Continuous injection molding device for ice receiving box in refrigerator

Abstract

The invention discloses a continuous injection molding device for an ice receiving box in a refrigerator, and belongs to the technical field of injection molding machining, the continuous injection molding device comprises an injection molding mechanism used for carrying out injection molding on the ice receiving box, and the injection molding mechanism is provided with a pretreatment mechanism used for cleaning and melting injection molding raw materials and a mold mechanism used for conveying a mold; the injection molding mechanism can automatically complete butt joint of an injection molding barrel and an injection molding pipe, molten plastic liquid is injected between the upper mold and the lower mold, automatic injection molding is achieved, and the automation degree is high; the pretreatment mechanism can be used for cleaning and melting plastic raw materials, the quality of the plastic raw materials is improved, then molten plastic is conveyed into a temporary storage cavity, and continuity is good; the actions of raw material cleaning, melting, transferring, injection molding and the like are fully automatically and synchronously carried out, meanwhile, the upper mold and the lower mold are continuously conveyed, continuous machining is achieved, and using is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding processing, and particularly relates to a continuous injection molding device for an ice receiving box inside a refrigerator. Background Art

[0002] An ice receiving box is a container for a refrigerator with an ice making function. With the improvement of people's living standards, the demand for refrigerators in daily life is also increasing. From the most basic refrigeration and freezing, to later freshness preservation and moisture retention, and then to rapid cooling and ice making. Since the ice receiving box of the same model of refrigerator usually has a certain size, the ice receiving box is mainly processed by injection molding. As a plastic product, common plastic particles are used as raw materials. After melting the raw materials, they are injection molded, and finally the finished product is obtained through cutting and shaping. The existing ice receiving box injection molding devices usually cannot achieve automatic melting and continuous injection of raw materials, with poor automation and unable to meet the huge processing demand. Summary of the Invention

[0003] For the above technical problems, the technical solution adopted by the present invention is: a continuous injection molding device for an ice receiving box inside a refrigerator, including an injection molding mechanism for injecting the ice receiving box. The injection molding mechanism includes an injection molding box. A pretreatment mechanism for cleaning and melting the injection molding raw materials and a mold mechanism for transporting the mold are provided on the injection molding mechanism. The mold mechanism includes a mold rack. The injection molding mechanism includes an injection molding cylinder slidably mounted on the injection molding box. An internally threaded cylinder is rotatably mounted on the mold rack. A central gear is fixedly mounted on the internally threaded cylinder. An inner column is slidably mounted inside the internally threaded cylinder. An inner convex ball is fixedly mounted on the inner column. A double - thread internal thread is provided inside the internally threaded cylinder. The inner convex ball slides in the double - thread internal thread. An inner push plate is fixedly mounted below the inner column. The inner push plate slides along the inner wall of the injection molding cylinder.

[0004] Further, the injection molding mechanism further includes a column fixedly mounted on the inner push plate. The column is slidably mounted with the injection molding cylinder. A lower pressing plate is fixedly mounted on the column. A lower push plate is slidably mounted on the column. A compression spring is provided between the lower push plate and the lower pressing plate. The injection molding cylinder is slidably mounted with the mold rack. The lower push plate and the injection molding cylinder are fixedly mounted.

[0005] Further, a partition rack is fixedly mounted inside the injection molding cylinder. An inner cylinder is slidably mounted on the partition rack. A one - way plate is fixedly mounted on the inner cylinder. A one - way spring is provided between the inner cylinder and the partition rack. A lower pressing column is slidably mounted inside the inner cylinder. An inner spring is provided between the lower pressing column and the inner cylinder.

[0006] Further, a pump is fixedly mounted on the injection molding box. The pump is communicated with the injection molding cylinder through a pump pipe. A closing plate is slidably mounted on the injection molding cylinder. A closing spring is provided between the closing plate and the lower pressing plate.

