Forced feeding equipment for food-grade silica gel injection molding parts

Abstract

The invention discloses forcible feeding equipment for food-grade silica gel injection molding parts, and relates to the technical field of conveying equipment.The forcible feeding equipment comprises two opposite driving devices, two conveying pipes are symmetrically installed between the two driving devices, the outer wall of one conveying pipe is connected with an adjusting box, and the outer walls of the two sides of the other conveying pipe are provided with a feeding port and a discharging port correspondingly; two sets of auxiliary hinge wheels are symmetrically and rotationally installed in the adjusting box, and a cleaning mechanism is rotationally installed on the lower portion between the two sets of auxiliary hinge wheels. A movable rod in the cleaning mechanism is extruded by a steel cable to retract inwards, a first ventilation pipe hole is communicated with a second ventilation pipe hole and a third ventilation pipe hole through two sets of through holes to form a passage, fine particles attached to the outer walls of the two sides of a material pushing disc are rapidly cleaned by spraying high-pressure gas, and therefore the process is repeated for multiple times, and the cleaning efficiency is improved. Fine silica gel raw material particles are prevented from remaining on the outer wall of the pushing disc to pollute raw materials conveyed next time, and the production quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of conveying equipment, in particular to a forced feeding device for food-grade silicone injection molding parts. Background Art

[0002] Food-grade silicone injection molding parts are plastic products made of food-grade silicone raw materials through injection molding. Food-grade silicone has the characteristics of being non-toxic and tasteless, resistant to high and low temperatures, resistant to aging, soft and comfortable, and meets food hygiene and safety standards. It is widely used in food, medical, maternal and child care and other fields. The hygiene requirements for the production and processing of food-grade silicone injection molding parts are relatively high, so the granular raw materials can be transported by a tube chain machine; There is a tube chain machine with steel cable as the key component of power transmission. This tube chain machine is mainly composed of conveying pipelines made of stainless steel and other materials. It can form a channel for material transportation and has good sealing and corrosion resistance. The steel cable is the key to power transmission. It runs through the entire pipeline and circulates under the drive of the drive device (including motor, reducer, etc., speed switch). The push plate is fixed on the steel cable. It can push the material forward according to the material characteristics and pipeline size design. The tensioning device is used to adjust the tension of the steel cable to ensure its operation is moderately tight. In addition, there are feed ports and discharge ports, which are located at the starting and end of the pipeline respectively. Valves or control devices are often equipped to regulate the material in and out speed. Because the tube chain machine can achieve fully enclosed transportation during the transportation process, it effectively avoids the contact between the raw materials and the external environment, prevents dust, impurities and other pollutants from mixing into the raw materials, and ensures the purity and hygiene of the raw materials. At the same time, the tube chain machine also has the advantages of stable transportation, low energy consumption, and small footprint. It can efficiently transport granular raw materials to the injection molding machine and improve production efficiency.

[0003] However, the tube chain machine introduced above still has some shortcomings. First, during the transportation process, smaller granular raw materials will contact the outer walls of both sides of the push plate with a large area. When transporting raw materials, some raw materials may be squeezed, rubbed, etc. and local hot melting may occur. As a result, some fine raw materials may still be attached to the push plate after the discharge is completed. If they are not cleaned in time, cross contamination will occur when other raw materials are transported later, which will reduce the purity of the raw materials and may affect the subsequent processing quality. Therefore, this case proposes a forced feeding equipment for food-grade silicone injection molding parts. Summary of the invention

