Plastic molding equipment for refrigerator shelf trim

Abstract

The present invention discloses a plastic molding device for refrigerator shelf trim strips, comprising a base, a top of the base being fixedly connected to an operating table, a top of the operating table being provided with an extrusion mechanism, a molding mechanism and a driving mechanism of a mold, the molding mechanism comprising a first mold and a second mold, a second connecting plate being fixedly connected to one side of the second mold, the first mold and the second mold being arranged corresponding to each other, a trigger mechanism and an air jet mechanism being arranged on the inner side of the second connecting plate, and a cooling mechanism being arranged on the inner side of the first mold. The present invention arranges a trigger mechanism, when the first mold is inserted into the inner side of the mold groove, the side of the first mold squeezes the extrusion rod into the inner side of the inner groove, and after the slider slides to the rear side of the air duct, the air inlet pipe discharges the cold gas from the air duct into the inner side of the inner groove, and flows into the inner side of the first mold along the inner side of the inner groove, effectively cooling the plastic on the inner side of the first mold during molding, and effectively improving the molding speed.

Description

Technical Field

[0001] The invention relates to the field of plastic molding, in particular to a plastic molding device for decorative strips of shelves in refrigerators. Background Art

[0002] The outer side of the inner shelf of the refrigerator will be provided with plastic trims to protect the shelf. The choice of plastic molding is mainly determined by the type of plastic, the initial form, and the shape and size of the product. Common methods for processing thermoplastics include extrusion, injection molding, calendering, blow molding and thermoforming, and thermosetting plastics are generally processed by compression molding, transfer molding, and injection molding. Plastic molding is the process of making various forms of plastic into products or blanks of the desired shape. There are more than 30 molding methods. When the existing plastic molding equipment is in use, after the plastic enters the mold for molding, the heat inside is difficult to dissipate quickly, resulting in a slow solidification process and uneven solidification. When the plastic molding mold is taken out, it is easy to be damaged, affecting the quality of the finished product. Summary of the invention

[0003] The object of the present invention is to provide a plastic molding device for refrigerator shelf trim strips to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a plastic molding device for refrigerator shelf trim strips, comprising:

[0005] A base, the top of which is fixedly connected to an operating table, and the top of which is provided with an extrusion mechanism, a molding mechanism and a driving mechanism for the mold;

[0006] The molding mechanism includes a first mold and a second mold, a second connecting plate is fixedly connected to one side of the second mold, the first mold and the second mold are arranged corresponding to each other, a trigger mechanism and an injection mechanism are arranged on the inner side of the second connecting plate, and a cooling mechanism is arranged on the inner side of the first mold.

[0007] Preferably, the trigger mechanism includes an extrusion rod and a slider, the slider is fixedly connected to one side of the extrusion rod, an inner groove is provided on the inner side of the second connecting plate, and the slider and the extrusion rod are both slidably connected to the inner side of the inner groove.

[0008] Preferably, a first spring is provided on the inner side of the inner groove, one end of the first spring is fixedly connected to the inner side of the inner groove, the other end of the first spring is fixedly connected to one side of the slider, guide rods are provided at both ends of the inner side of the inner groove, and the guide rods are slidably connected to the inner side of the slider.

[0009] Preferably, the jet mechanism includes an air intake pipe and an air guide pipe, one end of the air intake pipe is arranged on the outside of the second connecting plate, the air guide pipe is connected to the air intake pipe, and two air guide pipes are provided and are respectively connected to the top end and the bottom end of the inner groove.

[0010] Preferably, the cooling mechanism comprises a connecting pipe and an air outlet pipe, the connecting pipe and the air outlet pipe are connected to each other, a forming groove is provided on the inner side of the first mold, and the connecting pipe is provided on the outer side of the forming groove.

[0011] Preferably, an inner mold is provided on the outer side of the first mold, a mold groove is provided on the inner side of the second mold, the mold groove and the second mold are arranged corresponding to each other, a groove is provided on the inner side of the second connecting plate, a second limit plate is provided on the inner side of the groove, side limit blocks are provided at both ends of the second limit plate, the limit plate and the inner mold are arranged corresponding to each other, air outlets are provided on the top and bottom ends of the first mold, air inlets are evenly provided on one side of the first mold, the air inlets are evenly provided on the outer side of the forming groove, the air inlets and the connecting pipes are arranged corresponding to each other, the air outlets and the air outlet pipes are arranged corresponding to each other, positioning rods are provided on the upper and lower ends of the first mold, the positioning rods are fixedly connected to one side of the first connecting plate, a positioning groove is provided on the inner side of the second mold, and the positioning rods are provided on the inner side of the positioning groove.

