Insulating sheet surface mounting equipment
By designing the insulating sheet surface patch equipment, the precise fit and shear of the tape is achieved by using the rotating shaft and cutting parts, and hot pressing fixing, the problems of tape stickiness operation difficulties and low efficiency in the prior art are solved, and the insulating sheet is improved fit efficiency and stability.
Patent Information
- Application Number
- CN202421136511.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-23
AI Technical Summary
During the current insulating sheet bonding process, the adhesiveness of the tape leads to difficulty in operation, cutting deviation and low efficiency, and the post-shear bonding step is low.
An insulating sheet surface patch device is designed, including support components, fixing mechanisms, limiting mechanisms, hot pressing components and slice components, which can accurately fit and shear the tape through rotating shafts and cutting components, and hot pressing fixing. Optimize the bonding process of insulating sheets.
It improves the bonding efficiency and stability of the insulating sheet, reduces manual operation errors, and realizes efficient bonding and fixing of the tape and the insulating sheet.
Smart Images

Figure CN222249452U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of insulating sheet preparation, in particular to an insulating sheet surface mounting device. Background Art
[0002] Insulation sheet is a multifunctional material widely used in the field of electrical insulation and heat dissipation. It is composed of a variety of thermal conductive materials and has the characteristics of insulation, high temperature resistance, chemical corrosion resistance, wear resistance, etc. According to the application requirements, there are many types of insulation sheets to choose from, such as frosted insulation sheets, flame retardant insulation sheets, PET insulation sheets, PP insulation sheets and PC insulation sheets.
[0003] In the prior art, the steps of attaching an insulating sheet to a patch area generally include: first, precisely cutting the insulating sheet according to the size and shape of the patch area; then, thoroughly cleaning the patch area to ensure that there is no dust and impurities; and finally, fixing the insulating sheet in place by methods such as double-sided tape, hot melt adhesive or ultrasonic welding.
[0004] Taking the use of double-sided tape as an example, the operation steps are as follows: First, attach one side of the double-sided tape to the insulation sheet and ensure that the tape and the four sides of the insulation sheet are completely aligned. Then, remove the excess tape. This step is easy to make your hands sticky due to the stickiness of the tape during manual operation, and there may be cutting deviations, which will affect the insulation sheet's fit and insulation performance. In addition, the insulation sheet needs to be marked in size before cutting, and the tape needs to be attached after cutting, which is inefficient. Utility Model Content
[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.
[0006] To this end, the purpose of the utility model is to propose an insulating sheet surface mounting device, which adheres the tape patch to the surface of the insulating sheet according to the size and shape of the insulating sheet on the patch area, and then cuts the insulating sheet after slicing, effectively improving the efficiency of insulating sheet cutting and mounting.
[0007] To achieve the above-mentioned purpose, the utility model proposes an insulating sheet surface mounting device, including a support assembly, a fixing mechanism, a limiting mechanism, a hot pressing assembly and a slicing assembly, wherein the support assembly includes a fixing plate and a support member, wherein the support member is rotatably arranged on the fixing plate, and the support member includes a first shaft rod, a second shaft rod, a third shaft rod, a driven shaft rod and a collection shaft rod, wherein the first shaft rod, the second shaft rod, the third shaft rod and the driven shaft rod are respectively rotatably arranged on the fixing plate, and the second shaft rod is arranged above the first shaft rod; the collection shaft rod is rotatably arranged on the fixing plate ; The fixing mechanism is arranged on the fixing plate, and the fixing mechanism includes a support plate, a support frame and a bottom plate, wherein the support plate is divided into two groups, and the two groups of support plates are respectively fixedly arranged on the fixing plate; the support frame is divided into two groups, and one end of the two groups of support frames is respectively arranged on the support plate of the lower group; the bottom plate is arranged on the other end of the two groups of support frames; the limiting mechanism is arranged on the top wall of the bottom plate; the hot pressing components are divided into two groups, and the two groups of hot pressing components are respectively arranged on the opposite end surfaces of the two groups of support plates; the slicing component is arranged on the fixing plate, and the slicing component is rotatably arranged on the top wall of the bottom plate.
