A rubber injection molding device and process for a laryngoscope

Abstract

The present invention discloses a glue injection molding device and process for a laryngoscope, which relates to the field of secondary injection molding of laryngoscopes. The glue injection molding device and process for the laryngoscope include a continuous feeding unit and a batch injection molding unit arranged on a processing table. The batch injection molding unit includes an injection molding machine group, two sets of circulating feeding conveyors, a cooling member, an injection molding die member, and a driving member. For the glue injection molding device and process for the laryngoscope, the laryngoscope will automatically slide down to the position of the turning stop bar under the action of gravity and wait for feeding. The circulating feeding conveyor will automatically clamp and feed the laryngoscope during the movement of the steel mold, and the circulating chain will automatically discharge the material during the secondary movement of the steel mold, so as to achieve a high degree of automation in the whole processing process, continuous operation, high efficiency, and no need for complex driving components to cooperate with each other, and the equipment cost and control cost are lower.

Description

Technical Field

[0001] The present invention relates to the technical field of secondary injection molding of laryngoscopes, and specifically to a glue injection molding device and process for laryngoscopes. Background Art

[0002] When a laryngoscope is produced and processed, it is usually made of plastic and integrally formed by an injection molding process, with a lens module embedded inside. However, when in use, its shell is relatively hard, and it is easy to cause scratches when inserted into the patient's throat. Therefore, secondary injection molding is usually carried out at its end to form a soft glue outer layer at the end, reducing the harm to the patient.

[0003] In the existing secondary injection molding process, a split injection mold is usually used to clamp the already formed laryngoscope handle, and then soft glue is injected into the mold. After the soft glue is formed, the mold is opened so that the soft glue adheres to the end of the laryngoscope. However, in actual production and processing, it is necessary to place the laryngoscope in the mold manually or by a robotic arm during the processing, and then take it out after the processing is completed. The whole process requires multiple steps to achieve, and the processing process is not continuous, resulting in low overall efficiency, and high equipment cost and control cost. Therefore, a glue injection molding device and process for laryngoscopes are provided specifically. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a glue injection molding device and process for laryngoscopes, which solves the problems of discontinuous processing, low efficiency, and high equipment cost and control cost in the existing secondary soft glue injection molding process of laryngoscopes.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A glue injection molding device for laryngoscopes, including;

[0006] A processing table;

[0007] A continuous feeding unit, which is installed on one side of the top of the processing table. In the continuous feeding unit, a feeding chute is provided for continuous feeding of the plastic handle of the laryngoscope, and a flipping stop bar is provided at the end of the feeding chute for positioning the plastic handle of the laryngoscope;

[0008] A batch injection unit, which is installed on the other side of the top of the processing table. The batch injection unit includes;

[0009] Two groups of circulating feeding conveyors, which are located on both sides of the front end of the feeding chute and are used to clamp the plastic handle of the laryngoscope;

[0010] An injection mold part, which is slidably arranged in the middle of the two groups of circulating feeding conveyors and is used to synchronously clamp the injection parts of multiple plastic handles of the laryngoscope;

[0011] An injection molding unit, which is fixedly arranged under the processing table and is used to inject into the injection mold part;

[0012] A driving member, which is fixedly arranged on the top of the processing table and is used to drive the injection mold member to move.

[0013] Preferably, the continuous feeding unit includes;

[0014] A fixing frame, which is fixedly installed on the top of the processing table;

[0015] A positioning clamping plate, which is arranged below the fixing frame, and a feeding slideway is fixedly installed on the top of the positioning clamping plate;

[0016] A support shaft, which is fixedly arranged on the top of the fixing frame;

[0017] A suspension connecting frame, which is fixedly arranged on the support shaft;

[0018] One end of the positioning clamping plate is fixed to the top of the processing table, and the other end of the positioning clamping plate is fixedly connected to the suspension connecting frame.

[0019] Preferably, there are two groups of the flipping stop rods, which are respectively rotatably connected to both sides of the bottom end of the feeding slideway. Fixed parts are fixedly arranged on both sides of the feeding slideway. A traction spring is fixedly installed between the end of the flipping stop rod and the fixed part. One end of the two groups of circulating feeding conveying parts is located above the flipping stop rod.