[0012] Preferably, the extrusion mechanism includes an extruder, a feed port is provided at the top of the extruder, a drive motor is provided on one side of the extruder, an extrusion tube is provided on the other side of the extruder, an injection tube is provided at the other end of the extrusion tube, the injection tube is provided on the inner side of the second connecting plate and is interconnected with the mold groove, the driving mechanism of the mold includes a hydraulic cylinder, a first limit plate is provided on the outer side of the output end of the hydraulic cylinder, a pressure plate is fixedly connected to the output end of the hydraulic cylinder, the other side of the pressure plate is interconnected with the first connecting plate, and the pressure plate is slidably connected to the top of the operating table.

[0013] Preferably, the inner side is provided with a trigger head, second springs are provided on both sides of the trigger head, a third connecting plate is provided at the bottom end of the second spring, a triangular block is fixedly connected to the bottom end of the third connecting plate, clamping blocks are fixedly connected on both sides of the third connecting plate, sliding grooves are provided on both sides of the inner groove body, and the clamping block is slidably connected to the inner side of the sliding groove.

[0014] An air duct is arranged on the inner side of the first mold, and a vacuum pump is arranged at the bottom end of the air duct. One end of the vacuum pump is connected to a flow pipe, and the other end of the vacuum pump is connected to a vacuum pipe. The vacuum pipe is connected to a suction cup, and the suction cup is arranged on one side of the inner mold.

[0015] An insertion rod is provided on the inner side of the airway, and a fixed block is provided on the inner side of the insertion rod. A first limiting groove and a second limiting groove are provided at both ends of the inner side of the insertion rod. Guide blocks are fixedly connected at both ends of the fixed block. The guide block is slidably connected to the inner side of the first limiting groove. The bottom end of the fixed block is fixedly connected to a limiting ring and an insertion block. The limiting ring is slidably provided on the inner side of the second limiting groove, and the insertion block is provided on the inner side of the exhaust pipe.

[0016] Technical effects and advantages of the present invention:

[0017] (1) The present invention provides a trigger mechanism on the inner side of the second connecting plate. When the first mold is inserted into the inner side of the mold groove, the side of the first mold squeezes the extrusion rod into the inner side of the inner groove. After the slider slides to the rear side of the air guide pipe, the air intake pipe discharges cold gas from the air guide pipe into the inner side of the inner groove, and flows into the inner side of the first mold along the inner side of the inner groove, effectively cooling the plastic inside the first mold during molding, and effectively improving the molding speed.

[0018] (2) The present invention provides a connecting pipe on the inner side of the first mold, and the connecting pipe is completely provided on the outer circumference of the molding groove, so that the plastic can be effectively cooled during the plastic molding. An air outlet pipe is provided on the rear side of the connecting pipe, and the air outlet pipe is respectively connected with the air outlets provided at the top and bottom of the first mold, so that the gas can be directly discharged effectively, thereby effectively completing the cooling of the plastic.

[0019] (3) The present invention adopts the setting of a hydraulic cylinder, wherein the output end of the hydraulic cylinder is fixedly connected with a pressure plate, and a limit plate is arranged on the outer side of the output end of the hydraulic cylinder, which can effectively limit the output end of the hydraulic cylinder. The pressure plate is fixedly connected to one side of the first connecting plate, and the pressure plate is slidably connected to the top of the operating table, which can effectively improve the movement stability of the first connecting plate. The setting of the hydraulic cylinder can effectively improve the movement speed of the first connecting plate, so that the finished plastic product can be taken quickly and conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the internal structure of the second connecting plate and the second mold in the present invention.

[0022] Figure 3 for Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0023] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point B.

[0024] Figure 5 It is a schematic diagram of the internal structure of the first mold in the present invention.

