Blow molding machine with nozzle protection effect
By setting a protective mechanism for fastening screw sleeves, cross brackets and shock-absorbing spring rods on the outer wall of the blow molding machine, the problems of spout wires and short service life are solved, and effective protection of spouts and extended service life are achieved.
Patent Information
- Application Number
- CN202420470030.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-03-12
AI Technical Summary
When existing blow molding machines blow molding the tubular plastic, the nozzle is prone to slipping, and long-term downward punching pressure will damage the nozzle and shorten its service life.
A blow molding machine with spout protection effect is designed. By providing a protective mechanism for fastening screw sleeves, cross brackets and shock-absorbing spring rods on the outer wall of the spout, the threads of the tightening screw sleeves are opposite to the threads of the spout and the air outlet pipe. The cross bracket provides support when the nozzle drops, and the shock-absorbing spring rod slows down pressure.
Effectively prevent the spout slip wire, slow down the downforce, extend the service life of the spout, and improve the stability of the blow molding process.
Smart Images
Figure CN222431559U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of blow molding, in particular to a blow molding machine with a nozzle protection effect. Background Art
[0002] Blow molding, also known as hollow blow molding, is a rapidly developing plastic processing method. The tubular plastic preform obtained by extrusion or injection molding of thermoplastic resin is placed in a split mold while hot or heated to a softened state. After the mold is closed, compressed air is immediately introduced into the preform to inflate the plastic preform and make it adhere tightly to the inner wall of the mold. After cooling and demolding, various hollow products are obtained.
[0003] Blow molding machine is a plastic processing machine. After the liquid plastic is sprayed out, the wind blown out by the machine is used to blow the plastic body to a certain shape of the mold cavity to make a product. This machine is called a blow molding machine. The plastic is melted and quantitatively extruded in the screw extruder, and then formed through the mouth film, and then cooled by the wind ring, and then pulled by a traction machine at a certain speed, and the winder winds it into a roll.
[0004] In the process of realizing the utility model, the inventors found that the prior art had the following problems: 1. When the existing blow molding machine is performing blow molding operation on tubular plastic, its nozzle will be subjected to a downward impact pressure from the hot air machine, which makes it easy for the wire to slip; 2. When the existing blow molding machine is performing blow molding operation on tubular plastic, its nozzle will be subjected to a downward impact pressure for a long time, which will cause certain damage to its body, thereby reducing its service life. Utility Model Content
[0005] The utility model aims to provide a blow molding machine with a nozzle protection effect, so as to solve the problem proposed in the above background technology that when the existing blow molding machine is blow-molding a tubular plastic, its nozzle will be subjected to a downward impact force of a hot air machine, which makes it easy to slip; 2. When the existing blow molding machine is blow-molding a tubular plastic, its nozzle will be subjected to a downward impact force for a long time, which will cause certain damage to its body, thereby reducing its service life. To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blow molding machine with a nozzle protection effect, comprising a chassis, a material feeding mechanism is horizontally penetrated through the outer wall of one side of the chassis, a feeding port is provided on the top side of the material feeding mechanism, a conveying box is sleeved on the outer wall of the material feeding mechanism, an extrusion die is provided at the end of the material feeding mechanism, a telescopic slide is threadedly connected to the outer wall of the chassis directly below the material feeding mechanism, a model mechanism is slidably connected to the outer wall of the telescopic slide, a hot air blower is provided on the outer wall of the other side of the chassis located at the material feeding mechanism, a hydraulic air valve is provided in the middle of the bottom of the hot air blower, an air outlet pipe is provided at the bottom of the hydraulic air valve, the bottom end of the air outlet pipe is threadedly connected to the nozzle, and the outer wall of the nozzle is provided with a protection mechanism.
[0006] Further preferably, the material conveying mechanism is composed of a servo motor and a conveying screw, wherein the conveying screw is plugged into the output end of the servo motor.
[0007] Further preferably, a heating pipe is fixedly installed inside the conveying box.
[0008] Further preferably, the space inside the conveying box gradually decreases from large to small from the chassis to the extrusion die head.
[0009] Further preferably, the model mechanism is composed of mold a, mold b, hydraulic push rod a, hydraulic push rod b and a slider. The hydraulic push rod a and hydraulic push rod b are respectively threadedly connected to the top of the slider on the left and right sides, and the mold a and mold b are respectively provided at the driving ends of the hydraulic push rod a and the hydraulic push rod b. At the same time, the sliders on the left and right sides are slidably connected to the track of the telescopic slide rail.
