A core forming device capable of quickly changing codes and a code changing method thereof

Abstract

The present invention discloses a core forming device capable of rapid code change and a code change method thereof. The forming device comprises a forming drum, a negative pressure chamber assembly, a driving assembly, a displacement adjustment assembly and a mounting seat. The forming drum is provided with at least two forming units. The negative pressure chamber assembly is provided with an arc-shaped channel with an outer side open, and the arc-shaped channel is located on the inner side of a forming unit in the forming drum. The driving assembly drives the forming drum to rotate relative to the negative pressure chamber assembly, and the displacement adjustment assembly provides a moving guide space for the driving assembly to drive the forming drum to perform axial displacement relative to the negative pressure chamber assembly. The code change method is to use the displacement adjustment assembly to enable the driving assembly to drive the forming drum to move along the axial direction. During the movement, the negative pressure chamber assembly is fixed, and relative displacement occurs between the forming unit and the arc-shaped channel until the target forming unit is connected to the arc-shaped channel. The present invention can realize rapid code change without replacing the forming drum as a whole, thereby improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of disposable sanitary product manufacturing, and in particular to a core body forming device capable of quickly changing codes and a code changing method thereof. Background Art

[0002] At present, in most of the disposable sanitary products on the market (such as sanitary napkins, diapers, pants, etc.), in order to meet the needs of different consumers, the products are generally differentiated during the production process, especially for the absorbent core, which is usually designed in a variety of shapes. This requires the use of multiple sets of molding equipment with different specifications or models for production, or the same molding equipment is equipped with multiple molding drums with molds of different shapes to match the corresponding absorbent core molding. Based on the control of equipment cost and production cost, manufacturers will choose to equip the same molding equipment with multiple molding drums with molds of different shapes to meet production needs. In the production process of this type of equipment, when the product model, specification or absorbent core shape changes, it is necessary to replace different core molding molds to meet production needs. This operation process is commonly known as code change. When changing the code, it is usually necessary to disassemble and replace the entire molding drum. This operation process is time-consuming and labor-intensive, difficult to operate, and the code change time is too long, which easily leads to low production efficiency and the problem of inability to improve. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a core forming device capable of rapid code change, which can achieve rapid code change without the need for overall replacement of the forming drum to meet the processing requirements of different absorbent core forming processes.

[0004] Another object of the present invention is to provide a code changing method for the core forming device capable of fast code changing.

[0005] The technical solution of the present invention is: a core forming device capable of rapid code change, comprising a forming drum, a negative pressure chamber assembly, a driving assembly, a displacement adjustment assembly and a mounting seat, wherein the negative pressure chamber assembly is fixed on the mounting seat and extends into the forming drum, the middle portion of the forming drum is connected to the driving assembly, and the driving assembly is mounted on the mounting seat through the displacement adjustment assembly;

[0006] At least two molding units are arranged on the molding drum, each molding unit includes a plurality of molding modules distributed along the circumference of the molding drum, and an arc-shaped channel with an open outer side is arranged in the negative pressure chamber assembly, and the arc-shaped channel is located on the inner side of a molding unit in the molding drum;

[0007] The driving assembly drives the forming drum to rotate relative to the negative pressure chamber assembly, and the displacement adjustment assembly provides a moving guide space for the driving assembly to drive the forming drum to perform axial displacement relative to the negative pressure chamber assembly.

[0008] In the device structure, the mounting seat serves as a fixed base for supporting the entire core forming device and installing it on the production line. Each forming unit on the forming drum forms an absorbent core of a certain shape or specification. The displacement adjustment component drives the driving component and the forming drum to perform axial displacement relative to the negative pressure chamber component. The position of different forming units on the forming drum can be adjusted so that the target forming unit is connected to the arc-shaped channel open in the outside of the negative pressure chamber component, thereby forming an integral negative pressure adsorption structure. The negative pressure chamber component provides negative pressure adsorption for the corresponding forming unit, so that the absorbent core is formed in the corresponding forming unit. The displacement adjustment component can be adjusted by manual operation or by connecting to an existing automatic control device.