[0025] Figure 6 It is a schematic diagram of the main structure of the first mold in the present invention.

[0026] Figure 7 for Figure 5 Schematic diagram of the enlarged structure at point C in the middle.

[0027] Figure 8 for Figure 2 Schematic diagram of the structure enlarged at point D in the middle.

[0028] In the figure: base 1; operating table 11; hydraulic cylinder 2; first limit plate 21; pressing plate 22; first connecting plate 3; first mold 31; molding groove 311; inner mold 312; connecting pipe 313; air outlet pipe 314; air inlet 315; air outlet 316; airway 317; air pump 318; circulation pipe 3181; air pump 3182; positioning rod 32; second connecting plate 4; second mold 41; positioning groove 411; mold groove 412; second limit plate 42; side limit block 421; inner groove 43; slider 431; extrusion rod 4 32; sealing rubber 433; guide rod 434; first spring 435; inner groove 436; trigger head 4361; second spring 4362; slide groove 4363; third connecting plate 4364; block 4365; triangular block 4366; air inlet pipe 44; air guide pipe 441; groove 45; extruder 5; drive motor 51; feed port 52; extrusion tube 53; injection tube 531; insertion rod 6; fixing block 61; first limiting groove 611; guide block 612; second limiting groove 613; limiting ring 614; insertion block 615; suction cup 7. DETAILED DESCRIPTION

[0029] 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.

[0030] The present invention provides Figure 1-6 The plastic molding device for refrigerator shelf trim shown in the figure comprises a base 1, the top of the base 1 is fixedly connected to an operating table 11, and the top of the operating table 11 is provided with an extrusion mechanism, a molding mechanism and a mold driving mechanism;

[0031] The molding mechanism includes a first mold 31 and a second mold 41. A second connecting plate 4 is fixedly connected to one side of the second mold 41. The first mold 31 and the second mold 41 are arranged corresponding to each other. A trigger mechanism and an air jet mechanism are arranged on the inner side of the second connecting plate 4. A cooling mechanism is arranged on the inner side of the first mold 31. By arranging a trigger mechanism on the inner side of the second connecting plate 4, the first mold 31 is inserted into the inner side of the mold groove 412, and the side of the first mold 31 squeezes the extrusion rod 432 into the inner side of the inner groove 43. After the slider 431 slides to the rear side of the air guide pipe 441, the air inlet pipe 44 discharges the cold gas from the air guide pipe 441 into the inner side of the inner groove 43, and flows into the inner side of the first mold 31 along the inner side of the inner groove 43, so as to effectively cool the plastic on the inner side of the first mold 31 during molding, thereby effectively improving the molding speed.

[0032] The trigger mechanism includes an extrusion rod 432 and a slider 431, wherein the slider 431 is fixedly connected to one side of the extrusion rod 432, an inner groove 43 is provided on the inner side of the second connecting plate 4, the slider 431 and the extrusion rod 432 are both slidably connected to the inner side of the inner groove 43, a first spring 435 is provided on the inner side of the inner groove 43, one end of the first spring 435 is fixedly connected to the inner side of the inner groove 43, the other end of the first spring 435 is fixedly connected to one side of the slider 431, and guide rods 434 are provided at both ends of the inner side of the inner groove 43, the guide rod 434 is slidably connected to the inner side of the slider 431, and the guide rod 434 is slidably connected to the inner side of the slider 431. A first spring 435 is provided on the inner side of the inner groove 43, which can effectively drive the slider 431 to move. When the squeezing rod 432 is squeezed, the first spring 435 is compressed. After the first spring 435 is released, the first spring 435 drives the slider 431 to move and squeeze the slider 431. By providing the squeezing rod 432, the squeezing rod 432 is squeezed by the first mold 31 and enters the inner side of the inner groove 43. After the slider 431 moves to the right side of the air guide tube 441, the jet can be triggered. After the slider 431 moves to the left side of the air guide tube 441, the inner groove 43 can be sealed.

