Zipper top stop injection molding device

Abstract

The present invention discloses a zipper top stop injection molding device, comprising a top stop molding die set, an injection molding device, and an air blowing device; the upper die assembly of the top stop molding die set is fixed, the lower die assembly is movably arranged, and a first cleaning hole is provided at the rear end of a die base; a second cleaning hole is provided on a fixed frame of the injection molding device, an injection mechanism is installed on the fixed frame and has a barrel docked with the upper die assembly, and a lifting mechanism is installed on the fixed frame and connected to the injection mechanism; the air blowing device comprises an air blowing nozzle installed on the front side of the die base, and the air blowing nozzle is used to blow waste materials on the top stop molding die set into the first and second cleaning holes for discharge. The zipper top stop injection molding device has a compact structure, a small volume, and occupies a small space, and is easy to be installed in conjunction with other equipment. Only the lower die assembly is moved, so that the energy consumption required for driving is greatly reduced, which is conducive to reducing production costs and saving energy, and the provision of the first and second cleaning holes enables waste materials generated during the top stop molding process to be cleaned online.

Description

Technical Field

[0001] The invention relates to the technical field of zipper manufacturing, in particular to an injection molding device for injection molding an upper stop on a zipper tape. Background Art

[0002] The zipper includes a zipper tape, chain teeth arranged on the zipper tape, and a slider connected to the zipper tape for engaging or separating the chain teeth. In addition, zipper components such as upper stops, lower stops or square latches are generally provided at both ends of the zipper tape. When these zipper components are molded with plastic materials, these zipper components can be molded on the zipper tape through an injection molding process using a zipper injection molding equipment.

[0003] Existing zipper injection molding equipment generally includes a mold for molding zipper parts and an injection molding device for processing plastic raw materials and injecting them into the mold. Among them, the upper mold of the mold is generally designed as an integral unit, and the upper mold and the injection molding device move up and down as a whole to complete the closing and opening of the mold. This existing setting has the following defects: First, the overall weight of the upper mold and the injection molding device set as one is relatively large, and the energy consumption of driving the two to move up and down is relatively large, which is not conducive to reducing production costs and saving energy; second, the volume of the upper mold and the injection molding device set as a whole is relatively large, occupying a large space, which is not conducive to installation with other equipment; third, the upper mold and the lower mold will generate waste during the injection molding process, and the existing equipment cannot clean up these wastes at any time, thereby affecting the injection molding effect.

[0004] Therefore, it is necessary to provide a zipper top stop injection molding device which has a compact structure, a small volume, low energy consumption and can clean up the waste generated by injection molding at any time to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a zipper top stop injection molding device which has a compact structure, a small volume, low energy consumption and can clean up the waste generated by injection molding at any time.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a zipper top stop injection molding device is provided, which includes a top stop molding mold set, an injection molding device, and a blowing device; wherein the top stop molding mold set includes a fixed mold base, an upper mold assembly fixed to the mold base, a lower mold assembly movably arranged on the mold base, and a driving assembly connected to the lower mold assembly, and a first cleaning hole is opened at the rear end of the mold base; the injection molding device includes a fixed frame, an injection mechanism and a lifting mechanism, the fixed frame is fixed to the rear side of the mold base and is provided with a second cleaning hole corresponding to the first cleaning hole, the injection mechanism is installed on the fixed frame and has a barrel, the barrel is connected to the upper mold assembly, and the lifting mechanism is installed on the fixed frame and connected to the injection mechanism, and is used to drive the injection mechanism to rise and fall; the blowing device includes a blowing nozzle installed on the front side of the mold base and facing the first cleaning hole, and the blowing nozzle is used to blow waste material on the top stop molding mold set into the first cleaning hole and the second cleaning hole for discharge.

[0007] Preferably, the injection mechanism also includes an injection motor, a synchronous wheel transmission assembly and a hopper, the injection motor is connected to the upper end of the barrel through the synchronous wheel transmission assembly to drive its rotation, the hopper is connected to the upper end of the barrel, and the lower end of the barrel is provided with an injection nozzle that docks with the upper mold.

[0008] Preferably, the injection mechanism also includes a first connecting plate, a second connecting plate and a third connecting plate, the first connecting plate and the third connecting plate are respectively vertically connected to the second connecting plate and protrude in opposite directions, the upper end of the barrel is installed on the first connecting plate, and the injection motor is installed on the third connecting plate.

