Device for axially and rotatably cutting revolving body type foam piece

Abstract

The utility model belongs to the technical field of foam processing, and particularly relates to a device for axially and rotatably cutting a revolving body type foam piece. The device comprises an underframe, a roller bracket, a tension spring, an insulating sleeve, a wiring terminal I, a heating wire, a wiring terminal II, a buffer pad, a roller drum, a temperature controller, a deep groove ball bearing, a roller shaft, a snap spring, a base, a temperature control bracket, an adjusting bracket and a fixed bracket. The device adopts a thermal cutting processing mode, a cut of a cutting surface is smooth, foam and chippings are avoided, and the problem of poor cutting quality of a common cutting mode is solved. Meanwhile, the heating wire is short in heating time and high in temperature, and the cutting requirements of foam pieces made of different materials and different in hardness can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of foam processing, and in particular relates to a device for axially rotating cutting of rotating foam pieces. Background Art

[0002] During the after-sales service of rotating body products, in order to improve the protective performance of the packaging, aluminum-plastic bags were added to the outer surface of the products. This resulted in the original packaging foam parts not being compatible with the products after adding the aluminum-plastic bags, and the foam parts needed to be modified. The original foam parts belonged to the rotating body. When modifying them, the lack of a dedicated cutting device made this processing difficult to achieve. The specific difficulties were as follows:

[0003] 1. The material has low hardness and is not easy to clamp. Foam materials generally have low hardness and are prone to deformation during clamping, making clamping difficult or impossible.

[0004] 2. Poor cutting quality. Foam parts are made of foam particles by injection molding. Ordinary cutting methods will result in foam debris on the cutting surface, resulting in poor cutting quality.

[0005] 3. The general cutting device has poor portability. Existing general cutting devices have the disadvantages of being large in size and heavy in weight, making it difficult to carry the cutting device over long distances.

[0006] Therefore, it is necessary to design a device for axially rotating cutting of rotating foam parts, which can complete the temporary processing and modification of foam parts with different rotation diameters, different angles, different materials, and different hardness, and at the same time have the characteristics of portability, versatility and strong practical operability. Utility Model Content

[0007] The purpose of the present utility model is to design a device for axially rotating cutting of rotating foam parts, so as to complete the temporary processing and modification of foam parts with different rotation diameters, different angles, different materials and different hardness, and at the same time have the characteristics of portability, versatility and strong practical operability, thereby solving the problem of difficulty in temporary processing and modification of foam parts.

[0008] The technical solutions adopted in this utility model are as follows:

[0009] A device for axially rotating and cutting rotating foam parts, comprising a base frame 01, a roller bracket 02, a tension spring 03, an insulating sleeve 04, a terminal I 05, a heating wire 07, a terminal II 08, a buffer pad 09, a roller drum 10, a temperature controller 12, a deep groove ball bearing 13, a roller shaft 14, a retaining spring 15, a base 16, a temperature control bracket 18, an adjustment bracket 19, and a fixing bracket 21;

[0010] The base frame 01 is installed above the base 16, and a pair of fixed brackets 21 are symmetrically arranged in the middle of both sides of the base frame 01. Two pairs of roller brackets 02 are symmetrically arranged on both sides of the fixed brackets 21; the adjustment bracket 19 is placed in the fixed bracket 21 of the fuselage, and the two are clearance-fitted and can move relative to each other; a temperature control bracket 18 is provided on the outside of one of the roller brackets 02;

[0011] The adjustment bracket 19 is provided with a mounting hole; the tension spring 03 is sleeved on the outside of the wiring terminal I 05 and the wiring terminal II 08, and the nylon insulating sleeve 04 is sleeved on the outside of the tension spring 03, and both are clearance-fitted and can rotate with each other; the wiring terminal I 05 and the wiring terminal II 08 are respectively installed in the mounting holes on the side of the adjustment bracket 19 of the adjustment mechanism; the heating wire 07 is installed between the wiring terminal I 05 and the wiring terminal II 08; the thermostat 12 is fixed on the temperature control bracket 18, and the thermostat 12 is connected to the wiring terminal I 05 and the wiring terminal II 08 on both sides through the wire 11 to achieve heating of the heating wire 07;

[0012] The roller drum 10 is a hollow cylindrical shell, and a circular groove is provided on the inner side of the end face of the roller drum 10; the buffer pad 09 is embedded in the outer surface of the roller drum 10, and the two cannot rotate relative to each other; the deep groove ball bearing 13 is installed in the circular groove on the end face of the roller drum 10, and the two are interference fit and cannot rotate relative to each other; the roller shaft 14 is installed in the center hole of the roller drum 10 and the deep groove ball bearing 13, and the roller shaft 14 and both of them are clearance fit and can rotate relative to each other, which is used to realize the relative rotation between the roller shaft 14 and the roller drum 10; the retaining spring 15 is installed in the annular groove at both ends of the roller shaft 14 to realize the axial positioning of the roller drum 10 and the deep groove ball bearing 13, and prevent the roller shaft 14 from axial movement.