[0033] The jet mechanism includes an air inlet pipe 44 and an air guide pipe 441. One end of the air inlet pipe 44 is arranged on the outside of the second connecting plate 4. The air guide pipe 441 is connected to the air inlet pipe 44. Two air guide pipes 441 are provided and are respectively connected to the top and bottom ends of the inner groove 43. The cooling mechanism includes a connecting pipe 313 and an air outlet pipe 314. The connecting pipe 313 and the air outlet pipe 314 are connected to each other. A forming groove 311 is arranged on the inside of the first mold 31. The connecting pipe 313 is arranged on the outside of the forming groove 311. By arranging the air inlet pipe 44, the air inlet pipe 44 is connected to the external cooling fan, so that cold air can be easily introduced into the air inlet pipe 44. By arranging the air guide pipe 441 at the end of the air inlet pipe 44, the air guide pipe 441 is connected to the inner side of the inner groove 43. After the first mold 31 is squeezed into the inner side of the inner groove 43, the slider 431 is squeezed and moved to the right side of the connection between the air guide pipe 441 and the inner groove 43, and the cold air will enter the inner side of the inner groove 43 along the air guide pipe 441, and flow into the inner side of the connecting pipe 313 along the inner groove 43. The slider 431 is arranged on the outer side of the molding groove 311, and can effectively cool the finished plastic product inside the molding groove 311. After the first mold 31 slides out from the inner side of the mold groove 412, the slider 431 is driven by the first spring 435 and slides to the left side of the air guide pipe 441. The arrangement of the slider 431 and the sealing rubber 433 can effectively completely seal the inner groove 43, so that the cold air cannot go out. By arranging the air outlet pipe 314, the airflow that has completed the cooling work can be effectively discharged from both sides of the first mold 31.

[0034] An inner mold 312 is arranged on the outer side of the first mold 31, a mold groove 412 is arranged on the inner side of the second mold 41, and the mold groove 412 and the first mold 31 are arranged correspondingly to each other, a groove 45 is arranged on the inner side of the second connecting plate 4, and a second limiting plate 42 is arranged on the inner side of the groove 45, and side limiting blocks 421 are arranged at both ends of the second limiting plate 42, and the second limiting plate 42 and the inner mold 312 are arranged correspondingly to each other, and the top and bottom ends of the first mold 31 are both provided with air outlets 316, and one side of the first mold 31 is evenly provided with air inlets 316. 15, the air inlet 315 is evenly arranged on the outside of the forming groove 311, the air inlet 315 and the connecting pipe 313 are arranged correspondingly, and the air outlet 316 and the air outlet pipe 314 are arranged correspondingly. By arranging the air outlet 316 at the top and bottom of the first mold 31, the air outlet 316 and the air outlet pipe 314 are connected to each other, and the cooled hot air can be effectively discharged from the air outlet pipe 314. By arranging the inner mold 312 on the outside of the forming groove 311, the inner side of the second connecting plate 4 is provided with a groove 45, and the inner side of the groove 45 A second limiting plate 42 is provided, and the second limiting plate 42 and the inner mold 312 are arranged correspondingly to each other, so that the second limiting plate 42 can be clamped on the inner side of the inner mold 312, effectively improving the sealing of the molding groove 311 on the inner side of the first mold 31, and by providing a side limiting block 421, the side limiting block 421 is arranged on the outer side of the first mold 31 to effectively limit the first mold 31, so that the first mold 31 will not be completely and tightly fitted with the second connecting plate 4, so that a gap is left between the first mold 31 and the second connecting plate 4, which is convenient for Cold air enters the inner side of the first mold 31 to cool down the finished plastic product. By setting the air inlet 315, the air inlet 315 is connected with the connecting pipe 313, so that after the first mold 31 is set on the inner side of the mold groove 412, the first mold 31 squeezes the extrusion rod 432, and the cold air is discharged from the inner groove 43, enters the air inlet 315, and surrounds the outer side of the molding groove 311 along the connecting pipe 313, which can effectively cool the finished plastic product inside the molding groove 311, and effectively improve the cooling efficiency;

[0035] The first mold 31 is provided with positioning rods 32 at both upper and lower ends, and the positioning rods 32 are fixedly connected to one side of the first connecting plate 3. The inner side of the second mold 41 is provided with a positioning groove 411, and the positioning rods 32 are arranged inside the positioning groove 411. By fixing the positioning rods 32 on one side of the first connecting plate 3, the positioning rods 32 and the positioning grooves 411 are arranged correspondingly to each other, which can effectively play a positioning effect on the first connecting plate 3 and improve the fit between the molds.

