Sole injection molding equipment for safety protection shoes

Abstract

The invention belongs to the technical field of sole production, and discloses sole injection molding equipment for safety protection shoes, which comprises a cooling pond, the cooling pond is filled with cooling liquid, a mold is fixedly mounted on the right side in the cooling pond, a cover plate is arranged at the top end of the mold, and the bottom end of the cover plate is in contact with the top end of the mold. An injection cavity is formed in the mold, a longitudinal clamping groove is formed in the left side, close to the top end, of the cover plate, and a longitudinal clamping block is movably clamped in the longitudinal clamping groove. The cooling liquid is utilized and matched with the action of the power assembly, so that before discharging, the cooling liquid is extracted to serve as power, displacement of the cover plate relative to the mold is achieved through pushing of the power assembly, then opening of the top end of the mold is automatically completed, and the whole process can be automatically completed; and the problem that a traditional device is difficult to separate due to adhesion of plastics is solved, separation is rapidly achieved, then subsequent discharging is facilitated, and the injection molding efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sole production, and in particular relates to sole injection molding equipment for safety protection shoes. Background Art

[0002] Safety shoes, also known as safety shoes or labor protection shoes, are specially made shoes for special workers to provide sole protection. According to different working environments and protection requirements, safety shoes can be divided into many types, such as anti-smashing protective shoes, anti-puncture protective shoes, oil-resistant protective shoes, acid-resistant and alkali-resistant protective shoes, anti-slip protective shoes, cold-proof protective shoes, and anti-static protective shoes. The soles of safety shoes will be processed during processing. Due to the special use environment, some safety shoes often use plastic as the sole material, and injection molding is used to complete the molding of the soles.

[0003] When performing injection molding on the sole, an injection molding mold is generally used in conjunction with molten plastic to complete the injection molding process. The injection molding mold is generally composed of an upper cover plate and a mold. When in use, the injection molding process can be completed by tightly installing the upper cover plate on top of the mold, injecting molten plastic into the interior of the mold, and cooling the mold. When this injection molding method is used, the cover plate is difficult to remove due to the adhesion of the plastic after molding, which in turn makes it difficult to discharge the material. At the same time, the top of the sole needs to be trimmed before discharging, resulting in low overall injection molding efficiency.

[0004] After trimming is completed, the molded sole needs to be taken out. In the prior art, the mold is generally inverted and then taken out. Since plastic has a certain viscosity, the side of the mold needs to be knocked when the mold is inverted before the sole can be taken out. The overall operation process is relatively complicated. At the same time, frequent knocking on the mold will also lead to a decrease in mold accuracy, which urgently needs to be improved. Summary of the invention

[0005] The object of the present invention is to provide a sole injection molding device for safety shoes to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical scheme: a sole injection molding device for safety protection shoes, comprising a cooling pool, the interior of the cooling pool is filled with coolant, a mold is fixedly installed on the right side of the interior of the cooling pool, a cover plate is provided at the top of the mold, the bottom end of the cover plate is in contact with the top of the mold, an injection cavity is opened inside the mold, a longitudinal groove is provided on the left side of the cover plate near the top, a longitudinal block is movably connected inside the longitudinal groove, a scraper is fixedly installed on the bottom end of the longitudinal block, a mounting frame is fixedly installed on the left side of the cover plate, an auxiliary discharging assembly located between the mounting frame and the cover plate is fixedly installed on the top of the longitudinal block, the left end of the mounting frame is connected to a power assembly located inside the cooling pool, the bottom end of the scraper and the bottom end of the cover plate are on the same horizontal plane, and a three-way valve is provided above the cover plate on the side close to the power assembly.

[0007] When performing injection molding of the shoe sole, the cooling pool may be filled with coolant, and an external cooling method may be provided to forcefully cool the coolant. At the same time, the plastic may be melted to ensure that the plastic is melted, thereby completing preparations before injection molding.