[0008] In addition, the insulating sheet surface mounting device proposed in the application may also have the following additional technical features:
[0009] Specifically, the limiting mechanism includes an outer frame, a rotating shaft and a pressure rod, wherein the outer frame is arranged on the top wall of the base plate; the rotating shaft is rotatably arranged in the outer frame; and the pressure rod is arranged on the rotating shaft.
[0010] Specifically, the hot pressing assembly includes a movable shaft, a pressure roller and a heating mechanism, wherein the movable shaft is rotatably arranged on the support plate; the pressure roller is arranged on the movable shaft; the heating mechanism is arranged on the support plate and is close to the pressure roller.
[0011] Specifically, the heating mechanism includes an outer fixing plate and a heat-conducting component, wherein the outer fixing plate is arranged on the supporting plate; the heat-conducting component is in multiple groups, and the multiple groups of heat-conducting components are respectively arranged on the outer fixing plate.
[0012] Specifically, the slicing assembly includes an outer pressure plate, a driving component, a limiting groove, a limiting rod, a transverse cutting component, a longitudinal cutting component and a cotton pressing component, wherein the driving component is arranged on the fixed plate; the outer pressure plate is arranged on the output end of the driving component, and the outer pressure plate is arranged on the bottom plate; the limiting groove is opened on the inner wall of the outer pressure plate; the limiting rod is movably arranged in the limiting groove, and the limiting rod is connected to the support plate; the transverse cutting component is divided into two groups, and the two groups of the transverse cutting components are respectively arranged on the outer pressure plate; the longitudinal cutting component is divided into two groups, and the two groups of the longitudinal cutting components are respectively arranged on the outer pressure plate; the cotton pressing component is arranged on the outer pressure plate, and the cotton pressing component is arranged between the transverse cutting component and the longitudinal cutting component.
[0013] Specifically, the outer pressure plate is a semicircular plate, the bottom wall of the limiting rod abuts against the inner wall of the limiting groove, and the bottom wall of the limiting rod is provided with a chamfered corner.
[0014] Specifically, a knob is arranged on the rotating shaft, and the knob extends outside the outer frame. A chamfer is arranged on the bottom of the pressure rod, and the chamfer is abuttingly connected with the bottom plate.
[0015] Compared with the prior art, the insulating sheet surface mounting device of the utility model has the following advantages:
[0016] (1) Designing the size of the tape patch to be attached to the insulating sheet according to the size of the area on the surface of the object to be attached, and determining the size of the insulating sheet when cutting it based on the size of the tape patch, thereby optimizing the steps of attaching the insulating sheet and improving the efficiency of the attachment;
[0017] (2) The tape patch is sliced in the horizontal and vertical directions at the same time, and the tape and the insulating sheet are fixed by hot pressing, so that the tape patch is efficiently attached to the insulating sheet with good stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0019] Figure 1 This is a schematic diagram of the structure of an insulating sheet surface mounting device according to an embodiment of the utility model;
[0020] Figure 2 This is a schematic diagram of the structure of a limiting mechanism of an insulating sheet surface mounting device according to an embodiment of the utility model;
[0021] Figure 3 This is a schematic diagram of the structure of a hot pressing assembly of an insulating sheet surface mounting device according to an embodiment of the utility model;
[0022] Figure 4This is a schematic diagram of the heating mechanism structure of an insulating sheet surface mounting device according to an embodiment of the utility model;
[0023] Figure 5 This is a schematic structural diagram of a slicing assembly of an insulating sheet surface mounting device according to an embodiment of the utility model;
[0024] Figure 6 This is a bottom view of the slicing component structure of an insulating sheet surface mounting device according to one embodiment of the utility model.
[0025] As shown in the figure: 10, support assembly; 101, fixed plate; 102, support member; 1021, first shaft; 1022, second shaft; 1023, third shaft; 1024, driven shaft; 1025, aggregate shaft; 20, fixing mechanism; 201, support plate; 202, support frame; 203, bottom plate; 30, limiting mechanism; 301, outer frame; 302, rotating shaft; 303, pressure rod; 40, hot pressing assembly; 401, movable shaft; 402, pressure roller; 403, heating mechanism; 4031, outer fixing plate; 4032, heat conducting component; 50, slicing assembly; 501, outer pressure plate; 502, driving component; 503, limiting groove; 504, limiting rod; 505, horizontal cutting component; 506, longitudinal cutting component; 507, cotton pressing. DETAILED DESCRIPTION
[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.