[0036] The extrusion mechanism includes an extruder 5, a feed port 52 is provided at the top of the extruder 5, a drive motor 51 is provided on one side of the extruder 5, an extrusion tube 53 is provided on the other side of the extruder 5, and an injection tube 531 is provided at the other end of the extrusion tube 53. The injection tube 531 is provided on the inner side of the second connecting plate 4 and is communicated with the die groove 412. By providing the feed port 52 at the top of the extruder 5, the feed port 52 and the extruder 5 are communicated with each other, so that the raw materials for plastic molding are conveniently put into the inner side of the extruder 5 from the feed port 52. The drive motor 51 can effectively drive the extrusion rod provided inside the extruder 5 to rotate. The extrusion rod also exists on the inner side of the extrusion tube 53, and can effectively squeeze the plastic raw materials inside the extruder 5 from the extrusion tube 53 into the injection tube 531. The injection tube 531 is communicated with the inner side of the die groove 412. After the first mold 31 is inserted into the inner side of the die groove 412, the raw materials in the injection tube 531 will be squeezed into the inner side of the molding groove 311 for plastic molding.

[0037] The driving mechanism of the mold includes a hydraulic cylinder 2, a first limiting plate 21 is provided on the outer side of the output end of the hydraulic cylinder 2, a pressing plate 22 is fixedly connected to the output end of the hydraulic cylinder 2, the other side of the pressing plate 22 is mutually connected to the first connecting plate 3, and the pressing plate 22 is slidably connected to the top of the operating table 11. Through the setting of the hydraulic cylinder 2, the output end of the hydraulic cylinder 2 is fixedly connected to the pressing plate 22, and a first limiting plate 21 is provided on the outer side of the output end of the hydraulic cylinder 2, which can effectively limit the output end of the hydraulic cylinder 2, the pressing plate 22 is fixedly connected to one side of the first connecting plate 3, and the pressing plate 22 is slidably connected to the top of the operating table 11, which can effectively improve the moving stability of the first connecting plate 3. Through the setting of the hydraulic cylinder 2, the moving speed of the first connecting plate 3 can be effectively improved, so that the finished plastic product can be taken quickly and conveniently;

[0038] 43 is provided with 431 on the inner side of 431, and a trigger head 4361 is provided on the inner side of 431. Second springs 4362 are provided on both sides of the trigger head 4361. A third connecting plate 4364 is provided at the bottom end of the second spring 4362. A triangular block 4366 is fixedly connected to the bottom end of the third connecting plate 4364. Blocks 4365 are fixedly connected to both sides of the third connecting plate 4364. Slide grooves 4363 are provided on both sides of the inner groove body 436. The block 4365 is slidably connected to the slide grooves 436 3, by setting a trigger head 4361 on the inner side of 43, when 431 slides on the inner side of 43 and slides to the inner groove body 436, 431 will squeeze the triangular block 4366 to the inner side of the inner groove body 436, and squeeze the third connecting plate 4364 to the trigger head 4361, triggering the trigger head 4361, and the trigger head 4361 and the air cooler arranged outside are electrically connected, and when the triangular block 4366 touches the trigger head 4361, the air cooler starts to start jetting;