[0008] As a further technical solution of the present invention, a material injection port is provided at the top of the three-way valve, and a reversing valve is fixedly connected to the front and rear sides of the bottom of the three-way valve. The relatively far ends of the two reversing valves are fixedly connected to a material delivery pipe, and the other end of the material delivery pipe is connected to the injection cavity.

[0009] When injecting materials, the molten plastic can be injected into the three-way valve through the injection port at the top of the three-way valve. At this time, the molten plastic can enter the interior of the two reversing valves and be injected into the injection cavity through the feed pipe until the injection cavity is completely filled, completing the injection process of the molten plastic.

[0010] As a further technical solution of the present invention, transverse guide blocks are fixedly installed on both front and rear ends of the cover plate close to the left side, and transverse guide rails are fixedly installed on the left and right sides of the top of the mold. The transverse guide blocks and the transverse guide rails are movably connected, and the cover plate is displaced left and right relative to the mold.

[0011] Before the plastic is injected, the cover plate and the mold can be kept in the initial state, at which time the transverse guide block is located at the leftmost side of the transverse guide rail. At this time, the cover plate and the mold are aligned with each other, and the cover plate can completely block the injection cavity to complete the sealing process.

[0012] As a further technical solution of the present invention, the power assembly includes a locking frame, the inner side surface of the locking frame is fixedly sleeved with a water storage pipe, the top end of the water storage pipe away from the cover plate is fixedly connected to a water pump, the middle part of the water pump is connected to a water pump, and the end of the water pump pipe away from the water storage pipe is located near the bottom of the cooling pool.

[0013] As a further technical solution of the present invention, the bottom end of the water storage pipe away from the cover plate is fixedly connected to a drain pipe, and the output end of the drain pipe is located between the cover plate and the mold. One-way valves are installed inside the water pump pipe and the drain pipe, and the directions of the valves are respectively inward conduction and outward blockage and outward conduction and inward blockage.

[0014] As a further technical solution of the present invention, the water storage pipe is movably sleeved with a push plate, and the push plate is fixedly connected to a push rod located inside the water storage pipe at one end close to the cover plate, and the end of the push rod close to the cover plate passes through one side of the water storage pipe and is connected to the mounting frame, and the outer side surface of the push rod is movably sleeved with a limit spring, and the left and right ends of the limit spring are respectively connected to one end of the push plate and one end of the inner cavity of the water storage pipe.

[0015] As a further technical solution of the present invention, when the limit spring is in the initial state, the push plate is located at the leftmost position, and the cover plate is located directly above the mold and completely blocks the injection cavity.

[0016] After the injection of plastic is completed, the molten plastic in the injection cavity can be rapidly cooled by the coolant in the cooling pool. At this time, the plastic sole is formed and the discharging operation can be carried out.

[0017] At this time, negative pressure can be generated inside the water pump by turning on the water pump, and the coolant can be sucked into the water pump and into the water storage pipe at the same time. At this time, the drain pipe is kept in a closed state, and the continuously entering coolant exerts pressure on the push plate. At this time, the limit spring is compressed and drives the push rod to move to the right. At this time, the mounting frame can be pushed to move to the right, and the cover plate moves to the right under the guidance of the transverse guide block and the transverse guide rail. At this time, the cover plate moves relative to the mold until the transverse guide block moves to the rightmost side of the transverse guide rail, and then the top of the mold can be fully opened to wait for the discharge process.

[0018] By utilizing the coolant and cooperating with the power component, before discharging, the coolant is extracted as power, and the cover plate is moved relative to the mold by the push of the power component, thereby automatically opening the top of the mold. The whole process can be completed automatically, avoiding the problem of difficult separation due to plastic adhesion in traditional devices, quickly achieving separation, and facilitating subsequent discharging, thereby improving injection molding efficiency.

