Method and apparatus for producing a silica gel packing bag

Abstract

The application discloses a production method and a production device for silica gel packaging bags. The mold assembly with silica gel raw material pieces on the top surface is placed on the movable mold with silica gel raw material pieces on the top surface through the descending reset of the lifting mechanism. The mold assembly and the movable mold placed in the processing area as a whole can be closed through the lifting movement of the guide rail platform, so that the bottom of the fixed mold and the top of the movable mold are closed. The silica gel raw material pieces can be formed into a molded bag through remelting by heating in the forming space formed by the closing of the fixed mold and the movable mold. The molded bag can be separated from the fixed mold through the descending reset of the guide rail platform to complete the demolding work with the fixed mold. After the mold assembly and the movable mold are driven by the moving table to return to the feeding and discharging area, the demolding work of the molded bag and the movable mold is completed through the lifting of the mold assembly driven by the lifting mechanism. Finally, the demolding work of the molded bag attached to the mold assembly and the mold assembly is completed. The production efficiency of the product is effectively improved, and the production quality is ensured.

Description

Technical Field

[0001] This invention relates to the field of mold manufacturing technology, and in particular to a method and apparatus for producing silicone packaging bags. Background Technology

[0002] In daily life, people often store food in sealed bags to prevent cross-contamination of odors within the refrigerator and to prevent direct contact between food and moisture or other microorganisms in the external environment, thus slowing down the rate of spoilage. Sealed bags can also be used to hold food or other items, making them convenient to carry when going out. There are two types of sealed bags: plastic and silicone. Silicone sealed bags have the advantage of being reusable compared to plastic sealed bags, and silicone material has higher thermal and chemical stability than plastic, making it safer.

[0003] In existing silicone bag production methods, a first and second bag surface are formed using silicone raw materials and molds. Finally, the first and second bag surfaces are bonded together by heating and pressing at the edges or by lamination to create an open-ended bag. While this method requires relatively little equipment and technical expertise, it incurs high labor costs, has a long production time, and low production efficiency. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a method for producing silicone packaging bags. Production is based on a mold structure installed on processing equipment. The processing equipment includes a machine base and a guide rail platform located below the machine base. Both the machine base and the guide rail platform move up and down via lifting rods connected to both sides. The bottom of the machine base is the processing area, and the other end of the guide rail platform extends to the loading / unloading area. The mold structure includes a moving mold, a mold assembly placed on top of the moving mold, and a fixed mold fixed within the machine base. The guide rail platform is equipped with a moving stage capable of driving the moving mold and mold assembly back and forth between the processing area and the loading / unloading area. Lifting mechanisms are located on both sides of the guide rail platform in the loading / unloading area, capable of separating or connecting the mold assembly to the top of the moving mold. The method specifically includes the following steps:

[0005] S1, after placing the silicone raw material sheet on the mold assembly and the moving mold, control the lifting mechanism to descend and drive the mold assembly to rest on the top of the moving mold to complete the covering of the silicone raw material sheet on the moving mold. After the lifting mechanism descends to the first low position, control the moving stage to drive the mold assembly and the moving mold as a whole to move into the processing area.

[0006] S2, after the moving table arrives in the processing area, the control guide platform is raised to the set high position and drives the moving table, mold assembly and moving mold as a whole to move. After the guide platform is raised to the point where the fixed mold covers the top of the moving mold and completes the covering of the raw material sheet on the mold assembly, the control machine is lowered to the second low position and forms a closed space to accommodate the moving mold, mold assembly and fixed mold as a whole.

[0007] S3, after the machine is lowered to the second lowest position and abuts against the top of the moving platform, the machine is controlled to complete the forming operation of the moving mold and the fixed mold. After the forming time is reached, the machine is controlled to lift up and return to the first original position.

[0008] S4, after the machine is raised to the first original position, the control guide rail platform is lowered and reset, and the moving table, moving mold and mold assembly are moved as a whole to complete the separation of the formed bag wrapped on the mold assembly from the bottom of the fixed mold. After the guide rail platform reaches the second original position, the control move table is used to move the mold assembly and moving mold as a whole to the loading and unloading area.

[0009] S5, after the moving platform reaches the loading and unloading area, the lifting mechanism is controlled to lift and reset, and the mold assembly and the formed bag wrapped on the mold assembly are moved to complete the separation from the moving mold. After the lifting mechanism is lifted to the third original position, the unloading operation of the formed bag is performed and completed.

[0010] Preferably, step S3 specifically includes:

[0011] S31, when the machine is lowered to the second lowest position, the machine movement is stopped and the heating element inside the machine is started to heat the moving mold and the fixed mold as a whole. The heat can be transferred through the moving mold and the fixed mold to the molding space used to accommodate and reshape the silicone raw material sheet and complete the reshaping operation.

[0012] S32, when the hot pressure value in the molding space formed by the closing of the moving mold and the fixed mold reaches the set pressure, the machine platform is controlled to move up to the exhaust height. When the machine platform reaches the exhaust height, the machine platform is stopped and the exhaust holes on both sides of the moving mold are controlled to perform exhaust operation for a set time.

[0013] S33, when the hot pressure value in the molding space reaches the set pressure again, control the venting holes on both sides of the moving mold to perform venting operation for a set time.

[0014] Preferably, step S1 specifically includes:

[0015] S11, when the weighed silicone raw material sheet is placed on the mold assembly and the moving mold, the lifting mechanism is controlled to descend and drive the mold assembly to rest on the top of the moving mold. When the bottom of the mold assembly covers the silicone raw material sheet on the moving mold, the top of the lifting mechanism separates from the bottom of the mold assembly.

[0016] S12, when the reset sensor of the lifting mechanism detects that the lifting mechanism has descended to the first low position, the movement of the lifting mechanism is stopped, and the retraction movement of the moving cylinder placed at the processing area end of the guide rail platform is controlled to drive the moving table to move towards the processing area.

[0017] Preferably, step S2 specifically includes:

[0018] S21, when the shrinkage sensor on the moving cylinder detects that the moving cylinder has shrunk to the correct position, the moving table moves the mold assembly and the moving mold as a whole into the processing area, and at the same time controls the guide rail platform to lift the moving table, the mold assembly and the moving mold as a whole to the set height.