[0009] The forming drum includes a supporting drum body, a screen support part, a first screen, a second screen and a forming template. The screen support part, the first screen, the second screen and the forming template are sequentially installed on the supporting drum body along the center of the supporting drum body to the peripheral direction. Among them, the supporting drum body serves as the supporting body of the entire forming drum, and is used to install other components and connect with the driving assembly, the negative pressure chamber assembly, etc.; the screen support part is mainly used to support each forming module and form a structure connected with the negative pressure chamber in the negative pressure chamber assembly; the first screen, the second screen and the forming template constitute a forming mold of the absorbent core, which can be divided into a plurality of forming units of different shapes or specifications, and each forming unit can be divided into a plurality of forming modules of the same shape or specification along the circumferential direction of the forming drum.

[0010] In the molding drum, the molding template is a combined split structure, including a plurality of sub-templates arranged in sequence along the circumferential direction of the support drum body, each sub-template is provided with at least two molding through holes, and each molding through hole and the corresponding part of the second screen, the first screen, and the screen support portion form a molding module. Among them, the screen support portion is mainly composed of a cross-distribution of a transverse coarse mesh support sheet and a longitudinal coarse mesh support sheet to form a mesh support structure with through holes, the first screen adopts a coarse mesh, and the second screen can adopt a 50-mesh filter fine mesh, which are arranged layer by layer on the support drum body, and the molding module in a working state is connected to the negative pressure cavity in the negative pressure cavity assembly to form a good adsorption cavity, so that the material of the absorbent core is molded in the corresponding molding through hole.

[0011] In the forming drum, the supporting drum body includes an outer fixing ring, an inner fixing ring, a fixing ring connecting shaft and a drum body cover plate. The inner fixing ring and the outer fixing ring are respectively located on both sides of the supporting drum body. Along the circumferential direction of the supporting drum body, the inner fixing ring and the outer fixing ring are fixedly connected by a plurality of fixing ring connecting shafts to form an integral supporting structure. A drum body cover plate is also provided on the side of the outer fixing ring.

[0012] The negative pressure chamber assembly includes an outer fixing plate, an inner fixing plate, an arc-shaped partition plate and an inner partition plate. The outer fixing plate and the inner fixing plate are respectively located on both sides of the negative pressure chamber assembly. A negative pressure chamber is formed between the outer fixing plate and the inner fixing plate. A plurality of inner partition plates are arranged in the negative pressure chamber. An arc-shaped partition plate is arranged on the outer circumferential surface of the negative pressure chamber. The height of the outer circumferential surface of the arc-shaped partition plate is less than the height of the outer circumferential surface of the negative pressure chamber, so that the outer circumferential surface of the negative pressure chamber forms a partially open structure. In this structure, the outer fixing plate and the inner fixing plate are fixedly connected by a plurality of inner partition plates. The inner partition plates play a stable supporting role on the one hand, and can separate the negative pressure chamber into several independent chambers on the other hand, thereby improving the adsorption force of the negative pressure chamber. On the outer circumferential surface of the negative pressure cavity, an open structure is connected to a molding unit in a working state, so that each molding module in the molding unit corresponding to the outside of the negative pressure cavity has a negative pressure adsorption force, so that the absorbent core can be quickly formed in the molding mold, and the arc-shaped partition isolates other molding units that are not in a working state from the negative pressure cavity to prevent these molding units from also having negative pressure adsorption force and affecting the normal processing technology of the absorbent core.

[0013] The negative pressure cavity is fan-shaped as a whole and is located on the inner side of the forming drum along the circumferential direction of the forming drum. During installation, the negative pressure cavity assembly as a whole extends from one side of the inner fixed ring supporting the drum body, and the two are movably connected. The forming drum can rotate relative to the negative pressure cavity assembly, and can also be axially displaced relative to the negative pressure cavity assembly. After installation, the axial position of the forming drum relative to the negative pressure cavity assembly is adjusted, and a forming unit used for core forming is connected to the open structure on the outer circumferential surface of the negative pressure cavity. In the negative pressure cavity assembly, a number of cavity inlets are distributed on the inner fixed plate, and these cavity inlets are externally connected to an existing general negative pressure device, and the negative pressure device evacuates air from the negative pressure cavity to form a negative pressure, so that the forming module connected thereto has adsorption force. The negative pressure cavity is designed to be fan-shaped as a whole. When the corresponding molding module on the molding drum is transferred into the fan-shaped area, it is in the molding station. Under the action of the negative pressure adsorption force, the material for molding the absorbent core is adsorbed into the molding module to mold the absorbent core. When the corresponding molding module on the molding drum is transferred out of the fan-shaped area, the molding module is not connected to the negative pressure cavity and can be used as a transfer station. The molded absorbent core can be transferred to the subsequent process by using an external transfer drum and other devices.

