A plastic mold raw material weighing device for injection molding

Abstract

The invention discloses a mold raw material weighing device for plastic mold injection molding, which relates to the technical field of plastic mold injection molding equipment, and comprises a weighing mechanism and a display screen installed on one side of the weighing mechanism, a heating mechanism is arranged at the bottom of the weighing mechanism, and fixed blocks are symmetrically arranged on both sides of the heating mechanism, the weighing mechanism comprises a weighing box, the display screen is fixedly installed on one side of the weighing box, a feeding port is arranged at the top of the weighing box, a switching motor is fixedly installed on the side of the weighing box away from the display screen, wherein the output end of the switching motor is fixedly connected with a switching rotating support, a weighing chute is arranged around the inside of the switching rotating support, and limit blocks are symmetrically arranged on both sides of the weighing chute, and the placing plate drives the square scraper to slide inside the weighing chute through the gravity of the placing plate and the square scraper itself, so that the mold raw material adhered to the surface of the weighing chute is cleaned, and the phenomenon of raw material residue is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of plastic mold injection equipment, in particular to a mold raw material weighing device for plastic mold injection. Background Art

[0002] Moulds occupy an important position in industrial production, and injection molding is divided into metal injection molding and non-metal injection molding. The plastic basins and other items we use in daily life are made by plastic injection molding. The raw material body is transported to the heating box through precise weighing, so that the molten raw material is transported to the injection mold.

[0003] Publication No. CN 212400146 U discloses a precise weighing device for plastic mold injection molding, which is provided with a weighing plate, a containing frame and a blocking plate. While accurately weighing, the entire device can transport the raw material body for a second time through other transportation tools after weighing, thereby saving the transportation time of the raw material and improving the transportation efficiency. A receiving plate and a pressure spring are provided, so that the spring can accelerate the dumping of the raw material when the entire device dumps the raw material body, thereby reducing the hot melt passing time of the raw material, thereby improving the injection molding efficiency of the entire device. However, the patent still has the following problems in actual use:

[0004] Although the precise weighing device for plastic mold injection molding mold raw materials can accurately weigh by setting a weighing plate, a containing frame and a blocking plate, the entire device can transport the raw material body for a second time by other transportation tools after weighing, thereby saving the transportation time of the raw materials and improving the transportation efficiency. However, after the initial weighing of the raw materials, the weighing plate is not cleaned in time, resulting in a certain amount of raw materials adhering to the surface of the weighing plate, so that the residual raw materials will affect the subsequent weighing of the raw materials.

[0005] Therefore, a plastic mold injection mold raw material weighing device is proposed to solve the above-mentioned problems. Summary of the invention

[0006] The object of the present invention is to provide a mold raw material weighing device for plastic mold injection molding, so as to solve the problem that the precise weighing device for plastic mold injection molding proposed in the above background technology can accurately weigh the raw materials by setting a weighing plate, a containing frame and a blocking plate, so that the entire device can transport the raw material body for a second time through other transportation tools after weighing, thereby saving the transportation time of the raw materials and improving the transportation efficiency. However, after the preliminary weighing of the raw materials, the weighing plate is not cleaned in time, resulting in a certain amount of raw materials adhering to the surface of the weighing plate, thereby causing the residual raw materials to affect the subsequent weighing of the raw materials.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: A plastic mold injection mold raw material weighing device, comprising a weighing mechanism, and a display screen installed on one side of the weighing mechanism;

[0008] A heating mechanism is provided at the bottom of the weighing mechanism, and fixed blocks are symmetrically provided on both sides of the heating mechanism;

[0009] Also includes:

[0010] The weighing mechanism comprises a weighing box, the display screen is fixedly mounted on one side of the weighing box, a feeding port is provided on the top of the weighing box, and a switching motor is fixedly mounted on the side of the weighing box away from the display screen;

[0011] The output end of the switching motor is fixedly connected to a switching rotating support, a weighing chute is provided around the inside of the switching rotating support, and limit blocks are symmetrically installed on both sides of the weighing chute;

[0012] Among them, a plurality of spring bases are fixedly installed inside the weighing chute, a weighing spring is fixedly installed outside the spring base, and a weighing scale pan is fixedly installed at the end of the weighing spring;