[0004] Based on this, the purpose of the present invention is to provide a forced feeding device for food-grade silicone injection molding parts to solve the technical problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a forced feeding device for food-grade silicone injection molding parts, comprising two sets of relative driving devices, two sets of feeding pipes are symmetrically installed between the two sets of driving devices, the outer wall of one set of feeding pipes is connected to an adjusting box, and the outer walls on both sides of the other set of feeding pipes are respectively provided with a feeding port and a discharging port, two sets of auxiliary hinge wheels are symmetrically installed in the regulating box, a cleaning mechanism is rotatably installed below the two sets of auxiliary hinge wheels, and is used for automatically cleaning the outer walls on both sides of the pushing plate, and a dust reduction mechanism is provided at the bottom end of the inner wall of the cleaning mechanism; The cleaning mechanism includes an adjusting hinge wheel installed inside the adjusting box, the outer wall of the adjusting hinge wheel is fixed with multiple groups of hinge teeth in an equiangular array around the center of a circle, the outer wall of each group of hinge teeth is provided with a wire groove, the inner wall of the adjusting hinge wheel is symmetrically provided with two groups of connecting tube cavities, and a movable rod is slidably installed inside the connecting tube cavity, the outer wall of the movable rod is provided with through holes matching in size and shape at the contact position between the second ventilation pipe hole and the third ventilation pipe hole, each group of hinge teeth is provided with a second ventilation pipe hole, the inside of the hinge teeth is provided with a third ventilation pipe hole near the edge, a first ventilation pipe hole is provided between the second ventilation pipe hole and the third ventilation pipe hole, the second ventilation pipe hole and the third ventilation pipe hole are both connected to the first ventilation pipe hole, and an adjusting mechanism that can drive the adjusting hinge wheel to move up and down by a micro-distance is slidably installed on the outer wall of one side of the adjusting box.

[0006] When the cam is in a state of being moved along the axis of the second and third axes, the two axes of movement of the cam are such that the cam is moved inwards and outwards, and ..., and the cam is moved inwards, and the cam is moved inwards, and the cam is moved inwards, and the cam is moved inwards, and the cam is moved inwards, and the cam is moved inwards, and the A certain interval is reserved between the outer wall of one side of each two sets of hinge teeth and the outer wall of one side of the push plate, so that push plates with different intervals can be used to prevent the equipment from getting stuck.

[0007] Furthermore, a hollow chamber is opened inside the adjusting hinge wheel, and one end of the first ventilation pipe hole is connected to the inner wall of the hollow chamber. A docking groove is opened at the center position of the outer wall of one side of the adjusting hinge wheel, and a sealing disk is fixed inside the docking groove by multiple sets of bolts.

[0008] By adopting the above technical solution, a plurality of sets of fixing bolts are inserted into the outer wall of the sealing disk in an array with equal angles around the center of the circle, and matching threaded holes are provided at the contact positions between the inner wall of the docking groove and the fixing bolts.

[0009] Furthermore, a seal is installed at the contact position between the sealing disk and the inner wall of the docking groove, and the seal is used to ensure the airtightness of the hollow chamber. A connecting shaft is fixed at the center position of the outer wall of the sealing disk away from the adjusting hinge wheel, and the connecting shaft is rotatably connected to the inner wall of the adjusting box through a bearing.

[0010] By adopting the above technical solution, the adjusting hinge wheel is connected to the adjusting box through the cylindrical shaft and the connecting shaft through the rotating bearing, thereby providing stable support for the operation of the adjusting hinge wheel.

[0011] Furthermore, threads are provided on the inner walls at both ends of the second ventilation pipe hole and the third ventilation pipe hole, and spray nozzles are threadedly connected to the inner walls at both sides of the second ventilation pipe hole and the third ventilation pipe hole, and the second ventilation pipe hole and the third ventilation pipe hole are connected to the spray nozzles.

[0012] By adopting the above technical solution, the high-pressure gas inside the second ventilation pipe hole and the third ventilation pipe hole is led out and diffused through the nozzle, thereby realizing rapid cleaning of fine particles on the outer wall of the push plate.

[0013] Furthermore, a limiting ring is fixedly sleeved on the outer wall of the movable rod, a spring is sleeved on the outer wall of the movable rod, and the outer wall of one end of the spring is in contact with the limiting ring, and the other end of the spring is in contact with the inner wall of the connecting tube cavity, and a seal is installed at the sliding connection between the outer wall of the movable rod and the through hole, and the seal is used to ensure the air tightness between the movable rod and the inner wall of the connecting tube cavity.

[0014] By adopting the above technical solution, the limit ring can cooperate with the spring to provide the movable rod with power to extend and rebound. When the steel cable squeezes the cushion block and the movable rod retracts, the two groups of through holes are respectively connected to the second ventilation pipe hole and the third ventilation pipe hole to lead out the high-pressure gas. When the steel cable is separated from the cushion block, the spring stretches and drives the movable rod and the cushion block to extend outward. At this time, the through holes are misaligned with the second ventilation pipe hole and the third ventilation pipe hole to achieve automatic closing.

