Adjustable injection mold and injection molding process thereof

Abstract

The invention provides an adjustable injection mold and an injection molding process thereof, and relates to the technical field of injection molds. The adjustable injection mold comprises a lower mold mechanism and an upper mold mechanism, the lower mold mechanism comprises a lower mold body, five first reinforcing boxes, five second reinforcing boxes, five air pumps and a bamboo joint electric telescopic rod, and the inner wall of the lower mold body is slidably sleeved with a first adjusting block; the inner wall of the first adjusting block is slidably sleeved with a second adjusting block. By conveniently carrying out injection molding on injection molding parts of different sizes, the time for replacing the lower mold main body is shortened, injection molding can be carried out on the interiors of the lower mold main bodies of different sizes, and plastic enters the mold more quickly and more uniformly; and the rotating adjusting disc determines alignment of the discharging row holes and the adjusting injection molding row holes through mutual induction of the first position sensor and the second position sensor, so that leakage during injection molding is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to an adjustable injection mold and an injection molding process thereof. Background Art

[0002] Injection molds are tools used to manufacture plastic parts. They are widely used in various industries, especially in the automotive, electronics and medical industries. Injection molds are usually made of steel or aluminum and have high wear resistance and strength. Its main working principle is to heat the plastic particles to melt them, and then inject the molten plastic into the mold cavity. After the plastic cools inside the mold, the molded injection molded part is taken out.

[0003] The injection space of most existing injection molds is fixed and cannot be adjusted, which means that when different sizes of injection molded parts need to be injected, different molds need to be replaced, which requires the manufacture of more molds and increases the injection molding cost. In addition, it takes time to replace the mold, which affects normal work. In addition, injection molding is done from one hole into the mold, and this injection molding method affects the efficiency of injection molding. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides an adjustable injection mold and an injection molding process thereof, which solves the problem of needing to replace different molds when molding parts of different sizes and only injecting the mold from the center, resulting in low injection efficiency.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an adjustable injection mold, including a lower mold mechanism and an upper mold mechanism, the lower mold mechanism includes a lower mold body, five first reinforcement boxes, five second reinforcement boxes, five air pumps and a bamboo electric telescopic rod, the inner wall sliding sleeve of the lower mold body is provided with a first adjustment block, the inner wall sliding sleeve of the first adjustment block is provided with a second adjustment block, the inner wall sliding sleeve of the second adjustment block is provided with a third adjustment block, the inner wall sliding sleeve of the third adjustment block is provided with a fourth adjustment block, the inner wall sliding sleeve of the fourth adjustment block is provided with a fifth adjustment block, elastic bags are fixedly arranged between the five first reinforcement boxes and the five second reinforcement boxes, and a plurality of pulling springs are fixedly arranged between the front inner walls and the rear inner walls of the five elastic bags;

[0008] The upper mold mechanism includes an upper mold body, an adjustment disk, a first position sensor, a motor and four second position sensors. The rear end face of the upper mold body is provided with four adjustment injection holes, a disk groove is provided at the front side position inside the upper mold body, a ring groove is provided at the outer side position of the front inner wall of the disk groove, a rubber wheel is fixedly provided at the output end of the motor, a discharge hole is provided at the rear end face of the adjustment disk, and a movable ring is fixedly provided at the outer side position of the front end face of the adjustment disk.

[0009] Preferably, a base is fixedly provided on the rear end surface of the lower mold mechanism, a top seat is fixedly provided on the front end surface of the upper mold mechanism, and a docking plate is fixedly provided at the middle position of the front end surface of the top seat.

[0010] Preferably, a first air pipe is fixedly provided on the front side of the upper end surfaces of the five air pumps, a second air pipe is fixedly provided between the five air pumps and the five elastic bags, five of the second reinforcement boxes are fixedly provided on the rear inner wall of the lower mold body, and the five first reinforcement boxes are respectively fixedly provided on the rear end surfaces of the first adjusting block, the second adjusting block, the third adjusting block, the fourth adjusting block and the fifth adjusting block.