[0020] Preferably, the circulating feeding conveying part includes;

[0021] A circulating support, which is fixedly arranged on the top of the processing table, and the driving member is arranged above the circulating support;

[0022] A circulating chain, which is installed inside the circulating support;

[0023] Clamping blocks, which are equidistantly and fixedly installed on the outer side wall of the circulating chain, and a loop-shaped opening is formed on the outer side of the circulating support. The clamping blocks slide along the loop-shaped opening;

[0024] Sprocket supports, which are fixedly arranged at the four corners of the top of the circulating support;

[0025] A driving sprocket, which is connected to the bottom of the sprocket support by bearings, and one side of the driving sprocket penetrates through the circulating support and meshes with the circulating chain.

[0026] Preferably, the two groups of circulating supports are arranged side by side, and the plastic handle of the laryngoscope is clamped by two groups of clamping blocks on the opposite side. An arc groove adapted to the plastic handle of the laryngoscope is formed on the outer side of the clamping block. One end of the arc groove extends outward along the arc groove to form a sharp protrusion, and the other end of the arc groove is chamfered to form a smooth surface.

[0027] Preferably, the driving member includes;

[0028] A support frame, which is fixedly arranged on the processing table;

[0029] An L-shaped side link, which is fixedly arranged inside the support frame, and the bottom end of the L-shaped side link is fixedly connected to the circulating bracket;

[0030] A guide rail, which is fixedly arranged in the middle of the support frame;

[0031] A driving traction member, which is slidably arranged on the outer surface of the guide rail, and its bottom end is fixedly connected to the injection mold part;

[0032] A driving lead screw, which is rotatably arranged in the support frame and is threadedly connected to the driving traction member;

[0033] A servo motor, which is fixedly installed on the support frame, and its output end is drivingly connected to the driving lead screw.

[0034] Preferably, the injection mold part includes;

[0035] Two groups of mold supports, which are fixedly connected to the bottom of the driving traction member;

[0036] A steel mold, which is movably arranged inside the mold support, and a cooling member is connected to the steel mold;

[0037] A plurality of mold grooves, which are equidistantly arranged inside the steel mold;

[0038] An injection hole, which is opened at the bottom end of the mold groove, and the output end of the injection unit is adapted to the injection hole;

[0039] An opening and closing air cylinder, which is fixedly installed outside the mold support, and its output end is fixedly connected to the steel mold.

[0040] Preferably, a positioning top shaft movably penetrates through the mold support, the end of the positioning top shaft movably penetrates into the mold groove, a retaining ring is fixedly sleeved on the outer surface of the positioning top shaft, a memory spring is arranged between the retaining ring and the mold support, a positioning seat is fixedly arranged at the bottom of the mold support, a positioning groove is opened on the processing table, and the positioning seat is slidably connected in the positioning groove.

[0041] Preferably, the cooling member includes;

[0042] A circulating cooler, which is fixedly arranged under the processing table;

[0043] A circulating pipe, one end of which is fixedly installed on the circulating cooler and the other end of which penetrates through the positioning seat;

[0044] A coolant conduction pipe, which is fixedly arranged on the back of the steel mold;

[0045] A cooling channel is arranged in the inner wall of the steel mold, and the cooling channel is connected to the circulating pipe through a plurality of coolant conduction pipes.

[0046] Preferably, the injection molding unit includes;

[0047] A screw extruder fixedly installed at the bottom of the processing table;

[0048] An electric heating bin movably arranged at the bottom of the processing table and connected to the output end of the screw extruder. A plurality of injection needles adapted to the injection holes are fixedly arranged on the top surface of the electric heating bin;

[0049] A support bracket fixedly arranged at the bottom of the processing table;

[0050] A lifting cylinder fixedly arranged on the support bracket and having its output end fixedly connected to the bottom of the electric heating bin;

[0051] A feed hopper fixedly arranged at the top of the processing table and having its bottom end connected to the feed inlet of the screw extruder.