[0019] S22, when the guide rail platform moves to the set high position, the top of the moving mold and the bottom of the fixed mold close to cover the silicone raw material sheet on the mold assembly inside the bottom of the fixed mold, and at the same time control the machine to descend to the second low position.

[0020] Preferably, step S4 specifically includes:

[0021] S41, when the machine is raised to the first set original position, the machine stops moving and the guide rail platform is controlled to drive the moving table, mold assembly and moving mold to move as a whole. When the guide rail platform moves to the second original position according to the set height, the mold assembly and moving mold drive the molded bag attached to the mold assembly to separate from the fixed mold. At the same time, the moving cylinder is controlled to extend and drive the moving table to move.

[0022] S42, when the extension sensor on the moving cylinder detects that the moving cylinder has extended to a set distance, the moving cylinder stops extending, and at the same time the moving table drives the mold assembly and the moving mold as a whole to move into the loading and unloading area.

[0023] Preferably, step S5 specifically includes:

[0024] S51, when the moving cylinder extends to the position, the lifting mechanism is controlled to rise to the third original position. During the lifting process of the lifting mechanism, the top of the lifting mechanism abuts against the bottom of the mold assembly and drives the mold structure to rise and move. When the lifting sensor on the lifting mechanism detects that the lifting mechanism has reached the third original position, the lifting mechanism stops rising and moving. At the same time, the mold structure drives the forming bag to separate from the top of the moving mold and completes the demolding operation.

[0025] S52, after the molded bag has been demolded, the cleaning steps for the top surface of the moving mold, the outer wall of the mold assembly, and the bottom surface of the fixed mold are completed.

[0026] This invention also discloses a production apparatus for manufacturing silicone packaging bags, including processing equipment, a mold structure placed on the processing equipment, and a controller. The mold assembly includes a connecting beam and multiple molding parts arranged on both sides of the connecting beam. The top surface of the moving mold has a first groove penetrating both sides and multiple first recesses arranged on both sides of the first groove, each of the first recesses communicating with the sidewall of the first groove. The bottom surface of the fixed mold has a second groove penetrating both sides and multiple second recesses arranged on both sides of the second groove, each of the second recesses communicating with the sidewall of the second groove. The controller includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of any of the aforementioned silicone packaging bag production methods.

[0027] Preferably, the opening surface of the first groove can be connected and closed with the opening surface of the second groove to form a storage channel for accommodating the connecting beam. The two ends of the connecting beam are respectively placed outside the two ends of the storage channel. The opening surface of the first recess can be connected and closed with the opening surface of the second recess to form a molding space for accommodating the molded part. The outer wall of the molded part can be closed with the concave surface of the first recess and the concave surface of the second recess to form a molding cavity for accommodating and molding the silicone raw material sheet.

[0028] Preferably, the guide rail platform includes two guide rails with their ends respectively placed in the processing area and the loading / unloading area. The two guide rails are arranged in parallel and spaced apart to form an interval area for supporting both sides of the moving platform. The moving rod of the moving cylinder can drive the moving platform to move back and forth between the loading / unloading area and the processing area along the guide rail direction through the telescopic movement within the interval area. The lifting mechanism consists of two lifting cylinders placed at the loading / unloading area ends of the guide rails. The two lifting cylinders are respectively arranged on the outside of the two guide rails. The connecting beam has adapters at both ends that are adapted to the top of the telescopic rod of the lifting cylinder. The tops of the telescopic rods of the two lifting cylinders are respectively placed below the adapters.

[0029] Preferably, the detection sensors on the moving cylinder and the lifting cylinder are both magnetic switches, and the moving mold is equipped with a pressure sensor for detecting the pressure inside the cavity.

[0030] This invention discloses a method and apparatus for producing silicone packaging bags. A lifting mechanism separates the mold assembly from the top of the moving mold, facilitating the placement of silicone raw material sheets on the top surfaces of both the mold assembly and the moving mold. The lifting mechanism then lowers and resets the mold assembly, placing it back on the top of the fixed mold. At this point, the silicone raw material sheets on the top surface of the moving mold cover the bottom surface of the mold assembly. After the lifting mechanism lowers and resets, a moving platform moves the mold assembly and the moving mold as a whole into the processing area, positioning them directly below the machine tool to prepare for a closed connection with the fixed mold. Subsequently, a guide rail platform lifts and moves the moving platform, the moving mold, and the mold assembly as a whole, closing the top of the moving mold and the bottom of the fixed mold and forming a molding space to accommodate the mold assembly and raw material sheets. The raw material sheets can be heated and reshaped within this molding space, facilitating the formation of an integrated molded bag after molding. This reduces manual secondary processing steps, improving efficiency while ensuring product quality. Finally, the molded bag attached to the mold assembly can be demolded from the fixed mold by descending and resetting the guide rail platform, and demolded from the moving mold by lifting and moving the lifting mechanism. This reduces the number of manual operation steps required, which helps to improve production efficiency while improving safety during operation by reducing the number of times the operator comes into contact with the equipment.

[0031] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0033] Figure 1 This is a schematic diagram of the mold structure in the device disclosed in the embodiment of the present invention.

[0034] Figure 2 This is an exploded view of the mold structure disclosed in an embodiment of the present invention.

[0035] Figure 3 This is a schematic diagram of the structure of the moving mold disclosed in an embodiment of the present invention.

[0036] Figure 4 This is a schematic diagram of the fixed mold structure disclosed in an embodiment of the present invention.

[0037] Figure 5 This is a schematic diagram of the mold assembly disclosed in an embodiment of the present invention.

[0038] Figure 6This is a schematic diagram of the structure of the storage channel and forming space disclosed in an embodiment of the present invention.

[0039] Figure 7 This is a schematic diagram of the structure of the molded part disclosed in an embodiment of the present invention.

[0040] Figure 8 This is a schematic diagram of the structure of the connector disclosed in an embodiment of the present invention.

[0041] Figure 9 This is a schematic diagram of the structure of the first strip-shaped member and the first tooth-shaped member disclosed in an embodiment of the present invention.

[0042] Figure 10 This is a schematic diagram of the structure of the second strip-shaped member and the second tooth-shaped member disclosed in an embodiment of the present invention.