[0013] The inside of the weighing chute is slidably connected with a storage tray, the outside of the storage tray is fixedly installed with a square scraper, the square scraper is slidably connected to the weighing chute, the end of the switching rotating support away from the switching motor is fixedly installed with a first connecting shaft, and one side of the bottom of the weighing box is fixedly installed with a motor cover;

[0014] A cleaning motor is fixedly installed on one side of the inner part of the motor cover, and a sprocket transmission assembly is fixedly connected to the output end of the cleaning motor. A reciprocating screw is symmetrically connected to one side of the sprocket transmission assembly. Screw sleeves are arranged on the outer sides of the two reciprocating screws. One side of the two screw sleeves is rotatably connected to a rotating gear. The top of the rotating gear is meshed with a meshing rack, and the meshing rack is fixedly connected to the weighing box.

[0015] A cleaning rotating rod is fixedly connected between the two rotating gears, a cleaning brush is fixedly installed on the outer side of the cleaning rotating rod, cleaning brackets are symmetrically installed on both sides of the weighing box close to the cleaning rotating rod, cleaning spike rakes are fixedly installed on the ends of the cleaning brackets, and a feed hopper is fixedly installed on the top of the weighing box;

[0016] A first fixed bracket is fixedly installed around the inside of the feed hopper, the top of the first fixed bracket is rotatably connected to a first rotating bracket, a lifting sliding rod is fixedly installed inside the first fixed bracket, the outer side of the lifting sliding rod is slidably connected to a lifting sliding sleeve, the bottom of the lifting sliding sleeve is fixedly connected to a lifting spring, and the outer side of the lifting sliding sleeve is rotatably connected to a connecting rotating rod;

[0017] Preferably, the end of the connecting rotating rod is rotatably connected with an expansion baffle, and the expansion baffle rotates with the first rotating bracket, and limiting slide grooves are symmetrically provided on both sides of the top of the feed hopper, and the limiting slide grooves are internally slidably connected to the limiting sliders, and the tops of the two limiting sliders are fixedly installed with a second fixed bracket, and the inside of the second fixed bracket is symmetrically slidably connected with a locking sliding rod, and the tops of the two locking sliding rods are fixedly installed with a pushing rod, and the pushing rod is fixedly installed with a compression spring near the outer side of the locking sliding rod, and the bottoms of the two locking sliding rods are fixedly installed with a compression plate;

[0018] The heating mechanism comprises a heating box, the heating box is fixedly mounted on the bottom of the weighing box, a rotating motor is fixedly mounted on one side of the heating box, an output end of the rotating motor is fixedly connected to a first connecting plate, a first heating rod and a first stirring rod are fixedly mounted on both sides of the first connecting plate, and one end of the first heating rod and the first stirring rod away from the first connecting plate is fixedly connected to a second connecting plate;

[0019] A rotating main gear is fixedly connected to one side of the second connecting plate, a rotating slave gear is meshedly connected to one side of the rotating main gear, a third connecting plate is fixedly connected to one side of the rotating slave gear, a second heating rod and a second stirring rod are fixedly installed on one side of the third connecting plate, a fourth connecting plate is fixedly installed on one end of the second heating rod and the second stirring rod away from the third connecting plate, a second connecting shaft is fixedly installed on the outer side of the fourth connecting plate, and the second connecting shaft is rotatably connected to the heating box;

[0020] Preferably, a diverter base is fixedly installed on the inner side of the bottom of the heating box, diverter slopes are symmetrically opened on both sides of the diverter base, the fixed blocks are symmetrically installed on both sides of the heating box, discharge troughs are symmetrically installed on both sides of the bottom of the heating box, a connecting spring is fixedly installed on the top of the discharge trough, a sealing plate is fixedly installed on the top of the connecting spring, the sealing plate is slidingly connected to the discharge trough, a locking support is fixedly installed at the top center position of the sealing plate, the top of the locking support is rotatably connected with a locking rotating rod, the end of the locking rotating rod is fixedly installed with a locking hook, and the locking hook is locked and connected with the fixed block.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the plastic mold injection molding mold raw material weighing device, through the gravity of the placing plate and the square scraper, enables the placing plate to drive the square scraper to slide inside the weighing chute, thereby cleaning the mold raw material adhering to the surface of the weighing chute to avoid the phenomenon of raw material residue, and by controlling the depth of the sealing plate inside the discharge chute, the speed of raw material discharge can be controlled, and the sealing plate can be fixed by utilizing the characteristics of the engaging hook and the fixed card block to realize quantitative discharge, and the specific contents are as follows:

[0022] 1. By setting the weighing mechanism, not only can the switching motor be used to drive the switching rotating support to rotate, the weighing chute is moved to the bottom of the feed port, the weighing spring and the weighing scale pan inside the weighing chute are used to weigh the mold raw materials, the switching rotating support is moved to the bottom of the weighing box, and the mold raw materials fall into the heating box at the bottom under the action of the raw materials' own gravity. At the same time, through the gravity of the placement plate and the square scraper themselves, the placement plate drives the square scraper to slide inside the weighing chute, so as to clean the mold raw materials adhering to the surface of the weighing chute, and avoid the phenomenon of raw material residue, which affects the accuracy of subsequent raw material weighing. At the same time, the cleaning motor is started to drive the sprocket transmission assembly and the reciprocating screw to rotate, so that the screw sleeve drives the rotating gear and the cleaning rotating rod to reciprocate, and the meshing connection between the rotating gear and the meshing rack is used to make the cleaning rotating rod drive the cleaning brush to rotate, so as to clean the surface of the placement plate and the square scraper. When the cleaning brush contacts the cleaning brackets on both sides, the cleaning rake can be used to clean the raw materials on the surface of the cleaning brush, thereby improving the cleaning brush. The cleaning effect is achieved by using the feed hopper on the top to put the raw materials to be weighed onto the unfolding baffle, using the weight of the raw materials themselves to squeeze the unfolding baffle, using the elastic force of the lifting spring to drive the lifting sliding sleeve to slide on the outside of the lifting sliding rod while driving the connecting rotating rod to rotate, and the unfolding angle of the unfolding baffle can be automatically controlled according to the weight of the raw materials, which is convenient for controlling the speed of the raw materials falling, and the locking sliding rod and the pressing plate are driven to move upward by pulling the push rod upward, and the second fixed bracket is moved to the top of the unfolding baffle by using the limiting slide groove, and the pressing plate is squeezed by the elastic force of the pressing spring to close the unfolding baffle, so that the feed hopper can be closed to prevent the raw materials from falling into the inside of the weighing chute, thereby affecting the weighing accuracy of the weighing chute, and multiple weighing chutes inside the switching rotating support can be used to achieve uninterrupted weighing, and when the raw materials need to be heated, the switching rotating support is rotated to a forty-five degree direction by switching the motor, so that the bottom of the weighing box can be closed to prevent heat loss, thereby affecting the efficiency of raw material heating;

[0023] 2. By setting up the heating mechanism, not only can the rotating motor be used to drive the first connecting plate, the first heating rod and the first stirring rod to rotate, but the second connecting plate can also drive the rotating main gear to rotate. By utilizing the meshing connection between the rotating main gear and the rotating slave gear, the third connecting plate can drive the second heating rod, the second stirring rod and the fourth connecting plate to rotate, which can not only heat the raw materials inside the heating box, but also stir the raw materials, thereby achieving uniform heating of the raw materials and improving the heating efficiency of the raw materials. The diversion slopes on both sides of the diversion base can be used to guide the heated raw materials, and the engaging rotating rod can be rotated and pulled upward, and the engaging rotating rod drives the engaging support and the sealing plate to slide upward. By controlling the depth of the sealing plate inside the discharge trough, the speed of raw material discharge can be controlled. By utilizing the characteristics of the engaging connection between the engaging hook and the fixed block, the sealing plate can be fixed to achieve quantitative discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the weighing mechanism in the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the cross section of the weighing box in the present invention;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the cross section of the switching rotating support in the present invention;

[0028] Figure 5 A schematic diagram of the three-dimensional structure of the cleaning rotating rod and the cleaning brush in the present invention;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the feed hopper cross section in the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the cross section of the first fixing bracket in the present invention;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the pressing plate in the present invention;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the heating mechanism in the present invention;

[0033] Fig.10 It is a schematic diagram of the three-dimensional structure of the diversion base in the present invention;

[0034] Fig.11 It is a schematic diagram of the three-dimensional structure of the sealing plate in the present invention.