[0010] Further preferably, the protective mechanism is composed of a fastening screw sleeve, a cross bracket and a shock-absorbing spring rod, wherein the fastening screw sleeve is threadedly connected to the outer wall thread of the nozzle, and the internal thread of the fastening screw sleeve is opposite to the thread direction between the nozzle and the air outlet pipe, and a cross bracket is provided on the annular outer wall of the fastening screw sleeve, and a shock-absorbing spring rod is also provided at the bottom end of the cross bracket.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] In the utility model, an operator pours plastic raw particles from a feed port into the interior of a conveying box, and starts a servo motor to drive a conveying screw to start rotating and conveying the plastic raw particles. The plastic raw particles are pressurized and heated by a heating tube inside the conveying box, converted into molten liquid, and finally conveyed to the interior of an extrusion die head. According to the shape set inside the extrusion die head, the plastic raw particles are extruded into a tubular solid and then extruded from an extrusion port. At the same time, an operator can simultaneously start a hydraulic push rod a and a hydraulic push rod b to push the mold a and the mold b to merge into a whole, and wrap the plastic body extruded into a tubular shape inside the mold, and then start a telescopic slide rail to move the entire model mechanism and the tubular plastic body inside the mold mechanism to the bottom of the nozzle for blow molding.
[0013] In the utility model, the fastening screw sleeve arranged at the outer wall of the nozzle has a thread direction opposite to that of the thread connecting the nozzle and the air outlet pipe. Therefore, when the two become loose, the nozzle can be tightened in the opposite direction, thereby effectively preventing the further occurrence of thread slippage. The cross bracket arranged at the outer wall of the fastening screw sleeve can be supported on the top of the mold when the nozzle descends to the inside of the model mechanism to play a supporting role, and the shock-absorbing spring rod arranged at the bottom of the cross bracket can reduce and dilute the downward pressure exerted on the entire nozzle 11 during the blow molding process, thereby playing an auxiliary protective role. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the front view structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the side cross-sectional structure of the utility model;
[0016] Figure 3 This is a schematic diagram of the top view structure of the utility model;
[0017] Figure 4 This is a schematic diagram of the explosion structure of the material transfer mechanism of the utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the protection mechanism of the utility model;
[0019] Figure 6 This is a schematic diagram of the structure of the hot air blower of the utility model.
[0020] In the figure: 1. chassis; 2. material transmission mechanism; 201. servo motor; 202. transmission screw; 3. feed port; 4. conveying box; 401. heating tube; 5. extrusion die head; 6. telescopic slide rail; 7. model mechanism; 701. mold a; 702. mold b; 703. hydraulic push rod a; 704. hydraulic push rod b; 705. slide block; 8. hot air blower; 9. hydraulic air valve; 10. outlet pipe; 11. nozzle; 12. protection mechanism; 1201. fastening screw sleeve; 1202. cross bracket; 1203. shock-absorbing spring rod. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figures 1 to 6The utility model provides a technical solution: a blow molding machine with a nozzle protection effect, comprising a chassis 1, a material feeding mechanism 2 is horizontally penetrated through the outer wall of one side of the chassis 1, a feeding port 3 is arranged on the top side of the material feeding mechanism 2, a conveying box 4 is sleeved on the outer wall of the material feeding mechanism 2, an extrusion die head 5 is arranged at the end of the material feeding mechanism 2, a telescopic slide rail 6 is threadedly connected to the outer wall of the chassis 1 directly below the material feeding mechanism 2, a model mechanism 7 is slidably connected to the outer wall of the telescopic slide rail 6, a hot air blower 8 is arranged on the outer wall of the other side of the chassis 1 located at the material feeding mechanism 2, a hydraulic air valve 9 is arranged in the middle of the bottom of the hot air blower 8, an air outlet pipe 10 is arranged at the bottom of the hydraulic air valve 9, a nozzle 11 is threadedly connected to the bottom end of the air outlet pipe 10, and a protective mechanism 12 is arranged on the outer wall of the nozzle 11.
[0023] In this embodiment, Figure 2 and Figure 4 As shown, the feeding mechanism 2 is composed of a servo motor 201 and a conveying screw 202, wherein the output end of the servo motor 201 is plugged with the conveying screw 202; it should be noted that the operator first pours the original plastic particles from the feed port 3 into the interior of the feeding mechanism 2, and then starts the servo motor 201, so that the output end of the servo motor 201 starts to rotate, and drives the conveying screw 202 plugged therewith to rotate inside the conveying box 4. During the rotation of the conveying screw 202, the original plastic particles surrounded by the outer wall of the rod body are conveyed to the heating tube 401 for heating and pressurization, thereby converting the original plastic particles into molten liquid, and these molten liquids are again conveyed by the conveying screw 202 to the extrusion die 5 for extrusion.
