Shrinkage rate testing device

Abstract

The utility model discloses a shrinkage rate testing device, which is used for measuring the shrinkage rate of a fabric and is characterized by comprising a pressing plate used for tiling and pressing the fabric on a workbench; the pressing plate is at least provided with two mutually parallel through transverse grooves and two mutually parallel through vertical grooves; the marking mechanism comprises a first telescopic seat and a second telescopic seat which are arranged on the pressing plate; according to the technical scheme, the pressing plate is adopted to flatten fabric to prevent the fabric from wrinkling and deforming, then the distance between the two marking rods is adjusted and fixed through the first telescopic base and the second telescopic base, and then the two marking rods can directly mark and draw lines on the fabric only by penetrating through the pressing plate. In the marking process, the distance is adjusted, and the fabric is always kept in a flattened state, so that the line drawing distance is extremely accurate and does not have any deviation, the operation is simple, the manufacturing cost and the detection cost of the whole structure are low, and various small manufacturers can be benefited.

Description

Technical Field

[0001] The utility model relates to the technical field of textiles, in particular to a shrinkage testing device. Background Art

[0002] Currently, fabrics (cloths) are generally required to undergo shrinkage testing before being made into garments. This is to determine the shrinkage of the current batch of fabrics so that compensation and shrinkage prevention processes can be added during subsequent garment production to prevent the garments from shrinking after washing and affecting wearability.

[0003] The existing method generally involves marking two test lines 50 cm apart on the fabric, then washing it in a washing machine, measuring the distance between the two lines again after drying, and determining shrinkage or deformation based on the measured dimensions. However, some elastic fabrics are prone to deviation during this marking process, so researchers have adopted two solutions: First, manual line marking: a through-groove is created in a press plate, which flattens the elastic fabric, and then a marker is passed through the through-groove to mark the line. While this method allows for manual adjustment of the fabric's flatness, it is inefficient. Furthermore, due to the thickness of the marker, the groove created has a certain width, resulting in inaccurate spacing between the two lines. Second, large-scale shrinkage testing equipment is used. This equipment uses a camera to take a photo of the fabric, automatically marking the distance between the lines on the photo, and then using a visual inspection algorithm to calculate the fabric shrinkage. However, this method is costly and has a low cost-effectiveness, making it unsuitable for small manufacturers. Therefore, designing a cost-effective and accurate test device for measuring fabric shrinkage is an urgent issue for industry professionals. Utility Model Content

[0004] The utility model provides a shrinkage rate testing device with a simple structure, low manufacturing cost, high detection efficiency, and can solve the problem that the existing testing method cannot accurately measure the shrinkage rate of fabrics. The utility model mainly adopts the following technical solutions:

[0005] A shrinkage rate testing device, which is used to measure the shrinkage rate of fabric, is characterized in that it includes a pressing plate, which is used to lay the fabric flat and press it on a workbench; the pressing plate has at least two mutually parallel through-transverse grooves and two mutually parallel through-vertical grooves; a marking mechanism, which includes a first telescopic seat and a second telescopic seat arranged on the pressing plate, and two marking rods slidably arranged on the first telescopic seat and the second telescopic seat respectively, the first telescopic seat is arranged on the second telescopic seat, and slides relative to the second telescopic seat to adjust the distance between the two marking rods; the two marking rods slide through the first telescopic seat and the second telescopic seat respectively, and pass through one of the through-transverse grooves or the through-vertical grooves to act on the fabric for marking.

[0006] Preferably, the two marking rods are parallel to each other, and both are arranged vertically corresponding to the pressing plate.

[0007] Preferably, it further comprises a guiding mechanism, wherein the guiding mechanism is fixed on the two dozen marking rods, and the guiding mechanism can drive the two dozen marking rods to slide synchronously on the first telescopic seat and the second telescopic seat.

[0008] Preferably, the guide mechanism includes a first guide body and a second guide body respectively fixed to the two marking rods, the first guide body is sleeved on the second guide body, and when the first telescopic seat slides relative to the second telescopic seat, the first telescopic seat can link the first guide body to slide relative to the second guide body.

[0009] Preferably, the free end of the marking rod corresponding to the fabric is provided with a coating element for marking the fabric.