[0035] In the figure: 1. weighing mechanism; 101. weighing box; 102. display screen; 103. feed port; 104. switching motor; 105. switching rotating support; 106. weighing chute; 107. limit block; 108. spring base; 109. weighing spring; 110. weighing scale plate; 111. storage plate; 112. square scraper; 113. first connecting shaft; 114. motor cover; 115. cleaning motor; 116 , sprocket drive assembly; 117, reciprocating screw; 118, screw sleeve; 119, rotating gear; 120, meshing rack; 121, cleaning rotating rod; 122, cleaning brush; 123, cleaning bracket; 124, cleaning rake; 125, feed hopper; 126, first fixed bracket; 127, first rotating bracket; 128, lifting sliding rod; 129, lifting sliding sleeve; 130, lifting spring; 131, connecting rotation 1. moving rod; 132. unfolding baffle; 133. limiting slide; 134. limiting slide block; 135. second fixed bracket; 136. locking slide rod; 137. pushing rod; 138. pressing spring; 139. pressing plate; 2. heating mechanism; 201. heating box; 202. rotating motor; 203. first connecting plate; 204. first heating rod; 205. first stirring rod; 206. second connecting plate; 207. rotating Moving main gear; 208, rotating slave gear; 209, third connecting plate; 210, second heating rod; 211, second stirring rod; 212, fourth connecting plate; 213, second connecting shaft; 214, diversion base; 215, diversion slope; 216, fixed block; 217, discharge chute; 218, connecting spring; 219, sealing plate; 220, engaging support; 221, engaging rotating rod; 222, engaging hook. DETAILED DESCRIPTION

[0036] 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 implementation regulations described 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.

[0037] See also Figure 1-Figure 11The present invention provides a technical solution: a plastic mold injection molding mold raw material weighing device, comprising a weighing mechanism 1, and a display screen 102 installed on one side of the weighing mechanism 1, a heating mechanism 2 is arranged at the bottom of the weighing mechanism 1, and fixed blocks 216 are symmetrically arranged on both sides of the heating mechanism 2, the weighing mechanism 1 comprises a weighing box 101, the display screen 102 is fixedly installed on one side of the weighing box 101, a feed port 103 is opened at the top of the weighing box 101, a switching motor 104 is fixedly installed on the side of the weighing box 101 away from the display screen 102, wherein the output end of the switching motor 104 is fixedly connected to a switching rotating support 105, a weighing chute 106 is opened around the inside of the switching rotating support 105, and limit blocks 107 are symmetrically installed on both sides of the weighing chute 106, wherein a plurality of spring bases 108 are fixedly installed inside the weighing chute 106, and a weighing spring 109 is fixedly installed on the outside of the spring base 108 , a weighing pan 110 is fixedly installed at the end of the weighing spring 109, a placing pan 111 is slidably connected inside the weighing chute 106, and a square scraper 112 is fixedly installed on the outside of the placing pan 111. The switching motor 104 drives the switching rotating support 105 to rotate, and the weighing chute 106 is moved to the bottom of the feed port 103. The weighing spring 109 and the weighing pan 110 inside the weighing chute 106 are used to weigh the mold raw material, and the rotating support 105 is moved to the bottom of the weighing box 101. Under the action of the raw material's own gravity, the mold raw material falls into the heating box 201 at the bottom. At the same time, through the gravity of the placing pan 111 and the square scraper 112 themselves, the placing pan 111 drives the square scraper 112 to slide inside the weighing chute 106, so that the mold raw material adhering to the surface of the weighing chute 106 is cleaned up to avoid the phenomenon of raw material residue, which affects the accuracy of subsequent raw material weighing.