[0052] A rubber injection molding process for a laryngoscope includes the following steps;

[0053] Step 1: Use the plastic handle of the laryngoscope as a process handle for positioning and feeding;

[0054] Step 2: Synchronously inject multiple groups of laryngoscope ends to form a soft rubber outer layer;

[0055] Step 3: After the soft rubber layer is cooled, automatically complete batch discharging.

[0056] The present invention discloses a rubber injection molding device and process for a laryngoscope, and the beneficial effects thereof are as follows:

[0057] 1. For the rubber injection molding device and process of the laryngoscope, the laryngoscope will automatically slide to the position of the flipping stop rod under the action of gravity to wait for feeding, and the circulating feeding conveyor will automatically clamp and feed the laryngoscope during the movement of the steel mold, and the circulating chain will automatically discharge the laryngoscope during the second movement of the steel mold, so as to achieve a high degree of automation in the whole processing process, continuous operation, and no need for complex driving components to cooperate with each other, and the equipment cost and control cost are lower.

[0058] 2. For the rubber injection molding device and process of the laryngoscope, by setting a continuous feeding unit, a feeding chute adapted to the annular protrusions on the surface of the handle part of the laryngoscope is designed. Through the feeding chute, the laryngoscope can be stuck on the feeding chute and slide down, and the functional part of the laryngoscope can be made horizontal and backward by using the positioning clamping plate, so as to ensure the position state of the laryngoscope during feeding, and the laryngoscope is blocked and positioned by the flipping stop rod at the end of the feeding chute, so that the laryngoscope can be automatically fed and positioned at the end position of the feeding chute during the processing process.

[0059] 3. The rubber injection molding equipment and process of this laryngoscope. The opening and closing cylinder drives two groups of steel molds to move to both sides. At this time, under the action of the memory spring, the steel mold first slides a short distance outward along the top shaft and contacts the retaining ring. At this time, the top shaft does not move and keeps contacting the injection molded part. Then the opening and closing cylinder continues to move. At this time, under the action of the retaining ring, the steel mold drives the top shaft to move outward synchronously, so that the memory spring is compressed. Thus, using the top shaft as a stripping ejector pin, the steel mold and the injection molded part can be automatically separated to avoid sticking of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0061] Figure 1 Structural schematic diagram of the outer surface of the integrated injection molding equipment of the present invention;

[0062] Figure 2 Structural schematic diagram of the bottom of the integrated injection molding equipment of the present invention;

[0063] Figure 3 Structural schematic diagram of the outer surface of the screw extruder of the present invention;

[0064] Figure 4 Structural schematic diagram of the circulating feeding conveyor and the injection molding die of the present invention;

[0065] Figure 5 Structural schematic diagram of the driving part of the present invention;

[0066] Figure 6 Structural schematic diagram of the circulating feeding conveyor of the present invention;

[0067] Figure 7 Structural schematic diagram of the inner side of the injection molding die of the present invention;

[0068] Figure 8 Structural schematic diagram of the back of the injection molding die of the present invention;

[0069] Figure 9 Structural schematic diagram of the continuous feeding unit of the present invention;

[0070] Figure 10 Structural schematic diagram of the end of the feeding chute of the present invention;

[0071] Figure 11 Structural schematic diagram of the flipping stop bar and the clamping block of the present invention;

[0072] Figure 12This is the process flow chart of the glue injection molding process of the present invention.

[0073] In the figure: 1. Processing table; 12. Positioning groove;

[0074] 2. Continuous feeding unit; 21. Fixed frame; 22. Feeding chute; 23. Positioning clamping plate; 24. Support shaft; 25. Suspension connecting frame; 26. Flipping stop bar; 27. Fixed part; 28. Traction spring;

[0075] 3. Batch injection molding unit; 31. Injection molding machine set; 32. Circulating feeding conveyor; 33. Cooling part; 34. Injection molding die part; 35. Driving part;

[0076] 311. Screw extruder; 312. Electric heating bin; 313. Support bracket; 314. Lifting cylinder; 315. Feed hopper;

[0077] 321. Circulating bracket; 322. Circulating chain; 323. Clamping block; 324. Sprocket support; 325. Driving sprocket;

[0078] 331. Circulating cooler; 332. Circulating pipe; 333. Coolant conduction pipe;

[0079] 341. Die support; 342. Steel die; 343. Die groove; 344. Injection hole; 345. Opening and closing cylinder; 346. Top shaft; 347. Retaining ring; 348. Memory spring; 349. Positioning seat;

[0080] 351. Support frame; 352. L-shaped side connecting rod; 353. Guide rail; 354. Driving lead screw; 355. Servo motor; 356. Driving traction part. Detailed implementation manners

[0081] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. 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.

