Automobile rear cover plate injection mold

Abstract

The automobile rear cover plate injection mold comprises an injection molding mechanism, a cutting mechanism is arranged on the surface of the injection molding mechanism, the cutting mechanism comprises a U-shaped block, a round pipe, two limiting blocks, a controller, a buzzer and a cylindrical hole, an electric push rod is installed at the top of the inner wall of the U-shaped block, and a rectangular plate is fixed to the output end of the electric push rod. A connecting plate is installed on one side of the rectangular plate, a cutter is fixed to one side of the connecting plate, the outer wall of the circular pipe is fixedly sleeved with a circular ring block, limiting grooves are formed in the opposite faces of the two limiting blocks, first springs are installed on the inner walls of the two limiting grooves, and clamping blocks are slidably connected to the interiors of the two limiting grooves; by arranging the cutting mechanism, redundant waste generated at the top of the automobile rear cover plate after injection molding and cooling can be treated, so that the working efficiency is effectively improved, the workload is reduced, and the use efficiency of an injection mold is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and particularly to an injection mold for an automobile rear cover plate. Background Art

[0002] Injection molding is a method for producing industrial product shapes. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding, compression molding and die casting methods. Most of the products made in this way are semi-finished products, but the structure is very integral. Among them, automobile rear cover plates are generally made by injection molds.

[0003] Although the existing injection molds for automobile rear cover plates can produce high-quality automobile rear cover plates during actual use, they cannot process the redundant waste materials on the top of the manufactured automobile rear cover plates. As a result, the manufactured automobile rear cover plates still need to be cut by other equipment, which increases the workload of the staff and reduces the work efficiency, that is, reduces the use efficiency of the injection mold.

[0004] Therefore, a new type of injection mold for an automobile rear cover plate needs to be proposed to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of the present invention is to provide an injection mold for an automobile rear cover plate to solve the problem that the injection mold cannot process the redundant waste materials on the top of the automobile rear cover plate after injection cooling, thus increasing the workload and reducing the work efficiency.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An injection mold for an automobile rear cover plate, including an injection mechanism, and a cutting mechanism is arranged on the surface of the injection mechanism;

[0007] The cutting mechanism includes a U-shaped block, a circular tube, two limit blocks, a controller, a buzzer and a cylindrical hole. An electric push rod is installed on the inner wall top of the U-shaped block, a rectangular plate is fixed at the output end of the electric push rod, a connecting plate is installed on one side of the rectangular plate, a cutting knife is fixed on one side of the connecting plate, a circular ring block is fixedly sleeved on the outer wall of the circular tube, limit grooves are respectively opened on the opposite sides of the two limit blocks, first springs are installed on the inner walls of the two limit grooves, clamping blocks are slidably connected inside the two limit grooves, limit rods are arranged inside the two first springs, two connecting rods penetrate through one side of the connecting plate movably, second springs are movably sleeved on the outer surfaces of the two connecting rods, fixing bolts are threadedly connected to the same ends of the two connecting rods, a heat conducting block is fixed inside the cylindrical hole, and a temperature sensor is installed at the inlet of the cylindrical hole.

[0008] Preferably, the opposite sides of the two clamping blocks are respectively slidably embedded in the front surface and the rear surface of the circular ring block, and the opposite surfaces of the two clamping blocks are respectively installed with the opposite ends of the two first springs.

[0009] Preferably, the opposite surfaces of the two limiting rods are respectively fixed to the inner walls of the two limiting grooves. The opposite surfaces of the two limiting rods respectively pass through the opposite surfaces of the two clamping blocks movably. The same ends of the two second springs are both installed on one side of the connecting plate.

[0010] Preferably, the detection end of the temperature sensor is in contact with the surface of the heat conduction block. The controller is electrically connected to the buzzer, the controller is electrically connected to the temperature sensor, and the controller is electrically connected to the electric push rod.