[0011] Preferably, a pressure plate is fixedly provided at the output end of the bamboo-section electric telescopic rod, and five top columns are fixedly provided on the front end surface of the pressure plate, and the five top columns are all slidably provided on the inner wall of the fifth adjusting block, and a placement groove is provided on the rear inner wall of the lower mold body, and the bamboo-section electric telescopic rod is fixedly provided on the rear inner wall of the placement groove, and the five air pumps are all fixedly provided on the upper side of the rear inner wall of the placement groove.

[0012] Preferably, a first fixing rod is fixedly provided at the upper and lower positions on both sides of the rear end surface of the lower mold body, a limiting rod is fixedly provided at the upper and lower positions on both sides of the front end surface of the lower mold body, limiting holes are provided at the upper and lower positions on both sides of the rear end surface of the upper mold body, a second fixing rod is fixedly provided at the upper and lower positions on both sides of the front end surface of the upper mold body, and the four limiting rods are slidably provided on the inner walls of the four limiting holes respectively.

[0013] Preferably, an outer ring is fixedly provided on the outer side of the rear end face of the upper mold body, an inner ring is fixedly provided on the inner side of the rear end face of the upper mold body, the adjustment disk is rotatably provided on the inner wall of the disk groove, the movable ring is rotatably provided on the inner wall of the ring groove, and the outer end face of the rubber wheel and the outer end face of the movable ring are movably provided.

[0014] Preferably, four inner grooves are opened in the top surface of the disk groove, and four second position sensors are fixedly arranged on the inner walls of the four inner grooves respectively; an upper groove is opened in the middle position of the upper end surface of the adjustment disk, and the first position sensor is fixedly arranged on the inner wall of the upper groove.

[0015] Preferably, an empty slot is opened at the lower side of the front inner wall of the disk slot, the motor is fixedly arranged on the front inner wall of the empty slot, a feed hole is opened at the middle position of the front end surface of the upper mold body, a connecting hole is opened at the middle position of the front end surface of the adjusting disk, the feed hole is aligned with the connecting hole, and the connecting hole is connected to the discharge hole.

[0016] An injection molding process of an adjustable injection mold comprises the following steps:

[0017] S1: Injection mold installation, fix the lower mold mechanism on the base through the first fixing rod, and fix the upper mold mechanism on the top seat through the second fixing rod;

[0018] S2: Adjust the lower mold mechanism and the upper mold mechanism, start the air pump to draw air from the outside through the first air pipe and fill it into the elastic bag through the second air pipe. The bulging elastic bag will push the adjustment block through the first reinforcement box. By pushing different adjustment blocks, the size of the inner wall of the lower mold body can be adjusted. The motor is started inside the lower mold body of different sizes to drive the rubber wheel to rotate. The rotating rubber wheel drives the adjustment disk to rotate inside the disk groove through the moving ring. The rotating adjustment disk will correspond to the second position sensor through the first position sensor to determine the position where the discharge row hole is aligned with the adjustment injection row hole;

[0019] S3: Injection molding, start the injection molding machine to inject plastic from the docking plate, enter from the feed hole, reach the inside of the adjustment plate from the connection hole, and then pass through the feed hole on the adjustment plate and the adjustment injection hole to enter the inside of the lower mold body;

[0020] S4: The mold is opened and the bamboo electric telescopic rod is started to push the molded part through the top column, so that the molded part falls out from the inside of the lower mold body.

[0021] Working principle: fix the lower mold mechanism on the base through the first fixing rod, and fix the upper mold mechanism on the top seat through the second fixing rod. Before injection molding, start the air pump to draw air from the outside through the first air pipe and fill it into the elastic bag through the second air pipe. The bulging elastic bag will push the adjustment block through the first reinforcement box. By pushing different adjustment blocks, the size of the inner wall of the lower mold body can be adjusted. The motor corresponding to the lower mold body of different sizes is started to drive the rubber wheel to rotate. The rotating rubber wheel drives the adjustment disk to rotate inside the disk groove through the moving ring. The rotating adjustment disk will correspond to the first position sensor and the second position sensor to determine the position of the discharge row hole and the adjustment injection row hole. Fix the mold on the injection molding machine, start the injection molding machine, inject plastic from the docking disk, enter from the feed hole, reach the inside of the adjustment disk from the connecting hole, and then discharge through the feed row hole on the adjustment disk through the adjustment injection row hole into the lower mold body. When the injection molding inside the mold is cooled, open the mold and start the bamboo electric telescopic rod to push the injection molded part down through the top column.