[0082] By providing a glue injection molding device and process for a laryngoscope in the embodiments of the present application, the problems in the existing secondary soft glue injection molding process of the laryngoscope, such as discontinuous processing, low efficiency, and high equipment cost and control cost, are solved.

[0083] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0084] An embodiment of the present invention discloses a rubber injection molding device for a laryngoscope. According to the attached Figure 1 - attached Figure 12 shown, it includes;

[0085] Processing table 1;

[0086] A continuous feeding unit 2, which is installed on one side of the top of the processing table 1. In the continuous feeding unit 2, a feeding chute 22 is provided for continuous feeding of the plastic handle of the laryngoscope, and a flipping stop bar 26 is provided at the end of the feeding chute 22 for positioning the plastic handle of the laryngoscope.

[0087] The continuous feeding unit 2 includes a fixing frame 21, a feeding chute 22, a positioning clamping plate 23, a support shaft 24, a suspension connecting frame 25, a flipping stop bar 26, a fixing part 27 and a traction spring 28. The fixing frame 21 is fixedly installed on the top of the processing table 1; the positioning clamping plate 23 is arranged below the fixing frame 21, and the feeding chute 22 is fixedly installed on the top of the positioning clamping plate 23; the support shaft 24 is fixedly arranged on the top of the fixing frame 21; the suspension connecting frame 25 is fixedly arranged on the support shaft 24; one end of the positioning clamping plate 23 is fixed to the top of the processing table 1, and the other end of the positioning clamping plate 23 is fixedly connected to the suspension connecting frame 25. The feeding chute 22 is "S"-shaped, and its bottom end is horizontal.

[0088] There are two groups of flipping stop bars 26, which are respectively rotatably connected to both sides of the bottom end of the feeding chute 22. Fixing parts 27 are fixedly arranged on both sides of the feeding chute 22, and a traction spring 28 is fixedly installed between the end of the flipping stop bar 26 and the fixing part 27. One end of the two groups of circulating feeding conveyors 32 is located above the flipping stop bar 26.

[0089] A batch injection molding unit 3, which is installed on the other side of the top of the processing table 1. The batch injection molding unit 3 includes an injection molding machine group 31, two groups of circulating feeding conveyors 32, a cooling part 33, an injection molding die part 34 and a driving part 35.

[0090] The two groups of circulating feeding conveyors 32 are located on both sides of the front end of the feeding chute 22 for clamping the plastic handle of the laryngoscope; the injection molding die part 34 is slidably arranged in the middle of the two groups of circulating feeding conveyors 32 for synchronously clamping the injection parts of multiple plastic handles of the laryngoscope; the injection molding machine group 31 is fixedly arranged below the processing table 1 for injecting into the injection molding die part 34; the driving part 35 is fixedly arranged on the top of the processing table 1 for driving the injection molding die part 34 to move, and the cooling part 33 is used for quickly cooling the injection molding die part 34.

[0091] The circulating feed conveyor 32 includes a circulating bracket 321, a circulating chain 322, a clamping block 323, a sprocket bracket 324 and a driving sprocket 325. The circulating bracket 321 is fixedly arranged on the top of the processing table 1, and the driving member 35 is arranged above the circulating bracket 321; the circulating chain 322 is installed inside the circulating bracket 321; the clamping blocks 323 are fixedly installed equidistantly on the outer side wall of the circulating chain 322, and a loop-shaped opening is formed on the outer side of the circulating bracket 321, and the clamping blocks 323 slide along the loop-shaped opening; the sprocket brackets 324 are fixedly arranged on the tops of the four corners of the circulating bracket 321; the driving sprocket 325 is connected to the bottom of the sprocket bracket 324 by bearings, and one side of the driving sprocket 325 penetrates through the circulating bracket 321 and meshes with the circulating chain 322.

