Limiting device for sewing mattress cover

Abstract

The limiting device comprises a limiting frame, a clamping plate is arranged on the inner side of the limiting frame in a sliding mode, the two ends of the clamping plate in the length direction abut against the inner walls of the corresponding sides of the limiting frame respectively, and an adjusting structure used for adjusting the position of the clamping plate is arranged on one side of the limiting frame. A limiting space for limiting the mattress is formed between the inner wall of the other side of the limiting frame and the clamping plate. During use, a worker puts a mattress into the limiting space, then the clamping plate is adjusted to abut against the side wall of the mattress through the adjusting structure, the mattress can be limited through the clamping plate and the inner wall of the limiting frame, follow-up sewing of a mattress cover is facilitated, the adjusting mode is simple and convenient, and operation is more convenient.

Description

TECHNICAL FIELD

[0001] The application relates to the mattress production technical field, in particular to a limiting device for mattress cover sewing. BACKGROUND

[0002] With the development and progress of society and the improvement of people's living standards, people's requirements for sleep quality are getting higher and higher, and a comfortable elastic mattress helps to improve the sleep quality of users

[0003] The existing elastic mattress is usually composed of a cover and springs installed in the cover, in the process of sewing the outer cover, in order to increase the appearance of the mattress, different patterns are usually sewn on the cover, and in order to ensure that the cover and the spring are processed together and the spring can support the cover, it is also necessary to ensure that the spring is in a slightly compressed state. However, due to the elastic recovery force of the spring in the slightly compressed state, in order to avoid the influence of the elastic force of the spring on the sewing process of the cover, in the existing processing mode, the mattress is usually placed inside a square limiting frame, then a plurality of different specifications of pads are added at one end of the inside of the limiting frame, and the space inside the limiting frame is reduced by abutting between the pads, until the last pad abuts against the side wall of the mattress, and then the limiting of the mattress is realized by cooperation between the pad and the inner wall of the limiting frame.

[0004] However, in the actual use process, for the processing of different specifications of mattresses, the above-mentioned method needs workers to replace different numbers or different specifications of pads to effectively limit the mattress, and the overall operation process is relatively cumbersome, and there is room for improvement. Content of the utility model

[0005] In order to solve the problem that the existing method of limiting the mattress by stacking a plurality of pads is relatively cumbersome and inconvenient to use in the process of sewing the mattress cover, the application provides a limiting device for mattress cover sewing.

[0006] The application provides a limiting device for mattress cover sewing, which adopts the following technical scheme:

[0007] A limiting device for mattress cover sewing, comprising a limiting frame, a clamping plate is slidably arranged inside the limiting frame, the two ends of the length direction of the clamping plate are respectively abutted against the inner walls of the corresponding sides of the limiting frame, an adjusting structure for adjusting the position of the clamping plate is arranged on one side of the limiting frame, and a limiting space for limiting the mattress is formed between the other side inner wall of the limiting frame and the clamping plate.

[0008] By adopting the technical scheme, when the staff places the mattress to be sewn into the limiting space, the position of the clamping plate can be adjusted through the adjusting structure until the clamping plate abuts against the side wall of the mattress, so that the mattress is limited, thereby facilitating subsequent sewing on the cover, and after the sewing is completed, the clamping plate can be adjusted to be away from the mattress through the adjusting structure, and the overall use process is simple and convenient.

[0009] Preferably, the limiting frame comprises a bottom plate, a first side plate and a second side plate fixed on the bottom plate, a third side plate fixed on the bottom plate, and a fourth side plate arranged on the bottom plate, the first side plate, the second side plate, the third side plate and the fourth side plate are located on the same side of the bottom plate, the first side plate and the third side plate are arranged in parallel, the second side plate and the fourth side plate are arranged in parallel, the first side plate and the second side plate are perpendicular to each other, the clamping plate is parallel to the first side plate, the adjusting structure is arranged on the third side plate, and an abutting plate is further arranged in the limiting space, the abutting plate is parallel to the clamping plate, and a first driving structure for driving the abutting plate to slide to abut against the side wall of the mattress is further arranged on the clamping plate.