[0015] Furthermore, a pad is threadedly connected to one end of the movable rod near the wire trough, the connection between the pad and the movable rod is made of metal, the outer wall of the pad away from the movable rod is a soft rubber block, and the soft rubber block matches the shape and size of the inner wall of the wire trough.

[0016] By adopting the above technical solution, the soft rubber block on the outer wall of one side of the cushion block can provide a buffer between the steel cable and the cushion block can be twisted to be disassembled and replaced when it is worn after being used for a period of time.

[0017] Furthermore, the adjustment mechanism includes a through groove opened on the outer wall of one side of the adjustment box, a slider is slidably installed inside the through groove, and a mounting frame is fixed to the outer wall of one side of the slider away from the adjustment box.

[0018] By adopting the above technical solution, the slider, the mounting frame and the baffle can be limited by the grooves, thereby ensuring the stability of the parts of the adjustment mechanism when they are adjusted up and down.

[0019] Furthermore, a motor is installed on the surface of the mounting frame, and pulleys are installed on the output end of the motor and the outer wall of the barrel shaft, and power is transmitted to the adjusting hinge wheel by means of the pulley and the belt. A baffle is fixed to the outer wall of the slider on one side close to the adjusting hinge wheel, and the cross-sectional size of the baffle is larger than the cross-sectional size of the groove. An adjusting cylinder is fixedly installed on the outer wall of the adjusting box and located on one side of the groove, and the output end of the adjusting cylinder is fixed to the mounting frame.

[0020] By adopting the above technical solution, the baffle is used to seal the groove to prevent the cleaned fine particles from leaking along the groove. The height of the mounting frame is fine-tuned by starting the adjusting cylinder through the control switch to adjust the tension of the steel cable.

[0021] Furthermore, a cylindrical shaft is fixed at the center position of the outer wall on the other side of the adjusting hinge wheel, an air hole is opened at the center position of the cylindrical shaft, and the cylindrical shaft is connected to the baffle, the slider and the mounting frame by means of bearings, and the air hole in the center of the cylindrical shaft is connected to a constant pressure valve and an air supply device in turn through a sealed bearing and a connecting pipe.

[0022] By adopting the above technical solution, the constant pressure valve can ensure that the air pressure inside the hollow chamber is always maintained at a high value to prevent the pressure from being too low and resulting in poor cleaning effect. When the movable rod is retracted and the second ventilation pipe hole and the third ventilation pipe hole are connected to the first ventilation pipe hole through two sets of through holes, high-pressure gas is instantly ejected to clean the outer wall of the push plate.

[0023] Furthermore, a partition with multiple groups of strip holes on its surface is fixed to the bottom end of the inner wall of the regulating box, and a water bucket is slidably installed below the partition and located at the bottom end of the inner wall of the regulating box, and one end of the water bucket passes through the outer wall of the regulating box.

[0024] By adopting the above technical solution, the floating fine particles are collected by using a water bucket, and the fine particles are mixed with water to prevent them from being raised again to contaminate internal parts and the push plate.

[0025] In summary, the present invention mainly has the following beneficial effects: 1. The present invention shrinks the movable rod in the cleaning mechanism by being squeezed by the steel cable, and uses two groups of through holes to connect the first ventilation pipe hole with the second ventilation pipe hole and the third ventilation pipe hole to form a passage, and uses high-pressure gas to spray out fine particles attached to the outer walls of both sides of the push plate to quickly clean up, thereby reciprocating multiple times to prevent fine silica gel raw material particles from remaining on the outer wall of the push plate to contaminate the raw materials transported next time, thereby ensuring production quality.

[0026] 2. The present invention drives the mounting frame, the slider and the baffle to move up and down a short distance along the groove through the adjusting cylinder in the adjusting structure. The mounting frame drives the adjusting hinge wheel to move up and down at the same time. By increasing or decreasing the distance between the adjusting hinge wheel and the two sets of auxiliary hinge wheels, the tension of the steel cable can be quickly adjusted to prevent the steel cable from being too loose or too tight, which may cause equipment failure.

