Injection mold for producing storage barrel cover

Abstract

The utility model discloses an injection mold for producing a storage barrel cover, which comprises a movable mold seat plate, a movable mold fixing plate, a core plate, a cavity plate, a fixed mold fixing plate and a fixed mold seat plate, the movable mold seat plate is connected with the movable mold fixing plate through a square iron cushion block, the core plate is arranged on the movable mold fixing plate, the cavity plate is arranged on the fixed mold fixing plate, and the fixed mold seat plate is connected with the movable mold fixing plate through a square iron cushion block. The fixed mold fixing plate is arranged on the fixed mold seat plate, a sprue bush penetrates through the centers of the fixed mold fixing plate, the fixed mold seat plate and the mold cavity plate, a main runner is arranged in the sprue bush, the mold core plate and the mold cavity plate are respectively provided with a corresponding shunting groove, the shunting grooves form shunting runners after mold closing, the main runner is communicated with the shunting runners, and runner openings are formed in the end parts of the shunting runners. A cutter groove is formed in a pouring gate opening, and a cutter assembly corresponding to the cutter groove is arranged on the cavity plate. When the die is closed, the cutter assembly is inserted into the cutter groove, when the die is opened, the cutter assembly comes out of the cutter groove to cut off the water gap material, automatic shearing of the water gap material is achieved, time and labor are saved, cost is reduced, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould equipment technical field, concretely relates to a kind of injection mould for producing storage barrel cover. BACKGROUND

[0002] Injection molding is the most common method in plastics processing, one of the most important injection mold has been widely used, when producing plastic barrel cover of storage barrel, injection mold is also used for injection molding, molten plastic material is poured into mold cavity, and injection molding product is formed after cooling and solidification. However, after injection molding of injection molding part, product is connected with cold material head through water gate material, at this time, water gate material needs to be cut off to collect and use product, currently, product is taken out after being connected with cold material head, and water gate is cut off one by one by artificial post-processing to realize separation of cold material head and product. The cutting method needs to increase processing procedure, not only prolongs the whole production time, causes production efficiency to be low, but also increases labor cost, which is not conducive to production. SUMMARY

[0003] The main purpose of the utility model is to overcome the defects in the above background art, and provide an injection mold for producing storage barrel cover.

[0004] To achieve the above object, the injection mold for producing storage barrel cover provided by the utility model comprises a movable mold base plate, a movable mold fixing plate, a core plate, a cavity plate, a fixed mold fixing plate and a fixed mold base plate. Square iron pads are arranged on the movable mold base plate. The movable mold fixing plate is fixedly arranged on the square iron pads. The core plate is arranged on the movable mold fixing plate. The cavity plate is arranged on the fixed mold fixing plate. The fixed mold fixing plate is arranged on the fixed mold base plate. A sprue bushing is arranged in the center of the fixed mold fixing plate, the fixed mold base plate and the cavity plate. A main sprue is arranged in the sprue bushing. Corresponding flow dividing grooves are arranged in the core plate and the cavity plate. The flow dividing grooves form a flow dividing sprue after the core plate and the cavity plate are closed. The main sprue is communicated with the flow dividing sprue. The flow dividing sprue is provided with a sprue gate at two ends. A cutter groove is arranged at the sprue gate. The cavity plate is provided with a cutter assembly corresponding to the cutter groove. After the mold is closed, the end of the cutter assembly is inserted into the cutter groove. When the mold is opened, the cutter assembly pulls and cuts off the water gate material at the sprue gate from the cutter groove, so that the water gate material is automatically cut, and the manual cutting process after the mold is opened is not needed.

[0005] Further optimize the technical scheme, the cutter assembly includes a cutter head and a cutter rod, the cutter rod is connected with the cavity plate, the bottom end of the cutter rod extends out of the mold closing surface of the cavity plate, the cutter head spans both sides of the gate and is connected with the bottom end of the cutter rod, the cutter head and the cutter rod are integrally formed to form a U-shaped structure, and the bottom end corresponds to the cutter groove. When the mold is closed, the cutter head completely extends into the bottom of the cutter groove, and the cutter rods on both sides vertically extend into both ends of the cutter groove, filling the entire cutter groove. When the mold is opened, the cutter head is pulled by the cutter rods on both sides to pull the gate material, realizing automatic cutting of the gate in the mold.