[0010] By adopting the technical scheme, the first side plate, the second side plate, the third side plate and the fourth side plate form a rectangular box-shaped structure to facilitate placing the mattress; when the mattress is placed or replaced, the size of the limiting space is adjusted through the cooperation of the adjusting structure and the clamping plate, and when the degree of compression of the mattress needs to be adjusted, the position of the abutting plate is fine-tuned through the first driving structure, so that the mattress is compressed to a specified degree, thereby facilitating subsequent sewing of the cover, and the overall use is more convenient.

[0011] Preferably, the adjusting structure comprises a screw rod rotatably connected to the clamping plate, a screw sleeve arranged on the third side plate, a hand wheel fixed to one end of the screw rod away from the clamping plate, and a guide rod fixed to one end of the clamping plate away from the screw rod, the screw rod is threadedly connected with the screw sleeve, the hand wheel and the clamping plate are located on both sides of the third side plate, and one end of the guide rod away from the clamping plate is slidably connected with the third side plate.

[0012] By adopting the technical scheme, when in use, the screw rod is rotated by rotating the hand wheel, and under the limitation of the screw sleeve, the clamping plate slides along the length direction of the second side plate synchronously with the rotation of the screw rod, so that the size of the limiting space is adjusted, and the overall operation process is simple and fast.

[0013] Preferably, the first driving structure comprises a sliding rod fixed on the abutting plate, a reset spring sleeved on the sliding rod, a limiting nut arranged on the sliding rod, and an abutting screw rod threadedly connected to the clamping plate, one end of the sliding rod penetrating through the clamping plate and threadedly connected to the limiting nut, the sliding rod being in sliding fit with the clamping plate, the limiting nut being in abutting fit with one side of the clamping plate away from the abutting plate, one end of the reset spring being in abutting fit with the abutting plate, the other end of the reset spring being in abutting fit with the clamping plate, and one end of the abutting screw rod being located between the clamping plate and the third side plate, the other end of the abutting screw rod penetrating through the clamping plate and being in abutting fit with the side wall of the abutting plate.

[0014] By adopting the above technical scheme, in the initial state, the end of the abutting screw rod is arranged away from the abutting plate, when the clamping plate is driven to slide to the abutting plate by the adjusting structure and the abutting plate abuts against the side wall of the mattress, the adjustment of the clamping plate is stopped, when it is needed to further adjust the compression degree of the abutting plate to the mattress, the end of the abutting screw rod is abutted against the side wall of the abutting plate by rotating the abutting screw rod, so as to drive the abutting plate to slide, in this process, the reset spring is gradually stretched, and the mattress is gradually compressed, when the mattress is processed, the abutting screw rod is rotated reversely, the abutting screw rod is separated from the abutting plate, and the abutting plate is separated from the mattress under the action of the reset spring, which is simple and convenient to use.

[0015] Preferably, the fourth side plate is arranged on the bottom plate in sliding along the length direction of the first side plate, the first side plate is provided with a second driving structure for driving the fourth side plate to slide, the third side plate is provided with a first waist-shaped hole, the length direction of the first waist-shaped hole is parallel to the length direction of the third side plate, and the guide rod slides in the first waist-shaped hole.

[0016] By adopting the above technical scheme, in use, the fourth side plate is driven to slide by the second driving structure, and the adjustment of the clamping plate is matched, so as to adapt to different specifications of the mattress, the first waist-shaped hole is arranged, the sliding adjustment of the fourth side plate is not affected by the guide rod, and the application range of the device is improved.