[0010] Preferably, the first telescopic seat and the second telescopic seat are respectively provided with a movable blocking cover, and the blocking cover has a first position and a second position through movable displacement; in the first position, the blocking cover can constrain the sliding stroke of the marking rod, so that the two marking rods cannot pass through the first telescopic seat and the second telescopic seat; in the second position, the two marking rods can slide and pass through the first telescopic seat and the second telescopic seat.

[0011] Preferably, the two blocking covers are hingedly connected to the first telescopic seat and the second telescopic seat respectively, and the two blocking covers can flip and move on the first telescopic seat and the second telescopic seat respectively to switch back and forth between the first position and the second position.

[0012] Preferably, the two blocking covers are slidably connected to the first telescopic seat and the second telescopic seat, and the two blocking covers can be slidably displaced on the first telescopic seat and the second telescopic seat respectively to switch back and forth between the first position and the second position.

[0013] Preferably, the pressing plate is provided with a handle, by which the pressing plate can be carried.

[0014] Preferably, there are multiple marking mechanisms, and the multiple marking mechanisms are assembled with each other, so that the multiple marking rods can mark the fabric through the two through-transverse grooves and the through-vertical grooves at the same time through sliding motion.

[0015] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The technical solution of the present invention provides a shrinkage rate testing device with a simple structure, low manufacturing cost, high detection efficiency, and can solve the problem that the existing testing method cannot accurately measure the shrinkage rate of fabrics; in the present invention, a pressing plate is first used to flatten the fabric to prevent the fabric from wrinkling and deformation, and then the spacing between the two dozen marking rods is adjusted and fixed by the first telescopic seat and the second telescopic seat. Then, the two dozen marking rods only need to pass through the pressing plate to directly mark the fabric. During this marking process, since the spacing has been adjusted and the fabric is always kept flat, the spacing between the marking lines is extremely accurate and there will be no deviation. The operation is simple, the manufacturing cost and the detection cost of the overall structure are low, and all kinds of small manufacturers can benefit.

[0017] (2) In this technical solution, the marking rods are parallel to each other, and both are set vertically to the corresponding pressure plates, so that the marking rods will not cause the marks to be tilted during subsequent marking, resulting in inaccurate line marking, saving time and effort, and accurate marking and drawing can be completed in one go.

[0018] (3) In this technical solution, the setting of the guide mechanism can synchronously drive the two marking rods to slide, which makes the detection speed faster and does not require a single marking rod to operate.

[0019] (4) In the present technical solution, a movable blocking cover can prevent the two dozen marking rods from passing through the first telescopic seat and the second telescopic seat, that is, preventing the two dozen marking rods from automatically passing through the first telescopic seat and the second telescopic seat, thereby preventing the coating elements on the marking rods from being contaminated everywhere and avoiding the occurrence of mislabeling on the fabric.

[0020] (5) In this embodiment, a handle is provided on the pressing plate, and the pressing plate can be lifted by the handle to quickly move the pressing plate to flatten and press the fabric on the workbench, or to move the pressing plate away from the fabric, thereby improving the testing efficiency.

[0021] (6) The method of assembling and setting up multiple marking mechanisms can quickly complete the marking and drawing of fabrics at one time, further improving the efficiency of marking and drawing, saving more time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0024] Figure 2This is a structural diagram of the marking rod in the first embodiment of the utility model acting in front of the fabric;

[0025] Figure 3 for Figure 2 A partial enlarged view of portion A shown;

[0026] Figure 4 This is a structural diagram of the first embodiment of the utility model after the marking rod acts on the fabric;

[0027] Figure 5 for Figure 4 A partial enlarged view of part B is shown.

[0028] The description of the accompanying drawings is as follows: 1. fabric; 2. workbench; 3. pressing plate; 31. through-horizontal groove; 32. through-vertical groove; 4. marking mechanism; 41. first telescopic seat; 42. second telescopic seat; 43. marking rod; 5. guiding mechanism; 51. first guide body; 52. second guide body; 6. coating element; 7. blocking cover. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] In the claims, description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" is to distinguish different objects rather than to describe a specific order.

[0031] In the claims, specification and the above-mentioned drawings of the present utility model, unless otherwise expressly defined, directional words, such as the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present utility model.

[0032] In the claims, specification and the above drawings of the present utility model, unless otherwise clearly defined, if the terms "fixed connection" or "fixed connection" are used, they should be understood in a broad sense, that is, any connection method without any displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0033] In the claims, description and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0034] First embodiment

[0035] See Figures 1 to 5 .