[0011] Preferably, the injection molding mechanism includes an upper mold. A lower mold is arranged at the bottom of the upper mold. One side of the U-shaped block is fixed to the other part of the upper mold. The bottom end of the circular tube passes through the top of the upper mold movably. The same ends of the two connecting rods are both fixed to the other side of the upper mold. The same ends of the two second springs are both installed on the other side of the upper mold.

[0012] Preferably, the bottoms of the two limiting blocks are both fixed to the top of the upper mold. The cylindrical hole is opened on the other side of the upper mold. One end of the cutter passes through the other side of the upper mold movably. One end of the cutter is in contact with the outer wall of the circular tube near the bottom.

[0013] Preferably, a placement table is arranged at the bottom of the upper mold. The controller is installed on the top of the placement table. The buzzer is installed on the top of the placement table. Rectangular blocks are fixed at the four corners of the bottom of the placement table. A placement hole is opened on the top of the placement table. The lower mold is located inside the placement hole. Ventilation holes are opened on the top of the upper mold and the bottom of the lower mold.

[0014] Preferably, four first mounting holes are opened on the top of the lower mold. Sealing plates are installed at the output ends of the two ventilation holes. Connecting pipes are fixedly penetrated through the surfaces of the two sealing plates. An air collecting shell is installed on the front surface of the placement table. First hoses are installed at the output ends of the two connecting pipes.

[0015] Preferably, a blower is installed on the front surface of the placement table. A second hose is installed at the output end of the air collecting shell. The output end of the second hose is connected to the input end of the blower. A plurality of rectangular grooves are opened on the front surface, rear surface of the upper mold and the front surface, rear surface of the lower mold. Four second mounting holes are opened on the top of the upper mold.

[0016] Preferably, bolt rods are installed inside each of the first mounting holes and each of the second mounting holes. The eight bolt rods are divided into two groups. One end of one group of bolt rods is threadedly connected to the bottom of the inner wall of the placement hole, and one end of the other group of bolt rods is threadedly connected to the top of the lower mold. Two symmetrically arranged U-shaped frames are installed on the top of the upper mold.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. By setting the cutting mechanism, the present invention can process the excess waste generated on the top of the injection-molded and cooled automotive rear cover plate, thereby effectively improving its working efficiency, reducing the workload, and effectively improving the utilization efficiency of the injection mold. With the cooperation of the controller, buzzer, heat-conducting block, and temperature sensor, the temperature on the surface of the injection-molded automotive rear cover plate can be monitored. With the cooperation of the controller, rectangular plate, and connecting plate, the electric push rod can be controlled to move back and forth. Under the action of the limiting rod, the electric push rod can drive the cutter to move stably through the rectangular plate and connecting plate.

[0019] 2. The present invention is provided with an injection mechanism, which can be used for injection molding of the automotive rear cover plate. At the same time, with the cooperation of the fan, first hose, second hose, air-gathering shell, connecting pipe, sealing plate, and ventilation holes, the heat dissipated from the inside of the upper mold and the inside of the lower mold to the corresponding ventilation holes can be quickly dissipated, accelerating the rapid heat dissipation of the injection-molded automotive rear cover plate. With the cooperation of the bolt rod and the first mounting hole, the lower mold can be fixed inside the placement hole. With the cooperation of the second mounting hole and the bolt rod, the upper mold and the lower mold can be tightly fixed together. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a partial perspective view from the bottom view angle of an injection mold for an automotive rear cover plate according to the present invention;

[0021] Figure 2 It is a perspective view of an injection mold for an automotive rear cover plate according to the present invention;

[0022] Figure 3 It is a partial perspective view from another angle of an injection mold for an automotive rear cover plate according to the present invention;

[0023] Figure 4 It is an injection mold for an automotive rear cover plate according to the present invention Figure 1 The enlarged perspective view at A in;

[0024] Figure 5 It is an injection mold for an automotive rear cover plate according to the present invention Figure 3 The enlarged perspective view at B in;

[0025] Figure 6Schematic three-dimensional structure diagram of the lower mold, the first mounting hole and the rectangular groove of an injection mold for an automobile rear cover plate according to the present invention;

[0026] Figure 7 Bottom view three-dimensional diagram of an injection mold for an automobile rear cover plate according to the present invention;

[0027] Figure 8 Schematic three-dimensional structure diagram of the sealing plate and the connecting pipe of an injection mold for an automobile rear cover plate according to the present invention.