[0009] Preferably, the lifting mechanism includes a lifting cylinder, a vertical fixed plate, a lifting slider and a lifting slide rail, the lifting slide rail is fixed to the fixed frame, the vertical fixed plate is slidably connected to the lifting slide rail through the lifting slider, the injection mechanism is installed on the vertical fixed plate, the lifting cylinder is fixed to the fixed frame and is used to drive the vertical fixed plate to slide up and down to drive the injection mechanism to lift and lower.

[0010] Preferably, the lifting mechanism also includes a horizontal fixing plate and a connecting column, the horizontal fixing plate is vertically fixed to the vertical fixing plate, the barrel is installed on the horizontal fixing plate, the connecting column is connected between the horizontal fixing plate and the top of the barrel, and the lifting cylinder is connected to the top of the barrel.

[0011] Preferably, the blowing device also includes a first material receiving trough and an outer cover, the first material receiving trough is obliquely arranged in the first cleaning hole and the second cleaning hole and one end is connected to the lower mold assembly, and the outer cover is fixed to the fixing frame and covers the outside of the second cleaning hole.

[0012] Preferably, the mold base has an upper seat and a lower seat arranged at intervals, and the first cleaning hole is arranged between the upper seat and the lower seat; the upper mold assembly includes an upper mold fixed to the upper seat, an upper mold core detachably connected to the upper mold, and the upper mold is docked with the barrel; the lower mold assembly includes a lower mold movably mounted on the lower seat, and a lower mold core detachably connected to the lower mold and corresponding to the upper mold core; the driving assembly is connected to the lower mold for driving the lower mold to move to close or open with the upper mold.

[0013] Preferably, the upper mold assembly also includes an upper pressure belt block and two positioning columns, the upper pressure belt block is slidably connected to the front end of the upper mold, and the two positioning columns are spaced apart at the rear end of the upper mold; the lower mold assembly also includes a lower pressure belt block and two positioning holes, the lower pressure belt block is fixed to the front end of the lower mold and corresponds to the upper pressure belt block, and the two positioning holes are opened at the rear end of the lower mold and correspond to the two positioning columns.

[0014] Preferably, the driving assembly includes a driving motor, a screw, a screw sleeve, a driving plate, and a driving column. The output shaft of the driving motor is fixedly connected to the screw, the screw sleeve is threadedly connected to the screw and fixed to the driving plate, the driving column is passed through the mold base and has its two ends respectively connected to the driving plate and the lower mold assembly. When the driving motor drives the screw to rotate, the screw sleeve moves up and down, thereby driving the driving plate and the driving column to move to push the lower mold assembly to move.

[0015] Preferably, the drive assembly also includes a base plate, a suspension column, a guide rod, a guide plate, an upper connecting plate and a guide sleeve, the upper connecting plate can be detachably connected to the bottom of the mold base, the guide sleeve is installed on the upper connecting plate, the base plate is fixed to the bottom of the upper connecting plate through the suspension column, the drive motor is installed on the base plate and its output shaft passes through the base plate to fix the screw rod, the drive column passes through the guide sleeve and the mold base to connect the lower mold assembly, the guide plate is fixed to the base plate, and the guide rod is connected to the drive plate and slidably cooperates with the guide plate.

[0016] Compared with the prior art, the zipper top stop injection molding device of the present invention, firstly, has a compact structure, small size, small space occupation, and is convenient for installation in conjunction with other equipment; secondly, the upper mold assembly is fixedly arranged to dock with the barrel of the injection molding device, and the lower mold assembly is movably arranged and driven by the driving assembly to move up and down to close or open the upper mold assembly. Since the weight of the lower mold assembly is small, the energy consumption required for driving is greatly reduced. At the same time, the overall structure of the injection molding device is simplified, and the energy consumption required by its lifting mechanism to drive the injection mechanism during the lifting process is also greatly reduced, which is beneficial to reducing production costs and saving energy; furthermore, a first cleaning hole is opened at the rear end of the mold base, and a second cleaning hole corresponding to the first cleaning hole is opened on the fixed frame, and the blowing nozzle of the blowing device is arranged opposite to the first cleaning hole and the second cleaning hole, so that the waste generated during the top stop molding process is discharged through the first cleaning hole and the second cleaning hole, thereby realizing online cleaning of injection molding waste, keeping the mold clean and the injection molding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the zipper top stop injection molding device of the present invention.