[0017] Preferably, the second driving structure comprises a connecting block fixed on one end of the first side plate away from the second side plate, and an adjusting screw rod threadedly connected to the connecting block, one end of the adjusting screw rod is located on one side of the connecting block away from the fourth side plate, and the other end of the adjusting screw rod penetrates through the connecting block and is rotationally connected to the fourth side plate.

[0018] By adopting the above technical scheme, in use, the fourth side plate is driven to slide by rotating the adjusting screw rod, so as to adjust the position of the fourth side plate, and the limiting space is adjusted, and the adjustment process is simple and fast.

[0019] Preferably, the clamping plate comprises a first plate body and a second plate body, and a first extension rod arranged between the first plate body and the second plate body, the first plate body is provided with a first slot, one end of the first extension rod is fixed on the second plate body, the other end of the first extension rod is slidably inserted into the first slot, the guide rod is arranged on the second plate body, the screw rod is arranged on the first plate body, the first extension rod is provided with a second waist-shaped hole, the length direction of the second waist-shaped hole is parallel to the length direction of the first extension rod, and one end of the abutting screw rod penetrates through the first plate body and the second waist-shaped hole and abuts against the side wall of the abutting plate.

[0020] By adopting the above technical scheme, when in use, through the cooperation of the first plate body, the second plate body and the first extension rod, when the fourth side plate is adjusted, the second plate body can be driven to move synchronously, so that the overall length of the clamping plate is changed, and when the size of the limiting space is adjusted, the two ends of the clamping plate are always in abutment with the second side plate and the fourth side plate, so that the abutment effect on the length is ensured.

[0021] Preferably, one end of the first plate body away from the second plate body and one end of the second plate body away from the first plate body are provided with rollers, the second side plate and the fourth side plate are provided with guide grooves, and the rollers are rollingly arranged in the guide grooves.

[0022] By adopting the above technical scheme, when in use, through the cooperation of the rollers and the guide grooves, on the one hand, the moving direction of the clamping plate is guided, and on the other hand, the movement of the clamping plate is facilitated during the adjustment of the clamping plate, which is more conducive to use.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. After the staff puts the mattress to be sewn into the limiting space, the position of the clamping plate can be adjusted through the adjusting structure until the clamping plate is in abutment with the side wall of the mattress, so that the mattress is limited, and then the subsequent sewing on the cover is facilitated, and after the sewing is completed, the clamping plate away from the mattress can be adjusted through the adjusting structure, and the whole use process is simple and convenient.

[0025] 2. Through the arrangement of the first driving structure and the abutting plate, the staff can further adjust the compression degree of the mattress during the sewing of the cover, which is more conducive to use.

[0026] 3. Through the cooperation of the fourth side plate arranged in a sliding mode and the clamping plate and the abutting plate, the size of the limiting space can be adjusted, so that the device is adapted to mattresses of different specifications and sizes, and the overall application range of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the isometric view mainly showing the overall structure in the first embodiment of the present application;

[0028] Figure 2 is the axis measurement schematic diagram mainly embodying the limiting frame structure in the embodiment one of the application;

[0029] Figure 3 is the axis measurement schematic diagram mainly embodying the adjusting structure in the embodiment one of the application;

[0030] Figure 4 is the exploded view mainly embodying the roller mounting structure in the embodiment one of the application;

[0031] Figure 5 is the axis measurement schematic diagram mainly embodying the overall structure in the embodiment two of the application;

[0032] Figure 6 is the axis measurement schematic diagram mainly embodying the second driving structure in the embodiment two of the application;

[0033] Figure 7 is the schematic diagram mainly embodying the clamping plate and the abutting plate structure in the embodiment two of the application.