[0038] The square scraper 112 is slidably connected to the weighing slide 106, and a first connecting shaft 113 is fixedly installed on one end of the switching rotating support 105 away from the switching motor 104. A motor cover 114 is fixedly installed on one side of the bottom of the weighing box 101, and a cleaning motor 115 is fixedly installed on one side of the inner side of the motor cover 114. The output end of the cleaning motor 115 is fixedly connected to a sprocket transmission assembly 116, and one side of the sprocket transmission assembly 116 is symmetrically connected to a reciprocating screw 117. The outer sides of the two reciprocating screws 117 are each provided with a screw sleeve 118, and one side of the two screw sleeves 118 are rotatably connected to a rotating gear 119. The top of the rotating gear 119 is meshedly connected with a meshing rack 120, and the meshing rack 120 is fixedly connected to the weighing box 101, and a cleaning rotating rod 121 is fixedly connected between the two rotating gears 119. A cleaning brush 122 is fixedly installed on the outer side of the moving rod 121, and cleaning brackets 123 are symmetrically installed on both sides of the weighing box 101 near the cleaning rotating rod 121. A cleaning rake 124 is fixedly installed on the end of the cleaning bracket 123. The cleaning motor 115 is started to drive the sprocket transmission assembly 116 and the reciprocating screw 117 to rotate, so that the screw sleeve 118 drives the rotating gear 119 and the cleaning rotating rod 121 to reciprocate. By utilizing the meshing connection between the rotating gear 119 and the meshing rack 120, the cleaning rotating rod 121 drives the cleaning brush 122 to rotate, thereby cleaning the surfaces of the storage plate 111 and the square scraper 112. When the cleaning brush 122 contacts the cleaning brackets 123 on both sides, the cleaning rake 124 can be used to clean the raw materials on the surface of the cleaning brush 122, thereby improving the cleaning effect of the cleaning brush 122.

[0039] A feed hopper 125 is fixedly installed on the top of the weighing box 101, and a first fixed bracket 126 is fixedly installed around the inside of the feed hopper 125. The top of the first fixed bracket 126 is rotatably connected to a first rotating bracket 127. A lifting sliding rod 128 is fixedly installed inside the first fixed bracket 126. A lifting sliding sleeve 129 is slidably connected to the outer side of the lifting sliding rod 128. A lifting spring 130 is fixedly connected to the bottom of the lifting sliding sleeve 129. A connecting rotating rod 131 is rotatably connected to the outer side of the lifting sliding sleeve 129. An expansion baffle 132 is rotatably connected to the end of the connecting rotating rod 131. The expansion baffle 132 The first rotating bracket 127 rotates, and the top of the feed hopper 125 is symmetrically provided with limited sliding grooves 133 on both sides. The limited sliding grooves 133 are internally slidably connected to the limited sliding blocks 134. The tops of the two limited sliding blocks 134 are fixedly installed with second fixed brackets 135. The inside of the second fixed brackets 135 is symmetrically slidably connected with locking sliding rods 136. The tops of the two locking sliding rods 136 are fixedly installed with push rods 137. The push rods 137 are fixedly installed with compression springs 138 near the outer sides of the locking sliding rods 136. The bottoms of the two locking sliding rods 136 are fixedly installed with compression plates 139. The feed hopper 125 is used to rotate with the first rotating bracket 127. The raw materials to be weighed are placed on the unfolding baffle 132. The raw materials are pressed against the unfolding baffle 132 by their own weight. The lifting and lowering sliding sleeve 129 is driven to slide on the outer side of the lifting and lowering sliding rod 128 by the elastic force of the lifting and lowering spring 130, and the connecting rotating rod 131 is driven to rotate. The unfolding angle of the unfolding baffle 132 can be automatically controlled according to the weight of the raw materials, so as to control the descending speed of the raw materials. The locking sliding rod 136 and the pressing plate 139 are driven to move upward by pulling the push rod 137 upward, and the second fixing bracket 135 is moved to the top of the unfolding baffle 132 by using the limiting slide groove 133. The elastic force of the compression spring 138 is utilized to make the compression plate 139 squeeze the expansion baffle 132, so that the expansion baffle 132 is closed, and the feed hopper 125 can be closed to prevent the raw materials from falling into the weighing chute 106, thereby affecting the weighing accuracy of the weighing chute 106. By switching the multiple weighing chutes 106 inside the rotating support 105, uninterrupted weighing can be achieved. When the raw materials need to be heated, the switching motor 104 is used to rotate the switching rotating support 105 to a forty-five degree direction, so that the bottom of the weighing box 101 can be closed to prevent heat loss, thereby affecting the efficiency of raw material heating.