[0043] Figure 11 This is a schematic diagram of the structure of the spacer disclosed in an embodiment of the present invention.

[0044] Figure 12 This is a schematic diagram illustrating the steps of a method for producing silicone packaging bags according to an embodiment of the present invention.

[0045] Figure 13 This is a schematic diagram illustrating the specific steps of step S1 disclosed in an embodiment of the present invention.

[0046] Figure 14 This is a schematic diagram illustrating the specific steps of step S2 disclosed in an embodiment of the present invention.

[0047] Figure 15 This is a schematic diagram illustrating the specific steps of step S3 disclosed in an embodiment of the present invention.

[0048] Figure 16 This is a schematic diagram illustrating the specific steps of step S4 disclosed in an embodiment of the present invention.

[0049] Figure 17 This is a schematic diagram illustrating the specific steps of step S5 disclosed in an embodiment of the present invention. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0051] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in the specification and claims of this patent application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.

[0054] In this embodiment, as Figure 1-6As shown, a production apparatus for producing silicone packaging bags is disclosed, including processing equipment, a mold structure 1 placed on the processing equipment, and a controller. The controller can control the processing equipment and the mold structure to complete the production of silicone packaging bags. The processing equipment includes a machine base and a guide rail platform arranged below the machine base. Both the machine base and the guide rail platform can move up and down via lifting rods connected to both sides. The bottom of the machine base is the processing area, and the other end of the guide rail platform extends to the loading and unloading area. The mold structure 1 includes a moving mold 11, a mold assembly 13 placed on top of the moving mold 11, and a fixed mold 12 fixed in the machine base. The guide rail platform is provided with a moving stage that can drive the moving mold 11 and the mold assembly 13 back and forth between the processing area and the loading and unloading area along the guide rail platform. The arrangement of the guide rail platform allows the equipment to separate the loading and unloading area and the processing area. The separation between the upper and lower sections helps operators in the loading and unloading areas maintain a safe distance from the equipment in the processing area, improving operator safety. The guide rail platform also has a lifting function, enabling the connected moving mold and mold assembly after loading to the fixed mold. Compared to the machine tool lowering the fixed mold to connect with the moving mold and mold assembly, the guide rail platform has the advantage of lower weight, requiring less force to lift the guide rail platform than the machine tool, thus reducing the requirements for lifting equipment and lowering equipment costs. The guide rail platform can lift a movable platform placed in the processing area. The movable platform can lift the mold assembly and moving mold to close with the fixed mold. When the top of the moving mold and the bottom of the fixed mold are closed, a molding space 14 is formed within the moving and fixed molds to accommodate the mold assembly. The silicone raw material sheet is placed in the molding space along with the mold assembly. The molding space provides a space for the silicone raw material sheet to be reshaped into a molded bag. The separation and connection of the moving and fixed molds facilitates placing the silicone raw material sheet in the molding space and also facilitates the removal of the molded bag.

[0055] In this embodiment, the guide rail platform is provided with a lifting mechanism at one end of the loading and unloading area. The lifting mechanism can drive the mold assembly 13 to separate or connect with the top of the moving mold 11. Through the lifting action of the lifting mechanism, the top of the moving mold can contact the outside, which makes it convenient for the silicone raw material sheet to be placed on the top surface of the mold assembly and the top surface of the moving mold at the same time. And through the lowering action of the lifting mechanism, the mold assembly is placed on the moving mold, so that the silicone raw material sheet on the top surface of the moving mold wraps around the bottom surface of the mold assembly. By wrapping the top and bottom surfaces of the mold with two silicone raw material sheets, it is beneficial to place the raw material sheet more evenly on the mold assembly during the reshaping process.

[0056] In this embodiment, the mold assembly 13 includes a connecting beam 131 and a plurality of molding parts 132 arranged on both sides of the connecting beam 131. The top surface of the moving mold 11 is provided with a first groove 111 penetrating through both sides and a plurality of first recesses 112 arranged on both sides of the first groove 111. The first recesses 112 are all connected to the sidewalls of the first groove 111. The bottom surface of the fixed mold 12 is provided with a second groove 121 penetrating through both sides and a plurality of second recesses 122 arranged on both sides of the second groove 121. The second recesses 122 are all connected to the sidewalls of the second groove 121. The arrangement of multiple molding parts is beneficial to increasing the number of molded bags produced in a single operation of the equipment. The multiple molding parts are distributed on both sides of the connecting beam and arranged at intervals, which is beneficial to the molding parts being placed independently in the first and second recesses, preventing the silicone raw material sheets from flowing to each other in the molten state and ensuring the production quality of the molded bags. The first recess is set separately and independently on the moving mold. When the mold assembly is separated from the moving mold, it is beneficial to place the silicone raw material sheet in the concave surface of the first recess. When the mold assembly is placed on the top of the moving mold, the mold assembly can adjust and position itself by placing the bottom of the molded part in the corresponding first recess. This allows the raw material sheet in the first recess to cover the bottom of the molded part while also improving the accuracy of subsequent connection with the bottom of the fixed mold.

[0057] In this embodiment, the opening surface of the first groove 111 can connect and close with the opening surface of the second groove 121 to form a placement channel 113 for accommodating the connecting beam 131. The two ends of the connecting beam 131 are respectively placed outside the two ends of the placement channel 113. The placement channel allows the connecting beam to be placed inside the moving mold and the fixed mold, which is beneficial for placing the mold assembly between the moving mold and the fixed mold without restricting the closed connection between the top of the moving mold and the bottom of the fixed mold, thus increasing the tightness of the closed connection between the moving mold and the fixed mold. The opening surface of the first recess 112 can connect and close with the opening surface of the second recess 122 to form a molding space 114 for accommodating the molded part 132. The outer wall of the molded part 132 can close with the concave surface of the first recess 112 and the concave surface of the second recess 122 to form a molding cavity for accommodating and molding the silicone raw material sheet. The molding cavity can cooperate with the molded part to form a bag-shaped space. When the heated silicone raw material sheet is molten and placed in the molding cavity, it can fill the molding cavity through flow, thereby forming a bag-shaped part with the same structure as the molding cavity.

