Multi-row continuous injection molding equipment and bottle blowing production line

By designing multi-row continuous injection molding equipment and a temperature-adjusted mold ejection device, the problem that existing equipment cannot realize multi-row continuous injection molding and the bottle preform preheating time is too long has been solved, efficient plastic bottle production has been achieved, and production capacity has been increased.

CN222372271UActive Publication Date: 2025-01-21HUNAN CHINASUN PHARMA MASCH CO LTD
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Patent Information

Application Number
CN202420285550.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-07
Publication Date
2025-01-21
Estimated Expiration
2034-02-07

AI Technical Summary

Technical Problem

The existing plastic bottle production equipment cannot achieve multiple rows of continuous injection molding, which makes it difficult to improve production capacity, and the bottle preheating time is too long, affecting production capacity.

Method used

A multi-row continuous injection molding equipment is designed. The plasticizing injection device is connected to the multi-row preform preparation device through a diverter device to achieve continuous injection molding. The transfer route of the preforms is optimized through a temperature-adjusting mold ejection device to reduce heat loss.

Benefits of technology

Continuous production has been achieved, production efficiency has been improved, the exposure time of bottle preforms to the air has been shortened, and the process of heat supplementation has been reduced, thus increasing production capacity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses multi-row continuous injection molding equipment and a bottle blowing production line, and belongs to the technical field of plastic bottle production, the multi-row continuous injection molding equipment comprises a plasticizing injection device, a multi-row bottle preform preparation device is connected behind the plasticizing injection device, the multi-row continuous injection molding equipment further comprises a shunting device and a bottle blowing device, the shunting device comprises a communicating header pipe connected with an outlet of the plasticizing injection device, a plurality of communicating branch pipes connected with the communicating header pipe, and a switch assembly used for conducting the communicating branch pipes, and the communicating branch pipes are connected with the multiple rows of bottle preform preparation devices in a one-to-one correspondence manner; and the temperature-adjusting and mold-stripping device is connected with the bottle preform preparation device, and the temperature-adjusting and mold-stripping device is used for carrying out heating and heat preservation on the bottle preform prepared by the bottle preform preparation device and driving the bottle preform to be transferred to the next working procedure in the one-dimensional linear direction. Continuous injection molding can be achieved, and rapid transfer of bottle blanks can be completed.
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Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle production, in particular to a multi-row continuous injection molding device. In addition, the utility model also relates to a bottle blowing production line comprising the multi-row continuous injection molding device. Background Art

[0002] Plastic bottles are a common container with a very large demand and are used in a wide range of applications, such as food and beverages, medical containers, medicine bottles, seasoning containers, etc.

[0003] There are two production processes for plastic bottles: a two-step process (commonly used in the early stages of the industry) and a one-step process. In recent years, the one-step process has been increasingly recognized by the market. For example, the Chinese patent application number 202210194038.1 discloses a linear injection-blow-fill-seal integrated plastic bottle packaging device with high integration and high energy-saving effects. However, in actual applications, the above equipment has been found to have problems with further increasing production capacity. The main reasons include:

[0004] 1. It is not possible to carry out multi-row continuous injection molding, and there is a long working time gap, which leads to the inability to connect the subsequent processes for continuous and efficient production of multiple batches;

[0005] 2. It takes too much time to preheat the preforms, because the transfer route between the preforms and the pre-blowing process is very long (after the preforms are taken out by the robot, they need to be moved, lowered, translated and other multi-dimensional movements before they can be transferred to the next process). This results in a long exposure time for the preforms and a lot of heat loss, so it takes a long time to replenish the heat. This link consumes too much time, which seriously affects production capacity. Utility Model Content

[0006] The utility model provides a multi-row continuous injection molding device to solve the technical problems that the existing device cannot continuously inject molding and the preheating time of the bottle embryo is too long.

[0007] At the same time, the utility model also provides a bottle blowing production line including the above-mentioned multi-row continuous injection molding equipment.