[0027] 3. The present invention can reduce the drifting distance of fine particles by the adjusting hinge wheel at the lowest position, reduce the possibility of other parts in the adjusting box and the push plate being contaminated again, and finally the scattered fine particles pass through the partition into the water bucket and mix into the water, and the fine particles are mixed with water to prevent them from being lifted up again, and the pull-out water bucket can be easily pulled out for cleaning and inserted for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view of the present invention; Figure 2 It is a cutaway view of the regulating box of the present invention; Figure 3 This is a disassembled diagram of the adjustment mechanism components of the present invention; Figure 4 It is a plan cross-sectional view of the regulating box of the present invention; Figure 5 This is a disassembled diagram of the adjusting hinge wheel of the present invention; Figure 6 It is a plan cross-sectional view of the adjusting hinge wheel of the present invention; Figure 7 A detailed diagram of the internal structure of the adjusting hinge wheel of the present invention; Figure 8 It is a detailed diagram of the movable rod structure of the present invention.

[0029] In the figure: 1. driving device; 11. feeding pipe; 12. regulating box; 121. through groove; 122. partition; 123. bucket; 13. auxiliary reamer; 2. cleaning mechanism; 21. adjusting reamer; 211. docking groove; 212. hollow chamber; 213. cylinder shaft; 214. wire groove; 22. connecting tube cavity; 23. first vent hole; 24. second vent hole; 25. third vent hole; 26. movable rod; 261. through hole; 27. pad; 28. spring; 3. jet head; 4. sealing disk; 41. connecting shaft; 5. mounting frame; 51. slider; 52. baffle; 6. adjusting cylinder. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] The following describes an embodiment of the present invention based on its overall structure.

[0032] A forced feeding device for food grade silicone injection molding parts, such as Figure 1 - Figure 8 As shown, it includes two sets of opposite driving devices 1, two sets of feeding pipes 11 are symmetrically installed between the two sets of driving devices 1, the outer wall of one set of feeding pipes 11 is connected to the regulating box 12, and the outer walls on both sides of the other set of feeding pipes 11 are respectively provided with a feeding port and a discharging port, two sets of auxiliary hinge wheels 13 are symmetrically installed inside the regulating box 12 for rotation, and a cleaning mechanism 2 is rotatably installed below and between the two sets of auxiliary hinge wheels 13 for automatically cleaning the outer walls on both sides of the pushing plate, and a dust reduction mechanism is provided at the bottom end of the inner wall of the cleaning mechanism 2; The cleaning mechanism 2 includes an adjusting hinge wheel 21 installed inside the adjusting box 12, and a plurality of hinge teeth are fixed on the outer wall of the adjusting hinge wheel 21 in an array of equal angles around the center of a circle, and a wire groove 214 is provided on the outer wall of each group of hinge teeth, and two groups of connecting tube cavities 22 are symmetrically provided on the inner wall of the adjusting hinge wheel 21, and a movable rod 26 is slidably installed inside the connecting tube cavity 22, and a through hole 261 of matching size and shape is provided at the contact position between the outer wall of the movable rod 26 and the second ventilation pipe hole 24 and the third ventilation pipe hole 25, and a second ventilation pipe hole 24 is provided inside each group of hinge teeth, and a third ventilation pipe hole 25 is provided inside the hinge teeth near the edge, and a first ventilation pipe hole 23 is provided between the second ventilation pipe hole 24 and the third ventilation pipe hole 25, and the second ventilation pipe hole 24 and the third ventilation pipe hole 25 are both connected to the first ventilation pipe hole 23, and an adjusting mechanism that can drive the adjusting hinge wheel 21 to move up and down by a micro-distance is slidably installed on the outer wall of one side of the adjusting box 12.