[0018] Figure 2 yes Figure 1 Schematic diagram of the decomposition from another angle.

[0019] Figure 3 It is a structural schematic diagram of the upper stop forming die set in the present invention.

[0020] Figure 4 yes Figure 3 Exploded diagram of .

[0021] Figure 5 yes Figure 4 Enlarged view of the middle and upper die assembly.

[0022] Figure 6 yes Figure 5 Schematic diagram of the structure from another angle.

[0023] Figure 7 yes Figure 6 Exploded diagram of .

[0024] Figure 8 yes Figure 4 Enlarged view of the middle and lower mold components.

[0025] Fig. 9 It is a schematic structural diagram of the injection molding device in the present invention.

[0026] Fig.10 yes Fig. 9 Exploded diagram of .

[0027] Fig.11 yes Fig. 9Schematic diagram from another angle. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are now described with reference to the accompanying drawings, in which like element numbers represent like elements. The zipper top stop injection molding device provided by the present invention is mainly used to mold the top stop on the zipper tape, but is not limited thereto and can also be used to mold other components on the zipper tape.

[0029] Let's combine Figure 1-Figure 2 As shown, the zipper top stop injection molding device provided by the present invention comprises a top stop molding mold set 100, an injection molding device 200, and an air blowing device 300. The top stop molding mold set 100 is used for injection molding the top stop, the injection molding device 200 is arranged above the top stop molding mold set 100, and is used to inject the injection molding material into the top stop molding mold set 100, and the air blowing device 300 is arranged at the front and rear ends of the top stop molding mold set 100, and is used to clean the waste generated on the top stop molding mold set 100.

[0030] Combination Figure 3-Figure 4 As shown, the upper stop molding die set 100 includes a fixed mold base 110, an upper mold assembly 120 fixed to the mold base 110, a lower mold assembly 130 movably arranged on the mold base 110, and a driving assembly 140 connected to the lower mold assembly 130, wherein the upper mold assembly 120 and the lower mold assembly 130 constitute the upper stop molding die. In the present invention, the opening and closing of the upper stop molding die is completed only by the up and down movement of the lower mold assembly 130, while the mold base 110, the upper mold assembly 120, and the injection molding device 200 are not moved as a whole, so that the power consumption when the motor is driven can be greatly saved, so as to achieve the purpose of saving energy and reducing production costs; in addition, a first cleaning hole 114 is opened at the rear end of the mold base 110, which can realize the online cleaning of injection molding waste.

[0031] Continue to combine Figure 3-Figure 4 As shown, in the present invention, the mold base 110 has an upper base 111, a lower base 112 arranged in parallel, and two brackets 113 connected to the rear ends of the two. The upper base 111, the lower base 112, and the brackets 113 form an installation area. The interval between the two brackets 113 forms a first cleaning hole 114 connected to the installation area. The front end of the mold base 110 forms an open end, and the two sides of the mold base 110 are also open. That is, except for the bracket 113 at the rear end of the mold base 110, the other three sides are all open designs. This structural setting of the mold base 110 allows the zipper tape transverse conveying device at the front end to enter the mold base 110 to realize transverse input, and also allows the lateral discharge device arranged on the side to enter the mold base 110 to clamp the zipper tape to realize lateral discharge. That is, the setting of the mold base 110 can shorten the processing cycle of the upper stop molding mold and simplify the production line structure.

[0032] Continue to combine Figure 3-Figure 4 As shown, the upper mold assembly 120 is fixed to the upper seat 111 and is located in the installation area, and the lower mold assembly 130 is movably installed on the lower seat 112, which can move up and down in the installation area to close or open with the upper mold assembly 120, and the driving assembly 140 is connected to the lower mold assembly 130 to drive it to move up and down.