[0028] In the figure: 1. Injection mechanism; 101. Upper mold; 102. Lower mold; 103. Placing table; 104. Rectangular block; 105. Placing hole; 106. Ventilation hole; 107. First mounting hole; 108. Sealing plate; 109. Connecting pipe; 110. Air-gathering shell; 111. First hose; 112. Fan; 113. Second hose; 114. Rectangular groove; 115. Second mounting hole; 116. Bolt rod;

[0029] 2. Cutting mechanism; 201. U-shaped block; 202. Electric push rod; 203. Rectangular plate; 204. Cutter; 205. Circular tube; 206. Ring block; 207. Limit block; 208. Limit groove; 209. First spring; 210. Clamping block; 211. Limit rod; 212. Controller; 213. Buzzer; 214. Connecting plate; 215. Connecting rod; 216. Second spring; 217. Fixed bolt; 218. Cylindrical hole; 219. Heat-conducting block; 220. Temperature sensor;

[0030] 3. U-shaped frame. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figure 1 - Figure 8 As shown in the figure, the present invention provides a technical solution: an injection mold for an automobile rear cover plate, including an injection mechanism 1, and a cutting mechanism 2 is arranged on the surface of the injection mechanism 1;

[0033] The cutting mechanism 2 includes a U-shaped block 201, a circular tube 205, two limiting blocks 207, a controller 212, a buzzer 213 and a cylindrical hole 218. An electric push rod 202 is installed at the top of the inner wall of the U-shaped block 201. A rectangular plate 203 is fixed to the output end of the electric push rod 202. A connecting plate 214 is installed on one side of the rectangular plate 203. A cutting knife 204 is fixed to one side of the connecting plate 214. A circular ring block 206 is fixedly sleeved on the outer wall of the circular tube 205. Limiting grooves 208 are formed on the opposite sides of the two limiting blocks 207. First springs 209 are installed on the inner walls of the two limiting grooves 208. Clamping blocks 210 are slidably connected to the interiors of the two limiting grooves 208. Limiting rods 211 are arranged inside the two first springs 209. The connecting plate 214 is movably penetrated by two connecting rods 215. Second springs 216 are movably sleeved on the outer surfaces of the two connecting rods 215. Fixing bolts 217 are threadedly connected to the same ends of the two connecting rods 215. A heat conducting block 219 is fixed inside the cylindrical hole 218. A temperature sensor 220 is installed at the inlet of the cylindrical hole 218.

[0034] According to Figure 3 and Figure 5 As shown, the opposite sides of the two clamping blocks 210 are respectively slidably embedded in the front surface and the rear surface of the circular ring block 206. The opposite sides of the two clamping blocks 210 are respectively installed with the opposite ends of the two first springs 209. It is convenient to fix the circular tube 205 at the feeding port of the upper die 101 under the cooperation of the circular ring block 206, the limiting blocks 207, the limiting grooves 208, the first springs 209, the limiting rods 211 and the clamping blocks 210.

[0035] According to Figure 3 - Figure 5 As shown, the opposite sides of the two limiting rods 211 are respectively fixed to the inner walls of the two limiting grooves 208. The opposite sides of the two limiting rods 211 respectively penetrate through the opposite sides of the two clamping blocks 210 movably. The same ends of the two second springs 216 are both installed on one side of the connecting plate 214. It is convenient to ensure the horizontal movement of the limiting block 207 under the cooperation of the limiting rods 211 and the limiting grooves 208.

[0036] According to Figure 2 - Figure 4 and Figure 7 As shown, the detection end of the temperature sensor 220 is in contact with the surface of the heat conducting block 219. The controller 212 is electrically connected to the buzzer 213. The controller 212 is electrically connected to the temperature sensor 220. The controller 212 is electrically connected to the electric push rod 202. It is convenient to monitor the temperature of the automotive rear cover plate formed by injection molding between the upper die 101 and the lower die 102 at all times under the cooperation of the temperature sensor 220 and the heat conducting block 219.