[0036] This embodiment provides a shrinkage rate testing device, which has a simple structure, low manufacturing cost, high detection efficiency, and can solve the problem that the existing testing method cannot accurately measure the shrinkage rate of the fabric 1; it mainly includes a pressing plate 3 and a marking mechanism 4; wherein,

[0037] Platen 3, see Figure 1 , which is used to lay and press the fabric 1 on the workbench 2; the pressing plate 3, the fabric 1 and the workbench 2 are all square in shape, wherein the pressing plate 3 has at least two mutually parallel through-going transverse grooves 31 and two mutually parallel through-going vertical grooves 32, and the through-going transverse grooves 31 and the through-going vertical grooves 32 are both close to the edge of the pressing plate 3;

[0038] Marking mechanism 4, see Figure 1 and Figure 2 It includes a first telescopic seat 41 and a second telescopic seat 42 provided on the pressing plate 3, and two marking rods 43 slidably provided on the first telescopic seat 41 and the second telescopic seat 42 respectively. The first telescopic seat 41 is sleeved on the second telescopic seat 42 and slides relative to the second telescopic seat 42 to adjust the distance between the two marking rods 43; the two marking rods 43 slide through the first telescopic seat 41 and the second telescopic seat 42 respectively, and select to pass through one of the through-transverse grooves 31 or the through-vertical grooves 32 to act on the fabric 1 for marking.

[0039] In this embodiment, the first telescopic seat 41 and the second telescopic seat 42 are respectively provided with connection holes, and the two marking rods 43 are slidably mounted on the first telescopic seat 41 and the second telescopic seat 42 through the connection holes.

[0040] In this embodiment, see Figure 1The horizontal groove 31 and the vertical groove 32 are both perforated structures. The groove widths of the horizontal groove 31 and the vertical groove 32 are equal, and the groove length of the vertical groove 32 is greater than the groove length of the horizontal groove 31; the groove lengths of the horizontal groove 31 and the vertical groove 32 are greater than the spacing between the two marking rods 43, that is, the longer the groove length, the larger the spacing available for marking and the larger the test range, and the groove width is large enough for the marking rod 43 to enter and shuttle in and out of the groove. If the groove width is too small, the marking rod 43 cannot enter the groove.

[0041] In this embodiment, see 1 and Figure 2 When the two marking rods 43 are slidably inserted into the first telescopic seat 41 and the second telescopic seat 42, the two marking rods 43 are parallel to each other, and both are vertically arranged toward the pressure plate 3. Therefore, when the marking rods 43 are subsequently marked, the mark will not be tilted, resulting in inaccurate marking.

[0042] In this embodiment, see Figure 3 The marking rod 43 is provided with a coating element 6 for marking the fabric 1 at the free end corresponding to the fabric 1. The coating element 6 can be a hard dyeing cotton strip, a soft dyeing cotton strip or a dyeing pen core, a dyeing chalk, etc., as long as it can achieve the purpose of dyeing and coating the fabric 1.

[0043] In this embodiment, see Figure 1 and Figure 2 , further comprising a guide mechanism 5, wherein a first telescopic seat 41 and a second telescopic seat 42 are provided for the sliding grooves of the marking rods 43 and are located below the marking rods 43, and the guide mechanism 5 is fixed above the two marking rods 43. The guide mechanism 5 comprises a first guide body 51 and a second guide body 52, which are respectively fixed to the two marking rods 43. The first guide body 51 is sleeved on the second guide body 52. ​​When the first telescopic seat 41 slides relative to the second telescopic seat 42, the first telescopic seat 41 can be linked to the first guide body 51 to slide relative to the second guide body 52. ​​When the two marking rods 43 need to slide, by controlling either the first guide body 51 or the second guide body 52, the two marking rods 43 can be synchronously driven to slide.

[0044] In this embodiment, see Figure 3 and Figure 5 The first telescopic seat 41 and the second telescopic seat 42 are respectively provided with a movable cover 7, and the cover 7 has a first position and a second position through movable displacement; Figure 3 In the first position, the blocking cover 7 can constrain the sliding stroke of the marking rod 43, so that the two marking rods 43 cannot pass through the first telescopic seat 41 and the second telescopic seat 42; Figure 5 In the second position, the two marking rods 43 can be slidably guided through the first telescopic seat 41 and the second telescopic seat 42.