[0006] Further optimize the technical scheme, the cavity plate is provided with a first through hole, the cutter rod passes through the first through hole and is slidably connected with the cavity plate, the top end of the cutter rod is detachably connected with a limiting rod, the fixed mold plate is provided with a receiving blind hole, the limiting rod is movably arranged in the receiving blind hole, and a buffer spring is arranged on the end of the limiting rod away from the cutter rod. Through the cooperation of the first through hole, the receiving blind hole, the limiting rod and the buffer spring, when there is residual glue in the cutter groove, the cutter head will push the cutter rod upward when it is pressed against the residual glue, and at the same time, the limiting rod will also compress the buffer spring upward, realizing the buffering of the cutter head and the cutter rod, and avoiding the breakage of the cutter head and the cutter rod.

[0007] Further optimize the technical scheme, the limiting rod has an outer diameter larger than the size of the cutter rod, so that the bottom end of the limiting rod forms a clamping surface that cannot pass through the first through hole. By clamping the first through hole outside, the cutter rod is prevented from being separated from the first through hole.

[0008] Further optimize the technical scheme, the top end of the cutter rod is vertically provided with a threaded column, and the bottom end of the limiting rod is vertically provided with a threaded hole corresponding to the threaded column. The limiting rod is connected with the cutter rod through the cooperation of the threaded hole and the threaded column, facilitating disassembly, replacement and maintenance in the later period.

[0009] Further optimize the technical scheme, the side wall of the fixed mold plate is provided with a second through hole penetrating into the receiving blind hole, and a position sensor is arranged in the second through hole. The position of the limiting rod is detected by the position sensor to determine whether there is residual glue in the cutter groove, so as to avoid that the cutter groove is blocked by too much residual glue and cannot be discovered in time, affecting injection molding.

[0010] Further optimize the technical scheme, the movable mold fixed plate is provided with guide columns around, and the fixed mold fixed plate is provided with guide sleeves corresponding to the guide columns. Through the cooperation of the guide columns and the guide sleeves, the mold closing is ensured to be smooth.

[0011] Further optimization technical scheme, still include push rod base plate and push rod fixed plate, the push rod fixed plate is fixedly arranged on the push rod base plate, the push rod base plate and the push rod fixed plate are movably arranged between two the square iron base plate, the push rod fixed plate is equipped with a plurality of push rod through to the core plate, the push rod fixed plate around vertically is equipped with reset rod, the reset rod is equipped with reset spring, the movable die seat plate center is equipped with a ejection hole, when opening mould, by pushing push rod base plate and push rod fixed plate, and then push push rod forward, make the cold storage barrel cover product after cooling from the core plate, facilitate demoulding.

[0012] Further optimization technical scheme, the push rod fixed plate center vertically is equipped with pull material rod, the pull material rod is through to the core plate, the main runner's directly below is equipped with cold material well, the top end of pull material rod extends to the cold material well.The pull material rod holds the condensed material when opening mould, ensure that cold material head can be smoothly pulled out from the sprue bush, further facilitate demoulding.

[0013] Further optimization technical scheme, the push rod base plate and the movable die seat plate between be equipped with rubbish nail, the rubbish nail is fixed on the movable die seat plate, by through rubbish nail make movable die seat plate and push rod base plate between gap, with accommodate some impurities or rubbish, prevent movable die seat plate with push rod base plate between because of rubbish or dust lead to push rod can not completely reset, influence the forming of plastic part.

[0014] The beneficial effects of the utility model include: after closing, the end of the cutter assembly is inserted into the cutter groove, the end of the cutter assembly is embedded in the runner, the rubber material flows through the main runner, the shunt runner and the runner in turn, and then passes through the bottom end of the cutter assembly to enter the glue injection cavity, when opening, the cutter assembly moves away from the core plate, the end of the cutter assembly pulls and cuts off the nozzle material at the runner opening, realizing automatic shearing of the nozzle material, without manual cutting process after ejection, simplifying the process flow, saving time and labor, reducing cost and improving production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the schematic diagram of the injection mold after opening of the utility model embodiment.