[0014] The driving assembly comprises a driving shaft and a bearing seat, the driving shaft is mounted on the bearing seat, and the power output end of the driving shaft is fixedly connected to the forming drum.

[0015] The displacement adjustment assembly includes a guide rail, a slider and an adjustment plate. The bearing seat in the driving assembly is fixedly mounted on the adjustment plate. A slider is provided at the bottom of the adjustment plate. The guide rail is provided on the mounting seat. The slider cooperates with the guide rail. In this structure, when the slider slides relative to the guide rail, it drives the adjustment plate to move synchronously. Since the bearing seat in the driving assembly is fixedly mounted on the adjustment plate, the adjustment plate also drives the entire driving assembly and the forming drum to move synchronously.

[0016] The displacement adjustment assembly also includes a limit plate and a quick-release handle. The limit plates are provided on both sides of the adjustment plate. The limit plates are fixedly mounted on the mounting seat. The two sides of the adjustment plate are provided with outwardly protruding bumps. The middle part of the limit plate is in the shape of a groove. The bumps on the adjustment plate move in the grooves of the limit plate. At least one bump in the adjustment plate is also provided with a quick-release handle. The lower part of the quick-release handle passes through the bump and is threadedly connected to the limit plate. The setting of the limit plate can, on the one hand, limit the moving range of the drive assembly and achieve rapid positioning by cooperating with the bumps on both sides of the adjustment plate. On the other hand, it provides a fixed base for the quick-release handle. When the code needs to be changed, the drive assembly and the forming drum can be quickly moved by loosening the quick-release handle. When the code change is completed, the quick-release handle can be quickly locked on the limit plate.

[0017] The code changing method of the core forming device that can quickly change codes is specifically as follows: when code changing is required, the displacement adjustment component is started, so that the driving component drives the forming drum to move along the axial direction. During the movement of the driving component and the forming drum, the negative pressure chamber component is fixed, and a relative displacement is generated between the forming unit on the forming drum and the arc-shaped channel open on the outside of the negative pressure chamber component until the target forming unit (that is, the forming unit corresponding to the absorbent core to be formed) is connected to the arc-shaped channel, and the code changing operation is completed at this time.

[0018] When the above-mentioned core forming device capable of rapid code change and its code change method are used, the working principle is as follows: by setting a plurality of different forming units on the same forming drum, a plurality of absorbent cores of different shapes or specifications can be formed correspondingly, and at the same time, a displacement adjustment component is set on the driving component of the forming drum, and the driving component and the forming drum can be moved and adjusted along their axial direction by using the displacement adjustment component, and the arc-shaped channel opened on the outside of the negative pressure chamber component is set, when the corresponding target forming unit (i.e., the forming unit adapted to the absorbent core to be formed) moves to communicate with the arc-shaped channel, the code change operation can be completed. This code change method can avoid the disassembly and replacement of the forming drum, realize rapid code change, and also reduce the loss of equipment parts caused by frequent disassembly and assembly.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The core forming device capable of rapid code change and the code change method thereof are provided with a plurality of different forming units on the same forming drum, and a displacement adjustment component is utilized to enable the forming drum to be moved and adjusted along its axial direction, so that different forming units are replaced to be connected with the negative pressure cavity in the negative pressure cavity component, so as to realize the code change operation. The rapid code change operation can be realized without replacing the forming drum as a whole, so as to adapt to the processing requirements during the forming of different absorbent cores, effectively improve the production efficiency, and also reduce the loss of equipment parts due to frequent disassembly and assembly.

[0021] When the core forming device capable of quickly changing codes is used, the absorbent core production equipment no longer needs to be equipped with a plurality of different forming drums. When changing codes, it is only necessary to move the forming drum so that the target forming unit is connected to the negative pressure cavity. The operation is simple and fast, which can save code changing time to a large extent and greatly improve production efficiency. At the same time, the cost of the absorbent core production equipment is also low, which is conducive to further controlling production costs.