[0058] In this embodiment, the guide rail platform includes two guide rails with their ends respectively placed in the processing area and the loading / unloading area. The two guide rails are arranged in parallel and spaced apart to form a gap area for supporting both sides of the moving platform. A moving cylinder is provided between the two guide rails at the processing area end. The moving rod of the moving cylinder can drive the moving platform to move along the guide rail direction by moving within the gap area. The moving cylinder is provided with a shrinkage sensor for detecting the movement of the moving rod towards the processing area and an extension sensor for detecting the movement of the moving rod towards the loading / unloading area. The moving platform can move back and forth between the loading / unloading area and the processing area by the shrinkage and extension of the moving rod. The moving platform can determine the position of the moving platform in the processing area by the detection of the shrinkage sensor and the position of the moving platform in the loading / unloading area by the detection of the extension sensor.

[0059] In this embodiment, the lifting mechanism consists of two lifting cylinders respectively positioned outside the two guide rails. The connecting beam 231 has adapters at both ends that fit the tops of the telescopic rods of the lifting cylinders. The tops of the telescopic rods of the two lifting cylinders are positioned below the adapters. The adapters increase the contact area with the tops of the telescopic rods, preventing the mold assembly from sliding during the lifting and lowering motion of the telescopic rods. This ensures the stability of the mold assembly during lifting and lowering, facilitating accurate placement of the mold assembly on the top of the moving mold. The lifting cylinders are equipped with a reset sensor for detecting the telescopic rod's descent and a lifting sensor for detecting its elevation. The telescopic rod's elevation and descent heights are determined by the lifting and reset sensors. The elevation height allows for complete separation of the mold assembly from the moving mold, creating space for placing the silicone raw material sheet within the first recess. The descent height allows the mold assembly to rest on the moving mold, creating space for separating the top of the telescopic rod from the bottom of the adapters, facilitating the movement of the moving platform to move the mold assembly and the moving mold as a whole.

[0060] In this embodiment, the moving mold, fixed mold, and mold assembly are all housed within a sealed space formed by the machine's descent and the closing of the top of the moving platform. The machine is equipped with heating elements that provide heat to the moving and fixed molds. The moving and fixed molds transfer heat to the molding cavity through metal thermal conduction, thus providing the silicone raw material sheet placed within the molding cavity with the heat required to reach a molten state. The moving and fixed molds are each equipped with two temperature sensors for detecting their respective temperatures. The moving mold is also equipped with a pressure sensor for detecting the pressure within the molding cavity. The temperature sensors control the heating temperature of the moving and fixed molds, ensuring it remains within a suitable temperature range for reshaping the silicone raw material sheet. The heating effect of the heating elements and the gas generated during the reshaping process increase the gas pressure within the molding cavity. When the pressure exceeds a set value, the gas can be vented by opening the vent holes on both sides of the moving mold. This helps control the gas within the molding cavity within a reasonable range and prevents the formation of air bubbles on the molded bag, resulting in a smoother surface and ensuring the uniformity of the bag's density. The extension sensor, lifting sensor, and reset sensor are all magnetic switches mounted on the cylinder. The controller includes a memory, a processor, and a computer program stored in the memory and executable on the processor. The magnetic switches and pressure sensors are electrically connected to the controller, enabling them to detect changes in the processing equipment and mold equipment, respectively. During this process, the magnetic switches and pressure sensors input the detected changes in the status values ​​to the controller as signals. This allows the controller to understand the operating status of the processing equipment and mold equipment based on the changes in the feedback signal values, and to execute the corresponding computer program based on the received signal values. This, in turn, controls the processing equipment and mold equipment to perform the next operational operation and complete the production of the silicone packaging bag.

[0061] In this embodiment, the molded component is provided with a sealing element that matches the opening of the molded bag. The molded component includes a fixing member 21 whose first end is connected to the side of the connecting beam, a connecting member 22 whose first end is connected to the tail end of the fixing member 21, and a bag body 23 whose first end is connected to the tail end of the connecting member 22. The sealing element is placed on the connecting member and includes a first strip-shaped member 221 and a first tooth-shaped member 223 arranged perpendicular to the bag opening direction on the top surface of the molded component, and a second strip-shaped member 222 and a second tooth-shaped member 224 arranged on the bottom surface of the molded component. Molten silicone raw material can be integrally molded into a molded bag with sealing function according to the shape of the sealing element in the molding cavity. This reduces the sealing element installation steps in the later stage of the molded bag, and improves the production efficiency of the product while reducing manual operation steps. It also helps to increase the firmness of the sealing element on the molded bag through integral molding, thereby increasing the reliability of the product.

[0062] In this embodiment, as Figure 7-11 As shown, the first toothed member 223 and the second toothed member 224 are both multiple concave teeth 226 and multiple convex teeth 225 arranged from one side of the connector to the other. The multiple concave teeth 226 are arranged at intervals and can form non-recessed intervals 227 between adjacent concave teeth 226. Each convex tooth 225 is placed on the top surface of each interval 227, and the outer wall of the convex tooth can form a continuous smooth curved surface with the inner wall of the concave teeth on both sides. Each convex tooth and each concave tooth is a congruent arc shape, and each concave tooth on the first toothed member is arranged corresponding to each convex tooth on the second toothed member, and each convex tooth on the first toothed member is arranged corresponding to each concave tooth on the second toothed member. The formed bag can form two toothed sealing parts on the two inner sides of the bag opening through the arrangement of the first toothed member and the second toothed member, so that the bag opening can be sealed by the interlocking connection of the two toothed sealing parts without the two inner sides being misaligned. The first strip 221 includes a first groove 2211 recessed in the top surface of the connector and two first protrusions 2212 protruding from the top surface of the connector and arranged along the groove opening direction of the first groove 2211. The two first protrusions 2212 are respectively arranged on both sides of the groove opening of the first groove 2211. The second strip 222 includes a second groove 2221 recessed in the bottom surface of the connector and a second protrusion 2222 placed on the bottom wall of the second groove 2221 and protruding from the bottom surface of the connector along the groove opening direction of the second groove 2221. The second protrusion can divide the second groove into two recesses on both sides of the second protrusion. The two recesses are respectively arranged corresponding to the two first protrusions. The second protrusion is arranged corresponding to the first groove. The forming bag can form two sealing parts on the inner side of the bag opening by the setting of the first strip and the second strip, so that the bag opening of the forming bag can be sealed by the mutual interlocking connection of the two sealing parts.