[0008] According to one aspect of the utility model, a multi-row continuous injection molding device is provided, comprising a plasticizing injection device, wherein the plasticizing injection device is connected to a multi-row preform preparation device, and the multi-row continuous injection molding device further comprises:

[0009] A flow dividing device, the flow dividing device comprising a connecting main pipe connected to the outlet of the plasticizing injection device, a plurality of connecting branch pipes respectively connected to the connecting main pipe, and a switch assembly for conducting each connecting branch pipe, wherein the plurality of connecting branch pipes are connected to the plurality of rows of preform preparation devices in a one-to-one correspondence;

[0010] A temperature-adjusting demoulding device is connected to the preform preparation device, and is used to heat and keep the preforms prepared by the preform preparation device warm and drive the preforms to be transported to the next process along a one-dimensional straight line.

[0011] Furthermore, the temperature regulating demolding device includes a temperature regulating mechanism and a transfer mechanism connected to the temperature regulating mechanism and used to drive the temperature regulating mechanism to move; the temperature regulating mechanism includes a first temperature regulating frame and a second temperature regulating frame arranged relatively to each other, and a driving component used to drive the first temperature regulating frame and the second temperature regulating frame to move closer to or away from each other, and the first temperature regulating frame and the second temperature regulating frame are used to clamp and fix the bottle blank to each other.

[0012] Furthermore, a plurality of limiting grooves are spaced apart on the opposite side walls of the first temperature regulating frame and the second temperature regulating frame, and the limiting grooves on the first temperature regulating frame and the second temperature regulating frame are combined in a one-to-one correspondence to form a plurality of limiting cavities, and the limiting cavities are adapted to the bottle preform and are used to clamp and fix the bottle preform.

[0013] Furthermore, the temperature control mechanism is provided with multiple rows corresponding to the preform preparation device, and the multiple rows of temperature control mechanisms are arranged in pairs, the two first temperature control frames in a single pair of temperature control mechanisms are connected by a first linkage component, and the two second temperature control frames in the single pair of temperature control mechanisms are connected by a second linkage component, the first linkage component is used to drive the corresponding two first temperature control frames to move synchronously, and the second linkage component is used to drive the corresponding two second temperature control frames to move synchronously.

[0014] Furthermore, the drive assembly includes two linear drive assemblies arranged on opposite sides of the single pair of temperature control mechanisms, one of the linear drive assemblies is connected to a first temperature control frame located on the outside of the single pair of temperature control mechanisms, and the other linear drive assembly is connected to a second temperature control frame located on the outside of the single pair of temperature control mechanisms.

[0015] Furthermore, the first linkage assembly includes a first guide link and a second guide link of the second linkage assembly, the first guide link is used to pass through the second temperature control frame of the first row of temperature control mechanisms and connect the two first temperature control frames of the temperature control mechanisms in the first row with the second row, and the second guide link is used to pass through the first temperature control frame of the second row of temperature control mechanisms and connect the two second temperature control frames of the temperature control mechanisms in the first row with the second row.

[0016] Furthermore, the temperature control mechanism is provided with multiple rows corresponding to the preform preparation device, and the multiple rows of temperature control mechanisms are arranged in pairs, the driving component is connected to one of the first temperature control frames in the single pair of temperature control mechanisms, and the two first temperature control frames in the single pair of temperature control mechanisms are connected by a first linkage component, and the first linkage component is used to drive the corresponding two first temperature control frames to move synchronously, and the second temperature control frame is fixedly arranged on the transfer mechanism.

[0017] Furthermore, a thermal insulation pad and a heating component connected to the thermal insulation pad are arranged in the first temperature regulating frame and / or the second temperature regulating frame.

[0018] Furthermore, the temperature-adjusting demoulding device also includes a guide rail for guiding the linear motion of the temperature-adjusting mechanism.

[0019] According to another aspect of the utility model, a bottle blowing production line is also provided, which includes the above-mentioned multi-row continuous injection molding equipment, and the bottle blowing production line also includes a bottle blowing device, a filling device, a sealing device and a bottle embryo transmission device connected in sequence, and the bottle blowing device is connected to the temperature regulating demolding device.