[0027] The insulating sheet surface mounting device according to the embodiment of the utility model is described below with reference to the accompanying drawings.
[0028] like Figure 1-6 As shown, the insulating sheet surface mounting device of the embodiment of the utility model includes a supporting component 10, a fixing mechanism 20, a limiting mechanism 30, a hot pressing component 40 and a slicing component 50.
[0029] The support assembly 10 includes a fixed plate 101 and a support member 102 , wherein the support member 102 is rotatably disposed on the fixed plate 101 , and the support member 102 includes a first shaft 1021 , a second shaft 1022 , a third shaft 1023 , a driven shaft 1024 and a collection shaft 1025 .
[0030] It should be noted that the fixing plates 101 are provided in two groups, and the other group of fixing plates 101 and Figure 1 The fixing plates 101 are arranged opposite to each other, and the supporting members 102 are rotatably arranged on the opposite end surfaces of the two groups of fixing plates 101.
[0031] The first shaft 1021 , the second shaft 1022 , the third shaft 1023 and the driven shaft 1024 are rotatably disposed on the fixed plate 101 , respectively, and the second shaft 1022 is disposed above the first shaft 1021 .
[0032] Furthermore, the first shaft 1021 and the second shaft 1022 are located on the same axis, an insulating sheet is provided on the first shaft 1021, and a patch is provided on the second shaft 1022. After being torn, the release paper on the patch is rolled up on the third shaft 1023 through the driven shaft 1024.
[0033] The gathering shaft 1025 is rotatably disposed on the fixed plate 101 .
[0034] It should be noted that the material collecting shaft 1025 rotates, and when the slicing assembly 50 completes cutting of the patch, the remaining material is rolled up by the rotating material collecting shaft 1025. The position of the material collecting shaft 1025 can be designed according to actual conditions and is not specifically limited here.
[0035] The fixing mechanism 20 is disposed on the fixing plate 101 , and the fixing mechanism 20 includes a supporting plate 201 , a supporting frame 202 and a bottom plate 203 .
[0036] Among them, there are two groups of support plates 201, and the two groups of support plates 201 are fixedly set on the fixed plate 101 respectively. There are two groups of support frames 202, and one end of the two groups of support frames 202 is respectively set on the lower group of support plates 201, and the bottom plate 203 is set at the other end of the two groups of support frames 202.
[0037] It should be noted that the bottom plate 203 is disposed between the first shaft 1021 and the second shaft 1022 , the insulating sheet and the patch move on the bottom plate 203 , and then the end surfaces of the insulating sheet and the patch are moved to align through the limiting mechanism 30 .
[0038] The limiting mechanism 30 is arranged on the top wall of the bottom plate 203, the hot pressing assembly 40 is divided into two groups, and the two groups of hot pressing assemblies 40 are respectively arranged on the opposite end surfaces of the two groups of support plates 201, the slicing assembly 50 is arranged on the fixed plate 101, and the slicing assembly 50 is rotatably arranged on the top wall of the bottom plate 203.
[0039] It should be noted that the hot pressing assembly 40 described in this embodiment includes an electric heater installed on a set of upper support plates 201. The electric heater is a prior art and will not be described in detail here.
[0040] Specifically, during the preparation of the insulating sheet, the steps of attaching the patch to the insulating sheet and cutting the patch are as follows: sleeve the insulating sheet on the first shaft 1021, sleeve the patch on the second shaft 1022, peel off the release paper on the patch and roll it up on the third shaft 1023 through the driven shaft 1024. Pass the active ends of the insulating sheet and the patch through the bottom plate 203, and align the two ends of the insulating sheet and the patch through the limiting mechanism 30. During the movement of the insulating sheet and the patch, the patch is cut by the slicing component 50. After the cutting is completed, the insulating sheet and the patch are hot-pressed together by the hot pressing component 40. The patch is attached to the insulating sheet according to the shape and size of the insulating sheet, and the hot pressing fixation stability is better, so that the formed insulating sheet has self-adhesiveness, which is convenient for the subsequent use of the insulating sheet.