[0022] (III) Beneficial effects

[0023] The present invention provides an adjustable injection mold and an injection molding process thereof, which have the following beneficial effects:

[0024] 1. The present invention provides an adjustable injection mold and an injection molding process thereof. The injection mold can adjust the size of the inner wall of the lower mold body. When it is necessary to reduce the internal space of the lower mold body, the air pump is started to inflate the inner wall of the elastic bag through the pipeline, so that the elastic bag swells and pushes the adjustment block. Different adjustment blocks are pushed out through different elastic bags to reduce the internal space of the lower mold body. When it is necessary to expand the internal space of the lower mold body, the air pump is started to extract air from the elastic bag. The lack of gas support allows the pulling spring to pull the corresponding adjustment block, thereby expanding the internal space of the lower mold body, making it more convenient to adjust the air inside the lower mold body, and convenient to perform injection molding of injection molded parts of different sizes, reducing the time required to replace the lower mold body, and there is no need to manufacture too many molds, thereby reducing costs.

[0025] 2. The present invention provides an adjustable injection mold and an injection molding process thereof. The upper mold mechanism of the injection mold can adjust the injection molding method. The motor is started to drive the rubber wheel to rotate. The rotating rubber wheel drives the movable ring to rotate inside the ring groove through friction. The rotating movable ring drives the adjustment disk to rotate, so that the discharge holes on the adjustment disk are aligned with the adjustment injection molding holes on the upper mold body. In this way, injection molding can be performed on the interior of the lower mold body of different sizes, allowing the plastic to enter the mold faster and more evenly.

[0026] 3. The present invention provides an adjustable injection mold and its injection molding process. Four second position sensors are arranged inside the disk groove inside the upper mold body. The four second position sensors are convenient for aligning four adjustment injection molding holes on the surface of the upper mold body. The four adjustment injection molding holes are all in a cross shape and the rotation angles are staggered. A first position sensor is arranged on the adjustment disk. The rotating adjustment disk determines the alignment of the discharge hole and the adjustment injection molding hole through the mutual induction of the first position sensor and the second position sensor, thereby avoiding leakage during injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an axonometric schematic diagram of the present invention;

[0028] Figure 2 It is the explosion schematic diagram of the present invention;

[0029] Figure 3 Axonometric diagram of the adjustment for the present invention;

[0030] Figure 4 It is a side sectional schematic diagram of the lower mold mechanism of the present invention;

[0031] Figure 5 It is a rear view schematic diagram of the upper mold mechanism of the present invention;

[0032] Figure 6 It is a rear view schematic diagram of the adjustment disk of the present invention;

[0033] Figure 7 It is a side-section isometric schematic diagram of the upper mold body of the present invention;

[0034] Figure 8 It is a side-section isometric schematic diagram of the adjustment disk of the present invention;

[0035] Fig. 9 It is a side sectional schematic diagram of the upper mold mechanism of the present invention.

[0036] Among them, 1. lower mold mechanism; 2. upper mold mechanism; 3. base; 4. top seat; 5. docking plate; 101. lower mold body; 102. first air pipe; 103. first adjustment block; 104. second adjustment block; 105. third adjustment block; 106. fourth adjustment block; 107. fifth adjustment block; 108. top column; 109. limit rod; 110. first fixing rod; 111. first reinforcement box; 112. second reinforcement box; 113. elastic bag; 114. pull spring; 115. pressure plate; 116. placement slot; 117. bamboo electric The movable telescopic rod; 118, air pump; 119, second air pipe; 201, upper mold body; 202, second fixed rod; 203, inner ring; 204, adjustment injection hole; 205, limit hole; 206, outer ring; 207, discharge hole; 208, movable ring; 209, adjustment disk; 210, upper groove; 211, first position sensor; 212, feed hole; 213, motor; 214, rubber wheel; 215, connecting hole; 216, inner groove; 217, second position sensor; 218, ring groove; 219, empty groove; 220, disk groove. DETAILED DESCRIPTION

[0037] 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.