[0020] The utility model has the following beneficial effects:

[0021] The utility model discloses a multi-row continuous injection molding device that connects a plurality of rows of bottle embryo preparation devices with a plasticizing injection device through a flow dividing device, wherein a connecting main pipe of the flow dividing device is connected to the plasticizing injection device, and a connecting branch pipe divides the connecting main pipe and connects with each row of bottle embryo preparation devices, and at the same time, each connecting branch pipe is opened or closed through a switch component, so that the plasticizing injection device sequentially performs injection molding on each row of bottle embryo preparation devices, and injection molding can be performed in time after each row of bottle embryo preparation devices completes embryo removal, so that continuous injection molding is realized, excessively long idle time is avoided, more closely continuous work is realized, and production efficiency is further improved.

[0022] In addition, the temperature-controlled ejection device can realize the transfer process of the preform in a completely linear motion, avoiding the preform being exposed to the air for too long and losing too much heat due to deviation or turning routes, greatly improving the efficiency of transfer, avoiding additional heat replenishment processes, and further improving production capacity; at the same time, the temperature-controlled mechanism of the temperature-controlled ejection device can also heat the preform during the linear transfer of the preform, ensuring that the temperature of the preform is within an appropriate range, which is beneficial to the quality of subsequent bottle blowing.

[0023] The bottle blowing production line of the utility model also has the above-mentioned beneficial effects.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described above at the same time. In addition to the purposes, features and advantages described above, the present invention also has other purposes, features and advantages. The present invention will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0026] Figure 1 This is a schematic diagram of the overall structure of a bottle blowing production line according to a preferred embodiment of the utility model;

[0027] Figure 2 It is a top view schematic diagram of a bottle blowing production line according to a preferred embodiment of the utility model.

[0028] Figure 3 It is a schematic diagram of the installation of the diversion device of the preferred embodiment of the utility model.

[0029] Figure 4 It is a structural schematic diagram of a temperature regulating demoulding device according to a preferred embodiment of the utility model.

[0030] Figure 5 It is a structural schematic diagram of the diversion device of the preferred embodiment of the utility model.

[0031] Figure 6 It is a structural schematic diagram of the temperature regulating mechanism of the preferred embodiment of the utility model.

[0032] Legend: 100, plasticizing and injection device; 200, preform preparation device; 300, transfer station; 400, temperature-adjusting and demoulding device; 401, servo motor; 402, lead screw; 403, mounting plate; 404, guide rail; 405, temperature-adjusting mechanism; 406, cylinder; 407, heating tube; 408, first temperature-adjusting frame; 409, second temperature-adjusting frame; 410, tee; 411, switch assembly; 412, first rubber cylinder; 413, second rubber cylinder; 414, push rod; 415, linkage assembly; 500, pre-blowing device; 600, bottle blowing device; 700, filling device; 800, sealing device; 900, preform transmission device. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0034] According to one aspect of the utility model, a multi-row continuous injection molding device is provided, comprising a plasticizing injection device 100, wherein the plasticizing injection device 100 is connected to a multi-row preform preparation device 200, and the multi-row continuous injection molding device further comprises:

[0035] A flow dividing device, the flow dividing device comprising a connecting main pipe connected to the outlet of the plasticizing injection device 100, a plurality of connecting branch pipes respectively connected to the connecting main pipe, and a switch assembly 411 for connecting each connecting branch pipe, wherein the plurality of connecting branch pipes are connected to the plurality of rows of preform preparation devices 200 in a one-to-one correspondence;

[0036] The temperature-adjusting demoulding device 400 is connected to the preform preparation device 200 and is used to heat and keep the preforms prepared by the preform preparation device 200 and drive the preforms to be transported to the next process along a one-dimensional straight line.