[0039] An air channel 317 is provided on the inner side of the first mold 31, and an air pump 318 is provided on the bottom end of the air channel 317. One end of the air pump 318 is connected to a flow pipe 3181, and the other end of the air pump 318 is connected to an air pump pipe 3182. The air pump pipe 3182 is connected to a suction cup 7. The suction cup 7 is provided on one side of the inner mold 312. An insertion rod 6 is provided on the inner side of the air channel 317, and a fixing block 61 is provided on the inner side of the insertion rod 6. The inner ends of the insertion rod 6 are provided with a second A limiting groove 611 and a second limiting groove 613 are provided, and both ends of the fixed block 61 are fixedly connected with a guide block 612, and the guide block 612 is slidably connected to the inner side of the first limiting groove 611, and the bottom end of the fixed block 61 is fixedly connected with a limiting ring 614 and an insert block 615, and the limiting ring 614 is slidably arranged on the inner side of the second limiting groove 613, and the insert block 615 is arranged on the inner side of the exhaust pipe 3182, and the exhaust fan 318 and the suction cup 7 are mutually connected. The inner mold 312 is connected and can be effectively fixed. The circulation pipe 3181 is used for the outflow of gas. By setting an airway 317 at the top of the vacuum pump 318, the insertion rod 6 can be pulled on the inner side of the airway 317. A fixing block 61 is set on the inner side of the insertion rod 6. First limiting grooves 611 are set at both ends so that the fixing block 61 can slide stably on the inner side of the insertion rod 6, and when the insertion rod 6 is pulled upward, the fixing block 61 can be effectively driven to move, that is, the insertion block 615 set below is driven to move. The bottom end of the fixed block 61 is provided with an insertion block 615. When the vacuum pump 318 is evacuating, the insertion block 615 can be effectively set on the inner side of the exhaust pipe 3182, so that the exhaust pipe 3182 is effectively sealed. When deflation is needed, it is only necessary to pull the insertion rod 6 to remove the insertion block 615 from the inner side of the exhaust pipe 3182, which effectively plays the role of deflation and facilitates the fixation and installation of the inner mold 312.