[0034] Reference signs: 1, limiting frame; 11, bottom plate; 12, first side plate; 13, second side plate; 14, third side plate; 141, first waist-shaped hole; 15, fourth side plate; 2, clamping plate; 21, first plate body; 22, second plate body; 23, first extension rod; 24, second waist-shaped hole; 3, adjusting structure; 31, screw rod; 32, screw sleeve; 33, hand wheel; 34, guide rod; 4, limiting space; 5, abutting plate; 51, third plate body; 52, fourth plate body; 53, second extension rod; 6, first driving structure; 61, sliding rod; 62, return spring; 63, limiting nut; 64, abutting screw rod; 7, second driving structure; 71, connecting block; 72, adjusting screw rod; 8, roller; 9, guide groove. DETAILED DESCRIPTION

[0035] The following will be described in detail below with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 7 The application will be further described in detail.

[0036] The embodiment of the application discloses a limiting device for mattress cover sewing.

[0037] Embodiment 1:

[0038] Reference Figure 1 and Figure 2The utility model provides a mattress cover sewing limiting device, including the limiting frame 1 of horizontal placement, limiting frame 1 is by bottom plate 11, first side plate 12, second side plate 13, third side plate 14 and fourth side plate 15 are constituted, wherein, first side plate 12, second side plate 13, third side plate 14 and fourth side plate 15 are all located the upside of bottom plate 11, and first side plate 12, second side plate 13 and third side plate 14 are all welded and fixed on bottom plate 11, fourth side plate 15 is fixed on bottom plate 11 through bolt, first side plate 12 is arranged in parallel with third side plate 14, second side plate 13 and fourth side plate 15 are arranged in parallel, second side plate 13 and first side plate 12 are perpendicular to each other, second side plate 13 one end and first side plate 12 one end are welded and fixed together, in this embodiment, bottom plate 11, first side plate 12, second side plate 13, third side plate 14 and fourth side plate 15 are enclosed and form the rectangular box shape structure of top end opening.

[0039] Referring to Figure 1 And Figure 2 Clamping plate 2 is arranged in the inside of limiting frame 1, the length direction of clamping plate 2 is parallel with the length direction of third side plate 14, and one end of clamping plate 2 abuts against the inner wall of second side plate 13, the other end of clamping plate 2 abuts against the inner wall of fourth side plate 15, clamping plate 2 can slip along the length direction of second side plate 13, adjusting structure 3 is arranged on third side plate 14, and adjusting structure 3 is used to adjust the position of clamping plate 2, and limiting space 4 is formed between clamping plate 2, first side plate 12, second side plate 13 and fourth side plate 15;When using, staff places the mattress to be sewn into limiting space 4, adjusts the position of clamping plate 2 through adjusting structure 3, so that the side plate of clamping plate 2 abuts against the side wall of mattress, to realize the compression and location of mattress.

[0040] Referring to Figure 1 And Figure 3 Adjusting structure 3 includes screw rod 31, screw sleeve 32, hand wheel 33 and guide rod 34, one end of screw rod 31 is rotatably connected with the side wall of clamping plate 2, the other end of screw rod 31 is located outside limiting frame 1 after passing through third side plate 14, screw sleeve 32 is installed on the outer wall of third side plate 14, screw rod 31 is threadedly connected with screw sleeve 32, and screw rod 31 is connected with third side plate 14 through screw sleeve 32, hand wheel 33 is fixed on the end of screw rod 31 away from clamping plate 2, that is, hand wheel 33 and clamping plate 2 are located on the two sides of third side plate 14, guide rod 34 is located on the end of third side plate 14 close to fourth side plate 15, one end of guide rod 34 is fixed on clamping plate 2, the other end of guide rod 34 is located outside limiting frame 1 after passing through third side plate 14, and guide rod 34 is slidably connected with third side plate 14;When using, staff can drive screw rod 31 to rotate by rotating hand wheel 33, and then moves clamping plate 2 through the cooperation of guide rod 34 and third side plate 14.