[0016] Figure 2 It is Figure 1 The local enlarged schematic diagram of A in

[0017] Figure 3 It is the schematic diagram of the injection mold after closing of the utility model embodiment.

[0018] Figure 4 It is the assembly schematic diagram of the cavity plate, the fixed die fixed plate and the cutter assembly in the utility model embodiment.

[0019] Figure 5 is a schematic view of a cutter assembly in the embodiments of the present application.

[0020] Figure 6 is a top view perspective schematic view of an injection mold in the embodiments of the present application.

[0021] Figure 7 is Figure 6 is a cutaway schematic view of A-A in the middle.

[0022] Reference signs: 1 moving mold base plate; 101 ejection hole; 2 moving mold fixed plate; 201 guide column; 3 core plate; 4 cavity plate; 401 first through hole; 5 fixed mold fixed plate; 501 accommodating blind hole; 502 second through hole; 503 guide sleeve; 6 fixed mold base plate; 7 square iron pad; 8 sprue bushing; 9 main runner; 10 shunt groove; 11 shunt runner; 12 runner gate; 13 cutter groove; 14 cutter assembly; 1401 cutter head; 1402 cutter bar; 1403 limiting rod; 1404 buffer spring; 1405 clamping surface; 1406 threaded column; 1407 threaded hole; 15 position sensor; 16 push rod pad; 17 push rod fixed plate; 18 push rod; 19 reset rod; 20 reset spring; 21 material pulling rod; 22 cold material well; 23 garbage nail. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved in the embodiments of the present application more clear and obvious, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be for fixing or for circuit communication.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0027] Please refer to Figures 1 to 7 In one embodiment, the injection mold for producing storage barrel covers is disclosed, which comprises a movable mold base plate 1, a movable mold fixed plate 2, a core plate 3, a cavity plate 4, a fixed mold fixed plate 5 and a fixed mold base plate 6. Square iron pads 7 are arranged on both sides of the top surface of the movable mold base plate 1. The movable mold fixed plate 2 is fixedly arranged on the square iron pads 7 on both sides. The core plate 3 is fixedly arranged in the cavity of the middle part of the movable mold fixed plate 2. The cavity plate 4 is fixedly arranged in the cavity of the middle part of the fixed mold fixed plate 5. Specifically, two injection cores for producing storage barrel covers are arranged on one core plate 3. Correspondingly, two injection cavities for producing storage barrel covers are arranged on one cavity plate 4. One clamping can produce two storage barrel covers. The fixed mold fixed plate 5 is arranged on the bottom surface of the fixed mold base plate 6. A sprue bushing 8 is arranged through the center of the fixed mold fixed plate 5, the fixed mold base plate 6 and the cavity plate 4. A main runner 9 is arranged in the sprue bushing 8. Corresponding distribution grooves 10 are arranged on the core plate 3 and the cavity plate 4. When the core plate 3 and the cavity plate 4 are clamped, the distribution grooves 10 on both sides are combined to form a distribution runner 11. The main runner 9 is in communication with the distribution runner 11. Specifically, the main runner 9 and the distribution runner 11 are vertically communicated to form a reverse "T" shape. Runner ports 12 are arranged at both ends of the distribution runner 11. The runner ports 12 are laterally communicated to the two glue injection cavities formed after the core plate 3 and the cavity plate 4 are clamped. Cutter grooves 13 are arranged at both ends of the runner ports 12. Cutter assemblies 14 corresponding to the cutter grooves 13 are arranged on the cavity plate 4. Specifically, the embodiment adopts a lateral glue feeding mode for injection molding. The cutter assemblies 14 are also provided with two groups. When clamped, the end part of the cutter assembly 14 extends into the cutter groove 13. In the present application, the end part of the cutter assembly 14 is inserted into the cutter groove 13 after clamping, so that the end part of the cutter assembly 14 is horizontally arranged on both sides of the runner port 12. The glue material enters the distribution runner 11 from the main runner 9 in the sprue bushing 8 and is divided into two paths. The two paths of glue material enter the runner ports 12 on both sides and pass through the middle part of the bottom end of the cutter assembly 14 to enter the glue injection cavity. When the glue material is fed and pressure maintained for a certain period of time and cooled, the mold is opened. When the mold is opened, the cutter assembly 14 moves away from the core plate 3. The end part of the cutter assembly 14 pulls and cuts off the water port material at the runner port 12 from the cutter groove 13, realizing automatic cutting of the water port material. The process flow is simplified, time and manpower are saved, cost is reduced, and production efficiency is improved.