[0019] Before the cover plate moves to the right relative to the mold, the longitudinal clamping block can be clamped with the longitudinal clamping groove. When the cover plate moves to the right, the longitudinal clamping block can be driven to move to the right synchronously. At this time, the scraper can be driven to move to the right synchronously and scrape the sole surface inside the injection cavity to remove surface defects and complete the automatic trimming process.

[0020] By utilizing the displacement process of the cover plate relative to the mold before discharging, the top of the mold can be automatically opened while the scraper can be displaced simultaneously, thereby completing the automatic trimming process of the surface of the sole after molding. The entire process is completed simultaneously with the opening process of the mold before discharging, and there is no need for subsequent trimming process, which simplifies the processing and molding steps, thereby further improving the overall injection molding efficiency.

[0021] As a further technical solution of the present invention, the auxiliary discharging assembly includes an extension frame, the bottom end of the extension frame is connected to the middle part of the top of the longitudinal block, a mounting seat is fixedly installed on one side of the inner side of the extension frame, a movable frame is movably connected to the interior of the mounting seat through a rotating shaft, the movable frame rotates relative to the mounting seat, and an electromagnetic block is fixedly connected to the top of the movable frame.

[0022] As a further technical solution of the present invention, the interior of the mounting seat is made of cast iron, and when the movable frame is in an initial state, the movable frame and the mounting seat are perpendicular to each other.

[0023] As a further technical solution of the present invention, the bottom end of the movable frame is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to a scraper, and when the electric push rod is in an initial state, the bottom end of the scraper is higher than the bottom end of the scraper.

[0024] When the mold moves to the far right, the scraper also moves to the far right. At this time, the entire trimming process of the sole surface can be completed. At this time, the auxiliary discharging component moves to the far right, and the electric push rod is simultaneously turned on to extend to drive the scraper to move down, until the scraper moves down to the inside of the injection cavity and moves to one side of the sole. At this time, the power component can be synchronously controlled to reset, that is, the valve of the drain pipe is opened to release the coolant to the position between the cover plate and the mold. At this time, the limit spring automatically resets and drives the cover plate to move to the left;

[0025] The coolant released at this time will clean the surface of the sole and pull the auxiliary discharge component to the left. The power of the electromagnetic block can be turned on synchronously. The electromagnetic block will be adsorbed between the extension frame and rotate to the right. The scraper at the bottom will tilt to the upper left corner and cooperate with the displacement of the auxiliary discharge component. The molded sole can be tilted out of the injection cavity and taken out from the top of the mold to complete the auxiliary discharge process. After the tilting is completed, the auxiliary discharge component will automatically reset.

[0026] By utilizing the resetting process of the device, that is, the resetting return process, the trimmed sole surface is automatically cleaned by releasing the coolant that provides power. At the same time, the sole can be lifted from the injection cavity in cooperation with the auxiliary discharge component to complete the auxiliary discharge. The whole process is still completed automatically. There is no need for traditional devices to invert and knock the mold, which will not cause a decrease in mold accuracy. At the same time, the discharge efficiency is improved and the overall molding efficiency is improved.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. The present invention utilizes the coolant and cooperates with the power component to extract the coolant as power before discharging, and realizes the displacement of the cover relative to the mold through the push of the power component, thereby automatically completing the opening of the top of the mold. The whole process can be completed automatically, avoiding the problem of difficult separation due to adhesion of plastics in traditional devices, quickly achieving separation, and facilitating subsequent discharging, thereby improving the efficiency of injection molding.

[0029] 2. The present invention utilizes the displacement process of the cover plate relative to the mold before discharging, that is, realizes the automatic opening of the top of the mold, and can simultaneously realize the displacement of the scraper, thereby completing the automatic trimming process of the rear surface of the sole after molding. The whole process is completed synchronously with the opening process of the mold before discharging, and there is no need for subsequent trimming process, which simplifies the processing and molding steps, thereby further improving the overall injection molding efficiency.