[0013] Preferably, the top of the temperature control bracket 18 is open, and a PVC plug 17 is provided at the opening to play a protective role.

[0014] Preferably, the connection part of the base 16 is a stud structure, and the connection part of the chassis 01 is a threaded hole. The height of the four bases 16 can be adjusted through the threaded connection, so that the entire device can remain level on any work surface.

[0015] Preferably, the tensioning spring 03 is in a compressed state after assembly, and the elastic force of the tensioning spring 03 when compressed is used to pre-tighten the heating wire 07. During the cutting process, if the heating wire 07 is deformed due to high temperature and its length changes, adaptive adjustment can also be achieved to ensure that the heating wire 07 is always in a tensioned state.

[0016] Preferably, the insulating sleeve 04 is made of nylon.

[0017] Preferably, the material of the buffer pad 09 is rubber, and the low hardness of rubber is used to protect the foam piece to be cut.

[0018] Furthermore, the buffer pad 09 is composed of eleven circular rubber buffer rings, each of which is equidistantly distributed with a gap in the middle.

[0019] Preferably, the base frame 01 , the fixed bracket 21 , and the temperature control bracket 18 are all square tube structures; the base frame 01 is a rectangular frame composed of four square tubes.

[0020] Preferably, the heating wire 07 is installed on the wiring terminal I 05 and the wiring terminal II 08 through the heating wire screw 06 ; the thermostat 12 is fixed to the screw hole of the temperature control bracket 18 through the thermostat screw 20 .

[0021] Preferably, the maximum length, width and height dimensions of the device are 422 mm × 244 mm × 204 mm.

[0022] The utility model has the following features:

[0023] 1. The device uses a thermal cutting method, resulting in a smooth cut surface without foam debris, solving the problem of poor cutting quality associated with conventional cutting methods. The heating wire also features a short heating time and high temperature, meeting the cutting requirements of foam parts of varying materials and hardness.

[0024] 2. Through the design of the cutting assembly, the elastic force of the tension spring is used to achieve pre-tightening, so that the heating wire is always in a tensioned state during the cutting process, ensuring the quality of foam cutting.

[0025] 3. Through the component design of the position adjustment structure, it is possible to cut different types of rotating foam parts, thereby improving the versatility of the device.

[0026] 4. The device body adopts a square tube-based structural design, which greatly reduces the weight of the device while ensuring the overall strength, solving the problem of heavy weight and poor portability of general cutting devices.

[0027] 5. Based on the component design of the roller mechanism, during the modification, the foam part is rotated and the relative rotation between the foam part and the roller is utilized. The heating wire completes the cutting as the foam part rotates, and there is no need to clamp the foam part, which solves the problem of low hardness of the foam material and inconvenient clamping.

[0028] Beneficial effects achieved by this utility model:

[0029] The utility model solves the problem of axially rotating cutting of rotating foam parts, and provides an effective reference model for temporary cutting and modification of such foam parts. Its advantages are:

[0030] 1. Strong operability. The device is easy to operate and requires low skills from the user.

[0031] 2. High portability. The overall dimensions of the device are 422mm×244mm×204mm. The body is welded from square tubes, and a single person can carry and move the device.

[0032] 3. Strong versatility. The device can achieve cutting processing of various types of foam parts (different rotation diameters, different hardness, different materials) by adjusting the position of the heating wire.

[0033] 4. Good cutting surface quality. The foam cut is smooth and free of foam debris.

[0034] 5. Good cutting environment. The device adopts thermal cutting method, and the cutting process is noiseless. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a two-dimensional main view of Example 1 of the utility model.

[0036] Figure 2 It is a two-dimensional left view of embodiment 1 of the present utility model.

[0037] Figure 3 It is a two-dimensional right view of Example 1 of the utility model.

[0038] Figure 4 This is a three-dimensional assembly explosion diagram of Example 1 of the utility model.

[0039] Figure 5 This is a three-dimensional assembly explosion diagram of the roller structure of Example 1 of the present utility model.

[0040] Figure 6 This is a schematic diagram of the assembly of the roller structure of Example 1 of the present utility model.

[0041] Figure 7 This is a three-dimensional assembly effect diagram of Example 1 of the utility model.