[0022] In the core forming device with rapid code change, each forming unit on the forming drum can be designed accordingly according to the specific shape or specification of the absorbent core to be formed, and the number of forming units can also be set according to the actual needs of the production process. It is flexible and convenient to use and can be widely applied to the absorbent core forming process of disposable sanitary products. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the components of the core forming device for quick code change after being disassembled.

[0024] Figure 2 for Figure 1 Schematic diagram of the structure of the main components after the middle forming drum is disassembled.

[0025] Figure 3 This is a schematic diagram of the structure on the other side of the forming drum after assembly.

[0026] Figure 4 for Figure 1 Schematic diagram of the structure of the main components after the medium negative pressure chamber assembly is disassembled.

[0027] Figure 5 This is a schematic diagram of the structure of the negative pressure chamber component after assembly.

[0028] Figure 6 This is a schematic diagram of the state of the core forming device with rapid code change when it is used to form an absorbent body of the first shape.

[0029] Figure 7 This is a schematic diagram of the state of the core forming device with rapid code change when it is used to form an absorbent body of the second shape.

[0030] In the above figures, the components indicated by the respective reference numerals are as follows: 1 is a forming drum, 1-1 is a first forming unit, 1-2 is a second forming unit, 2 is a negative pressure chamber assembly, 2-1 is an arc channel, 3 is a driving assembly, 4 is a displacement adjustment assembly, and 5 is a mounting seat; 6 is a supporting drum body, 6-1 is an outer fixing ring, 6-2 is an inner fixing ring, 6-3 is a fixing ring connecting shaft, 6-4 is a drum body cover plate, 7 is a screen support portion, 7-1 is a transverse coarse mesh support sheet, 7-2 is a longitudinal coarse mesh support sheet, 8 is a first screen, 9 is a second screen, 10 is a forming template, and 10-1 is a sub-template; 11 is an outer fixing plate, 12 is an inner fixing plate, 13 is an arc partition plate, and 14 is an inner partition plate; 15 is a driving shaft, and 16 is a bearing seat; 17 is a guide rail, 18 is a slider, 19 is an adjustment plate, 20 is a limit plate, and 21 is a quick release handle. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0032] Example

[0033] This embodiment is a core forming device capable of rapid code change, such as Figure 1 As shown, it includes a forming drum 1, a negative pressure chamber component 2, a driving component 3, a displacement adjustment component 4 and a mounting seat 5. The negative pressure chamber component is fixed on the mounting seat and extends into the forming drum. The middle part of the forming drum is connected to the driving component, and the driving component is installed on the mounting seat through the displacement adjustment component. The forming drum is provided with two forming units (i.e. Figure 1 The first molding unit 1-1 and the second molding unit 1-2 shown in the figure, each molding unit includes a plurality of molding modules distributed along the circumferential direction of the molding drum, and the negative pressure chamber assembly is provided with an arc-shaped channel 2-1 with an outer side open, and the arc-shaped channel is located on the inner side of a molding unit in the molding drum; the driving assembly drives the molding drum to rotate relative to the negative pressure chamber assembly, and the displacement adjustment assembly provides a moving guide space for the action of the driving assembly driving the molding drum to perform axial displacement relative to the negative pressure chamber assembly. In the device structure, the mounting seat is used as a fixed base to support the entire core molding device and install it on the production line. Each molding unit on the molding drum corresponds to a shape or specification of an absorbent core. The displacement adjustment assembly drives the driving assembly and the molding drum to perform axial displacement relative to the negative pressure chamber assembly, and the position of different molding units on the molding drum can be adjusted so that the target molding unit is connected to the arc-shaped channel with an outer side open in the negative pressure chamber assembly, thereby forming an integral negative pressure adsorption structure, and the negative pressure chamber assembly provides a negative pressure adsorption effect for the corresponding molding unit, so that the absorbent core is formed in the corresponding molding unit. Among them, the displacement adjustment assembly can be adjusted by manual operation, and can also be adjusted by externally connecting an existing automatic control device.