[0063] In this embodiment, according to the structure described above, the method for producing the molded part may include the following steps:

[0064] Step S101: Cast the original parts of the fastener, bag body and connector and complete the grinding and polishing operations.

[0065] The connector component is a connector without the first toothed component, second toothed component, first strip-shaped component, and second strip-shaped component. The inclusion of this connector component allows external processing equipment to process it into a connector. The external processing equipment includes a grinding head for grinding and polishing objects, a 3D printer head for printing objects, and a mounting base for cooperating with the grinding head and the 3D printer head.

[0066] In step S102, after installing the connector component onto the mounting base, the mounting base is controlled to adjust the connector component to the first state with its top surface facing upwards. When the connector component is adjusted to the first state, the grinding head is controlled to move according to the position of each concave tooth, the first groove, and the second groove on the connector component. During the movement, the grinding head can sequentially complete the grinding and polishing operations on each concave tooth, the first groove, and the second groove.

[0067] In this embodiment, during the grinding and polishing operations of the grinding head, the mounting base can drive the connecting component to move in coordination with the grinding head. This movement of the connecting component increases the angle and range of motion of the grinding head on the connecting component, thereby increasing the complexity of the structure ground by the grinding head on the connecting component. Furthermore, in the absence of protruding teeth, during the grinding and polishing of concave teeth, the absence of protruding teeth on both sides allows for increased angle and range of motion of the grinding head relative to the connecting component when grinding and polishing the inner arc wall of the concave teeth. This solves the problem of the grinding head being unable to enter the concave teeth for grinding operations when protruding teeth are present.

[0068] When the grinding head finishes grinding and polishing each concave tooth and the first groove on the connector, the control base drives the connector to adjust to the second state with the bottom surface facing upward, so that the grinding head can complete the grinding and polishing operation on the remaining concave teeth and the second groove after the connector is adjusted to the second state.

[0069] In step S103, after the grinding head finishes grinding and polishing each concave tooth and the second groove on the connector original, the external processing equipment will control the 3D printer head to enter the working state and control the mounting base to adjust the connector original to the first state. When the connector original is adjusted to the first state, the 3D printer head is controlled to move according to the position of each convex tooth, the first convex strip and the second convex strip on the connector original. The 3D printer head can sequentially complete the printing operation of each convex tooth, the first convex strip and the second convex strip during the movement.

[0070] In this embodiment, during the printing process of the 3D printer head, the mounting base can drive the connecting parts to cooperate with the operation of the 3D printer head, which facilitates the printing operation of the 3D printer head.

[0071] When the 3D printer head finishes printing the teeth and the first ridge on the connector, the control mounting base moves the connector to the second state, so that the 3D printer head can complete the printing of the remaining teeth and the second ridge after the connector is adjusted to the second state.

[0072] The printed concave teeth, first convex strip, and second convex strip can be polished by controlling the grinding head with external processing equipment, which helps to increase the smoothness of the outer wall of the printed part and improve the reliability of product processing.

[0073] Once the connector components are processed into connectors, the fasteners, connectors, and bag body components can be connected and installed. When the installation is completed, the production of the molded components is finished. By dividing the molded components into sections, the production cost of the fasteners and bag body components can be reduced. At the same time, the complex structure on the connectors can be made by combining grinding and printing, which improves the reliability of the product.

[0074] In another embodiment, a method for producing silicone packaging bags is also disclosed. This method is applied to the production apparatus for producing silicone packaging bags disclosed in the above embodiments to realize the production of silicone packaging bags, as shown in the attached figure. Figure 12 As shown, this method can specifically include the following:

[0075] Step S1: After placing the silicone raw material sheet on the mold assembly and the moving mold, control the lifting mechanism to descend and drive the mold assembly to rest on the top of the moving mold to complete the covering of the silicone raw material sheet on the moving mold. After the lifting mechanism descends to the first low position, control the moving stage to drive the mold assembly and the moving mold as a whole to move into the processing area.

[0076] In this embodiment, as Figure 13 As shown, step S1 may further include the following steps:

[0077] Step S11: When the weighed silicone raw material sheet is placed on the mold assembly and the moving mold, the lifting mechanism is controlled to descend and drive the mold assembly to rest on the top of the moving mold. When the bottom of the mold assembly covers the silicone raw material sheet on the moving mold, the top of the lifting mechanism separates from the bottom of the mold assembly.

[0078] Among them, the silicone raw material sheets are laid flat on the top surface of the corresponding molded part and the bottom wall of the first concave part respectively. The lifting cylinder of the lifting mechanism can retract the telescopic rod by controlling the internal gas discharge. The mold assembly placed on the top of the telescopic rod by the adapter can be placed on the top of the moving mold by the descent of the top of the telescopic rod.

[0079] The silicone raw material sheet is made of inorganic silicone and vulcanizing agent C-13A. The mixed mass is 74g of inorganic silicone and 0.88g of vulcanizing agent C-13A. The weight of a single silicone raw material sheet is between 37.5-37.8g. A molded bag requires two silicone raw material sheets, one placed in the first recess and the other on the top surface of the corresponding molded part.

[0080] Step S12: When the reset sensor of the lifting mechanism detects that the lifting mechanism has descended to the first low position, the movement of the lifting mechanism is stopped, and the retraction movement of the moving cylinder placed at the processing area end of the guide rail platform is controlled to drive the moving table to move towards the processing area.

[0081] The reset sensor is a magnetic switch used to detect when the retractor rod has retracted to its final position. The first low position is set by adjusting the retractor rod's retraction distance using this magnetic switch. When the magnetic switch outputs 1, it provides a start signal to the moving cylinder to retract and move. During the adjustment of the first low position, the height of the top of the retractor rod is adjusted to be lower than the height of the mold assembly when it is placed on top of the moving mold, to prevent the top of the retractor rod from obstructing the movement of the mold assembly and the moving mold as a whole.