[0030] 3. The present invention utilizes the resetting process of the device, that is, the resetting return process, and releases the coolant that provides power to automatically clean the trimmed sole surface. At the same time, the sole can be lifted from the injection cavity in cooperation with the auxiliary discharge component to complete the auxiliary discharge. The whole process is still completed automatically, and there is no need for the traditional device to invert and knock the mold, which will not cause a decrease in mold accuracy. At the same time, the discharge efficiency is improved, and the overall molding efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the present invention in a state where the cooling pool is hidden;

[0033] Figure 3 It is a schematic diagram of the matching structure of the cover plate, the mold, the three-way valve and the reversing valve of the present invention;

[0034] Figure 4 It is an exploded schematic diagram of the cover plate and the mold structure of the present invention;

[0035] Figure 5 It is a schematic diagram of the coordination of the scraper and the auxiliary discharging assembly structure of the present invention;

[0036] Figure 6 It is a separate schematic diagram of the power assembly structure of the present invention;

[0037] Figure 7 It is a cross-sectional schematic diagram of the internal structure of the power assembly of the present invention;

[0038] Figure 8 for Figure 4 A magnified schematic diagram of the structure in the middle.

[0039] In the figure: 1. cooling pool; 2. cover plate; 3. mold; 4. injection cavity; 5. longitudinal slot; 6. mounting frame; 7. transverse guide rail; 8. transverse guide block; 9. three-way valve; 10. reversing valve; 11. feed pipe; 12. longitudinal block; 13. scraper; 14. auxiliary discharge assembly; 141. extension frame; 142. mounting seat; 143. movable frame; 144. electromagnetic block; 145. electric push rod; 146. scraper; 15. power assembly; 151. locking frame; 152. water pump; 153. water pump; 154. water storage pipe; 155. drain pipe; 156. push plate; 157. push rod; 158. limit spring. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] like Figures 1 to 8 As shown, in an embodiment of the present invention, a sole injection molding device for safety protection shoes includes a cooling pool 1, the interior of the cooling pool 1 is filled with coolant, a mold 3 is fixedly installed on the right side of the interior of the cooling pool 1, a cover plate 2 is provided at the top of the mold 3, the bottom end of the cover plate 2 is in contact with the top of the mold 3, an injection cavity 4 is opened inside the mold 3, a longitudinal groove 5 is provided on the left side near the top of the cover plate 2, a longitudinal block 12 is movably connected inside the longitudinal groove 5, a scraper 13 is fixedly installed at the bottom end of the longitudinal block 12, a mounting frame 6 is fixedly installed on the left side of the cover plate 2, an auxiliary discharging assembly 14 located between the mounting frame 6 and the cover plate 2 is fixedly installed at the top of the longitudinal block 12, the left end of the mounting frame 6 is connected to a power assembly 15 located inside the cooling pool 1, the bottom end of the scraper 13 is on the same horizontal plane as the bottom end of the cover plate 2, and a three-way valve 9 is provided above the cover plate 2 on the side close to the power assembly 15.

[0042] When performing injection molding of the shoe sole, the cooling pool 1 may be filled with coolant, and an external cooling method may be provided to forcefully cool the coolant. At the same time, the plastic may be melted to ensure that the plastic is melted, thereby completing preparations before injection molding.

[0043] like Figure 2 and Figure 3 As shown, a material injection port is provided at the top of the three-way valve 9, and a reversing valve 10 is fixedly connected to the front and rear sides of the bottom of the three-way valve 9. The relatively far ends of the two reversing valves 10 are fixedly connected to a material delivery pipe 11, and the other end of the material delivery pipe 11 is connected to the injection cavity 4.

[0044] When injecting, the molten plastic can be injected into the three-way valve 9 through the injection port at the top of the three-way valve 9. At this time, the molten plastic can enter the interior of the two reversing valves 10 and be injected into the injection cavity 4 through the feed pipe 11 until the injection cavity 4 is completely filled, completing the injection process of the molten plastic.