[0037] According to Figure 1 -Figure 7 As shown in the figure, the injection molding mechanism 1 includes an upper mold 101. A lower mold 102 is provided at the bottom of the upper mold 101. One side of the U-shaped block 201 is fixed to the other side of the upper mold 101. The bottom end of the round tube 205 movably penetrates through the top of the upper mold 101. The same ends of the two connecting rods 215 are fixed to the other side of the upper mold 101. The same ends of the two second springs 216 are installed on the other side of the upper mold 101, facilitating the production of the automotive rear cover under the cooperation of the upper mold 101 and the lower mold 102.

[0038] According to Figure 2 - Figure 5 As shown in the figure, the bottoms of the two limiting blocks 207 are fixed to the top of the upper mold 101. A cylindrical hole 218 is opened on the other side of the upper mold 101. One end of the cutter 204 movably penetrates through the other side of the upper mold 101. One end of the cutter 204 is in contact with the outer wall of the round tube 205 near the bottom, facilitating the cutting off of the waste material at the top of the formed automotive rear cover under the action of the cutter 204.

[0039] According to Figure 2 、 Figure 4 、 Figure 6 and Figure 7 As shown in the figure, a placement table 103 is provided at the bottom of the upper mold 101. A controller 212 is installed on the top of the placement table 103. A buzzer 213 is installed on the top of the placement table 103. Rectangular blocks 104 are fixed to the four corners of the bottom of the placement table 103. A placement hole 105 is opened on the top of the placement table 103. The lower mold 102 is located inside the placement hole 105. Ventilation holes 106 are opened on the top of the upper mold 101 and the bottom of the lower mold 102, facilitating the provision of an alarm prompt to the staff under the action of the buzzer 213.

[0040] According to Figure 2 and Figure 6 - Figure 8 As shown in the figure, four first mounting holes 107 are opened on the top of the lower mold 102. Sealing plates 108 are installed at the output ends of the two ventilation holes 106. Connecting pipes 109 are fixedly penetrated through the surfaces of the two sealing plates 108. An air collecting shell 110 is installed on the front surface of the placement table 103. First hoses 111 are installed at the output ends of the two connecting pipes 109, facilitating the fixing of the lower mold 102 inside the placement hole 105 under the cooperation of the first mounting holes 107 and the bolt rods 116.

[0041] According to Figure 2 、 Figure 4 、 Figure 6 and Figure 7As shown, a blower 112 is installed on the front surface of the placement table 103. The output end of the air-gathering shell 110 is installed with a second hose 113, and the output end of the second hose 113 is connected to the input end of the blower 112. A plurality of rectangular grooves 114 are formed on the front surface, rear surface of the upper mold 101 and the front surface, rear surface of the lower mold 102. Four second mounting holes 115 are formed at the top of the upper mold 101, which is convenient for providing suction force for the input end of the connecting pipe 109 under the action of the blower 112.

[0042] According to Figure 2 、 Figure 4 、 Figure 6 and Figure 7 As shown, a bolt rod 116 is installed inside each of the first mounting holes 107 and each of the second mounting holes 115. The eight bolt rods 116 are divided into two groups. One end of one group of bolt rods 116 is threadedly connected to the bottom of the inner wall of the placement hole 105, and one end of the other group of bolt rods 116 is threadedly connected to the top of the lower mold 102. Two symmetrically arranged U-shaped frames 3 are installed on the top of the upper mold 101, which is convenient for tightly fixing the upper mold 101 and the lower mold 102 together under the cooperation of the second mounting holes 115 and the bolt rods 116.