[0033] Specifically, the driving device 1 is started to drive the steel cable and the push plate to move forward. When the steel cable drives the push plate to move from one side of the adjusting hinge wheel 21 to the other side, the steel cable will first squeeze the pad 27 and the movable rod 26 on one side of the push plate. At this time, the movable rod 26 shrinks under pressure. After the movable rod 26 shrinks to a predetermined position, the two groups of through holes 261 connect the first ventilation pipe hole 23 with the second ventilation pipe hole 24 and the third ventilation pipe hole 25 at the same time, and then the high-pressure gas inside the hollow chamber 212 flows out from the second ventilation pipe hole 24 and the third ventilation pipe hole 25, and the nozzle 3 is used to aim at both sides of the push plate. The fine particles attached to the outer wall are cleaned. When the steel cable is separated from the cushion block 27, the movable rod 26 loses its extrusion, the spring 28 stretches and drives the movable rod 26 to retract and reset. At the same time, the two groups of through holes 261 are offset and closed at the interface between the second ventilation pipe hole 24 and the third ventilation pipe hole 25. In this way, the two sides of the push plate are cleaned multiple times to prevent fine silicone raw material particles from remaining on the outer wall of the push plate and contaminating the raw materials transported next time, thereby ensuring production quality. A certain interval is reserved between the outer wall of one side of each two groups of hinge teeth and the outer wall of one side of the push plate, which can be used for push plates with different intervals to prevent the equipment from getting stuck.

[0034] See also Figure 5 - Figure 7 A hollow chamber 212 is provided inside the adjusting hinge wheel 21, and one end of the first ventilation pipe hole 23 is connected to the inner wall of the hollow chamber 212. A docking groove 211 is provided at the center of the outer wall of one side of the adjusting hinge wheel 21. A sealing disk 4 is fixedly installed inside the docking groove 211 by multiple groups of bolts. By setting the above structure, the outer wall of the sealing disk 4 is interspersed with multiple groups of fixing bolts in an array of equal angles around the center of the circle, and matching threaded holes are provided at the contact positions between the inner wall of the docking groove 211 and the fixing bolts.

[0035] See also Figure 5 - Figure 7 A seal is installed at the contact position between the sealing disk 4 and the inner wall of the docking groove 211. The seal is used to ensure the airtightness of the hollow chamber 212. A connecting shaft 41 is fixed at the center position of the outer wall of the sealing disk 4 on the side away from the adjusting hinge wheel 21, and the connecting shaft 41 is rotatably connected to the inner wall of the adjusting box 12 through a bearing. By setting the above structure, the adjusting hinge wheel 21 is connected to the adjusting box 12 through the cylindrical shaft 213 and the connecting shaft 41 through the rotating bearing, thereby providing stable support for the operation of the adjusting hinge wheel 21.

[0036] See also Figure 5 - Figure 7Threads are provided on the inner walls at both ends of the second ventilation pipe hole 24 and the third ventilation pipe hole 25, and the inner walls on both sides of the second ventilation pipe hole 24 and the third ventilation pipe hole 25 are threadedly connected with the nozzle 3, and the second ventilation pipe hole 24 and the third ventilation pipe hole 25 are connected to the nozzle 3. By setting the above structure, the present invention can lead out and diffuse the high-pressure gas inside the second ventilation pipe hole 24 and the third ventilation pipe hole 25 through the nozzle 3, so as to realize the rapid cleaning of fine particles on the outer wall of the push plate.

[0037] See also Figure 6 - Figure 8 The outer wall of the movable rod 26 is fixedly sleeved with a limit ring, and the outer wall of the movable rod 26 is sleeved with a spring 28, and the outer wall of one end of the spring 28 is in contact with the limit ring, and the other end of the spring 28 is in contact with the inner wall of the connecting tube cavity 22. The outer wall of the movable rod 26 and the through hole 261 are both installed with seals at the sliding connection, and the seals are used to ensure the air tightness of the movable rod 26 and the inner wall of the connecting tube cavity 22. By setting the above structure, the limit ring can cooperate with the spring 28 to provide the movable rod 26 with power for extending and rebounding. When the steel cable squeezes the cushion block 27 and the movable rod 26 retracts, the two groups of through holes 261 are respectively connected with the second ventilation pipe hole 24 and the third ventilation pipe hole 25 to lead out the high-pressure gas. When the steel cable is separated from the cushion block 27, the spring 28 stretches and drives the movable rod 26 and the cushion block 27 to extend outward. At this time, the through hole 261 is misaligned with the second ventilation pipe hole 24 and the third ventilation pipe hole 25 to achieve automatic closing.