[0041] Referring to Figure 1 And Figure 3Further, the limiting space 4 is provided with an abutting plate 5, which is parallel to the clamping plate 2 and located on the side of the clamping plate 2 facing the first side plate 12. A first driving structure 6 is arranged on the clamping plate 2 and used to drive the abutting plate 5 to slide along the length direction of the second side plate 13. The first driving structure 6 comprises a sliding rod 61, a return spring 62, a limiting nut 63 and an abutting lead screw 64. One end of the sliding rod 61 is welded and fixed on the side wall of the abutting plate 5, and the other end of the sliding rod 61 passes through the clamping plate 2 and is threadedly connected with the limiting nut 63. The limiting nut 63 is located between the clamping plate 2 and the third side plate 14 and abuts against the side wall of the clamping plate 2.

[0042] With reference to Figure 1 and Figure 3 The return spring 62 is sleeved on the sliding rod 61 and located between the clamping plate 2 and the abutting plate 5. One end of the return spring 62 abuts against the side wall of the clamping plate 2, and the other end of the return spring 62 abuts against the side wall of the abutting plate 5. In this embodiment, the elastic force of the return spring 62 is smaller than the elastic force of the mattress. The sliding rod 61, the return spring 62 and the limiting nut 63 are provided with two groups, and the two groups of sliding rods 61 are symmetrically arranged at two ends of the length direction of the abutting plate 5. The two groups of return springs 62 and the two groups of limiting nuts 63 are correspondingly arranged with the two groups of sliding rods 61. One end of the abutting lead screw 64 is located between the clamping plate 2 and the third side plate 14, and the other end of the abutting lead screw 64 abuts against the side wall of the abutting plate 5 after passing through the clamping plate 2.

[0043] With reference to Figure 1 and Figure 3 In use, the staff first drives the clamping plate 2 to approach the mattress through the adjusting structure 3 until the abutting plate 5 abuts against the side wall of the mattress and the return spring 62 is in a normal state. Then, the staff can drive the abutting lead screw 64 to move along the axial direction of the abutting lead screw 64 according to the needs of the mattress cover sewing process. Under the abutting and pushing of the end of the abutting lead screw 64 to the abutting plate 5, the abutting plate 5 is driven to slide away from the clamping plate 2. In this process, the return spring 62 is gradually stretched, and the side wall of the mattress is abutted and tightened at the same time until the mattress is compressed to a specified state. When the abutting lead screw 64 is reversely rotated, the end of the abutting lead screw 64 gradually separates from the abutting plate 5. At this time, under the action of the elastic force of the mattress itself and the restoring force of the return spring 62, the abutting plate 5 slides towards the clamping plate 2 until the return spring 62 returns to the original state. When the end of the abutting lead screw 64 separates from the abutting plate 5 by a certain distance, the mattress returns to the initial state. Then, the mattress can be taken out of the limiting space 4.

[0044] With reference to Figure 3 and Figure 4In the process of moving the clamping plate 2 by adjusting the structure 3, in order to facilitate the movement of the clamping plate 2, rollers 8 are arranged at both ends of the clamping plate 2 in the length direction, and guide grooves 9 are arranged on the second side plate 13 and the fourth side plate 15 correspondingly, and the rollers 8 can roll in the length direction of the guide grooves 9; in use, the rolling direction of the rollers 8 is guided by the guide grooves 9, and the influence of the bottom plate 11 on the clamping plate 2 in the process of moving the clamping plate 2 is reduced by the rollers 8, so as to facilitate the adjustment of the clamping plate 2 by the staff.

[0045] The implementation principle of the embodiment of the application is as follows: in use, the staff places the mattress to be processed into the limiting space 4, and then rotates the hand wheel 33 to drive the screw rod 31 to rotate, the screw rod 31 drives the clamping plate 2 to move towards the mattress during the rotation, and when the abutting plate 5 abuts against the mattress, the clamping plate 2 continues to move, the return spring 62 is gradually compressed under the elastic extrusion of the mattress, and the mattress is also compressed synchronously, and when the mattress is compressed to a specified state, the rotation of the hand wheel 33 is stopped, the abutting screw rod 64 is rotated, the end of the abutting screw rod 64 abuts against the side wall of the abutting plate 5, the abutting plate 5 is prevented from continuing to move towards the clamping plate 2, and then the staff performs the sewing operation on the mattress cover, and in the operation process, if the mattress needs to be further compressed, the staff can rotate the abutting screw rod 64 to move the abutting screw rod 64 towards the mattress, and the abutting plate 5 is gradually moved under the pushing of the abutting screw rod 64, so as to realize the extrusion of the mattress, and the whole adjustment process is simple and convenient, and is more conducive to the sewing operation of the staff on the mattress cover.