[0082] Step S2: After the moving platform arrives in the processing area, the control guide platform is raised to the set high position and drives the moving platform, mold assembly and moving mold as a whole to move. After the guide platform is raised to the point where the fixed mold covers the top of the moving mold and completes the covering of the raw material sheet on the mold assembly, the control machine is lowered to the second low position and forms a closed space to accommodate the moving mold, mold assembly and fixed mold as a whole.

[0083] In this embodiment, as Figure 14 As shown, step S2 can also specifically include the following steps:

[0084] Step S21: When the shrinkage sensor on the moving cylinder detects that the moving cylinder has retracted into place, the moving table moves the mold assembly and the moving mold as a whole into the processing area, and at the same time controls the guide rail platform to lift the moving table, the mold assembly and the moving mold as a whole to the set height.

[0085] In this embodiment, the movable cylinder controls the inward retraction of the movable rod by venting internal air. The movable platform, connected to the top of the movable rod, moves towards the processing area as the rod retracts. The retraction sensor is a magnetic switch used to detect when the movable rod has retracted to its final position. When the magnetic switch outputs a value of 1, it provides a start signal to the guide rail platform to lift and move. During the adjustment of the retraction degree of the movable rod, the distance the movable rod moves the movable platform to the processing area is the degree of retraction of the movable rod as indicated by the magnetic switch.

[0086] Step S22: When the guide rail platform moves to the set high position, the top of the moving mold and the bottom of the fixed mold close to cover the silicone raw material sheet on the mold assembly inside the bottom of the fixed mold, and at the same time, the machine is controlled to descend to the second low position.

[0087] In this embodiment, the set height is the height at which the lifting rod drives the guide rail platform to rise, and the specific distance of the set height is: the vertical distance above the top surface of the moving mold and the bottom surface of the fixed mold when the guide rail platform is not raised. When the guide rail platform drives the top surface of the moving mold to abut against the bottom surface of the fixed mold, the set height is raised further. Setting it above this vertical distance helps to increase the tightness of the closing of the moving mold and the fixed mold, so that the molding space formed by the closure of the first recess and the second recess, and the placement channel formed by the closure of the first groove and the second groove, have the sealing of the connection, preventing the silicone raw material in the molten state placed in the molding space from leaking out.

[0088] Step S3: After the machine is lowered to the second lowest position and abuts against the top of the moving platform, the machine is controlled to complete the forming operation of the moving mold and the fixed mold. After the forming time is reached, the machine is controlled to lift up and return to the first original position.

[0089] The molding time is set to 80 seconds, and a vulcanization time of equal duration is provided within the set molding time. This vulcanization time is the vulcanization process of the silicone raw material sheet under high temperature and high pressure in the molding cavity.

[0090] In this embodiment, as Figure 15 As shown, step S3 can also specifically include the following steps:

[0091] Step S31: When the machine is lowered to the second lowest position, the machine movement is stopped and the heating element inside the machine is activated to heat the moving mold and the fixed mold as a whole. The heat can be transferred through the moving mold and the fixed mold to the molding space used to accommodate and reshape the silicone raw material sheet and complete the reshaping operation.

[0092] In this embodiment, the second low position is a set height that is higher than the vertical distance between the bottom surface of the machine tool and the top surface of the moving platform. Setting it higher than this vertical distance helps to increase the tightness of the closure between the bottom surface of the machine tool and the top surface of the moving platform, thereby making the sealed space used to accommodate the mold structure airtight, thereby reducing the diffusion of internal heat, and the sealed space allows the internal heat to act more evenly on the mold assembly.

[0093] The heating element sets the heating temperature of the fixed mold to 195 (190±10℃) and the heating temperature of the moving mold to 188 (190±10℃). These temperatures are controlled by temperature sensors on the moving and fixed molds. When the temperatures on the moving and fixed molds exceed the set range, they can be adjusted by controlling the output value of the heating element.

[0094] Step S32: When the hot pressure value in the molding space formed by the closing of the moving mold and the fixed mold reaches the set pressure, the machine platform is controlled to move up to the exhaust height. When the machine platform reaches the exhaust height, the machine platform is stopped and the exhaust holes on both sides of the moving mold are controlled to perform an exhaust operation for a set time.

[0095] The set pressure value is set by a pressure sensor. When the silicone raw material sheet is heated and melted into silicone, gas is easily generated. With the help of gas replenishment and thermal expansion, the pressure in the molding cavity will reach or exceed the set value, thereby triggering the pressure sensor to output the extreme value signal of the gas pressure setting. The vent can be opened by the output signal of the pressure sensor for a set time of 0.1s.

[0096] Step S33: When the hot pressure value in the molding space reaches the set pressure again, control the venting holes on both sides of the moving mold to perform venting operation for a set time.

[0097] The venting operation is the same as in step S32 above. After the venting operation is completed, the heating output of the heating element to the moving mold and the fixed mold is stopped, and the set molding time is waited for to be completed.

[0098] Step S4: After the machine is raised to the first original position, the guide rail platform is controlled to descend and reset, and the moving table, moving mold and mold assembly are moved as a whole to complete the separation of the formed bag wrapped on the mold assembly from the bottom of the fixed mold. After the guide rail platform reaches the second original position, the moving table is controlled to move the mold assembly and moving mold as a whole to the loading and unloading area.

[0099] In this embodiment, as Figure 16 As shown, step S4 can also specifically include the following steps:

[0100] Step S41: When the machine is raised to the first set original position, the machine is stopped from moving and the guide rail platform is controlled to move the moving table, mold assembly and moving mold as a whole. When the guide rail platform moves to the second original position according to the set height, the mold assembly and moving mold separate the molded bag attached to the mold assembly from the fixed mold. At the same time, the moving cylinder is controlled to extend and move the moving table.

[0101] In this embodiment, the first original position is the starting position when the machine is lowered. At this time, the lifting height of the machine is the distance of the machine's descent minus the distance of the exhaust height. This is beneficial to facilitate the next descent operation of the machine without hindering the movement of the moving platform to drive the mold assembly and the moving mold.

[0102] The second original position is the starting position when the guide rail platform is raised, and the height at which the guide rail platform descends is the set height at which the guide rail platform rises.