[0038] Example:

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, an embodiment of the present invention provides an adjustable injection mold, including a lower mold mechanism 1 and an upper mold mechanism 2, the lower mold mechanism 1 includes a lower mold body 101, five first reinforcement boxes 111, five second reinforcement boxes 112, five air pumps 118 and a bamboo electric telescopic rod 117, the inner wall sliding sleeve of the lower mold body 101 is provided with a first adjustment block 103, the inner wall sliding sleeve of the first adjustment block 103 is provided with a second adjustment block 104, the inner wall sliding sleeve of the second adjustment block 104 is provided with a third adjustment block 105, the inner wall sliding sleeve of the third adjustment block 105 is provided with a fourth adjustment block 106, and the inner wall sliding sleeve of the fourth adjustment block 106 is provided with a fifth adjustment block 107, elastic capsules 113 are fixedly arranged between the five first reinforcement boxes 111 and the five second reinforcement boxes 112, and a plurality of pulling springs 114 are fixedly arranged between the front inner walls and the rear inner walls of the five elastic capsules 113.

[0040] A base 3 is fixedly provided on the rear end face of the lower mold mechanism 1, a top seat 4 is fixedly provided on the front end face of the upper mold mechanism 2, a docking plate 5 is fixedly provided on the middle position of the front end face of the top seat 4, a first air pipe 102 is fixedly provided on the front side position of the upper end face of the five air pumps 118, a second air pipe 119 is fixedly provided between the five air pumps 118 and the five elastic bags 113, five second reinforcement boxes 112 are fixedly provided on the inner wall of the rear side of the lower mold body 101, and five first reinforcement boxes 111 are respectively fixedly provided on the rear end faces of the first adjustment block 103, the second adjustment block 104, the third adjustment block 105, the fourth adjustment block 106 and the fifth adjustment block 107, a pressing plate 115 is fixedly provided on the output end of the bamboo electric telescopic rod 117, and five top columns 108 are fixedly provided on the front end face of the pressing plate 115. 108 are all slidably set on the inner wall of the fifth adjustment block 107, a placement groove 116 is opened on the inner wall of the rear side of the lower mold body 101, a bamboo electric telescopic rod 117 is fixedly set on the inner wall of the rear side of the placement groove 116, and five air pumps 118 are all fixedly set on the upper side of the inner wall of the rear side of the placement groove 116. The first fixed rod 110 is fixedly set on the upper and lower sides of both sides of the rear end face of the lower mold body 101, and the limiting rod 109 is fixedly set on the upper and lower sides of both sides of the front end face of the lower mold body 101. Limiting holes 205 are opened on the upper and lower sides of both sides of the rear end face of the upper mold body 201, and second fixed rods 202 are fixedly set on the upper and lower sides of both sides of the front end face of the upper mold body 201. The four limiting rods 109 are respectively slidably set on the inner walls of the four limiting holes 205.

[0041] Specifically, the injection mold can adjust the size of the inner wall of the lower mold body 101. When it is necessary to reduce the internal space of the lower mold body 101, the air pump 118 is started to draw air through the first air pipe 102, and the second air pipe 119 fills the gas into the inner wall of the elastic bag 113, so that the elastic bag 113 swells and pushes the adjustment block. Different adjustment blocks are pushed out through different elastic bags 113, thereby reducing the internal space of the lower mold body 101. When it is necessary to expand the internal space of the lower mold body 101, the air pump 118 is started to draw air from the elastic bag 113. The lack of gas support allows the pull spring 114 to pull the corresponding adjustment block, thereby expanding the internal space of the lower mold body 101. The air pump 118 inflates and draws air to the inside of the elastic bag 113. When the elastic bag 113 is evacuated, the contracted elastic bag 113 will be contracted by the elasticity it carries. , and the pulling spring 114 inside the elastic bag 113 will pull the first reinforcement box 111, thereby adjusting the length of the first adjusting block 103, the second adjusting block 104, the third adjusting block 105 and the fourth adjusting block 106 extending inside the lower mold body 101 respectively, and the fifth adjusting block 107 is the basic block inside the lower mold body 101, and extending different adjusting blocks can form irregular injection molded parts, making it more convenient to regulate the air inside the lower mold body 101, and convenient to inject injection molded parts of different sizes, reducing the time required to replace the lower mold body 101, when the injection molding of the injection molded parts inside the mold is completed, open the mold and start the bamboo electric telescopic rod 117 to push the pressure plate 115, so that the pressure plate 115 pushes the top column 108, and the injection molded parts are pushed through the top column 108, thereby facilitating the disassembly of the injection molded parts.