[0007] The pump extracts the plastic liquid in the temporary storage cavity and pumps it into the injection barrel through the pump pipe. The central gear rotates to drive the internal thread barrel to rotate, and the internal convex ball and the internal column descend through the double - headed internal thread, thereby driving the lower push plate to descend through the compression spring, and then pushing the injection barrel to slide downward along the injection box and the mold rack, inserting the injection barrel into the injection pipe. When the lower push plate and the injection barrel can no longer descend, the inner push plate and the lower pressure plate continue to descend. The lower pressure plate pushes the closing plate to descend through the closing spring, closing the pump pipe. After the pump pipe is closed, the lower pressure plate continues to descend, the closing spring is compressed, the inner push plate descends to push the plastic liquid in the injection barrel downward, pushing the one - way plate downward, the one - way spring is compressed, the one - way plate no longer closes the partition frame, and the plastic liquid flows from the partition frame into the injection pipe. As the inner push plate continues to descend, the inner push plate contacts the lower pressure column, driving the lower pressure column to descend, and pushing the one - way plate downward through the inner spring, pushing all the plastic liquid in the injection barrel into the injection pipe. Under the action of the double - headed internal thread, when the inner push plate descends to the lowest position, it starts to rise and reset.

[0008] Further, the pretreatment mechanism includes a melting box fixedly installed on the injection box. A cleaning box is fixedly installed on the melting box. A turning leaf is rotatably installed in the cleaning box. A number of holes are provided on the turning leaf. The cleaning box is filled with clean water. An inner hole plate is fixedly installed in the cleaning box, and a number of holes are provided on the inner hole plate. A heating plate is fixedly installed in the melting box, and a number of protrusions are provided on the heating plate. An upper gear is rotatably installed on the injection box. A motor is arranged beside the cleaning box, and the motor drives the turning leaf and the upper gear to rotate through gear transmission and belt transmission.

[0009] Further, a temporary storage cavity is arranged in the injection box. A lifting support is slidably installed in the injection box. A double - headed threaded rod is fixedly installed on the lifting support. An upper convex ball is arranged in the upper gear, and the upper convex ball slides in the double - headed thread of the double - headed threaded rod.

[0010] Further, two blocking plates are slidably installed on the melting box. A fixed column is fixedly installed in the injection box. An outer frame is fixedly installed on the blocking plate. An outer slider is fixedly installed on the outer frame. An outer spring is arranged between the outer frame and the injection box. A chute rod is rotatably installed on the outer slider. A chute is provided on the chute rod, and the fixed column slides in the chute of the chute rod.

[0011] The motor drives the flipping blade and the upper gear to rotate through gear transmission and belt transmission. Plastic raw materials are put into the cleaning tank, and the plastic falls into the inner hole plate and then into the water. The flipping blade rotates to stir the plastic into the melting tank and onto the heating plate. The raised parts on the heating plate block the cleaned plastic, and the heating plate generates heat to heat and melt the plastic. The melted plastic flows along the heating plate into the lifting support. The upper gear rotates to drive the bidirectional threaded rod and the lifting support to rise through the upper convex ball. As the lifting support rises, the outer spring that was originally in a compressed state rebounds, and the outer slider, outer frame, and baffle slide inward. The melting tank is closed by the baffle, so that after the lifting support rises, the plastic liquid in the melting tank will not enter the injection molding box. When the lifting support rises to the entrance of the temporary storage cavity, the plastic liquid in the lifting support flows into the temporary storage cavity. When the lifting support rises to the highest point, the upper gear continues to rotate to drive the lifting support to descend to the lowest position. The lifting support drives the chute rod to rotate, and the outer frame, outer slider, and baffle move outward, stretching the outer spring to open the baffle.

[0012] Further, the mold mechanism includes an electric cylinder fixedly installed on the mold frame. A number of rollers are rotatably installed on the mold frame, and a number of lower molds are slidably installed on the mold frame. An upper mold is arranged on the lower mold, and an injection molding pipe is fixedly installed on the upper mold.

[0013] The plastic raw materials are injected between the upper mold and the lower mold through the injection molding pipe. The electric cylinder extends to push the lower mold and the upper mold to slide on the rollers for mold switching.