[0033] Combine the following Figure 3-Figure 7 As shown, the upper mold assembly 120 includes an upper mold 121 fixed to the upper seat 111, an upper mold core 122 detachably connected to the upper mold 121, an upper pressure belt block 123 slidably connected to the front end of the upper mold 121, and two positioning columns 124 arranged at intervals at the rear end of the upper mold 121. The upper pressure belt block 123 is arranged on the front side of the upper mold core 122, and the upper mold 121 is also provided with an injection hole 1211 connected to the upper mold core 122. Correspondingly, the lower mold assembly 130 includes a lower mold 131 movably arranged on the lower seat 112, a lower mold core 132 detachably connected to the lower mold 131, a lower pressure belt block 133 fixed to the lower mold 131, and two positioning holes 134 opened in the lower mold 131. The lower mold core 132 corresponds to the upper mold core 122, the lower pressure belt block 133 corresponds to the upper pressure belt block 123, and the two positioning holes 134 correspond to the two positioning columns 124 respectively. A lower mold plate 135 is also fixed to the bottom of the lower mold 131. The present invention only sets two positioning columns 124 at the rear end of the upper mold 121. Compared with the existing method of setting four positioning columns 124 at both ends of the upper mold 121, on the one hand, the structure of the upper stop molding mold set 100 is simplified, and on the other hand, sufficient space is reserved on the front end side of the upper stop molding mold set 100 to facilitate the installation of the zipper tape transverse conveying device and the blowing device. When the zipper tape is conveyed to the bottom of the upper mold assembly 120, the driving assembly 140 drives the lower mold 131 to move up and close with the upper mold 121. At this time, the two positioning columns 124 extend into the two positioning holes 134 respectively, and at the same time, the upper pressure block 123 and the lower pressure block 133 are pressed together to clamp the zipper tape for fixing, and the upper mold core 122 and the lower mold core 132 are closed to form the upper stop for injection molding.

[0034] like Figure 6-Figure 7 As shown, the upper mold core 122 is provided with an upper injection hole 1221, which is connected to the injection hole 1211. At the same time, the upper mold core 122 is also provided with two upper waste grooves 1222 and two upper molding grooves 1223, the two upper waste grooves 1222 are provided on both sides of the upper injection hole 1221 and are connected thereto, the two upper waste grooves 1222 extend in the transverse direction of the upper mold core 122, the two upper molding grooves 1223 are arranged in parallel on both sides of the upper waste groove 1222, the two upper molding grooves 1223 extend in the longitudinal direction of the upper mold core 122, and a plurality of upper positioning pieces 1224 are arranged at intervals in each upper molding groove 1223.

[0035] More specifically, the surface of the upper pressure belt block 123 is concavely provided with two upper fixing grooves 1231 extending longitudinally thereof, and the upper fixing grooves 1231 correspond to the upper molding grooves 1223 of the upper mold core 122, that is, each upper fixing groove 1231 and an upper molding groove 1223 extend along the same straight line.

[0036] In addition, the upper mold assembly 120 further includes a fixed block 125, which is fixed to the front end of the upper mold 121, and has a first protrusion 1251 protruding to both sides at its lower end. The upper end of the upper pressure belt block 123 has a second protrusion 1232 protruding toward each other, and the upper pressure belt block 123 is slidably connected to the first protrusion 1251 through the second protrusion 1232.

[0037] See also Figure 8 As shown, the lower mold core 132 is provided with a lower injection hole 1321, a lower waste groove 1322 and a lower molding groove 1323. The lower injection hole 1321 corresponds to the upper injection hole 1221, the lower waste groove 1322 corresponds to the upper waste groove 1222, the lower molding groove 1323 corresponds to the upper molding groove 1223, and each lower molding groove 1323 is provided with a lower positioning piece 1324 corresponding to the upper positioning piece 1224. When the upper mold 121 and the lower mold 131 are closed, the upper waste groove 1222 of the upper mold core 122 and the lower waste groove 1322 of the lower mold core 132 are closed, and at the same time, the upper molding groove 1223 and the lower molding groove 1323 are closed to form an upper stop molding cavity, and the upper positioning piece 1224 and the lower positioning piece 1324 cooperate to clamp the zipper tape.

[0038] Correspondingly, a lower fixing groove 1331 corresponding to the upper fixing groove 1231 is concavely formed on the lower pressing block 133 . Therefore, when the upper mold 121 and the lower mold 131 are closed, the upper fixing groove 1231 and the lower fixing groove 1331 are closed to form a fixing groove for fixing the zipper tape.

[0039] Combine the following Figure 3-Figure 4 As shown, the driving assembly 140 includes a driving motor 141, a screw rod 142, a screw rod sleeve 143, a driving plate 144, and a driving column 145. The output shaft of the driving motor 141 is fixedly connected to the screw rod 142, the screw rod sleeve 143 is threadedly connected to the screw rod 142 and fixes the driving plate 144, the lower ends of the two driving columns 145 are fixed to the driving plate 144, the two driving columns 145 are respectively movably arranged in the lower seat 112 and the upper ends thereof are fixedly connected to the lower mold plate 135, the driving motor 141 can drive the screw rod 142 to rotate forward and reverse, thereby making the screw rod sleeve 143 move up and down along the screw rod 142, the screw rod sleeve 143 moves to drive the driving plate 144 and the driving column 145 to move, and then the driving column 145 drives the lower mold 131 to move to close or open with the upper mold 121.