[0034] like Figure 2 or Figure 3 As shown, the forming drum includes a supporting drum body 6, a screen support part 7, a first screen 8, a second screen 9 and a forming template 10. From the center of the supporting drum body to the peripheral direction, the screen support part, the first screen, the second screen and the forming template are sequentially installed on the supporting drum body. Among them, the supporting drum body is used as the supporting body of the entire forming drum, which is used to install other components and connect with the driving assembly, the negative pressure chamber assembly, etc.; the screen support part is mainly used to support each forming module and form a structure connected with the negative pressure chamber in the negative pressure chamber assembly; the first screen, the second screen and the forming template constitute a forming mold of the absorbent core, which can be divided into a plurality of forming units with different shapes or specifications, and each forming unit can be divided into a plurality of forming modules with the same shape or specification along the circumferential direction of the forming drum. In the forming drum, the forming template is a combined split structure, including a plurality of sub-templates 10-1 arranged in sequence along the circumferential direction of the supporting drum body, each sub-template is provided with at least two forming through holes, and each forming through hole and the corresponding part of the second screen, the first screen and the screen support part form a forming module. Among them, the screen support part is mainly composed of a horizontal coarse mesh support sheet 7-1 and a longitudinal coarse mesh support sheet 7-2, which are cross-distributed to form a mesh support structure with through holes. The first screen adopts a coarse mesh, and the second screen can adopt a 50-mesh filter fine mesh, which is arranged layer by layer on the support drum body, and the molding module in the working state is connected with the negative pressure cavity in the negative pressure cavity assembly to form a good adsorption cavity, so that the material of the absorbent core is molded in the corresponding molding through hole. The support drum body includes an outer fixed ring 6-1, an inner fixed ring 6-2, a fixed ring connecting shaft 6-3 and a drum cover plate 6-4. The inner fixed ring and the outer fixed ring are respectively located on both sides of the support drum body. Along the circumferential direction of the support drum body, the inner fixed ring and the outer fixed ring are fixedly connected by multiple fixed ring connecting shafts to form an integral support structure. A drum cover plate is also provided on the side of the outer fixed ring.

[0035] like Figure 4 or Figure 5As shown, the negative pressure chamber assembly includes an outer fixing plate 11, an inner fixing plate 12, an arc-shaped partition plate 13 and an inner partition plate 14. The outer fixing plate and the inner fixing plate are respectively located on both sides of the negative pressure chamber assembly. A negative pressure chamber is formed between the outer fixing plate and the inner fixing plate. A plurality of inner partition plates are arranged in the negative pressure chamber. An arc-shaped partition plate is arranged on the outer circumferential surface of the negative pressure chamber. The height of the outer circumferential surface of the arc-shaped partition plate is less than the height of the outer circumferential surface of the negative pressure chamber, so that the outer circumferential surface of the negative pressure chamber forms a partially open structure. In this structure, the outer fixing plate and the inner fixing plate are fixedly connected by a plurality of inner partition plates. The inner partition plates play a stable supporting role on the one hand, and can separate the negative pressure chamber into several independent chambers on the other hand, thereby improving the adsorption force of the negative pressure chamber. On the outer circumferential surface of the negative pressure cavity, its open structure is connected to a molding unit in a working state, so that each molding module in the molding unit corresponding to the outer side of the negative pressure cavity has a negative pressure adsorption force, so that the absorbent core is quickly formed in the molding mold, and the arc-shaped partition isolates other molding units that are not in a working state from the negative pressure cavity to prevent these molding units from also having negative pressure adsorption forces and affecting the normal processing of the absorbent core. The negative pressure cavity is fan-shaped as a whole and is located on the inner side of the molding drum along the circumferential direction of the molding drum. During installation, the negative pressure chamber assembly as a whole extends from one side of the inner fixing ring of the supporting drum body, and the two are movably connected. The molding drum can rotate relative to the negative pressure chamber assembly, and can also be axially displaced relative to the negative pressure chamber assembly. After installation, the axial position of the molding drum relative to the negative pressure chamber assembly is adjusted, so that a molding unit used for core molding is connected to the open structure on the outer circumferential surface of the negative pressure cavity. In the negative pressure chamber assembly, there are several chamber entrances distributed on the inner fixed plate, which are externally connected to the existing general negative pressure device, and the negative pressure device evacuates the negative pressure chamber to form a negative pressure, so that the molding module connected to it has adsorption force. The negative pressure chamber is designed as a fan shape. When the corresponding molding module on the molding drum is transferred into the fan-shaped area, it is in the molding station. Under the action of the negative pressure adsorption force, the material for molding the absorbent core is adsorbed into the molding module to mold the absorbent core; when the corresponding molding module on the molding drum is transferred out of the fan-shaped area, the molding module is not connected to the negative pressure chamber at this time, and can be used as a transfer station, and the formed absorbent core can be transferred to the subsequent process by using an external transfer drum and other devices.