[0043] The effect achieved by the entire mechanism is as follows: When it is necessary to use an injection mold to manufacture the rear cover of an automobile, the entire injection mold is directly moved to the required position. Then, with the cooperation of the bolt rod 116 and the second mounting hole 115, the upper mold 101 and the lower mold 102 are firmly fixed together. After that, the round tube 205 is moved to the feed port of the upper mold 101. At this time, the moving round tube 205 will drive the connected ring block 206 to move. At the same time, with the cooperation of the two limiting rods 211 and the two limiting grooves 208, the two clamping blocks 210 are moved in opposite directions. At this time, the two moving clamping blocks 210 will respectively stretch the corresponding first springs 209. When the two clamping blocks 210 respectively move into the two limiting grooves 208, the round tube 205 is directly moved completely to the feed port of the upper mold 101. At this time, the ring block 206 is just between the two limiting blocks 207. Then, the two clamping blocks 210 are released. At this time, under the action of the corresponding first springs 209 and the limiting grooves 208, the two limiting blocks 207 are directly reset to the initial position. At this time, the opposite sides of the two reset limiting blocks 207 just slide and are embedded in the front surface and the rear surface of the ring block 206 respectively. At this time, the round tube 205 can be fixed. Then, the prepared injection molding machine is connected to the input end of the round tube 205, and at the same time, the first hose 111 is connected to the corresponding connecting pipe 109. Then, the injection molding machine injects the molten plastic into the space between the upper mold 101 and the lower mold 102 through the round tube 205 under high pressure. When enough molten plastic is injected between the two, the injection of the molten plastic is directly stopped, and the injection molding machine is separated from the round tube 205. At the same time, the fan 112 is directly started. At this time, a large suction force is generated at the input end of the started fan 112. At this time, with the cooperation of the second hose 113, the two input ends of the air collecting shell 110 obtain the suction force. Then, through the cooperation of the two first hoses 111, the two sealing plates 108 and the two connecting pipes 109, the gas flow inside the corresponding ventilation holes 106 is directly driven, so as to take away the heat dissipated from the upper mold 101 and the lower mold 102 into the corresponding ventilation holes 106, and realize the rapid cooling of the injection-molded rear cover of the automobile. At the same time, the controller 212 is started, and the minimum temperature threshold is set. When the controller 212 is started, the temperature sensor 220 will also detect the temperature of the manufactured rear cover of the automobile at all times through the cooperation of the heat conduction block 219, and transmit the detected data to the inside of the controller 212 in the form of an electric signal. Then, the controller 212 will detect the received temperature data and the previously set minimum temperature threshold. When the temperature data received by the controller 212 is less than the previously set minimum temperature threshold, the controller 212 will send a prompt command to the buzzer 213. When the buzzer 213 receives the command, the buzzer 213 will give an alarm prompt. At this time, the staff will take out the round tube 205 from the feed port of the upper mold 101.After that, the controller 212 is used to control the start of the electric push rod 202. At this time, the started electric push rod 202 will directly drive the cutting knife 204 to move horizontally under the cooperation of the connecting rod 215, the connecting plate 214, the U-shaped block 201, the rectangular plate 203 and the fixing bolt 217. When the cutting knife 204 moves continuously and touches the excess waste material on the top of the rear car cover and continues to move, the excess waste material on the top of the rear car cover can be cut off, avoiding the need for other equipment to perform cutting operations later, increasing the workload and reducing the work efficiency. When the cutting knife 204 completes the cutting operation, at this time, the controller 212 will control the telescopic end of the electric push rod 202 to move back, driving the cutting knife 204 to reset to the initial position. After the cutting knife 204 resets to the initial position, the controller 212 controls the electric push rod 202 to stop. Then, the bolt rod 116 installed on each second mounting hole 115 is removed. After that, the upper mold 101 is removed from the lower mold 102. Finally, the manufactured rear car cover is taken out from the inside of the lower mold 102.