[0028] In a specific example, the cutter assembly 14 includes a cutter head 1401 and a cutter rod 1402, the cutter rod 1402 is connected with the cavity plate 4, the bottom end of the cutter rod 1402 extends out of the mold closing surface of the cavity plate 4, the cutter head 1401 is horizontally connected with the bottom end of the cutter rod 1402 and straddles both sides of the runner gate 12, so that the cutter head 1401 and the cutter rod 1402 are integrally formed to form a U-shaped structure, and the bottom end corresponds to the cutter groove 13, when the mold is closed, the cutter head 1401 is completely inserted into the bottom of the cutter groove 13, and the cutter rods 1402 on both sides are vertically inserted into both ends of the cutter groove 13, so that the entire cutter groove 13 is filled, avoiding the glue being squeezed into the cutter groove 13, when the mold is opened, the nozzle material at the runner gate 12 is pulled in the opposite direction of the mold opening by the cutter head 1401 driven by the cutter rods 1402 on both sides, so that the automatic cutting of the nozzle in the mold is realized.

[0029] In a specific example, a first through hole 401 is vertically arranged on the cavity plate 4, the cutter rod 1402 vertically upwardly passes through the first through hole 401 and is slidably connected with the cavity plate 4, a limiting rod 1403 is detachably connected at the top end of the cutter rod 1402, a receiving blind hole 501 corresponding to the first through hole 401 is vertically arranged on the fixed die plate 5, the limiting rod 1403 is movably arranged in the receiving blind hole 501, and a buffer spring 1404 is arranged at the end of the limiting rod 1403 away from the cutter rod 1402, specifically, the hole type of the first through hole 401 corresponds to the outer wall of the cutter rod 1402, both are rectangular or circular structures, so that the first through hole 401 and the cutter rod 1402 are gap-fitted and can be slidably connected, similarly, the hole type of the receiving blind hole 501 also corresponds to the outer wall of the limiting rod 1403, when the glue is left in the cutter groove 13 during mold closing, the cutter head 1401 and the cutter rod 1402 cannot be completely inserted into the cutter groove 13 in place, resulting in hard extrusion of the cutter head 1401 and the cutter rod 1402, which is prone to breakage, through the cooperation of the first through hole 401, the receiving blind hole 501, the limiting rod 1403 and the buffer spring 1404, when the glue is left in the cutter groove 13, the cutter head 1401 pressed against the residual glue will drive the cutter rod 1402 to move upwardly, at the same time, the limiting rod 1403 will also drive the buffer spring 1404 to compress upwardly, so as to realize the buffering of the cutter assembly 14, reduce the risk of breakage of the cutter head 1401 and the cutter rod 1402, and at the same time, the cutter head 1401 is inserted into the cutter groove 13 as much as possible, avoiding the cutter head 1401 blocking the runner gate 12 and affecting the feeding pressure.

[0030] In a specific example, the outer diameter of the limiting rod 1403 is larger than the size of the cutter rod 1402, so that the bottom end of the limiting rod 1403 forms a stop surface 1405 and cannot pass through the first through hole 401. During installation, the two cutter rods 1402 pass through the corresponding two first through holes 401 on the cavity plate 4 upwardly, and then the limiting rod 1403 is fixedly arranged at the top end, since the size of the limiting rod 1403 is larger, it cannot pass downwardly through the first through hole 401, preventing the cutter rod 1402 from being separated from the first through hole 401.