[0045] like Figure 4 and Figure 8 As shown, transverse guide blocks 8 are fixedly installed at both ends of the front and rear ends of the cover plate 2 near the left side, and transverse guide rails 7 are fixedly installed on the left and right sides of the top of the mold 3. The transverse guide blocks 8 and the transverse guide rails 7 are movably connected, and the cover plate 2 is displaced left and right relative to the mold 3.

[0046] Before the plastic is injected, the cover plate 2 and the mold 3 can be kept in the initial state, at which time the transverse guide block 8 is located at the leftmost side of the transverse guide rail 7. At this time, the cover plate 2 and the mold 3 are aligned with each other, and the cover plate 2 can completely block the injection cavity 4 to complete the sealing process.

[0047] like Figure 1 and Figure 2 as well as Figure 6 and Figure 7As shown, the power assembly 15 includes a locking frame 151, the inner side surface of the locking frame 151 is fixedly sleeved with a water storage pipe 154, the top of the water storage pipe 154 away from the cover plate 2 is fixedly connected to a water pump 152, the middle of the water pump 152 is connected to a water pump 153, the end of the water pump 152 away from the water storage pipe 154 is located near the bottom of the cooling pool 1, the bottom end of the water storage pipe 154 away from the cover plate 2 is fixedly connected to a drain pipe 155, the output end of the drain pipe 155 is located between the cover plate 2 and the mold 3, and one-way valves are installed inside the water pump 152 and the drain pipe 155, and the directions of the valves are inward conduction and outward cutoff, respectively. The water storage pipe 154 is movably connected to an internal push plate 156 for outward conduction and inward blockage. The push plate 156 is fixedly connected to a push rod 157 located inside the water storage pipe 154 at one end close to the cover plate 2. The end of the push rod 157 close to the cover plate 2 passes through one side of the water storage pipe 154 and is connected to the mounting frame 6. The outer side surface of the push rod 157 is movably connected to a limit spring 158. The left and right ends of the limit spring 158 are respectively connected to one end of the push plate 156 and one end of the inner cavity of the water storage pipe 154. When the limit spring 158 is in the initial state, the push plate 156 is located at the leftmost position, and the cover plate 2 is located directly above the mold 3 and completely blocks the injection cavity 4.

[0048] Embodiment: After the injection of plastic is completed, the molten plastic in the injection cavity 4 can be rapidly cooled by the coolant in the cooling pool 1, and the plastic sole is formed, and the discharge operation can be carried out;

[0049] At this time, negative pressure can be generated inside the water pump 152 by turning on the water pump 153, and the coolant can be sucked into the inside of the water pump 152 and enter the inside of the water storage pipe 154 at the same time. At this time, keep the drain pipe 155 in a closed state, and the continuously entering coolant will exert pressure on the push plate 156. At this time, the limit spring 158 will be compressed and drive the push rod 157 to move to the right. At this time, the mounting frame 6 can be pushed to move to the right, and the cover plate 2 will move to the right under the guidance of the transverse guide block 8 and the transverse guide rail 7. At this time, the cover plate 2 will move relative to the mold 3 until the transverse guide block 8 moves to the rightmost side of the transverse guide rail 7, and then the top of the mold 3 can be fully opened to wait for the discharge process.

[0050] By utilizing the coolant and cooperating with the power component 15, before discharging, the coolant is extracted as power, and the cover plate 2 is moved relative to the mold 3 by the push of the power component 15, thereby automatically opening the top of the mold 3. The whole process can be completed automatically, avoiding the problem of difficult separation due to adhesion of plastics in traditional devices, quickly achieving separation, and facilitating subsequent discharging, thereby improving injection molding efficiency.

[0051] Before the cover plate 2 is displaced to the right side relative to the mold 3, the longitudinal clamping block 12 can be clamped with the longitudinal clamping groove 5. When the cover plate 2 is displaced to the right side, the longitudinal clamping block 12 can be driven to move to the right side synchronously. At this time, the scraper 13 can be driven to move to the right side synchronously, and the sole surface inside the injection cavity 4 can be scraped to remove surface defects, thereby completing the automatic trimming process.