[0024] In this embodiment, Figure 2 and Figure 4 As shown, a heating tube 401 is fixedly installed inside the conveying box 4; it should be noted that when the operator pours the plastic particles from the feed port 3 into the conveying box 4, the operator can simultaneously start the servo motor 201, so that the servo motor 201 drives the conveying screw 202 to start rotating, and spirally conveys these plastic particles to a deeper part of the conveying box 4. At this time, the operator can start the heating tube 401 fixedly installed at the center of the conveying box 4 so that the plastic particles can be evenly heated by the heating tube 401 when being conveyed to the center of the conveying box 4, thereby being converted into molten liquid, and then the conveying screw 202 conveys these molten liquids to the extrusion die 5 for extrusion.
[0025] In this embodiment, Figure 2 and Figure 4As shown, the space inside the conveying box 4 gradually decreases from the chassis 1 to the extrusion die 5; it should be noted that when the operator pours the plastic particles from the feed port 3 into the interior of the conveying box 4, and starts the servo motor 201 to drive the conveying screw 202 to start rotating, the plastic particles will be driven by the conveying screw 202 and gradually move deeper into the conveying box 4. In this process, the plastic particles will first be uniformly heated by the heating tube 401 provided in the center of the conveying box 4 and converted into molten liquid. In this process, because the space inside the conveying box 4 decreases from large to small, a certain pressure can be applied to the molten liquid, and the heated and pressurized molten liquid is transported to the interior of the extrusion die 5 and extruded therefrom.
[0026] In this embodiment, Figure 1 and Figure 3 As shown, the model mechanism 7 is composed of a mold a701, a mold b702, a hydraulic push rod a703, a hydraulic push rod b704 and a slider 705. The hydraulic push rod a703 and the hydraulic push rod b704 are respectively threadedly connected to the top of the slider 705 on the left and right sides, and the mold a701 and the mold b702 are respectively arranged on the driving ends of the hydraulic push rod a703 and the hydraulic push rod b704. At the same time, the sliders 705 on the left and right sides are slidably connected to the track of the telescopic slide rail 6. It should be noted that when the pressurized and heated molten liquid is transported to the extrusion die head 5, it will The molten liquid is extruded into a tubular solid through the shape set inside the extrusion die 5, and then extruded from the extrusion port. At the same time, the operator can simultaneously start the hydraulic push rod a703 and the hydraulic push rod b704, so that the driving ends of the hydraulic push rod a703 and the hydraulic push rod b704 push the mold a701 and the mold b702 connected to the two respectively to merge into a whole, and wrap the plastic body extruded into a tubular shape inside it, and then start the telescopic slide rail 6 to move the entire model mechanism 7 and the tubular plastic body inside it to the bottom of the nozzle 11 for blow molding operation.
[0027] In this embodiment, Figure 5 and Figure 6As shown, the protective mechanism 12 is composed of a fastening screw sleeve 1201, a cross bracket 1202 and a shock-absorbing spring rod 1203, wherein the fastening screw sleeve 1201 is screwed to the outer wall thread of the nozzle 11, and the internal thread of the fastening screw sleeve 1201 is opposite to the thread direction between the nozzle 11 and the air outlet pipe 10, and a cross bracket 1202 is provided on the annular outer wall of the fastening screw sleeve 1201, and a shock-absorbing spring rod 1203 is also provided at the bottom end of the cross bracket 1202; it should be noted that during the use of the nozzle 11, because the threaded connection mode forms a pair of opposing forces with the downward blowing force of the hot air blower 8, it is easy to slip during the blow molding process, so that the internal hot air leakage will cause a certain danger, and the utility model is provided with a protective mechanism 12 on the outer wall of the nozzle 11, which can effectively prevent the occurrence of such a situation, and its specific operation is that when the model mechanism 7 carries the tubular plastic body inside it to slide to the right below the nozzle 11 When the hot air blower 8 is in the state of being blown, the hot air blower 8 will be started at the same time, and under the push of the hydraulic air valve 9, the hot air inside it will be transported to the air outlet pipe 10, and then transported to the nozzle 11 by the air outlet pipe 10. At this time, the nozzle 11 will blow the hot air to the inside of the tubular plastic body wrapped by the model mechanism 7, and blow it into a specific shape. In this process, the fastening screw sleeve 1201 arranged at the outer wall of the nozzle 11 has a thread in the opposite direction to the thread connecting the nozzle 11 and the air outlet pipe 10, so when the two are loose, the position of the nozzle 11 can be tightened in the opposite direction, thereby effectively preventing the further occurrence of the phenomenon of thread slippage. The cross bracket 1202 arranged at the outer wall of the fastening screw sleeve 1201 can be supported on the top of the mold when the nozzle 11 descends to the inside of the model mechanism 7, and plays a supporting role. The shock-absorbing spring rod 1203 arranged at the bottom of the cross bracket 1202 can slow down and dilute the downward pressure on the entire nozzle 11 during the blow molding process, thereby playing an auxiliary protective role.
