normal temperature cooling pipe 522 is above the coolant level in the water tank 521. The self-starting component 53 includes an extrusion plate 532 movably mounted inside the inner cavity 11, and the top of the extrusion plate 532 is fixedly connected to an air bag 531, one end of the air bag 531 is connected to a connecting pipe 533, and one end of the connecting pipe 533 penetrates into the water tank 521, and the air outlet end of the connecting pipe 533 is above the coolant level in the water tank 521;

[0048] When the top end of the lifting rod 1031 is inserted into the inner cavity 11, the extrusion plate 532 will be squeezed upward to compress the airbag 531, allowing the gas to enter the water tank 521, thereby increasing the air pressure inside the water tank 521, causing the coolant to flow from one end of the constant temperature cooling pipe 522 to the other end and flow back to the water tank 521. An airflow sensor is provided inside the connecting pipe 533. When the airflow sensor does not detect any change in airflow, the heat exchanger 511 is automatically started, and the coolant temperature in the heat exchanger 511 is lower than the coolant temperature in the water tank 521.

[0049] In this embodiment, when in use, the lifting rod 1031 is inserted upward into the inner cavity 11, so that the extrusion plate 532 squeezes the airbag 531 upward, so that the gas inside the airbag 531 is transmitted to the water tank 521 through the connecting pipe 533, so that the air pressure inside the water tank 521 is increased, so that the cooling water in the water tank 521 is squeezed into the normal temperature cooling pipe 522 for flowing, so that when the injection nozzle 3 is discharging, the thermoplastic raw material is pre-cooled. Compared with direct low-temperature cooling, the rapid cooling and solidification of the raw material is reduced, and the subsequent cooling rate is guaranteed. Since the compression and reset of the airbag 531 is affected by the vibration of the vibration mechanism 10, that is, during the continuous discharging process of the injection nozzle 3, the cooling mechanism 5 is continuously started. When the injection nozzle 3 completes the discharging, the motor 95 stops, so that the vibration mechanism 10 stops, so that the airflow sensor in the connecting pipe 533 does not detect the airflow signal, so that the low-temperature cooling component 51 is automatically started, and then the low-temperature cooling water inside the low-temperature cooling pipe 512 can further cool and shape the thermoplastic raw material in the lower mold 4.

[0050] Embodiment 3

[0051] This embodiment is different from the first and second embodiments. Through the cooperation of the linkage assembly 15 and the ejection mechanism 14, when the upper mold 6 and the lower mold 4 are separated for a period of time, the molded product can be automatically ejected, and the different ejection distances are used to achieve the inclined sliding of the molded product, thereby reducing the impact damage during the discharge. Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown:

[0052] A material guide slope 12 is installed on one side of the lower mold 4 away from the L-shaped frame 7 and the injection molding machine 2, and the bottom end of the material guide slope 12 is fixedly connected to the top of the bottom plate 1, and side plates 13 are fixed on both sides of the material guide slope 12. The length of the material guide slope 12 and the length of the lower mold 4 are adapted to each other. An ejection mechanism 14 is arranged in the mold cavity of the lower mold 4. The ejection mechanism 14 is used to eject the plastic wood floor and tilt the material. A linkage component 15 is arranged on the outer side of the upper mold 6, so that when the upper mold 6 moves upward to separate the mold, the ejection mechanism 14 is started to eject upward;

[0053] The linkage assembly 15 includes a rectangular frame 151 slidably mounted on the top of the bottom plate 1, and the rectangular frame 151 is located directly below the lower mold 4, and two parallel L-shaped fixing plates 152 are fixedly connected to the outer side of the rectangular frame 151, and two parallel special-shaped guide plates 155 are fixedly mounted on the outer side of the upper mold 6, and the special-shaped guide plates 155 are each provided with a vertical folding hole 154, and the interior of the vertical folding hole 154 is penetrated by a connecting block 153, and the outer end of the connecting block 153 is fixedly connected to the inner side of the corresponding L-shaped fixing plate 152;