[0014] The beneficial effects of the present invention compared with the prior art are as follows: (1) The injection molding mechanism provided by the present invention can automatically complete the docking of the injection molding barrel and the injection molding pipe and inject the melted plastic liquid between the upper mold and the lower mold to achieve automatic injection molding with a high degree of automation; (2) The pre-treatment mechanism provided by the present invention can clean and melt the plastic raw materials, improve the quality of the plastic raw materials, and then transport the melted plastic to the temporary storage cavity with good continuity; (3) The actions such as raw material cleaning, melting, transfer, and injection molding of the present invention are fully automatic and synchronous, and at the same time, the upper mold and the lower mold are continuously conveyed to achieve continuous processing, which is convenient to use. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of the injection molding mechanism of the present invention Figure 1 .

[0017] Figure 3 It is a schematic diagram of the structure of the injection molding mechanism of the present invention Figure 2 .

[0018] Figure 4 It is a schematic diagram of the structure of the injection molding mechanism of the present inventionFigure 3 。

[0019] Figure 5 Structural schematic of the injection molding mechanism of the present invention Figure 4 。

[0020] Figure 6 Structural schematic of the pretreatment mechanism of the present invention Figure 1 。

[0021] Figure 7 Structural schematic of the pretreatment mechanism of the present invention Figure 2 。

[0022] Figure 8 Structural schematic of the pretreatment mechanism of the present invention Figure 3 。

[0023] Figure 9 Structural schematic of the pretreatment mechanism of the present invention Figure 4 。

[0024] Figure 10 Structural schematic of the pretreatment mechanism of the present invention Figure 5 Figure 11 Structural schematic of the mold mechanism of the present invention Figure 1 。

[0025] Figure 12 Structural schematic of the mold mechanism of the present invention Figure 2 。

[0026] Reference numerals in the drawings: 101 - injection molding box; 102 - pump; 103 - injection barrel; 104 - pump pipe; 105 - central gear; 106 - internally threaded barrel; 107 - lower pressing plate; 108 - closing spring; 109 - closing plate; 110 - lower pushing plate; 111 - column; 112 - compression spring; 113 - inner pushing plate; 114 - partition frame; 115 - one-way plate; 116 - one-way spring; 117 - inner cylinder; 118 - inner spring; 119 - lower pressing column; 120 - inner column; 121 - inner convex ball; 122 - double - threaded internal thread; 201 - cleaning box; 202 - motor; 203 - turning blade; 204 - inner hole plate; 205 - heating plate; 206 - melting box; 207 - temporary storage cavity; 208 - upper gear; 209 - double - threaded rod; 210 - lifting support; 211 - blocking plate; 212 - outer frame; 213 - outer slider; 214 - outer spring; 215 - sliding groove rod; 216 - fixed column; 217 - upper convex ball; 301 - mold frame; 302 - electric cylinder; 303 - lower mold; 304 - upper mold; 305 - injection pipe; 306 - roller. Detailed implementation manners

[0027] The following further describes the detailed implementation manners of the present invention with reference to the accompanying drawings.

[0028] Example: Refer to Figures 1 - 12 , a continuous injection molding device for an ice storage box inside a refrigerator, comprising an injection molding mechanism for injecting the ice storage box. The injection molding mechanism includes an injection molding box 101. A pretreatment mechanism for cleaning and melting the injection molding raw material and a mold mechanism for transporting the mold are provided on the injection molding mechanism. The mold mechanism includes a mold rack 301; The injection molding mechanism includes an injection molding cylinder 103 slidably mounted on the injection molding box 101. An internally threaded cylinder 106 is rotatably mounted on the mold rack 301. A central gear 105 is fixedly mounted on the internally threaded cylinder 106. An inner column 120 is slidably mounted inside the internally threaded cylinder 106. An inner convex ball 121 is fixedly mounted on the inner column 120. A double - thread internal thread 122 is provided inside the internally threaded cylinder 106. The inner convex ball 121 slides inside the double - thread internal thread 122. An inner push plate 113 is fixedly mounted below the inner column 120. The inner push plate 113 slides along the inner wall of the injection molding cylinder 103.