[0045] In this embodiment, the two blocking covers 7 are hingedly connected to the first telescopic seat 41 and the second telescopic seat 42 respectively, and the two blocking covers 7 can be flipped on the first telescopic seat 41 and the second telescopic seat 42 respectively to switch back and forth between the first position and the second position; in other embodiments, the two blocking covers 7 and the first telescopic seat 41 and the second telescopic seat 42 can also be connected by sliding, that is, the two blocking covers 7 can be slidably displaced on the first telescopic seat 41 and the second telescopic seat 42 respectively to switch back and forth between the first position and the second position.

[0046] In this embodiment, a torsion spring is provided on the hinge axis of the cover 7. Under normal conditions, the torsion spring keeps the cover 7 in the first position. When a force is applied to the cover 7, the torsion spring begins to move and causes the cover 7 to flip. Therefore, in this embodiment, when marking is required, the two marking rods 43 slide forward relative to the first telescopic seat 41 and the second telescopic seat 42, respectively, to push the cover 7 open, thereby causing the cover 7 to flip to the second position under the force. When marking is completed, the marking rods 43 slide back, and the cover 7 returns to the first position under the action of the torsion spring.

[0047] In this embodiment, there are multiple marking mechanisms 4, and the multiple marking mechanisms 4 are assembled with each other, so that the multiple marking rods 43 can simultaneously pass through the two through-transverse grooves 31 and the through-vertical grooves 32 to mark the fabric 1 through sliding motion.

[0048] The working principle and use process of this utility model:

[0049] Before marking and drawing lines on the fabric 1, preparation work must be done first, that is, the handle drives the pressing plate 3 to press the fabric 1 onto the workbench 2, and the through horizontal grooves 31 and the through vertical grooves 32 on the pressing plate 3 correspond to the fabric 1.

[0050] When marking,

[0051] First, preset the spacing required for marking fabric 1, such as 20 for horizontal marking and 50 for vertical marking.

[0052] Second, control the first telescopic seat 41 to slide relative to the second telescopic seat 42 to adjust the distance between the two marking rods 43 to a preset value of 20;

[0053] Third, press the adjusted first telescopic seat 41 and the second telescopic seat 42 onto the pressing plate 3 so that they correspond to the through-groove 31 at the upper end of the pressing plate 3;

[0054] Fourth, the first guide body 51 and the second guide body 52 drive the two marking rods 43 to slide synchronously, push the cover 7 open and pass through the through transverse groove 31 to mark the fabric 1;

[0055] Fifth, reset the sliding mark rod 43 twice, so that the blocking cover 7 is automatically reset under the action of the torsion spring;

[0056] Sixth, adjust the positions of the first telescopic seat 41 and the second telescopic seat 42 relative to the pressing plate 3 so that they correspond to the through-groove 31 at the lower end of the pressing plate 3, and then repeat steps 4 and 5;

[0057] Seventh, similarly, adjust and control the first telescopic seat 41 to slide relative to the second telescopic seat 42, adjust the distance between the two marking rods 43 to the preset value of 50, and repeat the above operation until the marking rods 43 complete all marking lines.

[0058] When measurement is needed later, the marked fabric 1 is put into a washing machine for washing, and after drying, the distance between the two marked lines is measured again, and the shrinkage rate or deformation amount is determined based on the measured size. The utility model first uses a pressing plate 3 to flatten the fabric 1 to prevent the fabric 1 from wrinkling and deformation, and then adjusts and fixes the distance between the two marking rods 43 through the first telescopic seat 41 and the second telescopic seat 42. Then, the two marking rods 43 only need to pass through the pressing plate 3 to directly mark the fabric 1. During this marking process, since the distance has been adjusted and the fabric 1 is always kept flat, the distance between the marking lines is extremely accurate and there will be no deviation. The operation is simple, and the manufacturing cost and testing cost of the overall structure are low, which can benefit all kinds of small manufacturers.