[0042] like Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown, the upper mold mechanism 2 includes an upper mold body 201, an adjusting disk 209, a first position sensor 211, a motor 213 and four second position sensors 217. Four adjusting injection holes 204 are provided on the rear end face of the upper mold body 201, a disk groove 220 is provided at the front side position inside the upper mold body 201, and a ring groove 218 is provided at the outer position of the front inner wall of the disk groove 220. A rubber wheel 214 is fixedly provided at the output end of the motor 213, a discharge hole 207 is provided on the rear end face of the adjusting disk 209, and a movable ring 208 is fixedly provided at the outer position of the front end face of the adjusting disk 209.

[0043] An outer ring 206 is fixedly arranged at the outer position of the rear end surface of the upper mold body 201, an inner ring 203 is fixedly arranged at the inner position of the rear end surface of the upper mold body 201, an adjusting disk 209 is rotatably arranged on the inner wall of the disk groove 220, a movable ring 208 is rotatably arranged on the inner wall of the ring groove 218, an outer end surface of the rubber wheel 214 and an outer end surface of the movable ring 208 are movably arranged, four inner grooves 216 are opened on the inner top surface of the disk groove 220, four second position sensors 217 are respectively fixedly arranged on the inner walls of the four inner grooves 216, and the adjusting disk 2 An upper groove 210 is opened in the middle position of the upper end surface of 09, a first position sensor 211 is fixedly arranged on the inner wall of the upper groove 210, an empty groove 219 is opened at the lower side position of the front inner wall of the disk groove 220, a motor 213 is fixedly arranged on the front inner wall of the empty groove 219, a feed hole 212 is opened in the middle position of the front end surface of the upper mold body 201, a connecting hole 215 is opened in the middle position of the front end surface of the adjusting disk 209, the feed hole 212 is aligned with the connecting hole 215, and the connecting hole 215 is connected to the discharge hole 207.

[0044] Specifically, the starting motor 213 drives the rubber wheel 214 to rotate, and the rotating rubber wheel 214 drives the moving ring 208 to rotate inside the ring groove 218 through friction, and the rotating moving ring 208 drives the adjusting disk 209 to rotate, so that the discharge row holes 207 on the adjusting disk 209 are aligned with the adjustment injection row holes 204 on the upper mold body 201. Four second position sensors 217 are arranged inside the disk groove 220 inside the upper mold body 201. The four second position sensors 217 are convenient for aligning the four adjustment injection row holes 204 on the surface of the upper mold body 201. The four adjustment injection row holes 204 are all aligned. It is in the shape of a cross and the rotation angles are staggered. A first position sensor 211 is arranged on the adjusting disk 209. The rotating adjusting disk 209 determines the alignment of the discharge hole 207 and the adjustment injection hole 204 through the mutual induction of the first position sensor 211 and the second position sensor 217, so as to avoid leakage during injection molding. The adjustment injection holes 204 at different angles are respectively matched with the extended first adjustment block 103, the second adjustment block 104, the third adjustment block 105 and the fourth adjustment block 106, so as to inject the lower mold body 101 of different sizes, so that the plastic can enter the mold faster and more evenly.