[0028] The use method and advantages of the utility model: When the blow molding machine with nozzle protection effect is used, the working process is as follows:
[0029] like Figures 1 to 6As shown, first, the operator pours the plastic particles from the feed port 3 into the interior of the feeding mechanism 2, and then starts the servo motor 201, so that the output end of the servo motor 201 starts to rotate, and drives the transmission screw 202 connected thereto to rotate inside the conveying box 4. During the rotation of the transmission screw 202, the plastic particles surrounded by the outer wall of the rod are transported to the heating tube 401 provided in the center of the conveying box 4 for uniform heating and converted into molten liquid. In this process, because the space inside the conveying box 4 is changed from large to small, a certain pressure can be applied to the molten liquid. The heated and pressurized molten liquid is transported to the interior of the extrusion die 5, extruded into a tubular solid according to the shape set inside the extrusion die 5, and extruded from the extrusion port. At the same time, the operator can simultaneously start the hydraulic push rod a703 and the hydraulic push rod b704, so that the hydraulic push rod a703 and the hydraulic push rod b704 are The driving end of rod b704 pushes the mold a701 and mold b702 connected to them respectively to merge into a whole, and wraps the plastic body extruded into a tubular shape inside it, and then starts the telescopic slide rail 6 to move the entire model mechanism 7 and the tubular plastic body inside it to the bottom of the nozzle 11. At this time, the hot air blower 8 will be started, and under the push of the hydraulic air valve 9, the hot air inside it will be transported to the nozzle 11 through the outlet pipe 10, and the hot air will be blown to the inside of the tubular plastic body wrapped by the model mechanism 7 through the nozzle 11 to blow it into a specific shape. During this process, the fastening screw sleeve 1201 arranged at the outer wall of the nozzle 11 can prevent the nozzle 11 from slipping because its thread is opposite to the thread direction of the connection between the nozzle 11 and the outlet pipe 10. The cross bracket 1202, when supported on the top of the mold, can reduce and dilute the downward pressure on the nozzle 11 through the shock-absorbing spring rod 1203 arranged at its bottom, thereby playing a protective role.
[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A blow molding machine with nozzle protection effect, comprising a chassis (1), characterized in that: A material transfer mechanism (2) is transversely penetrated through the outer wall of one side of the chassis (1), a material feed port (3) is provided on one side of the top of the material transfer mechanism (2), a conveying box (4) is sleeved on the outer wall of the material transfer mechanism (2), an extrusion die head (5) is provided at the end of the material transfer mechanism (2), a telescopic slide rail (6) is threadedly connected to the outer wall of the chassis (1) directly below the material transfer mechanism (2), a model mechanism (7) is slidably connected to the outer wall of the telescopic slide rail (6), a hot air blower (8) is provided on the outer wall of the other side of the chassis (1) located at the material transfer mechanism (2), a hydraulic air valve (9) is provided in the middle of the bottom of the hot air blower (8), an air outlet pipe (10) is provided at the bottom of the hydraulic air valve (9), a nozzle (11) is threadedly connected to the bottom end of the nozzle (11), and a protective mechanism (12) is provided on the outer wall of the nozzle (11).
2. A blow molding machine with nozzle protection effect according to claim 1, characterized in that: The material conveying mechanism (2) is composed of a servo motor (201) and a conveying screw (202), wherein the conveying screw (202) is plugged into the output end of the servo motor (201).
3. A blow molding machine with nozzle protection effect according to claim 1, characterized in that: A heating pipe (401) is fixedly installed inside the conveying box (4).
4. A blow molding machine with nozzle protection effect according to claim 1, characterized in that: The space inside the conveying box (4) gradually decreases from the machine box (1) to the extrusion die head (5).
5. A blow molding machine with nozzle protection effect according to claim 1, characterized in that: The model mechanism (7) is composed of a mold a (701), a mold b (702), a hydraulic push rod a (703), a hydraulic push rod b (704) and a slider (705). The hydraulic push rod a (703) and the hydraulic push rod b (704) are respectively threadedly connected to the top of the sliders (705) on the left and right sides, and the mold a (701) and the mold b (702) are respectively arranged at the driving ends of the hydraulic push rod a (703) and the hydraulic push rod b (704). At the same time, the sliders (705) on the left and right sides are slidably connected to the track of the telescopic slide rail (6).
6. A blow molding machine with nozzle protection effect according to claim 1, characterized in that: The protection mechanism (12) is composed of a fastening screw sleeve (1201), a cross bracket (1202) and a shock-absorbing spring rod (1203), wherein the fastening screw sleeve (1201) is screwed to the outer wall thread of the nozzle (11), and the thread arranged inside the fastening screw sleeve (1201) is opposite to the thread between the nozzle (11) and the air outlet pipe (10), and a cross bracket (1202) is arranged on the annular outer wall of the fastening screw sleeve (1201), and a shock-absorbing spring rod (1203) is also arranged at the bottom end of the cross bracket (1202).