[0052] By utilizing the displacement process of the cover plate 2 relative to the mold 3 before discharging, that is, realizing the automatic opening of the top of the mold 3, the displacement of the scraper 13 can be realized synchronously, thereby completing the automatic trimming process of the rear surface of the sole after molding. The entire process is completed synchronously with the opening process of the mold 3 before discharging, and there is no need for subsequent trimming process, which simplifies the processing and molding steps, thereby further improving the overall injection molding efficiency.

[0053] like Figure 1 and Figure 2 as well as Figure 5 As shown, the auxiliary discharging assembly 14 includes an extension frame 141, the bottom end of the extension frame 141 is connected to the middle part of the top end of the longitudinal block 12, a mounting seat 142 is fixedly installed on one side of the inner side of the extension frame 141, the interior of the mounting seat 142 is movably connected with a movable frame 143 through a rotating shaft, the movable frame 143 rotates relative to the mounting seat 142, the top of the movable frame 143 is fixedly connected with an electromagnetic block 144, the interior of the mounting seat 142 is made of cast iron, when the movable frame 143 is in an initial state, the movable frame 143 and the mounting seat 142 are perpendicular to each other, the bottom end of the movable frame 143 is fixedly connected to an electric push rod 145, the output end of the electric push rod 145 is fixedly connected to a scraper 146, when the electric push rod 145 is in the initial state, the bottom end of the scraper 146 is higher than the bottom end of the scraper 13.

[0054] Embodiment: When the mold 3 is displaced to the rightmost side, the scraper 13 is also displaced to the rightmost side, and the entire trimming process of the sole surface can be completed. At this time, the auxiliary discharging assembly 14 moves to the rightmost side, and the electric push rod 145 is simultaneously turned on to extend to drive the scraper 146 to move downward, until the scraper 146 moves downward to the inside of the injection cavity 4 and moves to one side of the sole. At this time, the power assembly 15 can be synchronously controlled to reset, that is, the valve of the drain pipe 155 is opened to release the coolant to the position between the cover plate 2 and the mold 3. At this time, the limit spring 158 is automatically reset and drives the cover plate 2 to move to the left side;

[0055] The coolant released at this time cleans the surface of the sole and can pull the auxiliary discharge assembly 14 to move to the left. The power of the electromagnetic block 144 can be turned on synchronously. The electromagnetic block 144 is adsorbed between the extension frame 141 and the electromagnetic block 144 rotates to the right. The scraper 146 at the bottom is tilted to the upper left corner and cooperates with the displacement of the auxiliary discharge assembly 14. The molded sole can be tilted out of the injection cavity 4 and taken out from the top of the mold 3 to complete the auxiliary discharge process. After the tilting is completed, the auxiliary discharge assembly 14 automatically resets.

[0056] By utilizing the resetting process of the device, that is, the resetting return process, the trimmed sole surface is automatically cleaned by releasing the coolant that provides power, and at the same time, the sole can be lifted from the injection cavity 4 in cooperation with the auxiliary discharge component 14 to complete the auxiliary discharge. The whole process is still completed automatically, and there is no need for the traditional device to invert and knock the mold 3, which will not cause a decrease in mold accuracy. At the same time, the discharge efficiency is improved and the overall molding efficiency is improved.

[0057] Working principle and usage process:

[0058] When injecting, the molten plastic can be injected into the three-way valve 9 through the injection port at the top of the three-way valve 9. At this time, the molten plastic can enter the two reversing valves 10 and be injected into the injection cavity 4 through the feeding pipe 11 until the injection cavity 4 is completely filled, completing the injection process of the molten plastic.