[0040] The heating mechanism 2 includes a heating box 201, which is fixedly installed at the bottom of the weighing box 101. A rotating motor 202 is fixedly installed on one side of the heating box 201. The output end of the rotating motor 202 is fixedly connected to a first connecting plate 203. A first heating rod 204 and a first stirring rod 205 are fixedly installed on both sides of the first connecting plate 203 respectively. The first heating rod 204 and the first stirring rod 205 are fixedly connected to a second connecting plate 206 at one end away from the first connecting plate 203. A rotating main gear 207 is fixedly connected to one side of the second connecting plate 206. A rotating slave gear 208 is meshedly connected to one side of the rotating main gear 207. A third connecting plate 209 is fixedly connected to one side of the rotating slave gear 208. A second heating rod 210 and a second stirring rod 211 are fixedly installed on one side of the third connecting plate 209 respectively. A fourth connecting plate is fixedly installed at one end of the second heating rod 210 and the second stirring rod 211 away from the third connecting plate 209. 212, a second connecting shaft 213 is fixedly installed on the outer side of the fourth connecting plate 212, and the second connecting shaft 213 is rotatably connected to the heating box 201. A diverter base 214 is fixedly installed on the inner side of the bottom of the heating box 201, and diverter slopes 215 are symmetrically provided on both sides of the diverter base 214. The rotating motor 202 is used to drive the first connecting plate 203, the first heating rod 204 and the first stirring rod 205 to rotate, and at the same time, the second connecting plate 206 drives the rotating main gear 207 to rotate. By utilizing the meshing connection between the rotating main gear 207 and the rotating slave gear 208, the third connecting plate 209 drives the second heating rod 210, the second stirring rod 211 and the fourth connecting plate 212 to rotate, which can not only heat the raw materials inside the heating box 201, but also stir the raw materials, thereby achieving uniform heating of the raw materials and improving the efficiency of raw material heating. The diverter slopes 215 on both sides of the diverter base 214 can guide the heated raw materials.

[0041] The fixed block 216 is symmetrically installed on both sides of the heating box 201, and the discharge grooves 217 are symmetrically installed on both sides of the bottom of the heating box 201. The top of the discharge groove 217 is fixedly installed with a connecting spring 218, and the top of the connecting spring 218 is fixedly installed with a sealing plate 219. The sealing plate 219 is slidably connected to the discharge groove 217. A snap-fit ​​support 220 is fixedly installed at the center position of the top of the sealing plate 219. The top of the snap-fit ​​support 220 is rotatably connected with a snap-fit ​​rotating rod 221, and the end of the snap-fit ​​rotating rod 221 is fixedly installed. A locking hook 222 is fixedly installed, and the locking hook 222 is locked with the fixed block 216. By rotating the locking rotating rod 221 and pulling the locking rotating rod 221 upward, the locking rotating rod 221 drives the locking support 220 and the sealing plate 219 to slide upward. By controlling the depth of the sealing plate 219 inside the discharge groove 217, the discharge speed of the raw materials can be controlled. By utilizing the characteristics of the locking connection between the locking hook 222 and the fixed block 216, the sealing plate 219 can be fixed to achieve quantitative discharge.

[0042] Working principle: Before using this plastic mold injection mold raw material weighing device, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Fig.11 As shown, first, the raw materials to be weighed are placed on the expansion baffle 132 using the top feed hopper 125, and the raw materials are pressed against the expansion baffle 132 by their own weight. The elastic force of the lifting spring 130 is used to drive the lifting sliding sleeve 129 to slide on the outer side of the lifting sliding rod 128 while driving the connecting rotating rod 131 to rotate. The expansion angle of the expansion baffle 132 can be automatically controlled according to the weight of the raw materials, which is convenient for controlling the speed of the raw materials falling. The locking sliding rod 136 and the pressing plate 139 are driven to move upward by pulling the push rod 137 upward, and the second fixed bracket 135 is moved to the expansion position by using the limiting slide groove 133. The top of the baffle 132 utilizes the elastic force of the compression spring 138 to make the compression plate 139 squeeze the expanded baffle 132, so that the expanded baffle 132 is closed, and the feed hopper 125 can be closed to prevent the raw materials from falling into the weighing chute 106, thereby affecting the weighing accuracy of the weighing chute 106. By switching the multiple weighing chutes 106 inside the rotating support 105, uninterrupted weighing can be achieved. When the raw materials need to be heated, the rotating support 105 is rotated to forty-five degrees by switching the motor 104, so that the bottom of the weighing box 101 can be closed to prevent heat loss, thereby affecting the efficiency of raw material heating.