[0046] The difference between the embodiment 2 and the embodiment 1 is that:

[0047] Referring to Figure 5 In the embodiment, the fourth side plate 15 is slidably arranged on the bottom plate 11, and the sliding direction of the fourth side plate 15 is parallel to the length direction of the first side plate 12, in order to prevent the guide rod 34 from affecting the movement of the fourth side plate 15, the first waist-shaped hole 141 is arranged on the third side plate 14, the length direction of the first waist-shaped hole 141 is parallel to the length direction of the third side plate 14, and the guide rod 34 is slidably arranged in the first waist-shaped hole 141; at the same time, a group of second driving structures 7 are arranged on the first side plate 12 and the third side plate 14, the second driving structures 7 are used to drive the fourth side plate 15 to slide, the arrangement modes of the second driving structures 7 on the first side plate 12 and the third side plate 14 are the same, and therefore the second driving structures 7 on the first side plate 12 are taken as an example for description.

[0048] Referring to Figure 5 and Figure 6, the second driving structure 7 comprises a connecting block 71 and an adjusting screw rod 72, the connecting block 71 is integrally formed at one end of the first side plate 12 away from the second side plate 13, and the length direction of the connecting block 71 is perpendicular to the length direction of the first side plate 12, one end of the adjusting screw rod 72 is located outside the limiting frame 1, the other end of the adjusting screw rod 72 is rotatably connected to the fourth side plate 15 through the connecting block 71, and the rotation axis of the adjusting screw rod 72 coincides with the axis of the adjusting screw rod 72, and the adjusting screw rod 72 is threadedly connected with the connecting block 71; in use, by rotating the adjusting screw rod 72, the adjusting screw rod 72 slides along the axis under the cooperation of the connecting block 71, so as to drive the fourth side plate 15 to slide, so as to adjust the width of the limiting frame 1, and then cooperate with the setting of the adjusting structure 3 and the clamping plate 2, so as to adjust the size of the limiting frame 1, and then adapt to different specifications of the mattress.

[0049] With reference to Figure 5 and Figure 7 , since the sliding of the fourth side plate 15 will cause the distance between the fourth side plate 15 and the second side plate 13 to change, in order to adapt to the change, in the embodiment, the clamping plate 2 is composed of a first plate body 21, a second plate body 22 and a first extension rod 23, one end of the first plate body 21 abuts against the second side plate 13, the other end of the first plate body 21 is provided with a first insertion slot, one end of the second plate body 22 abuts against the fourth side plate 15, the other end of the second plate body 22 is integrally formed with one end of the first extension rod 23, and the other end of the first extension rod 23 away from the second plate body 22 is slidably inserted into the first insertion slot, and the rollers 8 at both ends of the clamping plate 2 are respectively installed at one end of the first plate body 21 away from the second plate body 22 and one end of the second plate body 22 away from the first plate body 21.

[0050] With reference to Figure 5 and Figure 7 , the screw rod 31 is arranged on the first plate body 21, and a second waist-shaped hole 24 is further arranged on the first extension rod 23, the length direction of the second waist-shaped hole 24 is parallel to the length direction of the first extension rod 23, and one end of the abutting screw rod 64 abuts against the side wall of the abutting plate 5 after passing through the first plate body 21 and the second waist-shaped hole 24; when the fourth side plate 15 slides, the second plate body 22 is driven to slide under the action of the rollers 8 and the guide grooves 9, so that the first extension rod 23 slides, and thus it is ensured that the two ends of the clamping plate 2 abut against the inner side wall of the limiting frame 1 during the adjustment of the size of the limiting space 4, so as to ensure the abutting and supporting effect of the clamping plate 2 on the side wall of the mattress after adjustment.