[0029] As Figures 2 - 5 shown, the injection molding mechanism further includes a column 111 fixedly mounted on the inner push plate 113. The column 111 is slidably mounted with the injection molding cylinder 103. A lower pressing plate 107 is fixedly mounted on the column 111. A lower push plate 110 is slidably mounted on the column 111. A compression spring 112 is provided between the lower push plate 110 and the lower pressing plate 107. The injection molding cylinder 103 is slidably mounted with the mold rack 301. The lower push plate 110 and the injection molding cylinder 103 are fixedly mounted.

[0030] As Figures 2 - 5 shown, a partition frame 114 is fixedly mounted inside the injection molding cylinder 103. An inner cylinder 117 is slidably mounted on the partition frame 114. A one - way plate 115 is fixedly mounted on the inner cylinder 117. A one - way spring 116 is provided between the inner cylinder 117 and the partition frame 114. A lower pressing column 119 is slidably mounted inside the inner cylinder 117. An inner spring 118 is provided between the lower pressing column 119 and the inner cylinder 117.

[0031] As Figures 2 - 5 shown, a pump 102 is fixedly mounted on the injection molding box 101. The pump 102 is communicated with the injection molding cylinder 103 through a pump pipe 104. A closing plate 109 is slidably mounted on the injection molding cylinder 103. A closing spring 108 is provided between the closing plate 109 and the lower pressing plate 107.

[0032] The pump 102 pumps out the plastic liquid in the temporary storage cavity 207 and sucks it into the injection barrel 103 through the pump pipe 104. The central gear 105 rotates to drive the internal thread barrel 106 to rotate. Through the double - headed internal thread 122, the internal convex ball 121 and the internal column 120 descend, thereby driving the lower push plate 110 to descend through the compression spring 112, and then pushing the injection barrel 103 to slide downward along the injection molding box 101 and the mold frame 301, inserting the injection barrel 103 into the injection pipe 305. When the lower push plate 110 and the injection barrel 103 can no longer descend, the internal push plate 113 and the lower pressure plate 107 continue to descend. The lower pressure plate 107 pushes the closing plate 109 to descend through the closing spring 108, closing the pump pipe 104. After the pump pipe 104 is closed, the lower pressure plate 107 continues to descend, the closing spring 108 is compressed, and the internal push plate 113 descends to push the plastic liquid in the injection barrel 103 downward, pushing the one - way plate 115 downward. The one - way spring 116 is compressed, and the one - way plate 115 no longer closes the partition frame 114. The plastic liquid flows from the partition frame 114 into the injection pipe 305. As the internal push plate 113 continues to descend, the internal push plate 113 contacts the lower pressure column 119, driving the lower pressure column 119 to descend, and pushing the one - way plate 115 to descend through the internal spring 118, pushing all the plastic liquid in the injection barrel 103 into the injection pipe 305. Under the action of the double - headed internal thread 122, after the internal push plate 113 descends to the lowest position, it starts to rise and reset.

[0033] As Figures 6 - 10 shown, the pre - treatment mechanism includes a melting box 206 fixedly installed on the injection molding box 101. A cleaning box 201 is fixedly installed on the melting box 206. A turning blade 203 is rotatably installed in the cleaning box 201. A number of holes are provided on the turning blade 203. The cleaning box 201 is filled with clean water. An inner hole plate 204 is fixedly installed in the cleaning box 201. A number of holes are provided on the inner hole plate 204. A heating plate 205 is fixedly installed in the melting box 206. A number of protrusions are provided on the heating plate 205. An upper gear 208 is rotatably installed on the injection molding box 101. A motor 202 is arranged beside the cleaning box 201. The motor 202 drives the turning blade 203 and the upper gear 208 to rotate through gear transmission and belt transmission.