[0040] like Figure 4As shown, more specifically, the driving assembly 140 also includes a guide rod 146, a guide plate 147, a bottom plate 148, a suspension column 149, an upper connecting plate 150 and a guide sleeve 151, wherein the upper connecting plate 150 can be detachably connected to the bottom of the lower seat 112, the guide sleeve 151 is installed on the upper connecting plate 150, the bottom plate 148 is fixed to the bottom of the upper connecting plate 150 through a plurality of suspension columns 149, and the driving motor 141 is installed on the bottom plate 148 and outputs The shaft passes through the bottom plate 148 to fix the screw rod 142, and the two driving columns 145 pass through the guide sleeve 151 and the lower seat 112 to connect the lower template 135; the guide plate 147 is fixed to the bottom plate 148, and a vertically extending guide groove 1471 is provided on the guide plate 147. The guide rod 146 is connected to the driving plate 144 and slidably connected in the guide groove 1471. The upward and downward movement of the driving plate 144 is guided by the cooperation of the guide rod 146 and the guide groove 1471. In the present invention, by setting the upper connecting plate 150, when the driving assembly 140 needs to be repaired or replaced, the upper connecting plate 150 is removed from the lower seat 112, and the entire driving assembly 140 can be quickly disassembled, making the maintenance and replacement of the driving assembly 140 more convenient.

[0041] Next, continue to combine Figure 9-11 As shown, the structure of the injection molding device 200 is described in detail. The injection molding device 200 includes a fixed frame 210, an injection mechanism 220 and a lifting mechanism 230. Among them, the fixed frame 210 is fixed to the rear side of the mold base 110 and is provided with a second cleaning hole 211 corresponding to the first cleaning hole 114. In one embodiment of the present invention, the lower end of the fixed frame 210 is H-shaped, so the opening at its lower end forms the second cleaning hole 211. The injection mechanism 220 is installed on the fixed frame 210 and is located above the mold base 110. The injection mechanism 220 has a barrel 221, and the lower end of the barrel 221 is provided with an injection nozzle that is connected to the upper mold 121; the lifting mechanism 230 is installed on the fixed frame 210 and connected to the injection mechanism 220, which is used to drive the injection mechanism 220 to rise and fall.

[0042] Specifically, the injection mechanism 220 also includes a hopper 222, an injection motor 223, and a synchronous wheel transmission assembly. The hopper 222 is connected to the upper end of the barrel 221 for injecting the injection material into the barrel 221. The injection motor 223 is connected to the upper end of the barrel 221 through the synchronous wheel transmission assembly to drive it to rotate. The injection motor 223 and the hopper 222 are arranged on both sides of the barrel 221.

[0043] like Fig.11As shown, the synchronous wheel transmission assembly includes a first pulley 224, a second pulley 225 and a belt 226 wound around the first pulley 224, the second pulley 225 is fixed to the upper end of the barrel 221, and when the injection motor 223 drives the first pulley 224 to rotate, the barrel 221 is driven to rotate through the belt 226 and the second pulley 225.

[0044] Furthermore, the injection mechanism 220 further includes a first connecting plate 227, a second connecting plate 228 and a third connecting plate 229, the first connecting plate 227 and the third connecting plate 229 are respectively vertically connected to the second connecting plate 228 and protrude in opposite directions, and the first connecting plate 227 and the third connecting plate 229 are parallel to each other, that is, there is a certain height difference between the first connecting plate 227 and the third connecting plate 229. The upper end of the barrel 221 is mounted on the first connecting plate 227, and the injection motor 223 is mounted on the third connecting plate 229, so that the barrel 221 and the injection motor 223 are respectively arranged on both sides of the second connecting plate 228 with a certain distance, so as to facilitate the installation with the lifting mechanism 230, so as to achieve the purpose of compact structure.