[0040] The working principle of the present invention is as follows: when in use, a trigger mechanism is provided on the inner side of the second connecting plate 4, the first mold 31 is inserted into the inner side of the mold groove 412, and the side of the first mold 31 squeezes the extrusion rod 432 into the inner side of the inner groove 43, and after the slider 431 slides to the rear side of the air guide pipe 441, the air inlet pipe 44 discharges the cold gas from the air guide pipe 441 into the inner side of the inner groove 43, and flows into the inner side of the first mold 31 along the inner side of the inner groove 43, effectively cooling the plastic inside the first mold 31 during molding, and effectively improving the molding speed, and by providing a first spring 435 on the inner side of the inner groove 43, the slider 431 can be effectively driven to move, and when the extrusion rod 432 is squeezed, the first spring 435 is compressed, and the first spring 435 is released. After the spring 435 is released, the first spring 435 will drive the slider 431 to move and squeeze the slider 431. By setting the squeezing rod 432, the squeezing rod 432 will enter the inner side of the inner groove 43 after being squeezed by the first mold 31. After the slider 431 moves to the right side of the air guide pipe 441, the jet can be triggered, and after the slider 431 moves to the left side of the air guide pipe 441, the inner groove 43 can be sealed. By setting an air guide pipe 441 at the end of the air inlet pipe 44, the air guide pipe 441 and the inner side of the inner groove 43 are connected to each other. After the squeezing rod 432 is squeezed to the inner side of the inner groove 43, the slider 431 is squeezed and moved to the right side of the connection between the air guide pipe 441 and the inner groove 43, the cold air will enter the inner side of the inner groove 43 along the air guide pipe 441, and along the inner groove 4 3 flows into the inner side of the connecting pipe 313 and is arranged on the outer side of the molding groove 311, which can effectively cool down the finished plastic product inside the molding groove 311. After the first mold 31 slides out from the inner side of the mold groove 412, the slider 431 is driven by the first spring 435 to slide to the left side of the air guide pipe 441. The arrangement of the slider 431 and the sealing rubber 433 can effectively seal the inner groove 43 completely, so that the cold air cannot escape. By arranging the air outlet pipe 314, the airflow that has completed the cooling work can be effectively discharged from both sides of the first mold 31. By arranging the inner mold 312 on the outer side of the molding groove 311, the inner side of the second connecting plate 4 is provided with a groove 45, and the inner side of the groove 45 is provided with a second limiting plate 42, and the second limiting plate 42 and the inner mold 312 are mutually The corresponding arrangement enables the second limiting plate 42 to be snapped onto the inner side of the inner mold 312, effectively improving the sealing performance of the molding groove 311 on the inner side of the first mold 31. By setting the side limiting block 421, the side limiting block 421 is arranged on the outer side of the first mold 31 to effectively limit the first mold 31, so that the first mold 31 will not be completely and tightly fitted with the second connecting plate 4, so that a gap is left between the first mold 31 and the second connecting plate 4, which facilitates the entry of cold air into the inner side of the first mold 31 to cool the finished plastic product. By setting the air outlet 316 at the top and bottom ends of the first mold 31, the air outlet 316 is communicated with the air outlet pipe 314, so that the cooled hot air can be effectively discharged from the air outlet pipe 314. By setting the air inlet 315,The air inlet 315 is connected to the connecting pipe 313, so that after the first mold 31 is set on the inner side of the mold groove 412, the first mold 31 is squeezed by the extrusion rod 432, and the cold air is discharged from the inner groove 43, enters the air inlet 315, and surrounds the outer side of the molding groove 311 along the connecting pipe 313, which can effectively cool the plastic product inside the molding groove 311, effectively improving the cooling efficiency. By fixing a positioning rod 32 on one side of the first connecting plate 3, the positioning rod 32 and the positioning groove 411 are arranged corresponding to each other, which can effectively cool the first connecting plate 3. The positioning effect of the connecting plate 3 improves the fit between the molds. A feed port 52 is provided at the top of the extruder 5. The feed port 52 is connected to the extruder 5, so that the raw materials for plastic molding are conveniently fed from the feed port 52 to the inner side of the extruder 5. The driving motor 51 can effectively drive the extrusion rod provided inside the extruder 5 to rotate. The extrusion rod also exists on the inner side of the extrusion tube 53, so that the plastic raw materials inside the extruder 5 can be effectively squeezed from the extrusion tube 53 into the inside of the injection tube 531. The injection tube 531 is connected to the inner side of the mold groove 412. After the first mold 31 is inserted into the inner side of the mold groove 412, the raw material in the injection tube 531 will be squeezed into the inner side of the molding groove 311 for plastic molding. Through the setting of the hydraulic cylinder 2, the output end of the hydraulic cylinder 2 is fixedly connected with a pressure plate 22, and a first limiting plate 21 is set on the outer side of the output end of the hydraulic cylinder 2, which can effectively limit the output end of the hydraulic cylinder 2. The pressure plate 22 is fixedly connected to one side of the first connecting plate 3, and the pressure plate 22 is slidably connected to the top of the operating table 11, which can effectively improve the moving stability of the first connecting plate 3. Through the setting of the hydraulic cylinder 2 It can effectively improve the moving speed of the first connecting plate 3, and facilitate the quick picking of plastic products. By setting a trigger head 4361 on the inner side of 43, when 431 slides on the inner side of 43 and slides to the inner groove 436, 431 will squeeze the triangular block 4366 to the inner side of the inner groove 436, and squeeze the third connecting plate 4364 to the trigger head 4361, triggering the trigger head 4361. The trigger head 4361 and the externally set cold air machine are electrically connected. When the triangular block 4366 touches the trigger head 4361, the cold air machine starts to jet.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Plastic molding equipment for refrigerator shelf trims, including: A base (1), the top of the base (1) being fixedly connected to an operating table (11), the top of the operating table (11) being provided with an extrusion mechanism, a molding mechanism and a driving mechanism for a mold; The invention is characterized in that: the molding mechanism comprises a first mold (31) and a second mold (41); one side of the second mold (41) is fixedly connected to a second connecting plate (4); the first mold (31) and the second mold (41) are arranged corresponding to each other; the inner side of the second connecting plate (4) is provided with a trigger mechanism and an air injection mechanism; the inner side of the first mold (31) is provided with a cooling mechanism; the trigger mechanism comprises an extrusion rod (432) and a slider (431); the slider (431) is fixedly connected to one side of the extrusion rod (432); the inner side of the second connecting plate (4) is provided with an inner groove (43); the slider (431) and the extrusion rod (432) are both slidably connected to the inner side of the inner groove (43); the inner side of the inner groove (43) is provided with a first spring (435); one end of the first spring (435) is fixedly connected to the inner side of the inner groove (43); side, the other end of the first spring (435) is fixedly connected to one side of the slider (431), both ends of the inner side of the inner groove (43) are provided with guide rods (434), and the guide rods (434) are slidably connected to the inner side of the slider (431); the jet mechanism comprises an air inlet pipe (44) and an air guide pipe (441), one end of the air inlet pipe (44) is provided on the outer side of the second connecting plate (4), the air guide pipe (441) and the air inlet pipe (44) are communicated with each other, and two air guide pipes (441) are provided and are respectively communicated with the top end and the bottom end of the inner groove (43); the cooling mechanism comprises a connecting pipe (313) and an air outlet pipe (314), the connecting pipe (313) and the air outlet pipe (314) are communicated with each other, a molding groove (311) is provided on the inner side of the first mold (31), and the connecting pipe (313) is provided on the outer side of the molding groove (311); An inner mold (312) is arranged on the outer side of the first mold (31), a mold groove (412) is arranged on the inner side of the second mold (41), the mold groove (412) and the first mold (31) are arranged correspondingly to each other, a groove (45) is arranged on the inner side of the second connecting plate (4), a second limit plate (42) is arranged on the inner side of the groove (45), side limit blocks (421) are arranged at both ends of the second limit plate (42), the second limit plate (42) and the inner mold (312) are arranged correspondingly to each other, and air outlets (316) are arranged at the top and bottom ends of the first mold (31). An air inlet (315) is evenly arranged on one side of the first mold (31), and the air inlet (315) is evenly arranged on the outside of the molding groove (311). The air inlet (315) and the connecting pipe (313) are arranged corresponding to each other, and the air outlet (316) and the air outlet pipe (314) are arranged corresponding to each other. Positioning rods (32) are arranged at both upper and lower ends of the first mold (31), and the positioning rods (32) are fixedly connected to one side of the first connecting plate (3). A positioning groove (411) is arranged on the inner side of the second mold (41), and the positioning rod (32) is arranged on the inner side of the positioning groove (411); An inner groove body (436) is provided on the inner side of the inner groove (43), a trigger head (4361) is provided on the inner side of the inner groove body (436), second springs (4362) are provided on both sides of the trigger head (4361), a third connecting plate (4364) is provided at the bottom end of the second spring (4362), a triangular block (4366) is fixedly connected to the bottom end of the third connecting plate (4364), a clamping block (4365) is fixedly connected to both sides of the third connecting plate (4364), a slide groove (4363) is provided on both sides of the inner groove body (436), and the clamping block (4365) is slidably connected to the inner side of the slide groove (4363).