[0103] The silicone raw material sheet is remelted and solidified into a molding bag, which is then attached to the molded part. The molding bag completes the demolding step by separating its outer wall from the inner wall of the corresponding second recess.

[0104] Step S42: When the extension sensor on the moving cylinder detects that the moving cylinder has extended to a set distance, the extension of the moving cylinder is stopped, and at the same time the moving table drives the mold assembly and the moving mold as a whole to move into the loading and unloading area.

[0105] In this embodiment, the movable cylinder can extend the movable rod outward by drawing external air pressure into the internal pressurization. The movable table moves into the loading and unloading area by pushing the movable rod. The extension sensor is a magnetic switch used to detect that the movable rod has extended to the correct position. When the magnetic switch outputs 1, it can provide a movement signal to the lifting cylinder to lift.

[0106] During the adjustment of the extension degree of the moving rod, the extension distance of the moving rod is the retraction distance of the moving rod from the loading / unloading area to the processing area. Setting this extension distance is beneficial to moving the moving table to the loading / unloading area while ensuring the next retraction movement of the moving rod.

[0107] Step S5: After the moving platform reaches the loading and unloading area, control the lifting mechanism to lift and reset, and drive the mold assembly and the formed bag wrapped on the mold assembly to move to complete the separation from the moving mold. After the lifting mechanism is lifted to the third original position, the unloading operation of the formed bag is performed and completed.

[0108] In this embodiment, as Figure 17 As shown, step S5 can also specifically include the following steps:

[0109] Step S51: When the moving cylinder extends to the position, control the lifting mechanism to lift to the third original position. During the lifting process, the top of the lifting mechanism abuts against the bottom of the mold assembly and drives the mold structure to lift and move. When the lifting sensor on the lifting mechanism detects that the lifting mechanism has reached the third original position, stop the lifting movement of the lifting mechanism. At the same time, the mold structure drives the forming bag to separate from the top of the moving mold and complete the demolding operation.

[0110] In this embodiment, the lifting cylinder can push the telescopic rod to the third original position by drawing external air pressure to the internal pressure. The lifting sensor is a magnetic switch used to detect that the telescopic rod has extended to the correct position. When the magnetic switch outputs 1, the device completes a single production process of the formed bag in terms of equipment operation. The operating cycle of the device is 220s.

[0111] The third original position is the starting position when the telescopic rod descends. During the adjustment of the extension degree of the telescopic rod, the extension distance of the telescopic rod is the set distance of the telescopic rod moving from the third original position. The setting of this extension distance is conducive to lifting the mold assembly while ensuring the next retraction movement of the telescopic rod.

[0112] The molded bag fitted onto the molded part can separate its outer wall from the inner wall of the first recess by lifting the mold assembly, thereby completing the demolding operation with the fixed mold.

[0113] The molded bag, which is completely attached to the outer wall of the molded part, can be detached from the molded part through the opening of the molded bag, thus completing the complete demolding operation of the molded bag.

[0114] Step S52: After the molded bag has been demolded, clean the top surface of the moving mold, the outer wall of the mold assembly, and the bottom surface of the fixed mold.

[0115] During the demolding process, there will be demolding residue on the fixed mold, moving mold, and mold assembly. This residue can be blown away by high-pressure gas from an external air gun. This prevents residual silicone or other impurities from being placed inside the molded bag during the next melt molding process. This ensures a fixed silicone content in the molded bag and helps prevent repeated heating of the silicone or the incorporation of impurities from affecting the quality of the silicone bag.

[0116] In this embodiment, the silicone raw material sheet is placed in the mold structure. The silicone raw material sheet can be heated to a molten state and placed in the molding cavity. This allows the fluid silicone raw material to cool and solidify according to the structure within the molding cavity, forming an integrated silicone packaging bag. Compared to the traditional production method that requires separate production of the left and right sides of the silicone packaging bag, the integrated production method of the silicone packaging bag described in this embodiment eliminates the manual operation step of gluing the left and right sides of the silicone packaging bag. This avoids misalignment or incomplete gluing when gluing the two sides, which helps improve the product's production qualification and strength. It also facilitates the automated production of silicone packaging bags using this equipment, reducing labor costs while increasing the efficiency of silicone packaging bag production.

[0117] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

[0118] In summary, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.

Claims

1. A method for producing a silica gel packaging bag based on a mold structure installed on a processing device, the processing device comprising a machine table and a guide rail platform arranged below the machine table, both the machine table and the guide rail platform moving up and down through lifting rods connected to both sides, the bottom of the machine table being a processing area, the other end of the guide rail platform extending to a feeding and discharging area, the mold structure comprising a movable mold, a mold assembly placed on the top of the movable mold, and a fixed mold fixed in the machine table, the guide rail platform being provided with a moving table capable of driving the movable mold and the mold assembly to move along the guide rail platform to and from the processing area and the feeding and discharging area, the guide rail platform arranged on both sides of the feeding and discharging area being provided with a lifting mechanism capable of driving the mold assembly to separate or connect with the top of the movable mold, the method specifically comprising the following steps: S1.After placing silica gel raw material pieces on the mold assembly and the movable mold, control the lifting mechanism to lower and place the mold assembly on the top of the movable mold to complete the wrapping of the silica gel raw material pieces on the movable mold, and after the lifting mechanism is lowered to a first low position, control the moving table to move the mold assembly and the movable mold as a whole to the processing area; S2.After the moving table reaches the processing area, control the guide rail platform to rise to a set high position and move the moving table, the mold assembly, and the movable mold as a whole, control the machine table to lower to a second low position to form a sealed space for accommodating the movable mold, the mold assembly, and the fixed mold as a whole after the guide rail platform rises to the top of the fixed mold to cover the top of the movable mold; S3.After the machine table is lowered to the second low position and abuts against the top of the moving table, control the machine table inside to complete the molding operation of the movable mold and the fixed mold, and control the machine table to rise to the first original position after the molding time is reached; S4.After the machine table rises to the first original position, control the guide rail platform to lower and reset to move the moving table, the movable mold, and the mold assembly as a whole to complete the separation of the molded bag wrapped on the mold assembly from the bottom of the fixed mold, and control the moving table to move the mold assembly and the movable mold as a whole to the feeding and discharging area after the guide rail platform reaches the second original position; S5.After the moving table reaches the feeding and discharging area, control the lifting mechanism to rise and reset to move the mold assembly and the molded bag wrapped on the mold assembly to complete the separation of the movable mold, and perform and complete the discharging operation of the molded bag after the lifting mechanism rises to a third original position.