[0045] Continue to combine Figure 9-11 As shown, the lifting mechanism 230 includes a lifting cylinder 231, a vertical fixed plate 232, a lifting slider 233, a lifting rail 234, a horizontal fixed plate 235 and a connecting column 236. Among them, the lifting rail 234 is fixed to the fixed frame 210 and extends along its height direction, the vertical fixed plate 232 is slidably connected to the lifting rail 234 through the lifting slider 233, the horizontal fixed plate 235 is vertically fixed to the vertical fixed plate 232, the barrel 221 is penetrated through the horizontal fixed plate 235 so that the injection nozzle at its lower end is connected to the upper mold 121, the first connecting plate 227 at its upper end is parallel to the horizontal fixed plate 235, and the two ends of the first connecting plate 227 in the length direction protrude from the two ends of the horizontal fixed plate 235, two connecting columns 236 are respectively connected between the horizontal fixed plate 235 and the first connecting plate 227, and the two connecting columns 236 are arranged on both sides of the barrel 221; the lifting cylinder 231 is fixed to the fixed frame 210 and connected to the first connecting plate 227. In addition, the second connecting plate 228 is arranged parallel to the fixing frame 210, and the injection motor 223 of the injection mechanism 220 is located on the outside of the fixing frame 210 and is close to it, that is, the injection motor 223 and the barrel 221 are arranged on both sides of the fixing frame 210, so that the structure of the entire injection molding device 200 is compact and the occupied space is reduced.

[0046] In the injection molding device 200 of the present invention, when the material in the barrel 221 needs to be replaced or the equipment needs to be cleaned or other operations need to be performed, the lifting cylinder 231 is actuated to push the first connecting plate 227 upward, and then the vertical fixing plate 232 is driven to slide upward along the lifting slide rail 234 through the connecting column 236 and the horizontal fixing plate 235, thereby driving the barrel 221 and the injection motor 223 to move upward as a whole. After completing the operations such as material replacement and cleaning, the lifting cylinder 231 drives the first connecting plate 227 to move downward, and then the vertical fixing plate 232 is driven to move downward through the connecting column 236 and the horizontal fixing plate 235, thereby driving the barrel 221 and the injection motor 223 to move downward as a whole, until the injection nozzle at the lower end of the barrel 221 is docked with the injection hole 1211 of the upper mold 121. In addition, during the process of molding upper stop, the injection nozzle at the lower end of the barrel 221 is always docked with the injection hole 1211 of the upper mold 121.

[0047] More specifically, the lifting mechanism 230 drives the barrel 221 to rise and fall through two lifting cylinders 231. Correspondingly, two mounting plates 237 are provided on both sides of the fixed frame 210. The two mounting plates 237 are located at the same horizontal height. The two lifting cylinders 231 are respectively fixed to the two mounting plates 237 and connected to the two ends of the first connecting plate 227. The two lifting cylinders 231 synchronously push the two ends of the first connecting plate 227 to drive it to rise and fall, so that the force is balanced.

[0048] Continue to view Figure 1-Figure 2 In the present invention, the blowing device 300 includes a blowing nozzle 310, a first material receiving trough 320, a second material receiving trough 330 and a material receiving outer cover 340. The blowing nozzle 310 is installed on the front side of the mold base 110, and the blowing port of the blowing nozzle 310 is directly opposite to the first cleaning hole 114 and the second cleaning hole 211. The first material receiving trough 320 is clamped in the first cleaning hole 114 and the second cleaning hole 211 and is arranged in an inclined manner. The upper end of the first material receiving trough 320 is connected to the lower mold 131. The second material receiving trough 330 is arranged below the fixed frame 210 and is arranged in an inclined manner, and the inclination direction of the second material receiving trough 330 is staggered with the inclination direction of the first material receiving trough 320, thereby saving installation space. The material receiving outer cover 340 is fixed to the fixed frame 210 and covers the outside of the second cleaning hole 211. When the blowing nozzle 310 is working, the gas blown out blows the waste on the lower mold 131 into the first cleaning hole 114 and the second cleaning hole 211. The waste falls into the first receiving trough 320 and then slides down it into the second receiving trough 330, and then automatically slides down and is discharged along the second receiving trough 330, thereby achieving the purpose of online cleaning of injection molding waste, keeping the upper stop molding mold set 100 clean, and then ensuring the injection molding quality. On the other hand, there is no need for people to clean or shut down the machine to clean the upper stop molding mold set 100, thereby improving production efficiency.

[0049] Combine again below Figure 1-Figure 11As shown, the working principle of the zipper top stop injection molding device of the present invention is explained.