[0041] In one embodiment of the present invention, Figure 2 As shown, the limiting mechanism 30 includes an outer frame 301 , a rotating shaft 302 and a pressing rod 303 .
[0042] The outer frame 301 is disposed on the top wall of the bottom plate 203 , the rotating shaft 302 is rotatably disposed in the outer frame 301 , and the pressing rod 303 is disposed on the rotating shaft 302 .
[0043] It should be noted that when the pressure rod 303 on the rotating shaft 302 is under force, it is perpendicular to the bottom plate 203, which has a good limiting effect on the movable insulating sheet and patch, and quickly aligns the two ends of the insulating sheet and the patch.
[0044] In one embodiment of the present invention, Figure 3 As shown, the hot pressing assembly 40 includes a movable shaft 401 , a pressing roller 402 and a heating mechanism 403 .
[0045] The movable shaft 401 is rotatably disposed on the support plate 201 , the pressure roller 402 is disposed on the movable shaft 401 , and the heating mechanism 403 is disposed on the support plate 201 , and the heating mechanism 403 is close to the pressure roller 402 .
[0046] It should be noted that the outer diameter of the heating mechanism 403 is greater than the outer diameter of the pressing roller 402 . The length of the pressing roller 402 is set according to the size of the insulating sheet and is not specifically limited here.
[0047] In one embodiment of the present invention, Figure 4 As shown, the heating mechanism 403 includes an outer fixing plate 4031 and a heat conducting component 4032 .
[0048] The outer fixing plate 4031 is disposed on the support plate 201 , and the heat conducting components 4032 are multiple groups, and the multiple groups of heat conducting components 4032 are respectively disposed on the outer fixing plate 4031 .
[0049] It should be noted that the heat-conducting component 4032 is a heat-conducting copper sheet. By electrically heating the heat-conducting copper sheet, the heat-conducting component 4032 is close to the pressure roller 402, and the heat is transferred to the pressure roller 402. The pressure roller 402 is a copper pressure roller, which effectively transfers heat.
[0050] In one embodiment of the present invention, Figure 5 and Figure 6 As shown, the slicing assembly 50 includes an outer pressure plate 501 , a driving component 502 , a limiting groove 503 , a limiting rod 504 , a transverse cutting component 505 , a longitudinal cutting component 506 and a cotton pressing component 507 .
[0051] The driving component 502 is arranged on the fixed plate 101, the outer pressure plate 501 is arranged at the output end of the driving component 502, and the outer pressure plate 501 is arranged on the bottom plate 203. The limiting groove 503 is opened on the inner wall of the outer pressure plate 501, the limiting rod 504 is movably arranged in the limiting groove 503, and the limiting rod 504 is connected to the support plate 201. There are two groups of transverse cutting components 505, and the two groups of transverse cutting components 505 are respectively arranged on the outer pressure plate 501. There are two groups of longitudinal cutting components 506, and the two groups of longitudinal cutting components 506 are respectively arranged on the outer pressure plate 501. The cotton pressing 507 is arranged on the outer pressure plate 501, and the cotton pressing 507 is arranged between the transverse cutting component 505 and the longitudinal cutting component 506.
[0052] It should be noted that the driving component 502 described in this embodiment is a servo motor, and the driving component 502 is connected to the power supply through the control switch, and the driving component 502 is connected to the rotating shaft through the reducer, and the rotating shaft is connected to the outer pressure plate 501, thereby driving the outer pressure plate 501 to rotate. The speed of the outer pressure plate 501 is set according to the length of the insulating sheet to be formed.