[0038] See also Figure 6 - Figure 8 The end of the movable rod 26 close to the wire groove 214 is threadedly connected with a pad 27, the connection between the pad 27 and the movable rod 26 is made of metal, the outer wall of the pad 27 on the side away from the movable rod 26 is a soft rubber block, and the shape and size of the soft rubber block match the inner wall of the wire groove 214. By setting the above structure, the soft rubber block on the outer wall of one side of the pad 27 can provide a buffer between the steel cable, and when the pad 27 is worn after a period of use, it can be twisted for disassembly and replacement.

[0039] See also Figure 2 - Figure 4 The adjusting mechanism includes a through groove 121 formed on the outer wall of one side of the adjusting box 12, a slider 51 is slidably mounted inside the through groove 121, and a mounting frame 5 is fixed to the outer wall of the slider 51 away from the adjusting box 12. By setting the above structure, the present invention can limit the slider 51, the mounting frame 5 and the baffle 52 through the through groove 121 to ensure the stability of the parts of the adjusting mechanism when they are adjusted up and down.

[0040] See also Figure 2 - Figure 4A motor is installed on the surface of the mounting frame 5, and pulleys are installed on the output end of the motor and the outer wall of the barrel shaft 213, and the pulleys and belts are used to transmit power to the adjusting hinge wheel 21. A baffle 52 is fixed to the outer wall of the slider 51 on one side close to the adjusting hinge wheel 21, and the cross-sectional size of the baffle 52 is larger than the cross-sectional size of the through groove 121. An adjusting cylinder 6 is fixedly installed on the outer wall of the adjusting box 12 and located on one side of the through groove 121, and the output end of the adjusting cylinder 6 is fixed to the mounting frame 5. By setting the above structure, the present invention uses the baffle 52 to seal the through groove 121 to prevent the cleaned fine particles from leaking along the through groove 121, and the height of the mounting frame 5 is fine-tuned by starting the adjusting cylinder 6 through the control switch to adjust the tension of the steel cable.

[0041] See also Figure 3 - Figure 7 A cylindrical shaft 213 is fixed at the center position of the outer wall on the other side of the adjusting hinge wheel 21, and an air hole is opened at the center position of the cylindrical shaft 213, and the cylindrical shaft 213 is connected to the baffle 52, the slider 51 and the mounting frame 5 by means of bearings. The air hole at the center of the cylindrical shaft 213 is connected to a constant pressure valve and an air supply device in turn through a sealed bearing and a connecting pipe. By setting the above structure, the constant pressure valve can ensure that the air pressure inside the hollow chamber 212 is always maintained at a high value to prevent the pressure from being too low and causing a poor cleaning effect. When the movable rod 26 is retracted, the second ventilation pipe hole 24 and the third ventilation pipe hole 25 are connected to the first ventilation pipe hole 23 by means of two groups of through holes 261, and the high-pressure gas is instantly ejected to clean the outer wall of the push plate.

[0042] See also Figure 2 - Figure 4 A partition 122 with multiple groups of strip holes on its surface is fixed to the bottom end of the inner wall of the regulating box 12, and a water bucket 123 is slidably installed below the partition 122 and located at the bottom end of the inner wall of the regulating box 12, and one end of the water bucket 123 penetrates the outer wall of the regulating box 12. By setting the above structure, the present invention uses the water bucket 123 to collect the floating fine particles, and at the same time, the water is mixed with the fine particles to prevent them from being lifted up again to contaminate the internal parts and the push plate.