[0036] like Figure 1 As shown, the driving assembly includes a driving shaft 15 and a bearing seat 16, the driving shaft is mounted on the bearing seat, and the power output end of the driving shaft is fixedly connected to the forming drum.

[0037] like Figure 1As shown, the displacement adjustment assembly includes a guide rail 17, a slider 18, an adjustment plate 19, a limit plate 20 and a quick release handle 21. The bearing seat in the drive assembly is fixedly mounted on the adjustment plate, a slider is provided at the bottom of the adjustment plate, the guide rail is provided on the mounting seat, and the slider cooperates with the guide rail. In this structure, when the slider slides relative to the guide rail, it drives the adjustment plate to move synchronously. Since the bearing seat in the drive assembly is fixedly mounted on the adjustment plate, the adjustment plate also drives the entire drive assembly and the forming drum to move synchronously; limit plates are provided on both sides of the adjustment plate, the limit plates are fixedly mounted on the mounting seat, and both sides of the adjustment plate are provided with outwardly protruding bumps, the middle part of the limit plate is in the shape of a groove, and the bumps on the adjustment plate move in the groove of the limit plate; at least one bump in the adjustment plate is also provided with a quick release handle, and the lower part of the quick release handle passes through the bump and is threadedly connected to the limit plate. The setting of the limit plate can, on the one hand, limit the moving range of the drive assembly and achieve rapid positioning by cooperating with the protrusions on both sides of the adjustment plate; on the other hand, it provides a fixed basis for the quick-release handle. When the code needs to be changed, the drive assembly and the forming drum can be quickly moved by loosening the quick-release handle. When the code change is completed, the quick-release handle can be quickly locked on the limit plate.

[0038] The code changing method of the core forming device capable of fast code changing is as follows: when code changing is required, the displacement adjustment component is started, so that the driving component drives the forming drum to move along the axial direction. During the movement of the driving component and the forming drum, the negative pressure chamber component is fixed, and a relative displacement occurs between the forming unit on the forming drum and the arc-shaped channel open on the outside of the negative pressure chamber component until the target forming unit (i.e., the forming unit adapted to the absorbent core to be formed) is connected to the arc-shaped channel, and the code changing operation is completed. Figure 6 FIG. 2 shows the installation state of the forming drum relative to the negative pressure chamber assembly in the core forming device when the first forming unit is used to form the absorbent core. Figure 7 The figure shows the installation state of the forming drum in the core forming device relative to the negative pressure chamber assembly when the code is switched to using the second forming unit to form the absorbent core.

[0039] When the above-mentioned core forming device capable of rapid code change and its code change method are used, the working principle is as follows: by setting a plurality of different forming units on the same forming drum, a plurality of absorbent cores of different shapes or specifications can be formed correspondingly, and at the same time, a displacement adjustment component is set on the driving component of the forming drum, and the driving component and the forming drum can be moved and adjusted along their axial direction by using the displacement adjustment component, and the arc-shaped channel opened on the outside of the negative pressure chamber component is set, when the corresponding target forming unit (i.e., the forming unit adapted to the absorbent core to be formed) moves to communicate with the arc-shaped channel, the code change operation can be completed. This code change method can avoid the disassembly and replacement of the forming drum, realize rapid code change, and also reduce the loss of equipment parts caused by frequent disassembly and assembly.

[0040] As described above, the present invention can be better implemented. The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention; that is, all equivalent changes and modifications made according to the content of the present invention are covered by the scope of protection required by the claims of the present invention.