[0054] The ejection mechanism 14 includes two guide plates 141 fixedly mounted on one side of the top of the rectangular frame 151, and two guide plates 142 fixed on the other side of the top of the rectangular frame 151. The inner side of the guide plate 141 is provided with a guide groove 143, and the inner side of the guide plate 142 is provided with a guide groove 144. The projection lengths of the guide groove 144 and the guide groove 143 are the same. The highest position of the guide groove 143 is equal to half of the highest position of the guide groove 144. The guide groove 143 and the guide groove 144 are both provided with ejection members 145. The ejection member 145 includes a fixed sleeve 1451 fixed on the top of the bottom plate 1, and an ejection rod 1452 is slidably mounted inside the fixed sleeve 1451. The top of the ejection rod 1452 is inserted into the inside of the mold cavity. The outer side of the ejection rod 1452 is fixed with a guide block 1453, and the guide block 1453 is inserted into the corresponding guide groove 143 and the inside of the ejection member 145.

[0055] In this embodiment, when the molding inside the mold cavity is completed during use, the electric telescopic rod 8 is started to shorten, so that the upper mold 6 rises, thereby separating the lower mold 4 and the upper mold 6. Due to the rise of the upper mold 6, the special-shaped guide plate 155 rises, so that the connecting block 153 moves from the vertical direction in the vertical folding hole 154 to the inclined direction, and because the rectangular frame 151 is guided by the horizontal left and right limiters, the rectangular frame 151 slides horizontally to one side under the action of the vertical folding hole 154, so as to drive the guide plate 141 and the guide plate 2 142 to move in the same direction, and by using the guidance of the guide groove 2 144 and the guide groove 143, and the cooperation of the guide block 1453, the ejection heights of the left and right groups of ejector rods 1452 are different, so that the molded product inside the mold cavity of the lower mold 4 is tilted after being ejected, and the tilting direction is toward the guide slope 12, so that the finished product slides downward along the guide slope 12 to discharge, that is, the automatic unloading effect after the mold is opened is realized.

[0056] 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 wood floor processing extrusion structure, comprising a bottom plate (1), characterized in that: An injection molding machine (2) is installed on one side of the top of the bottom plate (1), a lower mold (4) is fixed on the other side of the top of the bottom plate (1), and an injection nozzle (3) is connected between the lower mold (4) and the injection molding machine (2), and the opening of the injection nozzle (3) close to the injection molding machine (2) is circular, and the opening of the injection nozzle (3) close to the lower mold (4) is rectangular, and the length of the rectangle is greater than the diameter of the circle, an L-shaped frame (7) is fixed on the side of the top of the bottom plate (1) away from the injection molding machine (2) and the lower mold (4), and an electric telescopic rod (8) is arranged at the top of the L-shaped frame (7), an upper mold (6) is fixed at the bottom end of the electric telescopic rod (8), and the upper mold (6) moves downward to close the mold with the lower mold (4) to form a mold cavity, and an angle adjustment mechanism (9) is arranged on the side of the injection nozzle (3) close to the lower mold (4) to discharge the thermoplastic raw material inside the injection molding machine (2) at multiple angles to promote the rapid filling of the raw material into the mold cavity; The angle adjustment mechanism (9) comprises two support plates arranged opposite to each other on both sides of the top end of the bottom plate (1), and the two support plates are respectively located on both sides of the lower mold (4), and a bidirectional reciprocating screw rod (91) is connected between the two support plates, one end of the bidirectional reciprocating screw rod (91) is provided with a motor (95), the outer sleeve of the bidirectional reciprocating screw rod (91) is provided with two symmetrically distributed reciprocating sleeves (92), and one side of the reciprocating sleeves (92) is fixed with a tooth plate (93), one side of the tooth plate (93) is provided with a discharge assembly (94), and the bottom end of the discharge assembly (94) passes through the interior of the lower mold (4); Vibration mechanisms (10) are provided on both sides of the bottom end of the lower mold (4) to cause the thermoplastic raw material to vibrate synchronously when injected. The vibration mechanism (10) comprises a vibration guide assembly (101) rotatably connected to the bottom end of the lower mold (4), and a plurality of fixed guide rings (102) are fixed at equal intervals on the outer side of the bottom end of the lower mold (4), and the interior of the fixed guide rings (102) are slidably connected to vibration members (103).