[0043] The working principle of the present invention is as follows: first start the driving device 1 to drive the steel cable and the push plate to move forward. When the steel cable drives the push plate to move from one side of the adjusting hinge wheel 21 to the other side, the steel cable will first squeeze the pad 27 and the movable rod 26 on one side of the push plate. At this time, the movable rod 26 is compressed and retracted. The movable rod 26 drives the limit ring to squeeze the spring 28 to deform into the movable rod 26 to extend outward and provide the power for resetting the extension. After the movable rod 26 is retracted to the predetermined position, the two groups of through holes 261 are both arc-shaped structures, which can prevent the second ventilation pipe hole 24 and the third ventilation pipe hole 25 from misaligning at the interface with the through hole 261, resulting in leakage, and the first ventilation pipe hole 23 is connected with the second ventilation pipe hole 24 and the third ventilation pipe hole 25 at the same time. Then the high-pressure gas inside the hollow chamber 212 flows out from the second vent hole 24 and the third vent hole 25, which are connected only by the squeezed movable rod 26, and the nozzle 3 is used to clean the fine particles attached to the outer walls of both sides of the push plate. When the steel cable is separated from the cushion block 27, the movable rod 26 loses its squeezing, and the spring 28 stretches and drives the movable rod 26 to retract and reset. At the same time, the two groups of through holes 261 are staggered and closed at the interface between the second vent hole 24 and the third vent hole 25. In this way, the surfaces of both sides of the push plate are cleaned multiple times to prevent fine silica gel raw material particles from remaining on the outer wall of the push plate and contaminating the raw materials to be transported next time, thereby ensuring production quality. Finally, the fine particles blown off fall down and fall into the water bucket 123 along the sieve holes on the surface of the partition 122. The water in the water bucket 123 is mixed with the fine particles to prevent the fine particles from being blown up again. At the same time, the pull-out water bucket 123 can be easily cleaned in a centralized manner. The two groups of auxiliary hinge wheels 13 and the adjusting hinge wheel 21 are inverted triangles. The adjusting hinge wheel 21 is located between the two groups of auxiliary hinge wheels 13, and the horizontal height of the adjusting hinge wheel 21 is lower than that of the two groups of auxiliary hinge wheels 13. The adjusting hinge wheel 21 is close to the partition 122 and the water bucket 123, which can reduce the fine particles blown away from floating and polluting other parts and the push plate.

[0044] When the steel cable becomes loose after the equipment has been used for a period of time, the adjusting cylinder 6 is started by controlling the switch to drive the mounting frame 5, the slider 51, the baffle 52 and the adjusting hinge wheel 21 to move downward along the groove 121, and the micro-tensioning adjustment is performed by increasing the distance between the adjusting hinge wheel 21 and the two sets of auxiliary hinge wheels 13, wherein the baffle 52 can always close the groove 121 to prevent leakage of fine particles.

[0045] Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A forced feeding device for food grade silicone injection molding, characterized in that: The invention comprises two sets of driving devices (1) facing each other, two sets of feeding pipes (11) are symmetrically installed between the two sets of driving devices (1), the outer wall of one set of feeding pipes (11) is connected to a regulating box (12), and the outer walls on both sides of the other set of feeding pipes (11) are respectively provided with a feeding port and a discharging port, two sets of auxiliary hinge wheels (13) are symmetrically installed in the regulating box (12), a cleaning mechanism (2) is rotatably installed below the two sets of auxiliary hinge wheels (13), and is used for automatically cleaning the outer walls on both sides of the pushing plate, and a dust reduction mechanism is provided at the bottom end of the inner wall of the cleaning mechanism (2); The cleaning mechanism (2) comprises an adjusting hinge wheel (21) installed inside the adjusting box (12), the outer wall of the adjusting hinge wheel (21) is fixed with a plurality of groups of hinge teeth in an array of equal angles around the center of a circle, the outer wall of each group of hinge teeth is provided with a wire groove (214), the inner wall of the adjusting hinge wheel (21) is symmetrically provided with two groups of connecting cavities (22), and a movable rod (26) is slidably installed inside the connecting cavities (22), and the outer wall of the movable rod (26) is provided with a size and Through holes (261) of matching shapes are provided, a second ventilation pipe hole (24) is provided inside each group of hinge teeth, a third ventilation pipe hole (25) is provided inside the hinge teeth near the edge, a first ventilation pipe hole (23) is provided between the second ventilation pipe hole (24) and the third ventilation pipe hole (25), the second ventilation pipe hole (24) and the third ventilation pipe hole (25) are both connected to the first ventilation pipe hole (23), and an adjustment mechanism capable of driving the adjustment hinge wheel (21) to move up and down in a micro-distance is slidably mounted on an outer wall of one side of the adjustment box (12).