Claims

1. A core forming device capable of rapid code change, characterized in that: It includes a forming drum, a negative pressure chamber component, a driving component, a displacement adjustment component and a mounting seat. The negative pressure chamber component is fixed on the mounting seat and extends into the forming drum. The middle part of the forming drum is connected to the driving component. The driving component is mounted on the mounting seat through the displacement adjustment component. At least two molding units are arranged on the molding drum, each molding unit includes a plurality of molding modules distributed along the circumference of the molding drum, and an arc-shaped channel with an open outer side is arranged in the negative pressure chamber assembly, and the arc-shaped channel is located on the inner side of a molding unit in the molding drum; The driving assembly drives the forming drum to rotate relative to the negative pressure chamber assembly, and the displacement adjustment assembly provides a moving guide space for the driving assembly to drive the forming drum to perform axial displacement relative to the negative pressure chamber assembly; The forming drum comprises a supporting drum body, a screen support part, a first screen, a second screen and a forming template, and the screen support part, the first screen, the second screen and the forming template are sequentially installed on the supporting drum body from the center to the periphery of the supporting drum body; The driving assembly comprises a driving shaft and a bearing seat, the driving shaft is mounted on the bearing seat, and the power output end of the driving shaft is fixedly connected to the forming drum.

2. A core forming device capable of rapid code change according to claim 1, characterized in that: In the forming drum, the forming template is a combined split structure, including a plurality of sub-templates arranged in sequence along the circumferential direction of the supporting drum body, each sub-template is provided with at least two forming through holes, and each forming through hole and the corresponding parts of the second screen, the first screen, and the screen support portion form a forming module.

3. A core forming device capable of rapid code change according to claim 1, characterized in that: In the forming drum, the supporting drum body includes an outer fixing ring, an inner fixing ring, a fixing ring connecting shaft and a drum body cover plate. The inner fixing ring and the outer fixing ring are respectively located on both sides of the supporting drum body. Along the circumferential direction of the supporting drum body, the inner fixing ring and the outer fixing ring are fixedly connected by a plurality of fixing ring connecting shafts to form an integral supporting structure. A drum body cover plate is also provided on the side of the outer fixing ring.

4. A core forming device capable of rapid code change according to claim 1, characterized in that: The negative pressure chamber assembly includes an outer fixing plate, an inner fixing plate, an arc-shaped partition plate and an inner partition plate. The outer fixing plate and the inner fixing plate are respectively located on both sides of the negative pressure chamber assembly. A negative pressure chamber is formed between the outer fixing plate and the inner fixing plate. A plurality of inner partition plates are arranged in the negative pressure chamber. An arc-shaped partition plate is arranged on the outer circumferential surface of the negative pressure chamber. The height of the outer circumferential surface of the arc-shaped partition plate is smaller than the height of the outer circumferential surface of the negative pressure chamber, so that the outer circumferential surface of the negative pressure chamber forms a partially open structure.

5. A core forming device capable of rapid code change according to claim 4, characterized in that: The negative pressure cavity is fan-shaped as a whole and is located inside the forming drum along the circumferential direction of the forming drum.

6. A core forming device capable of rapid code change according to claim 1, characterized in that: The displacement adjustment component includes a guide rail, a slider and an adjustment plate. The bearing seat in the driving component is fixedly installed on the adjustment plate. A slider is provided at the bottom of the adjustment plate. The guide rail is provided on the mounting seat, and the slider cooperates with the guide rail.

7. A core forming device capable of rapid code change according to claim 6, characterized in that: The displacement adjustment assembly also includes a limit plate and a quick-release handle. Limit plates are provided on both sides of the adjustment plate. The limit plates are fixedly installed on the mounting seat. Both sides of the adjustment plate are provided with outwardly protruding bumps. The middle part of the limit plate is in the shape of a groove. The bumps on the adjustment plate move in the groove of the limit plate. A quick-release handle is also provided on at least one bump in the adjustment plate. The lower part of the quick-release handle passes through the bump and is threadedly connected to the limit plate.

8. The method for changing the code of the core forming device capable of fast code change according to any one of claims 1 to 7, characterized in that: When it is necessary to change the code, start the displacement adjustment component to make the driving component drive the forming drum to move along the axial direction. During the movement of the driving component and the forming drum, the negative pressure chamber component is fixed, and a relative displacement occurs between the forming unit on the forming drum and the arc channel open on the outside of the negative pressure chamber component until the target forming unit is connected to the arc channel. At this time, the code changing operation is completed.

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