[0037] It can be understood that multiple rows of preform preparation devices 200 are connected to the plasticizing injection device 100 through the diverter device, wherein the connecting main pipe of the diverter device is connected to the plasticizing injection device 100, and the connecting branch pipes divert the connecting main pipe and connect with each row of preform preparation devices 200. At the same time, each connecting branch pipe is opened or closed by the switch component 411, so that the plasticizing injection device 100 can perform injection molding to each row of preform preparation devices 200 in turn, and after each row of preform preparation devices 200 completes the embryo removal, injection molding can be carried out in time, so as to achieve continuous injection molding and avoid excessive time gaps. In addition, the temperature-adjusting demolding device 400 realizes that the preform delivery and transportation process is completely carried out in a straight line, and the optimal horizontal straight line motion is selected to avoid the multi-dimensional motion route of deviation or turning, which causes the preform to be exposed to the air for too long and lose too much heat, thereby greatly improving the efficiency of transportation and avoiding additional heat supplementation processes, thereby further improving production capacity; at the same time, the temperature-adjusting mechanism 405 of the temperature-adjusting demolding device 400 can also heat the preform during the straight-line transportation of the preform, ensuring that the temperature of the preform is within an appropriate range, which is beneficial to the quality of subsequent bottle blowing.

[0038] It should be noted that the utility model can effectively shorten the exposure time of the preform from the time of preform discharge to pre-blowing or bottle blowing. The preform is output in the same direction as the injection molding and is transferred in a straight line, so that the preform is not deviated left or right or up or down during transportation. This can minimize the transmission time. The shorter the time the preform is exposed to the air, the more conducive it is to bottle blowing. In this preferred embodiment, the switch assembly 411 includes a rotary valve or a solenoid valve, which can be used to open each connecting branch to achieve the function of alternating injection. In addition, it should be noted that the preform preparation device 200 includes a preform mold, and the preform mold and the plasticizing injection device 100 are both prior art and will not be described in detail here.

[0039] The split flow device can achieve more closely continuous work and further improve production efficiency. Take the two-row preform preparation device 200 as an example, please refer to Figure 5, a plasticizing screw of the plasticizing injection device 100 is continuously plasticized and connected to the plasticizing injection device 100 by a tee 410. The tee 410 has two connecting branches, which are respectively connected to the first injection tube and the second injection tube. The first injection tube and the second injection tube are respectively connected to a row of bottle embryo preparation devices 200. The switch component 411 controls the opening and closing of the two connecting branches: assuming that the connecting branch of the first injection tube is opened first, the plasticized material is first injected into the first injection tube. When the first injection tube is full, the switch component 411 closes the connecting branch of the first injection tube and opens the connecting branch of the second injection tube. At this time, the first injection tube can be injected (the push rod 414 pushes to inject) and maintain pressure. When the pressure maintenance is completed, the second injection tube is also filled. The switch component 411 closes the connecting branch of the second injection tube and opens the connecting branch of the first injection tube. The first injection tube starts to feed the material, and the second injection tube can start to inject, and so on alternately. Cooperating with the temperature-adjusting demoulding device 400 and the robot arm to realize embryo discharging and embryo taking to the next process, staggered work can be realized, that is, the time for injection molding and embryo discharging and embryo taking is equal, truly realizing seamless continuous production.

[0040] Of course, the present invention does not exclude the solution of directly connecting the plasticizing injection device 100 with the preform preparation device 200 without using a diverter device. In this case, continuous injection molding of each row of preform preparation devices 200 can be achieved by controlling the opening of different plasticizing injection devices 100.

[0041] Preferably, please refer to Figure 1 , 3 As shown in Figures 4 and 5, the temperature regulating demoulding device 400 includes a temperature regulating mechanism 405 and a transfer mechanism connected to the temperature regulating mechanism 405 and used to drive the temperature regulating mechanism 405 to move; the temperature regulating mechanism 405 includes a first temperature regulating frame 408 and a second temperature regulating frame 409 which are arranged opposite to each other, and a driving component which is used to drive the first temperature regulating frame 408 and the second temperature regulating frame 409 to move closer to or away from each other, and the first temperature regulating frame 408 and the second temperature regulating frame 409 are used to clamp and fix the preform to each other.