[0031] In a specific example, a threaded column 1406 is vertically arranged at the top end of the cutter bar 1402, and a threaded hole 1407 corresponding to the threaded column 1406 is vertically arranged at the bottom end of the limiting rod 1403. When the cutter bar 1402 is inserted upward from the bottom through the first through hole 401, the threaded hole 1407 of the limiting rod 1403 is connected with the threaded column 1406 through cooperation, facilitating disassembly and replacement.

[0032] In a preferred embodiment, a second through hole 502 is arranged in the side wall of the fixed plate 5 of the fixed mold, and a position sensor 15 is arranged in the second through hole 502. Specifically, the second through hole 502 is in vertical communication with the accommodating blind hole 501, and the position sensor 15 is used to detect the position of the limiting rod 1403. When there is residual glue in the cutter groove 13, the limiting rod 1403 will be lifted up, and when there is no residual glue, the limiting rod 1403 will be pressed down by the buffer spring 1404. By detecting the position of the limiting rod 1403, it can be determined whether there is residual glue in the cutter groove 13. If the cutter groove 13 is blocked due to too much residual glue and the cutter head 1401 cannot be inserted into the gate 12, the position sensor 15 can avoid the problem and affect the injection molding.

[0033] In a specific example, guide columns 201 are arranged around the movable mold fixed plate 2, and guide sleeves 503 corresponding to the guide columns 201 are arranged on the fixed mold fixed plate 5. Through the cooperation of the guide columns 201 and the guide sleeves 503, the centering property of the mold closing is ensured.

[0034] In a preferred embodiment, the injection mold for producing the storage barrel cover further comprises a push rod base plate 16 and a push rod fixed plate 17, the push rod fixed plate 17 is fixedly arranged on the push rod base plate 16, the push rod base plate 16 and the push rod fixed plate 17 are movably arranged between the two iron pads 7, a plurality of push rods 18 are arranged on the push rod fixed plate 17 and penetrate the core plate 3, a plurality of reset rods 19 are vertically arranged around the push rod fixed plate 17, reset springs 20 are sleeved on the reset rods 19, and a knockout hole 101 is arranged at the center of the movable mold base plate 1. When the mold is opened, the movable mold base plate 1, the movable mold fixed plate 2 and the core plate 3 are driven to retreat by the injection equipment (not shown in the figure), the ejector rod on the injection equipment penetrates the knockout hole 101 and pushes against the push rod base plate 16, thereby pushing the push rods 18 on the push rod fixed plate 17 forward to make the cooled storage barrel cover separate from the core plate 3.

[0035] In the specific example, a pulling rod 21 is vertically arranged in the center of the push rod fixing plate 17 and penetrates the core plate 3, a cold material well 22 is arranged right below the main runner 9, the top end of the pulling rod 21 extends into the cold material well 22, specifically, the cold material well 22 is arranged in the middle of the flow dividing groove 10 of the core plate 3, during mold clamping and glue injection, the cold material well 22 stores the cold material head generated during the injection interval, so as to prevent the cold material from entering the cavity and affecting the quality of the plastic part, at the same time, the pulling rod pulls the condensed material, so as to ensure that the glue can smoothly fill the cavity; during mold opening, the pulling rod 21 pulls the condensed material, so as to ensure that the cold material head can be smoothly pulled out of the sprue bush 8, which facilitates demolding; at the same time, the pulling rod 21 pulls the cold material head, and the tool bit 1401 pulls the gate material in the opposite direction, which facilitates cutting.

[0036] In the specific example, a garbage pin 23 is arranged between the push rod base plate 16 and the movable die seat plate 1, the garbage pin 23 is fixed on the movable die seat plate 1, and the gap between the movable die seat plate 1 and the push rod base plate 16 is generated through the garbage pin 23, so as to accommodate some impurities or garbage, so as to prevent the push rod 18 from being unable to reset due to the garbage or dust between the movable die seat plate 1 and the push rod base plate 16, thereby ensuring the normal molding of the plastic part.