[0092] Two groups of circulating brackets 321 are arranged side by side, and the plastic handle of the laryngoscope is clamped by two groups of clamping blocks 323 on the opposite side. An arc groove adapted to the plastic handle of the laryngoscope is formed on the outer side of the clamping block 323, and a sharp protrusion extends outward along the arc groove at one end of the arc groove, and the other end of the arc groove is chamfered to form a smooth surface.

[0093] The driving member 35 includes a support frame 351, an L-shaped side connecting rod 352, a guide rail 353, a driving lead screw 354, a servo motor 355 and a driving traction member 356. The support frame 351 is fixedly arranged on the processing table 1; the L-shaped side connecting rod 352 is fixedly arranged inside the support frame 351, and the bottom end of the L-shaped side connecting rod 352 is fixedly connected to the circulating bracket 321; the guide rail 353 is fixedly arranged in the middle of the support frame 351; the driving traction member 356 is slidably arranged on the outer surface of the guide rail 353, and its bottom end is fixedly connected to the injection mold member 34; the driving lead screw 354 is rotatably arranged in the support frame 351, and it is threadedly connected to the driving traction member 356; the servo motor 355 is fixedly installed on the support frame 351, and its output end is drivingly connected to the driving lead screw 354.

[0094] The injection mold part 34 includes two sets of mold supports 341, a steel mold 342, a plurality of mold grooves 343, an injection hole 344, an opening and closing cylinder 345, a positioning top shaft 346, a retaining ring 347, a memory spring 348 and a positioning seat 349. The two sets of mold supports 341 are fixedly connected to the bottom of the driving traction part 356. The steel mold 342 is movably arranged inside the mold support 341, and a cooling part 33 is connected to the steel mold 342. A plurality of mold grooves 343 are equidistantly opened inside the steel mold 342. The injection hole 344 is opened at the bottom end of the mold groove 343, and the output end of the injection molding unit 31 is adapted to the injection hole 344. The opening and closing cylinder 345 is fixedly installed outside the mold support 341, and its output end is fixedly connected to the steel mold 342. A positioning top shaft 346 movably penetrates through the mold support 341, and the end of the positioning top shaft 346 movably penetrates into the mold groove 343. A retaining ring 347 is fixedly sleeved on the outer surface of the positioning top shaft 346, and a memory spring 348 is arranged between the retaining ring 347 and the mold support 341. A positioning seat 349 is fixedly arranged at the bottom of the mold support 341, and a positioning groove 12 is opened on the processing table 1. The positioning seat 349 is slidably connected in the positioning groove 12.

[0095] The cooling part 33 includes a circulating cooler 331, a circulating pipe 332 and a coolant conduction pipe 333. The circulating cooler 331 is fixedly arranged below the processing table 1. One end of the circulating pipe 332 is fixedly installed on the circulating cooler 331, and the other end thereof penetrates through the positioning seat 349. The coolant conduction pipe 333 is fixedly arranged on the back of the steel mold 342. A cooling channel is arranged in the inner wall of the steel mold 342, and the cooling channel is connected to the circulating pipe 332 through a plurality of coolant conduction pipes 333.

[0096] The injection molding unit 31 includes a screw extruder 311, an electric heating bin 312, a support bracket 313, a lifting cylinder 314 and a feed hopper 315. The screw extruder 311 is fixedly installed at the bottom of the processing table 1. The electric heating bin 312 is movably arranged at the bottom of the processing table 1 and is connected to the output end of the screw extruder 311. A plurality of injection needles adapted to the injection holes 344 are fixedly arranged on the top surface of the electric heating bin 312. The support bracket 313 is fixedly arranged at the bottom of the processing table 1. The lifting cylinder 314 is fixedly arranged on the support bracket 313, and its output end is fixedly connected to the bottom of the electric heating bin 312. The feed hopper 315 is fixedly arranged on the top of the processing table 1, and its bottom end is connected to the feed inlet of the screw extruder 311.