[0053] Furthermore, the limiting rod 504 and the limiting groove 503 cooperate to limit the position of the outer pressure plate 501, thereby enhancing the stability of the outer pressure plate 501 during rotation. At the same time, the transverse cutting component 505 and the longitudinal cutting component 506 are embedded in the outer pressure plate 501, and the end faces of the transverse cutting component 505 and the longitudinal cutting component 506 are in contact with each other. The sizes of the transverse cutting component 505 and the longitudinal cutting component 506 are set according to the size of the insulating sheet.
[0054] In one embodiment of the present invention, Figure 5 As shown, the outer pressure plate 501 is a semicircular plate, the bottom wall of the limiting rod 504 abuts against the inner wall of the limiting groove 503, and the bottom wall of the limiting rod 504 is provided with a rounded corner.
[0055] It should be noted that the semicircular plate rotates with the rotating shaft on the driving component 502 as the center, and the reciprocating angle of the driving component 502 is set according to the size of the patch slices attached to the insulating sheet. The bottom of the limiting rod 504 is provided with a rounded corner to reduce the resistance of the outer pressure plate 501 when limiting the outer pressure plate 501.
[0056] In one embodiment of the present invention, Figure 2 As shown, a knob is provided on the rotating shaft 302 , and the knob extends to the outside of the outer frame 301 . A rounded corner is provided at the bottom of the pressure rod 303 , and the rounded corner is in contact with the bottom plate 203 .
[0057] It should be noted that the rotating shaft 302 is driven to rotate by the knob. After the two ends of the patch and the insulating sheet are aligned, the rotating shaft 302 is twisted to allow the patch and the insulating sheet to be transported forward synchronously.
[0058] The patching steps of the insulating sheet surface patching device of the utility model are: sleeve the insulating sheet on the first shaft 1021, sleeve the patch on the second shaft 1022, peel off the release paper on the patch and roll it on the third shaft 1023 through the driven shaft 1024.
[0059] The movable ends of the insulating sheet and the patch are passed through the bottom plate 203, and the two ends of the insulating sheet and the patch are aligned through the limiting mechanism 30. When the insulating sheet and the patch move, the two ends move and abut against the pressure rod 303. At this time, the two ends of the insulating sheet and the patch are aligned through the pressure rod 303. After alignment, the rotating shaft 302 is twisted to drive the pressure rod 303 to rotate counterclockwise, so that the aligned insulating sheet and patch are synchronously transported on the bottom plate 203.
[0060] During the movement of the insulating sheet and the patch, the patch is cut by the slicing assembly 50, and the driving component 502 is operated by controlling the switch and the power supply connection. The driving component 502 drives the outer pressure plate 501 to rotate. During the rotation, the outer pressure plate 501 drives the transverse cutting component 505 and the longitudinal cutting component 506 to limit the cutting of the patch. The cut patch is attached to the surface of the insulating sheet, and the remaining material is rolled up on the collecting shaft 1025.
[0061] After the cutting is completed, the insulating sheet and the patch are hot-pressed together by the hot-pressing assembly 40. The heat-conducting component 4032 is heated and conducts the heat to the pressing roller 402. The insulating sheet with the cut patch is moved between the two sets of pressing rollers 402, and the hot-pressing molding and fixing of the insulating sheet are performed by the pressing rollers 402. The patch is attached to the insulating sheet according to the shape and size of the insulating sheet, and the hot-pressing fixing stability is better, so that the formed insulating sheet has self-adhesiveness, which is convenient for the subsequent use of the insulating sheet.
[0062] In summary, the insulating sheet surface mounting equipment of the embodiment of the utility model adheres the tape patch to the surface of the insulating sheet according to the size and shape of the insulating sheet on the patch area, and cuts the insulating sheet after slicing, which effectively improves the efficiency of cutting and mounting the insulating sheet.
[0063] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.