[0042] It is understandable that the temperature regulating mechanism 405 can be driven by the transfer mechanism to perform linear motion, and the first temperature regulating frame 408 and the second temperature regulating frame 409 of the temperature regulating mechanism 405 can be relatively displaced to achieve a state similar to opening and closing, and can clamp or release the bottle preform, so that the bottle preform is exposed in the open state, which is convenient for the bottle preform to be quickly taken out by the manipulator and transferred to the next process in a straight line, without the need to first clamp the bottle preform to rise, then offset and translate, and finally move down to place the bottle preform when taking the bottle, so that a large amount of displacement distance can be reduced and the exposure time of the bottle preform can be shortened. It should be noted that the function of the first temperature regulating frame 408 and the second temperature regulating frame 409 being openable is to facilitate the linear transportation of the bottle preform in one-dimensional direction, realize the transportation of the optimal route and reduce the exposure time. In this preferred embodiment, after the mold of the bottle preform preparation device 200 is opened, the bottle preform product directly falls into the temperature regulating mechanism 405, and then the linear motion can be performed to complete the transportation.

[0043] Specifically, a plurality of limiting grooves are spaced apart on the opposite side walls of the first temperature regulating frame 408 and the second temperature regulating frame 409. The limiting grooves on the first temperature regulating frame 408 and the second temperature regulating frame 409 correspond to each other and are combined to form a plurality of limiting cavities, which are adapted to the preform and used to clamp and fix the preform.

[0044] It can be understood that the first temperature adjustment frame 408 and the second temperature adjustment frame 409 are provided with corresponding limiting grooves, and the limiting grooves on both sides are combined to form a limiting cavity to carry and limit the preform, and the first temperature adjustment frame 408 and the second temperature adjustment frame 409 can be relatively displaced to achieve a similar opening effect so that the preform is no longer limited to facilitate the rapid removal and transfer of the preform. Due to the linear motion mode and the openable function of the temperature adjustment mechanism 405, it is ensured that the preform does not need to go through the steps of taking the preform up, moving horizontally, and then moving downward when the preform is transported linearly, and the vertical displacement route is cancelled. Only the fastest translation movement is required to complete the transportation, which effectively shortens the transportation distance and transportation time.

[0045] Preferably, please refer to Figure 2 and Figure 3 As shown, the temperature control mechanism 405 is provided with multiple rows corresponding to the preform preparation device 200, and the multiple rows of temperature control mechanisms 405 are arranged in pairs, and the two first temperature control frames 408 in a single pair of temperature control mechanisms 405 are connected by a first linkage component, and the two second temperature control frames 409 in the single pair of temperature control mechanisms 405 are connected by a second linkage component. The first linkage component is used to drive the corresponding two first temperature control frames 408 to move synchronously, and the second linkage component is used to drive the corresponding two second temperature control frames 409 to move synchronously.

[0046] Optionally, the drive assembly includes two linear drive assemblies arranged on opposite sides of the single pair of temperature control mechanisms 405, one of the linear drive assemblies is connected to a first temperature control frame 408 located on the outside of the single pair of temperature control mechanisms 405, and the other linear drive assembly is connected to a second temperature control frame 409 located on the outside of the single pair of temperature control mechanisms 405.

[0047] It can be understood that the temperature regulating mechanisms 405 arranged in pairs can simultaneously transport the preforms discharged from the two rows of preform preparation devices 200, meeting the needs of batch product transportation. In the preferred embodiment, the linear drive assembly includes a cylinder 406, and the two cylinders 406 can respectively open one of the temperature regulating mechanisms 405. Of course, the utility model does not exclude the following schemes, such as two cylinders 406 are arranged in the middle of the two rows of temperature regulating mechanisms 405, thereby respectively driving the second temperature regulating frame 409 of the first row of temperature regulating mechanisms 405 and the first temperature regulating frame 408 of the second row of temperature regulating mechanisms 405 to move; or the scheme of arranging a double-headed cylinder in the middle of the two rows of temperature regulating mechanisms 405 can also realize the opening function of the two rows of temperature regulating mechanisms 405. This is the case where the temperature regulating mechanisms 405 are arranged in pairs. Of course, the same method can also simultaneously connect three rows or more of temperature regulating mechanisms through the first linkage assembly and the second linkage assembly, and similarly drive each temperature regulating mechanism 405 to be opened through two linear drive assemblies.