[0097] Refer to the attached Figure 1 - attached Figure 12 As shown, a rubber injection molding process for a laryngoscope includes the following steps;

[0098] Step 1: Use the plastic handle of the laryngoscope as a process handle for positioning and feeding;

[0099] Step 2: Synchronously inject mold the ends of multiple laryngoscopes to form a soft rubber outer layer;

[0100] Step 3: After the soft rubber layer is cooled, automatically complete batch blanking.

[0101] Working principle: When in use, place multiple laryngoscopes on the feeding chute 22, with the laryngoscope handle facing upwards and the functional end facing downwards. The functional end is positioned using the positioning clamping plate 23 so that its end is horizontally towards the rear. At this time, it slides down along the "s"-shaped feeding chute 22, causing the laryngoscope handle to move to the bottom of the feeding chute 22 and be blocked by two sets of flipping stop rods 26;

[0102] When starting for the first time, manually push the handles of multiple laryngoscopes forward so that the laryngoscope handles enter the circulating feeding conveyor 32, and clamp the laryngoscope handles with two sets of opposing clamping blocks 323. The number of laryngoscope handles pushed in is the same as the number of mold slots inside the steel mold 342;

[0103] Then start the opening and closing air cylinder 345, causing the opening and closing air cylinder 345 to push the steel molds 342 on both sides towards the middle. At this time, multiple laryngoscope handles enter the mold slots 343. Then start the lifting air cylinder 314, causing it to drive the electric heating chamber 312 upwards, so that the injection needle at the top of the electric heating chamber 312 is inserted into the injection hole 344. Then start the screw extruder 311 to squeeze the soft rubber material into the electric heating chamber 312, and at the same time enter the mold slots 343 through the injection needle. Then the lifting air cylinder 314 drives the electric heating chamber 312 downwards;

[0104] And during this process, inject the coolant into the sandwich layer of the steel mold 342 through the circulating cooler 331 to quickly cool the soft rubber inside the mold slots 343, so that the soft rubber adheres to the outer surface of the functional end of the laryngoscope to form a soft rubber outer layer;

[0105] Then start the servo motor 355 to drive the driving lead screw 354 to rotate, so that the driving traction part 356 moves along the guide rail 353 towards the end away from the feeding chute 22. At this time, the driving traction part 356 drives the steel mold 342 to move along the positioning groove 12, causing the laryngoscope handle to move to the end of the circulating feeding conveyor 32;

[0106] Then, the two sets of opening and closing cylinders 345 drive the two sets of steel molds 342 to move to both sides. At this time, under the action of the memory spring 348, the steel mold 342 first slides a short distance outward along the top shaft 346 and contacts the retaining ring 347. At this time, the top shaft 346 remains stationary, maintaining contact with the injection molded part, so that the steel mold 342 is separated from the injection molded part. Then, the opening and closing cylinder 345 continues to move. At this time, under the action of the retaining ring 347, the steel mold 342 drives the top shaft 346 to move outward synchronously, so that the memory spring 348 is compressed. Thus, using the top shaft 346 as a demolding ejector pin, the steel mold 342 is separated from the injection molded part. At this time, the laryngoscope completed with injection molding is suspended at the end of the circulating chain 322;

[0107] Meanwhile, during the above process, as the steel mold 342 clamps the laryngoscope and moves backward, the clamping block 323 is driven to move by the laryngoscope handle. At this time, the entire circulating chain 322 moves. At this time, the clamping blocks 323 at the front end of the circulating chain 322 continuously move from both sides to the middle. The clamping block 323 smoothly moves to the outer surface of the laryngoscope at the end of the feeding chute 22 through the smooth surface. Then, the circulating chain 322 continues to move. The clamping block 323 clamps and removes the laryngoscope between the two sets of flipping stop rods 26 through the sharp protrusions, so that the position of the laryngoscope handle is stuck inside the arc groove and moves forward along with the circulating chain 322. At the same time, the laryngoscope on the feeding chute 22 slides forward under the action of gravity, so that the frontmost laryngoscope makes up the position and enters between the two sets of flipping stop rods 26. It should be noted that the forward movement distance of the steel mold 342 is the same as the length of the steel mold 342. Thus, during the process of the circulating chain 322 following the steel mold 342 to move, the same number of laryngoscopes are taken off from between the two sets of flipping stop rods 26;