[0051] With reference to Figure 5 and Figure 7In addition, the abutting plate 5 is composed of a third plate body 51, a fourth plate body 52 and a second extension rod 53, one end of the third plate body 51 away from the second plate body 22 abuts against the second side plate 13, the other end of the third plate body 51 is provided with a second slot, one end of the fourth plate body 52 away from the third plate body 51 abuts against the fourth side plate 15, the other end of the fourth plate body 52 is welded and fixed with one end of the second extension rod 53, the other end of the second extension rod 53 is slidably inserted into the second slot, and one set of the sliding rod 61, the reset spring 62 and the limiting nut 63 are arranged corresponding to the third plate body 51, and the other set of the sliding rod 61, the reset spring 62 and the limiting nut 63 are arranged corresponding to the fourth plate body 52, and one end of the abutting screw rod 64 abuts against the side wall of the third plate body 51.

[0052] The implementation principle of the embodiment of the application is as follows: after the staff member puts the mattress to be processed into the limiting space 4, first, the fourth side plate 15 is adjusted to abut against the side wall of the mattress according to the size of the mattress, under the pushing of the fourth side plate 15, the length of the clamping plate 2 and the abutting plate 5 changes, then the hand wheel 33 is screwed to drive the screw rod 31 to rotate, the screw rod 31 drives the clamping plate 2 to move towards the mattress during the rotation process, until the abutting plate 5 abuts against the mattress, and then the clamping plate 2 continues to move, under the elastic extrusion of the mattress, the reset spring 62 is gradually compressed, and the mattress is also compressed synchronously, until the mattress is compressed to the specified state, the hand wheel 33 is stopped, and the abutting screw rod 64 is rotated, so that one end of the abutting screw rod 64 abuts against the side wall of the abutting plate 5, to prevent the abutting plate 5 from continuing to move towards the clamping plate 2, then the staff member performs the sewing operation on the mattress cover, if further compression of the mattress is needed during the operation process, the staff member can rotate the abutting screw rod 64 to move the abutting screw rod 64 towards the mattress, under the pushing of the abutting screw rod 64, the abutting plate 5 gradually moves, so as to realize the extrusion of the mattress, the overall adjustment process is simple and convenient, and the application range of the device as a whole is improved.

[0053] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A position limiting device for mattress cover sewing, characterized by: The application relates to a limiting frame (1), the inner side of the limiting frame (1) is slidably provided with a clamping plate (2), the two ends of the length direction of the clamping plate (2) are respectively in abutment with the inner walls of the corresponding sides of the limiting frame (1), one side of the limiting frame (1) is provided with an adjusting structure (3) for adjusting the position of the clamping plate (2), and the other side of the limiting frame (1) and the clamping plate (2) form a limiting space (4) for limiting a mattress. The limiting frame (1) comprises a bottom plate (11), a first side plate (12) and a second side plate (13) fixed on the bottom plate (11), a third side plate (14) fixed on the bottom plate (11), and a fourth side plate (15) arranged on the bottom plate (11), the first side plate (12), the second side plate (13), the third side plate (14) and the fourth side plate (15) are located on the same side of the bottom plate (11), the first side plate (12) and the third side plate (14) are arranged in parallel, the second side plate (13) and the fourth side plate (15) are arranged in parallel, the first side plate (12) is perpendicular to the second side plate (13), the clamping plate (2) is parallel to the first side plate (12), the adjusting structure (3) is arranged on the third side plate (14), and an abutment plate (5) is further arranged in the limiting space (4) and is parallel to the clamping plate (2), and a first driving structure (6) for driving the abutment plate (5) to slide to abut against the side wall of the mattress is further arranged on the clamping plate (2). The adjusting structure (3) comprises a screw rod (31) rotatably connected to the clamping plate (2), a screw sleeve (32) arranged on the third side plate (14), a hand wheel (33) fixed to one end of the screw rod (31) away from the clamping plate (2), and a guide rod (34) fixed to one side of the clamping plate (2) away from the screw rod (31), the screw rod (31) is in threaded connection with the screw sleeve (32), the hand wheel (33) and the clamping plate (2) are located on the two sides of the third side plate (14), and one end of the guide rod (34) away from the clamping plate (2) is in sliding insertion fit with the third side plate (14).