[0042] Figure 8 This is a schematic diagram of the utility model and the foam piece to be cut before cutting.

[0043] (a) Integral part (b) Semi-enclosed part.

[0044] Figure 9 Schematic diagram of the foam part cutting process. DETAILED DESCRIPTION

[0045] To make the purpose, technical solutions, and advantages of the examples of the present invention more clear, the technical solutions in the examples of the present invention will be clearly and completely described below in conjunction with the drawings in the examples of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0046] Example 1

[0047] like Figures 1 to 7 As shown, a device for axially rotating and cutting rotating foam parts includes a base frame 01, a roller bracket 02, a tension spring 03, an insulating sleeve 04, a terminal I 05, a heating wire 07, a terminal II 08, a buffer pad 09, a roller drum 10, a temperature controller 12, a deep groove ball bearing 13, a roller shaft 14, a retaining spring 15, a base 16, a temperature control bracket 18, an adjustment bracket 19, and a fixing bracket 21;

[0048] The base frame 01 is installed above the base 16, and a pair of fixed brackets 21 are symmetrically arranged in the middle of both sides of the base frame 01, and two pairs of roller brackets 02 are symmetrically arranged on both sides of the fixed bracket 21; the adjustment bracket 19 is placed in the fixed bracket 21 of the fuselage, and the two are clearance-fitted and can move relative to each other; a temperature control bracket 18 is provided on the outside of one of the roller brackets 02; the base frame 01, the fixed bracket 21, and the temperature control bracket 18 are all square tube structures; the base frame 01 is a rectangular frame composed of four square tubes.

[0049] The adjustment bracket 19 is provided with mounting holes. The tension spring 03 is fitted over the terminals I 05 and II 08, while the nylon insulating sleeve 04 is fitted over the tension spring 03. Both are loosely fitted and can rotate relative to each other. Once assembled, the tension spring 03 is in a compressed state, utilizing the elastic force of the compression of the tension spring 03 to pre-tighten the heating wire 07. During the cutting process, if the heating wire 07 deforms due to high temperature, causing its length to change, adaptive adjustment can be achieved, ensuring that the heating wire 07 remains taut. Terminals I 05 and II 08 are respectively mounted in mounting holes on the side of the adjustment bracket 19. The heating wire 07 is mounted between terminal I 05 and terminal II 08 via heating wire screws 06. The thermostat 12 is secured to the screw holes of the temperature control bracket 18 via thermostat screws 20. The thermostat 12 is connected to the terminals I 05 and II 08 on either side via wires 11, heating the heating wire 07.

[0050] The roller drum 10 is a hollow cylindrical shell with a circular groove on the inner side of the end face of the roller drum 10. The buffer pad 09 is embedded in the outer surface of the roller drum 10, and the two cannot rotate relative to each other. The buffer pad 09 is composed of eleven circular rubber buffer rings, each of which is evenly spaced and has a gap in between. The deep groove ball bearing 13 is installed in the circular groove on the end face of the roller drum 10, and the two have an interference fit, and cannot rotate relative to each other. The roller shaft 14 is installed in the center hole of the roller drum 10 and the deep groove ball bearing 13, and the roller shaft 14 has a clearance fit with both, and can rotate relative to each other, used to achieve relative rotation between the roller shaft 14 and the roller drum 10. The retaining spring 15 is installed in the annular groove at each end of the roller shaft 14 to achieve axial positioning of the roller drum 10 and the deep groove ball bearing 13, and prevent the roller shaft 14 from axial movement.

[0051] The top of the temperature control bracket 18 is open, and a PVC plug 17 is provided at the opening for protection.

[0052] The connection part of the base 16 is a stud structure, and the connection part of the chassis 01 is a threaded hole. The height of the four bases 16 can be adjusted through the threaded connection, so that the entire device can remain level on any work surface.

[0053] The insulating sleeve 04 is made of nylon. The cushioning pad 09 is made of rubber, which protects the foam part to be cut by taking advantage of the low hardness of the rubber material.

[0054] The maximum length, width and height dimensions of the device are 422 mm × 244 mm × 204 mm.

[0055] like Figure 8 、 Figure 9 As shown, the operation process of the utility model is:

[0056] (1) Move the adjustment bracket 19 according to the foam cutting size and shape requirements, adjust the heating wire 07 to the appropriate position, and then turn on the temperature control device switch to heat the heating wire for 5 to 10 seconds;

[0057] (2) After the heating wire is heated, place the foam piece through the heating wire 07 and place it in the middle of the rolling mechanism;

[0058] (3) Slowly rotate the foam piece to drive the rolling mechanism to rotate, and the heating wire cuts as the foam piece rotates.