[0048] Optionally, the first linkage assembly includes a first guide link and a second guide link of the second linkage assembly, the first guide link is used to pass through the second temperature control frame 409 of the first row of temperature control mechanisms 405 and connect the two first temperature control frames 408 of the first row and the second row of temperature control mechanisms 405, and the second guide link is used to pass through the first temperature control frame 408 of the second row of temperature control mechanisms 405 and connect the two second temperature control frames 409 of the first row and the second row of temperature control mechanisms 405.

[0049] It can be understood that the first guide link and the second guide link not only play a connecting role, but also a guiding function, ensuring that the driving component drives the first temperature adjustment frame 408 and the second temperature adjustment frame 409 to perform a more stable translational movement, and ensuring that the relative position limit grooves on the first temperature adjustment frame 408 and the second temperature adjustment frame 409 do not deviate significantly, ensuring the accuracy of the position of the limit grooves during the movement, and being able to smoothly combine to form a limit cavity to firmly limit the bottle embryo.

[0050] In another embodiment, the temperature control mechanism 405 is provided with multiple rows corresponding to the preform preparation device 200, and the multiple rows of temperature control mechanisms 405 are arranged in pairs, and the driving component is connected to one of the first temperature control frames 408 in the single pair of temperature control mechanisms 405, and the two first temperature control frames 408 in the single pair of temperature control mechanisms 405 are connected by a first linkage component, and the first linkage component is used to drive the corresponding two first temperature control frames 408 to move synchronously, and the second temperature control frame 409 is fixedly arranged on the transfer mechanism.

[0051] It can be understood that the first temperature regulating frames 408 between the temperature regulating mechanisms 405 arranged in pairs are connected by a first linkage assembly, and the first linkage assembly includes a first guide rod. By driving one of the first temperature regulating frames 408 to move through the driving assembly, the temperature regulating mechanisms 405 in two rows can be synchronously driven to clamp or release the preforms, thereby achieving more efficient transportation.

[0052] It should be noted that the arranged temperature control mechanisms 405 are not limited to being arranged in pairs. The temperature control mechanisms 405 arranged in multiple rows can meet the transportation requirements of bottle preforms with different numbers of arrangements under different working conditions. In this case, it is only necessary to connect the first temperature control frames 408 or the second temperature control frames 409 of the temperature control mechanisms 405 in each row to each other through the linkage assembly 415 (the linkage assembly 415 is, for example, a connecting straight rod), and the cylinder 406 of the driving assembly can drive one of the first temperature control frames 408 or the second temperature control frames 409 to realize the synchronous opening of the temperature control mechanisms 405 in each row.

[0053] Optionally, the driving assembly includes a baffle plate arranged at the bottom or top of the first temperature regulating frame 408 and / or the second temperature regulating frame 409, a baffle rod arranged in the linear motion direction of the first temperature regulating frame 408 and / or the second temperature regulating frame 409, and a spring connecting the first temperature regulating frame 408 and the second temperature regulating frame 409, the baffle rod is arranged correspondingly to the baffle plate, the baffle plate is arranged obliquely or one side of the baffle plate is an inclined surface, when the first temperature regulating frame 408 and the second temperature regulating frame 409 move along a straight line, when the baffle plate touches the baffle rod, the inclined baffle plate or the inclined surface of the baffle plate pushes the first temperature regulating frame 408 and / or the second temperature regulating frame 409 away from each other during the sliding contact with the baffle rod, so that the preform is exposed from the limiting cavity. Since the temperature regulating mechanism 405 reciprocates along a straight line, when the baffle plate is separated from the baffle rod, the first temperature regulating frame 408 and the second temperature regulating frame 409 can be tightened by the spring to form a heat preservation cavity. In this way, the first temperature regulating frame 408 and the second temperature regulating frame 409 can be opened without using active driving devices such as motors or linear cylinders, which is beneficial to saving energy and reducing costs.

[0054] Preferably, please refer to Figure 6 As shown, a thermal insulation pad and a heating component connected to the thermal insulation pad are arranged in the first temperature adjustment frame 408 and / or the second temperature adjustment frame 409.