[0059] Before the plastic is injected, the cover plate 2 and the mold 3 can be kept in the initial state, at which time the transverse guide block 8 is located at the leftmost side of the transverse guide rail 7, the cover plate 2 and the mold 3 are aligned with each other, and the cover plate 2 can completely block the injection cavity 4, completing the sealing process;

[0060] After the injection of plastic is completed, the molten plastic in the injection cavity 4 can be rapidly cooled by the coolant in the cooling pool 1, and the plastic sole is formed and the discharging operation can be carried out;

[0061] At this time, negative pressure can be generated inside the water pump 152 by turning on the water pump 153, so that the coolant is sucked into the water pump 152 and enters the water storage pipe 154 at the same time. At this time, the drain pipe 155 is kept in a closed state, and the continuously entering coolant exerts pressure on the push plate 156. At this time, the limit spring 158 is compressed and drives the push rod 157 to move to the right. At this time, the mounting frame 6 can be pushed to move to the right, and the cover plate 2 is then displaced to the right under the guidance of the transverse guide block 8 and the transverse guide rail 7. At this time, the cover plate 2 is displaced relative to the mold 3 until the transverse guide block 8 moves to the rightmost side of the transverse guide rail 7, and the top of the mold 3 can be fully opened to wait for the discharge process;

[0062] Before the cover plate 2 is displaced to the right relative to the mold 3, the longitudinal clamping block 12 can be clamped with the longitudinal clamping groove 5, and when the cover plate 2 is displaced to the right, the longitudinal clamping block 12 can be synchronously driven to move to the right, and at this time, the scraper 13 can be synchronously driven to move to the right, and the sole surface inside the injection cavity 4 can be scraped to remove surface defects, thereby completing the automatic trimming process;

[0063] When the mold 3 is displaced to the rightmost side, the scraper 13 is also displaced to the rightmost side, and the entire trimming process of the sole surface is completed. At this time, the auxiliary discharging assembly 14 moves to the rightmost side, and the electric push rod 145 is simultaneously turned on to extend to drive the scraper 146 to move downward, until the scraper 146 moves down to the inside of the injection cavity 4 and moves to one side of the sole. At this time, the power assembly 15 can be synchronously controlled to reset, that is, the valve of the drain pipe 155 is opened to release the coolant to the position between the cover plate 2 and the mold 3. At this time, the limit spring 158 is automatically reset and drives the cover plate 2 to move to the left side.

[0064] The coolant released at this time cleans the surface of the sole and can pull the auxiliary discharge assembly 14 to move to the left. The power of the electromagnetic block 144 can be turned on synchronously. The electromagnetic block 144 is adsorbed between the extension frame 141 and the electromagnetic block 144 rotates to the right. The scraper 146 at the bottom is tilted to the upper left corner and cooperates with the displacement of the auxiliary discharge assembly 14. The molded sole can be tilted out of the injection cavity 4 and taken out from the top of the mold 3 to complete the auxiliary discharge process. After the tilting is completed, the auxiliary discharge assembly 14 automatically resets.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sole injection molding device for safety shoes, comprising a cooling pool (1), characterized in that: The interior of the cooling pool (1) is filled with a coolant, a mold (3) is fixedly installed on the right side of the interior of the cooling pool (1), a cover plate (2) is provided at the top end of the mold (3), the bottom end of the cover plate (2) is in contact with the top end of the mold (3), an injection cavity (4) is provided inside the mold (3), a longitudinal slot (5) is provided on the left side near the top end of the cover plate (2), a longitudinal block (12) is movably connected inside the longitudinal slot (5), and the bottom end of the longitudinal block (12) is fixedly installed A scraper (13) is provided, a mounting frame (6) is fixedly installed on the left side of the cover plate (2), an auxiliary discharge assembly (14) located between the mounting frame (6) and the cover plate (2) is fixedly installed on the top end of the longitudinal clamping block (12), the left end of the mounting frame (6) is connected to a power assembly (15) located inside the cooling pool (1), the bottom end of the scraper (13) and the bottom end of the cover plate (2) are on the same horizontal plane, and a three-way valve (9) is provided above the cover plate (2) on the side close to the power assembly (15).