[0108] Then, control the servo motor 355 to reverse, driving the opened steel mold 342 to move backward to the initial point. At this time, the opening and closing cylinder 345 drives the two sets of steel molds 342 to clamp on the surfaces of multiple newly supplemented laryngoscopes again. Then, the injection molding unit 31 is started again for injection molding. Then, the steel mold 342 moves forward again. At this time, through the movement of the circulating chain 322, the first group of laryngoscopes completed with injection molding are separated from the circulating chain 322 and fall downward from its end for discharging, while the second group of laryngoscopes completed with injection molding move to the discharging area to wait for discharging;

[0109] In this way, during the subsequent processing process, there is no need to use other feeding mechanisms. The laryngoscope will automatically slide down to the position of the flipping stop rod 26 under the action of gravity to wait for feeding. The circulating feeding conveyor 32 will automatically clamp the laryngoscope for feeding during the movement of the steel mold 342, and the circulating chain 322 will automatically discharge the material when the steel mold 342 moves for the second time. Thus, the automation degree of the entire processing process is high, continuous operation is achieved, and there is no need for complex drive components to cooperate with each other, and the equipment cost and control cost are lower.

[0110] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A laryngoscope plastic injection molding device, characterized in that: include Processing table (1); A continuous feeding unit (2) is installed on one side of the top of the processing table (1); a feeding slide (22) is provided in the continuous feeding unit (2) for continuous feeding of the laryngoscope plastic handle; a flip stop rod (26) is provided at the end of the feeding slide (22) for positioning the laryngoscope plastic handle; A batch injection molding unit (3) is installed on the other side of the top of the processing table (1), and the batch injection molding unit (3) comprises: Two sets of circulating feeding conveying members (32), which are located on both sides of the front end of the feeding slideway (22) and are used to clamp the plastic handle of the laryngoscope; An injection mold member (34) is slidably disposed in the middle of the two sets of circulating feed conveying members (32) and is used to synchronously clamp the injection molding parts of a plurality of laryngoscope plastic handles; An injection molding unit (31) is fixedly arranged below the processing table (1) and is used for injecting molding into the injection mold part (34); A driving member (35) fixedly disposed on the top of the processing table (1) and used for driving the injection mold member (34) to move; The continuous feeding unit (2) comprises: A fixed frame (21) fixedly mounted on the top of the processing table (1); A positioning clamping plate (23) is arranged below the fixing frame (21), and a feeding slideway (22) is fixedly mounted on the top of the positioning clamping plate (23); A support shaft (24) fixedly disposed on the top of the fixing frame (21); A suspension connecting frame (25) fixedly disposed on the supporting shaft (24); One end of the positioning clamping plate (23) is fixed to the top of the processing table (1), and the other end of the positioning clamping plate (23) is fixedly connected to the suspension connecting frame (25); The flip baffle rods (26) are divided into two groups, which are rotatably connected to the two sides of the bottom end of the loading slide (22), and the two sides of the loading slide (22) are fixedly provided with fixed parts (27). A traction spring (28) is fixedly installed between the end of the flip baffle rod (26) and the fixed part (27), and one end of the two groups of circulating feeding conveying parts (32) is located above the flip baffle rod (26).

2. The laryngoscope plastic injection molding device according to claim 1, characterized in that: The circulating feed conveying member (32) comprises: A circulation support (321) is fixedly arranged on the top of the processing table (1), and a driving member (35) is mounted above the circulation support (321); A circulating chain (322) installed inside the circulating support (321); A clamping block (323) is fixedly installed at equal distances on the outer wall of the circulating chain (322), and a circular opening is provided on the outer side of the circulating bracket (321), and the clamping block (323) slides along the circular opening; Sprocket brackets (324) are fixedly arranged on the top of the four corners of the circulation bracket (321); A transmission sprocket (325) has a bearing connected to the bottom of the sprocket bracket (324), and one side of the transmission sprocket (325) penetrates the circulation bracket (321) and meshes with the circulation chain (322).