[0055] It is understandable that the heating component can maintain the overall temperature of the first temperature regulating frame 408 and the second temperature regulating frame 409, so that the first temperature regulating frame 408 and the second temperature regulating frame 409 will not quickly conduct heat transfer to the temperature of the preform when clamping and limiting the preform, causing the preform to cool down quickly and affecting the quality of subsequent bottle blowing. It should be noted that the heating component can use a heating tube 407 or a heating wire, and the heating tube 407 or the heating wire can be arranged between the heat insulation pad and the inner wall of the first temperature regulating frame 408 and / or the second temperature regulating frame 409 to ensure that the temperature of the inner wall of the first temperature regulating frame 408 and / or the second temperature regulating frame 409 on the side in contact with the preform is continuously within an appropriate range.

[0056] Preferably, please refer to Figure 4 As shown, the temperature regulating demoulding device 400 further includes a guide rail 404 for guiding the linear motion of the temperature regulating mechanism 405 .

[0057] It should be noted that the transfer mechanism for driving the temperature adjustment mechanism 405 to move includes a screw assembly, which includes a servo motor 401, a screw 402 and a mounting plate 403. The temperature adjustment mechanism 405 is slidably mounted on the screw 402 through the mounting plate 403, and the guide rail 404 guides the mounting plate 403. After the preform is injection molded, the servo motor 401 drives the temperature adjustment mechanism 405 along the guide rail 404 to enter the preform preparation device 200 through the screw 402, and the cylinder 406 drives the temperature adjustment mechanism 405 to close and clamp the preform, and then the temperature adjustment mechanism 405 can be moved out to transfer the preform.

[0058] According to another aspect of the utility model, a bottle blowing production line is also provided, which includes the above-mentioned multi-row continuous injection molding equipment, and the bottle blowing production line also includes a bottle blowing device 600, a filling device 700, a sealing device 800 and a bottle embryo transmission device 900 connected in sequence, and the bottle blowing device 600 is connected to the temperature adjustment mold device 400. The above devices are supported and installed by a frame, and the frame includes a protective cover to protect each device (wherein the plasticizing injection device 100 can be arranged outside the protective cover as appropriate) to form a safe production environment that is not polluted by the outside world. It can be understood that the bottle blowing production line of the utility model is in the form of an injection, blowing, filling and sealing integrated machine, which is a more integrated device, and each device is arranged in a linear manner. Compared with the one-step bottle making method currently on the market, which uses a disc structure and is difficult to increase the number of cavities to increase the output, the utility model adopts a linear layout method that is not limited to this. On the one hand, the number of cavities can be increased in the linear direction, and on the other hand, the number of rows can be increased by multiples.

[0059] Please note that, please refer to Figure 2If the handover time is long, a handover station 300 can be set between the preform preparation device 200 and the bottle blowing device 600 to perform additional heat treatment on the preform; a pre-blowing device 500 can be set before the bottle blowing device 600. In addition, the bottle blowing device 600 and the temperature-adjusting and demolding device 400 are on the same plane in the longitudinal direction, so that the temperature-adjusting and demolding device 400 can transfer the preform to the bottle blowing device 600 along a one-dimensional straight line, greatly shortening the traditional multi-dimensional motion transfer route, and completing the transfer work quickly and efficiently.

[0060] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0061] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection of the utility model.

Claims

1. A multi-row continuous injection molding device, comprising a plasticizing injection device (100), wherein the plasticizing injection device (100) is connected to a multi-row preform preparation device (200), characterized in that: The multi-row continuous injection molding equipment also includes: A flow dividing device, the flow dividing device comprising a connecting main pipe connected to the outlet of the plasticizing injection device (100), a plurality of connecting branch pipes respectively connected to the connecting main pipe, and a switch assembly (411) for conducting each connecting branch pipe, the plurality of connecting branch pipes being connected to the plurality of rows of preform preparation devices (200) in a one-to-one correspondence; A temperature-adjusting demoulding device (400) is connected to the preform preparation device (200), and is used to heat and keep the preform prepared by the preform preparation device (200) warm and drive the preform to be transported to the next process along a one-dimensional straight line.