[0050] During operation, the zipper tape is conveyed to the upper stop forming mold assembly 100 through the zipper tape transverse conveying device. Due to the structural setting of the mold base 110 and only two positioning columns 124 are set at the rear end of the upper mold 121, the clamp of the zipper tape transverse conveying device can clamp the zipper tape into the mold base 110 and convey it to between the upper mold 121 and the lower mold 131; after the zipper tape is conveyed to the right place, the driving motor 141 of the driving assembly 140 drives the screw rod 142 to rotate, so that the screw rod sleeve 143 moves upward along the screw rod 142, and then drives the driving plate 144 and the driving column 145 to move upward and push the lower mold 131 to move upward, so that the lower mold 131 and the upper mold 121 are closed. At this time, the upper pressure belt block 123 and the lower pressure belt block 133 are closed to clamp the zipper tape, and the upper mold core 122 and the lower mold core 132 are closed to wait for the upper stop to be formed.

[0051] After the upper mold 121 and the lower mold 131 are closed, the material in the barrel 221 of the injection molding device 200 is injected into the injection hole 1211 of the upper mold 121, that is, the plastic particles contained in the hopper 222 are heated into a molten state after entering the barrel 221, and the molten plastic is injected into the upper mold 121, and then the upper stop is formed between the upper mold 121 and the lower mold 131. After the upper stop is formed, the clamp of the side discharge device moves into the mold base 110 to clamp the zipper tape and realize side discharge.

[0052] The waste generated during the injection molding process is blown into the first cleaning hole 114 and the second cleaning hole 211 by the gas blown out by the blowing nozzle 310, so that the waste automatically slides down along the first receiving trough 320 to the second receiving trough 330, and automatically slides down along the second receiving trough 330 to be discharged. During this process, the receiving cover 340 prevents the blown waste from flying around and contaminating other parts of the equipment, thereby ensuring the cleanliness of the upper stop molding mold set 100 and other equipment.

[0053] In summary, the zipper upper stop injection molding device 200 of the present invention, firstly, has a compact structure, a small size, and occupies a small space, and is easy to be installed in conjunction with other equipment; secondly, the upper mold assembly 120 is fixedly arranged to dock with the barrel 221 of the injection molding device 200, and the lower mold assembly 130 is movably arranged and driven by the driving assembly 140 to move up and down to close or open the upper mold assembly 120. Since the weight of the lower mold assembly 130 is small, the energy consumption required for driving is greatly reduced. At the same time, the overall structure of the injection molding device 200 is simplified, and its lifting mechanism 230 drives the injection mechanism 220 to lift and lower. The energy consumption required in the process is also greatly reduced, which is beneficial to reducing production costs and saving energy; furthermore, a first cleaning hole 114 is opened at the rear end of the mold base 110, and a second cleaning hole 211 corresponding to the first cleaning hole 114 is opened on the fixed frame 210, and the blowing nozzle 310 of the blowing device 300 is arranged directly opposite to the first cleaning hole 114 and the second cleaning hole 211, so that the waste generated during the upper stop molding process is blown out through the first cleaning hole 114 and the second cleaning hole 211, thereby realizing online cleaning of the upper stop molding mold set 100, maintaining the cleanliness of the upper stop molding mold set 100 and the injection molding effect.

[0054] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A zipper top stop injection molding device, characterized in that: include: An upper stop forming die set comprises a fixed die base, an upper die assembly fixed to the die base, a lower die assembly movably arranged on the die base, and a driving assembly connected to the lower die assembly, wherein a first cleaning hole is opened at the rear end of the die base; The injection molding device comprises a fixed frame, an injection mechanism and a lifting mechanism, wherein the fixed frame is fixed to the rear side of the mold base and is provided with a second cleaning hole corresponding to the first cleaning hole, the injection mechanism is mounted on the fixed frame and has a barrel, the barrel is docked with the upper mold assembly, and the lifting mechanism is mounted on the fixed frame and connected to the injection mechanism, and is used to drive the injection mechanism to rise and fall; Wherein, the lifting mechanism comprises a lifting cylinder, a vertical fixed plate, a lifting slider and a lifting slide rail, the lifting slide rail is fixed to the fixed frame, the vertical fixed plate is slidably connected to the lifting slide rail through the lifting slider, the injection mechanism is installed on the vertical fixed plate, the lifting cylinder is fixed to the fixed frame and is used to drive the vertical fixed plate to slide up and down to drive the injection mechanism to lift and lower; the material in the barrel is replaced or the cleaning equipment is cleaned by the lifting of the injection mechanism; the injection nozzle at the lower end of the barrel is docked with the injection hole of the upper mold assembly by the lowering of the injection mechanism, and in the process of forming the upper stop, the injection nozzle at the lower end of the barrel is always docked with the injection hole of the upper mold assembly; The air blowing device includes an air blowing nozzle installed on the front side of the mold base and facing the first cleaning hole, and a first material receiving trough which is obliquely arranged in the first cleaning hole and the second cleaning hole and one end of which is connected to the lower mold assembly. The air blowing nozzle is used to blow the waste material on the upper stop molding mold set into the first cleaning hole and the second cleaning hole, and the waste material automatically slides down and is discharged after falling into the first material receiving trough.