Claims
1. An insulating sheet surface mounting device, characterized in that: It comprises a supporting assembly (10), a fixing mechanism (20), a limiting mechanism (30), a hot pressing assembly (40) and a slicing assembly (50), wherein: The support assembly (10) comprises a fixing plate (101) and a support member (102), wherein: The support member (102) is rotatably disposed on the fixed plate (101), and the support member (102) comprises a first shaft (1021), a second shaft (1022), a third shaft (1023), a driven shaft (1024) and a material collecting shaft (1025), wherein: The first shaft (1021), the second shaft (1022), the third shaft (1023) and the driven shaft (1024) are respectively rotatably arranged on the fixed plate (101), and the second shaft (1022) is arranged above the first shaft (1021); The material collecting shaft (1025) is rotatably arranged on the fixing plate (101); The fixing mechanism (20) is arranged on the fixing plate (101), and the fixing mechanism (20) comprises a support plate (201), a support frame (202) and a bottom plate (203), wherein: The support plates (201) are in two groups, and the two groups of support plates (201) are respectively fixedly arranged on the fixing plate (101); The support frames (202) are divided into two groups, and one end of the two groups of support frames (202) is respectively arranged on the support plate (201) of the lower group; The bottom plate (203) is arranged at the other end of the two groups of support frames (202); The limiting mechanism (30) is arranged on the top wall of the bottom plate (203); The hot pressing components (40) are divided into two groups, and the two groups of hot pressing components (40) are respectively arranged on opposite end surfaces of the two groups of support plates (201); The slicing assembly (50) is arranged on the fixing plate (101), and the slicing assembly (50) is rotatably arranged on the top wall of the bottom plate (203).
2. The insulating sheet surface mounting device according to claim 1, characterized in that: The limiting mechanism (30) comprises an outer frame (301), a rotating shaft (302) and a pressure rod (303), wherein: The outer frame (301) is arranged on the top wall of the bottom plate (203); The rotating shaft (302) is rotatably disposed within the outer frame (301); The pressure rod (303) is arranged on the rotating shaft (302).
3. The insulating sheet surface mounting device according to claim 1, characterized in that: The hot pressing assembly (40) comprises a movable shaft (401), a pressing roller (402) and a heating mechanism (403), wherein: The movable shaft (401) is rotatably arranged on the support plate (201); The pressure roller (402) is arranged on the movable shaft (401); The heating mechanism (403) is arranged on the supporting plate (201), and the heating mechanism (403) is close to the pressing roller (402).
4. The insulating sheet surface mounting device according to claim 3, characterized in that: The heating mechanism (403) comprises an outer fixing plate (4031) and a heat conducting component (4032), wherein: The outer fixing plate (4031) is arranged on the supporting plate (201); The heat-conducting components (4032) are multiple groups, and the multiple groups of heat-conducting components (4032) are respectively arranged on the outer fixing plate (4031).
5. The insulating sheet surface mounting device according to claim 1, characterized in that: The slicing assembly (50) comprises an outer pressure plate (501), a driving component (502), a limiting groove (503), a limiting rod (504), a transverse cutting component (505), a longitudinal cutting component (506) and a cotton pressing component (507), wherein: The driving component (502) is arranged on the fixing plate (101); The external pressure plate (501) is arranged at the output end of the driving component (502), and the external pressure plate (501) is arranged on the bottom plate (203); The limiting groove (503) is provided on the inner wall of the outer pressure plate (501); The limiting rod (504) is movably arranged in the limiting groove (503), and the limiting rod (504) is connected to the supporting plate (201); The transverse cutting components (505) are divided into two groups, and the two groups of transverse cutting components (505) are respectively arranged on the outer pressure plate (501); The longitudinal cutting components (506) are divided into two groups, and the two groups of longitudinal cutting components (506) are respectively arranged on the outer pressure plate (501); The pressing cotton (507) is arranged on the outer pressing plate (501), and the pressing cotton (507) is arranged between the transverse cutting component (505) and the longitudinal cutting component (506).
6. The insulating sheet surface mounting device according to claim 5, characterized in that: The outer pressure plate (501) is a semicircular plate, the bottom wall of the limiting rod (504) abuts against the inner wall of the limiting groove (503), and the bottom wall of the limiting rod (504) is provided with a rounded corner.
7. The insulating sheet surface mounting device according to claim 2, characterized in that: A knob is arranged on the rotating shaft (302), and the knob extends outside the outer frame (301). A rounded corner is arranged at the bottom of the pressure rod (303), and the rounded corner is in contact with the bottom plate (203).