2. The method of producing a silica gel packing bag according to claim 1, characterized by: The step S3 specifically comprises: S31.When the machine table is lowered to the second low position, stop the machine table movement and start the heating element inside the machine table to heat the movable mold and the fixed mold as a whole, the heat being transferred through the movable mold and the fixed mold to the molding space for accommodating and reshaping the silica gel raw material pieces and completing the reshaping operation; S32.When the hot pressure value in the molding space formed by the closure of the movable mold and the fixed mold reaches the set pressure, control the machine table to move upward to an exhaust height, stop the machine table movement when the machine table reaches the exhaust height, and control the exhaust holes on both sides of the movable mold to perform the exhaust operation for a continuous set time; S33.When the hot pressure value in the molding space reaches the set pressure again, control the exhaust holes on both sides of the movable mold to perform the exhaust operation for a continuous set time.

3. The method of producing a silica gel packing bag according to claim 2, characterized by: The step S1 specifically comprises: S11, when the weighed silica gel raw material pieces are placed on the mold assembly and the movable mold, the lifting mechanism is controlled to lower and rest on the top of the movable mold, and when the mold assembly covers the silica gel raw material pieces on the movable mold, the top of the lifting mechanism is separated from the bottom of the mold assembly; S12, when the reset sensor of the lifting mechanism detects that the lifting mechanism has lowered to the first low position, the movement of the lifting mechanism is stopped, and the retraction movement of the moving cylinder placed at the end of the guide rail platform processing area is controlled to drive the moving table to move towards the processing area.

4. The method of producing a silica gel packing bag according to claim 3, characterized by: The step S2 specifically comprises: S21, when the retraction sensor on the moving cylinder detects that the moving cylinder has retracted to the position, the moving table drives the mold assembly and the movable mold as a whole to be placed in the processing area, and the guide rail platform is controlled to drive the moving table, the mold assembly and the movable mold as a whole to be lifted to the set high position; S22, when the guide rail platform moves to the set high position, the top of the movable mold is closed with the bottom of the fixed mold to cover the silica gel raw material pieces on the mold assembly in the bottom of the fixed mold, and the machine table is controlled to lower to the second low position.

5. The method of producing a silica gel packing bag according to claim 4, characterized by: The step S4 specifically comprises: S41, when the machine table is lifted to the set first original position, the movement of the machine table is stopped, and the guide rail platform is controlled to drive the moving table, the mold assembly and the movable mold as a whole to move, and when the guide rail platform moves to the second original position according to the set height, the mold assembly and the movable mold drive the formed bag attached to the mold assembly to separate from the fixed mold to complete, and the moving cylinder is controlled to extend to drive the moving table to move; S42, when the extension sensor on the moving cylinder detects that the moving cylinder has extended to the set distance, the extension of the moving cylinder is stopped, and the moving table drives the mold assembly and the movable mold as a whole to move to the feeding and discharging area.

6. The method of producing a silica gel packing bag according to claim 5, characterized by: The step S5 specifically comprises: S51, when the moving cylinder extends to the position, the lifting mechanism is controlled to lift to the third original position, and in the lifting process of the lifting mechanism, the top of the lifting mechanism abuts against the bottom of the mold assembly to drive the mold structure to lift and move, and when the lifting sensor arranged on the lifting mechanism detects that the lifting mechanism reaches the third original position, the lifting movement of the lifting mechanism is stopped, and the mold structure drives the formed bag to separate from the top of the movable mold to complete the demolding operation; S52, after the formed bag completes the demolding operation, the cleaning step of the top of the movable mold, the outer wall of the mold assembly and the bottom of the fixed mold is completed.

7. A production device for producing silica gel packaging bags, characterized in that: it comprises a processing equipment, a mold structure placed on the processing equipment, and a controller, the mold assembly comprises a connecting rod, and a plurality of forming pieces arranged on both sides of the connecting rod, the top of the movable mold is provided with a first groove penetrating both sides, and a plurality of first recesses arranged on both sides of the first groove, each of the first recesses is communicated with the side wall of the first groove, the bottom of the fixed mold is provided with a second groove penetrating both sides, and a plurality of second recesses arranged on both sides of the second groove, each of the second recesses is communicated with the side wall of the second groove; the controller comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the method according to any one of claims 3-6 when executing the computer program.

8. The production apparatus for producing a silica gel packing bag according to claim 7, characterized by: The opening surface of the first recess can be connected with the opening surface of the second recess to form a storage channel for accommodating the connecting rod, and the connecting rod is arranged outside the two ends of the storage channel. The opening surface of the first recess can be connected with the opening surface of the second recess to form a molding space for accommodating a molding member. The outer wall of the molding member can be closed with the concave surface of the first recess and the concave surface of the second recess to form a molding cavity for accommodating and molding the raw material sheet of silica gel.

9. The apparatus for producing a packing bag of silica gel according to claim 8, wherein: The guide rail platform comprises two guide rails arranged at the processing area and the feeding and discharging area respectively, and the two guide rails are arranged in parallel and are spaced to form a spacing area for supporting the two sides of the moving table. The moving rod of the moving cylinder can drive the moving table to move back and forth between the feeding and discharging area and the processing area along the direction of the guide rail through the telescopic movement in the spacing area. The lifting mechanism is two lifting cylinders arranged at the feeding and discharging area end of the guide rail. The two lifting cylinders are arranged outside the two guide rails. The two ends of the connecting rod are provided with an adapter matched with the top of the telescopic rod of the lifting cylinder. The top of the telescopic rod of the two lifting cylinders is arranged below the adapter respectively.

10. The production apparatus for producing a silica gel packing bag according to claim 9, characterized by: The detection sensors arranged on the moving cylinder and the lifting cylinder are all magnetic switches. The movable mold is provided with a pressure sensor for detecting the pressure in the accommodating cavity. The magnetic switch and the pressure sensor are electrically connected with the controller respectively.

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