2. The sole injection molding equipment for safety shoes according to claim 1 is characterized in that: The top of the three-way valve (9) is provided with a material injection port, and the front and rear sides of the bottom of the three-way valve (9) are fixedly connected to a reversing valve (10), and the relatively far ends of the two reversing valves (10) are fixedly connected to a material delivery pipe (11), and the other end of the material delivery pipe (11) is connected to the injection cavity (4).

3. The sole injection molding equipment for safety shoes according to claim 1 is characterized in that: The cover plate (2) is fixedly mounted with transverse guide blocks (8) at both front and rear ends close to the left side, and transverse guide rails (7) are fixedly mounted on both left and right sides of the top of the mold (3). The transverse guide blocks (8) are movably connected to the transverse guide rails (7), and the cover plate (2) is displaced left and right relative to the mold (3).

4. The sole injection molding equipment for safety shoes according to claim 1 is characterized in that: The power assembly (15) comprises a locking frame (151), the inner side surface of the locking frame (151) is fixedly sleeved with a water storage pipe (154), the top end of the water storage pipe (154) away from the cover plate (2) is fixedly connected to a water pump (152), the middle part of the water pump (152) is connected to a water pump (153), and the end of the water pump (152) away from the water storage pipe (154) is located at a position close to the bottom end of the cooling pool (1).

5. The sole injection molding device for safety shoes according to claim 4, characterized in that: The bottom end of the water storage pipe (154) on the side away from the cover plate (2) is fixedly connected to a drainage pipe (155), and the output end of the drainage pipe (155) is located between the cover plate (2) and the mold (3). Both the water pumping pipe (152) and the drainage pipe (155) are internally installed with a one-way valve, and the directions of the valve are respectively inwardly conducting and outwardly blocking, and outwardly conducting and inwardly blocking.

6. The sole injection molding device for safety shoes according to claim 5, characterized in that: The water storage pipe (154) is movably sleeved with a push plate (156), and one end of the push plate (156) close to the cover plate (2) is fixedly connected to a push rod (157) located inside the water storage pipe (154). The end of the push rod (157) close to the cover plate (2) passes through one side of the water storage pipe (154) and is connected to the mounting frame (6). The outer side surface of the push rod (157) is movably sleeved with a limit spring (158), and the left and right ends of the limit spring (158) are respectively connected to one end of the push plate (156) and one end of the inner cavity of the water storage pipe (154).

7. The sole injection molding device for safety shoes according to claim 6, characterized in that: When the limit spring (158) is in the initial state, the push plate (156) is located at the leftmost position, and the cover plate (2) is located directly above the mold (3) and completely blocks the injection cavity (4).

8. The sole injection molding equipment for safety shoes according to claim 1, characterized in that: The auxiliary discharging assembly (14) comprises an extension frame (141), the bottom end of the extension frame (141) is connected to the middle part of the top end of the longitudinal clamping block (12), a mounting seat (142) is fixedly installed on one side of the inner side of the extension frame (141), the interior of the mounting seat (142) is movably connected to a movable frame (143) via a rotating shaft, the movable frame (143) rotates relative to the mounting seat (142), and the top end of the movable frame (143) is fixedly connected to an electromagnetic block (144).

9. The sole injection molding device for safety shoes according to claim 8, characterized in that: The interior of the mounting seat (142) is made of cast iron. When the movable frame (143) is in an initial state, the movable frame (143) and the mounting seat (142) are perpendicular to each other.

10. The sole injection molding device for safety shoes according to claim 9, characterized in that: The bottom end of the movable frame (143) is fixedly connected to an electric push rod (145), and the output end of the electric push rod (145) is fixedly connected to a scraper (146). When the electric push rod (145) is in an initial state, the bottom end of the scraper (146) is higher than the bottom end of the scraper (13).

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