3. The laryngoscope plastic injection molding device according to claim 2, characterized in that: Two groups of the circulation brackets (321) are arranged side by side, and the plastic handle of the laryngoscope is clamped by two groups of clamping blocks (323) on opposite sides. The outer side of the clamping block (323) is provided with an arc groove adapted to the plastic handle of the laryngoscope, and one end of the arc groove extends outward along the arc groove to form a sharp protrusion, and the other end of the arc groove is chamfered to form a smooth surface.

4. The laryngoscope plastic injection molding device according to claim 2, characterized in that: The driving member (35) comprises: A support frame (351) fixedly disposed on the processing table (1); An L-shaped side connecting rod (352) is fixedly arranged on the inner side of the supporting frame (351), and the bottom end of the L-shaped side connecting rod (352) is fixedly connected to the circulation support (321); A guide rail (353) fixedly disposed in the middle of the support frame (351); A driving traction member (356) which is slidably disposed on the outer surface of the guide rail (353) and has a bottom end fixedly connected to the injection mold member (34); A driving screw rod (354) is rotatably disposed in the support frame (351) and is threadably connected to the driving traction member (356); The servo motor (355) is fixedly mounted on the support frame (351), and its output end is drivingly connected to the driving screw rod (354).

5. The laryngoscope plastic injection molding device according to claim 1, characterized in that: The injection mold part (34) comprises: Two sets of mold supports (341) fixedly connected to the bottom of the driving traction member (356); A steel mold (342) is movably disposed on the inner side of the mold support (341), and a cooling element (33) is connected to the steel mold (342); A plurality of mold grooves (343) are equidistantly disposed inside the steel mold (342); An injection hole (344) is provided at the bottom end of the mold groove (343), and the output end of the injection molding unit (31) is adapted to the injection hole (344); The opening and closing cylinder (345) is fixedly mounted on the outside of the mold support (341), and its output end is fixedly connected to the steel mold (342).

6. The laryngoscope plastic injection molding device according to claim 5, characterized in that: A positioning top shaft (346) is movably inserted into the mold support (341), and the end of the positioning top shaft (346) is movably inserted into the mold groove (343). A retaining ring (347) is fixedly sleeved on the outer surface of the positioning top shaft (346), and a memory spring (348) is provided between the retaining ring (347) and the mold support (341). A positioning seat (349) is fixedly provided at the bottom of the mold support (341), and a positioning groove (12) is provided on the processing table (1), and the positioning seat (349) is slidably connected in the positioning groove (12).

7. The laryngoscope plastic injection molding device according to claim 6, characterized in that: The cooling element (33) comprises: A circulating cooler (331) fixedly disposed below the processing table (1); A circulation pipe (332), one end of which is fixedly mounted on the circulation cooler (331), and the other end of which passes through the positioning seat (349); A cooling liquid conducting pipe (333) fixedly disposed on the back side of the steel mold (342); A cooling channel is provided in the inner wall of the steel mold (342), and the cooling channel is connected to the circulation pipe (332) via a plurality of cooling liquid conducting pipes (333).

8. The laryngoscope plastic injection molding device according to claim 7, characterized in that: The injection molding unit (31) comprises: A screw extruder (311) is fixedly mounted on the bottom of the processing table (1); An electric heating bin (312) is movably arranged at the bottom of the processing table (1) and connected to the output end of the screw extruder (311); a plurality of injection needles matching the injection holes (344) are fixedly arranged on the top surface of the electric heating bin (312); A supporting bracket (313) fixedly disposed on the bottom of the processing table (1); A lifting cylinder (314) is fixedly mounted on the support bracket (313), and its output end is fixedly connected to the bottom of the electric heating chamber (312); A feed hopper (315) is fixedly arranged on the top of the processing table (1), and its bottom end is connected to the feed port of the screw extruder (311).

9. A laryngoscope plastic injection molding process, based on the laryngoscope plastic injection molding equipment according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: Use the laryngoscope plastic handle as a process handle for positioning and loading; Step 2: Synchronously injecting the ends of multiple groups of laryngoscopes to form a soft rubber outer layer; Step 3: After the soft rubber layer cools down, batch unloading is completed automatically.

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