2. The zipper top stop injection molding device according to claim 1, characterized in that: The injection mechanism also includes an injection motor, a synchronous wheel transmission assembly and a hopper. The injection motor is connected to the upper end of the barrel through the synchronous wheel transmission assembly to drive it to rotate, and the hopper is connected to the upper end of the barrel.

3. The zipper top stop injection molding device according to claim 2, characterized in that: The injection mechanism also includes a first connecting plate, a second connecting plate and a third connecting plate. The first connecting plate and the third connecting plate are respectively vertically connected to the second connecting plate and protrude in opposite directions. The upper end of the barrel is installed on the first connecting plate, and the injection motor is installed on the third connecting plate.

4. The zipper top stop injection molding device according to claim 3, characterized in that: The lifting mechanism also includes a horizontal fixing plate and a connecting column. The horizontal fixing plate is vertically fixed to the vertical fixing plate. The barrel is installed on the horizontal fixing plate. The connecting column is connected between the horizontal fixing plate and the first connecting plate. The lifting cylinder is connected to the first connecting plate.

5. The zipper top stop injection molding device according to claim 1, characterized in that: The air blowing device also includes an outer cover, which is fixed to the fixing frame and covers the outside of the second cleaning hole.

6. The zipper top stop injection molding device according to claim 1, characterized in that: The mold base has an upper seat and a lower seat arranged at an interval, and the first cleaning hole is arranged between the upper seat and the lower seat; the upper mold assembly includes an upper mold fixed to the upper seat, an upper mold core detachably connected to the upper mold, and the upper mold is docked with the barrel; the lower mold assembly includes a lower mold movably mounted on the lower seat, and a lower mold core detachably connected to the lower mold and corresponding to the upper mold core; the driving assembly is connected to the lower mold for driving the lower mold to move to close or open with the upper mold.

7. The zipper top stop injection molding device according to claim 6, characterized in that: The upper mold assembly also includes an upper pressure belt block and two positioning columns, the upper pressure belt block is slidably connected to the front end of the upper mold, and the two positioning columns are spaced apart at the rear end of the upper mold; the lower mold assembly also includes a lower pressure belt block and two positioning holes, the lower pressure belt block is fixed to the front end of the lower mold and corresponds to the upper pressure belt block, and the two positioning holes are opened at the rear end of the lower mold and correspond to the two positioning columns.

8. The zipper top stop injection molding device according to claim 1, characterized in that: The driving assembly includes a driving motor, a screw, a screw sleeve, a driving plate, and a driving column. The output shaft of the driving motor is fixedly connected to the screw, the screw sleeve is threadedly connected to the screw and fixed to the driving plate, the driving column is passed through the mold base and has two ends respectively connected to the driving plate and the lower mold assembly. When the driving motor drives the screw to rotate, the screw sleeve moves up and down, thereby driving the driving plate and the driving column to move to push the lower mold assembly to move.

9. The zipper top stop injection molding device according to claim 8, characterized in that: The driving assembly also includes a base plate, a suspension column, a guide rod, a guide plate, an upper connecting plate and a guide sleeve. The upper connecting plate can be detachably connected to the bottom of the mold base, the guide sleeve is installed on the upper connecting plate, the base plate is fixed to the bottom of the upper connecting plate through the suspension column, the driving motor is installed on the base plate and its output shaft passes through the base plate to fix the screw rod, the driving column passes through the guide sleeve and the mold base to connect the lower mold assembly, the guide plate is fixed to the base plate, and the guide rod is connected to the driving plate and slidably cooperates with the guide plate.

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