[0043] Secondly, the switching motor 104 is used to drive the switching rotating support 105 to rotate, and the weighing chute 106 is moved to the bottom of the feed port 103. The weighing spring 109 and the weighing scale 110 inside the weighing chute 106 are used to weigh the mold raw material. The switching rotating support 105 is moved to the bottom of the weighing box 101. Under the action of the raw material's own gravity, the mold raw material falls into the heating box 201 at the bottom. At the same time, through the gravity of the placing plate 111 and the square scraper 112, the placing plate 111 drives the square scraper 112 to slide inside the weighing chute 106, so that the mold raw material adhering to the surface of the weighing chute 106 is cleaned to avoid the original The phenomenon of material residue affects the accuracy of subsequent raw material weighing. At the same time, the cleaning motor 115 is started to drive the sprocket transmission assembly 116 and the reciprocating screw 117 to rotate, so that the screw sleeve 118 drives the rotating gear 119 and the cleaning rotating rod 121 to move back and forth. By utilizing the meshing connection between the rotating gear 119 and the meshing rack 120, the cleaning rotating rod 121 drives the cleaning brush 122 to rotate, thereby cleaning the surfaces of the storage tray 111 and the square scraper 112. When the cleaning brush 122 contacts the cleaning brackets 123 on both sides, the cleaning rake 124 can be used to clean the raw materials on the surface of the cleaning brush 122, thereby improving the cleaning effect of the cleaning brush 122.