[0034] As Figures 6 - 10 shown, a temporary storage cavity 207 is arranged in the injection molding box 101. A lifting support 210 is slidably installed in the injection molding box 101. A double - headed threaded rod 209 is fixedly installed on the lifting support 210. An upper convex ball 217 is arranged inside the upper gear 208. The upper convex ball 217 slides in the double - headed thread of the double - headed threaded rod 209.

[0035] As Figures 6 - 10As shown, two baffle plates 211 are slidably mounted on the melting box 206. A fixed column 216 is fixedly mounted inside the injection molding box 101. An outer frame 212 is fixedly mounted on the baffle plate 211. An outer slider 213 is fixedly mounted on the outer frame 212. An outer spring 214 is provided between the outer frame 212 and the injection molding box 101. A chute rod 215 is rotatably mounted on the outer slider 213. A chute is provided on the chute rod 215, and the fixed column 216 slides in the chute of the chute rod 215.

[0036] The motor 202 drives the turning blade 203 and the upper gear 208 to rotate through gear transmission and belt transmission. Plastic raw materials are put into the cleaning box 201. The plastic falls into the inner hole plate 204 and then into the water. The turning blade 203 rotates to stir the plastic into the melting box 206 and falls onto the heating plate 205. The raised portions on the heating plate 205 block the cleaned plastic. The plastic is heated and melted by the heat generated by the heating plate 205. The melted plastic flows along the heating plate 205 into the lifting support 210. The upper gear 208 rotates, driving the two-way threaded rod 209 and the lifting support 210 to rise through the upper convex ball 217. As the lifting support 210 rises, the outer spring 214 that was originally in a compressed state rebounds, and the outer slider 213, the outer frame 212, and the baffle plate 211 slide inward, closing the melting box 206 through the baffle plate 211, so that after the lifting support 210 rises, the plastic liquid in the melting box 206 will not enter the injection molding box 101. When the lifting support 210 rises to the entrance of the temporary storage cavity 207, the plastic liquid in the lifting support 210 flows into the temporary storage cavity 207. When the lifting support 210 rises to the highest position, the upper gear 208 continues to rotate, driving the lifting support 210 to descend to the lowest position. The lifting support 210 drives the chute rod 215 to rotate, and the outer frame 212, the outer slider 213, and the baffle plate 211 move outward, stretching the outer spring 214, causing the baffle plate 211 to open.

[0037] As Figure 11 、 Figure 12 As shown, the mold mechanism includes an electric cylinder 302 fixedly mounted on the mold frame 301. A number of rollers 306 are rotatably mounted on the mold frame 301. A number of lower molds 303 are slidably mounted on the mold frame 301. An upper mold 304 is provided on the lower mold 303. An injection molding tube 305 is fixedly mounted on the upper mold 304.

[0038] The plastic raw materials are injected between the upper mold 304 and the lower mold 303 through the injection molding tube 305. The electric cylinder 302 extends to push the lower mold 303 and the upper mold 304 to slide on the rollers 306 for mold switching.