2. The plastic wood floor processing extrusion structure according to claim 1, characterized in that: The discharge assembly (94) comprises four adjacent disks (941) rotatably connected to the interior of the lower mold (4), and the top ends of the disks (941) are fixedly connected to rotating rods (943), the top ends of the rotating rods (943) extend to the exterior of the lower mold (4) and are provided with half gears (944), the two half gears (944) on the same side and the toothed plates (93) on the same side mesh with each other, and the insides of the disks (941) are provided with discharge channels (942), which are used to connect the injection nozzle (3) and the lower mold (4) and change the direction in which the thermoplastic material is discharged from the injection nozzle (3).

3. The plastic wood floor processing extrusion structure according to claim 1, characterized in that: The vibration guide assembly (101) comprises a vertical rod (1011) fixed to the bottom end of the reciprocating sleeve (92), and a connecting ring (1012) is fixed to the bottom end of the vertical rod (1011), a movable rod (1013) is movably penetrated inside the connecting ring (1012), and one end of the movable rod (1013) is fixedly connected to a rotating plate (1014), and one end of the rotating plate (1014) away from the connecting ring (1012) is rotatably connected to the bottom end of the lower mold (4) through a rotating shaft, and the top end surface of the rotating plate (1014) is an inclined surface.

4. The plastic wood floor processing extrusion structure according to claim 3, characterized in that: The vibration member (103) comprises a lifting rod (1031) which slides through the interior of the fixed guide ring (102), and fixed blocks (1032) are fixed on both sides of the lifting rod (1031), and a knocking rod (1033) is fixed on the top of the fixed block (1032), and the top height of the knocking rod (1033) is lower than the top height of the lifting rod (1031). When the rotating plate (1014) is located directly below the fixed guide ring (102) as a whole, under the action of the inclined surface of the rotating plate (1014), the lifting rod (1031) moves vertically upward along the fixed guide ring (102), and the lifting rod (1031) is inserted upward into the inner cavity (11) opened in the lower mold (4), so that the top end of the lifting rod (1031) is inserted into the interior of the inner cavity (11), and the knocking rod (1033) strikes the bottom end of the lower mold (4).

5. The plastic wood floor processing extrusion structure according to claim 4, characterized in that: A cooling mechanism (5) is arranged inside the lower mold (4) to gradually cool the thermoplastic raw material during the injection molding process. The cooling mechanism (5) comprises a normal temperature cooling component (52) arranged on one side of the lower mold (4) close to the injection molding machine (2), and a low temperature cooling component (51) arranged on the other side of the lower mold (4). The low temperature cooling component (51) and the normal temperature cooling component (52) are both located between the mold cavity and the inner cavity (11). Self-starting components (53) are arranged on both sides of the inner cavity (11), and one end of the self-starting component (53) is connected to the normal temperature cooling component (52), and the self-starting component (53) is electrically connected to the low temperature cooling component (51).