[0045] An injection molding process of an adjustable injection mold comprises the following steps:

[0046] S1: Injection mold installation, fix the lower mold mechanism 1 on the base 3 through the first fixing rod 110, and fix the upper mold mechanism 2 on the top seat 4 through the second fixing rod 202;

[0047] S2: Adjust the lower mold mechanism 1 and the upper mold mechanism 2, start the air pump 118 to draw air from the outside through the first air pipe 102 and fill it into the elastic bag 113 through the second air pipe 119, the bulging elastic bag 113 will push the adjustment block through the first reinforcement box 111, and the size of the inner wall of the lower mold body 101 can be adjusted by pushing different adjustment blocks. The motor 213 corresponding to the different sizes of the lower mold body 101 is started to drive the rubber wheel 214 to rotate, and the rotating rubber wheel 214 drives the adjustment disk 209 to rotate inside the disk groove 220 through the moving ring 208. The rotating adjustment disk 209 will correspond to the second position sensor 217 through the first position sensor 211 to determine the position where the discharge hole 207 is aligned with the adjustment injection hole 204;

[0048] S3: Injection molding, start the injection molding machine to inject plastic from the docking plate 5, enter from the feed hole 212, reach the inside of the adjustment plate 209 from the connecting hole 215, and then pass through the feed hole on the adjustment plate 209 and the adjustment injection hole 204 to enter the inside of the lower mold body 101;

[0049] S4: The mold is opened and the bamboo electric telescopic rod 117 is started to push the molded part through the top column 108, so that the molded part falls outward from the inside of the lower mold body 101.

[0050] 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. An adjustable injection mold, comprising a lower mold mechanism (1) and an upper mold mechanism (2), characterized in that: The lower mold mechanism (1) comprises a lower mold body (101), five first reinforcement boxes (111), five second reinforcement boxes (112), five air pumps (118) and a bamboo electric telescopic rod (117); the inner wall sliding sleeve of the lower mold body (101) is provided with a first adjustment block (103); the inner wall sliding sleeve of the first adjustment block (103) is provided with a second adjustment block (104); the inner wall sliding sleeve of the second adjustment block (104) is provided with a third adjustment block (105); the inner wall sliding sleeve of the third adjustment block (105) is provided with a fourth adjustment block (106); the inner wall sliding sleeve of the fourth adjustment block (106) is provided with a fifth adjustment block (107); elastic bags (113) are fixedly arranged between the five first reinforcement boxes (111) and the five second reinforcement boxes (112); and a plurality of pulling springs (114) are fixedly arranged between the front inner walls and the rear inner walls of the five elastic bags (113); The upper mold mechanism (2) comprises an upper mold body (201), an adjustment disk (209), a first position sensor (211), a motor (213) and four second position sensors (217); the rear end surface of the upper mold body (201) is provided with four adjustment injection holes (204); a disk groove (220) is provided at the front side of the interior of the upper mold body (201); an annular groove (218) is provided at the outer side of the front inner wall of the disk groove (220); a rubber wheel (214) is fixedly provided at the output end of the motor (213); a discharge hole (207) is provided at the rear end surface of the adjustment disk (209); and a moving ring (208) is fixedly provided at the outer side of the front end surface of the adjustment disk (209).

2. The adjustable injection mold according to claim 1, characterized in that: A base (3) is fixedly provided on the rear end surface of the lower mold mechanism (1), a top seat (4) is fixedly provided on the front end surface of the upper mold mechanism (2), and a docking plate (5) is fixedly provided at the middle position of the front end surface of the top seat (4).

3. The adjustable injection mold according to claim 1, characterized in that: A first air tube (102) is fixedly arranged at the front side of the upper end surface of the five air pumps (118), a second air tube (119) is fixedly arranged between the five air pumps (118) and the five elastic bags (113), the five second reinforcement boxes (112) are fixedly arranged on the rear inner wall of the lower mold body (101), and the five first reinforcement boxes (111) are respectively fixedly arranged on the rear end surfaces of the first adjustment block (103), the second adjustment block (104), the third adjustment block (105), the fourth adjustment block (106) and the fifth adjustment block (107).