[0039] The working principle of the continuous injection molding device for an ice box connected to a refrigerator disclosed in the present invention is as follows: the motor 202 drives the flip leaf 203 and the upper gear 208 to rotate through gear transmission and belt transmission, and the plastic raw material is put into the cleaning box 201, and the plastic falls into the inner hole plate 204 and falls into the water. The flip leaf 203 rotates to move the plastic into the melting box 206, and falls onto the heating plate 205. The cleaned plastic is blocked by the protrusion on the heating plate 205, and the heating plate 205 generates heat to heat and melt the plastic. The melted plastic flows along the heating plate 205 to the lifting support 210, and the upper gear 208 rotates to drive the bidirectional threaded rod 209 and the lifting support 210 to rise through the upper convex ball 217. As the lifting support 210 rises, the raw material is put into the cleaning box 201, and the plastic falls into the inner hole plate 204 and falls into the water. The flip leaf 203 rotates to move the plastic into the melting box 206, and falls onto the heating plate 205. The protrusion on the heating plate 205 blocks the cleaned plastic. The heating plate 205 generates heat to heat and melt the plastic. The melted plastic flows along the heating plate 205 to the lifting support 210. The upper gear 208 rotates, and the bidirectional threaded rod 209 and the lifting support 210 are driven to rise through the upper convex ball 217. As the lifting support 210 rises, the raw material is put into the cleaning box 201, and the plastic falls into the inner hole plate 204 and falls into the water. The outer spring 214 in the compressed state rebounds, the outer slider 213, the outer frame 212 and the blocking plate 211 slide inward, and the melting box 206 is closed by the blocking plate 211, so that after the lifting support 210 rises, the plastic liquid in the melting box 206 will not enter the injection molding box 101, and when the lifting support 210 rises to the entrance of the temporary storage chamber 207, the plastic liquid in the lifting support 210 flows into the temporary storage chamber 207. When the lifting support 210 rises to the highest point, the upper gear 208 continues to rotate, driving the lifting support 210 to descend to the lowest point, and the lifting support 210 drives the slide rod 215 to rotate, the outer frame 212, the outer slider 213 and the blocking plate 211 move outward, and the outer spring 214 is stretched, so that the blocking plate 211 is opened. The pump 102 extracts the plastic liquid in the temporary storage chamber 207 and pumps it into the injection molding cylinder 103 through the pump tube 104. The central gear 105 rotates to drive the internal threaded cylinder 106 to rotate, and the two-way internal thread 122 drives the inner convex ball 121 and the inner column 120 to descend, thereby driving the lower push plate 110 to descend through the compression spring 112, thereby pushing the injection molding cylinder 103 to slide downward along the injection molding box 101 and the mold frame 301, and inserting the injection molding cylinder 103 into the injection molding tube 305. The lower push plate 110 and the injection molding cylinder 103 cannot continue to descend, and the inner push plate 113 and the lower pressure plate 107 continue to descend. The lower pressure plate 107 pushes the closing plate 109 to descend through the closing spring 108 to close the pump tube 104. 04 After closing, the lower pressure plate 107 continues to descend, the closing spring 108 is compressed, the inner push plate 113 descends to push the plastic liquid in the injection cylinder 103 downward, and pushes the one-way plate 115 downward. The one-way spring 116 is compressed, and the one-way plate 115 no longer closes the partition frame 114. The plastic liquid flows from the partition frame 114 into the injection tube 305. As the inner push plate 113 continues to descend, the inner push plate 113 will contact the lower pressure column 119, driving the lower pressure column 119 to descend, and the one-way plate 115 is pushed down by the inner spring 118, pushing all the plastic liquid in the injection cylinder 103 into the injection tube 305. Under the action of the two-way internal thread 122, when the inner push plate 113 descends to the bottom, it begins to rise and reset.The plastic raw material is injected between the upper mold 304 and the lower mold 303 through the injection pipe 305. The electric cylinder 302 extends to push the lower mold 303 and the upper mold 304 to slide on the rollers 306 for mold switching.

[0040] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope of the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A continuous injection molding device for an ice box in a refrigerator, comprising an injection molding mechanism for performing injection molding of an ice box, characterized in that: The injection molding mechanism comprises an injection molding box (101), the injection molding mechanism is provided with a pre-processing mechanism for cleaning and melting the injection molding raw materials and a mold mechanism for conveying the mold, and the mold mechanism comprises a mold frame (301); The injection molding mechanism comprises an injection molding cylinder (103) slidably mounted on an injection molding box (101), an internal thread cylinder (106) rotatably mounted on a mold frame (301), a central gear (105) fixedly mounted on the internal thread cylinder (106), an inner column (120) slidably mounted in the internal thread cylinder (106), an inner convex ball (121) fixedly mounted on the inner column (120), a bidirectional internal thread (122) provided in the internal thread cylinder (106), the inner convex ball (121) sliding in the bidirectional internal thread (122), an inner push plate (113) fixedly mounted below the inner column (120), and the inner push plate (113) sliding along the inner wall of the injection molding cylinder (103).