[0037] The above is a further detailed description of the utility model in combination with specific / preferred embodiments, and cannot be regarded as a limitation on the specific implementation of the utility model. For ordinary skilled persons in the technical field to which the utility model belongs, some substitutions or modifications can be made to the described embodiments without departing from the concept of the utility model, and these substitutions or modifications shall be regarded as falling within the protection scope of the utility model. In the description of the specification, the description of the reference terms "an embodiment", "some embodiments", "a preferred embodiment", "an example", "a specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In the description of the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In the case of not contradicting each other, the skilled person in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples. Although the embodiments of the utility model and their advantages have been described in detail, it should be understood that various changes, substitutions and modifications can be made herein without departing from the protection scope of the patent application.

Claims

1. An injection mold for producing a drum lid, characterized in that: The utility model provides a mould core and cavity plate of the type of the core -cavity -gate -moulding -mould, including movable die base plate, movable die fixed plate, core plate, cavity plate, fixed die fixed plate and fixed die base plate, be equipped with square iron pad on movable die base plate, movable die fixed plate fixedly erect on square iron pad, core plate sets up on movable die fixed plate, cavity plate sets up on fixed die fixed plate, fixed die fixed plate sets up on fixed die base plate, fixed die fixed plate, fixed die base plate and cavity plate center are equipped with sprue bushing that penetrates, be equipped with main runner in sprue bushing, all set up corresponding shunt groove on core plate and cavity plate, the shunt groove forms a shunt runner after core plate and cavity plate clamping, main runner with shunt runner intercommunication, both ends of shunt runner are equipped with runner respectively, be equipped with cutter groove at runner, be equipped with cutter assembly that corresponds with cutter groove on cavity plate.

2. The injection mold for producing a storage tub lid of claim 1, wherein: The cutter assembly includes a cutter head and a cutter rod, the cutter rod is connected with the cavity plate, the bottom end of the cutter rod extends out of the clamping surface of the cavity plate, the cutter head spans both sides of the runner and is connected with the bottom end of the cutter rod, the cutter head and the cutter rod are integrally formed into a U-shaped structure, and the bottom end corresponds to the cutter groove.

3. The injection mold for producing a receiving tub cover according to claim 2, wherein: The cavity plate is provided with a first through hole, the cutter rod passes through the first through hole and is slidably connected with the cavity plate, the top end of the cutter rod is detachably connected with a limiting rod, the fixed die fixed plate is provided with a receiving blind hole, the limiting rod is movably arranged in the receiving blind hole, and a buffer spring is arranged on the end of the limiting rod away from the cutter rod.

4. The injection mold for producing a receiving tub cover according to claim 3, wherein: The outer diameter of the limiting rod is larger than the size of the cutter rod, so that the bottom end of the limiting rod forms a clamping surface that cannot pass through the first through hole.

5. The injection mold for producing a receiving tub cover according to claim 4, characterized in that: The top end of the cutter rod is vertically provided with a threaded column, and the bottom end of the limiting rod is vertically provided with a threaded hole corresponding to the threaded column.

6. The injection mold for producing a cover for a holding barrel according to any one of claims 3 to 5, characterized in that: The side wall of the fixed die fixed plate is provided with a second through hole penetrating to the receiving blind hole, and a position sensor is arranged in the second through hole.

7. The injection mold for producing a receiving tub cover according to claim 6, characterized in that: The movable die fixed plate is provided with guide columns around, and the fixed die fixed plate is provided with guide sleeves corresponding to the guide columns.

8. The injection mold for producing a receiving tub cover according to claim 7, wherein It also includes a push rod pad and a push rod fixed plate, the push rod fixed plate is fixedly arranged on the push rod pad, the push rod pad and the push rod fixed plate are movably arranged between the two square iron pads, the push rod fixed plate is provided with a plurality of push rods penetrating to the core plate, the push rod fixed plate is vertically provided with a reset rod around, the reset rod is sleeved with a reset spring, and the movable die base plate is provided with a ejection hole in the center.

9. The injection mold for producing a receiving tub cover according to claim 8, wherein The center of the push rod fixed plate is vertically provided with a material pulling rod, the material pulling rod penetrates to the core plate, and the lower side of the main runner is provided with a cold material well, and the top end of the material pulling rod extends into the cold material well.

10. The injection mold for producing a receiving tub cover according to claim 9, wherein A garbage pin is arranged between the push rod pad and the movable die base plate, and the garbage pin is fixed on the movable die base plate.

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