2. A multi-row continuous injection molding device according to claim 1, characterized in that: The temperature regulating demoulding device (400) comprises a temperature regulating mechanism (405) and a transfer mechanism connected to the temperature regulating mechanism (405) and used to drive the temperature regulating mechanism (405) to move; the temperature regulating mechanism (405) comprises a first temperature regulating frame (408) and a second temperature regulating frame (409) arranged opposite to each other, and a driving component used to drive the first temperature regulating frame (408) and the second temperature regulating frame (409) to move closer to each other or away from each other, and the first temperature regulating frame (408) and the second temperature regulating frame (409) are used to clamp and fix the preform.

3. A multi-row continuous injection molding device according to claim 2, characterized in that: A plurality of limiting grooves are spaced apart on opposite side walls of the first temperature adjustment frame (408) and the second temperature adjustment frame (409); the limiting grooves on the first temperature adjustment frame (408) and the second temperature adjustment frame (409) are combined in a one-to-one correspondence to form a plurality of limiting cavities; the limiting cavities are adapted to the bottle preform and are used to clamp and fix the bottle preform.

4. A multi-row continuous injection molding device according to claim 3, characterized in that: The temperature control mechanism (405) is provided with multiple rows corresponding to the preform preparation device (200), and the multiple rows of temperature control mechanisms (405) are arranged in pairs, and the two first temperature control frames (408) in a single pair of temperature control mechanisms (405) are connected by a first linkage component, and the two second temperature control frames (409) in the single pair of temperature control mechanisms (405) are connected by a second linkage component, and the first linkage component is used to drive the corresponding two first temperature control frames (408) to move synchronously, and the second linkage component is used to drive the corresponding two second temperature control frames (409) to move synchronously.

5. The multi-row continuous injection molding equipment according to claim 4, characterized in that: The drive assembly comprises two linear drive assemblies arranged on opposite sides of the single pair of temperature control mechanisms (405), wherein one linear drive assembly is connected to a first temperature control frame (408) located on the outside of the single pair of temperature control mechanisms (405), and the other linear drive assembly is connected to a second temperature control frame (409) located on the outside of the single pair of temperature control mechanisms (405).

6. The multi-row continuous injection molding equipment according to claim 4, characterized in that: The first linkage assembly comprises a first guide link and a second guide link of the second linkage assembly. The first guide link is used to penetrate the second temperature regulating frame (409) of the first row of temperature regulating mechanisms (405) and connect the two first temperature regulating frames (408) of the first row and the second row of temperature regulating mechanisms (405). The second guide link is used to penetrate the first temperature regulating frame (408) of the second row of temperature regulating mechanisms (405) and connect the two second temperature regulating frames (409) of the first row and the second row of temperature regulating mechanisms (405).

7. The multi-row continuous injection molding equipment according to claim 4, characterized in that: The driving assembly is connected to one of the first temperature adjustment frames (408) in the single pair of temperature adjustment mechanisms (405), and the second temperature adjustment frame (409) is fixedly arranged on the transfer mechanism.

8. The multi-row continuous injection molding equipment according to claim 2, characterized in that: A thermal insulation pad and a heating component connected to the thermal insulation pad are arranged in the first temperature adjustment frame (408) and / or the second temperature adjustment frame (409).

9. The multi-row continuous injection molding equipment according to claim 2, characterized in that: The temperature-adjusting demoulding device (400) further comprises a guide rail (404) for guiding the linear motion of the temperature-adjusting mechanism (405).

10. A bottle blowing production line, characterized in that: It comprises a multi-row continuous injection molding device as described in any one of claims 1 to 9, and a bottle blowing device (600), a filling device (700), a sealing device (800) and a preform transmission device (900) connected in sequence, wherein the bottle blowing device (600) is connected to the temperature regulating demoulding device (400).

Citation Information

Patent Citations

  • Linear injection-blowing-filling-sealing integrated plastic bottle packaging equipment

    CN114619651A