2. The continuous injection molding device for an ice box in a refrigerator according to claim 1, characterized in that: The injection molding mechanism further comprises a column (111) fixedly mounted on the inner push plate (113), the column (111) and the injection molding cylinder (103) being slidably mounted, a lower pressure plate (107) being fixedly mounted on the column (111), a lower push plate (110) being slidably mounted on the column (111), a compression spring (112) being arranged between the lower push plate (110) and the lower pressure plate (107), the injection molding cylinder (103) and the mold frame (301) being slidably mounted, and the lower push plate (110) and the injection molding cylinder (103) being fixedly mounted.

3. The continuous injection molding device for an ice box in a refrigerator according to claim 2, characterized in that: A partition frame (114) is fixedly installed in the injection molding cylinder (103), an inner cylinder (117) is slidably installed on the partition frame (114), a one-way disk (115) is fixedly installed on the inner cylinder (117), a one-way spring (116) is arranged between the inner cylinder (117) and the partition frame (114), a lower pressure column (119) is slidably installed in the inner cylinder (117), and an inner spring (118) is arranged between the lower pressure column (119) and the inner cylinder (117).

4. The continuous injection molding device for an ice box in a refrigerator according to claim 3, characterized in that: A pump (102) is fixedly mounted on the injection molding box (101), and the pump (102) is connected to the injection molding cylinder (103) through a pump tube (104). A closing plate (109) is slidably mounted on the injection molding cylinder (103), and a closing spring (108) is provided between the closing plate (109) and the lower pressure plate (107).

5. The continuous injection molding device for an ice box in a refrigerator according to claim 1, characterized in that: The pre-treatment mechanism comprises a melting box (206) fixedly mounted on the injection molding box (101), a cleaning box (201) fixedly mounted on the melting box (206), a flip leaf (203) rotatably mounted in the cleaning box (201), a plurality of holes being provided on the flip leaf (203), clean water being filled in the cleaning box (201), an inner hole plate (204) fixedly mounted in the cleaning box (201), a plurality of holes being provided on the inner hole plate (204), a heating plate (205) fixedly mounted in the melting box (206), a plurality of protrusions being provided on the heating plate (205), an upper gear (208) rotatably mounted on the injection molding box (101), and a motor (202) being provided next to the cleaning box (201), the motor (202 driving the flip leaf (203) and the upper gear (208) to rotate through gear transmission and belt transmission.

6. The continuous injection molding device for an ice box in a refrigerator according to claim 5, characterized in that: A temporary storage chamber (207) is provided in the injection molding box (101), a lifting support (210) is slidably installed in the injection molding box (101), a bidirectional threaded rod (209) is fixedly installed on the lifting support (210), an upper convex ball (217) is provided in the upper gear (208), and the upper convex ball (217) slides in the bidirectional thread of the bidirectional threaded rod (209).

7. The continuous injection molding device for an ice box in a refrigerator according to claim 6, characterized in that: Two blocking plates (211) are slidably mounted on the melting box (206); a fixed column (216) is fixedly mounted inside the injection molding box (101); an outer frame (212) is fixedly mounted on the blocking plate (211); an outer sliding block (213) is fixedly mounted on the outer frame (212); an outer spring (214) is provided between the outer frame (212) and the injection molding box (101); a sliding groove rod (215) is rotatably mounted on the outer sliding block (213); a sliding groove is provided on the sliding groove rod (215); and the fixed column (216) slides in the sliding groove of the sliding groove rod (215).

8. The continuous injection molding device for an ice box in a refrigerator according to claim 1, characterized in that: The mold mechanism comprises an electric cylinder (302) fixedly mounted on a mold frame (301); a plurality of rollers (306) are rotatably mounted on the mold frame (301); a plurality of lower molds (303) are slidably mounted on the mold frame (301); an upper mold (304) is arranged on the lower mold (303); and an injection tube (305) is fixedly mounted on the upper mold (304).

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