2. A forced feeding device for food grade silicone injection molding according to claim 1, characterized in that: A hollow chamber (212) is provided inside the adjusting hinge wheel (21), and one end of the first ventilation pipe hole (23) is connected to the inner wall of the hollow chamber (212). A docking groove (211) is provided at the center of an outer wall of one side of the adjusting hinge wheel (21), and a sealing disk (4) is fixedly installed inside the docking groove (211) by means of multiple groups of bolts.

3. A forced feeding device for food grade silicone injection molding according to claim 2, characterized in that: A sealing member is installed at the contact position between the sealing disk (4) and the inner wall of the docking groove (211), and the sealing member is used to ensure the airtightness of the hollow chamber (212). A connecting shaft (41) is fixed at the center position of the outer wall of the sealing disk (4) on the side away from the adjusting hinge wheel (21), and the connecting shaft (41) is rotatably connected to the inner wall of the adjusting box (12) via a bearing.

4. A forced feeding device for food grade silicone injection molding according to claim 1, characterized in that: The inner walls at both ends of the second ventilation pipe hole (24) and the third ventilation pipe hole (25) are provided with threads, and the inner walls at both ends of the second ventilation pipe hole (24) and the third ventilation pipe hole (25) are threadedly connected to the spray heads (3), and the second ventilation pipe hole (24) and the third ventilation pipe hole (25) are both connected to the spray heads (3).

5. A forced feeding device for food grade silicone injection molding according to claim 1, characterized in that: The outer wall of the movable rod (26) is fixedly sleeved with a limit ring, the outer wall of the movable rod (26) is sleeved with a spring (28), and the outer wall of one end of the spring (28) is in contact with the limit ring, and the other end of the spring (28) is in contact with the inner wall of the connecting tube cavity (22), and a sealing member is installed at the sliding connection between the outer wall of the movable rod (26) and the through hole (261), and the sealing member is used to ensure the air tightness between the movable rod (26) and the inner wall of the connecting tube cavity (22).

6. A forced feeding device for food grade silicone injection molding according to claim 1, characterized in that: A cushion block (27) is threadedly connected to one end of the movable rod (26) close to the wire groove (214); the connection between the cushion block (27) and the movable rod (26) is made of metal; the outer wall of the cushion block (27) on the side away from the movable rod (26) is a soft rubber block; and the shape and size of the soft rubber block match the inner wall of the wire groove (214).

7. A forced feeding device for food grade silicone injection molding according to claim 1, characterized in that: The regulating mechanism comprises a through slot (121) formed on an outer wall of one side of the regulating box (12), a sliding block (51) being slidably mounted inside the through slot (121), and a mounting frame (5) being fixed to an outer wall of a side of the sliding block (51) away from the regulating box (12).

8. A forced feeding device for food grade silicone injection molding according to claim 7, characterized in that: A motor is mounted on the surface of the mounting frame (5), and a pulley is mounted on the output end of the motor and the outer wall of the cylindrical shaft (213), and power is transmitted to the adjusting hinge wheel (21) by means of the pulley and the belt. A baffle (52) is fixed to the outer wall of the slider (51) on one side close to the adjusting hinge wheel (21), and the cross-sectional dimension of the baffle (52) is larger than the cross-sectional dimension of the through groove (121). An adjusting cylinder (6) is fixedly mounted on the outer wall of the adjusting box (12) and located on one side of the through groove (121), and the output end of the adjusting cylinder (6) is fixed to the mounting frame (5).

9. A forced feeding device for food grade silicone injection molding according to claim 8, characterized in that: A cylindrical shaft (213) is fixed at the center of the outer wall of the other side of the regulating hinge wheel (21), an air hole is opened at the center of the cylindrical shaft (213), and the cylindrical shaft (213) is connected to the baffle (52), the slider (51) and the mounting frame (5) by means of a bearing, and the air hole at the center of the cylindrical shaft (213) is connected to a constant pressure valve and an air supply device in sequence through a sealing bearing and a connecting pipe.

10. A forced feeding device for food grade silicone injection molding according to claim 9, characterized in that: A partition plate (122) having a plurality of strip-shaped holes on its surface is fixed to the bottom end of the inner wall of the regulating box (12), and a water bucket (123) is slidably mounted below the partition plate (122) and located at the bottom end of the inner wall of the regulating box (12), and one end of the water bucket (123) penetrates the outer wall of the regulating box (12).

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