[0044] Among them, the fan 112, the controller 212, the buzzer 213 and the temperature sensor 220 are all prior arts, and their components and working principles are all public technologies, and no further explanation will be given here.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An injection mold for a rear cover of an automobile, characterized in that: It comprises an injection molding mechanism, and a cutting mechanism is arranged on the surface of the injection molding mechanism; The cutting mechanism includes a U-shaped block, a round tube, two limit blocks, a controller, a buzzer and a cylindrical hole. An electric push rod is installed on the top of the inner wall of the U-shaped block, a rectangular plate is fixed to the output end of the electric push rod, a connecting plate is installed on one side of the rectangular plate, a cutter is fixed on one side of the connecting plate, a circular ring block is fixedly sleeved on the outer wall of the round tube, limit grooves are provided on the opposite sides of the two limit blocks, first springs are installed on the inner walls of the two limit grooves, blocks are slidably connected to the inside of the two limit grooves, limit rods are arranged inside the two first springs, two connecting rods are movably penetrated on one side of the connecting plate, second springs are movably sleeved on the outer surfaces of the two connecting rods, fixing bolts are threadedly connected to the same end of the two connecting rods, a heat conductive block is fixed to the inside of the cylindrical hole, and a temperature sensor is installed at the entrance of the cylindrical hole.

2. The automobile rear cover injection mold according to claim 1, characterized in that: The opposite sides of the two clamping blocks are respectively slidably embedded in the front surface and the rear surface of the circular ring block, and the opposite sides of the two clamping blocks are respectively installed with the opposite ends of the two first springs.

3. The automobile rear cover injection mold according to claim 1, characterized in that: The opposite sides of the two limit rods are fixed to the inner walls of the two limit grooves respectively, and the opposite sides of the two limit rods are movable through the opposite sides of the two clamping blocks respectively, and the same end of the two second springs is installed on one side of the connecting plate.

4. The automobile rear cover injection mold according to claim 1, characterized in that: The detection end of the temperature sensor is in contact with the surface of the heat-conducting block, the controller is electrically connected to the buzzer, the controller is electrically connected to the temperature sensor, and the controller is electrically connected to the electric push rod.

5. The automobile rear cover injection mold according to claim 1, characterized in that: The injection molding mechanism includes an upper mold, a lower mold is arranged at the bottom of the upper mold, one side of the U-shaped block is fixed to the other side of the upper mold, the bottom end of the round tube movably passes through the top of the upper mold, the same end of the two connecting rods is fixed to the other side of the upper mold, and the same end of the two second springs is installed to the other side of the upper mold.

6. The automobile rear cover injection mold according to claim 5, characterized in that: The bottoms of the two limit blocks are fixed to the top of the upper mold, the cylindrical hole is opened on the other side of the upper mold, one end of the cutter movably passes through the other side of the upper mold, and one end of the cutter contacts the outer wall of the round tube near the bottom.

7. The automobile rear cover injection mold according to claim 5, characterized in that: A placing table is provided at the bottom of the upper mold, the controller is installed on the top of the placing table, the buzzer is installed on the top of the placing table, rectangular blocks are fixed at the four corners of the bottom of the placing table, a placing hole is opened on the top of the placing table, the lower mold is inside the placing hole, and ventilation holes are opened on the top of the upper mold and the bottom of the lower mold.

8. The automobile rear cover injection mold according to claim 7, characterized in that: Four first mounting holes are provided on the top of the lower mold, sealing plates are installed at the output ends of the two vent holes, connecting pipes are fixedly passed through the surfaces of the two sealing plates, a gas gathering shell is installed on the front surface of the placement table, and first hoses are installed at the output ends of the two connecting pipes.

9. The automobile rear cover injection mold according to claim 8, characterized in that: A fan is installed on the front surface of the placement table, and a second hose is installed at the output end of the gas gathering shell. The output end of the second hose is connected to the input end of the fan. The front surface and rear surface of the upper mold and the front surface and rear surface of the lower mold are each provided with a plurality of rectangular grooves, and four second mounting holes are provided on the top of the upper mold.

10. The automobile rear cover injection mold according to claim 8, characterized in that: A bolt rod is installed inside each of the first mounting holes and inside each of the second mounting holes, and the eight bolt rods are divided into two groups, one end of the bolt rods in one group is threadedly connected to the bottom of the inner wall of the placement hole, and one end of the bolt rods in the other group is threadedly connected to the top of the lower mold, and two symmetrical U-shaped frames are installed on the top of the upper mold.

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