[0059] Second embodiment

[0060] The difference between this embodiment and the first embodiment is that: the present embodiment is provided with multiple marking mechanisms 4 (not shown), and the multiple marking mechanisms 4 can be assembled and arranged with each other, so that the multiple marking rods 43 can simultaneously pass through the two through transverse grooves 31 and the through vertical grooves 32 to mark the fabric 1 through sliding movement; therefore, by assembling and arranging the multiple marking mechanisms 4 with each other, the marking and marking of the fabric 1 can be completed quickly at one time, and the efficiency of marking and marking is further improved, which is more time-saving and labor-saving; during actual marking, the four groups of first telescopic seats 41 and second telescopic seats 42 are controlled until the spacing between the four groups of marking rods 43 is adjusted, and then only the first guide block and the second guide block need to be controlled to drive all the marking rods 43 to slide at the same time, and the marking and marking of the fabric 1 can be completed at one time. Compared with the first embodiment, the marking speed is faster and the efficiency is higher.

[0061] The above description and embodiments are used to explain the scope of protection of the utility model, but do not constitute a limitation on the scope of protection of the utility model. Based on the enlightenment of the utility model or the above embodiments, modifications, equivalent replacements, or other improvements to the embodiments of the utility model or part of the technical features thereof that can be obtained by ordinary technicians in this field through logical analysis, reasoning, or limited experiments in combination with common knowledge, ordinary technical knowledge in this field and / or existing technology should be included in the scope of protection of the utility model.

Claims

1. A shrinkage test device for measuring the shrinkage of fabrics, characterized by: include A pressing plate is used to lay and press the fabric on the workbench; the pressing plate has at least two mutually parallel through-going transverse grooves and two mutually parallel through-going vertical grooves; The marking mechanism includes a first telescopic seat and a second telescopic seat provided on the pressure plate, and two marking rods slidably provided on the first telescopic seat and the second telescopic seat respectively. The first telescopic seat is provided on the second telescopic seat and slides relative to the second telescopic seat to adjust the distance between the two marking rods; the two marking rods are slidably guided through the first telescopic seat and the second telescopic seat respectively, and pass through one of the through horizontal grooves or the through vertical grooves to act on the fabric for marking.

2. A shrinkage testing device according to claim 1, characterized in that: The two marking rods are parallel to each other and both are vertically arranged corresponding to the pressing plate.

3. The shrinkage testing device according to claim 1, wherein: The utility model also comprises a guiding mechanism, which is fixed on the two dozen benchmarks and can drive the two dozen benchmarks to slide synchronously on the first telescopic seat and the second telescopic seat through the guiding mechanism.

4. A shrinkage testing device according to claim 3, characterized in that: The guide mechanism includes a first guide body and a second guide body respectively fixed to the two marking rods. The first guide body is sleeved on the second guide body. When the first telescopic seat slides relative to the second telescopic seat, the first telescopic seat can link the first guide body to slide relative to the second guide body.

5. The shrinkage testing device according to claim 1, wherein: The free end of the marking rod corresponding to the fabric is provided with a coating element for marking the fabric.

6. The shrinkage testing device according to claim 1, wherein: The first telescopic seat and the second telescopic seat are respectively provided with a movable blocking cover, and the blocking cover has a first position and a second position through movable displacement; in the first position, the blocking cover can restrict the sliding stroke of the marking rod, so that the two marking rods cannot pass through the first telescopic seat and the second telescopic seat; in the second position, the two marking rods can slide and pass through the first telescopic seat and the second telescopic seat.

7. The shrinkage testing device according to claim 6, characterized in that: The two blocking covers are hingedly connected to the first telescopic seat and the second telescopic seat respectively. The two blocking covers can flip and move on the first telescopic seat and the second telescopic seat respectively to switch back and forth between the first position and the second position.

8. The shrinkage testing device according to claim 6, wherein: The two blocking covers are slidably connected to the first telescopic seat and the second telescopic seat. The two blocking covers can be slidably displaced on the first telescopic seat and the second telescopic seat respectively to switch back and forth between the first position and the second position.

9. The shrinkage testing device according to claim 1, wherein: The pressing plate is provided with a handle portion, and the pressing plate can be carried by the handle portion.

10. A shrinkage testing device according to any one of claims 1 to 9, characterized in that: There are multiple marking mechanisms, and the multiple marking mechanisms are assembled with each other, so that the multiple marking rods can mark the fabric through the two through-transverse grooves and the through-vertical grooves at the same time through sliding motion.

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