4. The adjustable injection mold according to claim 1, characterized in that: A pressing plate (115) is fixedly arranged at the output end of the bamboo-jointed electric telescopic rod (117), and five top columns (108) are fixedly arranged on the front end surface of the pressing plate (115). The five top columns (108) are all slidably arranged on the inner wall of the fifth adjustment block (107). A placement groove (116) is opened on the rear inner wall of the lower mold body (101), and the bamboo-jointed electric telescopic rod (117) is fixedly arranged on the rear inner wall of the placement groove (116). The five air pumps (118) are all fixedly arranged on the upper side of the rear inner wall of the placement groove (116).

5. The adjustable injection mold according to claim 1, characterized in that: First fixing rods (110) are fixedly arranged at the upper and lower positions on both sides of the rear end surface of the lower mold body (101), limiting rods (109) are fixedly arranged at the upper and lower positions on both sides of the front end surface of the lower mold body (101), limiting holes (205) are provided at the upper and lower positions on both sides of the rear end surface of the upper mold body (201), second fixing rods (202) are fixedly arranged at the upper and lower positions on both sides of the front end surface of the upper mold body (201), and four limiting rods (109) are slidably arranged on the inner walls of the four limiting holes (205), respectively.

6. The adjustable injection mold according to claim 1, characterized in that: An outer ring (206) is fixedly arranged on the outer side of the rear end surface of the upper mold body (201), an inner ring (203) is fixedly arranged on the inner side of the rear end surface of the upper mold body (201), the adjustment disk (209) is rotatably arranged on the inner wall of the disk groove (220), the movable ring (208) is rotatably arranged on the inner wall of the ring groove (218), and the outer end surface of the rubber wheel (214) and the outer end surface of the movable ring (208) are movably arranged.

7. The adjustable injection mold according to claim 1, characterized in that: The inner top surface of the disk groove (220) is provided with four inner grooves (216), and the four second position sensors (217) are respectively fixedly arranged on the inner walls of the four inner grooves (216). The middle position of the upper end surface of the adjustment disk (209) is provided with an upper groove (210), and the first position sensor (211) is fixedly arranged on the inner wall of the upper groove (210).

8. The adjustable injection mold according to claim 1, characterized in that: An empty slot (219) is provided at the lower side of the front inner wall of the disc slot (220); the motor (213) is fixedly arranged on the front inner wall of the empty slot (219); a feed hole (212) is provided at the middle position of the front end surface of the upper mold body (201); a connection hole (215) is provided at the middle position of the front end surface of the adjustment disc (209); the feed hole (212) is aligned with the connection hole (215), and the connection hole (215) is connected to the discharge hole (207).

9. The injection molding process of an adjustable injection mold according to any one of claims 1 to 8, characterized in that: The steps include: S1: installing the injection mold, fixing the lower mold mechanism (1) on the base (3) via a first fixing rod (110), and fixing the upper mold mechanism (2) on the top seat (4) via a second fixing rod (202); S2: adjusting the lower mold mechanism (1) and the upper mold mechanism (2), starting the air pump (118) to draw air from the outside through the first air pipe (102) and fill it into the elastic bag (113) through the second air pipe (119), the bulging elastic bag (113) will push the adjustment block through the first reinforcement box (111), and the size of the inner wall of the lower mold body (101) can be adjusted by pushing different adjustment blocks, and the motor (213) is started inside the lower mold body (101) of different sizes to drive the rubber wheel (214) to rotate, and the rotating rubber wheel (214) drives the adjustment disk (209) to rotate inside the disk groove (220) through the moving ring (208), and the rotating adjustment disk (209) will correspond to the second position sensor (217) through the first position sensor (211) to determine the position of the discharge row hole (207) and the adjustment injection row hole (204) to align; S3: Injection molding, start the injection molding machine to inject plastic from the docking plate (5), enter from the feed hole (212), reach the inside of the adjustment plate (209) through the connection hole (215), and then pass through the feed hole on the adjustment plate (209) and the adjustment injection hole (204) to be discharged into the lower mold body (101); S4: The molded part is discharged. The mold is opened and the bamboo-jointed electric telescopic rod (117) is activated to push the molded part through the top column (108), so that the molded part falls outward from the inside of the lower mold body (101).

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