[0044] Finally, the rotating motor 202 is used to drive the first connecting plate 203, the first heating rod 204 and the first stirring rod 205 to rotate, and the second connecting plate 206 drives the rotating main gear 207 to rotate. The meshing connection between the rotating main gear 207 and the rotating slave gear 208 is used to make the third connecting plate 209 drive the second heating rod 210, the second stirring rod 211 and the fourth connecting plate 212 to rotate, which can not only heat the raw materials inside the heating box 201, but also stir the raw materials to achieve uniform heating of the raw materials, thereby improving the heating efficiency. The efficiency of heating raw materials is high. The diverter slopes 215 on both sides of the diverter base 214 can be used to guide the heated raw materials. By rotating the engaging rotating rod 221 and pulling the engaging rotating rod 221 upward, the engaging rotating rod 221 drives the engaging support 220 and the sealing plate 219 to slide upward. By controlling the depth of the sealing plate 219 inside the discharge groove 217, the speed of raw material discharge can be controlled. The sealing plate 219 can be fixed by utilizing the characteristics of the engaging connection between the engaging hook 222 and the fixed block 216 to achieve quantitative discharge.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic mold injection molding mold material weighing device, comprising a weighing mechanism (1), and a display screen (102) installed on one side of the weighing mechanism (1); A heating mechanism (2) is provided at the bottom of the weighing mechanism (1), and fixed clamping blocks (216) are symmetrically provided on both sides of the heating mechanism (2); It is characterized in that Also includes: The weighing mechanism (1) comprises a weighing box (101), the display screen (102) is fixedly mounted on one side of the weighing box (101), a feed port (103) is provided on the top of the weighing box (101), and a switching motor (104) is fixedly mounted on the side of the weighing box (101) away from the display screen (102); The output end of the switching motor (104) is fixedly connected to a switching rotating support (105), a weighing chute (106) is provided around the inside of the switching rotating support (105), and limit blocks (107) are symmetrically installed on both sides of the weighing chute (106); A plurality of spring bases (108) are fixedly installed inside the weighing chute (106), a weighing spring (109) is fixedly installed outside the spring base (108), and a weighing pan (110) is fixedly installed at the end of the weighing spring (109); The inside of the weighing chute (106) is slidably connected to a storage tray (111), the outer side of the storage tray (111) is fixedly mounted with a square scraper (112), the square scraper (112) is slidably connected to the weighing chute (106), one end of the switching rotating support (105) away from the switching motor (104) is fixedly mounted with a first connecting shaft (113), and one side of the bottom of the weighing box (101) is fixedly mounted with a motor cover (114); A cleaning motor (115) is fixedly mounted on one side of the interior of the motor cover (114); the output end of the cleaning motor (115) is fixedly connected to a sprocket transmission assembly (116); one side of the sprocket transmission assembly (116) is symmetrically connected to a reciprocating screw (117); screw sleeves (118) are provided on the outer sides of the two reciprocating screws (117); one side of the two screw sleeves (118) is rotatably connected to a rotating gear (119); the top of the rotating gear (119) is meshingly connected to a meshing rack (120); and the meshing rack (120) is fixedly connected to the weighing box (101); A cleaning rotating rod (121) is fixedly connected between the two rotating gears (119), a cleaning brush (122) is fixedly mounted on the outer side of the cleaning rotating rod (121), cleaning brackets (123) are symmetrically mounted on both sides of the weighing box (101) close to the cleaning rotating rod (121), a cleaning spike rake (124) is fixedly mounted on the end of the cleaning bracket (123), and a feeding hopper (125) is fixedly mounted on the top of the weighing box (101); A first fixed bracket (126) is fixedly installed around the inside of the feed hopper (125); the top of the first fixed bracket (126) is rotatably connected to a first rotating bracket (127); a lifting sliding rod (128) is fixedly installed inside the first fixed bracket (126); the outer side of the lifting sliding rod (128) is slidably connected to a lifting sliding sleeve (129); the bottom of the lifting sliding sleeve (129) is fixedly connected to a lifting spring (130); and the outer side of the lifting sliding sleeve (129) is rotatably connected to a connecting rotating rod (131); The end of the connecting rotating rod (131) is rotatably connected to an unfolding baffle (132), and the unfolding baffle (132) rotates with the first rotating bracket (127). The top of the feed hopper (125) is symmetrically provided with a limiting slide groove (133) on both sides, and the limiting slide groove (133) is internally slidably connected to a limiting slider (134). The tops of the two limiting sliders (134) are fixedly installed with a second fixed bracket (135), and the inside of the second fixed bracket (135) is symmetrically slidably connected with a locking sliding rod (136). The tops of the two locking sliding rods (136) are fixedly installed with a pushing rod (137), and the outer side of the pushing rod (137) is fixedly installed with a clamping spring (138), and the bottoms of the two locking sliding rods (136) are fixedly installed with a clamping plate (139); The heating mechanism (2) comprises a heating box (201), the heating box (201) being fixedly mounted on the bottom of the weighing box (101), a rotating motor (202) being fixedly mounted on one side of the heating box (201), an output end of the rotating motor (202) being fixedly connected to a first connecting plate (203), a first heating rod (204) and a first stirring rod (205) being fixedly mounted on both sides of the first connecting plate (203), and an end of the first heating rod (204) and the first stirring rod (205) away from the first connecting plate (203) being fixedly connected to a second connecting plate (206); A rotating main gear (207) is fixedly connected to one side of the second connecting plate (206), a rotating slave gear (208) is meshedly connected to one side of the rotating main gear (207), a rotating slave gear (208) is fixedly connected to one side of the rotating slave gear (208), a second heating rod (210) and a second stirring rod (211) are fixedly mounted on one side of the third connecting plate (209), a fourth connecting plate (212) is fixedly mounted on one end of the second heating rod (210) and the second stirring rod (211) away from the third connecting plate (209), a second connecting shaft (213) is fixedly mounted on the outer side of the fourth connecting plate (212), and the second connecting shaft (213) is rotationally connected to the heating box (201).

2. A plastic mold injection mold raw material weighing device according to claim 1, characterized in that: A diversion base (214) is fixedly installed on the inner side of the bottom of the heating box (201), and diversion inclined surfaces (215) are symmetrically provided on both sides of the diversion base (214). The fixed clamping block (216) is symmetrically installed on both sides of the heating box (201). Discharge grooves (217) are symmetrically installed on both sides of the bottom of the heating box (201). A connecting spring (218) is fixedly installed on the top of the discharge groove (217), and a sealing plate (219) is fixedly installed on the top of the connecting spring (218). The sealing plate (219) is slidably connected to the discharge groove (217). A snap-fit ​​support (220) is fixedly installed at the center position of the top of the sealing plate (219), and a snap-fit ​​rotating rod (221) is rotatably connected to the top of the snap-fit ​​support (220). A snap-fit ​​hook (222) is fixedly installed on the end of the snap-fit ​​rotating rod (221), and the snap-fit ​​hook (222) is snap-fitted and connected to the fixed clamping block (216).

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