6. The plastic wood floor processing extrusion structure according to claim 5, characterized in that: The low-temperature cooling component (51) comprises a low-temperature cooling pipe (512) which is S-shaped and penetrates the interior of the lower mold (4), and both ends of the low-temperature cooling pipe (512) are connected to both ends of a heat exchanger (511) fixedly mounted on the outside of the L-shaped frame (7). The normal-temperature cooling component (52) comprises a water tank (521) fixed to a side of the lower mold (4) close to the injection molding machine (2), and a normal-temperature cooling pipe (522) which is S-shaped and penetrates the interior of the lower mold (4) close to the injection molding machine (2), and both ends of the normal-temperature cooling pipe (522) penetrate into the interior of the water tank (521), and the normal-temperature cooling pipe (522) The one-way water inlet end of the normal temperature cooling pipe (522) is inserted below the liquid level of the coolant inside the water tank (521), and the one-way water outlet end of the normal temperature cooling pipe (522) is above the liquid level of the coolant inside the water tank (521). The self-starting component (53) includes an extrusion plate (532) movably mounted inside the inner cavity (11), and the top end of the extrusion plate (532) is fixedly connected to an air bag (531), one end of the air bag (531) is connected to a connecting pipe (533), and one end of the connecting pipe (533) passes through the inside of the water tank (521), and the air outlet end of the connecting pipe (533) is located above the liquid level of the coolant inside the water tank (521).

7. The plastic wood floor processing extrusion structure according to claim 6, characterized in that: When the top end of the lifting rod (1031) is inserted into the inner cavity (11), it will press the extrusion plate (532) upwards, compressing the airbag (531) and causing the gas to enter the water tank (521), thereby increasing the air pressure inside the water tank (521), causing the coolant to flow from one end of the constant temperature cooling pipe (522) to the other end and flow back into the water tank (521). An airflow sensor is provided inside the connecting pipe (533). When the airflow sensor does not detect an airflow change, the heat exchanger (511) is automatically started, and the coolant temperature in the heat exchanger (511) is lower than the coolant temperature in the water tank (521).

8. The plastic wood floor processing extrusion structure according to claim 1, characterized in that: A material guide slope (12) is installed on one side of the lower mold (4) away from the L-shaped frame (7) and the injection molding machine (2), and the bottom end of the material guide slope (12) is fixedly connected to the top end of the bottom plate (1), and side plates (13) are fixed on both sides of the material guide slope (12). The length of the material guide slope (12) and the length of the lower mold (4) are mutually adapted. An ejection mechanism (14) is arranged in the mold cavity of the lower mold (4), and the plastic wood floor is ejected and tilted to discharge by the ejection mechanism (14). A linkage component (15) is arranged on the outer side of the upper mold (6), so that when the upper mold (6) moves upward to separate the mold, the ejection mechanism (14) is activated to eject upward.

9. The plastic wood floor processing extrusion structure according to claim 8, characterized in that: The linkage assembly (15) comprises a rectangular frame (151) slidably mounted on the top of the bottom plate (1), and the rectangular frame (151) is located directly below the lower mold (4); two parallel L-shaped fixing plates (152) are fixedly connected to the outer side of the rectangular frame (151); two parallel special-shaped guide plates (155) are fixedly mounted on the outer side of the upper mold (6); the special-shaped guide plates (155) are each provided with a vertical folding hole (154), and the interior of the vertical folding hole (154) is penetrated by a connecting block (153); the outer end of the connecting block (153) is fixedly connected to the inner side of the corresponding L-shaped fixing plate (152).

10. The plastic wood floor processing extrusion structure according to claim 9, characterized in that: The ejection mechanism (14) comprises two guide plates (141) fixedly mounted on one side of the top end of the rectangular frame (151), and two guide plates (142) fixedly mounted on the other side of the top end of the rectangular frame (151), the inner side of each guide plate (141) is provided with a guide groove (143), the inner side of each guide plate (142) is provided with a guide groove (144), and the projection lengths of the guide groove (144) and the guide groove (143) are the same, and the highest position of the guide groove (143) is equal to half of the highest position of the guide groove (144). One, the guide groove one (143) and the guide groove two (144) are both provided with an ejector (145), the ejector (145) comprises a fixing sleeve (1451) fixed to the top end of the base plate (1), and an ejector rod (1452) is slidably mounted inside the fixing sleeve (1451), the top end of the ejector rod (1452) is inserted into the mold cavity, the outer side of the ejector rod (1452) is fixed with a guide block (1453), and the guide block (1453) is inserted into the corresponding guide groove one (143) and the ejector (145).

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