2. The plastic molding equipment for refrigerator shelf trim according to claim 1, characterized in that: The extrusion mechanism comprises an extruder (5), a feed port (52) is arranged at the top end of the extruder (5), a drive motor (51) is arranged on one side of the extruder (5), an extrusion tube (53) is arranged on the other side of the extruder (5), an injection tube (531) is arranged at the other end of the extrusion tube (53), the injection tube (531) is arranged on the inner side of the second connecting plate (4) and is interconnected with the die groove (412), and the driving mechanism of the mold comprises a hydraulic cylinder (2), a first limit plate (21) is arranged on the outer side of the output end of the hydraulic cylinder (2), a pressing plate (22) is fixedly connected to the output end of the hydraulic cylinder (2), the other side of the pressing plate (22) is interconnected with the first connecting plate (3), and the pressing plate (22) is slidably connected to the top end of the operating table (11).

3. The plastic molding equipment for refrigerator shelf trim strips according to claim 1, characterized in that: An air duct (317) is arranged on the inner side of the first mould (31), and an air pump (318) is arranged at the bottom end of the air duct (317). One end of the air pump (318) is connected to a flow pipe (3181), and the other end of the air pump (318) is connected to an air pump pipe (3182). The air pump pipe (3182) is connected to a suction cup (7), and the suction cup (7) is arranged on one side of the inner mould (312).

4. The plastic molding equipment for refrigerator shelf trim according to claim 3, characterized in that: An insert rod (6) is arranged on the inner side of the air passage (317), a fixed block (61) is arranged on the inner side of the insert rod (6), a first limiting groove (611) and a second limiting groove (613) are arranged at both ends of the inner side of the insert rod (6), guide blocks (612) are fixedly connected to both ends of the fixed block (61), the guide blocks (612) are slidably connected to the inner side of the first limiting groove (611), a limiting ring (614) and an insert block (615) are fixedly connected to the bottom end of the fixed block (61), the limiting ring (614) is slidably arranged on the inner side of the second limiting groove (613), and the insert block (615) is arranged on the inner side of the exhaust pipe (3182).

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