2. The position limiting device for mattress cover sewing according to claim 1, characterized in that: The first driving structure (6) comprises a sliding rod (61) fixed to the abutment plate (5), a reset spring (62) sleeved on the sliding rod (61), a limiting nut (63) arranged on the sliding rod (61), and an abutment screw rod (64) in threaded connection with the clamping plate (2), one end of the sliding rod (61) away from the abutment plate (5) is in threaded connection with the limiting nut (63) after penetrating through the clamping plate (2), the sliding rod (61) is in sliding fit with the clamping plate (2), the limiting nut (63) is in abutment fit with one side of the clamping plate (2) away from the abutment plate (5), one end of the reset spring (62) is in abutment with the abutment plate (5), the other end of the reset spring (62) is in abutment with the clamping plate (2), one end of the abutment screw rod (64) is located between the clamping plate (2) and the third side plate (14), and the other end of the abutment screw rod (64) is in abutment fit with the side wall of the abutment plate (5) after penetrating through the clamping plate (2).

3. The limiting device for mattress cover sewing according to claim 2, characterized in that: The fourth side plate (15) is arranged on the bottom plate (11) in a sliding manner along the length direction of the first side plate (12), the first side plate (12) is provided with a second driving structure (7) for driving the fourth side plate (15) to slide, the third side plate (14) is provided with a first waist-shaped hole (141), the length direction of the first waist-shaped hole (141) is parallel to the length direction of the third side plate (14), and the guide rod (34) slides in the first waist-shaped hole (141).

4. The limiting device for mattress cover sewing according to claim 3, characterized in that: The second driving structure (7) comprises a connecting block (71) fixed at one end of the first side plate (12) away from the second side plate (13), and an adjusting screw rod (72) threadedly connected to the connecting block (71), one end of the adjusting screw rod (72) is located on the side of the connecting block (71) away from the fourth side plate (15), and the other end of the adjusting screw rod (72) is rotatably connected to the fourth side plate (15) after penetrating through the connecting block (71).

5. The mattress cover sewing position limiting device according to claim 3, wherein: The clamping plate (2) comprises a first plate body (21) and a second plate body (22), and a first extension rod (23) arranged between the first plate body (21) and the second plate body (22), the first plate body (21) is provided with a first slot, one end of the first extension rod (23) is fixed on the second plate body (22), the other end of the first extension rod (23) is slidably connected with the first slot, the guide rod (34) is arranged on the second plate body (22), the screw rod (31) is arranged on the first plate body (21), the first extension rod (23) is provided with a second waist-shaped hole (24), the length direction of the second waist-shaped hole (24) is parallel to the length direction of the first extension rod (23), and one end of the abutting screw rod (64) abuts against the side wall of the abutting plate (5) after penetrating through the first plate body (21) and the second waist-shaped hole (24).

6. The mattress cover sewing position limiting device according to claim 5, wherein: One end of the first plate body (21) away from the second plate body (22) and one end of the second plate body (22) away from the first plate body (21) are provided with a roller (8), the second side plate (13) and the fourth side plate (15) are provided with a guide groove (9), and the roller (8) is arranged in the guide groove (9) in a rolling manner.

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