[0059] (4) After rotating one circle, remove the foam piece from the position where it passed through the heating wire in step (2).

[0060] (5) The cut portion of the removed foam piece is manually removed to complete the cutting.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A device for axially rotating and cutting a rotating foam part, characterized in that: It includes a base frame (01), a roller bracket (02), a tension spring (03), an insulating sleeve (04), a terminal I (05), a heating wire (07), a terminal II (08), a buffer pad (09), a roller drum (10), a temperature controller (12), a deep groove ball bearing (13), a roller shaft (14), a retaining spring (15), a base (16), a temperature control bracket (18), an adjustment bracket (19), and a fixing bracket (21); The base frame (01) is installed above the base (16), a pair of fixed brackets (21) are symmetrically arranged in the middle of both sides of the base frame (01), and two pairs of roller brackets (02) are symmetrically arranged on both sides of the fixed brackets (21); the adjustment bracket (19) is placed in the fixed bracket (21) of the machine body, and the two are clearance-matched and can move relative to each other; a temperature control bracket (18) is provided on the outside of one of the roller brackets (02); The adjusting bracket (19) is provided with a mounting hole; the tension spring (03) is sleeved on the outside of the connecting terminal I (05) and the connecting terminal II (08), and the nylon insulating sleeve (04) is sleeved on the outside of the tension spring (03), and both are clearance-matched and can rotate with each other; the connecting terminal I (05) and the connecting terminal II (08) are respectively installed in the mounting holes on the side of the adjusting bracket (19) of the adjusting mechanism; the heating wire (07) is installed between the connecting terminal I (05) and the connecting terminal II (08); the thermostat (12) is fixed on the temperature control bracket (18), and the thermostat (12) is connected to the connecting terminal I (05) and the connecting terminal II (08) on both sides through the wire (11); The roller drum (10) is a hollow cylindrical shell, and a circular groove is provided on the inner side of the end surface of the roller drum (10); the buffer pad (09) is embedded in the outer surface of the roller drum (10), and the two cannot rotate relative to each other; the deep groove ball bearing (13) is installed in the circular groove of the end surface of the roller drum (10), and the two are interference fit and cannot rotate relative to each other; the roller shaft (14) is installed in the center hole of the roller drum (10) and the deep groove ball bearing (13), and the roller shaft (14) and the two are clearance fit, and can rotate relative to each other, so as to realize the relative rotation between the roller shaft (14) and the roller drum (10); the retaining ring (15) is installed in the annular grooves at both ends of the roller shaft (14) to realize the axial positioning of the roller drum (10) and the deep groove ball bearing (13).

2. The device for axially rotating and cutting a rotating foam member according to claim 1, characterized in that: The temperature control bracket (18) has an opening at the top, and a PVC plug (17) is provided at the opening.

3. The device for axially rotating and cutting a rotating foam member according to claim 1, characterized in that: The connection part of the base (16) is a stud structure, and the connection part of the chassis (01) is a threaded hole. The height adjustment of the four bases (16) can be achieved through the threaded connection, so that the entire device can be kept level on any work surface.

4. The device for axially rotating and cutting a rotating foam member according to claim 1, characterized in that: The tension spring (03) is in a compressed state after assembly, and the heating wire (07) is pre-tightened by utilizing the elastic force of the tension spring (03) when compressed.

5. The device for axially rotating and cutting a rotating foam member according to claim 1, characterized in that: The material of the insulating sleeve (04) is nylon.

6. The device for axially rotating and cutting a rotating foam member according to claim 1, characterized in that: The material of the buffer pad (09) is rubber.

7. The device for axially rotating and cutting a rotating foam member according to claim 6, characterized in that: The buffer pad (09) is composed of eleven circular rubber buffer rings, each of which is equidistantly distributed with a gap in the middle.

8. The device for axially rotating and cutting a rotating foam member according to claim 1, characterized in that: The base frame (01), the fixed bracket (21), and the temperature control bracket (18) are all square tube structures; the base frame (01) is a rectangular frame composed of four square tubes.

9. The device for axially rotating and cutting a rotating foam member according to claim 1, characterized in that: The heating wire (07) is installed on the wiring terminal I (05) and the wiring terminal II (08) through the heating wire screw (06); the thermostat (12) is fixed to the screw hole of the temperature control bracket (18) through the thermostat screw (20).

10. The device for axially rotating and cutting a rotating foam member according to claim 1, characterized in that: The maximum length, width and height dimensions of the device are 422 mm × 244 mm × 204 mm.

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